CN217096262U

CN217096262U - Welding frock positioning mechanism

Info

Publication number: CN217096262U
Application number: CN202122820830.7U
Authority: CN
Inventors: 王涛; 徐成丽; 梁素美; 刘杰; 甘国辉
Original assignee: Liuzhou Wuling Automobile Industry Co Ltd; Guangxi Automobile Group Co Ltd
Current assignee: Liuzhou Wuling Automobile Industry Co Ltd; Guangxi Automobile Group Co Ltd
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2022-08-02
Anticipated expiration: 2031-11-17

Abstract

The utility model discloses a welding tool positioning mechanism, which comprises a rear frame tool base, a fixed seat, a rotary support, a connecting block, a bolt and a positioning block; the positioning block is fixed at one end of the connecting block, and a positioning pin is arranged on a positioning surface of the positioning block; the other end of the connecting block is rotatably connected with the rotary support through a rotary pin, the rotary support and the connecting block are provided with corresponding pin holes, and the rotary support is fixed on the rear frame tooling base through a fixed seat; the positioning block can rotate relative to the rotary support under the state that the bolt is inserted into the bolt hole, so that the positioning block and the positioning pin are in avoidance positions. This positioning mechanism starts from easy and simple to handle and optimizes current frock, can realize the function to different motorcycle types, that the frock can fast switch over.

Description

Welding frock positioning mechanism

Technical Field

The utility model belongs to the technical field of the automotive production equipment technique and specifically relates to required positioning mechanism on the welding frock in the white automobile body welding production process of car.

Background

In recent years, automobiles are more and more popularized, the automobile industry is more and more competitive, the automobile models are more and more rapidly updated, and the automobile processing is developed towards small batch and multiple varieties.

In the vehicle type development process, in order to reduce the development cost as much as possible, the vehicle types with smaller differences are generally produced in a mixed line mode. For example, in a body-in-white welding line, there are generally many welding tools arranged to ensure the relative size and relative position of each part during welding. Along with increasing the motorcycle types with different configurations, the welding tool needs to be correspondingly increased to meet the production of newly configured motorcycle types, the increase of the motorcycle types can lead the structure of the welding tool to be more and more complex, some of the welding tool can even influence the production of the existing motorcycle types, and the beat of the production line is reduced, so that the tool developer needs to consider the mode of switching the tool to realize the production of different motorcycle types, and the waste of the production energy in the process of switching the motorcycle types is reduced as much as possible.

The frame is the frame rack structure who comprises two longerons and many crossbeams on the car, is the base member of car, the utility model provides a back frame indicates the latter half of frame.

Taking a certain welding production line as an example, the welding of two types of vehicle models is compatible at present on the rear frame welding splicing table, namely a vehicle model A and a vehicle model B, the two types of vehicles have difference points on the right front side of a rear frame part, the vehicle model A needs to be welded with an oil tank support, the vehicle model B needs to be welded with an oil pipe support, and the two types of supports do not coexist mutually.

There is not the problem when motorcycle type A produces, but when motorcycle type B produced, the positioning mechanism of oil tank support influences the welding passageway, and difficult welding, production efficiency is low. When welding, positioning mechanism fixes position motorcycle type A oil tank support and required welded welding seam, and motorcycle type A oil tank support can normally weld when back frame frock is overturning 180 degrees. When the automobile is switched to the automobile type B, the oil pipe support needs to be welded on the automobile type B, parts and welding seams of the oil pipe support are different from those of the automobile type A, and when the rear frame tool is turned over for 180 degrees, the oil tank support positioning tool of the automobile type A can shield an operation channel of a worker and is difficult to weld.

The existing solution is to realize the switching of the positioning of the tools of different vehicle types by disassembling and assembling the positioning module, that is, when producing the vehicle type B, the positioning mechanism of the oil tank bracket of the vehicle type A is disassembled to avoid interference, the tool switching is time-consuming and affects the production rhythm, the tool switching affects the positioning precision of the tool, and the positioning mechanism disassembled in addition is easy to lose when needing to be stored in a customized area.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a welding fixture positioning mechanism. This positioning mechanism starts from easy and simple to handle and optimizes current frock, can realize the function to different motorcycle types, that the frock can fast switch over.

In order to achieve the purpose, the utility model provides a welding tool positioning mechanism, which comprises a rear frame tool base, a fixed seat, a rotary support, a connecting block, a bolt and a positioning block; the positioning block is fixed at one end of the connecting block, and a positioning pin is arranged on a positioning surface of the positioning block; the other end of the connecting block is rotationally connected with the rotary support through a rotary pin, corresponding bolt holes are formed in the rotary support and the connecting block, and the rotary support is fixed on the rear frame tooling base through a fixing seat; the positioning block can rotate relative to the rotary support under the condition that the bolt is inserted into the bolt hole, so that the positioning block and the positioning pin are located at avoidance positions.

Optionally, the connecting block is in a shape of a "Z", one end of the connecting block is connected to the positioning block, and the other end of the connecting block is rotatably connected to the rotating support.

Optionally, the connecting block includes a first connecting block having a shape of "Γ", the positioning block is connected to a lateral portion of the first connecting block, and a second connecting block connected to a vertical portion of the first connecting block.

Optionally, the positioning block is connected with a transverse portion of the first connecting block through a side screw, and the second connecting block is connected with a vertical portion of the first connecting block through a front screw.

Optionally, the positioning block is located on one side of the end of the connecting block.

Optionally, the positioning block and the connecting block can rotate around the rotating pin by an angle of 130-160 degrees.

Optionally, after the rear frame tooling base is turned by 180 degrees, the connecting block is supported on the back surface of the rear frame tooling base, and the positioning block and the positioning pin are kept at the avoiding position.

Optionally, the rotating support is located at a front end of the rear frame tooling base.

Optionally, the connecting block is rotatably connected with the support plate through the rotating pin at a position lower than the rear frame tooling base.

Optionally, the rotating support comprises support plates arranged in parallel and at intervals, and one end of the connecting block, corresponding to the connecting block, is inserted into an accommodating space formed by the support plates and is rotatably connected with the support plates through the rotating pin.

The utility model provides a welding fixture positioning mechanism, its locating piece and locating pin can enough fix for rotatory support, also can be after removing the locking, it rotates for rotatory support to follow the connecting block, thereby be in when fixed and carry out welded operating position to certain motorcycle type, and be in after rotating and dodge the position, thereby can weld another kind of motorcycle type, only need can realize the production of different motorcycle types through rotatory mode, need not demolish tool positioning mechanism, avoided the influence of repeated dismouting in-process to tool positioning accuracy, the motorcycle type switches efficiently, switch efficiency and promote 90% for original design motorcycle type, the problem of welding channel interference has effectively been solved.

Drawings

Fig. 1 is a schematic structural diagram of a welding tool positioning mechanism disclosed in an embodiment of the present invention;

FIG. 2 is a schematic structural view of a positioning block and a positioning pin of the positioning mechanism of the welding tool shown in FIG. 1 in a working position;

FIG. 3 is a schematic structural view of a positioning block and a positioning pin of the positioning mechanism of the welding tool shown in FIG. 1 in an avoiding position;

fig. 4 is a top view of fig. 3 after being flipped 180 deg..

In the figure:

1. rear frame tooling base 2, fixed seat 3, rotary support 31, support plate 4, connecting block 41, first connecting block 42, second connecting block 5, bolt 6, positioning block 7, positioning pin 8, oil tank support 9, rotary pin 10 and oil pipe support

Detailed Description

In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description.

In this specification, terms such as "upper, lower, left, right" and the like are established based on positional relationships shown in the drawings, and depending on the drawings, the corresponding positional relationships may vary, and the direction defined by the characters is preferentially adopted in the direction defined by the characters in the specification, and therefore, the scope of protection is not absolutely limited; moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.

As shown in fig. 1, in a specific embodiment, the utility model provides a welding fixture positioning mechanism is applied to the welding production line of a car body in white, and this welding production line's welding of back frame welding piece platform two kinds of motorcycle types of can being compatible is motorcycle type A, motorcycle type B respectively, and there is the difference point in the right front side of back frame part for two kinds of motorcycle types, and wherein, motorcycle type A welded is oil tank support 8, and motorcycle type B welded is oil pipe support 10, and two kinds of mounting structure have great difference, can not general each other.

When welding, the welding tool positioning mechanism is used for positioning the oil tank support of the vehicle type A and a welding seam required to be welded, and when the rear frame tool is turned over by 180 degrees, the oil tank support 8 of the vehicle type A can be normally welded. When the vehicle type B is switched to, the oil pipe support 10 needs to be welded on the vehicle type B, parts and welding seams of the oil pipe support are different from those of the vehicle type A, and when the rear frame tool is turned over for 180 degrees, the oil tank support positioning tool of the vehicle type A can shield an operation channel of a worker.

To this end, the welding frock positioning mechanism after improving mainly comprises parts such as back frame frock base 1, fixing base 2, swivel support 3, connecting block 4, bolt 5 and locating piece 6.

The connecting block 4 is substantially in a "Z" shape and is composed of a first connecting block 41 and a second connecting block 42, the first connecting block 41 is substantially in a "Γ" shape, the positioning block 6 is connected to one side of the transverse portion of the first connecting block 41 and is connected with the transverse portion through a side screw, and the second connecting block 42 is connected to the vertical portion of the first connecting block 41 and is connected with the vertical portion through a front screw.

Be equipped with locating pin 7 on the locating surface of locating piece 6, during the use, motorcycle type A's oil tank support 8 is located on locating piece 6, and locating piece 6 is used for guaranteeing oil tank installation face Z degree of position on oil tank support 8, and locating pin 7 is then used for guaranteeing oil tank installation nut X, Y to degree of position on oil tank support 8 (see fig. 2).

The second connecting block 42 is rotatably connected with the rotary support 3, the rotary support 3 is located at the front end of the rear frame tooling base 1 and is provided with two support plates 31 which are parallel to each other and arranged at intervals, and the second connecting block 42 and the corresponding end thereof are inserted into an accommodating space formed by the support plates 31 and are rotatably connected with the support plates 31 through rotating pins 9 at positions lower than the rear frame tooling base 1.

As shown in fig. 2, the support plate 31 and the second connecting block 42 of the rotary support 3 are provided with a pin hole for inserting the pin 5 at a side of the rotary pin 9, and when the pin 5 is inserted, the rotary mechanism constituted by the first connecting block 41, the second connecting block 42, the positioning block 6 and the positioning pin 7 is connected to the rotary support 3 through the rotary pin 9 and the pin 5, and after the pin 5 is pulled out, the rotary mechanism constituted by the first connecting block 41, the second connecting block 42, the positioning block 6 and the positioning pin 7 is rotatable downward with respect to the rotary support 3.

The rotary support 3 is fixed on the rear frame tool base 1 through the fixing seat 2, and the fixing seat 2 is used for ensuring the connection of the whole set of positioning mechanism and the rear frame welding tool.

Referring to fig. 3 and 4, in a state that the plug 5 is inserted into the plug hole, the rotating mechanism formed by the first connecting block 41, the second connecting block 42, the positioning block 6 and the positioning pin 7 is relatively fixed to the rotating support 3, and the positioning block 6 and the positioning pin 7 are located at working positions, so that the fuel tank bracket 8 of the vehicle type a can be normally welded.

After the plug pin 5 is pulled out, the rotating mechanism composed of the first connecting block 41, the second connecting block 42, the positioning block 6 and the positioning pin 7 together can rotate, the rotating mechanism can rotate downwards around the rotating pin 9 by a maximum rotation angle of 150 degrees, and the positioning block 6 and the positioning pin 7 are in the avoidance position after the rotating mechanism rotates. Thus, when the oil pipe support 10 of the vehicle type B is welded, the tool rotates downwards by 150 degrees, after the tool overturns 180 degrees, the second connecting block 42 is supported on the back surface of the rear frame tool base 1, the positioning block 6 and the positioning pin 7 are still kept at the position which avoids the welding, and the welding of the oil pipe support 10 of the vehicle type B cannot be influenced.

The above embodiments are merely preferred embodiments of the present invention, and are not limited thereto, and different embodiments can be obtained by performing targeted adjustment according to actual needs. For example, the first connecting block 41 and the second connecting block 42 are of an integral structure; or the rotating support 3 and the fixed seat 2 are the same component, and the like. This is not illustrated here, since many implementations are possible.

This welding fixture positioning mechanism can weld two kind at least motorcycle types, only needs can realize the production of different motorcycle types through rotatory mode, need not demolish fixture positioning mechanism, has avoided the influence of repeated dismouting in-process to frock positioning accuracy, and the motorcycle type switches efficiently, switches efficiency for former design motorcycle type and promotes 90%, has effectively solved the problem that the welding passageway is interfered.

It is right above the utility model provides a welding frock positioning mechanism introduces in detail. The principle and the implementation of the present invention are explained by applying a specific embodiment, and the description of the above embodiment is only used to help understand the core idea of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. A welding tool positioning mechanism is characterized by comprising a rear frame tool base, a fixed seat, a rotary support, a connecting block, a plug pin and a positioning block; the positioning block is fixed at one end of the connecting block, and a positioning pin is arranged on a positioning surface of the positioning block; the other end of the connecting block is rotatably connected with the rotary support through a rotary pin, the rotary support and the connecting block are provided with corresponding pin holes, and the rotary support is fixed on the rear frame tooling base through a fixed seat; the positioning block can rotate relative to the rotary support under the state that the bolt is inserted into the bolt hole, so that the positioning block and the positioning pin are in avoidance positions.

2. The positioning mechanism for welding tools according to claim 1, wherein the connecting block is in a zigzag shape, one end of the connecting block is connected with the positioning block, and the other end of the connecting block is rotatably connected with the rotating support.

3. The welding tool positioning mechanism of claim 2, wherein the connecting block comprises a first connecting block and a second connecting block, the first connecting block is "Γ" shaped, the positioning block is connected to a lateral portion of the first connecting block, and the second connecting block is connected to a vertical portion of the first connecting block.

4. The welding tool positioning mechanism of claim 3 wherein the positioning block is coupled to the lateral portion of the first connecting block by a lateral screw and the second connecting block is coupled to the vertical portion of the first connecting block by a frontal screw.

5. The welding tool positioning mechanism of claim 2 wherein the locating block is located on one side of the end of the connecting block.

6. The welding tool positioning mechanism of claim 1 wherein the positioning block and connecting block are rotatable about the pivot pin through an angle of 130 ° to 160 °.

7. The welding tool positioning mechanism of claim 6, wherein the connecting block is supported on the back of the rear frame tool base after being flipped 180 degrees, and the positioning block and the positioning pin are maintained in an escape position.

8. The welding tool positioning mechanism of claim 1 wherein the swivel mount is located at a front end of the rear frame tool mount.

9. The welding tool positioning mechanism of claim 8 wherein the swivel support includes a support plate, the connection block being pivotally connected to the support plate by the swivel pin at a location below the rear frame tool mount.

10. The positioning mechanism for welding tools according to claim 9, wherein the rotary support comprises support plates arranged in parallel and spaced apart from each other, and the connecting block is inserted into the receiving space formed by the support plates at one end thereof and is rotatably connected with the support plates through the rotary pins.