CN114279701A - Device for detecting fluency of ball screw pair - Google Patents
Device for detecting fluency of ball screw pair Download PDFInfo
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- CN114279701A CN114279701A CN202111678562.8A CN202111678562A CN114279701A CN 114279701 A CN114279701 A CN 114279701A CN 202111678562 A CN202111678562 A CN 202111678562A CN 114279701 A CN114279701 A CN 114279701A
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- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 238000001514 detection method Methods 0.000 claims abstract description 23
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010835 comparative analysis Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
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Abstract
The invention belongs to the technical field of production of transmission machinery, and particularly relates to a device for detecting fluency of a ball screw pair. The screw rod body is fixedly clamped by adopting the central hole through the arrangement of the sliding rail, the front supporting block, the rear supporting block and the clamping mechanism, the deviation of the screw rod body is avoided, the detection reliability is ensured, the screw rod body is rotated by driving the nut seat to move through the arrangement of the connecting plate, the nut seat and the detection mechanism, the screw rod body is driven by adopting a reverse transmission mode, the change condition of the driving force in the full stroke is more simply and conveniently detected by matching the detection mechanism, and the error is reduced by adopting two sets of collected data and carrying out comparative analysis, so that the result is more real and effective.
Description
Technical Field
The invention relates to the technical field of transmission machinery production, in particular to a device for detecting fluency of a ball screw pair.
Background
In recent years, along with the continuous promotion of the home and abroad automation level, the market is more and more big to the demand of ball screw pair, and the requirement is also more and more high, and meanwhile, to the comprehensive properties requirement of lead screw stricter, the smoothness is one of them very important index, and ball screw pair operation smoothness means: in the effective stroke, the difference value between the maximum value and the minimum value of the driving force of any lead is larger, the smoothness is poorer, the difference value tends to zero, the smoothness is better, and the smoothness of the ball screw directly influences the precision, the noise, the temperature rise, the service life and the like of the ball screw.
The existing fluency detection device for the ball screw can only sense whether clamping stagnation exists or not by rotating a nut by hands of personnel, sense whether mutation exists in local pretightening force of assembly or not, and judge whether the assembly is qualified or not in a data quantification mode, and the mode only depends on personal sense and cannot reasonably and accurately judge whether the assembly is qualified or not, so that the problem is solved by providing the device for detecting the fluency of the ball screw pair.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a device for detecting fluency of a ball screw pair, which solves the problem that fluency is not accurate when a person automatically judges the fluency in transmission.
(II) technical scheme
The invention specifically adopts the following technical scheme for realizing the purpose:
the utility model provides an vice fluency detection device of ball, is including examining test table, the top of examining test table is fixed with slide rail and preceding supporting block respectively, preceding supporting block contacts with the one end of slide rail, sliding connection has back supporting block and retaining member respectively on the slide rail, a lateral wall of back supporting block is fixed with tensile pole, the retaining member cover is established at the other end of tensile pole, the clamping has the lead screw body between being provided with clamping mechanism and two clamping mechanisms relatively in preceding supporting block and the back supporting block, be provided with the locking mechanism who is used for fastening on the slide rail on the retaining member, the top sliding connection of slide rail has the connecting plate, be provided with the detection mechanism that is used for carrying out the detection to the nut seat on the lead screw body on the connecting plate, the one end and the drive unit fixed connection of setting on examining test table of connecting plate.
Further, the clamping mechanism comprises inner cavities respectively formed in the front supporting block and the rear supporting block, rotary ejector pins are fixed in the inner cavities through bearings, the surfaces of the rotary ejector pins are connected with stretching nuts through threads, expansion sleeves are fixed at one ends of the stretching nuts, first locking nuts are connected at one ends of the expansion sleeves through threads, and second locking nuts are connected at one ends of the rotary ejector pins through threads.
Further, locking mechanism includes through screw thread symmetric connection at the positive two locking screw of retaining member, two locking screw's surface cover is equipped with the briquetting, two locking screw's tip and slide rail in close contact with, a lateral wall of retaining member rotates through the bearing and is connected with stretching screw, stretching screw's one end threaded connection is in stretching the pole.
Further, the detection mechanism comprises a mounting piece fixed to the top of the connecting plate, the bottom of the nut seat is detachably mounted in the mounting piece through a cylindrical pin, and two tension and pressure sensors are symmetrically fixed to the surface of the mounting piece.
(III) advantageous effects
Compared with the prior art, the invention provides a device for detecting fluency of a ball screw pair, which has the following beneficial effects:
according to the invention, through arranging the sliding rail, the front supporting block, the rear supporting block and the clamping mechanism, the screw rod body is fixedly clamped by adopting a central hole, so that the deviation of the screw rod body is avoided, and the detection reliability is ensured.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of the structure at the position A of the present invention;
FIG. 3 is a front sectional view of the front support block of the present invention;
FIG. 4 is a schematic view of the locking mechanism of the present invention;
fig. 5 is a side view of the mounting member of the present invention.
In the figure: 1. a detection table; 2. a slide rail; 3. a front support block; 4. a rear support block; 5. a locking member; 6. a stretch rod; 7. a clamping mechanism; 701. an inner cavity; 702. rotating the thimble; 703. stretching the nut; 704. expanding the sleeve; 705. a first lock nut; 706. a second lock nut; 8. a lead screw body; 9. a locking mechanism; 901. locking the screw; 902. briquetting; 903. stretching the screw; 10. a connecting plate; 11. a nut seat; 12. a detection mechanism; 1201. a mounting member; 1202. a cylindrical pin; 1203. and pulling the pressure sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
As shown in figure 1 of the drawings, in which, as shown in fig. 2 and 4, a device for detecting fluency of a ball screw pair according to an embodiment of the present invention includes a detection table 1, a slide rail 2 and a front support block 3 are respectively fixed on the top of the detection table 1, the front support block 3 contacts with one end of the slide rail 2, the slide rail 2 is respectively connected with a rear support block 4 and a locking member 5 in a sliding manner, a stretching rod 6 is fixed on one side wall of the rear support block 4, the locking member 5 is sleeved on the other end of the stretching rod 6, clamping mechanisms 7 are oppositely arranged in the front support block 3 and the rear support block 4, a screw body 8 is clamped between the two clamping mechanisms 7, a locking mechanism 9 for fastening on the slide rail 2 is arranged on the locking member 5, a connection plate 10 is connected above the slide rail 2 in a sliding manner, a detection mechanism 12 for detecting a nut seat 11 on the screw body 8 is arranged on the connection plate 10, and one end of the connection plate 10 is fixedly connected with a driving unit arranged on the detection table 1; to sum up, during detection, firstly, the clamping mechanism 7 on the front supporting block 3 is operated, after one end of the tested lead screw body 8 is clamped, the rear supporting block 4 is moved to a proper position, the clamping mechanism 7 on the rear supporting block 4 is operated to clamp the other end of the lead screw body 8, then the locking mechanism 9 is operated, the rear supporting block 4 can be relatively and stably fixed on the slide rail 2 through the locking member 5 and the stretching rod 6, and the locking mechanism 9 is operated to axially move the locking member 5, so that the distance between the rear supporting block 4 and the lead screw body 8 can be pulled, thermal extension generated by operation of the lead screw body 8 is eliminated, finally, the connecting plate 10 is controlled to linearly move through the driving unit, the connecting plate 10 can drive the nut seat 11 to linearly move, the lead screw body 8 is driven to rotate under the pushing of the nut seat 11, the detecting mechanism 12 collects force change data and transmits the force change data to the PC end through the signal amplifier, the change of the full stroke force of the screw body 8 is analyzed, and the two groups of data can be compared and analyzed, so that errors caused by external influences are reduced, and the detection result is more real.
As shown in fig. 3, in some embodiments, the clamping mechanism 7 includes inner cavities 701 respectively formed in the front support block 3 and the rear support block 4, a rotating thimble 702 is fixed in each inner cavity 701 through a bearing, a stretching nut 703 is connected to the surface of each rotating thimble 702 through a thread, an expanding sleeve 704 is fixed to one end of each stretching nut 703, a first locking nut 705 is connected to one end of each expanding sleeve 704 through a thread, a second locking nut 706 is connected to one end of each rotating thimble 702 through a thread, the first locking nut 705 and the expanding sleeve 704 are matched to radially clamp the screw body 8, then, one hand of a person uses a tool to clamp and limit the end of the rotating thimble 702 located at the second locking nut 706, so that the rotating thimble 702 cannot rotate, and the other hand rotates the stretching nut 703 to tightly attach the central hole of the lead screw body 8 to the end of the rotating thimble 702, wherein the central hole is an original reference for processing the lead screw body 8.
As shown in fig. 4, in some embodiments, the locking mechanism 9 includes two locking screws 901 symmetrically connected to the front surface of the locking member 5 by screw threads, a pressing block 902 is sleeved on the surface of the two locking screws 901, the ends of the two locking screws 901 are in close contact with the slide rail 2, a tension screw 903 is rotatably connected to one side wall of the locking member 5 by a bearing, one end of the tension screw 903 is screwed into the tension rod 6, the locking screws 901 are screwed, the locking position of the locking piece 5 can be locked or unlocked according to the requirement, the pressing block 902 can bear and enlarge the stress area when the two locking screws 901 are screwed for locking and positioning, the extrusion deformation of the locking piece 5 is avoided, and the normal sliding of the locking part 5 on the sliding rail 2 is influenced, and the distance between the locking part 5 and the rear supporting block 4 can be enlarged before the locking part 5 is fixed by rotating the stretching screw 903, so that the thermal extension generated by the operation of the lead screw body 8 is eliminated.
As shown in fig. 2 and 5, in some embodiments, the detection mechanism 12 includes a mounting part 1201 fixed on the top of the connecting plate 10, the bottom of the nut seat 11 is detachably mounted in the mounting part 1201 through a cylindrical pin 1202, two tension and pressure sensors 1203 are symmetrically fixed on the surface of the mounting part 1201, the cylindrical pin 1202 can relatively conveniently detach and mount the nut seat 11, and the two tension and pressure sensors 1203 can simultaneously collect data on two sides, so that a person can analyze the data, and errors are reduced.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a vice fluency detection device of ball, is including examining test table (1), its characterized in that: the top of the detection table (1) is respectively fixed with a sliding rail (2) and a front supporting block (3), the front supporting block (3) is in contact with one end of the sliding rail (2), the sliding rail (2) is respectively connected with a rear supporting block (4) and a locking part (5) in a sliding manner, a side wall of the rear supporting block (4) is fixed with a stretching rod (6), the locking part (5) is sleeved on the other end of the stretching rod (6), the front supporting block (3) and the rear supporting block (4) are relatively internally provided with clamping mechanisms (7) and a lead screw body (8) is clamped between the two clamping mechanisms (7), the locking part (5) is provided with a locking mechanism (9) used for fastening on the sliding rail (2), the upper part of the sliding rail (2) is connected with a connecting plate (10) in a sliding manner, the connecting plate (10) is provided with a detection mechanism (12) used for detecting a nut seat (11) on the lead screw body (8), one end of the connecting plate (10) is fixedly connected with a driving unit arranged on the detection table (1).
2. The device for detecting fluency of a ball screw pair according to claim 1, wherein: the clamping mechanism (7) comprises inner cavities (701) which are respectively arranged in a front supporting block (3) and a rear supporting block (4), rotary ejector pins (702) are fixed in the inner cavities (701) through bearings, the surfaces of the rotary ejector pins (702) are connected with stretching nuts (703) through threads, expansion sleeves (704) are fixed at one ends of the stretching nuts (703), first locking nuts (705) are connected at one ends of the expansion sleeves (704) through threads, and second locking nuts (706) are connected at one ends of the rotary ejector pins (702) through threads.
3. The device for detecting fluency of a ball screw pair according to claim 1, wherein: locking mechanism (9) include through two locking screw (901) of screw thread symmetric connection in retaining member (5) front, two the surface cover of locking screw (901) is equipped with briquetting (902), two the tip and slide rail (2) in close contact with of locking screw (901), a lateral wall of retaining member (5) rotates through the bearing and is connected with stretching screw (903), the one end threaded connection of stretching screw (903) is in stretching pole (6).
4. The device for detecting fluency of a ball screw pair according to claim 1, wherein: the detection mechanism (12) comprises a mounting part (1201) fixed on the top of the connecting plate (10), the bottom of the nut seat (11) is detachably mounted in the mounting part (1201) through a cylindrical pin (1202), and two pull and pressure sensors (1203) are symmetrically fixed on the surface of the mounting part (1201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111678562.8A CN114279701B (en) | 2021-12-31 | 2021-12-31 | Ball screw pair fluency detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111678562.8A CN114279701B (en) | 2021-12-31 | 2021-12-31 | Ball screw pair fluency detection device |
Publications (2)
| Publication Number | Publication Date |
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| CN114279701A true CN114279701A (en) | 2022-04-05 |
| CN114279701B CN114279701B (en) | 2024-05-31 |
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| CN202111678562.8A Active CN114279701B (en) | 2021-12-31 | 2021-12-31 | Ball screw pair fluency detection device |
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| CN114279701B (en) | 2024-05-31 |
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