CN220093615U

CN220093615U - Automobile body welding jig

Info

Publication number: CN220093615U
Application number: CN202321364329.7U
Authority: CN
Inventors: 何涛
Original assignee: Shanghai Yubo Automobile Equipment Co ltd
Current assignee: Shanghai Yubo Automobile Equipment Co ltd
Priority date: 2023-05-31
Filing date: 2023-05-31
Publication date: 2023-11-28
Anticipated expiration: 2033-05-31

Abstract

The utility model discloses an automobile body welding fixture, which relates to the relevant field of automobile body welding fixtures and comprises a hydraulic telescopic rod, wherein a limit frame is fixed at the front end of the hydraulic telescopic rod through the inner side of a through hole in the middle of the limit frame and is fixedly inserted into the middle of the rear end of a connecting piece, and a turnover assembly is arranged to enable a motor to indirectly drive the bottom surface of an automobile body to turn over to the surface through the turnover rod, so that the bottom surface of the automobile body is prevented from being welded by manually moving the automobile body to turn over after the surface of the automobile body is welded, and the welding efficiency of the automobile body welding fixture is improved; through having set up buffer unit, make the buffer board indirectly drive the piston and can extrude the inside gas of buffer tank for when the gas pressure in the buffer tank is greater than 4Mpa, pressure transmitter indirectly stops the shrink through external control ware control hydraulic telescoping rod, keeps current clamping force, avoids the clamping force too big, leads to the surface of automobile body to appear the indentation, thereby has improved the operating quality of automobile body welding jig.

Description

Automobile body welding jig

Technical Field

The utility model relates to the field of vehicle body welding clamps, in particular to a vehicle body welding clamp.

Background

The automobile welding is one of four processes of automobile production, and mainly teaches an automobile body structure, a typical automobile welding production line, a welding process flow, a welding method and a welding new technology which are commonly used in the automobile welding production, and simultaneously introduces a taping/binding process, a welding production line robot and electrical control, an automobile body welding quality control, an automobile body welding workshop management and welding equipment maintenance and welding safety production.

For example, chinese patent publication No. CN214721782U discloses a car body welding fixture, which comprises a base, the upper end fixed mounting of base has an upper supporting seat, the upper surface of upper supporting seat is arranged and is had the fixed slot, and wherein two the inside swing joint of fixed slot has two draw runner plates, the lower extreme swing joint of draw runner plate has the fixed footing, connect through first screw thread post between draw runner plate and the fixed footing, the top fixed mounting of first screw thread post has the support frame.

In the above patent, when the existing automobile body welding fixture is in contact with an automobile body, the automobile body is extruded, so that the surface of the automobile body is dented, the quality of the automobile body is affected, and the working quality of the automobile body welding fixture is reduced; and the existing automobile body welding fixture is fixed on a machine tool, and the automobile body needs to be manually moved to turn over after the surface of the automobile body is welded to weld the bottom surface of the automobile body, so that the welding efficiency of the automobile body welding fixture is reduced.

Disclosure of Invention

Accordingly, in order to solve the above-described drawbacks, the present utility model provides an automotive body welding jig herein.

The utility model is realized in such a way, and a welding fixture for an automobile body is constructed, the welding fixture comprises a hydraulic telescopic rod, a limiting frame is fixed at the front end of the hydraulic telescopic rod through the inner side of a through hole in the middle of the limiting frame and is fixedly inserted into the middle of the rear end of a connecting piece, the upper end and the lower end of the connecting piece are respectively and rotatably connected with the upper end and the lower end of two groups of transmission rods, the upper end and the lower end of the two groups of transmission rods are respectively and rotatably connected with the upper end and the lower end of two groups of clamping rods, and the rear end of the two groups of clamping rods are respectively and rotatably connected with the upper end and the lower end of the front end of the limiting frame;

characterized by further comprising: the middle part of the bottom end of the hydraulic telescopic rod is fixedly welded with the overturning assembly; the upper ends and the lower ends of the two groups of clamping rods are respectively provided with two groups of buffer assemblies; the flip assembly includes: the middle part of the bottom end of the hydraulic telescopic rod is fixedly welded with a turnover rod; the right end of the overturning rod and the middle part of the left end of the worm wheel coaxially rotate; the bottom end of the worm wheel is meshed with the middle insection at the top end of the worm; and the front end of the worm coaxially rotates with the output shaft of the motor.

Preferably, the flipping assembly further comprises: the rear end of the motor is fixed with the middle part of the front end of the limiting shell through bolts; the left end of the turning rod is rotationally connected with the top of the right end of the limiting plate; the support base, spacing shell and limiting plate bottom are fixed with the support base with both ends top welding about respectively.

Preferably, the buffer assembly includes: the upper ends and the lower ends of the two groups of clamping rods are respectively provided with a buffer box; the limiting groove is formed in the middle of the top end of the buffer box at the lower end of the clamping rod.

Preferably, the buffer assembly further comprises: the middle part of the right end of the buffer box at the lower end of the clamping rod is provided with the pressure transmitter; and the inner side of the buffer box at the lower end of the clamping rod is connected with a piston in a sliding manner.

Preferably, the buffer assembly further comprises: the sealing ring is fixedly stuck to the outer side surface of the piston; the buffer rod is fixedly welded at the middle part of the top end of the piston, and the outer side surface of the buffer rod is in sliding connection with the inner side of the limiting groove.

Preferably, the buffer assembly further comprises: the buffer plate is welded and fixed at the top end of the buffer rod; and the outer side surface of the buffer rod is sleeved with a return spring, and the top end of the return spring is elastically connected with the bottom end of the buffer plate.

Preferably, the sealing ring is made of SIL silicone rubber, and the width of the sealing ring is smaller than that of the piston.

The utility model has the following advantages: the present utility model provides an automotive body welding jig by improvement herein, with the following improvements over the same type of equipment:

according to the welding fixture for the automobile body, the turnover assembly is arranged, so that the motor indirectly drives the bottom surface of the automobile body to turn over to the surface through the turnover rod, and the phenomenon that the bottom surface of the automobile body is welded by manually moving the automobile body to turn over after the surface of the automobile body is welded is avoided, and the welding efficiency of the welding fixture for the automobile body is improved.

According to the automobile body welding fixture, the buffer assembly is arranged, so that the buffer plate indirectly drives the piston to squeeze gas in the buffer box, and when the gas pressure in the buffer box is greater than 4Mpa, the pressure transmitter indirectly controls the hydraulic telescopic rod to stop shrinking through the external controller, the existing clamping force is kept, and the phenomenon that the surface of an automobile body is pressed due to overlarge clamping force is avoided, so that the working quality of the automobile body welding fixture is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a perspective view of the flip assembly of the present utility model;

FIG. 3 is a right side cross-sectional view of the retention housing of the present utility model;

FIG. 4 is a schematic perspective view of a cushioning assembly according to the present utility model;

fig. 5 is a front cross-sectional view of a cushioning assembly of the present utility model.

Wherein: the hydraulic telescopic rod-1, the limiting frame-2, the connecting piece-3, the transmission rod-4, the clamping rod-5, the overturning component-6, the buffer component-7, the overturning rod-61, the worm wheel-62, the worm-63, the motor-64 the pressure transmitter comprises a limiting shell-65, a limiting plate-66, a supporting base-67, a buffer box-71, a limiting groove-72, a pressure transmitter-73, a piston-74, a sealing ring-75, a buffer rod-76, a buffer plate-77 and a return spring-78.

Detailed Description

The principles and features of the present utility model are described below with reference to fig. 1-5, the examples being provided for illustration only and not for limitation of the scope of the utility model. The utility model is more particularly described by way of example in the following paragraphs with reference to the drawings. Advantages and features of the utility model will become more apparent from the following description and from the claims. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the utility model.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Embodiment one:

referring to fig. 1-5, the welding fixture for an automobile body of the utility model comprises a hydraulic telescopic rod 1, wherein a limit frame 2 is fixed at the front end of the hydraulic telescopic rod 1 through the inner side of a through hole in the middle of the limit frame 2, and is fixedly inserted into the middle of the rear end of a connecting piece 3, the upper and lower ends of the connecting piece 3 are respectively and rotatably connected with the upper and lower ends of two groups of transmission rods 4, the upper and lower ends of the two groups of transmission rods 4 are respectively and rotatably connected with the upper and lower ends of two groups of clamping rods 5, and the rear ends of the two groups of clamping rods 5 are respectively and rotatably connected with the upper and lower ends of the front end of the limit frame 2;

characterized by further comprising: the overturning assembly 6 is welded and fixed in the middle of the bottom end of the hydraulic telescopic rod 1; the upper ends and the lower ends of the two groups of clamping rods 5 are respectively provided with two groups of buffer assemblies 7; the flipping assembly 6 comprises: the middle part of the bottom end of the hydraulic telescopic rod 1 is fixedly welded with a turning rod 61, the right end of the turning rod 61 and the middle part of the left end of the worm wheel 62 coaxially rotate, so that the worm wheel 62 drives the turning rod 61 to rotate, the bottom end of the worm wheel 62 is meshed with the middle tooth line at the top end of the worm 63, and the worm 63 drives the worm wheel 62 to rotate;

the front end of the worm 63 coaxially rotates with the output shaft of the motor 64, the rear end of the motor 64 is fixed with the middle part of the front end of the limiting shell 65 through bolts, the limiting shell 65 provides a fixed area for the motor 64, the left end of the overturning rod 61 is rotationally connected with the top of the right end of the limiting plate 66, the bottom ends of the limiting shell 65 and the limiting plate 66 are respectively welded and fixed with the tops of the left end and the right end of the supporting base 67, and the supporting base 67 is used for providing an installation area for the limiting shell 65 and the limiting plate 66.

The working principle of the automobile body welding fixture based on the embodiment 1 is as follows:

firstly, when the equipment is used, the equipment is firstly placed in a working area, and then the device is connected with an external power supply, so that the power supply required by the work of the equipment can be provided.

Secondly, after the surface of the vehicle body is welded, starting a motor 64 through an external controller, enabling the motor 64 to drive a worm wheel 62 to rotate through a worm 63, and enabling the worm wheel 62 to drive a turning rod 61 to turn backwards along the right end of a limiting plate 66;

thirdly, then, the overturned car body and the supporting base 67 are in a horizontal state, so that the bottom surface of the car body is overturned to the surface, and the situation that the car body needs to be manually moved to overturn after the surface of the car body is welded is avoided.

Embodiment two:

referring to fig. 1 to 5, in comparison with the first embodiment, the welding fixture for an automobile body of the present utility model further includes a buffer assembly 7: the damper assembly 7 includes: the buffer box 71, the upper and lower both ends of two groups of clamping rods 5 are equipped with the buffer box 71 respectively, the middle part of the top end of the buffer box 71 of the lower end of the clamping rod 5 is equipped with the stop slot 72, make the buffer box 71 offer the fixed area for the stop slot 72, the right end middle part of the buffer box 71 of the lower end of the clamping rod 5 is fitted with the pressure transducer 73, the inboard sliding connection of the buffer box 71 of the lower end of the clamping rod 5 has pistons 74, the lateral surface of the piston 74 is pasted and fixed with the seal ring 75, make the seal ring 75 play a sealing role;

the middle part welded fastening in the top of piston 74 has the buffer rod 76 and makes buffer rod 76 lateral surface and the inboard sliding connection of spacing groove 72, and buffer rod 76 top welded fastening has buffer plate 77, makes buffer rod 76 provide the installation region for buffer plate 77, and buffer rod 76 lateral surface cover is equipped with reset spring 78 and makes reset spring 78 top and buffer plate 77 bottom elastic connection, makes reset spring 78 play the reset effect, and sealing washer 75 material is SIL silicone rubber, and sealing washer 75 width is less than piston 74 width, makes sealing washer 75 play sealed effect.

In this embodiment:

firstly, a worker hoists and places a vehicle body part on the middle sides of two groups of buffer assemblies 7 through external equipment, at the moment, the vehicle body part has downward extrusion force on one group of buffer plates 77 on the bottom sides of the two groups of buffer assemblies 7, and then the worker adjusts the pressure of the hydraulic telescopic rod 1 through external pressure adjusting equipment, so that the worker drives the connecting piece 3 to shrink backwards and simultaneously drives the connecting piece 3 to drive two groups of clamping rods 5 to continuously clamp the vehicle body through the transmission rod 4, and the force of the two groups of buffer plates 77 for clamping the vehicle body is increased;

secondly, then, when the clamping force increases, make two sets of buffer plates 77 can simultaneously push piston 74 to slide outwards along the inside of buffer box 71 through buffer rod 76, make piston 74 can extrude the inside gas of buffer box 71 for gas pressure in buffer box 71 increases, when pressure is greater than 4Mpa, pressure transmitter 73 receives the pressure signal, simultaneously with pressure signal transmission to external controller, make external controller control hydraulic telescopic handle 1 stop the shrink, keep current clamping force, avoid the clamping force too big, lead to the surface of automobile body to appear the indentation.

According to the automobile body welding fixture, the turnover assembly 6 is arranged, so that the motor 64 indirectly drives the bottom surface of the automobile body to turn over to the surface through the turnover rod 61, the phenomenon that the bottom surface of the automobile body is welded by manually moving the automobile body to turn over after the surface of the automobile body is welded is avoided, and the welding efficiency of the automobile body welding fixture is improved; through having set up buffer unit 7, make buffer board 77 indirectly drive piston 74 can extrude the inside gas of buffer tank 71 for when the gas pressure in the buffer tank 71 is greater than 4Mpa, pressure transmitter 73 stops the shrink through external control ware control hydraulic telescoping rod 1 indirectly, keeps current clamping force, avoids the clamping force too big, leads to the surface of automobile body to appear the indentation, thereby has improved car body welding jig's operating quality.

The basic principle and main characteristics of the utility model and the advantages of the utility model are shown and described above, standard parts used by the utility model can be purchased from market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of the parts adopt conventional means such as mature bolt rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that the description is omitted.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides an automobile body welding jig, includes hydraulic telescoping rod (1), hydraulic telescoping rod (1) front end bolt fastening has spacing (2), the middle part of hydraulic telescoping rod (1) front end runs through spacing (2) middle part through-hole inboard and with connecting piece (3) rear end middle part grafting is fixed, both ends about connecting piece (3) are respectively with two sets of transfer line (4) both ends rotation connection about, both ends are respectively about two sets of transfer line (4) are connected with both ends rotation about two sets of clamping lever (5) respectively and make two sets of clamping lever (5) rear end and spacing (2) front end both ends rotation connection about respectively;

characterized by further comprising: the overturning assembly (6) is welded and fixed in the middle of the bottom end of the hydraulic telescopic rod (1); the upper ends and the lower ends of the two groups of clamping rods (5) are respectively provided with two groups of buffer assemblies (7); the flipping assembly (6) comprises: the middle part of the bottom end of the hydraulic telescopic rod (1) is fixedly welded with the turnover rod (61); the right end of the overturning rod (61) and the middle part of the left end of the worm wheel (62) coaxially rotate; the bottom end of the worm wheel (62) is meshed with middle insections at the top end of the worm (63); and the front end of the worm (63) rotates coaxially with the output shaft of the motor (64).

2. An automotive body weld fixture as set forth in claim 1 wherein: the flipping assembly (6) further comprises: the rear end of the motor (64) is fixed with the middle part of the front end of the limiting shell (65) through bolts; the left end of the turnover rod (61) is rotationally connected with the top of the right end of the limit plate (66); the support base (67), limit shell (65) and limiting plate (66) bottom respectively with support base (67) left and right sides both ends top welded fastening.

3. An automotive body weld fixture as set forth in claim 1 wherein: the cushioning assembly (7) comprises: the upper ends and the lower ends of the two groups of clamping rods (5) are respectively provided with a buffer box (71); the limiting groove (72) is formed in the middle of the top end of the buffer box (71) at the lower end of the clamping rod (5).

4. A welding jig for an automotive body as set forth in claim 3, wherein: the cushioning assembly (7) further comprises: the middle part of the right end of the buffer box (71) at the lower end of the clamping rod (5) is provided with the pressure transmitter (73); and the piston (74) is connected with the inner side of the buffer box (71) at the lower end of the clamping rod (5) in a sliding manner.

5. An automotive body weld fixture as set forth in claim 4 wherein: the cushioning assembly (7) further comprises: the sealing ring (75) is stuck and fixed on the outer side surface of the piston (74); and the buffer rod (76) is fixedly welded at the middle part of the top end of the piston (74), and the outer side surface of the buffer rod (76) is in sliding connection with the inner side of the limiting groove (72).

6. An automotive body weld fixture as set forth in claim 5 wherein: the cushioning assembly (7) further comprises: a buffer plate (77), wherein the top end of the buffer rod (76) is welded and fixed with the buffer plate (77); and a return spring (78), wherein the outer side surface of the buffer rod (76) is sleeved with the return spring (78) and the top end of the return spring (78) is elastically connected with the bottom end of the buffer plate (77).

7. An automotive body weld fixture as set forth in claim 5 wherein: the sealing ring (75) is made of SIL silicon rubber, and the width of the sealing ring (75) is smaller than that of the piston (74).