CN216912692U

CN216912692U - Combined welding fixture for welding vehicle body

Info

Publication number: CN216912692U
Application number: CN202123434941.0U
Authority: CN
Inventors: 何旭丹; 潘浩; 吴志亚; 陈妍; 张瑜
Original assignee: Wuxi Institute Of Communications Technology
Current assignee: Wuxi Institute Of Communications Technology
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-07-08
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a combined welding fixture for welding a vehicle body, which relates to the technical field of welding and comprises a supporting plate, adjusting mechanisms and a clamping mechanism, wherein four corners of the lower surface of the supporting plate are fixedly connected with supporting columns, the upper surface of the supporting plate is provided with two symmetrically arranged through cavities, the supporting plate is connected with the two symmetrically arranged adjusting mechanisms, each adjusting mechanism comprises a frame plate, a sliding rod, a motor, a screw rod, a nut block, a connecting block and a fixing plate, the lower surface of the supporting plate is fixedly connected with the two frame plates which are arranged in parallel, in the using process, the rotation of the motor drives the screw rod to rotate, the rotation of the screw rod drives the two nut blocks to slide on the sliding rod and to approach each other, when the motor rotates reversely, the two nut blocks slide on the sliding rod and to move away from each other, and the movement of the nut blocks drives the fixing plate to move through the connecting block, the clamping mechanisms connected to the fixing plate move along with the fixing plate, so that the distance between the clamping mechanisms can be adjusted, the automobile bodies with different lengths can be conveniently welded, and the applicability of the device is improved.

Description

Combined welding fixture for welding vehicle body

Technical Field

The utility model relates to the technical field of welding, in particular to a combined welding fixture for welding a vehicle body.

Background

Welding, also known as fusion welding, is a process and technique for joining metals or other thermoplastic materials, such as plastics, in a heated, high temperature or high pressure manner, and the energy sources for modern welding are many, including gas flame, electric arc, laser, electron beam, friction, ultrasonic, and the like.

In the welding process of the car body, the car body needs to be fixed by utilizing a clamp, and the Chinese utility model patent provides a combined welding clamp (publication number: CN214602761U) for welding the car body, which solves the problem that the existing part of the welding clamp can not adjust the height of a welded workpiece according to the actual situation, but has certain limitation in the use process, is inconvenient for welding the car bodies with different lengths and has poor applicability.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a combined welding fixture for welding a vehicle body, which aims to solve the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme:

a combined welding fixture for welding a vehicle body comprises a supporting plate, adjusting mechanisms and a clamping mechanism, wherein four corners of the lower surface of the supporting plate are fixedly connected with supporting columns, the upper surface of the supporting plate is provided with two symmetrically arranged through cavities, the supporting plate is connected with the two symmetrically arranged adjusting mechanisms, each adjusting mechanism comprises a frame plate, a sliding rod, a motor, a lead screw, a nut block, a connecting block and a fixing plate, the lower surface of the supporting plate is fixedly connected with two frame plates which are arranged in parallel, the two frame plates are fixedly connected through the two sliding rods which are arranged in parallel, the motor is arranged on the side surface of one frame plate, the output end of the motor penetrates through the adjacent frame plates and is fixedly connected with the lead screw through a coupler, the other end of the lead screw is rotatably connected with the side surface of the other frame plate, two nut blocks which are arranged in symmetry are sleeved on the lead screw, and the upper surface of each nut block is fixedly connected with the connecting block, the connecting block runs through adjacent logical chamber and fixedly connected with fixed plate, be connected with fixture on the fixed plate, fixture includes cylinder, lower plate, L shaped plate, screw rod, punch holder, rubber slipmat and gag lever post, the last surface mounting of fixed plate has the cylinder, the output fixedly connected with lower plate of cylinder, the last surface of fixed plate is fixedly connected with L shaped plate still, threaded connection has the screw rod on the L shaped plate, the lower extreme of screw rod rotates and is connected with the punch holder, the lower fixed surface of punch holder even has the rubber slipmat, the last fixed surface of punch holder is connected with the gag lever post, the gag lever post slides and runs through the L shaped plate.

As a further scheme of the utility model: and one side surface of the L-shaped plate is fixedly connected with a fluorescent strip.

As a further scheme of the utility model: the upper end of the screw rod is fixedly connected with a hand wheel matched with the screw rod.

As a further scheme of the utility model: and the threads at the two ends of the screw rod are reversely opposite.

As a further scheme of the utility model: the upper surface of the lower splint is provided with anti-skid grains.

As a further scheme of the utility model: the fixed cover of support column lower extreme is equipped with assorted antiskid cover.

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

1. when the device is used, the motor rotates to drive the screw rod to rotate, the screw rod drives the two nut blocks to slide on the slide rods and to approach each other, when the motor rotates reversely, the two nut blocks slide on the slide rods and move away from each other, the nut blocks move to drive the fixed plate to move through the connecting blocks, and the clamping mechanisms connected to the fixed plate move along with the nut blocks, so that the distance between the clamping mechanisms can be adjusted, the device is convenient to weld and use vehicle bodies with different lengths, and the applicability of the device is improved.

2. When the automobile body clamping device is used for clamping, the height of the lower clamping plate can be adjusted through the expansion and contraction of the air cylinder, so that the clamping height can be adjusted according to the actual condition of the automobile body, after the adjustment is finished, four corners of the automobile body are respectively placed on the lower clamping plate, the lower end of the screw rod is rotatably connected with the upper surface of the upper clamping plate through screwing the screw rod and is limited by the limiting rod, the screw rod can drive the upper clamping plate to vertically move downwards to clamp and fix the automobile body on the lower clamping plate through the rotation of the screw rod, in addition, in the clamping process, the friction force is increased through the arranged rubber anti-skid pad, the automobile body is more stable, and in addition, a certain buffering effect can be realized in the clamping process through the elasticity of the rubber anti-skid pad.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of another embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a clamping mechanism according to the present invention.

In the figure: 1. a support plate; 2. a support pillar; 3. a slide bar; 4. a cavity is communicated; 5. an electric motor; 6. a frame plate; 7. a fixing plate; 8. an L-shaped plate; 9. a cylinder; 10. a fluorescent strip; 11. a nut block; 12. connecting blocks; 13. a screw rod; 14. a limiting rod; 15. a lower splint; 16. a rubber non-slip mat; 17. an upper splint; 18. a screw; 19. a handwheel.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1 to 3, in an embodiment of the present invention, a combined welding fixture for welding a vehicle body includes a supporting plate 1, an adjusting mechanism and a clamping mechanism.

Referring to fig. 1 and 2, four corners of a lower surface of the support plate 1 are fixedly connected with support columns 2, an upper surface of the support plate 1 is provided with two through cavities 4 which are symmetrically arranged, the support plate 1 is connected with two adjusting mechanisms which are symmetrically arranged, each adjusting mechanism comprises a frame plate 6, a slide rod 3, a motor 5, a screw rod 13, a nut block 11, a connecting block 12 and a fixing plate 7, the lower surface of the support plate 1 is fixedly connected with two frame plates 6 which are arranged in parallel, the two frame plates 6 are fixedly connected with each other through the two slide rods 3 which are arranged in parallel, the motor 5 is arranged on a side surface of one frame plate 6, an output end of the motor 5 penetrates through the adjacent frame plates 6 and is fixedly connected with the screw rod 13 through a coupler, the other end of the screw rod 13 is rotatably connected with a side surface of the other frame plate 6, two nut blocks 11 which are symmetrically arranged are sleeved on the screw rod 13, and the upper surface of the nut block 11 is fixedly connected with the connecting block 12, the connecting block 12 penetrates through the adjacent through cavities 4 and is fixedly connected with a fixing plate 7, and a clamping mechanism is connected to the fixing plate 7.

Referring to fig. 2, the opposite direction of the threads at the two ends of the screw rod 13 allows the two nut blocks 11 to move closer to or away from each other on the sliding rod 3 when the screw rod 13 is rotated.

It should be noted that: in the use, rotation through motor 5 drives the rotation of lead screw 13, the rotation of lead screw 13 drives and makes two nut pieces 11 slide on slide bar 3, be close to each other, when motor 5 reverses, make two nut pieces 11 slide on slide bar 3, keep away from each other, the removal of nut piece 11 passes through the removal that connecting block 12 drove fixed plate 7, the messenger connects the fixture on fixed plate 7 and removes thereupon, thereby can adjust the distance between the fixture, the convenient automobile body to different length welds the use, the suitability of device has been improved.

Referring to fig. 1 and 2, the lower end of the support column 2 is fixedly sleeved with an anti-slip sleeve, and the friction force is increased by the anti-slip sleeve, so that the support column 2 is more stable when supported.

Referring to fig. 1, fig. 2 and fig. 3, fixture includes cylinder 9, lower plate 15, L-shaped plate 8, screw 18, upper plate 17, rubber non-slip mat 16 and gag lever post 14, the last surface mounting of fixed plate 7 has cylinder 9, the output fixedly connected with lower plate 15 of cylinder 9, the upper surface of fixed plate 7 is fixedly connected with L-shaped plate 8 still, threaded connection has screw 18 on the L-shaped plate 8, the lower extreme of screw 18 rotates and is connected with upper plate 17, the lower fixed surface of upper plate 17 even has rubber non-slip mat 16, the last fixed surface of upper plate 17 is connected with gag lever post 14, gag lever post 14 slides and runs through L-shaped plate 8.

It should be noted that: when carrying out the centre gripping, the height of lower plate 15 can be adjusted through the flexible of cylinder 9, thereby can adjust the centre gripping height according to the actual conditions of automobile body, the back is accomplished in the regulation, place four corners of automobile body in lower plate 15 respectively again, through twisting screw rod 18, the lower extreme of screw rod 18 is connected with the upper surface rotation of punch holder 17, and receive the limiting displacement of gag lever post 14, the rotation of screw rod 18 can drive the perpendicular of punch holder 17 and move down, be fixed in on lower plate 15 with the automobile body centre gripping, and in the centre gripping process, through the rubber slipmat 16 that sets up, increase frictional force, make the automobile body more stable, and through the elasticity of rubber slipmat 16, can play certain cushioning effect in the centre gripping process.

Referring to fig. 3, the upper end of the screw 18 is fixedly connected with a matching hand wheel 19, and the screw 18 is convenient to rotate through the arranged hand wheel 19.

Referring to fig. 2, a fluorescent strip 10 is fixedly connected to one side surface of the L-shaped plate 8, and the fluorescent strip 10 is arranged to play a role of fluorescent warning.

Anti-skidding line has been seted up to the upper surface of lower plate 15, through the anti-skidding line that sets up, increase frictional force makes the centre gripping more stable when fixed.

The circuits and controls involved in the present invention are prior art and will not be described in detail herein.

Claims

1. The utility model provides a car body welding is with combination formula welding jig which characterized in that includes:

the support plate comprises a support plate (1), wherein support columns (2) are fixedly connected to four corners of the lower surface of the support plate (1), and two through cavities (4) which are symmetrically arranged are formed in the upper surface of the support plate (1);

the adjusting mechanism, be connected with the adjusting mechanism of two symmetry settings on backup pad (1), adjusting mechanism includes frame plate (6), slide bar (3), motor (5), lead screw (13), nut piece (11), connecting block (12) and fixed plate (7), the lower fixed surface of backup pad (1) is connected with two parallel arrangement's frame plate (6), slide bar (3) fixed connection through two parallel arrangement between two frame plate (6), motor (5) are installed to the side of one of them frame plate (6), the output of motor (5) runs through adjacent frame plate (6) and through shaft coupling fixedly connected with lead screw (13), the other end of lead screw (13) is connected with the side of another frame plate (6) rotation, threaded sleeve is equipped with two nut pieces (11) that the symmetry set up on lead screw (13), the upper surface fixed connection of nut piece (11) is connected with connecting block (12), the connecting block (12) penetrates through the adjacent through cavities (4) and is fixedly connected with a fixing plate (7);

fixture, be connected with fixture on fixed plate (7), fixture includes cylinder (9), lower plate (15), L shaped plate (8), screw rod (18), punch holder (17), rubber slipmat (16) and gag lever post (14), the last surface mounting of fixed plate (7) has cylinder (9), output fixedly connected with lower plate (15) of cylinder (9), the last surface of fixed plate (7) still fixedly connected with L shaped plate (8), threaded connection has screw rod (18) on L shaped plate (8), the lower extreme of screw rod (18) rotates and is connected with punch holder (17), the lower fixed surface of punch holder (17) links there is rubber slipmat (16), the last fixed surface of punch holder (17) is connected with gag lever post (14), gag lever post (14) slide and run through L shaped plate (8).

2. The welding jig of claim 1, wherein a fluorescent strip (10) is fixedly connected to one side of the L-shaped plate (8).

3. The combined welding fixture for welding the vehicle body according to claim 1, wherein the upper end of the screw rod (18) is fixedly connected with a matched hand wheel (19).

4. The modular welding jig for welding vehicle bodies according to claim 1, wherein the screw threads at both ends of the screw (13) are reversed.

5. The combined welding jig for welding the vehicle body as recited in claim 1, wherein the upper surface of the lower plate (15) is provided with anti-slip threads.

6. The modular welding jig of claim 1, characterized in that the lower end of the support pillar (2) is fixedly sleeved with a matching anti-slip sleeve.