Positioning switching structure for welding fixture and welding fixture assembly

Abstract

The utility model discloses a positioning switching structure for a welding fixture and a welding fixture assembly, the positioning switching structure comprises a common base, the common base is provided with a positioning pin seat, the positioning pin seat is provided with a positioning pin, the positioning pin is provided with a fixing seat, and the fixing seat is provided with a positioning pin. The fixing base can move along the positioning pin and can be fixed to a certain position, the fixing base is fixedly connected with the tool connecting block, and the tool connecting block and the welding clamp are fixedly installed. According to the positioning switching structure for the welding clamp, all parts are connected in a thread detachable mode, the switching time can be effectively shortened in the detaching process, the production efficiency is greatly improved, and the process capacity of improving the product size is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile welding devices, and in particular relates to a switching structure for a welding fixture and a welding fixture assembly. Background Art

[0002] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] With the rapid development of the automobile industry, under the background of automobile platform and modular design, the automobile manufacturing industry has been constantly innovating in technology, products and quality, and the degree of factory automation production is getting higher and higher. The four major vehicle manufacturing processes of punching, welding, coating and assembly are also constantly innovating. The same main parts are often used in the design of parts for different models, and then similar parts are matched for combination welding; the output of each model is different, especially when the output differs by several times, most of the docking equipment is designed for specific tooling, and it is impossible to achieve flexible switching between different workstations and multiple models, resulting in uneven tooling for switching production lines and a disguised increase in design labor costs and processing and manufacturing costs.

[0004] During the frame welding process, automobile manufacturers need to achieve flexible production and produce multiple frames on mixed lines. Some welding fixture units need to be switched frequently. During the switching of fixture units, it is necessary to disassemble and assemble the locating pins. Ordinary locating pins have a built-in threaded structure. When installing the locating pins, they need to be gently hammered into the holes of the welding fixture base plate with a hammer. When removing the locating pins, they need to be pulled out with a pin puller. During the pulling out process, the bolts on the pin puller must first be screwed into the locating pin threads, and then lifted up with force to pull out the locating pins. The operation is relatively complicated, the work efficiency is low, and it is easy to hurt your hands if you are not careful. In particular, due to space limitations, the pin puller cannot be connected to the ordinary locating pins of some fixture clamping units, so that the ordinary locating pins cannot be removed after being installed on the welding fixture base plate, which makes it impossible to switch the fixture units. Utility Model Content

[0005] The utility model aims to provide a positioning switching structure for a welding fixture and a welding fixture assembly, which can realize rapid switching and positioning of the welding fixture and improve the switching efficiency of the welding fixture.

[0006] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0007] In the first aspect, an embodiment of the utility model provides a positioning switching structure for a welding fixture, comprising a common base, a positioning pin seat is provided on the common base, a positioning pin is installed on the positioning pin seat, a fixed seat is installed on the positioning pin, the fixed seat can move along the positioning pin and can be fixed in a certain position, the fixed seat is fixedly connected to the tooling connection block, and the tooling connection block is fixedly installed with the welding fixture.

[0008] As a further technical solution, the common base adopts a rectangular plate structure, and a plurality of groups of positioning pin seat mounting holes are provided on the common base for mounting a plurality of positioning pin seats.

[0009] As a further technical solution, a fixing body with threads is arranged at the lower part of the positioning pin, and the fixing body is installed with the positioning pin seat through threads.

[0010] As a further technical solution, the positioning pin seat is provided with a threaded hole and a fixed installation hole.

[0011] As a further technical solution, the fixing seat is a square structure with a circular through hole, and the circular through hole passes through the positioning pin.

[0012] As a further technical solution, a threaded hole is provided on the fixing seat, the axis of the threaded hole is perpendicular to the axis of the circular through hole, and a threaded rod is installed in the threaded hole.

[0013] As a further technical solution, the tooling connection block is mounted on the side wall surface of the fixing seat by welding or screws.

[0014] As a further technical solution, the tooling connection block includes a connection block and a connection plate which are vertically arranged to each other, and the connection block and the connection plate are connected by reinforcing ribs.

[0015] In the second aspect, an embodiment of the utility model provides a welding fixture assembly, including the positioning switching structure for the welding fixture, a fixture base plate is installed on the tooling connection block, and a fixture unit mechanism, a control unit mechanism and a fixture pusher are arranged on the fixture base plate.

[0016] As a further technical solution, the connecting plate of the tooling connecting block is connected to the fixture base plate by bolts.

[0017] The beneficial effects of the above-mentioned embodiments of the utility model are as follows:

[0018] The utility model provides a positioning switching structure for a welding fixture, in which a positioning pin and a positioning pin seat are connected by means of threads, so that the positioning pin can be quickly disassembled to replace positioning pins of different diameters and heights, thereby meeting different installation and positioning requirements of different welding fixtures.

[0019] The utility model provides a positioning switching structure for a welding fixture, wherein a fixing seat is arranged on the positioning pin, the fixing seat can move on the positioning pin, the positioning pin and the fixing seat are fixed by a threaded rod, the fixing seat is also fixedly connected to a tooling connection block, and the welding fixture is installed by the tooling connection block to realize the positioning of the welding fixture in the height direction.

[0020] The positioning switching structure for welding fixtures provided by the utility model realizes that the positioning pin seats are installed in different positions by arranging multiple groups of pin seat installation holes on a common base, thereby enabling the tooling connector to be in different installation positions, thereby realizing rapid switching of the welding fixtures.

[0021] The utility model provides a positioning switching structure for a welding fixture, and each component is connected in a detachable threaded manner, which can effectively reduce the switching time during the disassembly process, greatly improve production efficiency, and enhance the process capability of product size. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0023] Figure 1 It is a schematic diagram of a positioning switching structure for a welding fixture of the utility model;

[0024] Figure 2 It is a structural schematic diagram of the common base of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the positioning pin seat of the utility model;

[0026] Figure 4 It is a schematic diagram of the structure of the positioning pin, the fixing seat and the threaded rod after installation of the utility model;

[0027] Figure 5 It is a structural schematic diagram of the tooling connection block of the utility model;

[0028] Figure 6 It is a structural schematic diagram of the welding fixture assembly of the utility model;

[0029] Figure 7 yes Figure 6 Cross-section view at AA in the middle.

[0030] The schematic diagram is for illustrative purposes only;

[0031] Among them, 1. Common base; 101. Pin seat mounting hole; 102. Fixed mounting hole; 2. Positioning pin seat; 201. Threaded hole; 202. Pin seat fixed mounting hole; 3. Fixed seat; 4. Tooling connecting block; 401. Connecting plate; 402. Connecting block; 403. Reinforcing rib; 5. Positioning pin; 501. Fixed body; 6. Threaded rod; 7. Fixture base plate; 8. Fixture unit mechanism; 9. Control unit mechanism; 10. Fixture push handle. DETAILED DESCRIPTION

[0032] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0033] Example 1

[0034] In a typical implementation of the present invention, Figure 1 As shown, a positioning switching structure for a welding fixture is provided, including a common base 1, on which a positioning pin seat 2 is arranged, on which a positioning pin 5 is installed, on which a fixing seat 3 is installed, and the fixing seat 3 can move along the positioning pin 5 and can be fixed at a certain position, and the fixing seat 3 is fixedly connected to a tooling connection block 4, and the tooling connection block 4 is fixedly installed with the welding fixture.

[0035] like Figure 2 As shown, the common base 1 adopts a rectangular plate structure, and a plurality of groups of pin seat mounting holes 101 are provided on the common base 1 for installing a plurality of positioning pin seats 2. Different positioning pin seats can be selected for installation according to the positioning needs of the welding fixture. Fixed mounting holes 102 are also provided on the four corners of the common base 1 for fixing the common base 1 on the ground or other base surfaces.

[0036] like Figure 3 As shown, a fixing body 501 with threads is provided at the lower part of the positioning pin 5, and the fixing body 501 is installed with the positioning pin seat 2 through threads, as shown in FIG. Figure 4 As shown, the positioning pin seat 2 adopts a square block structure, and is provided with a threaded hole 201 and a pin seat fixing installation hole 202, wherein the threaded hole 201 is located at the center position, and the pin seat fixing installation hole 202 is located at the four corners, and the pin seat fixing installation hole 202 corresponds to the positioning pin seat 2 installation hole on the common base 1, so that the positioning pin seat 2 is installed on the common base 1.

[0037] In this embodiment, the fixing seat 3 is a square structure with a circular through hole, and the circular through hole passes through the positioning pin 5. A threaded hole is provided on the fixing seat 3, and the axis of the threaded hole is perpendicular to the axis of the circular through hole. A threaded rod 6 is installed in the threaded hole, and the fixing seat 3 and the positioning pin 5 are fixed by tightening the threaded rod.

[0038] Furthermore, the tooling connection block 4 is mounted on the side wall surface of the fixing seat 3 by welding or screws, as shown in FIG. Figure 5 As shown, the tooling connection block 4 includes a connection block 402 and a connection plate 401 which are vertically arranged. The connection block 402 and the connection plate 401 are connected by a reinforcing rib 403. The connection plate is used to connect with the welding fixture. The connection strength is improved by the triangular reinforcing ribs.

[0039] When in use, the threaded rod can be removed, and then the locating pin can be removed, and the locating pins of different diameters and lengths can be replaced. The supporting surface and outer diameter of the locating pin can play a role in positioning and supporting the fixed seat and the tooling connection block, and then play a role in positioning and supporting the welding fixture; at the same time, the distance between the two tooling connection blocks can be achieved by changing the position of the locating pin seat, and the installation height requirements of different welding fixtures can be achieved by moving the upper and lower positions of the moving fixed seat on the locating pin, thereby playing a switching role.

[0040] The welding fixture provided in this embodiment has a positioning switching structure, and each component is connected in a detachable threaded manner, which can effectively reduce the switching time during the disassembly process, greatly improve production efficiency, and enhance the process capability of product size.

[0041] Example 2

[0042] In a typical embodiment of the present invention, a welding fixture assembly is provided, including the positioning switching structure for the welding fixture described in Example 1, such as Figure 6 and Figure 7 As shown, a fixture base plate 7 is installed on the tooling connection block 4 , and a fixture unit mechanism 8 , a control unit mechanism 9 and a fixture pusher 10 are arranged on the fixture base plate 7 .

[0043] Furthermore, the connecting plate of the tooling connecting block 4 is connected to the fixture base plate 7 by bolts.

[0044] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A positioning switching structure for a welding fixture, It is characterized in that It includes a common base, on which a positioning pin seat is arranged, on which a positioning pin is installed, on which a fixing seat is installed, and the fixing seat can move along the positioning pin and can be fixed at a certain position, the fixing seat is fixedly connected to a tooling connection block, and the tooling connection block is fixedly installed to a welding fixture.

2. The positioning switching structure for a welding fixture according to claim 1, It is characterized in that The common base adopts a rectangular plate structure, and a plurality of groups of positioning pin seat installation holes are arranged on the common base for installing a plurality of positioning pin seats.

3. The positioning switching structure for a welding fixture according to claim 1, It is characterized in that A fixing body with threads is arranged at the lower part of the positioning pin, and the fixing body is installed with the positioning pin seat through threads.

4. The positioning switching structure for a welding fixture as claimed in claim 3, It is characterized in that The positioning pin seat is provided with a threaded hole and a fixing installation hole.

5. The positioning switching structure for a welding fixture according to claim 1, It is characterized in that The fixing seat is a square structure with a circular through hole, and the circular through hole passes through the positioning pin.

6. The positioning switching structure for a welding fixture as claimed in claim 5, It is characterized in that The fixing seat is provided with a threaded hole, the axis of the threaded hole is perpendicular to the axis of the circular through hole, and a threaded rod is installed in the threaded hole.

7. The positioning switching structure for a welding fixture according to claim 5, It is characterized in that The tooling connection block is mounted on the side wall surface of the fixing seat by welding or screws.

8. The positioning switching structure for a welding fixture according to claim 1, It is characterized in that The tooling connection block comprises a connection block and a connection plate which are vertically arranged to each other, and the connection block and the connection plate are connected via reinforcing ribs.

9. A welding fixture assembly, It is characterized in that It comprises a positioning switching structure for a welding fixture as described in any one of claims 1 to 8, wherein a fixture base plate is installed on the tooling connection block, and a fixture unit mechanism, a control unit mechanism and a fixture pusher are arranged on the fixture base plate.

10. The welding fixture assembly according to claim 9, It is characterized in that The connecting plate of the tooling connecting block is connected to the fixture base plate through bolts.

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