CN114415253B - Pressing ring detection system of motor output shaft - Google Patents
Pressing ring detection system of motor output shaft Download PDFInfo
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- CN114415253B CN114415253B CN202210062210.8A CN202210062210A CN114415253B CN 114415253 B CN114415253 B CN 114415253B CN 202210062210 A CN202210062210 A CN 202210062210A CN 114415253 B CN114415253 B CN 114415253B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/026—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by measuring distance between sensor and object
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Abstract
The invention discloses a pressing ring detection system of a motor output shaft, which comprises a lower pressing ring detection device, an upper pressing ring loss detection device and a pressing ring position detection device, wherein the lower pressing ring detection device is connected with the upper pressing ring loss detection device; the lower pressing ring detection device is used for detecting whether the lower pressing ring on the shaft lever provided with the lower pressing ring is installed in place or not; the upper pressing ring missing detection device is used for detecting whether the upper pressing ring on the shaft lever is missing or not after the gear and the upper pressing ring are arranged on the shaft lever detected as a qualified product by the lower pressing ring detection device; the pressing ring position detection device is used for detecting the distance from the upper pressing ring on the shaft rod detected as a qualified product by the upper pressing ring missing detection device to the upper pressing ring and judging whether the detected distance is equal to a set distance. The invention can accurately detect whether the mounting positions and the mounting quantity of the upper pressing ring and the lower pressing ring are correct or not.
Description
Technical Field
The invention relates to the technical field of motor manufacturing, in particular to a pressing ring detection system of a motor output shaft.
Background
The output shaft of the motor is one of important components of the motor, and the output shaft of some micro motors has a complex structure and can be assembled through a plurality of processes. As shown in fig. 1, the motor output shaft of the prior art includes a shaft, a lower pressing ring 13, a gear 14 and a lower pressing ring 15, the shaft includes a spindle shaft 11 and a gear mounting rod 12 coaxially connected to the spindle shaft 11, and the gear mounting rod 12 has a size smaller than that of the spindle shaft 11 so as to form a chuck 10 on the top surface of the spindle shaft 11. In assembling such an output shaft of a motor, the gear mounting rod 12 needs to pass through the lower pressing ring 13, the lower pressing ring 13 should be placed on the chuck 10, then the gear 14 needs to be mounted on the gear mounting rod 12, finally the upper pressing ring 15 is mounted on the gear mounting rod 12, and the upper pressing ring 15 is put into the clamping groove 16 on the end face of the gear 14.
As disclosed in chinese patent publication No. CN108768110A, this patent document discloses an assembly machine for a motor shaft to assemble the motor output shaft. In order to detect whether the pressing ring is assembled on the output shaft of the motor or not, the patent also discloses a detection device for the pressing ring, but the pressing ring detection device can only detect whether the pressing ring is arranged on the output shaft of the motor or not, cannot detect whether the pressing ring is arranged in place or not, and cannot judge whether the number of the arranged pressing rings is correct or not.
Disclosure of Invention
The invention provides a pressing ring detection system of a motor output shaft, which can accurately detect whether the installation positions and the installation quantity of an upper pressing ring and a lower pressing ring are correct or not.
In order to solve the problems, the invention adopts the following technical scheme:
the embodiment of the invention provides a pressing ring detection system of a motor output shaft, which comprises a lower pressing ring detection device, an upper pressing ring loss detection device and a pressing ring position detection device, wherein the lower pressing ring detection device is connected with the upper pressing ring loss detection device; the lower pressing ring detection device is used for detecting whether the lower pressing ring on the shaft lever provided with the lower pressing ring is installed in place or not; the upper pressing ring missing detection device is used for detecting whether the upper pressing ring on the shaft lever is missing or not after the gear and the upper pressing ring are arranged on the shaft lever detected as a qualified product by the lower pressing ring detection device; the pressing ring position detection device is used for detecting the distance from the upper pressing ring on the shaft rod detected as a qualified product by the upper pressing ring missing detection device to the upper pressing ring and judging whether the detected distance is equal to a set distance.
In some embodiments, the lower pressing ring detection device comprises a support rod, a vertical moving assembly and a fixed seat connected with the vertical moving assembly are arranged on the support rod, and the vertical moving assembly is used for driving the fixed seat to move in the vertical direction; the fixed seat is connected with a pressure lever in a sliding manner along the vertical direction, and the bottom end of the pressure lever is used for pressing and covering a lower pressure ring to be detected; a shielding plate is fixed on the pressure rod, a light-transmitting slit is transversely arranged on the shielding plate, and a photoelectric switch is arranged on the fixed seat; when the photoelectric switch is not under the action of external force, the pressure rod is positioned at the lowest sliding position relative to the fixed seat, the light beam emitted by the photoelectric switch is positioned above the light-transmitting slit, and the shielding plate blocks the light beam of the photoelectric switch; the vertical moving assembly is used for driving the fixing seat to move downwards for a preset distance from an initial position, and if and only if the lower pressing ring on the shaft rod is installed in place, a light beam of the photoelectric switch penetrates through the light-transmitting slit to trigger the photoelectric switch.
In some embodiments, when the fixing seat is in the initial position, a distance m between the bottom end of the pressing rod and a clamping table on the shaft rod, a thickness d of a lower pressing ring to be detected, a distance n between a light beam emitted by the photoelectric switch and the light-transmitting slit, and the preset distance p satisfy the following conditions: p is m-d + n; after the vertical moving assembly drives the fixing seat to move downwards from the initial position by a preset distance p, if the photoelectric switch is triggered, the lower pressing ring on the shaft rod is determined to be installed in place.
In some embodiments, when the lower pressing ring is detected, the pressing rod is arranged coaxially with the shaft rod, and an insertion groove into which the shaft rod can be inserted is arranged on the end face of the bottom end of the pressing rod.
In some embodiments, the upper pressing ring loss detection device comprises a fixed rod, a vertical driving assembly arranged on the fixed rod, and a detection seat connected with the vertical driving assembly, wherein the vertical driving assembly is used for driving the detection seat to move along the vertical direction; the detection seat is provided with two detection probes separated from each other, and the distance between the two detection probes is matched with the diameter of the upper pressing ring.
In some embodiments, the upper pressing ring missing detection device further comprises a power supply, a protection resistor and a current sensor, wherein one detection probe, the power supply, the protection resistor, the current sensor and the other detection probe are electrically connected in sequence.
In some embodiments, the clamping ring position detecting device comprises a support plate, a mounting bracket is fixed on the support plate, and a laser range finder is fixed on the mounting bracket and used for downwards emitting a light beam to detect the distance from the laser range finder to the upper clamping ring on the shaft rod.
In some embodiments, the mounting bracket comprises an adjusting bracket and a detection fixing plate, the adjusting bracket is connected with the support plate in a transverse sliding mode, the detection fixing plate is connected with the adjusting bracket in a longitudinal sliding mode, and the laser range finder is fixed on the detection fixing plate.
In some embodiments, the mounting bracket is provided with a first bolt and a second bolt, the mounting bracket is provided with a first sliding groove extending along the transverse direction and penetrating through the mounting bracket and a second sliding groove extending along the longitudinal direction and penetrating through the mounting bracket, the supporting plate is provided with a first threaded hole, the detection fixing plate is provided with a second threaded hole, the first bolt passes through the first sliding groove and is in threaded connection with the first threaded hole, and the second bolt passes through the second sliding groove and is in threaded connection with the second threaded hole.
In some embodiments, the pressing ring detection system of the motor output shaft further comprises a conveying device, wherein the conveying device is used for conveying the shaft rod provided with the lower pressing ring to the position below the lower pressing ring detection device, conveying the shaft rod to the position below the upper pressing ring missing detection device after the shaft rod detected as a qualified product by the lower pressing ring detection device is provided with the gear and the upper pressing ring, and conveying the shaft rod detected as a qualified product by the upper pressing ring missing detection device to the position below the pressing ring position detection device.
The invention has at least the following beneficial effects: the lower clamping ring detection device can detect whether the lower clamping ring on the shaft lever is installed in place or not, the upper clamping ring missing detection device can detect whether the upper clamping ring on the shaft lever is missing or not, whether the upper clamping ring and the lower clamping ring are missing or not can be determined, meanwhile, the clamping ring position detection device is used for detecting the distance from the upper clamping ring on the shaft lever, detected as a qualified product, to the upper clamping ring missing detection device, and if the number of the clamping rings is increased or the upper clamping rings are not installed in place, the distance from the upper clamping ring to the clamping ring position detection device is smaller than a set distance, so that whether the installation positions and the installation number of the upper clamping ring and the lower clamping ring are correct or not can be accurately detected.
Drawings
FIG. 1 is an exploded view of an output shaft of a prior art motor;
fig. 2 is a schematic structural diagram of a pressing ring detection system of a motor output shaft according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a lower pressure ring detection apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a lower pressing ring detection apparatus in another view angle according to an embodiment of the present invention;
FIG. 5 is a schematic diagram illustrating a state change of a lower pressure ring detection apparatus according to an embodiment of the present invention when detecting the lower pressure ring;
FIG. 6 is a schematic cross-sectional view of a fixing base according to an embodiment of the invention;
FIG. 7 is a schematic structural diagram of a shielding plate, a pressing rod, a fixing seat and an optoelectronic switch according to an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a positioning assembly according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of an upper pressing ring missing detection apparatus according to an embodiment of the present invention;
FIG. 10 is a schematic structural diagram of an upper pressing ring missing detection apparatus according to another embodiment of the present invention;
FIG. 11 is a schematic view of a clamping assembly according to an embodiment of the present invention;
fig. 12 is a schematic structural view of a pressing ring position detecting device according to an embodiment of the present invention;
fig. 13 is a schematic structural view of a mounting bracket and a laser range finder according to an embodiment of the present invention.
Wherein the reference numbers are:
the clamping device comprises a clamping table 10, a main shaft rod 11, a gear mounting rod 12, a lower pressing ring 13, a gear 14, an upper pressing ring 15 and a clamping groove 16;
the light source module comprises a support rod 1100, a limiting piece 1110, a vertical moving assembly 1200, a connecting plate 1210, a vertical guide rail 1220, a sliding block 1230, a driver 1240, a fixed seat 1300, a first through hole 1310, a second through hole 1320, a pressing block 1330, a third through hole 1331, a pressing rod 1400, a slot 1410, a snap ring 1420, a first spring 1430, a shielding plate 1500, a light-transmitting slit 1510, a photoelectric switch 1600, a light beam 1610, a positioning assembly 1800, a connecting seat 1810, a push rod 1820, a positioning block 1830, a guide wheel 1840 and a second spring 1850;
the clamping ring missing detection device 200, the fixing rod 201, the vertical driving assembly 210, the detection bottom plate 211, the sliding block 212, the vertical driver 213, the detection seat 220, the detection probe 230, the clamping assembly 240, the clamping fixed seat 241, the clamping driver 242, the clamping jaw 243 and the clamping groove 244;
a support plate 310, a mounting bracket 320, an adjusting bracket 321, a detection fixing plate 322, a first adjusting plate 323, a second adjusting plate 324, a first sliding groove 325, a second sliding groove 326, a laser range finder 330;
the conveying device 400, the turntable 410, the turntable driver 420 and the output shaft placing seat 430.
Detailed Description
The present disclosure provides the following description with reference to the accompanying drawings to assist in a comprehensive understanding of various embodiments of the disclosure as defined by the claims and their equivalents. The description includes various specific details to aid understanding, but such details are to be regarded as exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the present disclosure. Moreover, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.
The terms and words used in the following description and claims are not limited to the literal meanings, but are used by the inventors to enable a clear and consistent understanding of the disclosure. Accordingly, it will be apparent to those skilled in the art that the following descriptions of the various embodiments of the present disclosure are provided for illustration only and not for the purpose of limiting the disclosure as defined by the appended claims and their equivalents.
The terms "having," "may have," "including," or "may include" used in various embodiments of the present disclosure indicate the presence of the respective functions, operations, elements, etc., disclosed, but do not limit additional one or more functions, operations, elements, etc. Furthermore, it is to be understood that the terms "comprises" or "comprising," when used in various embodiments of the present disclosure, are intended to specify the presence of stated features, integers, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, operations, elements, components, or groups thereof.
It will be understood that when an element (e.g., a first element) is "connected" to another element (e.g., a second element), the element can be directly connected to the other element or intervening elements (e.g., a third element) may be present.
An embodiment of the present invention provides a pressing ring detection system for a motor output shaft, as shown in fig. 2, which includes a lower pressing ring detection device 100, an upper pressing ring missing detection device 200, and a pressing ring position detection device 300. The pressing ring detection system of the motor output shaft does not detect the assembled motor output shaft, but detects the motor output shaft in the assembling process, can work together with assembling equipment of the motor output shaft in a matched mode, achieves the effect of detecting while assembling, can stop further assembling of the motor output shaft in advance if a certain motor output shaft is detected to be unqualified, and avoids unnecessary material waste.
After having installed lower clamping ring on the axostylus axostyle, lower clamping ring detection device 100 detects the axostylus axostyle that has installed lower clamping ring to whether the lower clamping ring on the detection axostylus axostyle installed in place, if lower clamping ring on the axostylus axostyle installed in place, this axostylus axostyle is qualified for this item of detection, if lower clamping ring on the axostylus axostyle does not install in place, then this axostylus axostyle is unqualified for this item of detection. For the axostylus axostyle that lower clamping ring detection device 100 detected as the certified product, gear and last clamping ring will be installed on this axostylus axostyle subsequently, for the axostylus axostyle that lower clamping ring detection device 100 detected as the defective product, gear and last clamping ring can not be installed on this axostylus axostyle subsequently. After the lower clamping ring detection device 100 detects that the gear and the upper clamping ring are installed on the shaft rod of the qualified product, the upper clamping ring missing detection device 200 detects whether the upper clamping ring on the shaft rod is missing, if the upper clamping ring on the shaft rod is not missing, the shaft rod is detected as the qualified product for the item, and otherwise, the shaft rod is detected as the unqualified product for the item. The pressing ring position detecting device 300 detects the shaft lever detected as a qualified product by the upper pressing ring missing detecting device 200, specifically detects the distance from the upper pressing ring on the shaft lever to the shaft lever, and determines whether the detected distance is equal to a set distance. Since the position of the pressing ring position detecting means 300 is fixed, if the motor output shaft is a good product, the distance from the upper pressing ring to the pressing ring position detecting means 300 should be uniform and fixed. If the number of the pressing rings is increased or the upper pressing ring is not installed in place, the distance from the upper pressing ring to the pressing ring position detection device 300 is smaller than the set distance, and therefore whether the installation positions and the installation number of the upper pressing ring and the lower pressing ring are correct or not can be accurately detected through the common detection of the three detection devices.
In this embodiment, the lower retainer ring detection device 100, the upper retainer ring missing detection device 200, and the retainer ring position detection device 300 can all be electrically connected to the controller, the lower retainer ring detection device 100, the upper retainer ring missing detection device 200, and the retainer ring position detection device 300 can send the detection results to the controller, and the controller can know the final detection results.
In some embodiments, as shown in fig. 3 and 4, the supporting rod 1100 includes a supporting rod 1100, the supporting rod 1100 is provided with a vertical moving assembly 1200 and a fixing base 1300 connected to the vertical moving assembly 1200, and the vertical moving assembly 1200 is used for driving the fixing base 1300 to move in a vertical direction. The fixing base 1300 is slidably connected with a pressing rod 1400 along a vertical direction, so that the pressing rod 1400 can move along the vertical direction relative to the fixing base 1300. When detecting the lower clamping ring of motor output shaft, the lower clamping ring on the axostylus axostyle needs to move to the below of depression bar 1400, and vertical removal subassembly 1200 is used for driving fixing base 1300 and moves down along vertical direction, and the bottom of depression bar 1400 is used for the gland to wait to detect on the lower clamping ring.
The pressing rod 1400 is fixed with a shielding plate 1500, the shielding plate 1500 is transversely provided with a light-transmitting slit, and the extending direction of the light-transmitting slit can be perpendicular to the vertical direction. The fixing base 1300 is provided with a photoelectric switch 1600, the photoelectric switch 1600 can be a groove type photoelectric switch, and the shielding plate 1500 moves between two support arms of the groove type photoelectric switch. The photoelectric switch 1600 can emit light beams along the vertical direction, and the width of the light-transmitting slit can be set to just allow the light beams to pass through so as to improve the detection precision.
Because the pressing rod 1400 is connected with the fixing base 1300 in a sliding manner along the vertical direction, the pressing rod 1400 has a limited sliding stroke relative to the fixing base 1300. When the external force is not applied, the pressing rod 1400 slides downwards under the action of gravity to be located at the lowest sliding position relative to the fixing base 1300, and when the pressing rod 1400 is located at the lowest sliding position relative to the fixing base 1300, the light beam emitted by the photoelectric switch 1600 is located above the light-transmitting slit, and the shielding plate 1500 blocks the light beam of the photoelectric switch 1600, so that the photoelectric switch 1600 is not triggered.
When the lower pressing ring of the motor output shaft is not detected, the fixing base 1300 is at an initial position relative to the supporting rod 1100, and after the detection is completed each time, the vertical moving assembly 1200 drives the fixing base 1300 to return to the initial position to wait for the next detection. When the lower pressing ring of the motor output shaft is detected, the vertical moving assembly 1200 is used for driving the fixing seat 1300 to move downwards from the initial position by a preset distance, if the pressing rod 1400 abuts against the lower pressing ring and the fixing seat 1300 continues to move downwards, the pressing rod 1400 can move upwards relative to the fixing seat 1300, so that the distance between the light-transmitting slit and the photoelectric switch 1600 can be changed, because the light-transmitting slit is narrow in width, only when the lower pressing ring on the shaft is installed in place, the light beam of the photoelectric switch 1600 can pass through the light-transmitting slit to trigger the photoelectric switch 1600, and if the photoelectric switch 1600 is not triggered, the fact that the lower pressing ring on the shaft is not installed in place is judged, so that whether the lower pressing ring on the shaft is installed in place or not can be detected.
In some embodiments, as shown in fig. 5, when the fixing base is in the initial position, a distance m between the bottom end of the pressing rod 1400 and a clamping table on the shaft (i.e. the top surface of the spindle shaft 11), a thickness d of the lower pressing ring 13 to be detected, a distance n between the light beam 1610 emitted by the photoelectric switch and the light-transmitting slit 1510, and a preset distance p satisfy the following conditions: p is m-d + n.
Because the photoelectric switch is disposed on the fixing base, if the fixing base moves downward by the preset distance p, the light beam 1610 emitted by the photoelectric switch also correspondingly moves downward by the preset distance p. If the lower pressing ring 13 is installed on the shaft rod, the pressing rod 1400 will press against the lower pressing ring 13, and the pressing rod 1400 will move upward relative to the fixing base 1300, and if the lower pressing ring 13 is installed in place, when the fixing base is at the initial position, the distance s between the bottom end of the pressing rod 1400 and the lower pressing ring 13 is equal to m-d, which is exactly equal to the distance n between the light beam 1610 and the light-transmitting slit 1510, so that after the fixing base moves downward by the preset distance p, the light beam 1610 of the optoelectronic switch can pass through the light-transmitting slit to trigger the optoelectronic switch. If the lower pressing ring 13 is not mounted in place, i.e. the lower pressing ring 13 is clamped on the gear mounting rod 12, the value of the distance s between the bottom end of the actual pressing rod 1400 and the lower pressing ring 13 is smaller than the difference between m and d, and then the light beam 1610 is still shielded by the shielding plate 1500, and the photoelectric switch cannot be triggered.
It should be noted that the above conditional equation is not an absolute equation, and a person skilled in the art should naturally consider reasonable errors when applying the above conditional equation.
In some embodiments, as shown in fig. 6, when the lower pressing ring is detected, the pressing rod 1400 is disposed coaxially with the shaft, and an end surface of the bottom end of the pressing rod 1400 is provided with a slot 1410 into which the shaft can be inserted, specifically, an inner diameter of the slot 1410 should be larger than an outer diameter of the shaft.
The significance of this arrangement is that when detecting the lower pressing ring, if the lower pressing ring is not installed on the shaft rod, the shaft rod can be inserted into the slot 1410, and the pressing rod 1400 can move further to the lower side of the gear installation rod 12 along with the fixing base 1300, so that the distance from the light beam of the photoelectric switch 1600 to the light-transmitting slit cannot be reduced, or the reduced value is smaller than the distance, and thus the photoelectric switch 1600 cannot be triggered. That is, when the shaft rod is not provided with the lower pressing ring, the photoelectric switch 1600 also outputs an NG signal, which indicates that the output shaft of the motor is unqualified.
In some embodiments, a sliding rail extending vertically may be disposed on a side surface of the fixing base, a sliding block is slidably connected to the sliding rail, and the pressing rod is connected to the sliding block to achieve sliding connection between the pressing rod and the fixing base. When the sliding block is not acted by external force, the sliding block slides to the lowest end of the sliding rail.
In some embodiments, as shown in fig. 6 and 7, the fixing base 1300 is provided with a through hole along a vertical direction, and the pressing rod 1400 is arranged in the through hole in a penetrating manner and can move in the through hole along the vertical direction. The bottom end of the pressing rod 1400 extends out of the through hole, so that the pressing rod 1400 can be pressed on the lower pressing ring to be detected. The through holes include a first through hole 1310 and a second through hole 1320 that are coaxially connected, the first through hole 1310 is located above the second through hole 1320, and the aperture of the first through hole 1310 is larger than that of the second through hole 1320, which corresponds to forming a step structure at the bottom of the first through hole 1310. The middle of the pressing rod 1400 is provided with a protruding snap ring 1420, the snap ring 1420 is disposed in the first through hole 1310 and can slide along the axial direction of the first through hole 1310, the portion of the pressing rod 1400 above the snap ring 1420 is inserted into the first through hole 1310, the portion of the pressing rod 1400 below the snap ring 1420 is inserted into the second through hole 1320, and the bottom end of the pressing rod 1400 extends out of the second through hole 1320. The outer diameter of the snap ring 1420 is larger than the diameter of the second through hole 1320, and when no external force is applied, the snap ring 1420 abuts against the bottom of the first through hole 1310 and cannot fall down from the through hole, thereby achieving the sliding connection between the compression rod 1400 and the fixing base 1300.
Further, a pressing block 1330 is fixed at the top of the fixing seat 1300, a third through hole 1331 coaxially connected with the first through hole 1310 is arranged on the pressing block 1330, the aperture of the third through hole 1331 is smaller than that of the first through hole 1310, the third through hole 1331 extends out of the upper end of the pressing rod 1400, a first spring 1430 is sleeved on the pressing rod 1400, and two ends of the first spring 1430 are respectively abutted to the pressing block 1330 and the snap ring 1420. When the pressing rod 1400 moves upward relative to the fixing base 1300, the first spring 1430 is compressed to apply a downward force to the collar 1420, so that the pressing rod 1400 is pressed against the downward pressing ring of the pressing rod, and the pressing rod 1400 is prevented from jumping upward to trigger the photoelectric switch 1600 by mistake, thereby improving the detection accuracy.
In this embodiment, the pressing piece 1330 functions to provide a holding force to the first spring 1430, and thus the pressing piece 1330 can be provided in a small size. The shielding plate 1500 is fixed to the upper end of the pressing rod 1400, the shielding plate 1500 is located above the pressing block 1330, and the photoelectric switch 1600 can be fixed to the top of the fixing base 1300.
In other embodiments, the size of the pressing block 1330 can be set to be relatively larger, the optoelectronic switch 1600 is directly fixed on the pressing block 1330, the shielding plate 1500 is located above the pressing block 1330, and the shielding plate 1500 is fixedly connected to the upper end of the pressing rod 1400, so that the shielding plate 1500 can block the light beam of the optoelectronic switch 1600.
In some embodiments, as shown in fig. 4, the supporting rod 400 is provided with a limiting member 1110 for limiting the downward movement of the fixing base 1300. The limiting member 1110 may be a travel switch, the travel switch is electrically connected to the controller, the vertical moving assembly 1200 is also electrically connected to the controller, when the fixing base 1300, the pressing block 1330 or the connecting member on the pressing block 1330 touches the travel switch, the travel switch is triggered, the controller sends a control signal to the vertical moving assembly 1200, and the vertical moving assembly 1200 stops driving the fixing base 1300 to move downward. This can prevent the vertical moving assembly 1200 from driving the fixing base 1300 to move downward for an excessive distance to damage the output shaft of the motor below the pressing rod 1400 or cause damage to the lower pressing ring detection device of the output shaft of the motor. The limiting member 1110 may be directly connected to the supporting rod 1100, or may be connected to the supporting rod 1100 through the vertical moving assembly 1200.
The controller may control the action time of the vertical moving assembly 1200 according to a preset control program, so as to ensure that the fixing base 1300 moves downward by a preset distance p when the lower pressing ring is detected.
The optoelectronic switch 1600 of the above embodiment may also be connected to the controller, and the optoelectronic switch 1600 may send a detection signal to the controller to inform the controller of the detection result. The controller can be connected with the alarm, and when the photoelectric switch 1600 detects that the lower pressing ring on the shaft lever is not installed in place, the controller can send a control signal to the alarm to control the alarm to give an alarm.
In some embodiments, as shown in fig. 3 and 4, the vertical movement assembly 1200 includes an attachment plate 1210 fixed to the support rod 1100, a vertical rail 1220 disposed on the attachment plate 1210, a slider 1230 slidingly engaged with the vertical rail 1220, and a driver 1240 fixed to the attachment plate 1210 and connected to the stationary base 1300, the slider 1230 being connected to the stationary base 1300. The driver 1240 drives the fixing base 1300 to move along the vertical direction, and the sliding fit between the sliding block 1230 and the vertical guide rail 1220 provides a guiding effect for the movement of the fixing base 1300, so that the fixing base 1300 can stably move along the vertical direction. The driver 1240 may be an air cylinder, among others.
In some embodiments, the shaft rod of the output shaft of the motor may be placed on the output shaft placing seat, a placing hole may be provided on the output shaft placing seat, and the lower end of the shaft rod may be inserted into the placing hole. The output shaft is placed the seat and can be fixed on the carousel, and actuating mechanism orders about the carousel and rotates for the output shaft is placed the seat and is removed the below to the depression bar, detects with the clamping ring that supplies this embodiment to the axostylus axostyle.
As shown in fig. 3 and 4, a positioning assembly 1800 for positioning the output shaft placing seat 430 for placing the shaft is further fixed on the support rod 1100. The positioning assembly 1800 can keep the output shaft placing seat 430 at its position without shaking, so that the pressing rod 1400 can be accurately butted with the shaft rod to ensure the smooth operation of the detection process.
Further, as shown in fig. 8, the positioning assembly includes a connecting seat 1810 fixed to the support rod, a push rod 1820 disposed on the connecting seat 1810 and elastically telescopic in a direction perpendicular to the axial direction of the support rod, a positioning block 1830 connected to an end of the push rod 1820, and two guide wheels 1840 disposed on the positioning block 1830. When the output shaft placed the seat and rotated to the below of depression bar, the output shaft placed the seat and can butt guide pulley 1840 earlier to exert thrust to guide pulley 1840, make locating piece 1830 remove to connecting seat 1810, later, the output shaft placed the seat card between two guide pulleys 1840, two guide pulleys 1840 lean on the output shaft to place the seat in order to fix a position the output shaft by the side of seat.
The two guide wheels 1840 may rotate relative to the positioning block 1830, so that the output shaft placing seat may move between the two guide wheels 1840. The connecting seat 1810 can be provided with a guide hole penetrating along the axial direction of the vertical support rod, a convex ring is arranged in the guide hole, the push rod 1820 penetrates through the guide hole and penetrates through the convex ring, the push rod 1820 is sleeved with a second spring 1850, and two ends of the second spring 1850 respectively abut against the convex ring and the positioning block 1830, so that the push rod 1820 can elastically stretch and retract.
In some embodiments, as shown in fig. 9, the upper clamping ring missing detection apparatus includes a fixing rod 201, a vertical driving assembly 210 disposed on the fixing rod 201, and a detection seat 220 connected to the vertical driving assembly 210, wherein the vertical driving assembly 210 is used for driving the detection seat 220 to move in a vertical direction. The detection seat 220 is provided with two detection probes 230 separated from each other, the distance between the two detection probes 230 can be adapted to the diameter of the pressing ring, and specifically, the distance between the two detection probes 230 can be slightly smaller than the diameter of the upper pressing ring. When detecting, vertical drive assembly 210 forces to detect seat 220 and moves predetermined distance down along vertical direction, if the clamping ring is touched to the test probe 230, says that the clamping ring has been placed on the axostylus axostyle, if the clamping ring is not touched to test probe 230, says that the clamping ring has not been placed on the axostylus axostyle.
Further, the upper pressing ring missing detection device further comprises a power supply, a protection resistor and a current sensor, wherein one detection probe 230, the power supply, the protection resistor, the current sensor and the other detection probe 230 are electrically connected in sequence. If two detect probe 230 touch the clamping ring, because the clamping ring can electrically conduct, detect probe 230, power, protection resistance, current sensor and another detect probe 230 form a return circuit, and current sensor will sense the electric current, explains that the clamping ring has been placed on the axostylus axostyle from this. On the contrary, if the two detecting probes 230 do not touch the pressing ring, the detecting probe 230, the power supply, the protection resistor, the current sensor and the other detecting probe 230 do not form a loop, and the current sensor does not sense the current, thereby indicating that the pressing ring is not placed on the shaft.
In some embodiments, as shown in fig. 9, the vertical driving assembly 210 includes a detection bottom plate 211 fixed on the fixing rod 201, a vertical sliding rail disposed on the detection bottom plate 211, a sliding block 212 slidably engaged with the vertical sliding rail, and a vertical driver 213 fixed on the detection bottom plate 211 and connected to the detection base 220, wherein the detection base 220 is fixedly connected to the sliding block 212, the vertical driver 213 drives the detection base 220 to move in a vertical direction, and the sliding engagement between the sliding block 212 and the vertical sliding rail makes sliding smoother. Wherein the vertical driver 213 may be a pneumatic cylinder.
In some embodiments, as shown in fig. 10 and 11, the upper clamping ring absence detecting device further comprises a clamping assembly 240. When the motor output shaft moves below the upper pressing ring loss detection device, the clamping assembly 240 is used for clamping the motor output shaft below the detection probe, so that the motor output shaft is kept stable, and the upper pressing ring loss detection device can more accurately detect whether the upper pressing ring is placed on the motor output shaft.
Further, the clamping assembly 240 includes a clamping holder 241, a clamping driver 242 and two clamping jaws 243, wherein the clamping holder 241 is fixedly connected to the fixing rod 201, the clamping driver 242 is fixed to the clamping holder 241, the two clamping jaws 243 are connected to the clamping driver 242, and the clamping driver 242 drives the two clamping jaws 243 to approach each other to clamp the object or move away from each other to release the clamping of the object. The end of the clamping jaw 243 may be provided with a clamping groove 244, the clamping groove 244 may be an arc shape adapted to the motor output shaft, when clamping the motor output shaft, a part of the motor output shaft is located in the clamping groove 244, and the clamping jaw 243 equivalently embraces the motor output shaft, which may improve the stability of clamping.
In some embodiments, as shown in fig. 12, the pressing ring position detecting device includes a support plate 310, and the support plate 310 may be disposed in a vertical direction. Be fixed with mounting bracket 320 on backup pad 310, be fixed with laser range finder 330 on mounting bracket 320, laser range finder 330 is used for emitting the pencil downwards in order to detect its distance to the last clamping ring on the motor output shaft, and is specific, laser range finder 330 can be followed vertical direction and emitted the pencil downwards to promote the accuracy that detects.
In order to prevent the detection from being interfered, a dedicated output shaft placing seat 430 may be disposed below the laser range finder 330, and the output shaft of the motor to be detected is placed on the output shaft placing seat. Since the position of the laser range finder 330 is fixed, the distance from the output shaft of the motor to the laser range finder 330 is also fixed during detection, and therefore, if the upper pressing ring is installed in place, the distance from the upper pressing ring to the laser range finder 330 is also relatively fixed. A set distance may be set in advance as the distance from the pressing ring installed in place to the laser range finder 330.
In one embodiment, the laser range finder has a distance judgment function and is provided with an indicator light, namely after the laser range finder measures the distance from the upper pressing ring to the laser range finder, whether the distance is equal to the set distance or not is automatically judged, if the distance is equal to the set distance, the detection is passed, if the distance is not equal to the set distance, the detection is not passed, and the indicator light lights in different colors according to the detection result. In another embodiment, the laser range finder detects only the distance and is connected to the controller to send the detected distance to the controller, and the controller determines whether the distance is equal to the set distance to determine whether the motor output shaft is qualified. The controller is also connected with the alarm, and when the output shaft of the motor is unqualified, the controller can control the alarm to give an alarm.
In some embodiments, as shown in fig. 12 and 13, the mounting bracket 320 includes an adjusting bracket 321 and a detection fixing plate 322, the adjusting bracket 321 is slidably connected with the support plate 310 in a transverse direction, the detection fixing plate 322 is slidably connected with the adjusting bracket 321 in a longitudinal direction, and the laser range finder 330 is fixed on the detection fixing plate 322. Therefore, the laser range finder 330 can move in the lateral and longitudinal directions with respect to the support plate 310, which can adjust the position of the beam of the laser range finder 330 on the lateral plane, so that the beam of the laser range finder 330 can accurately irradiate the pressing ring.
Further, a first bolt and a second bolt (not shown) are disposed on the mounting bracket 321, the mounting bracket 321 is provided with a first sliding groove 325 extending along the transverse direction and penetrating through the mounting bracket 321 and a second sliding groove 326 extending along the longitudinal direction and penetrating through the mounting bracket 321, a first threaded hole is disposed on the supporting plate 310, and a second threaded hole is disposed on the detection fixing plate 322.
The first bolt passes through the first sliding groove 325 and is in threaded connection with the first threaded hole, and the first bolt can slide in the first sliding groove 325, so that the mounting bracket 321 is in sliding connection with the support plate 310. After the mounting bracket 321 is moved to a designated position with respect to the support plate 310, the first bolt may be tightened to fasten the mounting bracket 321 to the support plate 310 to maintain it at the designated position.
The second bolt passes through the second sliding groove 326 and is in threaded connection with the second threaded hole, and the second bolt can slide in the second sliding groove 326, so that the sliding connection between the detection fixing plate 322 and the mounting bracket 321 is realized. After the detection fixing plate 322 moves to a designated position with respect to the mounting bracket 321, the second bolt may be tightened to fasten the detection fixing plate 322 to the mounting bracket 321 to be maintained at the designated position.
Further, the mounting bracket 321 includes a first adjusting plate 323 extending in a lateral direction and a second adjusting plate 324 extending in a longitudinal direction, the first adjusting plate 323 and the second adjusting plate 324 are coupled, a first sliding groove 325 is provided on the first adjusting plate 323, and a second sliding groove 326 is provided on the second adjusting plate 324. The mounting bracket 321 of such a structure may facilitate the arrangement of the sliding grooves without the first sliding groove 325 and the second sliding groove 326 interfering with each other.
In one embodiment, as shown in fig. 2, the pressing ring detection system for the output shaft of the motor further includes a conveying device 400, and the conveying device 400 is used for conveying the shaft rod with the lower pressing ring installed to the lower part of the lower pressing ring detection device 100, so that the lower pressing ring detection device 100 can detect the shaft rod. After the gear and the upper clamping ring are installed on the shaft rod detected as a qualified product by the lower clamping ring detection device 100, the shaft rod is further conveyed to the lower part of the upper clamping ring missing detection device 200 by the conveying device 400 so that the shaft rod can be detected by the upper clamping ring missing detection device 200. The conveying device 400 is further configured to convey the shaft rod detected as a qualified product by the upper pressing ring missing detection device 200 to the lower side of the pressing ring position detection device 300, so that the pressing ring position detection device 300 can detect the shaft rod.
Further, the conveying device 400 includes a turntable 410 and a turntable driver 420 connected to the turntable 410 and configured to drive the turntable 410 to rotate, wherein a plurality of output shaft placing seats 430 for placing output shafts of the motors are fixed on the turntable 410, and the output shafts of the motors are used for placing output shafts of the motors. The turntable driver 420 drives the turntable 410 to rotate so as to move the motor output shaft on the output shaft placing base 430 to the lower side of the lower pressing ring detection device 100, the lower side of the upper pressing ring missing detection device 200 and the lower side of the pressing ring position detection device 300 in sequence.
The foregoing is a more detailed description of the present invention with reference to specific embodiments thereof, and it is not intended to limit the invention to the specific embodiments thereof. It will be apparent to those skilled in the art that a number of simple derivations or substitutions can be made without departing from the inventive concept.
Claims (8)
1. The utility model provides a clamping ring detecting system of motor output shaft which characterized in that: the device comprises a lower pressing ring detection device, an upper pressing ring missing detection device and a pressing ring position detection device; the lower pressing ring detection device is used for detecting whether the lower pressing ring on the shaft lever provided with the lower pressing ring is installed in place or not; the upper pressing ring missing detection device is used for detecting whether the upper pressing ring on the shaft lever is missing or not after the gear and the upper pressing ring are arranged on the shaft lever detected as a qualified product by the lower pressing ring detection device; the pressing ring position detection device is used for detecting the distance from the upper pressing ring on the shaft lever detected as a qualified product by the upper pressing ring loss detection device to the upper pressing ring and judging whether the detected distance is equal to a set distance or not;
the lower pressing ring detection device comprises a supporting rod, wherein a vertical moving assembly and a fixed seat connected with the vertical moving assembly are arranged on the supporting rod, and the vertical moving assembly is used for driving the fixed seat to move along the vertical direction; the fixed seat is connected with a pressure lever in a sliding manner along the vertical direction, and the bottom end of the pressure lever is used for pressing and covering a lower pressure ring to be detected; a shielding plate is fixed on the pressure rod, a light-transmitting slit is transversely arranged on the shielding plate, and a photoelectric switch is arranged on the fixed seat; when the photoelectric switch is not under the action of external force, the pressure rod is positioned at the lowest sliding position relative to the fixed seat, the light beam emitted by the photoelectric switch is positioned above the light transmitting slit, and the shielding plate blocks the light beam of the photoelectric switch; the vertical moving assembly is used for driving the fixed seat to move downwards from an initial position by a preset distance, and when and only when the lower pressing ring on the shaft lever is installed in place, a light beam of the photoelectric switch penetrates through the light-transmitting slit to trigger the photoelectric switch;
when the fixing seat is located at the initial position, the distance m between the bottom end of the pressure lever and the clamping table on the shaft lever, the thickness d of the lower pressing ring to be detected, the distance n between a light beam emitted by the photoelectric switch and the light-transmitting slit and the preset distance p meet the following conditions: p is m-d + n; after the vertical moving assembly drives the fixing seat to move downwards from the initial position by a preset distance p, if the photoelectric switch is triggered, the lower pressing ring on the shaft rod is determined to be installed in place.
2. The system of claim 1, wherein the clamping ring of the output shaft of the motor comprises: when the lower pressing ring is detected, the pressing rod and the shaft rod are coaxially arranged, and an inserting groove for inserting the shaft rod is formed in the end face of the bottom end of the pressing rod.
3. The ring clamping detection system for the output shaft of the motor according to claim 1, wherein: the upper clamping ring loss detection device comprises a fixed rod, a vertical driving assembly arranged on the fixed rod and a detection seat connected with the vertical driving assembly, wherein the vertical driving assembly is used for driving the detection seat to move along the vertical direction; the detection seat is provided with two detection probes separated from each other, and the distance between the two detection probes is matched with the diameter of the upper pressing ring.
4. The ring clamping detection system for the output shaft of the motor according to claim 3, wherein: the upper clamping ring missing detection device further comprises a power supply, a protection resistor and a current sensor, wherein one detection probe, the power supply, the protection resistor, the current sensor and the other detection probe are electrically connected in sequence.
5. The ring clamping detection system for the output shaft of the motor according to claim 1, wherein: the pressing ring position detection device comprises a supporting plate, wherein a mounting support is fixed on the supporting plate, a laser range finder is fixed on the mounting support and used for emitting a light beam downwards to detect the distance from the laser range finder to an upper pressing ring on the shaft rod.
6. The ring clamping detection system for the output shaft of the motor according to claim 5, wherein: the installing support is including adjusting the support and detecting the fixed plate, adjust support and backup pad along lateral sliding connection, detect the fixed plate and adjust the support along longitudinal sliding connection, the laser range finder is fixed on detecting the fixed plate.
7. The ring clamping detection system for the output shaft of the motor according to claim 6, wherein: the mounting bracket is provided with a first bolt and a second bolt, the mounting bracket is provided with a first sliding groove which extends along the transverse direction and runs through the mounting bracket and a second sliding groove which extends along the longitudinal direction and runs through the mounting bracket, a first threaded hole is formed in the supporting plate, a second threaded hole is formed in the detection fixing plate, the first bolt penetrates through the first sliding groove and is in threaded connection with the first threaded hole, and the second bolt penetrates through the second sliding groove and is in threaded connection with the second threaded hole.
8. The detecting system for the pressing ring of the output shaft of the motor according to any one of claims 1 to 7, wherein: the pressing ring detection system of the motor output shaft further comprises a conveying device, wherein the conveying device is used for conveying the shaft lever provided with the lower pressing ring to the position below the lower pressing ring detection device, conveying the shaft lever to the position below the upper pressing ring missing detection device after the shaft lever detected as a qualified product by the lower pressing ring detection device is provided with the gear and the upper pressing ring, and conveying the shaft lever detected as a qualified product by the upper pressing ring missing detection device to the position below the pressing ring position detection device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210062210.8A CN114415253B (en) | 2022-01-19 | 2022-01-19 | Pressing ring detection system of motor output shaft |
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| CN202210062210.8A CN114415253B (en) | 2022-01-19 | 2022-01-19 | Pressing ring detection system of motor output shaft |
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| CN114415253B true CN114415253B (en) | 2022-09-30 |
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| TWI432374B (en) * | 2012-04-20 | 2014-04-01 | Primax Electronics Ltd | Sheet thickness estimating device |
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| CN102073068A (en) * | 2010-12-16 | 2011-05-25 | 焦作瑞赛尔盘式制动器有限公司 | Device for detecting assembly of sealing rings |
| CN107339934A (en) * | 2017-05-25 | 2017-11-10 | 上汽通用五菱汽车股份有限公司 | Retaining ring for piston pin press-mounting detecting device |
| CN108768110A (en) * | 2018-07-09 | 2018-11-06 | 广东英达思迅智能制造有限公司 | A kind of assembly method of machine shaft and the assembly machine for implementing this method |
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| CN114415253A (en) | 2022-04-29 |
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