A clamping positioning mechanism

Abstract

The utility model belongs to terminal welding technical field, concretely relates to a clamping positioning mechanism, including bottom plate, pedestal, drive mechanism, clamping mechanism and positioning mechanism, the upper end installation pedestal and positioning mechanism of bottom plate, the positioning mechanism is located the outside of pedestal, is positioned for to the pedestal, places product above the pedestal, the lower end installation drive mechanism of bottom plate, drive mechanism with Clamping mechanism transmission connection, clamping mechanism with Pedestal cooperation is used for to the clamping location of product, the utility model can realize the accurate, synchronous clamping and positioning of IGBT module and other multi -type products, ensure the even distribution of clamping force, effectively avoided the problem of not accurate and unsynchronized clamping.

Description

Technical Field

[0001] This utility model belongs to the field of terminal welding technology, and specifically relates to a clamping and 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] IGBT modules 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 ultrasonically welding IGBT modules, the IGBT modules need to be clamped and positioned. The inventors found that existing clamping and positioning fixtures have at least the following technical problems:

[0005] On the one hand, when installing and positioning IGBT modules, it is impossible to simultaneously clamp the sides of the IGBT modules, which can easily lead to inaccurate positioning. On the other hand, existing clamping and positioning fixtures lack sufficient flexibility and adaptability when dealing with IGBT modules of different sizes, often requiring the replacement of different fixtures or complex adjustments, which not only increases the difficulty of operation but also reduces production efficiency.

[0006] Therefore, it is necessary to improve upon the shortcomings of existing technologies in order to overcome their deficiencies in practical applications. Utility Model Content

[0007] 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 clamping and positioning mechanism that meets one or more of the aforementioned requirements.

[0008] To achieve the above-mentioned objectives, this utility model adopts the following technical solution:

[0009] This utility model provides a clamping and positioning mechanism, including a base plate, a base, a drive mechanism, a clamping mechanism, and a positioning mechanism. The base and the positioning mechanism are installed on the upper end of the base plate. The positioning mechanism is located on the outside of the base and is used to position the base. A product is placed on the base. The drive mechanism is installed on the lower end of the base plate. The drive mechanism is connected to the clamping mechanism. The clamping mechanism cooperates with the base to clamp and limit the product.

[0010] As a preferred embodiment, the driving mechanism includes a cylinder, a transmission rod, a swing rod, and a rotating shaft. The cylinder is fixedly connected to the base plate, the cylinder is connected to the transmission rod, the transmission rod is connected to the swing rod, the swing rod is connected to the rotating shaft, and the rotating shaft is arranged through the base plate.

[0011] As a preferred embodiment, the clamping mechanism includes several clamping components, which are disposed on the base plate. The rotating shaft drives and connects the several clamping components so that the several clamping components move synchronously toward or away from the center of the rotating shaft.

[0012] As a preferred embodiment, each of the clamping components includes a swing shaft, a connecting arm, and a clamping block. The rotating shaft is rotatably connected to the swing shaft, the swing shaft is connected to the connecting arm, the connecting arm is connected to the clamping block, and the clamping block abuts against the side wall of the product.

[0013] As a preferred embodiment, the swing shaft and the clamping block are respectively arranged perpendicular to the connecting arm, and the swing shaft is arranged parallel to the central axis of the clamping block.

[0014] As a preferred embodiment, several waist holes are evenly arranged on the rotating shaft, and each waist hole is connected to the swing shaft.

[0015] As a preferred embodiment, the lower surface of the base is provided with several guide grooves, and each connecting arm slides along the corresponding guide groove.

[0016] As a preferred embodiment, the outer side of the rotating shaft is fitted with a sleeve, and the sleeve is connected to the base plate.

[0017] As a preferred embodiment, the positioning mechanism includes multiple positioning blocks, which abut against the base.

[0018] Compared with the prior art, the advantages of this utility model are:

[0019] This invention provides a clamping and positioning mechanism that can accurately and synchronously clamp and position various types of products such as IGBT modules, ensuring a uniform distribution of clamping force and effectively solving the problems of inaccurate and asynchronous clamping in the prior art.

[0020] This utility model provides a clamping and positioning mechanism that can adjust the clamping position and force according to the product size, greatly improving the adaptability and flexibility to products of different sizes, reducing the need for tooling changes or complex adjustments, thereby improving production efficiency and providing a reliable guarantee for high-precision processing such as ultrasonic welding. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, 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 application. For those skilled in the art, other embodiments can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a clamping and positioning mechanism according to an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram showing the connection between the driving mechanism and the clamping mechanism in an embodiment of this utility model;

[0024] Figure 3 This is a schematic diagram of the clamping assembly according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the rotating shaft according to an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the base according to an embodiment of the present utility model;

[0027] Figure 6 This is another perspective view of the base of this utility model embodiment;

[0028] In the diagram: 1. Base plate, 2. Base, 21. Guide groove, 3. Drive mechanism, 31. Cylinder, 32. Transmission rod, 33. Swing rod, 34. Rotating shaft, 341. Waist hole, 35. Sleeve, 4. Clamping mechanism, 41. Swing shaft, 42. Connecting arm, 43. Clamping block, 5. Positioning mechanism, 51. Positioning block, 6. Product. Detailed Implementation

[0029] To more clearly illustrate the embodiments of this application, the specific implementation methods of this application will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0030] In the description of the embodiments of this application, the terms "upper," "lower," "front," "rear," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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, they should not be construed as limitations on this application. In addition, the terms "first," "second," etc., are only used for distinction in description and have no special meaning.

[0031] According to some embodiments of this application, please refer to Figures 1 to 6 As shown, a clamping and positioning mechanism is provided, including a base plate 1, a base 2, a drive mechanism 3, a clamping mechanism 4, and a positioning mechanism 5. The base 2 and the positioning mechanism 5 are installed on the upper end of the base plate 1. The positioning mechanism 5 is located on the outside of the base 3 and is used to position the base 2. A product 6 is placed on the base 2. The drive mechanism 3 is installed on the lower end of the base plate 1. The drive mechanism 3 is connected to the clamping mechanism 4. The clamping mechanism 4 cooperates with the base 2 and is used to clamp and limit the product 6.

[0032] In some embodiments of this application, the drive mechanism 3 includes a cylinder 31, a transmission rod 32, a rocker arm 33, and a rotating shaft 34. The cylinder 31 is fixedly connected to the base plate 1. The cylinder 31 is connected to the transmission rod 32. The transmission rod 32 is connected to the rocker arm 33. The rocker arm 33 is connected to the rotating shaft 34. The rotating shaft 34 is arranged through the base plate 1.

[0033] Specifically, when cylinder 31 is activated, its extension and retraction movement drives transmission rod 32 to move linearly. Transmission rod 32 then transmits this movement to swing rod 33, causing swing rod 33 to oscillate around its connection point with rotating shaft 34. The oscillation of swing rod 33 then drives rotating shaft 34 to rotate. Since rotating shaft 34 is installed through base plate 1 and is connected to clamping mechanism 4, the rotation of rotating shaft 34 will drive clamping mechanism 4 to perform corresponding actions.

[0034] In some embodiments of this application, the clamping mechanism 4 includes several clamping components mounted on the base plate 1. A rotating shaft 34 drives these clamping components to move synchronously towards or away from the center of the rotating shaft 34. Specifically, four clamping components are configured. When the rotating shaft 34 rotates, it drives the clamping components to move synchronously towards or away from the center of the rotating shaft 34, thereby clamping or releasing the product 6. This design ensures a uniform distribution of clamping force, effectively avoiding inaccurate positioning caused by uneven clamping.

[0035] Furthermore, each clamping assembly includes a swing shaft 41, a connecting arm 42, and a clamping block 43. The rotating shaft 34 is rotatably connected to the swing shaft 41, so that the swing shaft 41 can swing accordingly with the rotation of the rotating shaft 34. The swing shaft 41 is connected to the connecting arm 42, and the connecting arm 42 is connected to the clamping block 43, thereby converting the swing of the swing shaft 41 into the linear motion of the clamping block 43. The clamping block 43 abuts against the side wall of the product 6. When the clamping block 43 moves closer to the product 6, it achieves clamping and limiting of the product 6.

[0036] To ensure the stability and reliability of the clamping assembly, the swing shaft 41 and the clamping block 43 are respectively arranged perpendicular to the connecting arm 42, and the central axis of the swing shaft 41 and the clamping block 43 are arranged parallel to each other. This enables the clamping assembly to maintain good rigidity and stability when subjected to force, and it is not easy to deform or be damaged.

[0037] Furthermore, several waist holes 341 are evenly arranged on the rotating shaft 34, and each waist hole 341 is connected to the swing shaft 41. The design of the waist holes 341 provides a certain amount of room for the swing shaft 41, so that the clamping assembly can be appropriately adjusted when dealing with products 6 of different sizes, thereby improving the adaptability and flexibility of the clamping and positioning mechanism.

[0038] In some embodiments of this application, the lower surface of the base 2 is provided with several guide grooves 21, and each connecting arm 42 slides along the corresponding guide groove 21. The guide groove 21 provides precise guidance for the movement of the connecting arm 42, ensuring that the clamping assembly can maintain a stable movement trajectory when clamping or releasing the product 6, and further improving the accuracy and stability of positioning.

[0039] In some embodiments of this application, the outer side of the rotating shaft 34 is rotatably fitted with a sleeve 35, which is connected to the base plate 1. The sleeve 35 provides stable support and rotation space for the rotating shaft 34, ensuring the stability and reliability of the rotating shaft 34 during rotation.

[0040] In some embodiments of this application, the positioning mechanism 5 includes multiple positioning blocks 51, which abut against the base 2. Through the abutment and engagement of the multiple positioning blocks 51 with the base 2, the positioning mechanism 5 can achieve precise positioning of the base 2, thereby ensuring the positional accuracy of the product 6 during placement and processing. This design provides a reliable guarantee for high-precision processing such as ultrasonic welding, effectively improving product processing quality and production efficiency.

[0041] In actual use, product 6 is first placed on base 2 to ensure that product 6 is in the correct position. Then, cylinder 31 in drive mechanism 3 is started. Cylinder 31 starts to work and generates thrust. The thrust is transmitted to swing arm 33 through transmission rod 32. Swing arm 33 swings around rotating shaft 34 under the action of thrust. Since rotating shaft 34 is arranged through base plate 1 and has four waist holes 341 evenly arranged on it, each waist hole 341 is connected to swing shaft 41 in clamping mechanism 4. Therefore, the swing of swing arm 33 will drive rotating shaft 34 to rotate. The rotation of rotating shaft 34 further drives the rotation of each swing shaft 41. Swing shaft 41 is connected to connecting arm 42. Connecting arm 42 is connected to clamping block 43. Therefore, the rotation of swing shaft 41 is transmitted to clamping block 43 through connecting arm 42, causing clamping block 43 to move closer to the center of rotating shaft 34. During this process, the four guide grooves 21 configured on the lower surface of the base 2 play a guiding role, and each connecting arm 42 slides along the corresponding guide groove 21, ensuring the accuracy and stability of the synchronous movement of the four clamping blocks 43.

[0042] When clamping block 43 abuts against the side wall of product 6, it achieves clamping and limiting of product 6. Simultaneously, multiple positioning blocks 51 in positioning mechanism 5 abut against base 2, further enhancing positioning accuracy and stability. Because the clamping components in clamping mechanism 4 are flexibly designed, the clamping position and force can be adjusted according to product size, thus the clamping and positioning mechanism has extremely high adaptability and flexibility for products of different sizes. When dealing with IGBT modules of different sizes, there is no need to change different tooling or make complex adjustments; simply adjusting the position and force of the clamping components is sufficient, thereby greatly improving production efficiency.

[0043] 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.

[0044] 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 based on the ideas provided by this utility model, and these changes should also be considered within the scope of protection of this application.

Claims

1. A clamping and positioning mechanism, characterized in that, The device includes a base plate, a base, a drive mechanism, a clamping mechanism, and a positioning mechanism. The base and the positioning mechanism are mounted on the upper end of the base plate. The positioning mechanism is located on the outside of the base and is used to position the base. A product is placed on the base. The drive mechanism is mounted on the lower end of the base plate. The drive mechanism is connected to the clamping mechanism. The clamping mechanism cooperates with the base and is used to clamp and limit the product.

2. The clamping and positioning mechanism according to claim 1, characterized in that, The driving mechanism includes a cylinder, a transmission rod, a swing rod, and a rotating shaft. The cylinder is fixedly connected to the base plate, the cylinder is connected to the transmission rod, the transmission rod is connected to the swing rod, the swing rod is connected to the rotating shaft, and the rotating shaft passes through the base plate.

3. The clamping and positioning mechanism according to claim 2, characterized in that, The clamping mechanism includes several clamping components, which are disposed on the base plate. The rotating shaft drives and connects the several clamping components so that the several clamping components move synchronously toward or away from the center of the rotating shaft.

4. The clamping and positioning mechanism according to claim 3, characterized in that, Each of the clamping assemblies includes a swing shaft, a connecting arm, and a clamping block. The rotating shaft is rotatably connected to the swing shaft, the swing shaft is connected to the connecting arm, the connecting arm is connected to the clamping block, and the clamping block abuts against the side wall of the product.

5. A clamping and positioning mechanism according to claim 4, characterized in that, The swing shaft and the clamping block are respectively arranged perpendicular to the connecting arm, and the swing shaft is arranged parallel to the central axis of the clamping block.

6. A clamping and positioning mechanism according to claim 4, characterized in that, Several waist holes are evenly arranged on the rotating shaft, and each waist hole is connected to the swing shaft.

7. A clamping and positioning mechanism according to claim 4, characterized in that, The lower surface of the base is provided with several guide grooves, and each of the connecting arms slides along the corresponding guide groove.

8. A clamping and positioning mechanism according to claim 2, characterized in that, The outer side of the rotating shaft is fitted with a sleeve, which is connected to the base plate.

9. A clamping and positioning mechanism according to claim 1, characterized in that, The positioning mechanism includes multiple positioning blocks, which abut against the base.

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