An ultrasonic welding tool

Abstract

An ultrasonic welding tool is provided in the embodiments of the present application, comprising: a tool base; a bearing table located on the tool base and used for bearing a to-be-welded piece; the bearing table is provided with a sliding part corresponding to a welding area contour of the to-be-welded piece; at least two groups of sliding positioning pieces are used for positioning a positioning groove of the to-be-welded piece, any one group of the sliding positioning pieces is matched with the sliding part and can slide and be fixed along the sliding part; a tool pressing plate is located above the bearing table and used for pressing and welding a welding area of the to-be-welded piece. The ultrasonic welding tool provided in the present application comprises a tool base, a bearing table and a tool pressing plate; the bearing table is provided with a sliding part corresponding to a welding contour of a to-be-welded piece and a sliding positioning piece matched with the sliding part, the sliding positioning piece can slide on the sliding part to adjust the position according to different shapes and sizes of the to-be-welded piece, thereby enhancing the versatility and compatibility of the tool and reducing the operation cost.

Description

Technical Field

[0001] This application relates to the field of welding application technology, and more specifically, to an ultrasonic welding fixture. Background Technology

[0002] Currently, ultrasonic welding fixtures consist of: a fixture pressure plate, a welding zone, and a fixture base. During welding, the control panel and transparent lens are placed sequentially into the welding zone of the fixture. The ultrasonic energy is transmitted to the welding zone through the fixture pressure plate. Due to the high acoustic impedance at the welding zone, i.e., the interface between the two welded parts, localized high temperatures are generated. Furthermore, because plastics have poor thermal conductivity, the heat cannot dissipate quickly and accumulates in the welding zone, causing the contact surfaces of the two plastics to rapidly flame. With the application of pressure, they fuse together. After the ultrasonic waves cease, the pressure is maintained for a few seconds to allow solidification, forming a strong molecular chain, thus achieving the welding purpose. The weld strength can approach the strength of the original material.

[0003] This technology boasts advantages such as high speed and strong welding, and more importantly, it can automate the processing of plastic products. Its benefits include significantly increased productivity, reduced costs, and improved product quality.

[0004] Since the structure and size of the transparent mirror of each control panel are different, each model corresponds to a set of welding fixtures, which increases the cost and causes incompatibility. Therefore, a new adjustable fixture that is compatible with welding similar transparent mirror sizes is needed. Summary of the Invention

[0005] This application provides an ultrasonic welding fixture to solve the problems of existing ultrasonic welding fixtures that can only be used with one model, have poor compatibility, and have high operating costs.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] An ultrasonic welding fixture, comprising:

[0008] Tooling base;

[0009] A support platform, located on the tooling base, is used to support the workpiece to be welded; the support platform is provided with a sliding part corresponding to the contour of the welding area of ​​the workpiece to be welded;

[0010] At least two sets of sliding positioning elements are used to position the workpiece in the positioning groove. Each set of the sliding positioning elements cooperates with the sliding part and can slide and be fixed along the sliding part.

[0011] The tooling pressure plate, located above the support platform, is used to press and weld the welding area of ​​the workpiece to be welded.

[0012] In one alternative embodiment, the sliding part is a groove.

[0013] In one alternative embodiment, any of the sliding positioning elements is fixed to the groove by a threaded fastener.

[0014] In one optional embodiment, the groove extends through the support platform along the thickness direction; any set of the sliding positioning elements includes:

[0015] The positioning post has two vertical ends protruding from the slide groove. Above the slide groove, the positioning post has a welding part positioning section and a stop section arranged from top to bottom. The welding part positioning section is used to fit into the positioning groove of the workpiece to be welded. The stop section is used to contact the top wall of the slide groove to limit the vertical movement of the positioning post.

[0016] An adjusting nut is fitted and threaded onto the lower part of the positioning post to fix the positioning post and the slide groove.

[0017] In one alternative embodiment, the stop part is a stop nut, which is fitted and threaded onto the positioning post.

[0018] In one alternative embodiment, the cross-section of the weldment positioning portion is rectangular or triangular.

[0019] In one optional embodiment, the slides are in two sets, one set including two slides disposed opposite each other in the width direction of the support platform, and the slides extending in the length direction of the support platform;

[0020] Another set includes two slides arranged opposite each other in the length direction of the support platform, and the slides extend in the width direction of the support platform;

[0021] The two sets of grooves form a rectangular structure around each other and are not connected at the ends.

[0022] In one alternative embodiment, each of the grooves is provided with at least one set of the sliding positioning elements.

[0023] In one optional embodiment, the sliding part is a lead screw, and the sliding positioning component includes a sliding nut and a positioning component. The sliding nut is fitted onto the lead screw, and the positioning component is fixed to the sliding nut and used to position the workpiece to be welded.

[0024] In one alternative embodiment, the sliding part is a triangular sliding part or an elliptical sliding part.

[0025] An ultrasonic welding fixture provided in this application includes: a fixture base; a support platform located on the fixture base for supporting the workpiece to be welded; the support platform having a sliding part corresponding to the weld area contour of the workpiece to be welded; at least two sets of sliding positioning members for positioning with the positioning groove of the workpiece to be welded, wherein each set of sliding positioning members cooperates with the sliding part and can slide and be fixed along the sliding part; and a fixture pressure plate located above the support platform for pressing and welding the weld area of ​​the workpiece to be welded.

[0026] The ultrasonic welding fixture provided in this embodiment has the following technical advantages compared to the prior art:

[0027] The ultrasonic welding fixture provided in this application includes a fixture base, a support platform, and a fixture pressure plate. The support platform is provided with a sliding part corresponding to the welding contour of the workpiece to be welded, and a sliding positioning part that cooperates with the sliding part. The sliding positioning part can slide on the sliding part to adjust its position according to the different shapes and sizes of the workpieces to be welded, thereby enhancing the versatility and compatibility of the fixture and reducing operating costs. Attached Figure Description

[0028] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0029] Figure 1 This is an exploded structural diagram of an ultrasonic welding fixture provided in an embodiment of this application;

[0030] Figure 2 An assembly diagram of an ultrasonic welding fixture provided in an embodiment of this application;

[0031] Figure 3 A cross-sectional structural schematic diagram of the ultrasonic welding fixture provided in an embodiment of this application;

[0032] Figure 4 A cross-sectional view of the ultrasonic welding fixture and the workpiece to be welded provided in the embodiments of this application;

[0033] Figure 5 This is a schematic diagram of the positioning groove of the workpiece to be welded provided in an embodiment of this application.

[0034] The following labels are shown in the attached diagram:

[0035] 1. Tooling base; 2. Support platform; 3. Sliding part; 4. Sliding positioning part; 5. Tooling pressure plate;

[0036] Slide 31;

[0037] Positioning pin 41, welding part positioning part 411, stop part 412, adjusting nut 42;

[0038] 21. Control panel 22. Transparent mirror 23. Soldering area 24. Positioning groove 25. Detailed Implementation

[0039] This invention discloses an ultrasonic welding fixture to solve the problems of existing ultrasonic welding fixtures that can only be used with one model, have poor compatibility, and have high operating costs.

[0040] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0041] Please see Figure 1-5 , Figure 1 This is an exploded structural diagram of an ultrasonic welding fixture provided in an embodiment of this application; Figure 2 An assembly diagram of an ultrasonic welding fixture provided in an embodiment of this application; Figure 3 A cross-sectional structural schematic diagram of the ultrasonic welding fixture provided in an embodiment of this application; Figure 4 A cross-sectional view of the ultrasonic welding fixture and the workpiece to be welded provided in the embodiments of this application; Figure 5 This is a schematic diagram of the positioning groove of the workpiece to be welded provided in an embodiment of this application.

[0042] Example 1

[0043] like Figure 1As shown, in one specific embodiment, the ultrasonic welding fixture provided in this application includes a fixture base 1, a support platform 2, a sliding positioning component 4, and a fixture pressure plate 5. The fixture base 1 provides basic support for the welding fixture. The support platform 2 is mounted on the fixture base 1 and is used to support the workpiece to be welded. The support platform 2 has a sliding part 3 corresponding to the contour of the welding area 23 of the workpiece to be welded, so as to achieve precise positioning and adjustment. The fixture pressure plate 5 is located above the support platform 2 and is used to press and weld the welding area 23 of the workpiece to be welded. The shape and size of the fixture pressure plate 5 can be set with reference to the support platform 2, preferably matching the contour of the upper surface of the support platform 2, so as to completely cover the welding area 23, facilitating continuous welding of the welding area 23, ensuring the continuity of the weld, and improving the welding strength of the workpiece to be welded. The support platform 2, tooling base 1, and tooling pressure plate 5 can all be designed as rectangular structures. Their regular shape provides good planar stability and symmetry, enabling even distribution of pressure and load, reducing deformation or damage caused by localized stress concentration. The rigidity and bending resistance of the rectangular base can be further enhanced by adding reinforcing ribs at the bottom or using thicker materials, ensuring the stability of the entire welding fixture. Simultaneously, the rectangular base provides regular space, facilitating the rational arrangement of various components. For example, sliding parts 3 such as the slide groove 31 and lead screw can be arranged along the long or short side of the rectangle, making operation more convenient.

[0044] Specifically, the support platform 2 is provided with a sliding part 3, which corresponds to the contour of the welding area 23 of the workpiece to be welded. The contour of the welding area 23 may be rectangular, elliptical, or triangular, and the contour of the sliding part 3 can also be set accordingly. At least two sets of sliding positioning elements 4 are provided on the sliding part 3, and each set of sliding positioning elements 4 cooperates with the sliding part 3 and can slide relative to the sliding part 3 to adjust the position of the sliding positioning elements 4 according to the size and shape of different workpieces to be welded, so as to meet the flexible positioning of workpieces with similar contours but different sizes. At least two sets of sliding positioning elements 4 are provided to position the workpiece to be welded at multiple points, increase the positioning area, and improve stability; at the same time, each set of sliding positioning elements 4 cooperates with the sliding part 3 and can slide and be fixed along the sliding part 3 to ensure that the workpiece to be welded remains stable during the welding process.

[0045] The ultrasonic welding fixture provided in this embodiment has the following technical advantages compared to the prior art:

[0046] The ultrasonic welding fixture provided in this application includes a fixture base 1, a support platform 2, and a fixture pressure plate 5. The support platform 2 is provided with a sliding part 3 corresponding to the welding contour of the workpiece to be welded, and a sliding positioning part 4 cooperating with the sliding part 3. The sliding positioning part 4 can slide on the sliding part 3 to adjust its position according to the different shapes and sizes of the workpieces to be welded, thereby enhancing the versatility and compatibility of the fixture and reducing operating costs.

[0047] Example 2

[0048] This embodiment further improves upon the ultrasonic welding fixture of Embodiment 1.

[0049] In this embodiment, the sliding part 3 is a groove 31. The groove 31 provides a clear guide path for the sliding positioning member 4, allowing the sliding positioning member 4 to slide freely and be fixed within it. The design of the groove 31 needs to take into account the thickness of the support platform 2 and the size and range of motion of the sliding positioning member 4 to ensure that the sliding positioning member 4 can slide smoothly in the groove 31 and be reliably fixed.

[0050] Specifically, any sliding positioning element 4 is fixed to the slide groove 31 by a threaded fastener, such as a screw or bolt, which firmly fixes the sliding positioning element 4 in the slide groove 31. After the operator adjusts the position of the sliding positioning element 4, the position is locked by tightening the threaded fastener to prevent displacement during the welding process.

[0051] Furthermore, the chute 31 extends through the bearing platform 2 along the thickness direction; any set of sliding positioning elements 4 includes:

[0052] The positioning post 41 has two vertical ends protruding from the slide groove 31. The positioning post 41 has a welding part positioning part 411 and a stop part 412 arranged sequentially from top to bottom above the slide groove 31. The welding part positioning part 411 is used to fit with the positioning groove 24 of the workpiece to be welded; the stop part 412 is used to contact the top wall of the slide groove 31 to limit the vertical movement of the positioning post 41.

[0053] Adjusting nut 42 is fitted and threaded onto the lower part of positioning post 41 to fix positioning post 41 and slide groove 31.

[0054] The sliding positioning component 4 includes a positioning post 41 and an adjusting nut 42. The vertical ends of the positioning post 41 protrude from the top and bottom walls of the slide groove 31, and it can slide along the length of the slide groove 31. The positioning post 41 protrudes from the top wall of the slide groove 31 and is provided with a welding part positioning part 411 and a stop part 412 from top to bottom. The welding part positioning part 411 is used to fit with the positioning groove 24 of the workpiece to be welded. The welding part positioning part 411 can be set as a rectangular positioning part or a triangular positioning part. Correspondingly, the positioning groove 24 is set as a rectangular positioning groove 24 or a triangular positioning groove 24 to facilitate the positioning of the workpiece to be welded and prevent displacement during the welding process. The stop part 412 is used to place the positioning post 41 to slide down from the slide groove 31. The stop part 412 contacts the top of the slide groove 31 and limits the vertical movement of the positioning post 41. The stop part 412 can be integrally set with the positioning post 41 or separately set, and can be set as needed. All of these are within the protection scope of this application.

[0055] The adjusting nut 42 is located below the positioning pin 41, which protrudes from the bottom wall of the slide groove 31, and is used to fix the positioning pin 41 and the slide groove 31, further preventing displacement during welding. It is understood that the positioning pin 41 has external threads for threaded connection with the adjusting nut 42.

[0056] Furthermore, the stop part 412 is also configured as a stop nut, which is threadedly connected to the positioning post 41 to restrict the vertical movement of the positioning post 41. This is simple and effective, allowing the operator to easily adjust and fix the position of the positioning post 41 according to actual needs. Furthermore, the vertical position of the welding positioning part can be adjusted according to the different depths of the positioning groove 24 of different parts to be welded. The stop nut and adjusting nut 42 can have identical structures for ease of production. In one embodiment, external threads can be provided entirely on the positioning post 41 and below the welding part positioning part 411 to facilitate engagement with the stop nut and adjusting nut 42.

[0057] It is understandable that each set of sliding positioning parts 4 can be adjusted in height by adjusting the stop part 412 according to the different required extension height, so as to further meet the positioning requirements of the parts to be welded. The setting of the stop nut is more conducive to meeting the positioning needs of different parts to be welded, and improving the applicability and compatibility of welding fixtures.

[0058] Optionally, the cross-section of the weldment positioning part 411 can be rectangular or triangular, and the cross-sectional shape of the weldment positioning part 411 can be selected according to specific application requirements. A rectangular cross-section is suitable for matching regular-shaped positioning grooves 24, while a triangular cross-section may be more suitable for certain specific non-standard shapes, increasing the flexibility and adaptability of the design.

[0059] Example 3

[0060] This embodiment further improves the ultrasonic welding fixture of Embodiment 2.

[0061] In this embodiment, based on the above embodiments, the slide 31 is in two sets. One set includes two slides 31 that are arranged opposite each other in the width direction of the support platform 2 and the slides 31 extend in the length direction of the support platform 2. The other set includes two slides 31 that are arranged opposite each other in the length direction of the support platform 2 and the slides 31 extend in the width direction of the support platform 2. The two sets of slides 31 surround each other to form a rectangular structure and are not connected at the end points.

[0062] The slide grooves 31 are configured in two groups, each group including two slide grooves 31. The two slide grooves 31 of the first group are arranged opposite each other in the width direction of the support platform 2 and extend in the length direction of the support platform 2. The two slide grooves 31 of the second group are arranged opposite each other in the length direction of the support platform 2 and extend in the width direction of the support platform 2. Preferably, the two slide grooves 31 of the second group are located between the two slide grooves 31 of the first group in the width direction of the support platform 2. The two slide grooves 31 of the first group and the two slide grooves 31 of the second group form a rectangular structure around each other and are disconnected and discontinuous at the four ends of the rectangle to provide fixed support through the ends.

[0063] Alternatively, the slides 31 can be configured as two sets, each set including two slides 31. The two slides 31 of the first set are arranged opposite each other in the width direction of the support platform 2 and extend in the length direction of the support platform 2. The two slides 31 of the second set are arranged opposite each other in the length direction of the support platform 2 and extend in the width direction of the support platform 2. Preferably, the two slides 31 of the first set are located between the two slides 31 of the second set in the length direction of the support platform 2. The two slides 31 of the first set and the two slides 31 of the second set form a rectangular structure around each other and are broken and discontinuous at the four ends of the rectangle to provide fixed support through the ends.

[0064] It is understandable that the above-mentioned chute 31 setting method can also be used for positioning welding of triangular or trapezoidal parts to be welded, further improving the applicability of welding fixtures.

[0065] Example 4

[0066] This embodiment further improves the ultrasonic welding fixture of Embodiment 2.

[0067] In this embodiment, the slide 31 can be configured as a U-shaped slide 31, including two slides 31 extending in the length direction of the support platform 2. The two slides 31 are also connected by a slide 31 extending in the width direction of the support platform 2. The slide 31 extending in the width direction is perpendicular to the two slides 31 extending in the length direction, and together they form three sides of a rectangular structure. The other side of the rectangular structure does not have a groove structure. This side provides fixed support for the other three sides of the rectangular structure. In this embodiment, four sliding positioning elements 4 are provided in the three slides 31 to better position and support the workpiece to be welded.

[0068] Example 5

[0069] This embodiment further improves the ultrasonic welding fixture of Embodiment 2.

[0070] In this embodiment, there are two slides 31, which extend along the length of the support platform 2 and are arranged in parallel. Two sliding positioning elements 4 can be provided on each slide 31. The position can be adjusted by sliding the two sliding positioning elements 4 on the same slide 31, so as to realize the positioning of different parts to be welded. In particular, the positioning of different parts to be welded where the welding area 23 is rectangular can be achieved by only setting two parallel slides 31 on the support platform 2. The structure is simple and easy to manufacture.

[0071] Example 6

[0072] This embodiment further improves the ultrasonic welding fixture described in the above embodiments.

[0073] Each slide groove 31 is provided with at least one set of sliding positioning elements 4, thereby further improving the flexibility and applicability of the device; the sliding positioning elements 4 on each slide groove 31 can slide flexibly to achieve positioning of different parts to be welded. Preferably, each slide groove 31 is provided with one set of sliding positioning elements 4 to ensure effective positioning and fixation regardless of which slide groove 31 it is on. This design can improve the redundancy of the system. Even if one sliding positioning element 4 fails, the other sliding positioning elements 4 can still ensure the stability of the welded parts.

[0074] Example 7

[0075] This embodiment further improves upon the ultrasonic welding fixture of Embodiment 1.

[0076] In this embodiment, the sliding part 3 is configured as a lead screw, and the sliding positioning component 4 includes a sliding nut and a positioning component. The sliding nut cooperates with the lead screw, and the rotation of the lead screw enables the sliding nut to move linearly along the length of the lead screw. Simultaneously, it allows for precise adjustment of the linear movement of the sliding nut, improving its movement accuracy. The positioning component is located above the sliding nut and is used to position the workpiece to be welded. Similarly, the positioning component can be configured as a positioning post 41, which cooperates with the positioning groove 24 of the workpiece to be welded to position it. Specifically, the positioning part can be configured as a rectangular positioning part or a triangular positioning part, and correspondingly, the positioning groove 24 can be configured as a rectangular positioning groove 24 or a triangular positioning groove 24 to facilitate the positioning of the workpiece to be welded and prevent displacement during the welding process.

[0077] Taking the welding area 23 of the workpiece to be welded as a rectangle for explanation, the sliding part 3 can also be set as a rectangular structure, that is, by setting four lead screws to form a rectangle, and each lead screw is provided with a sliding positioning part 4, thereby ensuring effective positioning and fixation, improving the redundancy of the system, and even if a lead screw and sliding nut have a problem, the other sliding positioning parts 4 can still ensure the stability of the welded workpiece.

[0078] When the sliding part 3 uses a lead screw, the sliding positioning part 4 consists of a sliding nut and a positioning element. The sliding nut is fitted onto the lead screw, and its position can be precisely adjusted by rotating the lead screw, thereby achieving more precise positioning. The positioning element is used to directly contact and fix the workpiece to be welded.

[0079] Understandably, in addition to the traditional rectangular structure, the sliding part 3 can also be designed as a triangle or an ellipse. This design can be optimized according to the specific shape and size of the part to be welded, providing better adaptability and positioning accuracy. Different shapes help to better guide and fix the sliding positioning part 4 in specific application scenarios.

[0080] In one specific embodiment, the ultrasonic welding fixture provided in this application includes a fixture base 1, a support platform 2, a fixture pressure plate 5, and at least two sets of sliding positioning parts 4. The fixture base 1, support platform 2, and fixture pressure plate 5 are all rectangular structures. The fixture base 1 provides basic support for the welding fixture. The support platform 2 is mounted on the fixture base 1 and is used to support the workpiece to be welded. The support platform 2 has a sliding part 3 corresponding to the contour of the welding area 23 of the workpiece to be welded, so as to achieve precise positioning and adjustment. The fixture pressure plate 5 is located above the support platform 2 and is used to press and weld the welding area 23 of the workpiece to be welded. The shape and size of the fixture pressure plate 5 can be set with reference to the support platform 2, preferably matching the contour of the upper surface of the support platform 2, so as to completely cover the welding area 23, facilitating continuous welding of the welding area 23, ensuring the continuity of the weld, and improving the welding strength of the workpiece to be welded.

[0081] Taking a transparent mirror 22 and a control panel 21 as the components to be welded, and a rectangular welding area 23 as an example: Four rectangular positioning grooves 24 are added to the edge of the welding area of ​​the transparent mirror 22. Four sliding positioning components 4 are also provided. The welding positioning part 411 of each sliding positioning component 4 is also set as a rectangular positioning post 41. The sliding part 3 has a rectangular structure, consisting of two sets of sliding grooves 31. One set includes two sliding grooves 31 arranged opposite each other in the width direction of the support platform 2, and the sliding grooves 31 extend in the length direction of the support platform 2. The other set includes two sliding grooves 31 arranged opposite each other in the length direction of the support platform 2, and the sliding grooves 31 extend in the width direction of the support platform 2. The two sets of sliding grooves 31 surround to form a rectangular structure and are disconnected at the endpoints. Each sliding positioning component 4 has an adjusting nut 42 at its bottom and a stop nut at its top. During use, the extension height of the positioning post 41 can be adjusted by the stop nut at the top of the positioning post 41 to adapt to the depth of different positioning grooves 24. The distance between the two positioning grooves 24 can also be adjusted by the adjusting nut 42 at the bottom of the positioning post 41. After the positioning pin 41 is inserted into the corresponding positioning slot 24 of the control panel 21, the adjusting nut 42 is tightened to fix the position and ultrasonic welding is performed. This ultrasonic welding fixture is movable and the positioning size can be adjusted according to different control panels 21.

[0082] In this application, the control panel 21 is placed in the welding area 23 of the tooling during welding. A positioning groove 24 is added inside the control panel 21, and the welding tooling includes a sliding groove 31 and a sliding positioning element 4. The distance between the positioning pins 41 is adjusted using the sliding groove 31 and adjusting nut 42, allowing the positioning pins 41 to be inserted into the corresponding positioning groove 24 of the control panel 21 for fixation. The transparent mirror 22 is placed in the corresponding position on the control panel 21. Ultrasonic energy is transmitted to the welding area 23 of the transparent mirror 22 via the tooling pressure plate 5 for ultrasonic welding. Compared to existing technologies where the support surface of the welding tooling is fixed to the welding area 23 of the control panel 21, and one welding tooling can only be used for one type of control panel 21, resulting in poor adaptability and high production costs due to the need for matching welding tooling for different control panels 21, this application provides a highly flexible and precise ultrasonic welding tooling. Through various forms of the sliding part 3, the structure of the sliding positioning element 4, and its fixing method, this design can adapt to various shapes and sizes of parts to be welded, ensuring high precision and stability during the welding process.

[0083] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0084] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. An ultrasonic welding fixture, characterized in that, include: Tooling base; A support platform, located on the tooling base, is used to support the workpiece to be welded; the support platform is provided with a sliding part corresponding to the contour of the welding area of ​​the workpiece to be welded; At least two sets of sliding positioning elements are used to position the workpiece in the positioning groove. Each set of the sliding positioning elements cooperates with the sliding part and can slide and be fixed along the sliding part. The tooling pressure plate, located above the support platform, is used to press and weld the welding area of ​​the workpiece to be welded.

2. The ultrasonic welding fixture according to claim 1, characterized in that, The sliding part is a groove.

3. The ultrasonic welding fixture according to claim 2, characterized in that, Each of the sliding positioning components is fixed to the slide groove by a threaded fastener.

4. The ultrasonic welding fixture according to claim 3, characterized in that, The groove extends through the support platform along the thickness direction; any set of the sliding positioning components includes: The positioning post has two vertical ends protruding from the slide groove. Above the slide groove, the positioning post has a welding part positioning section and a stop section arranged from top to bottom. The welding part positioning section is used to fit into the positioning groove of the workpiece to be welded. The stop section is used to contact the top wall of the slide groove to limit the vertical movement of the positioning post. An adjusting nut is fitted and threaded onto the lower part of the positioning post to fix the positioning post and the slide groove.

5. The ultrasonic welding fixture according to claim 4, characterized in that, The stop part is a stop nut, which is fitted and threaded onto the positioning post.

6. The ultrasonic welding fixture according to claim 4, characterized in that, The cross-section of the positioning part of the weldment is rectangular or triangular.

7. The ultrasonic welding fixture according to any one of claims 2-6, characterized in that, The slide is in two sets, one set including two slides that are arranged opposite each other in the width direction of the support platform, and the slides extend in the length direction of the support platform; Another set includes two slides arranged opposite each other in the length direction of the support platform, and the slides extend in the width direction of the support platform; The two sets of grooves form a rectangular structure around each other and are not connected at the ends.

8. The ultrasonic welding fixture according to claim 7, characterized in that, Each of the slide grooves is provided with at least one set of the sliding positioning elements.

9. The ultrasonic welding fixture according to claim 8, characterized in that, The sliding part is a lead screw, and the sliding positioning component includes a sliding nut and a positioning component. The sliding nut is fitted onto the lead screw, and the positioning component is fixed to the sliding nut and used to position the part to be welded.

10. The ultrasonic welding fixture according to claim 1, characterized in that, The sliding part is a triangular sliding part or an elliptical sliding part.

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