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CN-224223315-U - Positioning fixture for numerical control machining of hub

CN224223315UCN 224223315 UCN224223315 UCN 224223315UCN-224223315-U

Abstract

The utility model discloses a positioning fixture for numerical control machining of hubs, which relates to the technical field of hub machining and comprises bases, wherein two groups of bases are arranged, a turnover unit is arranged between the bases in a butt joint mode, a mounting shell is fixedly connected to the turnover unit, the mounting shell is supported by the bases, a mounting cover is fixedly connected to the top of the mounting shell, a positioning unit penetrating through the mounting cover is arranged in the mounting shell, a guide rod penetrating through an arc-shaped guide opening is slidingly connected to the top in the mounting shell, the top of the guide rod extends into the mounting cover and is provided with a guide plate in a butt joint mode, and a positioning part extending out of the mounting cover is fixedly connected to the top of the guide plate. According to the utility model, the installation shell is driven to turn over by the turning-over unit on the base, so that the hub in a positioning state can realize the self turning-down operation under the synchronous turning-over effect, the processed hub can be turned over by turning down the hub, and the manual removal is reduced.

Inventors

  • CHEN JIAN

Assignees

  • 扬州昌泰车业制造有限公司

Dates

Publication Date
20260512
Application Date
20250528

Claims (6)

  1. 1. Positioning fixture for wheel hub numerical control processing, characterized in that includes: the base (400) is provided with two groups, a turnover unit (500) is installed between the bases (400) in a butt joint mode, an installation shell (100) is fixedly connected to the turnover unit (500), the installation shell (100) is supported by the bases (400), an installation cover (200) is fixedly connected to the top of the installation shell (100), and a positioning unit (300) penetrating through the installation cover (200) is arranged in the installation shell (100); The positioning unit (300) comprises a rotary table (301), a rotary shaft (302) is installed in butt joint in the installation shell (100), the rotary table (301) is fixedly connected to the rotary shaft (302), an arc-shaped guide opening (3011) is formed in the rotary table (301), a guide rod (304) penetrating through the arc-shaped guide opening (3011) is slidably connected to the top in the installation shell (100), the top of the guide rod (304) extends into the installation cover (200) and is provided with a guide plate (303) in butt joint, and a positioning part (310) extending out of the installation cover (200) is fixedly connected to the top of the guide plate (303); The overturning unit (500) comprises overturning shafts (501), wherein the overturning shafts (501) are in butt joint with the base (400), shaft bases (502) which are in installation connection with the installation shell (100) are fixedly connected on the overturning shafts (501), the two ends of each overturning shaft (501) extend out of the base (400) and are in butt joint with the corresponding gear (503), two sides of each base (400) are fixedly connected with two hydraulic telescopic cylinders (505), and toothed plates (504) which are meshed with the corresponding gears (503) are in butt joint with the output ends of the two hydraulic telescopic cylinders (505).
  2. 2. The positioning fixture for numerical control machining of hubs according to claim 1, wherein supporting seats (401) are fixedly arranged at four corners of the bottom of the base (400), and mounting holes (4011) are formed in the supporting seats (401).
  3. 3. The positioning fixture for numerical control machining of hubs according to claim 2, wherein the bottoms of two sides of the installation shell (100) are fixedly connected with support battens (101), the top of the installation shell (100) is provided with a first guide opening (1001) communicated with the installation cover (200), and the first guide opening (1001) is penetrated by the guide rod (304).
  4. 4. The positioning fixture for numerical control machining of hubs according to claim 3, wherein the bottom of the installation shell (100) is fixedly connected with a driving unit (600), the driving unit (600) is in transmission connection with the rotating shaft (302), the driving unit (600) comprises a housing (601), the bottom of the installation shell (100) is fixedly connected with the housing (601), a worm gear (602) is abutted to the inside of the housing (601), a worm wheel in the worm gear (602) is installed and connected with the bottom end of the rotating shaft (302), a motor is fixedly connected to the outer side of the housing (601), and the motor is connected with the worm in the worm gear (602).
  5. 5. The positioning fixture for numerical control machining of hubs according to claim 4, wherein the positioning component (310) comprises a mounting frame (314), a second guide opening (2001) is formed in the top of the mounting cover (200), the mounting frame (314) penetrating the second guide opening (2001) is fixedly connected to the top of the guide rod (304), a guide block (313) is slidingly connected to the inside of the mounting frame (314), a first hydraulic telescopic cylinder (311) is fixedly connected to the top of the mounting frame (314), the output end of the first hydraulic telescopic cylinder (311) is connected with the top of the guide block (313) in a mounting mode, and a positioning head (312) is fixedly connected to the inner side of the guide block (313).
  6. 6. The positioning fixture for numerical control machining of hubs according to claim 5, characterized in that a guide groove (305) is fixedly connected to the bottom in the installation shell (100), and a guide block which is installed and connected with the guide plate (303) is connected in the guide groove (305).

Description

Positioning fixture for numerical control machining of hub Technical Field The utility model relates to the technical field of hub machining, in particular to a positioning fixture for numerical control machining of hubs. Background The hub is a key part of vehicles such as automobiles, motorcycles and the like, is mainly used for installing tires and connecting a suspension system, and is generally made of metal materials such as aluminum alloy, steel and the like; in the hub processing process, the hub is fixed by a positioning and clamping device so as to ensure the processing precision and stability; however, the existing hub clamping devices still have the following drawbacks: 1. The traditional clamping device adopts a four-sided manual positioning structure, an operator is required to adjust the clamping parts one by one, so that stress on each part of the hub is uneven, and in the machining process, the hub can generate micro-displacement due to unbalanced stress, the machining quality is affected, and even workpieces are scrapped; 2. After the processing is finished, an operator needs to manually release the clamping state and remove the hub to the carrier, so that the labor intensity is increased, the production efficiency is reduced, and the high-beat requirement of modern manufacturing is difficult to adapt. Disclosure of utility model The utility model aims to provide a positioning fixture for numerical control machining of a hub, which aims to solve the problems in the prior art. The positioning fixture for the numerical control machining of the wheel hub comprises two groups of bases, wherein a turnover unit is arranged between the bases in a butt joint mode, a mounting shell is fixedly connected to the turnover unit, the mounting shell is supported by the bases, a mounting cover is fixedly connected to the top of the mounting shell, a positioning unit penetrating through the mounting cover is arranged in the mounting shell, the positioning unit comprises a rotary disc, a rotating shaft is arranged in the mounting shell in a butt joint mode, the rotary disc is fixedly connected to the rotating shaft, an arc-shaped guide opening is formed in the rotary disc, a guide rod penetrating through the arc-shaped guide opening is slidingly connected to the top of the mounting shell, the top of the guide rod extends into the mounting cover and is in butt joint with a guide plate, a positioning part extending out of the mounting cover is fixedly connected to the top of the guide plate, the turnover unit comprises a turnover shaft, the turnover shaft is in butt joint mode, a shaft seat connected with the mounting shell in a mounting mode is fixedly connected to the turnover shaft seat, two ends of the turnover shaft extend out of the base and are in butt joint mode, two sides of the base are fixedly connected with a second hydraulic telescopic cylinder, and the output end of the second hydraulic telescopic cylinder is in butt joint mode is provided with a toothed plate meshed with the gear. Preferably, the four corners of the bottom of the base are fixedly provided with supporting seats, and the supporting seats are provided with mounting holes. Preferably, the bottoms of the two sides of the installation shell are fixedly connected with support laths, the top of the installation shell is provided with a first guide opening communicated with the installation cover, and the first guide opening is penetrated by the guide rod. Preferably, the bottom of the installation shell is fixedly connected with a driving unit, the driving unit is in transmission connection with the rotating shaft, the driving unit comprises a housing, the bottom of the installation shell is fixedly connected with the housing, the inside of the housing is in butt joint with a worm gear, a worm wheel in the worm gear is in installation connection with the bottom end of the rotating shaft, a motor is fixedly connected with the outer side of the housing, and the motor is connected with the worm in the worm gear. Preferably, the positioning component comprises a mounting frame, a second guide opening is formed in the top of the mounting cover, a mounting frame penetrating through the second guide opening is fixedly connected to the top of the guide rod, a guide block is slidably connected to the inside of the mounting frame, a first hydraulic telescopic cylinder is fixedly connected to the top of the mounting frame, the output end of the first hydraulic telescopic cylinder is connected with the top of the guide block in a mounting mode, and a positioning head is fixedly connected to the inner side of the guide block. Preferably, the bottom in the installation shell is fixedly connected with a guide groove, and a guide block which is connected with the guide plate in an installation way is connected in a sliding way in the guide groove. Compared with the prior art, the utility model has the beneficial effects that: The wheel hub in a positio