CN213646448U - White automobile body welding jig that can locally switch over fast - Google Patents

Abstract

The utility model discloses a white car body welding fixture capable of being rapidly switched locally, which comprises a first fixture component, wherein a switchable second fixture component is arranged on the first fixture component; one of the first clamp assembly and the second clamp assembly is provided with a first air exhaust connecting port, and the other one of the first clamp assembly and the second clamp assembly is provided with a second air exhaust connecting port; one of the two ends is provided with a wireless coupling transmitting end, and the other end is provided with a wireless coupling receiving end; when the second clamp assembly is installed on the first clamp assembly, the first air exhaust connecting port is connected with the second air exhaust connecting port, and the wireless coupling transmitting end is connected with the wireless coupling receiving end. The welding fixture is composed of a first fixture assembly and a second fixture assembly, the first fixture assembly is used for clamping structures with small differences on parts to be machined, the second fixture assembly is used for clamping structures with large differences on the parts to be machined, and when different parts to be machined need to be machined, the corresponding second fixture assemblies can be switched.

Description

White automobile body welding jig that can locally switch over fast

Technical Field

The utility model relates to a white automobile body welding jig technical field especially relates to a but white automobile body welding jig of local fast switch over.

Background

In automobile manufacturing, metal plates at different parts on a body-in-white need to be formed by welding a plurality of parts; in the welding process, a welding fixture with an adaptive structure is required to be matched with welding work, and a clamping mechanism driven by driving components such as an air cylinder is arranged on the welding fixture; generally, the same part structure of the same vehicle type has larger or smaller difference, and different welding fixtures are needed for welding; however, because the parts of the body-in-white are huge in size, the used welding fixtures are also large in size, a plurality of sets of welding fixtures occupy large area and are inconvenient to replace, and the manufacturing cost of the welding fixtures is also very high; therefore, in the industry, universal welding fixtures can be manufactured for parts with different models but smaller structural differences, clamping mechanisms with various structures are generally arranged at the same positioning position, and the clamping mechanisms with corresponding structures are selected when parts with different models are processed; however, this kind of mode only is fit for the part that overall structure difference is less, and for some parts of different models, it may have some structural differences big, and some structural differences are little, and this kind of condition still needs to replace the whole set of welding jig just can satisfy processing at present, and is very inconvenient.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a but white automobile body welding jig of local fast switch-over can solve to some parts of the big and different models that partial structure difference is little of partial structure difference, needs the problem of whole switching welding jig.

The technical scheme of the utility model is realized like this:

a body-in-white welding fixture capable of being locally and rapidly switched comprises a first fixture assembly, a second fixture assembly and a first clamping device, wherein the first fixture assembly is provided with a switchable second fixture assembly; one of the first clamp assembly and the second clamp assembly is provided with a first air exhaust connecting port, and the other one of the first clamp assembly and the second clamp assembly is provided with a second air exhaust connecting port; one of the two ends is provided with a wireless coupling transmitting end, and the other end is provided with a wireless coupling receiving end; when the second clamp assembly is installed on the first clamp assembly, the first air exhaust connecting port is connected with the second air exhaust connecting port, and the wireless coupling transmitting end is connected with the wireless coupling receiving end.

As a further alternative of the locally fast-switching body-in-white welding jig, the first jig assembly comprises a first bearing platform and a plurality of first clamping mechanisms arranged on the first bearing platform, and the second jig assembly comprises a second bearing platform and a plurality of second clamping mechanisms arranged on the second bearing platform; the second bearing platform is detachably fixed on the first bearing platform; the first clamping mechanism and the second clamping mechanism clamp and fix the part to be processed together.

As a further alternative of the white body welding fixture capable of being locally and rapidly switched, a plurality of supporting columns for bearing the second bearing platform are arranged on the first bearing platform, and cushion blocks corresponding to the supporting columns are arranged at the bottom of the second bearing platform; the end part of at least one support column is provided with a positioning pin, and the cushion block corresponding to the support columns is provided with positioning holes corresponding to the positioning pins; and at least one supporting column is provided with a locking mechanism for fixing the cushion block on the supporting column.

As a further alternative of the locally fast-switching body-in-white welding jig, the locking mechanism comprises a locking cylinder and a pressing block which is driven by the locking cylinder to press the cushion block on the supporting column from top to bottom.

As a further alternative to the locally fast-switching body-in-white welding jig, the welding jig further comprises a handling device for placing the second jig assembly on the first jig assembly; further comprising a removal device for removing the second clamp assembly from the first clamp assembly.

As a further alternative to the locally fast-switching body-in-white welding jig, the handling device is a six-axis robot.

As a further alternative of the partially fast-switching body-in-white welding jig, the removing device includes a bracket, a moving table moving on the bracket, and a push-pull air cylinder driving the moving table to move; the movable table is provided with a third bearing platform which can be lifted to jack up the second clamp assembly, and the third bearing platform is driven to lift by a lifting cylinder arranged on the movable table.

As a further alternative of the white body welding fixture capable of locally and rapidly switching, a plurality of clamping seats are arranged on the third bearing platform, and a plurality of clamping blocks corresponding to the clamping seats are arranged at the bottom of the second bearing platform; when the clamping block is clamped with the clamping seat, the second bearing platform and the third bearing platform are relatively fixed in the horizontal direction.

As a further alternative of the white body welding fixture capable of being locally and rapidly switched, a guide rail is arranged on the support, and a guide block in sliding fit with the guide rail is arranged at the bottom of the mobile station.

As a further alternative of the white body welding fixture capable of being locally and rapidly switched, the push-pull air cylinder is fixed on the support, and a piston rod of the push-pull air cylinder is connected with the mobile station; and a baffle plate for shielding the piston rod extends from the moving platform in the direction of the push-pull cylinder, and the baffle plate is positioned above the piston rod.

The beneficial effects of the utility model are that: the welding fixture is composed of a first fixture assembly and a second fixture assembly so as to clamp the parts to be machined together; the first clamp assembly is used for clamping a structure with small difference on the part to be machined, the second clamp assembly is used for clamping a structure with large difference on the part to be machined, when different parts to be machined need to be machined, the corresponding second clamp assemblies can be switched, the welding clamp does not need to be integrally replaced, the parts with more models can be machined on the same production line conveniently, and the production cost is saved; and in addition, whether the second clamp assembly is installed on the first clamp assembly is judged through the connection between the first gas exhaust connecting port and the second gas exhaust connecting port and the connection between the wireless coupling transmitting end and the wireless coupling receiving end, and if the second clamp assembly is not installed, the second clamp assembly cannot be supplied with gas and cannot be electrically controlled, so that the stability and the safety of the whole welding clamp are ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a welding jig for welding a body-in-white capable of local fast switching according to the present invention;

FIG. 2 is a schematic structural view of the first clamp assembly;

FIG. 3 is one of the schematic structural views of the second clamp assembly;

FIG. 4 is a second schematic structural view of the second clamp assembly;

FIG. 5 is a schematic view of the connection structure of the first clamp assembly and the second clamp assembly;

FIG. 6 is a schematic structural view of the removing device;

FIG. 7 is a schematic view of the mounting structure of the second clamp assembly and the first clamp assembly;

FIG. 8 is an exploded view of the second clamp assembly and the first clamp assembly;

fig. 9 is an enlarged view of a in fig. 7.

In the figure: 1. a first clamp assembly; 11. a first bearing platform; 12. a first clamping mechanism; 13. a first air exhaust connection port; 14. a wireless coupling transmitting terminal; 15. a support pillar; 151. positioning pins; 16. a locking mechanism; 161. locking the air cylinder; 162. briquetting; 2. a second clamp assembly; 21. a second platform; 211. cushion blocks; 212. a clamping block; 22. a second clamping mechanism; 23. a second air exhaust connection port; 24. a wireless coupling receiving end; 3. a removal device; 31. a support; 311. a guide rail; 32. a mobile station; 321. a baffle plate; 33. a push-pull cylinder; 34. a third bearing platform; 341. a card holder; 35. and a lifting cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may mean that the first feature is directly above or obliquely above the second feature, or that only the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1-9, there is shown a partially quick-change over body-in-white welding jig comprising a first jig assembly 1 having a second switchable jig assembly 2 thereon; one of the first clamp assembly 1 and the second clamp assembly 2 is provided with a first air exhaust connecting port 13, and the other one is provided with a second air exhaust connecting port 23; one of the two ends is provided with a wireless coupling transmitting end 14, and the other end is provided with a wireless coupling receiving end 24; when the second clamp assembly 2 is mounted on the first clamp assembly 1, the first air exhaust connection port 13 is connected to the second air exhaust connection port 23, and the wireless coupling transmitting terminal 14 is connected to the wireless coupling receiving terminal 24.

Particularly, the welding fixture is particularly suitable for production lines which need to process parts of various models, and the parts are characterized by having parts with small structural difference and parts with large structural difference; the welding fixture is composed of a first fixture assembly 1 and a second fixture assembly 2 so as to clamp the parts to be machined together; the first clamp assembly 1 is used for clamping a structure with small difference on a part to be machined, the second clamp assembly 2 is used for clamping a structure with large difference on the part to be machined, when different parts to be machined need to be machined, the corresponding second clamp assemblies 2 can be switched, the welding clamps do not need to be integrally replaced, the parts with more models can be conveniently machined on the same production line, and the production cost is saved. When the second clamp assembly 2 is switched, if a new second clamp assembly 2 is mounted on the first clamp assembly 1, the structure is not good enough, so that a part cannot be clamped and fixed sufficiently when the part is machined, and industrial accidents such as part splashing and the like may occur; whether the second clamp assembly 2 is installed on the first clamp assembly 1 can be judged through whether the first air exhaust connection port 13 and the second air exhaust connection port 23 are connected, and whether the wireless coupling transmitting end 14 and the wireless coupling receiving end 24 are connected, wherein the first air exhaust connection port 13 and the second air exhaust connection port 23 are used for connecting and then ventilating and are used by components such as an air cylinder on the second clamp assembly 2; the wireless coupling transmitting end 14 and the wireless coupling receiving end 24 are used for connecting and then communicating signals, so that various magnetic switches and inductors on the second clamp assembly 2 can be controlled; if the welding fixture is not installed, the second fixture assembly 2 cannot be supplied with air and cannot be electrically controlled, and workers are reminded in a phase-changing mode, so that the stability and the safety of the whole welding fixture are guaranteed.

In the above specific scheme, the first clamp assembly 1 includes a first bearing platform 11 and a plurality of first clamping mechanisms 12 arranged on the first bearing platform 11, and the second clamp assembly 2 includes a second bearing platform 21 and a plurality of second clamping mechanisms 22 arranged on the second bearing platform 21; the second bearing platform 21 is detachably fixed on the first bearing platform 11; the first clamping mechanism 12 and the second clamping mechanism 22 clamp and fix the part to be processed together. It should be noted that the first clamping mechanism 12 and the second clamping mechanism 22 include various cylinders, magnetic switches, and even sensors, which are the prior art in the existing automobile industry, and therefore detailed descriptions of specific structures thereof are omitted here. After the first air exhaust connecting port 13 is connected with the second air exhaust connecting port 23, and the wireless coupling transmitting end 14 is connected with the wireless coupling receiving end 24, the second clamping mechanism 22 can work normally.

In some specific embodiments, in order to enable the second fixture assembly 2 to be stably fixed on the first fixture assembly 1, referring to fig. 2, 3, 4, 7, 8 and 9, a plurality of supporting columns 15 for bearing the second platform 21 are provided on the first platform 11, and a cushion block 211 corresponding to the supporting column 15 is provided at the bottom of the second platform 21; the end of at least one support column 15 is provided with a positioning pin 151, and the cushion block 211 corresponding to the support columns 15 is provided with positioning holes (not marked in the figure) corresponding to the positioning pins 151; at least one support column 15 is provided with a locking mechanism 16 for fixing the cushion block 211 on the support column 15. Specifically, the locking mechanism 16 includes a locking cylinder 161 and a pressing block 162 driven by the locking cylinder 161 to press the cushion block 211 against the supporting column 15 from top to bottom. In this way, after the positioning hole is butted with the positioning pin 151, the second bearing platform 21 and the first bearing platform 11 are kept relatively fixed in the horizontal direction; on the basis, the cushion block 211 is fixed on the supporting column 15 through the locking mechanism 16, and further the second bearing platform 21 and the first bearing platform 11 are kept relatively fixed in the horizontal direction or the vertical direction.

In some specific embodiments, in order to enable a quick switching of the second clamp assembly 2 to maintain machining efficiency, with reference to fig. 1-9, the welding clamp further comprises handling means (not shown) for placing the second clamp assembly 2 on the first clamp assembly 1; and a removing device 3 for removing the second clamp assembly 2 from the first clamp assembly 1. Wherein, the carrying device is a six-axis manipulator. Specifically, in the process of switching the second clamp assembly 2, there are two steps, namely, removing the original second clamp assembly 2 from the first clamp assembly 1 and placing a new second clamp assembly 2 on the first clamp assembly 1; in order to ensure the processing efficiency, the original second clamp assembly 2 is moved away from the first clamp assembly 1 through the removing device 3, and a new second clamp assembly 2 is placed on the first clamp assembly 1 through the carrying device, and the two steps are almost performed synchronously, so that the switching time is effectively saved, and the switching efficiency is improved.

In the above embodiment, referring to fig. 6, 7 and 8, the removing device 3 includes a support 31, a moving table 32 moving on the support 31, and a push-pull cylinder 33 driving the moving table 32 to move; the moving platform 32 is provided with a third bearing platform 34 which can be lifted to jack up the second clamp assembly 2, and the third bearing platform 34 is driven to lift by a lifting cylinder 35 arranged on the moving platform 32. In other words, when the second clamp assembly 2 needs to be switched, the locking mechanism 16 releases the second bearing platform 21, the moving platform 32 moves to the position below the second bearing platform 21 under the driving of the push-pull air cylinder 33, the lifting air cylinder 35 drives the third bearing platform 34 to ascend, so that the third bearing platform 34 jacks up the second bearing platform 21 until the second bearing platform 21 is disengaged from the positioning pin 151, and then the moving platform 32 moves to remove the second bearing platform 21; in the above process, the carrying device will pick up a new second clamp assembly 2 at the set position and place it on the supporting column 15, and the locking mechanism 16 is fixed again; the welding jig starts machining, and at the same time, the carrying device grips and places the second jig assembly 2 on the moving table 32 to the set position.

In some specific embodiments, in order to ensure that the second platform 21 can be kept stable and not fall off when the third platform 34 jacks up the second platform 21, referring to fig. 4 and 6, a plurality of clamping seats 341 are provided on the third platform 34, and a plurality of clamping blocks 212 corresponding to the clamping seats 341 are provided at the bottom of the second platform 21; when the fixture block 212 is engaged with the fixture seat 341, the second platform 21 and the third platform 34 are relatively fixed in the horizontal direction.

In the above embodiment, in order to ensure that the mobile station 32 stably moves on the support 31, referring to fig. 4, a guide rail 311 is disposed on the support 31, and a guide block (not labeled) slidably engaged with the guide rail 311 is disposed at the bottom of the mobile station 32.

In some specific embodiments, in order to avoid welding dust falling onto the piston rod of the push-pull cylinder 33, the operation of the push-pull cylinder 33 is affected, so that the original second clamp assembly 2 is not removed in time and an industrial accident occurs when the new second clamp assembly 2 collides. The push-pull air cylinder 33 is fixed on the bracket 31, and a piston rod of the push-pull air cylinder 33 is connected with the mobile station 32; a baffle 321 for shielding the piston rod extends from the moving table 32 in the direction of the push-pull cylinder 33, and the baffle 321 is located above the piston rod. Thus, the baffle 321 can shield the piston rod, and welding scraps are prevented from falling on the piston rod.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A body-in-white welding fixture capable of being locally and rapidly switched is characterized by comprising a first fixture assembly, wherein the first fixture assembly is provided with a second fixture assembly capable of being switched; one of the first clamp assembly and the second clamp assembly is provided with a first air exhaust connecting port, and the other one of the first clamp assembly and the second clamp assembly is provided with a second air exhaust connecting port; one of the two ends is provided with a wireless coupling transmitting end, and the other end is provided with a wireless coupling receiving end; when the second clamp assembly is installed on the first clamp assembly, the first air exhaust connecting port is connected with the second air exhaust connecting port, and the wireless coupling transmitting end is connected with the wireless coupling receiving end.

2. The vehicle body-in-white welding fixture capable of being switched locally and rapidly as claimed in claim 1, wherein the first fixture assembly comprises a first bearing platform and a plurality of first clamping mechanisms arranged on the first bearing platform, and the second fixture assembly comprises a second bearing platform and a plurality of second clamping mechanisms arranged on the second bearing platform; the second bearing platform is detachably fixed on the first bearing platform; the first clamping mechanism and the second clamping mechanism clamp and fix the part to be processed together.

3. The vehicle body-in-white welding fixture capable of being switched locally and rapidly according to claim 2, wherein a plurality of supporting columns for bearing the second bearing platform are arranged on the first bearing platform, and cushion blocks corresponding to the supporting columns are arranged at the bottom of the second bearing platform; the end part of at least one support column is provided with a positioning pin, and the cushion block corresponding to the support columns is provided with positioning holes corresponding to the positioning pins; and at least one supporting column is provided with a locking mechanism for fixing the cushion block on the supporting column.

4. The partially fast-switching body-in-white welding fixture according to claim 3, wherein the locking mechanism comprises a locking cylinder and a pressing block driven by the locking cylinder to press the cushion block against the supporting pillar from top to bottom.

5. The partially fast-switching body-in-white welding fixture of claim 3, further comprising handling means for placing said second fixture assembly on said first fixture assembly; further comprising a removal device for removing the second clamp assembly from the first clamp assembly.

6. The partially fast-switching body-in-white welding jig according to claim 5, wherein the handling device is a six-axis robot.

7. The body-in-white welding fixture capable of being locally and rapidly switched according to claim 5, wherein the removing device comprises a bracket, a moving platform moving on the bracket and a push-pull air cylinder driving the moving platform to move; the movable table is provided with a third bearing platform which can be lifted to jack up the second clamp assembly, and the third bearing platform is driven to lift by a lifting cylinder arranged on the movable table.

8. The welding fixture for white bodies capable of being locally and rapidly switched according to claim 7, wherein a plurality of clamping seats are arranged on the third bearing platform, and a plurality of clamping blocks corresponding to the clamping seats are arranged at the bottom of the second bearing platform; when the clamping block is clamped with the clamping seat, the second bearing platform and the third bearing platform are relatively fixed in the horizontal direction.

9. The vehicle body-in-white welding fixture capable of realizing local quick switching according to claim 7, wherein a guide rail is arranged on the support, and a guide block which is in sliding fit with the guide rail is arranged at the bottom of the mobile station.

10. The vehicle body-in-white welding fixture capable of being switched locally and rapidly according to claim 7, wherein the push-pull air cylinder is fixed on the support, and a piston rod of the push-pull air cylinder is connected with the moving platform; and a baffle plate for shielding the piston rod extends from the moving platform in the direction of the push-pull cylinder, and the baffle plate is positioned above the piston rod.

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