CN214212272U

CN214212272U - Lathe fixture for machining automobile parts

Info

Publication number: CN214212272U
Application number: CN202022990956.4U
Authority: CN
Inventors: 雷衍发
Original assignee: Jiahe Seiko Forges & Casts Co ltd
Current assignee: Jiahe Seiko Forges & Casts Co ltd
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-09-17
Anticipated expiration: 2030-12-11

Abstract

The utility model discloses a lathe fixture for automobile part processing, relating to the field of automobile part processing; the device comprises a clamp mounting column connected with the output end of a motor through a main shaft; the working surface of the clamp mounting column is provided with an outer clamp mechanism moving towards the circle center of the clamp mounting column and an inner clamp mechanism moving towards the place far away from the circle center of the clamp mounting column, the inner clamp mechanism is mounted on a sliding plate, the bottom of the sliding plate is connected with a mounting groove in the clamp mounting column in a sliding mode through a lifting mechanism, the inner clamp mechanism comprises a gear rotating shaft, a gear, a rack, an inner clamping arc-shaped block and a first motor, the first motor is mounted in the sliding plate, and the output end of the first motor is connected with the gear through the gear rotating shaft; through setting up interior anchor clamps mechanism and can carry out the centre gripping to the work piece inner wall, the rack is connected with gear engagement has better auto-lock nature moreover to thereby solved the in-process of centre gripping because the vibrations that processing produced make the work piece not hard up, lead to the problem of work piece damage.

Description

Lathe fixture for machining automobile parts

Technical Field

The utility model relates to an auto parts machining field specifically is a lathe fixture for auto parts machining.

Background

The production of an automobile needs a plurality of parts, in the process of machining a part of the part needing a lathe, the part is inconvenient to clamp because the outer wall of the part is not convenient to clamp, and the inner hole wall can be clamped from the inner hole because the surface roughness is relatively low, but the clamp used for clamping by the existing lathe clamp usually has no form which can clamp the inner hole of a workpiece, or the workpiece is loosened due to vibration generated by machining in the process of clamping, so that the workpiece is damaged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a turning attachment for auto parts machining to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a lathe fixture for machining automobile parts comprises a fixture mounting column connected with the output end of a motor through a main shaft; the working surface of the clamp mounting column is provided with an outer clamp mechanism moving towards the center of the clamp mounting column and an inner clamp mechanism moving away from the center of the clamp mounting column, the inner clamp mechanism is arranged on a sliding plate, the bottom of the sliding plate is connected with the mounting groove in the clamp mounting column in a sliding way through a lifting mechanism, the inner clamp mechanism comprises a gear rotating shaft, a gear, a rack, an inner clamping arc-shaped block and a first motor, the first motor is arranged in the sliding plate, the output end of the first motor is connected with the gear through a gear rotating shaft, three racks are arranged on the periphery of the gear at equal intervals along the circumferential direction, the side wall of the rack is connected with the gear in a meshed mode, an inner clamping arc-shaped block is arranged at the end portion of the side wall of the rack, the bottom of the inner clamping arc-shaped block is connected with a first sliding rail arranged on the sliding plate in a sliding mode through a sliding block, and the direction of the first sliding rail is the same as the motion track of the rack.

As a further aspect of the present invention: outer anchor clamps mechanism includes No. two slide rails and outer clamp splice, outer clamp splice has laid threely, every along anchor clamps erection column circumferencial direction equidistance outer clamp splice is located between two racks, and is three outer clamp splice bottom all is through slider and seting up No. two slide rail constant speed syntropy sliding connection on the anchor clamps erection column.

As a further aspect of the present invention: the working surface of the outer clamping block is an arc-shaped part protruding outwards.

As a further aspect of the present invention: the lifting mechanism comprises a second motor, three screw rods and synchronous belts, the three screw rods are arranged at equal intervals along the circumferential direction of the gear, one end of each screw rod is rotatably connected with the clamp mounting column, the other end of each screw rod is inserted into the sliding plate and is in threaded connection with the sliding plate, every two adjacent screw rods are connected through the synchronous belts, and one of the screw rods is connected with the output end of the second motor arranged in the clamp mounting column.

As a further aspect of the present invention: one side that the gear was kept away from to the rack still is equipped with spacing subassembly, spacing subassembly includes limiting plate, articulated slab, connecting block, articulated seat, telescopic link and spring, limiting plate and backup pad interval set up and install on the sliding plate, wherein the outer wall and the rack contact of limiting plate, bottom and sliding plate sliding connection, be equipped with the telescopic link for extending structure between limiting plate and the backup pad, the both sides of telescopic link all are connected with the connecting block through the spring, the bilateral symmetry of connecting block articulates there are two articulated slabs, the tip of articulated slab articulates on articulated seat, articulated seat is installed respectively on the inner wall of limiting plate and backup pad, still set up No. three slide rails with connecting block bottom slider sliding connection on the sliding plate.

Compared with the prior art, the beneficial effects of the utility model are that:

through setting up interior anchor clamps mechanism and can carrying out the centre gripping to the work piece inner wall, avoid carrying out the in-process of turning because the centre gripping outer wall and damage the work piece outer wall, rack and gear engagement are connected moreover and have better auto-lock nature to thereby solved the in-process of centre gripping because the vibrations that processing produced make the work piece not hard up, lead to the problem that the work piece damaged.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a side view of the present invention.

Fig. 3 is a partially enlarged view of a portion a in fig. 1.

Notations for reference numerals: the clamp mounting column comprises a clamp mounting column 1, a second sliding rail 2, an outer clamping block 3, a sliding plate 4, a first sliding rail 5, an inner clamping arc-shaped block 6, a rack 7, a limiting component 8, a gear 9, a gear rotating shaft 10, a limiting plate 11, a hinged plate 13, a connecting block 14, a hinged seat 15, a telescopic rod 16, a spring 17, a third sliding rail 18, a main shaft 19, a screw rod 20, a synchronous belt 21, a first motor 22, a second motor 23 and a supporting plate 24.

Detailed Description

Referring to fig. 1-2, in an embodiment of the present invention, a lathe fixture for machining automobile parts includes a fixture mounting post 1 connected to an output end of a motor through a main shaft 19; the working surface of the clamp mounting column 1 is provided with an outer clamp mechanism moving towards the center of the clamp mounting column 1 and an inner clamp mechanism moving away from the center of the clamp mounting column 1, the inner clamp mechanism is mounted on a sliding plate 4, the bottom of the sliding plate 4 is connected with a mounting groove in the clamp mounting column 1 in a sliding manner through a lifting mechanism, the inner clamp mechanism comprises a gear rotating shaft 10, a gear 9, a rack 7, an inner clamping arc-shaped block 6 and a first motor 22, the first motor 22 is mounted in the sliding plate 4, the output end of the first motor is connected with the gear 9 through the gear rotating shaft 10, three racks 7 are distributed on the periphery of the gear 9 at equal intervals along the circumferential direction, the side wall of each rack 7 is connected with the gear 9 in a meshing manner, the end part of each rack is provided with the inner clamping arc-shaped block 6, and the bottom of the inner clamping arc-shaped block 6 is connected with a sliding rail 5 arranged on the sliding plate 4 through a sliding block, the direction of the first sliding rail 5 is the same as the motion track of the rack 7. When the hole of work piece is carried out the centre gripping in needs, put the hole of work piece between three interior double-layered arc piece 6, then a motor 22 drive gear pivot 10, gear pivot 10 drives gear 9 and rotates, thereby three rack 7 can be at a motor 22 positive reverse work reciprocating motion, thereby can fix the work piece hole through interior double-layered arc piece 6, and rack 7 is connected with the meshing of gear 9 and has better auto-lock nature, thereby it makes the work piece not hard up because the vibrations that processing produced at the in-process of centre gripping to have solved, thereby the problem that leads to the work piece to damage.

In this embodiment, outer anchor clamps mechanism includes No. two slide rails 2 and outer clamp splice 3, outer clamp splice 3 has laid threely, every along 1 circumferencial direction equidistance of anchor clamps erection column outer clamp splice 3 is located between two racks 7, and is three outer clamp splice 3 bottom all is through slider and the equidirectional sliding connection of No. two slide rails 2 constant speeds of seting up on anchor clamps erection column 1. This is a clamping mechanism for clamping a workpiece in the prior art, and thus the components for driving the outer clamping block 3 will not be described in detail.

Preferably, the working surface of the outer clamping block 3 is an arc-shaped part protruding outwards. The clamping working surface of the workpiece can be increased.

Referring to fig. 1-2, in another embodiment of the present invention, the lifting mechanism includes a second motor 23, three screws 20 and a synchronous belt 21, the three screws 20 are equidistantly spaced along the circumference of the gear 9, three screws 20 have one end rotatably connected to the clamp mounting post 1, the other end is inserted into the sliding plate 4 and threadedly connected to the sliding plate 4, two adjacent screws 20 are connected through the synchronous belt 21, and one of the screws 20 is connected to the output end of the second motor 23 installed in the clamp mounting post 1. The screws 20 are driven to rotate by the second motor 23, and the adjacent screws 20 are driven by the synchronous belt 21, so that the sliding plate 4 can be lifted and lowered simultaneously and uniformly by the three screws 20.

Referring to fig. 1 and 3, in another embodiment of the present invention, a limit component 8 is further disposed on a side of the rack 7 away from the gear 9, the limiting assembly 8 comprises a limiting plate 11, a hinge plate 13, a connecting block 14, a hinge seat 15, a telescopic rod 16 and a spring 17, the limiting plate 11 and a supporting plate 24 are arranged at intervals and are arranged on the sliding plate 4, wherein the outer wall of the limit plate 11 is contacted with the rack 7, the bottom of the limit plate is connected with the sliding plate 4 in a sliding way, an expansion link 16 with an expansion structure is arranged between the limiting plate 11 and the supporting plate 24, both sides of the expansion link 16 are connected with the connecting block 14 through springs 17, two hinge plates 13 are symmetrically hinged on two sides of the connecting block 14, the end parts of the hinge plates 13 are hinged on a hinge seat 15, the hinged base 15 is respectively installed on the inner walls of the limiting plate 11 and the supporting plate 24, and the sliding plate 4 is further provided with a third sliding rail 18 which is in sliding connection with the sliding block at the bottom of the connecting block 14. Due to the elastic action of the spring 17, the inner wall of the limiting plate 11 can be always in contact with the rack 7, the rack 7 is fully meshed with the gear 9, the self-locking performance between the gear 9 and the rack 7 is improved, and the reduction of the clamping effect of the inner clamping arc-shaped block 6 caused by the looseness between the rack 7 and the gear 9 is avoided.

Claims

1. A lathe fixture for machining automobile parts comprises a fixture mounting column (1) connected with the output end of a motor through a main shaft (19); the fixture is characterized in that an outer fixture mechanism moving towards the circle center of the fixture mounting column (1) and an inner fixture mechanism moving away from the circle center of the fixture mounting column (1) are arranged on the working surface of the fixture mounting column (1), the inner fixture mechanism is arranged on a sliding plate (4), the bottom of the sliding plate (4) is connected with a mounting groove in the fixture mounting column (1) in a sliding mode through a lifting mechanism, the inner fixture mechanism comprises a gear rotating shaft (10), a gear (9), racks (7), inner clamping arc-shaped blocks (6) and a first motor (22), the first motor (22) is arranged in the sliding plate (4), the output end of the first motor is connected with the gear (9) through the gear rotating shaft (10), three racks (7) are arranged on the periphery of the gear (9) at equal intervals along the circumferential direction, the side walls of the racks (7) are connected with the gear (9) in a meshing mode, and the end portions of the racks (7) are provided with the inner clamping arc-shaped blocks (6), the bottom of the inner clamping arc-shaped block (6) is in sliding connection with a first sliding rail (5) arranged on the sliding plate (4) through a sliding block, and the direction of the first sliding rail (5) is the same as the motion trail of the rack (7).

2. The lathe fixture for machining the automobile parts, as claimed in claim 1, wherein the outer fixture mechanism comprises a second slide rail (2) and three outer fixture blocks (3), the three outer fixture blocks (3) are arranged at equal intervals along the circumferential direction of the fixture mounting column (1), each outer fixture block (3) is located between two racks (7), and the bottoms of the three outer fixture blocks (3) are connected with the second slide rail (2) arranged on the fixture mounting column (1) in a constant-speed and same-direction sliding mode through sliders.

3. The turning attachment for automobile parts machining according to claim 2, characterized in that the working surface of the outer clamping block (3) is an arc-shaped portion that protrudes outward.

4. The lathe fixture for machining the automobile parts as claimed in claim 1, wherein the lifting mechanism comprises a second motor (23), three screw rods (20) and a synchronous belt (21), the three screw rods (20) are arranged at equal intervals along the circumferential direction of the gear (9), one ends of the three screw rods (20) are rotatably connected with the fixture mounting column (1), the other ends of the three screw rods are inserted into the sliding plate (4) and are in threaded connection with the sliding plate (4), two adjacent screw rods (20) are connected through the synchronous belt (21), and one of the screw rods (20) is connected with an output end of the second motor (23) installed in the fixture mounting column (1).

5. The lathe fixture for machining the automobile parts, according to claim 1, characterized in that a limiting component (8) is further arranged on one side, away from the gear (9), of the rack (7), the limiting component (8) comprises a limiting plate (11), hinged plates (13), a connecting block (14), a hinged seat (15), a telescopic rod (16) and a spring (17), the limiting plate (11) and a supporting plate (24) are arranged at intervals and mounted on the sliding plate (4), wherein the outer wall of the limiting plate (11) is in contact with the rack (7), the bottom of the limiting plate is in sliding connection with the sliding plate (4), the telescopic rod (16) in a telescopic structure is arranged between the limiting plate (11) and the supporting plate (24), two sides of the telescopic rod (16) are connected with the connecting block (14) through the spring (17), two hinged plates (13) are symmetrically hinged to two sides of the connecting block (14), the end part of the hinged plate (13) is hinged to the hinged seat (15), the hinged seat (15) is respectively installed on the inner walls of the limiting plate (11) and the supporting plate (24), and the sliding plate (4) is further provided with a third sliding rail (18) which is in sliding connection with the sliding block at the bottom of the connecting block (14).