Gear shaving tool

Abstract

The utility model belongs to the technical field of gear machining, and particularly relates to a gear shaving tool which comprises a base and a mounting plate. The mounting plate is arranged over the base through a lifting part, a mounting seat is arranged in the middle of the mounting plate, a sliding groove is formed in the mounting plate, mounting frames are arranged on the two sides of the mounting seat respectively and are in sliding connection with the sliding groove, and a first driving roller is rotationally connected to the top of each mounting frame; and the two mounting frames realize relative movement and are locked through the adjusting piece.

Description

TECHNICAL FIELD

[0001] The utility model belongs to gear machining technical field, concretely relates to a gear shaving frock. BACKGROUND

[0002] The basic principle of shaving machining is to use a shaving cutter (also known as a shaving gear) engaged with the gear to be machined, the shaving cutter rotates with the gear, and the shaving cutter reciprocates along the gear axis. Due to the relative sliding between the shaving cutter and the gear, the shaving cutter will cut off a very thin layer of material on the gear tooth surface, thereby correcting the gear tooth profile error and tooth surface roughness; before machining, the gear is usually matched with a clamp, two clamps are inserted into the gear hole from both ends of the gear, the gear is tightly fixed after clamping, and the clamps are aligned with the center of the gear. The shaving cutter is used to process the positioned gear.

[0003] The patent with publication number CN217290753U discloses a shaving auxiliary bracket, which solves the problem of labor-intensive artificial lifting of the clamp for large gears and easy displacement of the center by setting the bracket and the adjusting block. However, in the above-mentioned scheme, only different size arc-shaped openings are provided in the adjusting block to adapt to different clamp outer diameters, the adaptability is low, and when the opening and the clamp outer diameter cannot perfectly fit, the centering precision is reduced during the centering process. UTILITY MODEL CONTENT

[0004] Based on the problems mentioned in the above background technology, the utility model provides a gear shaving frock.

[0005] The technical scheme adopted by the utility model is as follows: a gear shaving frock, comprising a base and a mounting plate, the base is provided with a lifting piece; the mounting plate is arranged directly above the base through the lifting piece, a mounting seat is arranged in the middle of the mounting plate, a sliding groove is formed in the mounting plate, mounting racks are arranged on both sides of the mounting seat and are connected with the sliding groove in a sliding manner, and a first driving roller is rotatably connected to the top of each mounting rack; the two mounting racks are connected through an adjusting piece to realize relative movement and locking.

[0006] Further, the adjusting piece comprises a threaded rod, the middle part of the threaded rod is rotatably arranged on the mounting seat, the threads of the two ends of the threaded rod are opposite, threaded holes are formed in the two mounting racks and are threadedly connected to the two ends of the threaded rod.

[0007] Further, a second driving roller is rotatably arranged in the mounting seat.

[0008] Further, the base is a box body, the lifting piece is installed in the box body, and the area of the mounting plate is greater than the opening area of the box body.

[0009] Further, the lifting piece is a hydraulic cylinder, and the output shaft is connected to the bottom of the mounting plate.

[0010] Further, the base is provided with connecting blocks on both sides, and connecting holes are formed in the connecting blocks.

[0011] Further, the threaded rod is provided with a hand wheel at one end.

[0012] The utility model discloses beneficial effects:

[0013] By setting the lifting piece and mounting plate on the base, and configuring the sliding groove and the mounting frame slidingly connected therewith on the mounting plate, the relative movement and locking of the two mounting frames are realized in combination with the adjusting piece, the centering accuracy and operation convenience during large gear machining are significantly improved. Compared with the traditional mode of relying on arc-shaped opening adaptors of different sizes to adapt to the outer diameter of the clamp, the tooling adapts to the outer diameter of any clamp through the relative movement and locking of the two mounting frames, not only greatly improves the adaptability to gears of different sizes, but also effectively prevents the problem of top alignment shaking caused by imperfect fitting of the opening and the outer diameter of the clamp, thereby ensuring the high-precision centering process. Secondly, the rotary connection of the first driving roller facilitates the rotation of the workpiece and the gear shaving wheel during gear shaving machining; the setting of the lifting piece also facilitates height adjustment and matching of different workpieces. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model can be further illustrated by the non-limiting embodiments shown in the drawings;

[0015] Fig. 1 The utility model is a schematic diagram;

[0016] Fig. 2 The utility model is a schematic diagram of two tooling installations;

[0017] The drawings are labeled as follows:

[0018] Base 1, hydraulic cylinder 11, connecting block 12, connecting hole 13, mounting plate 2, sliding groove 21, mounting seat 3, second driving roller 31, mounting frame 4, first driving roller 41, threaded rod 5, hand wheel 51. DETAILED DESCRIPTION

[0019] As Figs. 1-2 shown, a gear shaving tooling includes a base 1 and a mounting plate 2, the base 1 is provided with a lifting piece; the mounting plate 2 is arranged above the base 1 through the lifting piece, the mounting plate 2 is provided with a mounting seat 3 in the middle, the mounting plate 2 is provided with a sliding groove 21, and the mounting frame 4 is arranged on both sides of the mounting seat 3 and is slidingly connected with the sliding groove 21, and the first driving roller 41 is rotatably connected to the top of the mounting frame 4; the two mounting frames 4 are relatively moved and locked through the adjusting piece.

[0020] Adopting the technical scheme, the lifting piece and the mounting plate 2 are arranged on the base 1, the mounting rack 4 is arranged on the mounting plate 2 and is in sliding connection with the sliding groove 21, the relative movement of the two mounting racks 4 is realized and locked by the adjusting piece, and the centering accuracy and operation convenience during large gear machining are significantly improved. Compared with the traditional mode of only relying on arc-shaped openings with different sizes to adapt to the outer diameter of the fixture, the present tooling adapts to the outer diameter of any fixture through the relative movement and locking of the two mounting racks 4, which not only greatly improves the adaptability to gears with different sizes, but also effectively prevents the problem of top alignment shaking caused by imperfect fitting of the opening and the outer diameter of the fixture, thereby ensuring a high-precision centering process. In addition, the rotary connection of the first driving roller 41 facilitates the rotation of the workpiece together with the shaving gear during shaving machining, and the arrangement of the lifting piece also facilitates height adjustment and matching of different workpieces.

[0021] In specific use, the number of toolings used can be determined according to the workpiece to be machined, for example, two toolings are used to support the two ends of the fixture when machining disc parts such as gears, which is more stable.

[0022] As a preferred scheme, the adjusting piece includes a threaded rod 5, the middle part of the threaded rod 5 is rotatably arranged on the mounting seat 3, the threads on the two ends of the threaded rod 5 are opposite, and threaded holes are formed in the two mounting racks 4 and are threadedly connected to the two ends of the threaded rod 5. Since the mounting rack 4 is in sliding connection with the mounting plate 2 through the sliding groove 21 to realize limiting, the rotation of the threaded rod 5 drives the two mounting racks 4 to move close to and away from each other synchronously, and the fixture with different outer diameters is adapted.

[0023] As a preferred scheme, the second driving roller 31 is rotatably arranged in the mounting seat 3. By arranging the second driving roller 31 in the mounting seat 3, three-point support is realized, which is stable in support and limiting, and does not affect the rotation of the shaving machining.

[0024] As a preferred scheme, the base 1 is a box body, the lifting piece is arranged in the box body, and the area of the mounting plate 2 is greater than the opening area of the box body. Debris is prevented from falling in, and in order to better lift the piece, a protection plate can also be arranged around the outer periphery of the box body, so that even if the mounting plate 2 rises, the opening of the box body is not exposed.

[0025] As a preferred scheme, the lifting piece is a hydraulic cylinder 11, and the output shaft is connected to the bottom of the mounting plate 2. The lifting height is controlled by the hydraulic cylinder 11 to determine the alignment of the workpiece and the top.

[0026] As a preferred scheme, the base 1 is provided with a connecting block 12 on both sides, and a connecting hole 13 is formed in the connecting block 12. Through the design of the connecting block 12 and the connecting hole 13, the tooling can be conveniently installed at the corresponding position of the shaving machine.

[0027] As a preferred solution, the threaded rod 5 is provided with a hand wheel 51 at one end. By the provision of the hand wheel 51, rotation of the threaded rod 5 is facilitated, enabling relative movement of the two mounting frames 4 to clamp the shaving cutter jig.

[0028] The utility model has been described in detail above. The description of the specific embodiment is only used for helping understanding the method and the core idea of the utility model. It should be pointed out that, for ordinary skilled person in the art, without departing from the principle of the utility model, the utility model can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the utility model claim.

Claims

1. A gear shaving tool characterized by: The utility model relates to a kind of lifting device, including Base (1), be provided with lifting spare on the base (1); Mounting plate (2), the mounting plate (2) is set above base (1) by lifting spare, the middle part of the mounting plate (2) is provided with mounting seat (3), the mounting plate (2) is opened in slide groove (21), mounting rack (4) is respectively set in the both sides of mounting seat (3) and the mounting rack (4) is slidably connected with slide groove (21), the first drive roller (41) is rotatably connected in the top of mounting rack (4);Two mounting racks (4) are locked by adjusting spare and realize relative motion.

2. A gear shaving tooling as defined in claim 1, wherein: The adjusting spare includes threaded rod (5), the middle part of the threaded rod (5) is rotatably arranged on mounting seat (3), the threaded rod (5) two ends screw thread line is opposite, two the mounting rack (4) is opened in threaded hole and is respectively threadedly connected in the two ends of threaded rod (5).

3. The gear shaving tooling of claim 1, wherein: The second drive roller (31) is rotatably arranged in the mounting seat (3).

4. The gear shaving tooling of claim 1, wherein: The base (1) is box body, the lifting spare is installed in box body, and the area of mounting plate (2) is greater than the opening area of box body.

5. A gear shaving tooling as claimed in claim 1 or 4, characterized in that: The lifting spare is the output shaft of hydraulic cylinder (11) and is connected with the bottom of mounting plate (2).

6. The gear shaving tool of claim 1, wherein: The base (1) is provided with connecting block (12) on both sides, and the connecting hole (13) is opened in the connecting block (12).

7. A gear shaving tool as defined in claim 2 wherein: One end of the threaded rod (5) is provided with hand wheel (51).

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