CN113275820A

CN113275820A - Automobile body welding clamping device

Info

Publication number: CN113275820A
Application number: CN202110665265.3A
Authority: CN
Inventors: 姚其荣
Original assignee: Xinchang Weisi Machinery Co ltd
Current assignee: Xinchang Weisi Machinery Co ltd
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2021-08-20

Abstract

The invention relates to the technical field of automobile parts, in particular to an automobile body welding clamping device which comprises a processing platform, wherein a conveying mechanism and a clamping device are arranged on the processing platform, the conveying mechanism comprises two groups of hydraulic cylinders and a bearing seat, the clamping device is arranged on two sides of the bearing seat, the clamping device comprises two groups of movable plates in mirror symmetry, the two groups of movable plates are driven by the conveying mechanism to linearly move on the processing platform in opposite directions, a pressing seat is arranged on each of the two groups of movable plates, a flexible clamping piece is arranged on each pressing seat, side plates are symmetrically arranged on two sides of each movable plate, the side plates are fixedly arranged at the upper end of the processing platform, guide blocks are fixedly connected to two sides of each movable plate, and driving strips are fixedly connected to the upper end and the lower end of each guide block. The invention has the effect of intelligent self-speed-changing safe clamping, and effectively avoids deformation of a clamping part when a vehicle body is clamped and fixed.

Description

Automobile body welding clamping device

Technical Field

The invention relates to the technical field of automobile parts, in particular to an automobile body welding and clamping device.

Background

At present, with the use of automobiles becoming more and more common, the maintenance amount of the automobiles is increasing day by day, and when the automobile bodies need to be welded, most maintenance departments weld the parts needing to be welded after disassembling the parts, so as to avoid damaging the internal components of the automobile bodies when the automobiles are welded;

the invention discloses a welding fixture tool for an automobile body, which is provided with the application number of CN201710504385.9, and the welding fixture tool comprises a die bottom plate, wherein a ferrule is arranged at the outer edge part of the die bottom plate, and a first cylinder and a second cylinder are sequentially arranged on the ferrule in a staggered manner; cylinder shafts of the first cylinder and the second cylinder are respectively connected and fixed with the fastening base plate and the moving wheel; one side of the die bottom plate is connected with a controller; wherein, the mould bottom plate is provided with a plurality of welding clamp components matched and paired with the controller; the bottom plate of the mold is provided with a plurality of supporting vertical plates matched with the automobile body, and the top of each supporting vertical plate is provided with a universal bearing; the die bottom plate is provided with a sliding column in a sliding mode, the top of the sliding column is provided with a supporting plate, the bottom of the sliding column is fixedly connected with a third air cylinder, and the supporting plate is provided with a sucker. The invention can effectively match the requirements of automobile body processing and ensure the welding processing quality.

However, most of the structures for trimming, welding and fixing the automobile body adopt the air cylinder, and the impact force of the air cylinder is large, so that the clamping part of the automobile body is easy to deform and cause secondary damage for some structures with thin automobile bodies, and the automobile bodies are inconvenient to fix according to different shapes.

In view of this, we propose a car body welding clamping device.

Disclosure of Invention

The invention aims to provide a welding and clamping device for an automobile body, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a welding and clamping device for an automobile body comprises a processing platform, wherein a conveying mechanism and a clamping device are arranged on the processing platform, the conveying mechanism comprises two sets of hydraulic cylinders and a bearing seat which are positioned at the top of the processing platform, piston rods of the hydraulic cylinders are fixedly connected with a push plate, two sides of the bearing seat are provided with the clamping device, the clamping device comprises two sets of mirror-symmetrical movable plates, the two sets of movable plates are driven by the conveying mechanism to move linearly and oppositely on the processing platform, one sides of the two sets of movable plates, which are close to each other, are fixedly provided with pressing seats, flexible clamping pieces are arranged on the pressing seats, two sides of the movable plates are symmetrically provided with side plates, the side plates are fixedly arranged at the upper end of the processing platform, one sides of the side plates, which are close to the movable plates, are provided with cross-shaped chutes, two sides of the movable plates are fixedly connected with guide blocks, and the guide blocks are slidably arranged in the middle parts of the cross-shaped chutes, and the upper end and the lower end of the guide block are fixedly connected with the driving strip.

Preferably, two sets of rectangle recesses have been seted up to the inside one end symmetry that is close to bearing the seat of curb plate, and slidable mounting has the inclined plane piece in the rectangle recess, and the fixed first magnetic sheet that is provided with of inclined plane piece horizontal end, the fixed second magnetic sheet that is provided with of diapire in the rectangle recess, first magnetic sheet set up for the magnetic pole of the same name is relative in the second magnetic sheet, and the drive strip is held with the inclined plane of inclined plane piece and is slided and contradicted.

Preferably, compress tightly the inside rectangle array that is of seat and seted up a plurality of cylindricality chambeies, every cylindricality intracavity all is provided with a flexible holder, and flexible holder includes telescopic link, spring, stopper and rubber touch pad, telescopic link one end fixed connection rubber touches the pad, the telescopic link other end stretches into cylindricality intracavity and fixed connection stopper, and the spring is fixed to be set up at cylindricality intracavity and fixed connection stopper.

Preferably, a plurality of constant head tanks that are linear evenly distributed are seted up to the lower terminal surface of telescopic link, vertical spout has all been seted up in the left side in each columnar cavity, slidable mounting has the drive lever in the vertical spout, fixedly connected with multiunit L shape pull rod on the drive lever lateral wall, the cooperation groove that holds L shape pull rod is all seted up to the lower extreme in every columnar cavity, the one end setting that L shape pull rod is close to the telescopic link is circular-arc and inserts and establish in the constant head tank, the top of a plurality of drive levers is all connected in the baffle jointly, the up end that compresses tightly the seat is equipped with the fluting, slidable mounting baffle in the fluting, the one end fixed connection of baffle presses the board, baffle other end fixed connection multiunit S shape shell fragment.

Preferably, the upper surface of processing platform is equipped with the spout, and the bottom of two sets of fly leafs all is equipped with four universal balls that are the rectangle and distribute, and universal ball and spout roll fit bear the lower extreme of seat and be provided with adjustable lifting support.

Preferably, the hydraulic cylinder is a single-piston-rod hydraulic cylinder, the lower surfaces of the front end cover and the rear end cover of the hydraulic cylinder are fixedly connected with the vertical block, and the vertical block is fixedly connected with the processing platform.

Compared with the prior art, the invention has the beneficial effects that:

1. the clamping device has the advantages that when the shape and the size of an actual vehicle body are changed, the clamp can adapt to the change and can continue to use the strain capacity;

2. the self tension of the S-shaped elastic sheets acts on the baffle plate, so that the baffle plate is stressed to drive the driving rod to move upwards, the driving rod sequentially drives the L-shaped pull rods to move upwards and be inserted into the positioning grooves, and the positioning grooves and the L-shaped pull rods are selectively used in a matched mode, so that the multi-stage fixing effect of the telescopic rods can be achieved, the flexible clamping piece can make corresponding adjustment according to the shape of an actually clamped automobile body, and the shape can be kept;

3. the invention has the advantages that the repulsive force between the first magnetic plate and the second magnetic plate with the same name is favorably acted on the inclined plane block, so that the inclined plane block provides a certain conflict buffering effect for the driving strip, namely, when the movable plate is gradually close to the automobile body, the speed of the movable plate is gradually reduced, the intelligent self-speed-change safety clamping effect is achieved, and the deformation of a clamping part when the automobile body is clamped and fixed is effectively avoided.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a side view of the structure of the present invention;

FIG. 3 is an enlarged view of area A of FIG. 1;

fig. 4 is an enlarged schematic view of the region B in fig. 2.

In the figure: the processing platform comprises a processing platform 1, a side plate 2, a movable plate 3, a pressing seat 4, a push plate 5, a hydraulic cylinder 6, a vertical block 7, a universal ball 8, a guide block 9, a driving strip 10, an inclined block 11, a first magnetic plate 12, a second magnetic plate 13, a telescopic rod 14, a baffle plate 15, a driving rod 16, an L-shaped pull rod 17, an S-shaped elastic sheet 18, a spring 19, a limiting block 20, a rubber contact pad 21, a positioning groove 22, a pressing plate 23 and a bearing seat 24.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: the utility model provides an automobile body welding clamping device, includes processing platform 1, is provided with conveying mechanism and clamping device on the processing platform 1, and conveying mechanism is including two sets of pneumatic cylinders 6 and the carrier seat 24 that are located 1 tops of processing platform, the piston rod fixed connection push pedal 5 of pneumatic cylinder 6, and pneumatic cylinder 6 is single piston rod pneumatic cylinder, and the lower surface of preceding, the rear end cap of pneumatic cylinder 6 with found 7 fixed connection, found 7 fixed connection processing platform 1 of piece. Bear 24 lower extreme of seat and be provided with adjustable lifting support, the both sides of bearing 24 are equipped with clamping device, clamping device includes two sets of mirror symmetry's fly leaf 3, processing platform 1's upper surface is equipped with the spout, the bottom of two sets of fly leaves 3 all is equipped with four universal balls 8 that are the rectangle and distribute, universal ball 8 and spout roll cooperation, universal ball 8 is as the support and the processing platform 1 contact of two sets of fly leaves 3, not only play the spacing effect of direction, area of contact is little moreover, frictional resistance is little.

As shown in fig. 1 and fig. 2, two sets of fly leaves 3 are driven by conveying mechanism to make straight line phase motion on processing platform 1, the equal fixed mounting in one side that two sets of fly leaves 3 are close to each other has compressing tightly seat 4, install flexible holder on compressing tightly seat 4, the bilateral symmetry of fly leaf 3 is provided with curb plate 2, curb plate 2 is fixed to be set up in processing platform 1's upper end, and curb plate 2 is close to one side of fly leaf 3 and has seted up the cross spout, the equal fixedly connected with guide block 9 in both sides of fly leaf 3, guide block 9 slidable mounting is in the middle part of cross spout, and the equal fixed connection drive strip 10 in upper and lower both ends of guide block 9. The two groups of movable plates 3 which move in opposite directions linearly are utilized to drive the two groups of pressing seats 4 to clamp or loosen the automobile body, so that the automobile body is prevented from deviating in position, and good operation conditions are provided for a welding mechanism.

As shown in fig. 1, two sets of rectangular grooves are symmetrically formed in one end, close to a bearing seat 24, of the inside of a side plate 2, a bevel block 11 is arranged in each rectangular groove in a sliding mode, a first magnetic plate 12 is fixedly arranged at the horizontal end of each bevel block 11, a second magnetic plate 13 is fixedly arranged at the inner bottom wall of each rectangular groove, the first magnetic plate 12 is arranged opposite to the second magnetic plate 13 for like magnetic poles, and a driving strip 10 is in sliding contact with the bevel end of each bevel block 11. Do benefit to the repulsion between the first magnetic sheet 12 of the same name and the second magnetic sheet 13 and act on the bevel piece 11 for the bevel piece 11 provides certain conflict buffering effect to the driving strip 10, and when the fly leaf 3 was constantly close to automobile body promptly, the speed of fly leaf 3 reduced gradually, thereby reached the effect of intelligence from the safe centre gripping of variable speed, effectively avoided leading to the centre gripping position to warp when fixed to the automobile body centre gripping.

As shown in fig. 2 and 4, the pressing seat 4 is internally provided with a plurality of cylindrical cavities in a rectangular array, each cylindrical cavity is internally provided with a flexible clamping piece, each flexible clamping piece comprises a telescopic rod 14, a spring 19, a limiting block 20 and a rubber contact pad 21, one end of each telescopic rod 14 is fixedly connected with the rubber contact pad 21, the other end of each telescopic rod 14 extends into the corresponding cylindrical cavity and is fixedly connected with the limiting block 20, and the spring 19 is fixedly arranged in the corresponding cylindrical cavity and is fixedly connected with the limiting block 20. Through the cooperation of a plurality of telescopic link 14, spring 19, stopper 20 and rubber touch pad 21, can cut apart the clamping face unit into a plurality of tiny some units, the benefit of setting like this lies in, can be when the shape and the size of actual automobile body change, the anchor clamps can adapt to this kind of change and can continue the strain capacity who uses.

As shown in fig. 3 and 4, a plurality of constant head tanks 22 that are linear evenly distributed are seted up to the lower terminal surface of telescopic link 14, vertical spout has all been seted up to the left side in each columnar cavity, slidable mounting has drive rod 16 in the vertical spout, fixedly connected with multiunit L shape pull rod 17 on the 16 lateral walls of drive rod, the cooperation groove that holds L shape pull rod 17 is all seted up to the lower extreme in every columnar cavity, L shape pull rod 17 is close to the one end setting of telescopic link 14 and is circular-arc and insert and establish in constant head tank 22, the top of a plurality of drive rods 16 all connects in baffle 15 jointly, the up end that compresses tightly seat 4 is equipped with the fluting, slidable mounting baffle 15 in the fluting, the one end fixed connection of baffle 15 presses board 23, baffle 15 other end fixed connection multiunit S shape shell fragment 18. Utilize the tension of a plurality of S-shaped shrapnels 18 self to act on baffle 15 for baffle 15 atress drives drive lever 16 and upwards removes, and drive lever 16 drives a plurality of L shape pull rod 17 rebound in proper order again and inserts and establish in the constant head tank, and use with L shape pull rod 17 cooperation through selective use constant head tank, can realize the multistage fixed effect of telescopic link 14, thereby make flexible holder can make corresponding regulation according to the shape of actually being pressed from both sides the automobile body, and can keep this shape.

The working principle is as follows: in the in-service use, at first place the automobile body on bearing seat 24, then open two sets of pneumatic cylinders 6 in proper order, the piston rod of pneumatic cylinder 6 acts on push pedal 5, make push pedal 5 drive two sets of fly leaf 3 in proper order and constantly be close to towards the direction that bears seat 24, this in-process, do benefit to the repulsion between first magnetic sheet 12 of the same name and the second magnetic sheet 13 and act on inclined plane piece 11, make inclined plane piece 11 provide certain conflict buffering effect to drive strip 10, when fly leaf 3 is constantly close to automobile body promptly, the speed of fly leaf 3 reduces gradually, thereby reach the effect of intelligence from the safe centre gripping of variable speed, effectively avoid leading to the clamping part to warp when fixed to the automobile body centre gripping. And use through the cooperation of a plurality of telescopic link 14, spring 19, stopper 20 and rubber touch pad 21, can cut apart into the tiny some unit of a plurality of with the clamping face unit, the benefit that sets up like this lies in, can be when the shape and the size of actual automobile body change, anchor clamps can adapt to this kind of change and can continue the strain capacity who uses to make two sets of seats 4 that compress tightly can press from both sides tight automobile body well, avoid the skew in the automobile body emergence position to provide fine operating condition for welding mechanism.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automobile body welding clamping device, includes processing platform (1), be provided with conveying mechanism and clamping device on processing platform (1), its characterized in that: the conveying mechanism comprises two groups of hydraulic cylinders (6) and a bearing seat (24) which are positioned at the top of a processing platform (1), a piston rod of each hydraulic cylinder (6) is fixedly connected with a push plate (5), two sides of the bearing seat (24) are provided with clamping devices, each clamping device comprises two groups of mirror-symmetrical movable plates (3), the two groups of movable plates (3) are driven by the conveying mechanism to move in a linear opposite direction on the processing platform (1), one sides of the two groups of movable plates (3) close to each other are fixedly provided with pressing seats (4), the pressing seats (4) are provided with flexible clamping pieces, two sides of the movable plates (3) are symmetrically provided with side plates (2), the side plates (2) are fixedly arranged at the upper end of the processing platform (1), one sides of the side plates (2) close to the movable plates (3) are provided with cross-shaped sliding grooves, and two sides of the movable plates (3) are fixedly connected with guide blocks (9), the guide block (9) is slidably arranged in the middle of the cross-shaped sliding groove, and the upper end and the lower end of the guide block (9) are fixedly connected with the driving strip (10).

2. The welding fixture for the automobile body according to claim 1, wherein: two sets of rectangle recesses have been seted up to the inside one end symmetry that is close to bearing seat (24) of curb plate (2), and slidable mounting has inclined plane piece (11) in the rectangle recess, and inclined plane piece (11) horizontal end is fixed and is provided with first magnetic sheet (12), and the diapire is fixed and is provided with second magnetic sheet (13) in the rectangle recess, and first magnetic sheet (12) set up for the like magnetic pole in second magnetic sheet (13) relatively, and drive strip (10) contradict with the inclined plane end slip of inclined plane piece (11).

3. The welding fixture for the automobile body according to claim 1, wherein: compress tightly seat (4) inside and be a rectangular array and seted up a plurality of cylindricality chambeies, every cylindricality intracavity all is provided with a flexible holder, and flexible holder includes telescopic link (14), spring (19), stopper (20) and rubber touch pad (21), telescopic link (14) one end fixed connection rubber touches pad (21), telescopic link (14) other end stretches into cylindricality intracavity and fixed connection stopper (20), and spring (19) are fixed to be set up at cylindricality intracavity and fixed connection stopper (20).

4. The welding jig for automobile bodies according to claim 3, characterized in that: a plurality of constant head tanks (22) that are linear evenly distributed are seted up to the lower terminal surface of telescopic link (14), vertical spout has all been seted up on the left side of each row of cylindrical cavity, slidable mounting has drive rod (16) in the vertical spout, fixedly connected with multiunit L shape pull rod (17) on drive rod (16) lateral wall, the cooperation groove that holds L shape pull rod (17) is all seted up to the lower extreme of every cylindrical cavity, L shape pull rod (17) are close to the one end setting of telescopic link (14) and are circular-arc and insert and establish in constant head tank (22), the top of a plurality of drive rods (16) all connects in baffle (15) jointly, the up end that compresses tightly seat (4) is equipped with the fluting, slidable mounting baffle (15) in the fluting, the one end fixed connection of baffle (15) presses board (23), baffle (15) other end fixed connection multiunit S shape shell fragment (18).

5. The welding fixture for the automobile body according to claim 1, wherein: the upper surface of processing platform (1) is equipped with the spout, and the bottom of two sets of fly leafs all is equipped with four universal balls (8) that are the rectangle and distribute, and universal ball (8) and spout roll fit bear the lower extreme of seat (24) and be provided with adjustable lifting support.

6. The welding fixture for the automobile body according to claim 1, wherein: the hydraulic cylinder (6) is a single-piston-rod hydraulic cylinder, the lower surfaces of the front end cover and the rear end cover of the hydraulic cylinder (6) are fixedly connected with the vertical block (7), and the vertical block (7) is fixedly connected with the processing platform (1).