A synchronous ring inner cone jump detection tool

Abstract

The utility model discloses a synchronous ring inner taper runout testing fixture relates to testing fixture technical field, it includes base, pivot, three ball head positioning pin, compression ring and detection mechanism, the base sets up on the top surface of detection platform, the pivot sets up in the top surface middle part of base, is provided with the holding mechanism between pivot and base, the ball head positioning pin is in the top surface near the edge place of pivot and is in round and is distributed, the top surface middle part of compression ring is inwards recessed and forms first through -hole, and the compression ring is pressed on the upper end surface of synchronous ring, and the lock -up surface of synchronous ring outer edge three place is evenly distributed and leans on three ball head positioning pin, one end of detection mechanism is fixed on the detection platform, and the other end of detection mechanism can contact with synchronous ring inner taper surface. The utility model is suitable for line edge use, and the detection speed is fast, and the detection precision is high, and the operator is convenient to self -check, is favorable for production site quality control.

Description

Technical Field

[0001] This utility model relates to the field of inspection tool technology, and in particular to a synchronous ring inner cone runout inspection tool. Background Technology

[0002] The synchronizer is a key component inside a manual transmission. It is mainly used to synchronize the speeds of the driving gear and the driven gear during gear shifting to avoid difficulty in shifting gears or gear grinding caused by speed differences. Its application is mainly in the manual transmission systems of traditional fuel vehicles.

[0003] In the mechanical manufacturing process of synchronizer rings for automotive synchronizers, the runout of the inner cone surface of the synchronizer ring onto the locking tooth surface is a crucial characteristic, affecting the smoothness and comfort of gear shifting. Currently, the runout of the inner cone of the synchronizer ring cannot be measured using a runout meter; it is generally measured using a coordinate measuring machine (CMM) or by changing the measurement reference. Using a CMM is time-consuming, inefficient, and detrimental to quality control on the production line. Changing the measurement reference introduces measurement errors.

[0004] Therefore, those skilled in the art have provided a synchronous ring inner cone runout gauge to solve the problems mentioned in the background art. Summary of the Invention

[0005] This utility model provides a synchronous inner ring cone runout gauge that is suitable for use on the line edge, has a fast detection speed, high detection accuracy, is convenient for operators to self-inspect, is beneficial to quality control on the production site, and overcomes the shortcomings of low efficiency of coordinate measuring machine.

[0006] To achieve the above objectives, this utility model provides the following technical solution: This utility model provides a synchronous ring inner cone runout detector, comprising: A base, which is disposed on the top surface of the testing platform; A rotating shaft is disposed in the middle of the top surface of the base, and a retaining mechanism is provided between the rotating shaft and the base; Three ball-head locating pins are evenly distributed in a circle on the top surface of the rotating shaft near the edge; A pressure ring, the top surface of which is recessed inward to form a first through hole, the pressure ring is pressed on the synchronization ring, and the locking surfaces of the synchronization ring at three evenly distributed locations on the outer edge abut against the three ball-head positioning pins; The testing mechanism has one end fixed to the testing platform and the other end in contact with the inner conical surface of the synchronization ring.

[0007] Furthermore, the rotating shaft includes: A first rotating shaft body has a dustproof ring fitted on its outer side, and the dustproof ring is connected to the first rotating shaft body by a first internal hexagon socket head cap screw. The second rotating shaft body is coaxially arranged with the first rotating shaft body and located on the bottom surface of the first rotating shaft body. The second rotating shaft body passes through the base. Furthermore, the top surface of the first rotating shaft body is recessed inward near the edge to form three second through holes, and the bottom end of the ball-head positioning pin is embedded in the corresponding second through hole.

[0008] Furthermore, the base includes: A support ring, which is disposed on the detection platform; The support base includes a first support body and a second support body arranged coaxially. The first support body is disposed on the support ring. The diameter of the second support body is smaller than the diameter of the first support body. The top surface of the second support body is recessed inward to form a third through hole, which extends to the bottom surface of the first support body. The bottom end of the dustproof ring is engaged with the first supporting body; The second rotating shaft body passes through the third through hole and extends into the support ring.

[0009] Furthermore, the second support body and the support ring are connected by three second hexagon socket head cap screws.

[0010] Furthermore, the cage includes: Two end face retainers are respectively disposed on the bottom surface of the first support body and the top surface of the second support body; A radial retainer is sleeved on the second rotating shaft body, and the top and bottom ends of the radial retainer are respectively connected to two end face retainers.

[0011] Furthermore, the upper end face retainer is located between the second support body and the first rotating shaft body, and the lower end face retainer is located on the bottom surface of the first support body, with a locking mechanism provided below the end face retainer.

[0012] Furthermore, the locking mechanism includes a round nut, which is threaded to the bottom of the second rotating shaft body. A stop washer is provided on the top surface of the round nut, and a butterfly spring is provided on the top surface of the stop washer. The butterfly spring abuts against the bottom surface of the pressure ring, and the pressure ring presses against the end face retainer located below. The stop washer, the disc spring, and the pressure ring are all fitted onto the second rotating shaft body.

[0013] Furthermore, the bottom surface of the pressure ring is recessed inward to form a first circular groove, and the bottom wall of the first circular groove is recessed inward to form a second circular groove. The second circular groove communicates with the first through hole, and the synchronization ring is located in the second circular groove.

[0014] Furthermore, the detection mechanism includes a magnetic gauge base, which is installed on the detection platform and located on one side of the support ring. A vertical rod is provided at the top of the magnetic gauge base, and the top of the vertical rod is connected through one end of a horizontal rod. A lever dial indicator is installed at the other end of the horizontal rod, and the detection probe of the lever dial indicator can extend into the first through hole and contact the inner conical surface of the synchronization ring.

[0015] In the above technical solution, the synchronous ring inner cone runout gauge provided by this utility model has the following beneficial effects: 1. The inspection tool in this application is simple to use, quick to inspect, and the indicator readings are intuitive, making it convenient for use by the line edge.

[0016] 2. The carbide balls on the three circumferentially distributed ball-head locating pins contact the locking surface of the synchronous ring for positioning, achieving automatic centering. Furthermore, the positioning datum is consistent with the measurement datum on the drawing (synchronous ring locking surface), eliminating positioning errors.

[0017] 3. Carbide balls have high dimensional accuracy, high hardness, wear resistance, and long service life.

[0018] 4. The shaft rotates flexibly and with high precision. During use, after the rotating parts wear down, the disc spring can maintain a certain pressure on the steel balls on the upper and lower surfaces of the base to ensure that it does not move axially.

[0019] 5. The weight of the pressure ring placed on the upper end of the synchronization ring ensures that the synchronization ring will not change position due to the measuring force during testing, thus preventing measurement errors. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0021] Figure 1 A cross-sectional view of a synchronous ring inner cone runout gauge provided for an embodiment of this utility model; Figure 2 for Figure 1 Top view of the axis of rotation; Figure 3 for Figure 2 AA side sectional view; Figure 4 for Figure 2 Schematic diagram of the B-direction structure; Figure 5 for Figure 1 Cross-sectional view of the middle dustproof ring Figure 6 for Figure 1 Cross-sectional view of the central support ring; Figure 7 for Figure 1 Top view of the central support base; Figure 8 for Figure 7 CC side sectional view; Figure 9 for Figure 1 Top view of the mid-end face cage; Figure 10 for Figure 9 A sectional view; Figure 11 for Figure 1 Top view of the radial cage Figure 12 for Figure 10 Side sectional view of DD; Figure 13 for Figure 10 Middle EE side sectional view; Figure 14 for Figure 1 Cross-sectional view of the intermediate pressure ring; Figure 15 for Figure 1 Top view of the intermediate pressure ring; Figure 16 for Figure 15 A sectional view; Figure 17 for Figure 1 Cross-sectional view of the intermediate synchronization loop.

[0022] Explanation of reference numerals in the attached figures: 1. Base; 2. Testing platform; 3. Rotating shaft; 4. Holding mechanism; 5. Ball head locating pin; 6. Pressure ring; 7. First through hole; 8. Synchronization ring; 9. Testing mechanism; 10. First rotating shaft body; 11. Dustproof ring; 12. First internal hexagon socket head cap screw; 13. Second rotating shaft body; 14. Second through hole; 15. Support ring; 16. Support seat; 17. First support body; 18. Second support body; 19. Third through hole; 20. Second internal hexagon socket head cap screw; 21. End face retainer; 22. Radial retainer; 23. Locking mechanism; 24. Round nut; 25. Stop washer; 26. Butterfly spring; 27. Pressure ring; 28. First circular groove; 29. ​​Second circular groove; 30. Magnetic gauge base; 31. Vertical rod; 32. Horizontal rod; 33. Lever dial indicator; 34. Testing probe; 35. Locking surface. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] See Figure 1 As shown; The synchronous ring inner cone runout detector according to this embodiment of the utility model includes: Base 1, which is disposed on the top surface of the detection platform 2; A rotating shaft 3 is disposed in the middle of the top surface of the base 1, and a retaining mechanism 4 is provided between the rotating shaft 3 and the base 1; Three ball-head locating pins 5 are evenly distributed in a circle on the top surface of the rotating shaft 4 near the edge; The pressure ring 6 has a first through hole 7 formed by the inward indentation of the middle of its top surface. The pressure ring 6 presses against the synchronization ring 8. The locking surfaces of the synchronization ring 8 are evenly distributed at three locations on its outer edge and abut against the three ball-head positioning pins 5. The detection mechanism 9 has one end fixed to the detection platform 2, and the detection probe 34 of the detection mechanism 9 is in contact with the inner conical surface of the synchronization ring 8.

[0025] See Figure 1-5 As shown; The rotating shaft 3 includes: A first rotating shaft body 10 is provided with a dustproof ring 11 on its outer side. The dustproof ring 11 is connected to the first rotating shaft body 10 by a first internal hexagon socket head cap screw 12. The second rotating shaft body 13 is coaxially arranged with the first rotating shaft body 10 and located on the bottom surface of the first rotating shaft body 10. The second rotating shaft body 13 passes through the base 1.

[0026] The first rotating shaft body 10 is driven to rotate by rotating the dustproof ring 11. The first rotating shaft body 10 and the second rotating shaft body 13 are integrally formed structures, so the second rotating shaft body 13 rotates synchronously with the first rotating shaft body 10.

[0027] The top surface of the first rotating shaft body 10 is recessed inward near the edge to form three second through holes 14, and the bottom end of the ball head positioning pin 5 is embedded in the corresponding second through hole 14.

[0028] The ball-head locating pin 5 includes a locating pin and a cemented carbide ball welded to its top. The cemented carbide ball is used to support the synchronization ring 8. The locating pin is embedded in the corresponding second through hole 14. The positional error of the cemented carbide ball relative to the first rotating shaft body 10 is less than 0.01 mm, and the rotational accuracy (runout) of the outer side of the cemented carbide ball is less than 0.01 mm.

[0029] See Figure 1 , 6 As shown in -8; The base 1 includes: Support ring 15, the support ring 15 is disposed on the detection platform 2; The support base 16 includes a first support body 17 and a second support body 18 coaxially arranged. The first support body 17 is disposed on the support ring 15. The diameter of the second support body 18 is smaller than the diameter of the first support body 17. The top surface of the second support body 18 is recessed inward to form a third through hole 19, which extends to the bottom surface of the first support body 17. The bottom end of the dustproof ring 11 is engaged with the first support body 17; The second rotating shaft body 13 passes through the third through hole 19 and extends into the support ring 15.

[0030] The support ring 15 is connected to the first support body 17 by three screws.

[0031] The second support body 18 and the support ring 15 are connected by three second internal hexagon head screws 20.

[0032] The first support body 17 and the second support body 18 are integrally formed structures and cooperate with the retaining mechanism 4 as rotating supports for the first rotating shaft body 10 and the second rotating shaft body 13.

[0033] See Figure 1 , 9 As shown in -13; The cage 4 includes: Two end face retainers 21 are respectively disposed on the bottom surface of the first support body 17 and the top surface of the second support body 18; A radial retainer 22 is sleeved on the second rotating shaft body 13, and the top and bottom ends of the radial retainer 22 are respectively connected to two end face retainers 21.

[0034] The end face retainer 21 and the radial retainer 22 are used to keep the distance and position between the steel balls inside them unchanged, so that stable rotation can be completed between the first support body 17 and the second rotating shaft body 13, between the first support body 17 and the pressure ring 27, and between the second support body 18 and the first rotating shaft body 10.

[0035] The upper end face retainer 21 is located between the second support body 18 and the first rotating shaft body 10, and the lower end face retainer 21 is located on the bottom surface of the first support body 17, and the lower end face retainer 21 is locked by a locking mechanism 23.

[0036] The first support body 17 and the second support body 18, the end face retainer 21, the radial retainer 22, the first rotating shaft body 10, the second rotating shaft body 13, and the ball head locating pin 5 constitute a rotating mechanism.

[0037] See Figure 1 , 14 As shown; The locking mechanism 23 includes a round nut 24, which is threaded to the bottom of the second rotating shaft body 13. A stop washer 25 is provided on the top surface of the round nut 24, and a butterfly spring 26 is provided on the top surface of the stop washer 25. The butterfly spring 26 abuts against the bottom surface of the pressure ring 27, and the pressure ring 27 presses against the end face retainer 21 located below. The stop washer 25, the butterfly spring 26, and the pressure ring 27 are all sleeved on the second rotating shaft body 13.

[0038] By rotating the round nut 24, a certain pressure is applied to the disc spring 26 and the pressure ring 27, ensuring that the first rotating shaft body 10 and the second rotating shaft body 13 can rotate without axial movement. The stop washer 25 can prevent the round nut 24 from loosening during use.

[0039] The round nut 24 makes the connection between the second support body 17, the first support body 18, the end face retainer 21, the radial retainer 22 and the second rotating shaft body 13 more stable, and at the same time ensures that the second rotating shaft body 13 will not separate when it rotates.

[0040] See Figure 1 , 15 As shown in -16; The bottom surface of the pressure ring 6 is recessed inward to form a first circular groove 28, and the bottom wall of the first circular groove 28 is recessed inward to form a second circular groove 29. The second circular groove 29 is connected to the first through hole 7, and the synchronization ring 8 is located in the second circular groove 29.

[0041] See Figure 1 As shown; The detection mechanism 9 includes a magnetic base 30, which is mounted on the detection platform 2 and located on one side of the support ring 14. A vertical rod 31 is provided at the top of the magnetic base 30. The top of the vertical rod 31 is connected to one end of a horizontal rod 32. A lever dial indicator 33 is installed at the other end of the horizontal rod 32. The detection probe 34 of the lever dial indicator 33 can extend into the first through hole 7 and contact the inner conical surface of the synchronization ring 8.

[0042] Place the inspection tool of this application on the inspection platform 2, and then position the synchronous ring 8 along the locking surface 35 in the 3-120° direction (see...). Figure 17Position the pressure ring 6 on the three ball-head locating pins, then place the pressure ring 6 on the large end face of the synchronization ring 8. Adjust the position of the lever dial indicator 33 so that the testing probe 34 contacts the middle position of the inner conical surface of the synchronization ring 8, and adjust the compression of the lever dial indicator probe 34 to about 0.2mm. Manually rotate the dustproof ring 11 to make it rotate one revolution. The fluctuation of the reading of the lever dial indicator 33 is the runout of the inner conical surface of the synchronization ring 8 on the locking surface.

[0043] In practical use, the detection probe 34 is brought into contact with the inner conical surface of the synchronization ring 8, and the dustproof ring 11 is rotated to make it rotate one revolution. The fluctuation of the reading of the lever dial indicator 33 is the inner cone runout of the synchronization ring.

[0044] The inspection tool applied for has been successfully used on the production line, greatly facilitating on-site product quality control.

[0045] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A synchronous ring inner cone runout gauge, characterized in that, include: A base (1) is disposed on the top surface of the detection platform (2); A rotating shaft (3) is located in the middle of the top surface of the base (1), and a retaining mechanism (4) is provided between the rotating shaft (3) and the base (1). Three ball-head locating pins (5) are evenly distributed in a circle on the top surface of the rotating shaft (3) near the edge; A pressure ring (6) is formed by an inward recess in the middle of the top surface of the pressure ring (6). The pressure ring (6) is pressed against the upper end face of the synchronization ring (8). The locking surfaces of the three evenly distributed points on the outer edge of the synchronization ring (8) abut against the three ball-head positioning pins (5). The detection mechanism (9) has one end fixed to the detection platform (2) and the other end of the detection mechanism (9) in contact with the inner cone surface of the synchronization ring (8).

2. The synchronous ring inner cone runout gauge according to claim 1, characterized in that: The rotating shaft (3) includes: The first rotating shaft body (10) is fitted with a dustproof ring (11) on its outer side, and the dustproof ring (11) is connected to the first rotating shaft body (10) by a first internal hexagonal head screw (12); The second rotating shaft body (13) is coaxially arranged with the first rotating shaft body (10) and located on the bottom surface of the first rotating shaft body (10). The second rotating shaft body (13) passes through the base (1).

3. The synchronous ring inner cone runout gauge according to claim 2, characterized in that: The top surface of the first rotating shaft body (10) is recessed inward near the edge to form three second through holes (14), and the bottom end of the ball head positioning pin (5) is embedded in the corresponding second through hole (14).

4. The synchronous ring inner cone runout gauge according to claim 3, characterized in that: The base (1) includes: A support ring (15) is provided on the detection platform (2); The support base (16) includes a first support body (17) and a second support body (18) arranged coaxially. The first support body (17) is disposed on the support ring (15). The diameter of the second support body (18) is smaller than the diameter of the first support body (17). The top surface of the second support body (18) is recessed inward to form a third through hole (19). The third through hole (19) extends to the bottom surface of the first support body (17). The bottom end of the dustproof ring (11) is engaged with the first support body (17); The second rotating shaft body (13) passes through the third through hole (19) and extends into the support ring (15).

5. The synchronous ring inner cone runout gauge according to claim 4, characterized in that: The second support body (18) and the support ring (15) are connected by three second internal hexagon head screws (20).

6. The synchronous ring inner cone runout gauge according to claim 5, characterized in that: The retaining mechanism (4) includes: Two end face retainers (21) are respectively disposed on the bottom surface of the first support body (17) and the top surface of the second support body (18); A radial retainer (22) is sleeved on the second rotating shaft body (13), and the top and bottom ends of the radial retainer (22) are respectively connected to two end face retainers (21).

7. The synchronous ring inner cone runout gauge according to claim 6, characterized in that: The upper end face retainer (21) is located between the second support body (18) and the first rotating shaft body (10), and the lower end face retainer (21) is located on the bottom surface of the first support body (17), and a locking mechanism (23) is provided below the end face retainer (21).

8. The synchronous ring inner cone runout gauge according to claim 7, characterized in that: The locking mechanism (23) includes a round nut (24), which is threaded to the bottom of the second rotating shaft body (13). A stop washer (25) is provided on the top surface of the round nut (24), and a butterfly spring (26) is provided on the top surface of the stop washer (25). The butterfly spring (26) abuts against the bottom surface of the pressure ring (27), and the pressure ring (27) presses against the end face retainer (21) located below. The stop washer (25), the butterfly spring (26) and the pressure ring (27) are all sleeved on the second rotating shaft body (13).

9. The synchronous ring inner cone runout gauge according to claim 1, characterized in that: The bottom surface of the pressure ring (6) is recessed inward to form a first circular groove (28), and the bottom wall of the first circular groove (28) is recessed inward to form a second circular groove (29). The second circular groove (29) is connected to the first through hole (7), and the synchronization ring (8) is located in the second circular groove (29).

10. A synchronous ring inner cone runout gauge according to claim 4, characterized in that: The detection mechanism (9) includes a magnetic base (30), which is installed on the detection platform (2) and located on one side of the support ring (15). A vertical rod (31) is provided at the top of the magnetic base (30). The top of the vertical rod (31) is connected through one end of a horizontal rod (32). A lever dial indicator (33) is installed at the other end of the horizontal rod (32). The detection probe (34) of the lever dial indicator (33) can extend into the first through hole (7) and contact the inner conical surface of the synchronization ring (8).

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