Ultrasonic welding reworking tool

By designing ultrasonic welding rework tooling, the problem of poor PAD cannot be reworked is solved, and the PAD rework treatment is realized, reducing the scrap rate and production costs.

CN223235293UActive Publication Date: 2025-08-19SODECIA FSG DALIAN CO LTD
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Patent Information

Application Number
CN202422295412.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-20
Publication Date
2025-08-19
Estimated Expiration
2034-09-20

AI Technical Summary

Technical Problem

In the case of poor PAD of the gear shift fork, the prior art cannot effectively rework the processing, resulting in an increase in waste rate and an increase in production costs.

Method used

An ultrasonic welding rework tool is designed, including base plate, positioning block, support block, quick clamp and welding machine platform, which is used to position and weld the PAD to ensure that the reworked PAD meets the surface without indentation, burrs, seamless gaps, thickness meets requirements and pulling force of 80N.

Benefits of technology

The rework processing of PAD is realized, which reduces the scrap rate of finished parts, improves production efficiency and reduces production costs.

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Abstract

The utility model relates to the technical field of reworking tools, and discloses an ultrasonic welding reworking tool which comprises a bottom plate, the top of the bottom plate is fixedly connected with a first positioning block, the top of the first positioning block is provided with a limiting pin, and the two sides of the top of the bottom plate are fixedly connected with second positioning blocks. Supporting blocks are fixedly connected to the tops of the bottom plates, rapid clamps are arranged on the tops of the supporting blocks, positioning columns are fixedly connected to the two sides of the tops of the bottom plates, a welding machine platform is arranged at the bottoms of the bottom plates, and a welding head assembly is arranged on the top of a first positioning block. According to the ultrasonic welding reworking tool, after the tool is reworked, the PAD surface is free of indentations, the periphery is free of burrs, the PAD and the surface of a car fork are free of gaps, the thickness of the welded PAD needs to meet 9.25 + 0 / -0.3, and the drawing force of the welded PAD at the room temperature is larger than or equal to 80 N. The ultrasonic welding reworking tool adopts a newly-designed PAD welding reworking tool, and then parts with poor finished PAD products can be reworked; therefore, the rejection rate of finished products is greatly reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of rework tooling, in particular to an ultrasonic welding rework tooling. Background Art

[0002] The shift fork is one of the important components of the DQ381 wet dual-clutch transmission. It directly affects the gear shifting and speed change of the transmission, and the PAD is a very important component on the shift fork.

[0003] PAD is the only component that is in direct contact with the shift fork and the synchronizer ring, so its appearance quality and size requirements are very high. During the process, it is not only inspected in the ultrasonic process, but also inspected again in the final inspection and packaging link. After the ultrasonic process, there are many other processes.

[0004] However, the PAD may be affected during this process, resulting in PAD defects, such as scratches, loosening or falling off. In this case, the finished parts cannot be returned to the ultrasonic welding process for rework and can only be scrapped, which leads to an increase in scrap rate and production costs. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides an ultrasonic welding rework tool, which aims to improve the problem that the existing technology may affect the PAD during the inspection process, resulting in PAD defects, bumps, loosening or falling off, etc. In this case, the PAD can only be scrapped, resulting in an increase in the scrap rate and increased production costs.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ultrasonic welding rework tool, comprising a base plate, a first positioning block fixedly connected to the top of the base plate, a limiting pin provided on the top of the first positioning block, second positioning blocks fixedly connected to both sides of the top of the base plate, support blocks fixedly connected to the top of the base plate, and quick clamps provided on the top of the support blocks.

[0007] Furthermore, positioning columns are fixedly connected to both sides of the top of the bottom plate.

[0008] Furthermore, a welding machine platform is provided at the bottom of the base plate.

[0009] Furthermore, a welding head assembly is provided on the top of the first positioning block.

[0010] The utility model has the following beneficial effects:

[0011] 1. In the present invention, the PAD after rework by the ultrasonic welding rework tool must meet the following requirements: 1. There is no indentation on the PAD surface; 2. There is no burr around the PAD; 3. There is no gap between the PAD and the fork surface; 4. The thickness of the PAD after welding must meet 9.25+0 / -0.3. 5. The pull-out force of the PAD after welding at room temperature is ≥80N.

[0012] 2. In the present invention, the ultrasonic welding rework tool adopts a newly designed PAD welding rework tool, and the finished product PAD defective parts can be reworked in the future, which greatly reduces the scrap rate of the finished parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional diagram of an ultrasonic welding rework tool proposed in the utility model;

[0014] Figure 2 This is a partial structural diagram of an ultrasonic welding rework tool proposed in the utility model;

[0015] Figure 3 This is a partial structural top view of an ultrasonic welding rework tool proposed in the utility model;

[0016] Figure 4 This is a partial structural front view of an ultrasonic welding rework tool proposed in the utility model.

[0017] Legend:

[0018] 1. Base plate; 2. First positioning block; 3. Second positioning block; 4. Positioning column; 5. Support block; 6. Manual clamp; 7. Limit pin; 8. Welding machine platform; 9. Welding head assembly. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Reference Figure 2 、 Figure 3 and Figure 4The utility model provides an embodiment: an ultrasonic welding rework tool, including a base plate 1, a first positioning block 2 is fixedly connected to the top of the base plate 1, a limiting pin 7 is provided on the top of the first positioning block 2, second positioning blocks 3 are fixedly connected to both sides of the top of the base plate 1, the top of the base plate 1 is fixedly connected to support blocks 5, the top of the support blocks 5 is provided with quick clamps 6, and positioning columns 4 are fixedly connected to both sides of the top of the base plate 1.

[0021] The first positioning block 2, the second positioning block 3 and the positioning column 4 are used to position the reworked PAD, the limit pin 7 is used to limit the PAD on the positioning column 4, and the support block 5 is used to install the quick clamp 6. The quick clamp 6 can be used to stabilize electronic components or circuit boards to facilitate rework and repair operations.

[0022] Reference Figure 1 A welding machine platform 8 is provided at the bottom of the base plate 1, and a welding head assembly 9 is provided at the top of the first positioning block 2.

[0023] The welding machine platform 8 is used to connect the welding machine to the base plate 1, and the welding head assembly 9 is used for rework welding operations.

[0024] Working principle: When using this tooling, there are two sets of PADs on the fork. When reworking the left PAD, use the right workstation, and when reworking the right PAD, use the left workstation. During assembly, the welding operator first removes the defective PAD of the finished part to be reworked, pre-assembles the new PAD on the fork, and then places the fork on the first positioning block 2, the second positioning block 3 and the positioning column 4. The end face of the fork is close to the stop blocks on the first positioning block 2 and the second positioning block 3, and the side of the fork to be reworked and welded is close to the limit pin 7, and then the quick clamp 6 is closed and clamped. The same operation is used to load the second reworked workpiece into another workstation and clamp it. Finally, press the start button to start the welding machine to start welding.

[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An ultrasonic welding rework tool, comprising a base plate (1), characterized in that: The top of the base plate (1) is fixedly connected to a first positioning block (2), a limiting pin (7) is provided on the top of the first positioning block (2), second positioning blocks (3) are fixedly connected to both sides of the top of the base plate (1), the top of each base plate (1) is fixedly connected to a supporting block (5), and the top of each supporting block (5) is provided with a quick clamp (6).

2. The ultrasonic welding rework tool according to claim 1, characterized in that: Positioning columns (4) are fixedly connected to both sides of the top of the bottom plate (1).

3. The ultrasonic welding rework tool according to claim 1, characterized in that: A welding machine platform (8) is provided at the bottom of the base plate (1).

4. The ultrasonic welding rework tool according to claim 1, characterized in that: A welding head assembly (9) is provided on the top of the first positioning block (2).