CN218330364U

CN218330364U - Force measuring device and detection system

Info

Publication number: CN218330364U
Application number: CN202121963609.0U
Authority: CN
Inventors: 李伟
Original assignee: Shenzhen Gimech Technology Corp
Current assignee: Shenzhen Gimech Technology Corp
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2023-01-17
Anticipated expiration: 2031-08-19

Abstract

The utility model belongs to the technical equipment field of the motor detects, especially, relate to measuring force device and detecting system. The force measuring device comprises: the fixing structure comprises a fixing plate for arranging a target object and a material ejecting mechanism which is positioned below the fixing plate and is configured to drive the fixing plate to move up and down; the force measuring structure comprises a force measuring frame fixedly arranged, a force applying mechanism connected with the force measuring frame, an inner diameter testing base positioned above the opening and a pressure sensor arranged on an output shaft of the force applying mechanism, wherein the pressure sensor is connected with the inner diameter testing base and the force applying mechanism, and the shape of the inner diameter testing base is matched with that of the inner cavity; the ejection mechanism drives the fixing plate to ascend to a preset position, the force application mechanism presses the inner diameter test substrate downwards towards the inner cavity through the pressure sensor, and the pressure sensor detects the output force of the force application mechanism. The utility model discloses whether the assembly that can the snap judgments magnetic shoe and rotor is qualified, the process is simple and efficient.

Description

Force measuring device and detection system

Technical Field

The utility model belongs to the technical equipment field of the motor detects, especially, relate to measuring force device and detecting system.

Background

At present, the connection of the rotor and the magnetic shoe is generally to sequentially attach a plurality of magnetic shoes on the cavity wall of the inner cavity of the rotor. The magnet shoes need detect the internal diameter of rotor after establishing the inner chamber to the rotor in the subsides to detect the whole laminating condition of each magnet shoe. That is, the rotor inner diameter needs to be within a predetermined range, and the rotor inner diameter generally varies within a tolerance range.

However, at present, the detection is generally performed by manually operating a detection instrument, the detection efficiency is low, and defective products are easily judged to be qualified products.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of this application is to provide a measuring force device, aim at solving the problem how to carry out effective detection to the assembly of rotor and magnetic shoe fast.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: providing a force measuring device configured to detect a target, wherein the target has an interior cavity with an opening and the opening is disposed upwardly, the force measuring device comprising:

the fixing structure comprises a fixing plate for arranging the target object and a material ejecting mechanism which is positioned below the fixing plate and is configured to drive the fixing plate to move up and down; and

the force measuring structure comprises a force measuring frame, a force applying mechanism, an inner diameter testing base and a pressure sensor, wherein the force measuring frame is fixedly arranged, the force applying mechanism is connected with the force measuring frame, the inner diameter testing base is positioned above the opening, the pressure sensor is arranged on an output shaft of the force applying mechanism, the pressure sensor is connected with the inner diameter testing base and the force applying mechanism, and the shape of the inner diameter testing base is matched with that of the inner cavity;

the material ejecting mechanism drives the fixing plate to ascend to a preset position, the force application mechanism drives the pressure sensor to press the inner diameter test substrate downwards towards the inner cavity, and the pressure sensor detects the output force of the force application mechanism.

In one embodiment, the force measuring device further comprises a first guiding mechanism for guiding the movement of the inner diameter test substrate.

In one embodiment, the first guide mechanism comprises a guide plate connected with the pressure sensor, a first guide sleeve connected with the force measuring frame, and a first guide column, wherein one end of the first guide column is connected with the guide plate, the other end of the first guide column is in sliding fit with the first guide sleeve, the first guide column is provided with a plurality of guide columns, the number of the first guide sleeves is matched with that of the first guide columns, and the guide columns are arranged in a one-to-one correspondence manner.

In one embodiment, the force measuring device further comprises a reset structure, the reset structure comprises a reset ring and a reset piece, one end of the reset ring is connected with the reset ring, the other end of the reset ring is connected with the guide plate, the reset ring is provided with a force measuring hole for accommodating the inner diameter test substrate part, the reset piece is provided with elastic restoring force and is provided with a plurality of reset pieces, the reset pieces are arranged at intervals in the circumferential direction of the reset ring, the annular surface of the reset ring, which is arranged downwards, abuts against the edge of the opening, and the inner diameter of the force measuring hole is larger than the inner diameter of the inner cavity.

In one embodiment, the reset structure further includes a second guide mechanism guiding the reset member to be elastically deformed.

In one embodiment, the second guiding mechanism includes a second guiding sleeve connected to the guiding plate and a second guiding post having one end connected to the reset ring and the other end slidably engaged with the second guiding sleeve, the reset member is a tube spring, and the second guiding post is sleeved by the tube spring.

In one embodiment, the material ejecting mechanism comprises an ejector plate positioned below the fixed plate, an ejector driver for driving the ejector plate to move up and down, and an ejector frame configured to fix the ejector driver.

In one embodiment, the fixing structure further comprises a third guide mechanism for guiding the ejector plate to move up and down, the third guide mechanism comprises a third guide sleeve connected with the ejector frame and a third guide column with one end connected with the ejector plate and the other end in sliding fit with the third guide sleeve, and a plurality of the third guide mechanisms are arranged at intervals.

In one embodiment, a convex portion is convexly arranged on the upward plate surface of the ejector plate, a groove is formed on the downward plate surface of the fixing plate, and the convex portion is matched with the groove.

Another purpose of this application still lies in providing a detecting system, and it includes as above force measuring device, detecting system still includes the pay-off structure, the pay-off structure include the pay-off frame and set up in pay-off guide rail on the pay-off frame, the pay-off guide rail is provided with two, two pay-off guide rail interval sets up, the both ends of fixed plate set up respectively in two the pay-off guide rail, and liftout mechanism is located in the pay-off frame, the force measuring structure with fixed knot constructs to follow pay-off guide rail interval is provided with a plurality ofly.

The beneficial effect of this application lies in: the fixed plate is driven to ascend to a preset position by the material ejecting mechanism, the force application mechanism presses the inner diameter test substrate downwards towards the inner cavity through the pressure sensor, the output force of the force application mechanism is related to the inner diameter of the inner cavity, and when the inner diameter of the inner cavity is smaller, the force application mechanism can press the test plate into the inner cavity only by large output force; when the inner diameter of the inner cavity is too large, the force application mechanism only needs small output force to press the detection disc into the inner cavity, so that the actual output force is compared with the preset output force according to the actual output force of the force application mechanism detected by the pressure sensor, whether the assembly of the magnetic shoe and the rotor is qualified or not is judged, and the process is simple and high in efficiency.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or exemplary technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

Fig. 1 is a schematic perspective view of a detection system according to an embodiment of the present disclosure;

FIG. 2 is a perspective view of the force-measuring structure of FIG. 1;

fig. 3 is a partial enlarged view at a of fig. 2;

fig. 4 is a schematic perspective view of the ejector mechanism of fig. 1.

Wherein, in the figures, the respective reference numerals:

100. a detection system; 10. a fixed structure; 11. a fixing plate; 12. a material ejecting mechanism; 200. a target object; 201. a rotor housing; 202. a magnetic shoe; 203. an inner cavity; 40. a feeding structure; 41. a feeding frame; 42. a feeding guide rail; 20. a force measuring structure; 21. a force application mechanism; 22. a force measuring frame; 23. a pressure sensor; 24. an inner diameter test base; 25. a first guide mechanism; 251. a first guide post; 252. a first guide sleeve; 253. a guide plate; 50. a reset structure; 51. a reset ring; 52. a reset member; 53. a second guide mechanism; 531. a second guide sleeve; 532. a second guide post; 121. a material pushing frame; 122. a material ejecting driver; 123. a material ejecting plate; 124. a convex portion; 127. a third guide mechanism; 125. a third guide post; 126. a third guide sleeve;

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application, and the specific meaning of the terms will be understood by those skilled in the art according to the particular situation. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.

Referring to fig. 1 and 3, a force measuring device configured to detect a target 200 is provided, wherein the target 200 has an inner cavity 203, and the inner cavity 203 has an opening and the opening is disposed upward. Optionally, in this embodiment, the target 200 includes a rotor housing 201 having an inner cavity 203 and a magnetic shoe 202 attached to a wall of the inner cavity 203. The magnetic shoe 202 is provided in plurality, and each magnetic shoe 202 is arranged at intervals around the circumference of the inner cavity 203. Wherein the cross-sectional shape of the cavity 203 is circular. The force measuring device comprises a fixing structure 10 and a force measuring structure 20. The fixing structure 10 includes a fixing plate 11 on which the object 200 is placed, and an ejector mechanism 12 located below the fixing plate 11 and configured to drive the fixing plate 11 to move up and down. Optionally, the material ejecting mechanism 12 drives the fixed plate 11 to move upward to a predetermined position for the force measuring structure 20 to perform force measurement detection on the target object 200, after the detection is completed, the material ejecting mechanism 12 resets the fixed plate 11 to the initial position again, and the target object 200 is replaced, so that the process is repeated. The force measuring structure 20 comprises a force measuring frame 22 fixedly arranged, a force application mechanism 21 connected with the force measuring frame 22, an inner diameter testing base 24 positioned above the opening, and a pressure sensor 23 arranged on an output shaft of the force application mechanism 21, wherein the pressure sensor 23 is connected with the inner diameter testing base 24 and the force application mechanism 21, and the shape of the inner diameter testing base 24 is matched with that of the inner cavity 203. Optionally, the inner diameter test substrate 24 in this embodiment is in the shape of a disk. The ejector mechanism 12 drives the fixing plate 11 to rise to a predetermined position, the forcing mechanism 21 drives the pressure sensor 23 to press the inner diameter test substrate 24 down toward the inner cavity 203, and the pressure sensor 23 detects the output force of the forcing mechanism 21.

Referring to fig. 1 and 3, the ejection mechanism 12 drives the fixing plate 11 to ascend to a predetermined position, the force application mechanism 21 presses the inner diameter test substrate 24 down toward the inner cavity 203 through the pressure sensor 23, the magnitude of the output force of the force application mechanism 21 is related to the magnitude of the inner diameter of the inner cavity 203, and when the inner diameter of the inner cavity 203 is smaller, the force application mechanism 21 needs a larger output force to press the test tray into the inner cavity 203; when the inner diameter of the inner cavity 203 is too large, the force application mechanism 21 can press the detection disc into the inner cavity 203 only by a small output force, so that the actual output force is compared with the preset output force according to the actual output force of the force application mechanism 21 detected by the pressure sensor 23, and whether the assembly of the magnetic shoe 202 and the rotor shell 201 is qualified or not is judged, and the process is simple and high in efficiency.

Alternatively, the forcing mechanism 21 is a servo electric cylinder, a piston rod of the servo electric cylinder is connected with the pressure sensor 23, and the inner diameter test substrate 24 is driven to move downwards by the servo electric cylinder.

Referring to fig. 1 and 3, in one embodiment, the force measuring device further includes a first guiding mechanism 25 for guiding the movement of the inner diameter test substrate 24. The inner diameter test base 24 can be stabilized into the inner cavity 203 by the first guide mechanism 25, thereby improving the accuracy of the measurement of the pressure sensor 23.

Referring to fig. 1 and 3, in an embodiment, the first guiding mechanism 25 includes a guiding plate 253 connected to the pressure sensor 23, a first guiding sleeve 252 connected to the force-measuring frame 22, and a plurality of first guiding posts 251 having one end connected to the guiding plate 253 and the other end slidably engaged with the first guiding sleeve 252, where the number of the first guiding posts 251 is adapted to the number of the first guiding posts 251, and the first guiding sleeves 252 are arranged in a one-to-one correspondence manner. Alternatively, the guide plate 253 is guided to move up and down smoothly by the cooperation of the first guide post 251 and the first guide sleeve 252, thereby moving the inner diameter test substrate 24 smoothly.

Alternatively, the output shaft of the biasing mechanism 21 is connected to the guide plate 253, and transmits the pressure to the pressure sensor 23 through the guide plate 253.

Referring to fig. 1 and 3, in an embodiment, the force measuring device further includes a reset structure 50, the reset structure 50 includes a reset ring 51 disposed opposite to the guide plate 253 and located below the guide plate 253, and a reset member 52 having one end connected to the reset ring 51 and the other end connected to the guide plate 253, the reset ring 51 has a force measuring hole for partially accommodating the inner diameter test substrate 24, the reset member 52 has an elastic restoring force and is provided with a plurality of reset members 52, each reset member 52 is disposed at intervals around the circumference of the reset ring 51, a downward ring surface of the reset ring 51 abuts against an edge of the opening, and an inner diameter of the force measuring hole is larger than an inner diameter of the cavity 203. Alternatively, in the force measurement starting stage, the annular surface of the reset ring 51 disposed downward abuts against the edge of the opening, and the force application mechanism 21 drives the inner diameter test base 24 to move toward the inner cavity 203 while the guide plate 253 compresses the reset piece 52. After the force measurement is completed, the reset member 52 is reset, thereby driving the inside diameter test base 24 out of the cavity 203.

Referring to fig. 1 and 3, in one embodiment, the restoring structure 50 further includes a second guiding mechanism 53 guiding the restoring element 52 to be elastically deformed. The restoring member 52 can be guided to be smoothly deformed by the second guide mechanism 53.

In one embodiment, the second guiding mechanism 53 includes a second guiding sleeve 531 connected to the guiding plate 253 and a second guiding post 532 having one end connected to the reset ring 51 and the other end slidably engaged with the second guiding sleeve 531, and the reset member 52 is a tube spring which is sleeved on the second guiding post 532. Optionally, the deformation process of the reset element 52 is stabilized by the cooperation of the second guide post 532 and the second guide sleeve 531, so as to improve the smoothness of the movement of the inner diameter test substrate 24.

Referring to fig. 1 and 3, in one embodiment, the ejector mechanism 12 includes an ejector plate 123 located below the fixed plate 11, an ejector driver 122 for driving the ejector plate 123 to move up and down, and an ejector rack 121 configured to fix the ejector driver 122. Alternatively, the ejector driver 122 is a cylinder, and a piston rod of the cylinder is connected to the ejector plate 123, so as to drive the ejector plate 123 to reciprocate up and down. Optionally, the ejector driver 122 drives the ejector plate 123 to a predetermined position for the force measuring structure 20 to detect the size of the cavity 203. After the detection is completed, the ejector driver 122 drives the ejector plate 123 to reset to the initial position.

Referring to fig. 4, in an embodiment, the fixing structure 10 further includes a third guiding mechanism 127 for guiding the ejector plate 123 to move up and down, the third guiding mechanism 127 includes a third guiding sleeve 126 connected to the ejector frame 121 and a third guiding column 125 having one end connected to the ejector plate 123 and the other end slidably engaged with the third guiding sleeve 126, and the third guiding mechanism 127 is provided in plurality at intervals. Alternatively, the ejector plate 123 is guided to move smoothly by the sliding fit of the third guide posts 125 and the third guide sleeves 126.

Referring to fig. 4, in an embodiment, the plate surface of the ejector plate 123 facing upward is provided with a convex portion 124, the plate surface of the fixed plate 11 facing downward is provided with a concave groove, and the convex portion 124 is adapted to the concave groove. After the ejector plate 123 and the fixed plate 11 are abutted, the protrusion 124 is located in the groove, thereby improving the reliability of the connection of the ejector plate 123 and the fixed plate 11.

The utility model also provides a detecting system 100, this detecting system 100 includes force measuring device, and above-mentioned embodiment is referred to this force measuring device's concrete structure, because this detecting system 100 has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought equally, and the repeated description is no longer given here.

Referring to fig. 1, in an embodiment, the detecting system 100 further includes a feeding structure 40, the feeding structure 40 includes two feeding racks 41 and two feeding rails 42 disposed on the feeding racks 41, the two feeding rails 42 are disposed at intervals, two ends of the fixing plate 11 are disposed on the two feeding rails 42, respectively, and the material ejecting mechanism 12 is located in the feeding racks 41.

Optionally, a plurality of force measuring structures 20 and a plurality of fixing structures 10 are arranged at intervals along the feeding guide rail 42, so that a plurality of targets 200 can be measured at the same time, and the detection efficiency is improved.

The above are merely alternative embodiments of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A force measuring device configured to detect a target object, wherein the target object has an inner cavity with an opening and the opening is disposed upward, the force measuring device comprising:

the force measuring structure comprises a force measuring frame fixedly arranged, a force applying mechanism connected with the force measuring frame, an inner diameter testing base positioned above the opening and a pressure sensor arranged on an output shaft of the force applying mechanism, wherein the pressure sensor is connected with the inner diameter testing base and the force applying mechanism, and the shape of the inner diameter testing base is matched with that of the inner cavity;

the ejection mechanism drives the fixing plate to ascend to a preset position, the force application mechanism drives the pressure sensor to press the inner diameter test substrate downwards towards the inner cavity, and the pressure sensor detects the output force of the force application mechanism.

2. The force measuring device of claim 1, wherein: the force measuring device further comprises a first guide mechanism for guiding the movement of the inner diameter test substrate.

3. The force measuring device of claim 2, wherein: first guiding mechanism is including connecting pressure sensor's deflector, connection the first uide bushing and the one end of dynamometry frame are connected the deflector and the other end with the first uide bushing sliding fit's first guide post, first guide post is provided with a plurality ofly, the quantity of first uide bushing with the quantity adaptation of first guide post, and the one-to-one setting.

4. Force measuring device according to claim 3, wherein: the force measuring device further comprises a reset structure, the reset structure comprises a guide plate, the guide plate is arranged and located, a reset ring and one end of the lower portion of the guide plate are connected with the reset ring, the other end of the lower portion of the guide plate is connected with a reset piece of the guide plate, the reset ring is provided with a force measuring hole for accommodating the inner diameter test substrate part, the reset piece is provided with elastic restoring force and a plurality of reset pieces, each reset piece surrounds the reset ring in circumferential interval, the annular face of the reset ring, which is arranged downwards, abuts against the edge of the opening, and the inner diameter of the force measuring hole is larger than the inner diameter of the inner cavity.

5. The force measuring device of claim 4, wherein: the reset structure further comprises a second guide mechanism for guiding the reset piece to elastically deform.

6. The force measuring device of claim 5, wherein: the second guide mechanism comprises a second guide sleeve connected with the guide plate and a second guide column, one end of the second guide column is connected with the reset ring, the other end of the second guide column is in sliding fit with the second guide sleeve, the reset piece is a pipe spring, and the second guide column is sleeved outside the pipe spring.

7. Force measuring device according to any of claims 1-6, wherein: the ejection mechanism comprises an ejection plate positioned below the fixed plate, an ejection driver for driving the ejection plate to move up and down and an ejection rack configured to fix the ejection driver.

8. The force measuring device of claim 7, wherein: the fixing structure further comprises a third guide mechanism used for guiding the ejector plate to move up and down, the third guide mechanism comprises a third guide sleeve connected with the ejector frame and a third guide column, one end of the third guide column is connected with the ejector plate, the other end of the third guide column is in sliding fit with the third guide sleeve, and the third guide mechanisms are arranged at intervals.

9. The force measuring device of claim 7, wherein: the protruding convex part that is equipped with of flitch face that sets up, the face that the fixed plate set up down is seted up flutedly, the convex part with the recess adaptation.

10. The detection system is characterized by comprising the force measuring device according to any one of claims 1 to 9, and further comprising a feeding structure, wherein the feeding structure comprises a feeding rack and two feeding guide rails arranged on the feeding rack, the two feeding guide rails are arranged at intervals, two ends of the fixing plate are respectively arranged on the two feeding guide rails, the material ejecting mechanism is positioned in the feeding rack, and the force measuring structure and the fixing structure are arranged at intervals along the feeding guide rails.