Welding clamp for automobile water tank connecting plate assembly

Abstract

The utility model discloses a welding fixture for an automobile water tank connecting plate assembly. Comprising a first clamping device used for clamping a connecting plate body at a first end of the connecting plate body, a second clamping device used for clamping the connecting plate body and a nut at a second end of the connecting plate body, and a positioning device used for positioning a mounting bracket below the connecting plate body, the positioning device is located between the first clamping device and the second clamping device. According to the welding fixture for the automobile water tank connecting plate assembly, the clamping devices and the positioning devices are arranged at a plurality of preset positions and are matched with each other to jointly clamp all parts of the automobile water tank connecting plate assembly, so that the parts are prevented from being misplaced, the positioning accuracy of all the parts is ensured, and the clamping efficiency is improved; and the product quality of the welded automobile water tank connecting plate assembly is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of clamps, and specifically relates to a welding clamp for an automobile water tank connecting plate assembly. Background Art

[0002] The automobile radiator connecting plate assembly is welded together by the connecting plate body, mounting bracket and nut. During welding, welding tooling is required to clamp each component to ensure that each component is accurately positioned and fixed before welding can be carried out.

[0003] In the prior art, there is a lack of welding tools or fixtures that can accurately position and fix the various components of the automobile water tank connecting plate assembly.

[0004] For example, the patent document with the announcement number CN208437868U discloses a welding tool for the lower cross beam assembly of the water tank, including a first clamping device, a second clamping device, a third clamping device, a first positioning device for positioning the support, and a second positioning device for positioning the lower cross beam body, the first positioning device includes an upper positioning seat connected to the second clamping device, a lower positioning seat connected to the upper positioning seat, a first positioning pin arranged on the upper positioning seat, a first limit block, and a second limit block arranged opposite to the first limit block. The welding tool for the lower cross beam assembly of the automobile water tank of the utility model is provided with clamping devices and positioning devices at multiple preset positions to cooperate with each other to clamp the various components of the lower cross beam of the water tank, thereby avoiding the misalignment of the components, ensuring the accurate positioning of each component, improving the clamping efficiency, and improving the product quality of the lower cross beam of the water tank after welding; and by providing an anti-error device, it is possible to avoid the first support and the second support from being installed reversely. The technical solution disclosed in the patent document also cannot solve the technical problems described above. Utility Model Content

[0005] The utility model provides a welding fixture for an automobile water tank connecting plate assembly, which aims to realize accurate positioning and fixing of various components of the automobile water tank connecting plate assembly and improve the product quality of the automobile water tank connecting plate assembly after welding.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a welding fixture for an automobile radiator connecting plate assembly, comprising a first clamping device for clamping a connecting plate body at a first end of the connecting plate body, a second clamping device for clamping the connecting plate body and a nut at a second end of the connecting plate body, and a positioning device for positioning the mounting bracket below the connecting plate body, the positioning device being located between the first clamping device and the second clamping device.

[0007] The first clamping device includes a first clamping bracket, a first clamping arm rotatably arranged on the first clamping bracket, a first upper clamping block arranged on the first clamping arm, and a first lower clamping block arranged on the first clamping bracket and matched with the first upper clamping block.

[0008] A plurality of the first upper clamping blocks and the first lower clamping blocks are provided, and the number of the first upper clamping blocks and the number of the first lower clamping blocks are the same.

[0009] A first support is arranged on the first clamping bracket, and a first positioning pin for positioning the connecting plate body is arranged on the first support.

[0010] The second clamping device includes a second clamping bracket, a second clamping arm rotatably arranged on the second clamping bracket, a second upper clamping block and a third upper clamping block arranged on the second clamping arm, a second lower clamping block matched with the second upper clamping block, and a third lower clamping block matched with the third upper clamping block, and the second lower clamping block is arranged on the second clamping bracket.

[0011] A plurality of the second upper clamping blocks and the second lower clamping blocks are provided, and the number of the second upper clamping blocks and the number of the second lower clamping blocks are the same.

[0012] The third upper clamping block and the third lower clamping block are provided in one piece.

[0013] The second clamping bracket is provided with a second support and a third support, the second support is provided with a second positioning pin for positioning the connecting plate body, the third support is provided with a third positioning pin for positioning the nut, and the third positioning pin passes through the third lower clamping block.

[0014] The positioning device comprises a positioning seat and a first limiting block and a second limiting block arranged on the positioning seat. The first limiting block and the second limiting block are arranged relatively to each other, and there is a space between the first limiting block and the second limiting block for inserting the mounting bracket.

[0015] The positioning device also includes a positioning bracket and a positioning cylinder arranged on the positioning bracket. The positioning cylinder is connected to the positioning seat and is arranged vertically.

[0016] The automobile radiator connecting plate assembly welding fixture of the utility model provides clamping devices and positioning devices at multiple preset positions to cooperate with each other to clamp the various components of the automobile radiator connecting plate assembly, thereby avoiding component misalignment, ensuring the accurate positioning of each component, improving the clamping efficiency, and improving the product quality of the automobile radiator connecting plate assembly after welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] This specification includes the following drawings, which show the following contents:

[0018] Figure 1It is a structural schematic diagram of a welding fixture for an automobile water tank connecting plate assembly of the utility model;

[0019] Figure 2 is a schematic structural diagram of a first clamping device;

[0020] Figure 3 is a schematic structural diagram of a second clamping device;

[0021] Figure 4 It is a structural schematic diagram of a positioning device;

[0022] The markings in the figure are: 1. mounting bracket; 2. first clamping bracket; 3. first clamping arm; 4. first upper clamping block; 5. first lower clamping block; 6. connecting plate body; 7. first positioning pin; 8. positioning bracket; 9. positioning cylinder; 10. second clamping bracket; 11. second clamping arm; 12. second upper clamping block; 13. second lower clamping block; 14. third upper clamping block; 15. third lower clamping block; 16. second positioning pin; 17. third positioning pin; 18. positioning seat; 19. first limit block; 20. second limit block; 21. first driver; 22. second driver; 23. nut; 24. base. DETAILED DESCRIPTION

[0023] The specific implementation methods of the utility model are further explained in detail below with reference to the accompanying drawings through the description of embodiments, with the aim of helping technicians in the field to have a more complete, accurate and in-depth understanding of the concept and technical solution of the utility model and facilitating its implementation.

[0024] like Figures 1 to 4 As shown, the utility model provides a welding fixture for an automobile water tank connecting plate assembly, including a base 24, a first clamping device for clamping the connecting plate body 6 at the first end of the connecting plate body 6, a second clamping device for clamping the connecting plate body 6 and a nut 23 at the second end of the connecting plate body 6, and a positioning device for positioning the mounting bracket 1 below the connecting plate body 6, and the positioning device is located between the first clamping device and the second clamping device.

[0025] Specifically, if Figure 1 As shown, the automobile water tank connecting plate assembly is welded by a connecting plate body 6, a mounting bracket 1 and a nut 23. The mounting bracket 1 is roughly a U-shaped structure, and the connecting plate body 6 is a Z-shaped structure. The mounting bracket 1 is welded to the connecting plate body 6 at a middle position in the length direction of the connecting plate body 6, and the nut 23 is welded to the connecting plate body 6 at one end in the length direction of the connecting plate body 6.

[0026] like Figure 1As shown, the positioning device, the first clamping device and the second clamping device are all vertically arranged on a horizontally placed base 24, and the first clamping device, the second clamping device and the positioning device are on the same straight line parallel to the first direction, the first direction is a horizontal direction and the first direction is parallel to the length direction of the base 24.

[0027] like Figure 1 and Figure 2 As shown, the first clamping device includes a first clamping bracket 2, a first clamping arm 3 rotatably arranged on the first clamping bracket 2, a first upper clamping block 4 arranged on the first clamping arm 3, a first lower clamping block 5 arranged on the first clamping bracket 2 and matched with the first upper clamping block 4, and a first driver 21 arranged on the first clamping bracket 2 and used to provide a driving force for the first clamping arm 3 to rotate, and the rotation center line of the first clamping arm 3 is parallel to the first direction. A plurality of first upper clamping blocks 4 and first lower clamping blocks 5 are provided, and the number of first upper clamping blocks 4 and first lower clamping blocks 5 is the same. The first lower clamping block 5 cooperates with the first upper clamping block 4 to clamp the connecting plate body 6 at one end of the connecting plate body 6. In the clamping state, the first lower clamping block 5 is located below the connecting plate body 6 and fits with the bottom surface of the connecting plate body 6, and the first upper clamping block 4 is located above the connecting plate body 6 and fits with the top surface of the connecting plate body 6. One end of the first clamping arm 3 is rotatably connected to the first driver 21, the first upper clamping block 4 is fixedly disposed at the other end of the first clamping arm 3, and the first clamping arm 3 is rotatably connected to the first clamping bracket 2 at a position between the two ends. When the first driver 21 is working, it can drive the first clamping arm 3 to flip up and down, thereby achieving the clamping and release of the connecting plate body 6. The first driver 21 is a cylinder or a hydraulic cylinder, the piston rod of the first driver 21 is rotatably connected to the first clamping arm 3, and the cylinder body of the first driver 21 is rotatably connected to the first clamping bracket 2.

[0028] like Figure 1 and Figure 2 As shown, in this embodiment, two first upper clamping blocks 4 are provided and the two first upper clamping blocks 4 are arranged in sequence along the length direction of the first clamping arm 3, and two first lower clamping blocks 5 are also provided and the two first lower clamping blocks 5 are on the same straight line parallel to the width direction of the connecting plate body 6, and the width direction of the connecting plate body 6 is a horizontal direction, so as to ensure reliable clamping of the connecting plate body 6. In the clamping state, the two first lower clamping blocks 5 cooperate with the two first upper clamping blocks 4 to clamp the connecting plate body 6 at both ends of the width direction of the connecting plate body 6, respectively, and the width direction of the connecting plate body 6 is parallel to the second direction, and the second direction is a horizontal direction and the second direction is perpendicular to the first direction.

[0029] like Figure 1 and Figure 2As shown, a first support is provided on the first clamping bracket 2, and a first positioning pin 7 for positioning the connecting plate body 6 is provided on the first support. The first positioning pin 7 is vertically arranged, and a positioning hole for inserting the first positioning pin 7 is arranged at the end of the connecting plate body 6.

[0030] like Figure 1 and Figure 4 As shown, the second clamping device includes a second clamping bracket 10, a second clamping arm 11 rotatably arranged on the second clamping bracket 10, a second upper clamping block 12 and a third upper clamping block 14 arranged on the second clamping arm 11, a second lower clamping block 13 arranged on the second clamping bracket 10 and matched with the second upper clamping block 12, a third lower clamping block 15 matched with the third upper clamping block 14, and a second driver 22 arranged on the second clamping bracket 10 and used to provide a driving force for the second clamping arm 11 to rotate, and the rotation center line of the second clamping arm 11 is parallel to the first direction. A plurality of second upper clamping blocks 12 and second lower clamping blocks 13 are provided, and the number of second upper clamping blocks 12 and second lower clamping blocks 13 is the same, and one third upper clamping block 14 and one third lower clamping block 15 are provided. The second lower clamp block 13 and the second upper clamp block 12 cooperate to clamp the connecting plate body 6 at the other end of the connecting plate body 6, and the third lower clamp block 15 and the third upper clamp block 14 cooperate to clamp the nut 23 at the other end of the connecting plate body 6. In the clamped state, the second lower clamp block 13 and the third lower clamp block 15 are located below the connecting plate body 6 and fit with the bottom surface of the connecting plate body 6, the second upper clamp block 12 is located above the connecting plate body 6 and fits with the top surface of the connecting plate body 6, and the third upper clamp block 14 is located above the connecting plate body 6 and fits with the top surface of the nut 23 located on the top surface of the connecting plate body 6. One end of the second clamp arm 11 is rotatably connected to the second driver 22, and the second upper clamp block 12 is fixedly arranged at the other end of the second clamp arm 11. The second clamp arm 11 is rotatably connected to the second clamp bracket 10 at the position between the two ends. When the second driver 22 is working, it can drive the second clamp arm 11 to flip up and down, thereby achieving the clamping and release of the connecting plate body 6 and the nut 23. The second driver 22 is a pneumatic cylinder or a hydraulic cylinder. The piston rod of the second driver 22 is rotatably connected to the second clamping arm 11 , and the cylinder body of the second driver 22 is rotatably connected to the second clamping bracket 10 .

[0031] like Figure 1 and Figure 3As shown, in this embodiment, two second upper clamping blocks 12 are provided and the two second upper clamping blocks 12 are arranged in sequence along the length direction of the second clamping arm 11, the third upper clamping block 14 is located between the two second upper clamping blocks 12, and two second lower clamping blocks 13 are also provided and the two second lower clamping blocks 13 are located on the same straight line parallel to the width direction of the connecting plate body 6, and the third lower clamping block 15 is located between the two second lower clamping blocks 13, so as to ensure reliable clamping of the connecting plate body 6 and the nut 23. In the clamping state, the two second lower clamping blocks 13 cooperate with the two second upper clamping blocks 12 to clamp the connecting plate body 6 at both ends in the width direction of the connecting plate body 6.

[0032] like Figure 1 and Figure 3 As shown, a second support and a third support are provided on the second clamping bracket 10, and a second positioning pin 16 for positioning the connecting plate body 6 is provided on the second support. The second positioning pin 16 is vertically arranged, and a positioning hole for inserting the second positioning pin 16 is provided at the end of the connecting plate body 6. The accurate positioning of the connecting plate body 6 is achieved through the cooperation of the first positioning pin 7 and the second positioning pin 16. The third support is provided with a third positioning pin 17 for positioning the nut 23, and the third positioning pin 17 passes through the third lower clamping block 15, and the third lower clamping block 15 is fixedly arranged on the third support. The third positioning pin 17 is vertically arranged, and a through hole for the third positioning pin 17 to pass through is provided on the third lower clamping block 15. The third positioning pin 17 is inserted into the center hole of the nut 23 to achieve accurate positioning of the nut 23.

[0033] like Figure 1 and Figure 4 As shown, the positioning device includes a positioning bracket 8, a positioning cylinder 9 disposed on the positioning bracket 8, a positioning seat 18, and a first limit block 19 and a second limit block 20 disposed on the positioning seat 18. The first limit block 19 and the second limit block 20 are arranged relative to each other, and there is a space between the first limit block 19 and the second limit block 20 for inserting the mounting bracket 1. The positioning bracket 8 is vertically disposed on the base 24, and the positioning cylinder 9 is vertically disposed on the positioning bracket 8. The positioning seat 18 is fixedly connected to the piston rod of the positioning cylinder 9, and the positioning cylinder 9 controls the positioning seat 18 to move in the vertical direction.

[0034] The first limit block 19 and the second limit block 20 are on the same straight line parallel to the first direction, the fourth positioning pin is fixedly set on the positioning seat 18, the axis of the fourth positioning pin is a vertical line, the fourth positioning pin is located between the first limit block 19 and the second limit block 20, and the mounting bracket 1 is provided with a positioning hole for inserting the fourth positioning pin. When positioning and fixing the mounting bracket 1, the mounting bracket 1 is located above the connecting plate body 6, and after the positioning cylinder 9 is extended, the fourth positioning pin is inserted upward into the positioning hole of the mounting bracket 1, the positioning seat 18 is located below the mounting bracket 1 and the positioning seat 18 presses the mounting bracket 1, the fourth positioning pin, the first limit block 19 and the second limit block 20 are all in a vertical state, the first limit block 19 and the second limit block 20 extend toward the top of the positioning seat 18, the first limit block 19 and the second limit block 20 are respectively located on one side of the mounting bracket 1 and the first limit block 19 and the second limit block 20 are respectively in contact with an outer wall surface of the mounting bracket 1.

[0035] like Figure 1 and Figure 4 As shown, there is a certain distance between the first limit block 19 and the second limit block 20, and the distance forms a space for the lower end of the mounting bracket 1 to be inserted. The first limit block 19 has a first limit surface for contacting the outer wall surface of the mounting bracket 1, and the second limit block 20 has a second limit surface for contacting the other outer wall surface of the mounting bracket 1. The first limit surface and the second limit surface are arranged in a V shape, and the first limit surface and the second limit surface are inclined relative to the fourth positioning pin. When placing the mounting bracket 1, only when the two opposite outer wall surfaces of the mounting bracket 1 are in contact with the first limit block 19 and the second limit block 20 respectively, it can be said that the position of the mounting bracket 1 is correctly placed, avoiding misalignment and ensuring product quality. The first limit surface and the second limit surface are both planes. The first limit surface is the surface of the first limit block 19 facing the second limit block 20, and the second limit surface is the surface of the second limit block 20 facing the first limit block 19. The first limit surface and the second limit surface are parallel to the rotation center line of the second clamping arm 11202.

[0036] As a preferred example, Figure 4As shown, the first limit block 19 is connected to the positioning seat 18 by a screw, and a gasket is provided between the first limit block 19 and the positioning seat 18, the number of gaskets can be adjusted, and the axis of the screw is perpendicular to the axis of the fourth positioning pin. The second limit block 20 is also connected to the positioning seat 18 by a screw, and a gasket is provided between the second limit block 20 and the positioning seat 18, the number of gaskets can be adjusted, and the axis of the screw is perpendicular to the axis of the fourth positioning pin. The end of the positioning seat 18 has an internal threaded hole for the screw to be inserted, and the gasket has a through hole for the screw to pass through. By adjusting the number of gaskets, the distance between the first limit block 19 and the second limit block 20 and the installation position of the first positioning block and the second positioning block on the positioning seat 18 can be adjusted, so as to be suitable for the clamping and positioning of the mounting bracket 1 of different widths and installation positions, thereby improving adaptability, and the adjustment is convenient and efficient.

[0037] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model; or the above concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. Automobile water tank connecting plate assembly welding fixture, characterized by: It includes a first clamping device for clamping the connecting plate body at the first end of the connecting plate body, a second clamping device for clamping the connecting plate body and a nut at the second end of the connecting plate body, and a positioning device for positioning the mounting bracket below the connecting plate body, wherein the positioning device is located between the first clamping device and the second clamping device.

2. The automobile water tank connecting plate assembly welding fixture according to claim 1 is characterized in that: The first clamping device includes a first clamping bracket, a first clamping arm rotatably arranged on the first clamping bracket, a first upper clamping block arranged on the first clamping arm, and a first lower clamping block arranged on the first clamping bracket and matched with the first upper clamping block.

3. The welding fixture for the automobile water tank connecting plate assembly according to claim 2 is characterized in that: A plurality of the first upper clamping blocks and the first lower clamping blocks are provided, and the number of the first upper clamping blocks and the number of the first lower clamping blocks are the same.

4. The automobile water tank connecting plate assembly welding fixture according to claim 2 is characterized in that: A first support is arranged on the first clamping bracket, and a first positioning pin for positioning the connecting plate body is arranged on the first support.

5. The automobile radiator connecting plate assembly welding fixture according to any one of claims 1 to 3, characterized in that: The second clamping device includes a second clamping bracket, a second clamping arm rotatably arranged on the second clamping bracket, a second upper clamping block and a third upper clamping block arranged on the second clamping arm, a second lower clamping block matched with the second upper clamping block, and a third lower clamping block matched with the third upper clamping block, and the second lower clamping block is arranged on the second clamping bracket.

6. The automobile water tank connecting plate assembly welding fixture according to claim 5 is characterized in that: A plurality of the second upper clamping blocks and the second lower clamping blocks are provided, and the number of the second upper clamping blocks and the number of the second lower clamping blocks are the same.

7. The automobile water tank connecting plate assembly welding fixture according to claim 5 is characterized in that: The third upper clamping block and the third lower clamping block are provided in one piece.

8. The automobile water tank connecting plate assembly welding fixture according to claim 5, characterized in that: The second clamping bracket is provided with a second support and a third support, the second support is provided with a second positioning pin for positioning the connecting plate body, the third support is provided with a third positioning pin for positioning the nut, and the third positioning pin passes through the third lower clamping block.

9. The automobile radiator connecting plate assembly welding fixture according to any one of claims 1 to 3, characterized in that: The positioning device comprises a positioning seat and a first limiting block and a second limiting block arranged on the positioning seat. The first limiting block and the second limiting block are arranged relatively to each other, and there is a space between the first limiting block and the second limiting block for inserting the mounting bracket.

10. The automobile water tank connecting plate assembly welding fixture according to claim 9, characterized in that: The positioning device also includes a positioning bracket and a positioning cylinder arranged on the positioning bracket. The positioning cylinder is connected to the positioning seat and is arranged vertically.

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