CN224042952U - A welding and fixing fixture for automotive parts - Google Patents

Abstract

The utility model discloses an automobile part welding fixture which comprises a base, wherein a bidirectional screw is rotatably arranged on the upper end face of the base through a moving opening, a motor connected with the bidirectional screw is fixedly arranged on the outer wall of the base, two moving blocks are arranged on the outer wall of the bidirectional screw through a limiting mechanism in a threaded mode, supporting frames are fixedly arranged at the end parts of the two moving blocks, a placing plate is fixedly arranged on the inner bottom wall of the two supporting frames through a supporting mechanism, rotating shafts are rotatably and penetratingly arranged on the inner walls of the two supporting frames, and a first hydraulic cylinder and a second hydraulic cylinder are fixedly arranged at the end parts of the two rotating shafts through a mounting mechanism. According to the utility model, by arranging the components such as the electric push rod, the toothed plate and the gear, the toothed plate can be meshed with the rotating gear under the expansion and contraction of the electric push rod, so that the upper and lower positions of the arc-shaped clamping plate and the plane clamping plate can be conveniently adjusted, the clamp can be suitable for automobile parts with different shapes, and the universality of the clamp is improved.

Description

Automobile part welding fixture

Technical Field

The utility model relates to the technical field of automobile manufacturing, in particular to an automobile part welding fixture.

Background

The fixing jig is a device for fixing a work object in a machine manufacturing process so as to occupy a correct position for performing work or inspection, and is generally composed of a positioning member, a clamping device, a tool setting guide member, an indexing device, a connecting member, a jig body (jig base), and the like.

When automobile parts are welded, accurate positioning and stable clamping are of great importance, the defects of the conventional welding fixture are obvious, parts with complex shapes are difficult to comprehensively and reliably fix, the welding fixture is easy to displace during welding, welding precision is reduced, most fixtures are poor in universality, only parts with specific shapes and sizes are adapted, the fixtures are required to be frequently replaced when products are updated or parts with different models are produced, the cost and the production period are increased, and the practicability is insufficient, so that the automobile parts welding fixture is required to be redesigned according to the problems.

Disclosure of utility model

The utility model aims to solve the defects in the prior art and provides a welding fixture for automobile parts.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The utility model provides an automobile parts welding fixture, includes the base, the base up end rotates through the removal opening and installs bi-directional screw rod, base outer wall fixed mounting has the motor of being connected with bi-directional screw rod, bi-directional screw rod outer wall passes through stop gear screw thread installation has two movable blocks, two equal fixed mounting of movable block tip has the braced frame, two diapire all has the board of placing through braced mechanism fixed mounting in the braced frame, two the equal rotation of braced frame inner wall runs through and installs the axis of rotation, two the axis of rotation tip all has first pneumatic cylinder and second pneumatic cylinder through installation mechanism fixed mounting, two the equal fixed mounting of first pneumatic cylinder telescopic end has arc grip block, two the equal fixed mounting of second pneumatic cylinder telescopic end has plane grip block, two the equal fixed mounting of arc grip block and two plane grip block inner wall have the slipmat, two equal fixed mounting of braced frame outer wall has the connecting plate, two the connecting plate up end all has the board fixedly connected with through telescopic machanism, two the outer wall all has the pinion rack through coupling mechanism fixed connection, two the equal fixed mounting of connecting block with the same pinion with the gear of tooth side.

Preferably, the limiting mechanism comprises a limiting rod fixedly installed inside the moving opening, and the limiting rod penetrates through the two moving blocks in a sliding mode.

Preferably, the supporting mechanism comprises a supporting rod fixedly arranged on the inner bottom wall of the supporting frame, and the end part of the supporting rod is fixedly connected with the bottom wall of the placing plate.

Preferably, the mounting mechanism comprises a mounting block fixedly mounted at the end part of the rotating shaft, and the first hydraulic cylinder and the second hydraulic cylinder are fixedly mounted on the outer wall of the mounting block.

Preferably, the telescopic mechanism comprises an electric push rod fixedly arranged on the upper end face of the connecting plate, and the telescopic end of the electric push rod is fixedly connected with the bottom wall of the connecting block.

Preferably, the connecting mechanism comprises a connecting rod fixedly arranged on the outer wall of the connecting block, and the end part of the connecting rod is fixedly connected with the inner wall of the toothed plate.

The utility model has the beneficial effects that:

1. Through setting up subassembly such as electric putter, pinion rack and gear, under the flexible of electric putter, can make pinion rack interlock rotate the gear, can carry out convenient adjustment to the upper and lower position of arc grip block and plane grip block from this to can adapt to the automobile parts of different shapes, improve the commonality of anchor clamps.

2. Through setting up components such as two-way screw rod, gag lever post and movable block, the cooperation of two-way screw rod accessible gag lever post drives two movable blocks and removes, distance between the adjustable braced frame from this to can make anchor clamps can carry out nimble regulation according to welding process and spare part size of difference.

Drawings

Fig. 1 is a schematic structural view of a welding fixture for automobile parts according to the present utility model;

FIG. 2 is a schematic vertical sectional view of FIG. 1;

FIG. 3 is a schematic side view of a welding fixture for automotive parts according to the present utility model;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 2;

fig. 5 is an enlarged schematic view of the structure at B in fig. 3.

In the figure, a base, a two-way screw, a motor, a limit rod, a moving block 5, a supporting frame 6, a supporting rod 7, a placing plate 8, a rotating shaft 9, a mounting block 10, a first hydraulic cylinder 11, a second hydraulic cylinder 12, an arc-shaped clamping plate 13, a plane clamping plate 14, an anti-skid pad 15, a connecting plate 16, an electric push rod 17, a connecting block 18, a connecting rod 19, a toothed plate 20 and a gear 21 are arranged on the base.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-5, an automobile part welding fixture comprises a base 1, a bidirectional screw rod 2 is rotatably installed on the upper end face of the base 1 through a moving opening, a motor 3 connected with the bidirectional screw rod 2 is fixedly installed on the outer wall of the base 1, two moving blocks 5 are installed on the outer wall of the bidirectional screw rod 2 through a limiting mechanism thread, the limiting mechanism comprises a limiting rod 4 fixedly installed inside the moving opening, the limiting rod 4 penetrates through the two moving blocks 5 in a sliding mode, supporting frames 6 are fixedly installed at the end portions of the two moving blocks 5, a placing plate 8 is fixedly installed on the inner bottom wall of the two supporting frames 6 through supporting mechanisms, the supporting mechanisms comprise supporting rods 7 fixedly installed on the inner bottom wall of the supporting frames 6, and the end portions of the supporting rods 7 are fixedly connected with the bottom wall of the placing plate 8.

The inner walls of the two supporting frames 6 are all rotated and penetrate through the rotating shafts 9, the end parts of the two rotating shafts 9 are fixedly provided with the first hydraulic cylinders 11 and the second hydraulic cylinders 12 through mounting mechanisms, the mounting mechanisms comprise mounting blocks 10 fixedly mounted at the end parts of the rotating shafts 9, the first hydraulic cylinders 11 and the second hydraulic cylinders 12 are fixedly mounted on the outer walls of the mounting blocks 10, the telescopic ends of the two first hydraulic cylinders 11 are fixedly provided with arc clamping plates 13, the telescopic ends of the two second hydraulic cylinders 12 are fixedly provided with plane clamping plates 14, the inner walls of the two arc clamping plates 13 and the two plane clamping plates 14 are fixedly provided with anti-skidding pads 15, and the outer walls of the two supporting frames 6 are fixedly provided with connecting plates 16.

The upper end faces of the two connecting plates 16 are fixedly connected with connecting blocks 18 through telescopic mechanisms, the telescopic mechanisms comprise electric push rods 17 fixedly mounted on the upper end faces of the connecting plates 16, telescopic ends of the electric push rods 17 are fixedly connected with bottom walls of the connecting blocks 18, the outer walls of the two connecting blocks 18 are fixedly connected with toothed plates 20 through connecting mechanisms, the connecting mechanisms comprise connecting rods 19 fixedly mounted on the outer walls of the connecting blocks 18, the end parts of the connecting rods 19 are fixedly connected with the inner walls of the toothed plates 20, and gears 21 meshed with the toothed plates 20 on the same side are fixedly mounted on the outer walls of the two rotating shafts 9.

When the anti-friction device is used, two parts can be respectively placed on the upper end faces of the placement plates 8 on two sides, then the electric push rod 17 can drive the toothed plate 20 to move through the cooperation of the connecting block 18 and the connecting rod 19, the toothed plate 20 can be meshed with the gear 21 to drive the rotating shaft 9 to rotate when moving, after the rotating shaft 9 rotates, as the first hydraulic cylinder 11 and the second hydraulic cylinder 12 are fixed at the end part of the rotating shaft 9 through the mounting block 10, the rotating shaft 9 can drive the first hydraulic cylinder 11 and the second hydraulic cylinder 12 to rotate through the mounting block 10, so that the upper and lower positions of the arc-shaped clamping plates 13 on the same side and the plane clamping plates 14 can be adjusted, when the parts are arc-shaped outer walls, the arc-shaped clamping plates 13 can be positioned below the mounting block 10, after the arc-shaped clamping plates 13 are positioned below the mounting block 10, the first hydraulic cylinder 11 is started, the telescopic ends of the first hydraulic cylinder 11 start to downwards extend, the arc-shaped clamping plates 13 are pushed towards the parts with arc-shaped outer walls placed on the placement plates 8, the continuous action of the first hydraulic cylinder 11 is carried out, the anti-friction device is gradually attached to the outer walls 15 of the parts, and the anti-friction devices can be prevented from being scratched or the outer walls of the parts can be welded in the process, and the friction device can be prevented from being damaged or the outer surfaces of the parts can be welded or caused by the fact that the friction device is not to be welded;

After the arc clamping plate 13 is tightly attached to a part, if the part on the other side is of a planar structure, the electric push rod 17 is controlled to act reversely to drive the toothed plate 20 to move reversely, so that the rotating shaft 9 rotates reversely, the rotating shaft 9 drives the first hydraulic cylinder 11 and the second hydraulic cylinder 12 to rotate reversely through the mounting block 10, the planar clamping plate 14 is adjusted to the lower part of the mounting block 10, then the second hydraulic cylinder 12 is started, the telescopic end of the second hydraulic cylinder stretches out downwards, the planar clamping plate 14 is pushed to approach and press the part of the planar structure, the anti-skid pad 15 on the inner wall of the planar clamping plate 14 is fully contacted with the plane of the part, the friction force is increased and the surface of the part is protected, after the parts on the two sides are stably clamped, the motor 3 mounted on the outer wall of the base 1 is started, the motor 3 drives the bidirectional screw rod 2 to rotate, under the limiting action of the limiting rod 4, the two moving blocks 5 move linearly in opposite directions along the bidirectional screw rod 2, the moving blocks 5 drive the supporting frames 6 connected with the two moving blocks to approach each other, so that the two parts on the two placing plates 8 on the two sides are adjusted to a proper distance, the two parts on the two parts are positioned and clamped plates 13 and the best clamped and the two parts are positioned and clamped under the arc clamping plate 13 and the proper clamping state.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. The utility model provides an automobile parts welded fastening clamp, includes base (1), its characterized in that, base (1) up end is rotated through the removal opening and is installed bi-directional screw (2), base (1) outer wall fixed mounting has motor (3) of being connected with bi-directional screw (2), bi-directional screw (2) outer wall is through stop gear screw thread installation two movable blocks (5), two equal fixed mounting in movable block (5) tip has carriage (6), two carriage (6) inner wall all has through supporting mechanism fixed mounting to place board (8), two carriage (6) inner wall all rotates and runs through and install axis of rotation (9), two axis of rotation (9) tip all has first pneumatic cylinder (11) and second pneumatic cylinder (12) through installation mechanism fixed mounting, two first pneumatic cylinder (11) telescopic end all fixed mounting has arc grip block (13), two second pneumatic cylinder (12) telescopic end all fixed mounting has plane grip block (14), two block carriage (13) and two carriage (16) inner wall all have connecting plate (16) through the equal fixed connection of connecting plate (16), the outer walls of the two connecting blocks (18) are fixedly connected with toothed plates (20) through connecting mechanisms, and gears (21) meshed with the toothed plates (20) on the same side are fixedly arranged on the outer walls of the two rotating shafts (9).

2. The welding fixture for automobile parts according to claim 1, wherein the limiting mechanism comprises a limiting rod (4) fixedly installed inside the moving opening, and the limiting rod (4) penetrates through the two moving blocks (5) in a sliding mode.

3. The welding fixture for automobile parts according to claim 2, wherein the supporting mechanism comprises a supporting rod (7) fixedly installed on the inner bottom wall of the supporting frame (6), and the end part of the supporting rod (7) is fixedly connected with the bottom wall of the placing plate (8).

4. A welding fixture for automotive parts according to claim 3, characterized in that the mounting mechanism comprises a mounting block (10) fixedly mounted at the end of the rotating shaft (9), and the first hydraulic cylinder (11) and the second hydraulic cylinder (12) are fixedly mounted on the outer wall of the mounting block (10).

5. The welding fixture for automobile parts according to claim 4, wherein the telescopic mechanism comprises an electric push rod (17) fixedly arranged on the upper end face of the connecting plate (16), and the telescopic end of the electric push rod (17) is fixedly connected with the bottom wall of the connecting block (18).

6. The welding fixture for automobile parts according to claim 5, wherein the connecting mechanism comprises a connecting rod (19) fixedly installed on the outer wall of the connecting block (18), and the end part of the connecting rod (19) is fixedly connected with the inner wall of the toothed plate (20).