Gear sleeve machining clamp

Abstract

The invention relates to the field of gear sleeve machining, and particularly discloses a gear sleeve machining clamp which comprises a base, a center cylinder is fixed to the upper end face of the base, a plurality of clamping assemblies used for clamping a gear sleeve are arranged on the outer side of the center cylinder, the number of the clamping assemblies is larger than two, and the clamping assemblies are evenly distributed in the circumferential direction with the center cylinder as the center. The clamping assembly can slide on the base along the radial direction of the central cylinder and is positioned; the multiple clamping assemblies clamp the gear sleeve through the clamping pieces on the upper side and the lower side, the positions are set according to the tooth shape of the gear sleeve, the clamping pieces can clamp the gear sleeve on the outer side of the gear sleeve and can also clamp the gear sleeve on the inner side of the gear sleeve, the clamping assemblies can slide in the radial direction of the center cylinder, and therefore the clamping assemblies can be suitable for clamping operation of the gear sleeves with different diameters.

Description

Technical Field

[0001] The invention relates to the field of gear sleeve processing, in particular to a gear sleeve processing fixture. Background Art

[0002] The synchronizer sleeve is used in the synchronizer of the gearbox with single cone ring and multiple cone rings. During the sleeve processing, the clamp is required to align and fix it. The traditional sleeve processing mainly realizes the positioning and fixation of the sleeve by expanding the sleeve outward. Since the sleeve is divided into internal spline sleeve and external spline sleeve, the spline teeth of the internal spline sleeve are set on the inner side of the sleeve. At this time, the expansion sleeve is not suitable for the processing of the internal spline sleeve. Another clamp is needed to clamp the internal spline sleeve, which brings inconvenience to the sleeve processing.

[0003] Therefore, it is necessary to design a fixture suitable for processing different gear sleeves. Summary of the invention

[0004] The object of the present invention is to provide a gear sleeve machining fixture to overcome the above-mentioned defects in the prior art.

[0005] A gear sleeve processing fixture according to the present invention comprises a base, a center tube is fixed on the upper end surface of the base, a plurality of clamping assemblies for clamping the gear sleeve are arranged on the outer side of the center tube, the number of the clamping assemblies is greater than two, the plurality of the clamping assemblies are evenly distributed circumferentially with the center tube as the center, and the clamping assemblies can slide and position on the base along the radial direction of the center tube; The clamping assembly includes a movable seat, which is rotatably connected to a screw rod, a positioning ring is fixed on the outer periphery of the screw rod, and two clamping members are slidably connected to the outer periphery of the screw rod, the lower clamping member abuts against the positioning ring, a spring is arranged between the two clamping members, and the upper end of the positioning ring is threadedly connected to a knob abutting against the upper clamping member.

[0006] Through the above technical solution, multiple clamping assemblies clamp the gear sleeve through the clamping members on the upper and lower sides. According to the setting position of the gear sleeve tooth shape, the clamping members can clamp the gear sleeve on the outside or inside of the gear sleeve, and the clamping assembly can slide radially along the center tube, so that the clamping assembly can be suitable for clamping operations of gear sleeves with different diameters.

[0007] In the above technical solution, a mounting groove is provided on the upper end surface of the movable seat, a mounting seat is embedded in the mounting groove, the mounting seat is fixed in the mounting groove by bolts, and the lower end of the screw rod is rotatably connected to the mounting seat.

[0008] The above technical solution makes it easy to replace the mounting seat, thereby facilitating the replacement of the clamping member.

[0009] In the above technical solution, the clamping member includes a clamping positioning wheel and a support ring fixed on the clamping positioning wheel. The support ring is arranged on a side where the two clamping positioning wheels are close to each other, and the upper and lower ends of the spring are respectively arranged in the support rings on the upper and lower sides.

[0010] Through the above technical solution and the setting of the support ring, the side of the gear sleeve without teeth can abut against the outer periphery of the support ring, thereby achieving accurate positioning of the gear sleeve.

[0011] In the above technical scheme, a guide groove that penetrates the moving seat along the moving direction of the moving seat is provided on one side of the moving seat close to the center tube, and a through groove that penetrates the moving seat along the moving direction of the moving seat is connected to the lower side of the guide groove, and a guide seat is slidably connected in the guide groove, and a fixed block is fixed on the lower end surface of the guide seat, and the fixed block is fixed on the upper end surface of the base, and the guide seat and the fixed block are in a "Γ" shape, and an upwardly concave sliding groove is provided on the lower end surface of the guide seat, and the sliding groove is opened at one end away from the center tube, and a threaded block is fixed on the lower side wall of the guide groove, and the threaded block is slidably connected to the sliding groove, and a screw rod that penetrates the threaded block is rotatably connected in the sliding groove, and the screw rod is threadedly connected to the threaded block.

[0012] Through the above technical solution, the rotation of the screw rod causes the threaded block to move along its length direction, thereby driving the movable seat to slide along the guide seat. Through the self-locking effect between the screw rod and the threaded block, the movable seat can be positioned on the guide seat when the screw rod stops rotating.

[0013] In the above technical solution, a limiting plate is provided at one end of the guide seat away from the center tube, a limiting block is fixedly provided on one side of the limiting plate close to the guide seat, the limiting block is embedded in the slide groove, the limiting plate and the guide seat are fixedly connected by bolts, the end of the screw rod away from the center tube passes through the limiting plate and is rotatably connected to the limiting plate, and the end of the screw rod close to the center tube is rotatably connected to a side wall of the slide groove close to the center tube.

[0014] Through the above technical solution and the setting of the limit plate, the disassembly and assembly of the guide seat and the screw rod are facilitated.

[0015] In the above technical solution, one end of the guide seat away from the limit plate passes through the peripheral wall of the center tube, one end of the screw rod away from the limit plate extends out of the guide seat and a driven gear is fixed thereon, a transmission shaft is rotatably connected to the inner end face of one side of the guide seat away from the limit plate, a driving gear meshing with the driven gear is fixed on the outer periphery of the transmission shaft, a driven bevel gear is fixed to the end of the transmission shaft away from the guide seat, a cover plate is detachably connected to the upper end face of the center tube, a turntable is provided on the upper side of the cover plate, a bevel gear shaft is fixed in the turntable, the bevel gear shaft passes through the cover plate, and a driving bevel gear meshing with multiple driven bevel gears is fixed to the lower end of the bevel gear shaft.

[0016] Through the above technical solution, when the active bevel gear rotates, multiple screws can be rotated simultaneously, thereby ensuring that multiple moving seats can slide along the guide seat at the same time, thereby ensuring accurate positioning of the gear sleeve.

[0017] The beneficial effects of the present invention are as follows: a plurality of clamping assemblies clamp the gear sleeve through clamping members on the upper and lower sides; according to the setting position of the gear sleeve tooth shape, the clamping members can clamp the gear sleeve on the outside or inside of the gear sleeve, and the clamping assembly can slide radially along the center tube, so that the clamping assembly can be suitable for clamping operations of gear sleeves of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the working state of the present invention; Figure 2 is an exploded view of the present invention; Figure 3 The present invention Figure 1 The enlarged schematic diagram at A in the middle; Figure 4 It is a structural schematic diagram of the clamping assembly in the present invention; Figure 5 is an exploded view of the clamping assembly of the present invention; Figure 6 It is a structural schematic diagram of the guide seat and the screw rod in the present invention; Figure 7 It is a structural schematic diagram of the chute in the present invention.

[0019] In the figure: 10. Base; 20. Moving seat; 201. Mounting groove; 202. Guide groove; 203. Through groove; 21. Mounting seat; 22. Clamping and positioning wheel; 221. Support ring; 23. Knob; 24. Screw; 25. Spring; 26. Positioning ring; 27. Threaded block; 30. Guide seat; 301. Slide groove; 31. Screw; 32. Driven gear; 33. Limit plate; 34. Limit block; 35. Fixed block; 40. Center tube; 41. Cover plate; 42. Turntable; 43. Bevel gear shaft; 44. Driving bevel gear; 50. Transmission shaft; 51. Driving gear; 52. Driven bevel gear. DETAILED DESCRIPTION

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of simplifying the description of the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described in conjunction with the embodiments below. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention. As used herein, the terms up, down and left, right are not limited to their strict geometric definitions, but include reasonable and inconsistent tolerances for machining or human errors. The specific features of the gear sleeve processing fixture are described in detail below: An embodiment of the present invention: Reference Figure 1-Figure 7 The present invention provides a gear sleeve processing fixture, comprising a base 10, a center tube 40 is fixed on the upper end surface of the base 10, a plurality of clamping assemblies for clamping the gear sleeve are arranged on the outer side of the center tube 40, the number of the clamping assemblies is greater than two, and in this embodiment, three clamping assemblies are arranged, and the three clamping assemblies are evenly distributed circumferentially with the center tube 40 as the center, and the clamping assemblies can slide and position on the base 10 along the radial direction of the center tube 40; The clamping assembly includes a movable seat 20, which is rotatably connected to a screw rod 24, a positioning ring 26 is fixed on the outer periphery of the screw rod 24, two clamping members are slidably connected to the outer periphery of the screw rod 24, the lower clamping member abuts against the positioning ring 26, a spring 25 is arranged between the two clamping members, and the upper end of the positioning ring 26 is threadedly connected to a knob 23 abutting against the upper clamping member.

[0022] Reference Figure 5 The upper end surface of the movable seat 20 is provided with a mounting groove 201, and a mounting seat 21 is embedded in the mounting groove 201. The mounting seat 21 is fixed in the mounting groove 201 by bolts. The lower end of the screw rod 24 is rotatably connected to the mounting seat 21. The clamping member includes a clamping positioning wheel 22 and a support ring 221 fixed on the clamping positioning wheel 22. The support ring 221 is arranged on a side where the two clamping positioning wheels 22 are close to each other. The upper and lower ends of the spring 25 are respectively arranged in the support rings 221 on the upper and lower sides.

[0023] Reference Figure 5-7A guide groove 202 is provided on one side of the movable seat 20 close to the central tube 40, and the guide groove 202 penetrates the movable seat 20 along the moving direction of the movable seat 20. A through groove 203 is provided on the lower side of the guide groove 202, and penetrates the movable seat 20 along the moving direction of the movable seat 20. A guide seat 30 is slidably connected in the guide groove 202. A fixed block 35 is fixed on the lower end surface of the guide seat 30. The fixed block 35 is fixed on the upper end surface of the base 10. The guide seat 30 and the fixed block 35 are in a "Γ" shape. A sliding groove 301 which is recessed upward is provided on the lower end surface of the guide seat 30. The sliding groove 301 is opened at one end away from the central tube 40. A threaded block 27 is fixed on the lower side wall of the guide groove 202. The threaded block 27 is slidably connected to the sliding groove 301. A screw rod 31 which penetrates the threaded block 27 is rotatably connected in the sliding groove 301, and the screw rod 31 is threadedly connected to the threaded block 27.

[0024] Reference Figure 5 , Figure 7 A limiting plate 33 is provided at one end of the guide seat 30 away from the center tube 40, and a limiting block 34 is fixedly provided on a side of the limiting plate 33 close to the guide seat 30. The limiting block 34 is embedded in the slide groove 301. The limiting plate 33 and the guide seat 30 are fixedly connected by bolts. The end of the screw rod 31 away from the center tube 40 passes through the limiting plate 33 and is rotatably connected to the limiting plate 33. The end of the screw rod 31 close to the center tube 40 is rotatably connected to a side wall of the slide groove 301 close to the center tube 40.

[0025] Reference Figure 2 , Figure 3 , Figure 6 The end of the guide seat 30 away from the limiting plate 33 passes through the peripheral wall of the center cylinder 40, the end of the screw rod 31 away from the limiting plate 33 extends out of the guide seat 30 and is fixed with a driven gear 32, the end face of the guide seat 30 away from the limiting plate 33 is rotatably connected with a transmission shaft 50, a driving gear 51 meshing with the driven gear 32 is fixedly arranged on the outer periphery of the transmission shaft 50, a driven bevel gear 52 is fixed to the end of the transmission shaft 50 away from the guide seat 30, the upper end face of the center cylinder 40 is detachably connected with a cover plate 41, a turntable 42 is arranged on the upper side of the cover plate 41, a bevel gear shaft 43 is fixed in the turntable 42, the bevel gear shaft 43 passes through the cover plate 41, and a driving bevel gear 44 meshing with the three driven bevel gears 52 is fixed at the lower end of the bevel gear shaft 43 (the tooth profiles on the outer periphery of the driving bevel gear 44, the driven bevel gear 52, the driving gear 51 and the driven gear 32 are not drawn).

[0026] When the present invention is in use, if it is necessary to clamp the internal spline gear sleeve, the cover plate 41 is rotated to rotate the bevel gear shaft 43, thereby driving the active bevel gear 44 to rotate, and then the driven bevel gear 52 to rotate, and then the transmission shaft 50 to rotate, and then the active gear 51 to rotate, thereby driving the driven gear 32 to rotate, thereby rotating the screw rod 31, and then driving the threaded block 27 to move along the screw rod 31, so that the movable seat 20 moves along the guide seat 30, thereby driving the clamping member to move radially along the center tube 40 to the outside of the internal spline gear sleeve, and then the internal spline gear sleeve is placed between the three clamping components, and the cover plate 41 is reversed to make the three clamping components move in the direction close to the gear sleeve until the lower end face of the internal spline gear sleeve abuts against the upper end face of the clamping positioning wheel 22 on the lower side, and the outer periphery of the internal spline gear sleeve abuts against the outer periphery of the support ring 221 on the lower side, and then the rotation of the cover plate 41 is stopped.

[0027] Then, the knob 23 is turned to make the upper clamping and positioning wheel 22 overcome the elastic force of the spring 25 and move downward until the clamping and positioning wheels 22 on both sides clamp the outer periphery of the inner spline sleeve, thereby achieving the clamping and positioning of the inner spline sleeve.

[0028] When clamping and positioning the external spline sleeve, according to the above steps, the clamping assembly is placed inside the external spline sleeve, and the outer periphery of the external spline sleeve is clamped by the clamping member.

[0029] It will be clear to those skilled in the art that various modifications to the above embodiments may be made without departing from the overall spirit and concept of the present invention. All of these modifications fall within the scope of protection of the present invention. The protection scheme of the present invention shall be subject to the claims attached to the present invention.

Claims

1. A gear sleeve processing fixture, comprising a base (10), characterized in that: A center tube (40) is fixed to the upper end surface of the base (10), and a plurality of clamping assemblies for clamping the gear sleeve are arranged outside the center tube (40), the number of the clamping assemblies is greater than two, and the plurality of clamping assemblies are evenly distributed in the circumferential direction with the center tube (40) as the center, and the clamping assemblies can slide and be positioned on the base (10) along the radial direction of the center tube (40); The clamping assembly comprises a movable seat (20), a screw rod (24) being rotatably connected to the movable seat (20), a positioning ring (26) being fixed on the outer periphery of the screw rod (24), two clamping members being slidably connected to the outer periphery of the screw rod (24), the lower clamping member abutting against the positioning ring (26), a spring (25) being arranged between the two clamping members, and a knob (23) abutting against the upper clamping member being threadedly connected to the upper end of the positioning ring (26).

2. A gear sleeve processing fixture according to claim 1, characterized in that: The upper end surface of the movable seat (20) is provided with a mounting groove (201), a mounting seat (21) is embedded in the mounting groove (201), the mounting seat (21) is fixed in the mounting groove (201) by bolts, and the lower end of the screw rod (24) is rotatably connected to the mounting seat (21).

3. The gear sleeve processing fixture according to claim 1, characterized in that: The clamping member comprises a clamping positioning wheel (22) and a support ring (221) fixed on the clamping positioning wheel (22); the support ring (221) is arranged on a surface of the two clamping positioning wheels (22) close to each other; and the upper and lower ends of the spring (25) are respectively arranged in the support ring (221) on the upper and lower sides.

4. The gear sleeve processing fixture according to claim 1, characterized in that: A guide groove (202) is provided on one side of the movable seat (20) close to the central tube (40) and penetrates the movable seat (20) along the moving direction of the movable seat (20); a through groove (203) is provided on the lower side of the guide groove (202) and penetrates the movable seat (20) along the moving direction of the movable seat (20); a guide seat (30) is slidably connected in the guide groove (202); a fixing block (35) is fixed on the lower end surface of the guide seat (30); the fixing block (35) is fixed on the upper end surface of the base (10); The guide seat (30) and the fixed block (35) are in a "Γ" shape. The lower end surface of the guide seat (30) is provided with a slide groove (301) which is recessed upward. The slide groove (301) is opened at one end away from the center tube (40). A threaded block (27) is fixedly provided on the lower side wall of the guide groove (202). The threaded block (27) is slidably connected to the slide groove (301). A screw rod (31) which passes through the threaded block (27) is rotatably connected in the slide groove (301). The screw rod (31) is threadedly connected to the threaded block (27).

5. A gear sleeve machining fixture according to claim 4, characterized in that: A limiting plate (33) is provided at one end of the guide seat (30) away from the center tube (40); a limiting block (34) is fixedly provided on one side of the limiting plate (33) close to the guide seat (30); the limiting block (34) is embedded in the slide groove (301); the limiting plate (33) and the guide seat (30) are fixedly connected by bolts; an end of the screw rod (31) away from the center tube (40) passes through the limiting plate (33) and is rotatably connected to the limiting plate (33); an end of the screw rod (31) close to the center tube (40) is rotatably connected to a side wall of the slide groove (301) close to the center tube (40).

6. A gear sleeve machining fixture according to claim 5, characterized in that: One end of the guide seat (30) away from the limiting plate (33) penetrates the peripheral wall of the central tube (40); one end of the screw rod (31) away from the limiting plate (33) extends out of the guide seat (30) and a driven gear (32) is fixed thereon; a transmission shaft (50) is rotatably connected to the inner end surface of one side of the guide seat (30) away from the limiting plate (33); a driving gear (51) meshing with the driven gear (32) is fixedly provided on the outer periphery of the transmission shaft (50); A driven bevel gear (52) is fixed to one end of the shaft (50) away from the guide seat (30); a cover plate (41) is detachably connected to the upper end surface of the center tube (40); a rotating disk (42) is arranged on the upper side of the cover plate (41); a bevel gear shaft (43) is fixed inside the rotating disk (42); the bevel gear shaft (43) passes through the cover plate (41); and a driving bevel gear (44) meshing with a plurality of driven bevel gears (52) is fixed to the lower end of the bevel gear shaft (43).

Images