A punching apparatus for an automotive clutch driven plate assembly

Abstract

The application discloses a punching device for a clutch driven plate assembly of an automobile, which comprises a device base, a lower mounting plate arranged on the device base, a sleeve fixedly arranged on the lower mounting plate, a first sliding rod and a second sliding rod slidingly arranged at the upper end and the lower end of the sleeve respectively, a drilling assembly arranged on the first sliding rod, and a positioning sleeve arranged on the second sliding rod, wherein the positioning sleeve is of a hollow structure and is arranged in a position corresponding to the drilling assembly. Through the technical scheme, the drilling assembly and the positioning sleeve are arranged at the upper end and the lower end of the driven plate respectively, the positioning sleeve is lifted when the drilling assembly drills downwards, the driven plate is not prone to deviation, and the accuracy of drilling is ensured.

Description

Technical Field

[0001] This invention relates to the field of drilling equipment technology, and more particularly to a drilling device for automotive clutch driven plate assemblies. Background Technology

[0002] As a core component of the power transmission system, the driven disc assembly of an automotive clutch directly affects the smoothness of clutch engagement and the reliability of transmission. The driven disc body typically consists of a disc hub assembly with friction linings. Several mounting and positioning holes need to be machined evenly around the disc body to achieve precise assembly with the flywheel. A hole misalignment exceeding 0.1mm can lead to dynamic balance failure. Traditional hydraulic punching equipment uses a single-sided punching mode, completing the punching operation only through unidirectional force applied by the lower die, without a dynamic compensation mechanism on the upper side. This asymmetrical punching method results in a slight misalignment of the disc body due to the lack of synchronous reaction force support on the opposite side at the moment the punch contacts the disc body, especially when punching thin-walled high-carbon steel driven discs. This deformation directly causes a deviation in the diameter of the circumferential hole distribution circle, not only reducing assembly accuracy but also inducing harmonic resonance during high-speed rotation, leading to abnormal wear of the clutch assembly. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention discloses a drilling device for an automotive clutch driven plate assembly, comprising a base, a lower mounting plate mounted on the base, a sleeve fixedly mounted on the lower mounting plate, a first sliding rod and a second sliding rod slidably mounted on the upper and lower ends of the sleeve, respectively, a drilling assembly mounted on the first sliding rod, and a positioning sleeve mounted on the second sliding rod. The positioning sleeve has a hollow structure and its position corresponds to the drilling assembly. Through this technical solution, the drilling assembly and the positioning sleeve are located at the upper and lower ends of the driven plate, respectively. When the drilling assembly drills downwards, the positioning sleeve supports the driven plate, preventing it from shifting and ensuring drilling accuracy.

[0004] Furthermore, a driven gear is rotatably mounted inside the sleeve, and a first lead screw and a second lead screw are fixedly mounted at both ends of the driven gear. Threaded holes are provided inside the second sliding rod and the first sliding rod. The first sliding rod cooperates with the first lead screw, and the second lead screw cooperates with the second sliding rod.

[0005] Furthermore, the device base is equipped with a clamping assembly that clamps the driven disk, and the positioning sleeve and drill bit are located on the upper and lower sides of the driven disk.

[0006] Furthermore, a track rod is fixedly mounted on the equipment base, and a lower mounting plate is slidably mounted on the track rod. An extension tube is fixedly mounted on the equipment base, and a height spring is fixedly mounted on the extension tube. The height spring is fixedly connected to the lower mounting plate. Through this technical solution, the driven gear rotates, driving the first and second lead screws, which in turn simultaneously drive the drilling assembly and the positioning sleeve to move. When the positioning sleeve contacts the driven plate, it cannot continue to rise, so the lower mounting plate descends to compress the height spring, ensuring the complete operation of the machine.

[0007] Furthermore, a second connecting plate is fixedly mounted on the second sliding rod, a first connecting plate is fixedly mounted on the first sliding rod, a drive disk is rotatably mounted on the second connecting plate, a nozzle is mounted on the drive disk, and the positioning sleeve is a round tube open at both ends, with the nozzle used to clean the inner wall of the positioning sleeve.

[0008] Furthermore, a support rod is fixedly mounted on the drive disc, a rotating pin is rotatably mounted on the support rod, a mating rod is fixedly mounted on the rotating pin, a water spray rod is fixedly mounted on the mating rod, a second water spray head is provided at the end of the water spray rod, a torsion spring is fixedly mounted between the rotating pin and the support rod, and an angle is set between the water spray rod and the mating rod.

[0009] Furthermore, a liquid collection tank is fixedly installed on the base of the equipment, and a hydraulic pump is fixedly installed inside the liquid collection tank. The hydraulic pump is connected to a supporting rod to supply water to the water spray bar. A connecting pipe is provided at the lower part of the supporting rod, and the connecting pipe is inserted into the support rod to start supplying water.

[0010] Furthermore, a first water spray head is fixedly mounted on the spray rod, with the spray direction of the first water spray head perpendicular to that of the second water spray head. Through this technical solution, when the first and second water spray heads enter the positioning sleeve, they clean the inner wall of the positioning sleeve, preventing chips from sticking to it. Chips stuck to the positioning sleeve would affect the drilling accuracy. Simultaneously, multiple cleaning heads at different angles can clean chips from different locations, reaching both the inner wall and the surface. When the positioning sleeve descends, the mating rod is activated, simultaneously causing the connecting pipe to insert into the support rod and allow water to flow through. At this time, the spray rod rotates to the designated angle for cleaning.

[0011] Furthermore, the clamping assembly includes a support frame, a lower crossbar fixedly mounted on the support frame, a positioning motor fixedly mounted on the lower crossbar, a mounting base fixedly mounted on the positioning motor shaft, a clamping shaft fixedly mounted on the mounting base, and a clamping head detachably mounted on the clamping shaft, which is pressed downward by a clamping electric cylinder.

[0012] The advantages of this invention compared to the prior art are:

[0013] (1) With the technical solution of the present invention, the drilling assembly and the positioning sleeve are located at the upper and lower ends of the driven plate respectively. When the drilling assembly drills downward, the positioning sleeve supports it, making it less likely for the driven plate to deviate, thus ensuring the accuracy of drilling.

[0014] (2) Through the technical solution of the present invention, the driven gear rotates to drive the first lead screw and the second lead screw, thereby simultaneously driving the drilling assembly and the positioning sleeve to move. When in contact with the driven plate, the positioning sleeve cannot continue to rise, so the lower mounting plate will descend to compress the height spring, ensuring the complete operation of the machine.

[0015] (3) Through the technical solution of the present invention, when the first and second water spray heads enter the positioning sleeve, they clean the inner wall of the positioning sleeve so that the chips will not stick to the positioning sleeve. The chips stuck to the positioning sleeve will affect the drilling accuracy. At the same time, multiple cleaning heads at different angles can clean the chips at different positions, which can clean both the inner wall and the top. When the positioning sleeve descends, the mating rod is moved, and the connecting pipe is inserted into the support rod to pass water. At this time, the water spray rod rotates to the specified angle to clean. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention.

[0017] Figure 2 This is a side view of an embodiment of the present invention.

[0018] Figure 3 for Figure 2 Cross-sectional view at point AA.

[0019] Figure 4 for Figure 2 Cross-sectional view at point BB.

[0020] Figure 5 This is a schematic diagram of an embodiment of the present invention with a housing.

[0021] Figure 6 for Figure 5 Enlarged view of point C in the middle.

[0022] Figure 7 This is a schematic diagram of some parts in an embodiment of the present invention.

[0023] Figure 8 This is a schematic diagram of the clamping assembly according to an embodiment of the present invention.

[0024] Reference numerals: 1-Equipment base; 2-Part housing; 3-Enclosure plate; 4-Rail rod; 5-Extension tube; 6-Height spring; 7-Lower mounting plate; 8-Upper mounting plate; 9-Limit cap; 10-Telescopic motor; 11-Driving gear; 12-Driven gear; 13-First lead screw; 14-First sliding rod; 15-Second lead screw; 16-Second sliding rod; 17-Second connecting plate; 18-First connecting plate; 19-Sleeve; 20-Transmission rod; 21-Connecting disc; 22-Compensating spring; 23-Drill bit; 24-Fixed... 25-Positioning sleeve; 26-Moving electric cylinder; 27-Support frame; 28-Lower cross frame; 29-Positioning motor; 20-Upper cross frame; 31-Mounting base; 32-Clamping electric cylinder; 33-Connecting piece; 34-Clamping sleeve; 35-Clamping gasket; 36-Clamping shaft; 37-Clamping head; 38-Collection tank; 39-Hydraulic pump; 40-Support rod; 41-Matching rod; 42-Rotating pin; 43-Torsion spring; 44-Water spray rod; 45-Water spray head one; 46-Water spray head two; 47-Driven plate; 48-Connecting pipe. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] like Figures 1-8 As shown, a drilling device for a driven disc assembly of an automotive clutch includes a base 1, on which a lower mounting plate 7 and an upper mounting plate 8 are mounted. A sleeve 19 is fixedly mounted on the lower mounting plate 7. The sleeve 19 is used to fix the lower mounting plate 7 and the upper mounting plate 8. The sleeve 19 has a hollow structure. A first sliding rod 14 and a second sliding rod 16 are slidably mounted on the upper and lower ends of the sleeve 19, respectively, and are located inside the sleeve 19. A drilling assembly is mounted on the first sliding rod 14, and a positioning sleeve 24 is mounted on the second sliding rod 16. The positioning sleeve 24 has a hollow structure and its position corresponds to the drilling assembly. The second sliding rod 16 and the drilling assembly approach each other. The drilling assembly drills a hole in the driven plate 47. The positioning sleeve 24 holds the drilling position from below. The drill bit 23 finally drills into the positioning sleeve 24. Through the above technical solution, the drilling assembly and the positioning sleeve 24 are located at the upper and lower ends of the driven plate 47, respectively. When the drilling assembly drills downward, the positioning sleeve 24 supports it, making it less likely for the driven plate 47 to shift, thus ensuring the accuracy of the drilling. The part housing 2 provides protection.

[0027] In this embodiment, a driven gear 12 is rotatably mounted inside the sleeve 19. A first lead screw 13 and a second lead screw 15 are fixedly mounted at both ends of the driven gear 12. Threaded holes are provided in the second sliding rod 16 and the first sliding rod 14. The first sliding rod 14 cooperates with the first lead screw 13, and the second lead screw 15 cooperates with the second sliding rod 16. The rotation of the driven gear 12 can drive the first sliding rod 14 and the second sliding rod 16 to move away from or towards each other simultaneously. External teeth are provided on the circumferential surface of the driven gear 12. A telescopic motor 10 is fixedly mounted on the lower mounting plate 7. A driving gear 11 is fixedly mounted on the shaft of the telescopic motor 10. The driving gear 11 meshes externally with the driven gear 12. The telescopic motor 10 drives the driving gear 11 and the driven gear 12 to rotate.

[0028] In this embodiment, a clamping assembly is installed on the device base 1. The clamping assembly clamps the driven disk 47. The positioning sleeve 24 and the drill bit 23 are located on the upper and lower sides of the driven disk 47. The clamping assembly can drive the driven disk 47 to rotate and drill holes at different positions.

[0029] In this embodiment, a track rod 4 is fixedly mounted on the equipment base 1, and a lower mounting plate 7 and an upper mounting plate 8 are slidably mounted on the track rod 4. An extension tube 5 is fixedly mounted on the equipment base 1, and a height spring 6 is fixedly mounted on the extension tube 5. The height spring 6 is fixedly connected to the lower mounting plate 7. In its natural straight state, the lower mounting plate 7 and the upper mounting plate 8 are kept at a certain height by the height spring 6. Through the above technical solution, the driven gear 12 rotates, driving the first lead screw 13 and the second lead screw 15, which in turn simultaneously drives the drilling assembly and the positioning sleeve 24 to move. When it contacts the driven plate 47, the positioning sleeve 24 cannot continue to rise, so the lower mounting plate 7 will descend and compress the height spring 6, ensuring the complete operation of the machine.

[0030] In this embodiment, a second connecting plate 17 is fixedly mounted on the second sliding rod 16, and a first connecting plate 18 is fixedly mounted on the first sliding rod 14. The first connecting plate 18 is fixedly connected to the drilling assembly. A drive disk 40 is rotatably mounted on the second connecting plate 17, and a nozzle is mounted on the drive disk 40. The positioning sleeve 24 is a round tube with open ends, and the nozzle is used to clean the inner wall of the positioning sleeve 24.

[0031] In this embodiment, a support rod 39 is fixedly mounted on the drive disc 40. A rotating pin 42 is rotatably mounted on the support rod 39. A mating rod 41 is fixedly mounted on the rotating pin 42. A water spray rod 44 is fixedly mounted on the mating rod 41. A water spray head 46 is provided at the end of the water spray rod 44. A torsion spring 43 is fixedly mounted between the rotating pin 42 and the support rod 39. An angle is set between the water spray rod 44 and the mating rod 41. A liquid collection tank 37 is fixedly mounted on the equipment base 1. A hydraulic pump 38 is fixedly mounted in the liquid collection tank 37. The hydraulic pump 38 is connected to the mating rod 41 to supply water to the water spray rod 44. A connecting pipe 48 is provided at the lower part of the mating rod 41. The connecting pipe 48 is inserted into the support rod 39 to start supplying water.

[0032] A water spray head 45 is fixedly mounted on the water spray rod 44, and the water spray direction of the water spray head 45 is perpendicular to that of the water spray head 46. Through the above technical solution, when the water spray head 45 and the water spray head 46 enter the positioning sleeve 24, they clean the inner wall of the positioning sleeve 24, preventing chips from sticking to the positioning sleeve 24. Chips stuck to the positioning sleeve 24 will affect the drilling accuracy. At the same time, multiple cleaning heads at different angles can clean chips at different locations, cleaning both the inner wall and the top. When the positioning sleeve 24 descends, the mating rod 41 is activated, which simultaneously drives the connecting pipe 48 to be inserted into the support rod 39 to allow water to flow. At this time, the water spray rod 44 rotates to the designated angle to perform cleaning.

[0033] In this embodiment, the clamping assembly includes a support frame 26. A movable electric cylinder 25 is fixedly mounted on the equipment base 1. The output end of the movable electric cylinder 25 is fixedly mounted on the support frame 26. A lower crossbeam 27 and an upper crossbeam 29 are fixedly mounted on the support frame 26. A positioning motor 28 is fixedly mounted on the lower crossbeam 27. A mounting base 30 is fixedly mounted on the shaft of the positioning motor 28. A clamping shaft 35 is fixedly mounted on the mounting base 30. A clamping head 36 is detachably mounted on the clamping shaft 35. A connecting piece 32 is fixedly mounted on the clamping sleeve 33. The cylinder arm is fixedly mounted with a clamping electric cylinder 31, which is fixedly mounted on the mounting base 30. After the clamping head 36 is removed, the driven plate 47 is placed on it. Then, the driven plate 47 is installed concentrically with the clamping shaft 35. The clamping head 36 is then installed to perform compression and fixation. At the same time, the driven plate 47 is driven to rotate by the positioning motor 28. A clamping pad 34 is fixedly mounted on the clamping sleeve 33. The upper side of the clamping pad 34 is in contact with the lower side of the driven plate 47, which drives the driven plate 47 to rotate. The mounting base 30 is pressed downward by the clamping electric cylinder 31.

[0034] In this embodiment, the drilling assembly includes a connecting plate 21, which is rotatably mounted on a first connecting plate 18. A transmission rod 20 is slidably mounted on the connecting plate 21, and a drill bit 23 is mounted at the bottom of the transmission rod 20. A compensating spring 22 is fixedly mounted between the drill bit 23 and the connecting plate 21. A power source such as a motor or hydraulic motor is mounted on the first connecting plate 18 to drive the transmission rod 20 to rotate.

[0035] Working principle: First, remove the clamping head 36. The clamping head 36 and the clamping shaft 35 are connected by bolts for easy disassembly. Then, place the driven plate 47 on the clamping pad 34. Next, install the clamping head 36 and tighten the bolts. At this time, the clamping head 36 has not yet pressed the driven plate 47. Then, start the clamping electric cylinder 31. The clamping electric cylinder 31 drives the clamping sleeve 33 to rise and the mounting base 30 to fall. The mounting base 30 drives the clamping shaft 35 and the clamping head 36 to fall. The clamping sleeve 33 and the clamping pad 34 rise to clamp the driven plate 47 in the middle.

[0036] The telescopic motor 10 is started, which drives the drive gear 11 to rotate. The drive gear 11 drives the driven gear 12, which drives the first lead screw 13 and the second lead screw 15. This further drives the first sliding rod 14 and the second sliding rod 16 to move closer together. At this time, the drilling assembly and the positioning sleeve 24 move closer together through the first connecting plate 18 and the second connecting plate 17. The top of the positioning sleeve 24 and the bottom of the drill bit 23 contact the driven plate 47. The transmission rod 20 rotates, which drives the drill bit 23 to start drilling and sprays liquid for cooling. Finally, the drill bit 23 penetrates the driven plate 47 and enters the positioning sleeve 24. During the process, the positioning sleeve 24 cannot continue to rise after contacting the driven plate 47. At this time, the lower mounting plate 7 and the upper mounting plate 8 will descend as a whole to compress the height spring 6.

[0037] After drilling is completed, the original position is restored. During the process, the bottom of the positioning sleeve 24 contacts the mating rod 41, causing the mating rod 41 to rotate and fit against the support rod 39. At the same time, the connecting pipe 48 is gradually inserted into the support rod 39. The hydraulic pump 38 is arc-shaped. There are round holes on both sides of the support rod 39. One-way valves are installed on the round holes. The connecting pipe 48 is inserted into the round holes to connect the water circuit. There is no leakage when the connecting pipe 48 leaves the round holes. The liquid collection tank 37 and the baffle plate 3 will collect the cooling wastewater. It is filtered by the hydraulic pump 38 and then into the mating rod 41. The mating rod 41 is raised so that the second water spray head 46 is inclined upward to clean the inner wall of the positioning sleeve 24. Finally, the first water spray head 45 extends to the positioning sleeve 24 and cleans the chips on the upper end face of the positioning sleeve 24.

[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A drilling device for an automotive clutch driven plate assembly, comprising a device base (1), characterized in that, The equipment base (1) is equipped with a lower mounting plate (7), and a sleeve (19) is fixedly mounted on the lower mounting plate (7). The upper and lower ends of the sleeve (19) are respectively slidably equipped with a first sliding rod (14) and a second sliding rod (16). A drilling assembly is mounted on the first sliding rod (14), and a positioning sleeve (24) is mounted on the second sliding rod (16). The positioning sleeve (24) is a hollow structure and its position corresponds to the drilling assembly. The sleeve (19) is rotatably equipped with a driven gear (12), and the two ends of the driven gear (12) are fixedly equipped with a first lead screw (13) and a second lead screw (15). The second sliding rod (16) and the first sliding rod (14) are provided with threaded holes. The first sliding rod (14) cooperates with the first lead screw (13), and the second lead screw (15) cooperates with the second sliding rod (16). The equipment base (1) is equipped with a clamping assembly, which clamps the driven disk (47). The positioning sleeve (24) and the drill bit (23) are located on the upper and lower sides of the driven disk (47). A track rod (4) is fixedly mounted on the equipment base (1), a lower mounting plate (7) is slidably mounted on the track rod (4), an extension tube (5) is fixedly mounted on the equipment base (1), a height spring (6) is fixedly mounted on the extension tube (5), and the height spring (6) is fixedly connected to the lower mounting plate (7). A second connecting plate (17) is fixedly mounted on the second sliding rod (16), a first connecting plate (18) is fixedly mounted on the first sliding rod (14), a drive disk (40) is rotatably mounted on the second connecting plate (17), a nozzle is mounted on the drive disk (40), and the positioning sleeve (24) is a round tube with open ends. The nozzle is used to clean the inner wall of the positioning sleeve (24).

2. The drilling device for an automotive clutch driven plate assembly according to claim 1, characterized in that, A support rod (39) is fixedly mounted on the drive disc (40). A rotating pin (42) is rotatably mounted on the support rod (39). A mating rod (41) is fixedly mounted on the rotating pin (42). A water spray rod (44) is fixedly mounted on the mating rod (41). A second water spray head (46) is provided at the end of the water spray rod (44). A torsion spring (43) is fixedly mounted between the rotating pin (42) and the support rod (39). An angle is set between the water spray rod (44) and the mating rod (41).

3. A drilling device for an automotive clutch driven plate assembly according to claim 2, characterized in that, The equipment base (1) is fixedly equipped with a liquid collection tank (37), and a hydraulic pump (38) is fixedly installed in the liquid collection tank (37). The hydraulic pump (38) is connected to the cooperating rod (41) to supply water to the water spray rod (44). A connecting pipe (48) is provided at the lower part of the cooperating rod (41). The connecting pipe (48) is inserted into the support rod (39) to start supplying water.

4. A drilling device for an automotive clutch driven plate assembly according to claim 3, characterized in that, The water spray bar (44) is fixedly equipped with a water spray head one (45), and the water spray direction of the water spray head one (45) is perpendicular to that of the water spray head two (46).

5. A drilling device for an automotive clutch driven plate assembly according to claim 1, characterized in that, The clamping assembly includes a support frame (26), a lower crossbar (27) fixedly mounted on the support frame (26), a positioning motor (28) fixedly mounted on the lower crossbar (27), a mounting seat (30) fixedly mounted on the shaft of the positioning motor (28), a clamping shaft (35) fixedly mounted on the mounting seat (30), and a clamping head (36) detachably mounted on the clamping shaft (35), which is pressed downward by a clamping electric cylinder (31).

Images