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CN-121972735-A - Accurate positioning thin-wall gear machining tool

CN121972735ACN 121972735 ACN121972735 ACN 121972735ACN-121972735-A

Abstract

The invention discloses a precise positioning thin-wall gear machining tool, which relates to the technical field of gear machining and comprises a bottom plate, wherein a vertical plate is fixed on the bottom plate, a machining mechanism is arranged on the vertical plate and used for machining a thin-wall gear body, an inner supporting mechanism is also fixed on the bottom plate, an outer clamping mechanism is also arranged on the inner supporting mechanism, and the outer clamping mechanism and the inner supporting mechanism are cooperatively matched to realize the inner and outer clamping positioning effects of the thin-wall gear bodies with different sizes. This accurate location thin wall gear processing frock supports thin wall gear body inner wall through interior mechanism that props, and outer clamp mechanism carries out the centre gripping to the gear outer wall, and inside and outside cooperation forms two-way location, effectively disperses centre gripping effort, has avoided the concentrated problem of atress that single centre gripping mode leads to, has fundamentally reduced the deformation that the thin wall gear produced because of the centre gripping atress, ensures gear profile of tooth, tooth to machining precision, promotes product processingquality, reduces the part disability rate.

Inventors

  • LI HONGBIN

Assignees

  • 盐城锦易工业装备有限公司

Dates

Publication Date
20260505
Application Date
20260401

Claims (10)

  1. 1. The accurate positioning thin-wall gear machining tool comprises a bottom plate (1) and is characterized in that a vertical plate (2) is fixed on the bottom plate (1), a machining mechanism (3) is installed on the vertical plate (2), the machining mechanism (3) is used for machining a thin-wall gear body (6), an inner supporting mechanism (5) is further fixed on the bottom plate (1), an outer clamping mechanism (7) is further installed on the inner supporting mechanism (5), the outer clamping mechanism (7) and the inner supporting mechanism (5) cooperate to achieve the inner and outer clamping positioning effects of the thin-wall gear body (6) with different sizes, a self-locking mechanism (8) is further installed on the inner supporting mechanism (5), and the self-locking mechanism (8) is used for self-locking of the inner supporting mechanism (5).
  2. 2. The precise positioning thin-wall gear machining tool of claim 1, wherein the inner supporting mechanism (5) comprises a motor (501) fixed on the upper end face of the bottom plate (1), a disc (502) is fixed at the output end of the motor (501), an air cylinder (503) is fixed at the upper end of the disc (502), a fixed disc (504) is fixed at the output end of the air cylinder (503), and a first movable ring (505) is slidably connected to the outer side of the fixed disc (504).
  3. 3. The precise positioning thin-wall gear machining tool of claim 2, wherein the fixed disc (504) and one end of the first spring (506) are fixed with each other, the other end of the first spring (506) is fixed on the movable disc (507), and a second movable ring (508) is slidably connected to the outer side of the movable disc (507).
  4. 4. The precise positioning thin-wall gear machining tool according to claim 3, wherein the movable disc (507) is rotationally connected with one end of the first connecting rod (509), the other end of the first connecting rod (509) is rotationally connected to the movable block (510), the first connecting rod (509) and the movable block (510) are distributed at equal angles relative to the center of the movable disc (507), meanwhile, sliding connection is arranged between the movable block (510) and the square rod (511), and the square rod (511) is fixed at the outer side of the mounting disc (512) at equal angles.
  5. 5. The precise positioning thin-wall gear machining tool of claim 4, wherein the moving block (510) is fixedly provided with a mounting frame (514), the mounting frame (514) is in sliding connection with the inner supporting plate (515), and the mounting frame (514) is locked with the inner supporting plate (515) through bolts.
  6. 6. The precise positioning thin-wall gear machining tool of claim 5, wherein the mounting plate (512) is fixed with one end of the vertical rod (513), the other end of the vertical rod (513) is fixed on the disc (502), the vertical rod (513) is symmetrically distributed left and right with respect to the center line of the disc (502), and meanwhile, the vertical rod (513) is in sliding connection with the fixed plate (504) and the movable plate (507).
  7. 7. The precise positioning thin-wall gear machining tool according to claim 6, wherein the outer clamping mechanism (7) comprises a fixed rod (701) fixed on the outer side of the first movable ring (505) at equal angles, one end of the fixed rod (701) is rotationally connected with one end of the second connecting rod (702), the other end of the second connecting rod (702) is rotationally connected with the sliding block (703), meanwhile, the sliding block (703) is in sliding connection with the transverse rod (704), and the transverse rod (704) is fixed on the outer side of the second movable ring (508) at equal angles.
  8. 8. The precise positioning thin-wall gear machining tool of claim 7, wherein the sliding block (703) is fixedly provided with a sliding rod (705), the sliding rod (705) is in sliding connection with the sleeve (706), the sleeve (706) is fixedly provided with a guide rod (707), the guide rod (707) is in sliding connection with the fixed cylinder (4), the sleeve (706) is also in bearing connection with a clamping rod (708), and the clamping rods (708) and the inner supporting plates (515) are distributed in a staggered mode.
  9. 9. The precise positioning thin-wall gear machining tool of claim 8, wherein the self-locking mechanism (8) comprises a bevel board (801) fixed on a sliding block (703), the bevel board (801) is in sliding connection with a push rod (802), the push rod (802) is fixed on the arc board (803), meanwhile, the arc board (803) and a latch board (804) are mutually fixed, the latch board (804) is distributed at equal angles with respect to the center of a mounting disc (512), the latch board (804) and a latch block (805) form a clamping connection, and the latch block (805) is fixed on the lower end face of the moving block (510).
  10. 10. The precise positioning thin-wall gear machining tool of claim 9, wherein the latch plate (804) is in sliding connection with the round rod (806), the round rod (806) is fixed on the lower end surfaces of the square rod (511) and the mounting plate (512), the latch plate (804) is mutually fixed with one end of the second spring (807), and the other end of the second spring (807) is fixed on the lower end surfaces of the square rod (511) and the mounting plate (512).

Description

Accurate positioning thin-wall gear machining tool Technical Field The invention relates to the technical field of gear machining, in particular to a precise positioning thin-wall gear machining tool. Background The thin-wall gear is used as an indispensable key part in the mechanical transmission field, is widely applied to high-end equipment such as aerospace, automobile manufacturing, precision instruments and the like, and the machining precision directly determines the running stability, transmission efficiency and service life of the whole transmission system, however, the thin-wall gear has the characteristics of thin wall thickness, poor rigidity and fragile structure, deformation is easily generated in the machining process due to improper clamping mode and insufficient positioning precision, the tooth shape and the tooth direction error of the gear exceed the standard, the machining quality of products is seriously influenced, and even parts are scrapped. At present, the existing thin-wall gear processing tool mostly adopts a single internal supporting type or external clamping type clamping structure, so that stable positioning of a gear is difficult to realize, wherein the single internal supporting type clamping only supports the inner wall of the gear, the clamping points are concentrated in stress, local deformation of the inner wall of the gear is easy to occur, and radial movement of the gear cannot be limited; Meanwhile, the existing fixture is fixed in clamping range, thin-wall gears with different inner diameters and different specifications are difficult to adapt, universality is poor, the fixture is required to be debugged and positioned again when being replaced, operation is complex, machining efficiency is greatly reduced, in addition, part of the fixture lacks an effective self-locking mechanism, in the machining process, the clamping structure is easy to loosen along with the rotation of a motor driving gear or the cutting acting force of the machining mechanism, gear positioning offset is caused, machining errors are further aggravated, and in the process of adjusting the machining position by rotating the gear, the clamping mechanism is easy to synchronously rotate along with the gear, interference is generated with the machining mechanism, and smooth proceeding of the machining process is affected. Disclosure of Invention The invention aims to provide a precise positioning thin-wall gear machining tool for solving the problems in the background technology. In order to achieve the aim, the technical scheme is that the accurate positioning thin-wall gear machining tool comprises a bottom plate, wherein a vertical plate is fixed on the bottom plate, a machining mechanism is arranged on the vertical plate and used for machining a thin-wall gear body, an inner supporting mechanism is further fixed on the bottom plate, an outer clamping mechanism is further arranged on the inner supporting mechanism, the outer clamping mechanism and the inner supporting mechanism are cooperatively matched to achieve the inner and outer clamping positioning effects of the thin-wall gear bodies with different sizes, and a self-locking mechanism is further arranged on the inner supporting mechanism and used for self-locking of the inner supporting mechanism. Preferably, the internal stay mechanism is including fixing the motor at the bottom plate up end, and the output of motor is fixed with the disc to the disc upper end is fixed with the cylinder, and the output of cylinder is fixed with the fixed disk simultaneously, the fixed disk outside sliding connection has first expansion ring, can drive the disc through the motor and rotate to guarantee the normal clear of follow-up thin wall gear body processing, through the cylinder is flexible, can drive the fixed disk and remove, thereby provide basic effort for the centre gripping of follow-up thin wall gear body is fixed, and through the slip effect between fixed disk and the first expansion ring, can make the fixed disk rotate relative first expansion ring, thereby provide basic guarantee for realizing the normal processing of thin wall gear body. Preferably, the fixed disk is fixed with one end of the first spring, the other end of the first spring is fixed on the movable disk, the second movable ring is slidably connected to the outer side of the movable disk, and the fixed disk can move relative to the movable disk through the elastic supporting function of the first spring, so that basic assurance is provided for realizing the clamping fixation of the thin-wall gear body, and the movable disk can rotate relative to the second movable ring through the sliding function between the movable disk and the second movable ring, so that the normal operation of the device is guaranteed. Preferably, the movable disc is rotationally connected with one end of the first connecting rod, the other end of the first connecting rod is rotationally connected to the mov