Terminal welding positioning mechanism

Abstract

The utility model belongs to the technical field of IGBT (Insulated Gate Bipolar Translator) module welding, and particularly relates to a terminal welding positioning mechanism, which comprises a base, pedestals, a plurality of positioning assemblies and a pressing assembly, the base is provided with a plurality of pedestals and a plurality of positioning assemblies, each pedestal is used for placing a terminal, each positioning assembly comprises a plurality of positioning blocks, and each positioning block is provided with a plurality of pressing assemblies. The positioning module is used for positioning the terminal; the pressing assembly comprises a pressing plate and a plurality of pressing rods, the pressing rods and the positioning blocks are arranged correspondingly, and the pressing assembly is matched with the positioning assembly, so that the pressing plate presses the terminal on the base; according to the utility model, a plurality of terminals can be pressed and positioned at the same time, the positioning consistency and the positioning stability of the terminals can be ensured, the pressing force on the terminals can be ensured, the phenomenon of insufficient welding or infirm welding during welding can be avoided, and the welding precision and the product performance can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of IGBT module welding technology, specifically relating to a terminal welding positioning mechanism. Background Technology

[0002] Ultrasonic welding utilizes high-frequency vibration waves transmitted to the surfaces of two objects to be welded. Under pressure, the surfaces of the two objects rub against each other, forming a fusion between molecular layers.

[0003] IGBTs (Insulated Gate Bipolar Transistors) are core components of power electronic systems, possessing independent power conversion functions. With the continuous upgrading of strategic industries such as new energy, rail transportation, and smart grids, there are increasing demands for miniaturization, modularization, and high power density in IGBT modules. IGBT modules utilize ultrasonic welding to connect electrical power terminals to high-power semiconductor chip circuit structures, achieving atomic-level tight contact.

[0004] Before ultrasonic welding of IGBT modules, the IGBT modules need to be clamped and positioned. When existing tooling clamps and positions the IGBT modules, due to the different structural shapes of the IGBT modules, positional deviations are prone to occur when clamping specific IGBT modules. Furthermore, insufficient clamping force on the IGBT modules can lead to incomplete or unreliable welds during welding, reducing welding accuracy and product performance.

[0005] Therefore, it is necessary to improve the existing technology to overcome its shortcomings in practical applications. Utility Model Content

[0006] Based on the aforementioned shortcomings and deficiencies in the prior art, one of the objectives of this utility model is to at least solve one or more of the aforementioned problems in the prior art. In other words, one of the objectives of this utility model is to provide a terminal welding positioning mechanism that meets one or more of the aforementioned requirements.

[0007] To achieve the above-mentioned objectives, this utility model adopts the following technical solution:

[0008] This utility model provides a terminal welding positioning mechanism, including a base, a base plate, a positioning component, and a clamping component. The base plate is provided with several base plates and several positioning components. Each base plate is used to place a terminal. Each positioning component includes several positioning blocks and is used to position the terminal. The clamping component includes a clamping plate and several clamping rods. The clamping rods are arranged corresponding to the positioning blocks. The clamping component cooperates with the positioning component so that the clamping plate clamps the terminal onto the base plate.

[0009] As a preferred embodiment, each of the bases is provided with several positioning blocks on its outer side, each positioning block having a positioning groove, and the clamping rod is inserted into the positioning groove.

[0010] As a preferred embodiment, the end of the clamping rod is provided with a wedge-shaped portion, the positioning groove is provided with a wedge-shaped surface, and the wedge-shaped portion and the wedge-shaped surface are wedge-shapedly engaged.

[0011] As a preferred embodiment, the clamping plate is configured with several clamping positions, which abut against the upper surface of the terminal.

[0012] As a preferred embodiment, the clamping position is coated with polyurethane.

[0013] As a preferred embodiment, the clamping plate is provided with a hollowed-out groove.

[0014] As a preferred embodiment, each of the bases is provided with several adsorption holes evenly distributed on it.

[0015] As a preferred embodiment, a limiting block is provided on the outer side of the positioning block, and the limiting block is used to limit the position between the positioning block and the base.

[0016] Compared with the prior art, the advantages of this utility model are:

[0017] This utility model provides a terminal welding positioning mechanism that can simultaneously press and position multiple terminals, ensuring the consistency and stability of terminal positioning, while also ensuring the pressing force on the terminals, avoiding the phenomenon of incomplete welding or weak welding during welding, thus improving welding accuracy and product performance.

[0018] This utility model provides a terminal welding positioning mechanism. During the terminal positioning process, the contact position with the terminal is made of non-metallic material to avoid scratches caused to the product by the positioning block during the positioning process. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other embodiments can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of a terminal welding positioning mechanism according to an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the structural connection of the base, pedestal, and positioning component according to an embodiment of the present utility model;

[0022] Figure 3This is a schematic diagram of the pressing component structure according to an embodiment of the present utility model;

[0023] Figure 4 This is a schematic diagram of the positioning block according to an embodiment of the present invention;

[0024] In the figure: 1 base, 2 base, 21 suction hole, 3 positioning component, 31 positioning block, 311 positioning groove, 312 wedge surface, 32 limiting block, 4 pressing component, 41 pressing plate, 411 hollow groove, 42 pressing rod, 421 wedge part, 43 pressing position. Detailed Implementation

[0025] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this application. For those skilled in the art, these drawings can be applied to other similar scenarios without creative effort. Unless obvious from the context or otherwise specified, the same reference numerals in the drawings represent the same structures or operations.

[0026] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0027] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0028] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application. In addition, although the terminology used in this application is selected from commonly known and used terms, some terms mentioned in this application's specification may have been chosen by the applicant according to his or her judgment, and their detailed meanings are explained in the relevant sections of this description. Moreover, this application should be understood not only through the actual terms used, but also through the meaning implied by each term.

[0029] According to some embodiments of this application, such as Figures 1 to 4 As shown, a terminal welding positioning mechanism is provided, including a base 1, a base 2, a positioning component 3, and a clamping component 4. The base 1 is provided with several bases 2 and several positioning components 3. Each base 2 is used to place a terminal. Each positioning component 3 includes several positioning blocks 31 and is used to position the terminal. The clamping component 4 includes a clamping plate 41 and several clamping rods 42. The clamping rods 42 are arranged corresponding to the positioning blocks 31. The clamping component 3 cooperates with the positioning component 4 so that the clamping plate 41 clamps the terminal onto the base 2.

[0030] In some specific embodiments, the base plate 1 is provided with two bases 2, and each base 2 is provided with positioning blocks 31 in the front, back and left and right directions on its outer side. Each positioning block 31 is provided with a positioning groove 311. The clamping rod 42 is inserted into the positioning groove 311 to make the clamping assembly press the terminal onto the base, so as to prevent the terminal from being not securely fixed on the base or slipping off.

[0031] Furthermore, the end of the clamping rod 42 is provided with a wedge-shaped part 421, and the positioning groove 311 is provided with a wedge-shaped surface 312. The wedge-shaped part 421 and the wedge-shaped surface 312 are wedge-shaped and fit together. The wedge-shaped part 421 of each clamping rod 42 will move towards the center synchronously, thereby ensuring the positioning effect of the terminal.

[0032] In some specific embodiments, the clamping plate 41 is provided with several clamping positions 43, which abut against the upper surface of the terminal. The clamping positions 43 clamp the edge of the upper surface of the terminal to avoid direct contact with the soldering position of the terminal and ensure that the soldering position on the terminal is easy to solder.

[0033] Specifically, each clamping position 43 is provided with polyurethane coating. One side of the polyurethane coating is pasted on the clamping position 43 and pressed onto the terminal by the polyurethane coating, so as to avoid direct contact between the clamping position 43 and the terminal and damage to the surface accuracy of the terminal.

[0034] Polyurethane coating is a non-metallic elastic material. Direct contact between the polyurethane coating and the terminal surface prevents scratches from the clamping plate during the clamping process. Because of the elasticity of the polyurethane coating, to ensure sufficient positional clearance when clamping multiple terminals simultaneously, it prevents individual terminals from being under-clamped or over-clamped.

[0035] Furthermore, the clamping plate 41 is provided with a hollow groove 411, which is directly opposite the welding position of the terminal. The hollow groove 411 can avoid the welding position on the terminal so that the welding device can weld the terminal.

[0036] In some specific embodiments, each base 2 is uniformly provided with several adsorption holes 21. The base 2 is connected to an external vacuum generator and the terminals are adsorbed and fixed on the base through the adsorption holes.

[0037] In some specific embodiments, a limiting block 32 is provided on the outer side of the positioning block 31, which is used to limit the position between the positioning block 31 and the base 2. Different limiting blocks 32 are adjusted according to the length or width of the terminal, thereby adjusting the distance between the positioning block 31 and the base 2.

[0038] According to some embodiments of the application, a terminal welding positioning mechanism can simultaneously press and position multiple terminals, ensuring the consistency and stability of terminal positioning, while also ensuring the pressing force on the terminals, avoiding the phenomenon of incomplete welding or weak welding during welding, thereby improving welding accuracy and product performance.

[0039] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0040] The above description is only a detailed explanation of the preferred embodiments and principles of this application. For those skilled in the art, there may be changes in the specific implementation methods based on the ideas provided in this application, and these changes should also be considered within the scope of protection of this application.

Claims

1. A terminal welding positioning mechanism, characterized in that, The device includes a base, a base plate, a positioning component, and a clamping component. The base plate has several base plates and several positioning components. Each base plate is used to place a terminal. Each positioning component includes several positioning blocks and is used to position the terminal. The clamping component includes a clamping plate and several clamping rods. The clamping rods are arranged corresponding to the positioning blocks. The clamping component cooperates with the positioning component so that the clamping plate clamps the terminal onto the base plate.

2. The terminal welding positioning mechanism according to claim 1, characterized in that, Each of the bases has several positioning blocks on its outer side, and each positioning block has a positioning groove. The clamping rod is inserted into the positioning groove.

3. The terminal welding positioning mechanism according to claim 2, characterized in that, The end of the clamping rod is provided with a wedge-shaped part, and the positioning groove is provided with a wedge-shaped surface, and the wedge-shaped part and the wedge-shaped surface are wedge-shapedly engaged.

4. The terminal welding positioning mechanism according to claim 1, characterized in that, The clamping plate is configured with several clamping positions, which abut against the upper surface of the terminal.

5. A terminal welding positioning mechanism according to claim 4, characterized in that, The clamping position is coated with polyurethane.

6. The terminal welding positioning mechanism according to claim 1, characterized in that, The clamping plate is provided with a hollowed-out groove.

7. The terminal welding positioning mechanism according to claim 1, characterized in that, Each of the aforementioned bases is uniformly provided with several adsorption holes.

8. The terminal welding positioning mechanism according to claim 1, characterized in that, A limiting block is provided on the outer side of the positioning block, and the limiting block is used to limit the position between the positioning block and the base.

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