Condenser MIG welding clamping tool

The condenser MIG welding clamping fixture, designed with cam grooves and double pin shafts in linkage, solves the problem of pipe interference in the process of automotive lightweighting using traditional fixtures, achieves precise flipping and clamping, improves welding efficiency and simplifies the operation process.

CN223863018UActive Publication Date: 2026-02-03SOUTH AIR INT
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Patent Information

Application Number
CN202520387433.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-02-03
Estimated Expiration
2035-03-06

AI Technical Summary

Technical Problem

In the process of automotive lightweighting, the traditional condenser welding fixture suffers from problems such as reduced distance between the bracket and the front-end pipeline, which makes the straight pressing path prone to interference with the pipeline, causing pipeline deformation. Furthermore, the improved solution has problems such as complex structure, time-consuming adjustment, and increased cost.

Method used

The design employs a cam groove and double pin linkage to achieve precise flipping motion of the pressure block from the vertical clearance position to the horizontal pressing position. Through the linkage between the slider and the operating rod, pipeline interference is avoided, the structure is simplified, and the operating efficiency is improved.

Benefits of technology

It effectively avoids pipeline interference, simplifies the operation process, improves welding efficiency, and reduces structural complexity and adjustment time.

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Abstract

The utility model relates to a condenser MIG welding clamping tool which comprises a base, a sliding block, a pressing block and a connecting block. The base is fixedly arranged on one side of the condenser; the sliding block is arranged on the base in a sliding mode, one end of the sliding block is connected with the operating rod, and the other end of the sliding block is hinged to the pressing block through a first pin shaft. One end of the pressing block is fixedly connected with one end of the connecting block, and the other end is used for pressing the condenser bracket; a second pin shaft is arranged at the other end of the connecting block; a cam groove is formed in the side face of the base, and the second pin shaft is arranged in the cam groove in a sliding mode. The cam groove comprises two parallel horizontal sections and an inclined section for connecting the two horizontal sections; and the height difference of the two horizontal sections is equal to the center distance between the first pin shaft and the second pin shaft. Through the linkage design of the cam groove and the double pin shafts, accurate overturning movement of the pressing block from a vertical avoiding position to a horizontal pressing position is achieved, interference of a front-end pipeline is effectively avoided, the structure is simple, operation is easy, and welding efficiency is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of automotive parts manufacturing technology and relates to a condenser MIG welding clamping fixture. Background Technology

[0002] In the field of automotive condenser welding, traditional tooling commonly employs a quick-clamp-slider linear clamping structure. This structure directly clamps the workpiece by pushing the slider with a quick clamp, offering the advantage of convenient operation under interference-free conditions. However, with the development of lightweighting in automobiles, condenser structures are becoming increasingly compact, and the distance between the bracket and the front-end pipe has been reduced to 5-8mm. Traditional tooling has revealed significant defects: the linear clamping path is prone to spatial interference with the pipe, causing the clamping block to fail to reach the predetermined position; forced clamping can easily cause pipe deformation, with actual measurements showing that applying a 20N lateral force can cause a 12% ellipticity deviation in a Φ6mm copper pipe; some improved solutions, such as split-type adjustable clamps, can achieve avoidance, but they suffer from problems such as complex structure, time-consuming adjustment (5-8 minutes per adjustment), and a 40% increase in cost. Utility Model Content

[0003] In view of this, the purpose of this utility model is to solve the above problems and provide a condenser MIG welding clamping fixture.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A condenser MIG welding clamping fixture includes a base, a slider, a pressure block, and a connecting block. The base is fixedly mounted on one side of the condenser. The slider is slidably mounted on the base, with one end connected to an operating rod and the other end hinged to the pressure block via a first pin. One end of the pressure block is fixedly connected to one end of the connecting block, and the other end is used to press the condenser support. The other end of the connecting block is provided with a second pin. A cam groove is provided on the side of the base, and the second pin is slidably mounted in the cam groove. The cam groove includes two parallel horizontal sections and an inclined section connecting the two horizontal sections. The height difference between the two horizontal sections is equal to the center distance between the first and second pins. When the operating rod pushes the slider to slide, the second pin slides along the cam groove, causing the pressure block to flip from a vertical position to a horizontal position, thereby pressing the support.

[0006] Furthermore, the base is provided with a sliding groove, and the slider is slidably disposed in the sliding groove.

[0007] Furthermore, the end of the slider that connects to the operating rod is provided with a T-slot for quick connection.

[0008] Furthermore, the pressure block has an arc-shaped groove in the middle to avoid the pipe at the front end of the support.

[0009] The beneficial effects of this utility model are as follows:

[0010] This invention achieves precise flipping motion of the pressure block from the vertical clearance position to the horizontal pressing position through the linkage design of the cam groove and double pin shaft, effectively avoiding interference from the front pipeline. It also has a simple structure, is easy to operate, and improves welding efficiency.

[0011] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0012] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0013] Figure 1 This is an overall structural diagram of the MIG welding clamping fixture for the condenser in this utility model.

[0014] Figure 2 This is a schematic diagram of the clamping state of the MIG welding clamping fixture for the condenser in this utility model.

[0015] Figure 3 This is an exploded view of the MIG welding clamping fixture for the condenser in this utility model.

[0016] Figure 4 This is a schematic diagram illustrating the usage process of the MIG welding clamping fixture for the condenser in this utility model.

[0017] Reference numerals: 1-base; 2-slider; 3-pressure block; 4-connecting block; 5-bracket; 6-operating lever. Detailed Implementation

[0018] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this utility model. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0019] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0020] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0021] Please see Figures 1-4 This is a condenser MIG welding clamping fixture, comprising a base 1, a slider 2, a pressure block 3, and a connecting block 4. The base 1 is fixedly installed on one side of the condenser. The slider 2 is slidably installed on the base 1, with one end connected to an operating rod 6 and the other end hinged to the pressure block via a first pin. One end of the pressure block is fixedly connected to one end of the connecting block, and the other end is used to press the condenser bracket 5. A second pin is provided at the other end of the connecting block 4. A cam groove is provided on the side of the base, and the second pin is slidably located in the cam groove. The cam groove includes two parallel horizontal sections and an inclined section connecting the two horizontal sections. The height difference between the two horizontal sections is equal to the center distance between the first pin and the second pin. When the operating rod pushes the slider to slide, the second pin slides along the cam groove, causing the pressure block 3 to flip from a vertical position to a horizontal position, thereby pressing the bracket 5.

[0022] The base has a sliding groove in which the slider slides. A T-slot is provided at the end of the slider that connects to the operating rod for quick connection. An arc-shaped groove is provided in the middle of the pressure block to avoid obstructing the pipes at the front end of the support.

[0023] Initially, the pressure block is in a vertical position. When the operating lever 6 is moved, the slider 2 moves the pressure block 3 and the connecting block 4 to the inclined section of the cam groove. The connecting block 4 flips along the cam groove track. The angle of the cam groove determines the speed of the pressure block flipping. When it continues to move forward to the horizontal track, the pressure block moves horizontally until it presses against the bracket 5.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A clamping fixture for MIG welding of a condenser, characterized in that: The device includes a base, a slider, a pressure block, and a connecting block. The base is fixedly mounted on one side of the condenser. The slider is slidably mounted on the base, with one end connected to an operating rod and the other end hinged to the pressure block via a first pin. One end of the pressure block is fixedly connected to one end of the connecting block, and the other end is used to press against the condenser bracket. The other end of the connecting block is provided with a second pin. A cam groove is provided on the side of the base, and the second pin is slidably mounted in the cam groove. The cam groove includes two parallel horizontal sections and an inclined section connecting the two horizontal sections. The height difference between the two horizontal sections is equal to the center distance between the first and second pins. When the operating rod pushes the slider to slide, the second pin slides along the cam groove, causing the pressure block to flip from a vertical position to a horizontal position, thereby pressing against the bracket.

2. The condenser MIG welding clamping fixture according to claim 1, characterized in that: The base is provided with a sliding groove, and the slider is slidably disposed in the sliding groove.

3. The condenser MIG welding clamping fixture according to claim 1, characterized in that: The end of the slider that connects to the operating lever is provided with a T-slot for quick connection.

4. The condenser MIG welding clamping fixture according to claim 1, characterized in that: The pressure block has an arc-shaped groove in the middle to avoid the pipes at the front end of the support.