Ultrasonic welding clamp

Abstract

The utility model discloses an ultrasonic welding clamp which comprises a first supporting plate, a second supporting plate, a third supporting plate and a feeding base. The first supporting plate, the second supporting plate and the third supporting plate are all installed on the feeding base, and the third supporting plate is located between the first supporting plate and the second supporting plate. The first supporting plate and the second supporting plate are each provided with a baffle and a mounting groove. The baffle is parallel to the third supporting plate, and a connecting hole matched with the mounting groove is formed in the baffle; fasteners penetrate through the mounting grooves to be in threaded connection with the connecting holes, and the baffle is fixed to the first supporting plate. The mounting groove extends in the direction perpendicular to the third supporting plate so as to adjust the distance between the baffle and the third supporting plate. The third supporting plate is installed on the feeding base through a height adjusting assembly. According to the utility model, the length and width compatibility of the size of the battery cell can be effectively expanded, and the compatibility range of the height of the adapter plate can be simultaneously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium electronic batteries, in particular to an ultrasonic welding fixture. Background Art

[0002] In the manufacturing process of lithium-ion batteries, whether using winding or lamination technology, the formation of the battery cell must be completed during the assembly stage. Ultrasonic welding technology plays a crucial role in the assembly stage. It connects the battery cell tabs, providing the conditions for connecting the battery cell to the outside world. During the production process, a fixture must be used to precisely locate the position of the connecting tab and the battery cell, and the battery cell tab is fixed to the predetermined position of the connecting tab through a protective cover to complete the welding process. However, traditional ultrasonic welding fixtures are only suitable for battery cells of a single specification. Once the battery cell size changes, the fixture must be completely redesigned. Especially for pilot production lines, frequent model changes and inconsistent specifications for the welding height of the connecting tabs mean that even the same battery cell model may require multiple sets of welding fixtures.

[0003] Therefore, it is urgent to propose an ultrasonic welding fixture to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an ultrasonic welding fixture that can effectively expand the length and width compatibility of the battery core size and simultaneously improve the compatibility range of the adapter height.

[0005] In order to solve the above technical problems, the utility model provides an ultrasonic welding fixture, comprising a first support plate, a second support plate, a third support plate and a loading seat;

[0006] The first support plate, the second support plate and the third support plate are all mounted on the loading seat, and the third support plate is located between the first support plate and the second support plate;

[0007] The first and second support plates are both provided with baffles and mounting slots; the baffles are parallel to the third support plate, and are provided with connecting holes that match the mounting slots; fasteners are passed through the mounting slots and are threadedly connected to the connecting holes to fix the baffles to the first support plate; the mounting slots extend in a direction perpendicular to the third support plate to adjust the distance between the baffles and the third support plate;

[0008] The third supporting plate is mounted on the loading seat via a height adjustment assembly.

[0009] Furthermore, there are multiple installation slots, and the multiple installation slots are arranged in parallel.

[0010] Furthermore, the height adjustment assembly includes a screw rod and a fixing plate;

[0011] The fixed plate is installed on the third supporting plate; one end of the screw rod is rotatably connected with the third supporting plate and is threadedly connected with the feeding seat; the surface of the fixed plate away from the third supporting plate is provided with a plurality of positioning pins, device holes and mounting holes; the mounting holes are located between the positioning pins and the device holes; the positioning pins are arranged at the edges of the fixed plate.

[0012] Further, a plurality of supporting columns are connected between the fixed plate and the third supporting plate.

[0013] Further, the device further comprises a protective cover; one side of the first supporting plate or the second supporting plate is provided with a placing plate; the protective cover is located on the placing plate; during operation, the protective cover is placed on the fixed plate.

[0014] Further, the protective cover is provided with a positioning hole; the placing plate is provided with a fixing pin; the positioning pin or the fixing pin passes through the positioning hole.

[0015] Further, the positioning hole is a U-shaped hole.

[0016] Further, the protective cover is further provided with a plurality of first avoiding holes; the first avoiding holes correspond to the device holes.

[0017] Further, the protective cover is further provided with a second avoiding hole; the second avoiding hole corresponds to the mounting hole.

[0018] Further, the size of the protective cover corresponds to the size of the fixed plate.

[0019] Through the above technical solution, the device has the following beneficial effects:

[0020] Through the arrangement of the first supporting plate, the second supporting plate, the third supporting plate and the feeding seat, and the arrangement that the first supporting plate, the second supporting plate and the third supporting plate are all installed on the feeding seat and the third supporting plate is located between the first supporting plate and the second supporting plate, the first supporting plate and the second supporting plate are both provided with a baffle and a mounting groove; the baffle is parallel to the third supporting plate, and the baffle is provided with a connecting hole matched with the mounting groove; the baffle is fixed on the first supporting plate through the threaded connection of the fastener passing through the mounting groove and the connecting hole; the mounting groove extends along the direction perpendicular to the third supporting plate to adjust the distance between the baffle and the third supporting plate; the third supporting plate is installed on the feeding seat through the height adjusting assembly. The device can effectively expand the length-width compatibility of the battery cell size and can simultaneously expand the compatible range of the adapter piece height. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is an overall structure schematic view of the ultrasonic welding fixture without the protective cover in an embodiment of the device.

[0022] Figure 2 This is an exploded view of an ultrasonic welding fixture in one embodiment of the present invention when no protective cover is used;

[0023] Figure 3 This is a schematic diagram of the overall structure of an ultrasonic welding fixture in an embodiment of the present invention when a protective cover is used;

[0024] Figure 4 This is an exploded view of an ultrasonic welding fixture in an embodiment of the present invention when a protective cover is used;

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the ultrasonic welding fixture in one embodiment of the present invention when no protective cover is used.

[0026] In the figure, 1. first support plate; 2. second support plate; 3. third support plate; 5. baffle; 6. mounting groove; 7. fixing plate; 71. positioning pin; 72. installation hole; 73. mounting hole; 8. support column; 9. protective cover; 91. positioning hole; 92. first avoidance hole; 93. second avoidance hole; 10. placement plate; 100. fixing pin; 11. first battery cell; 12. second battery cell. DETAILED DESCRIPTION

[0027] The following is a more detailed description of an ultrasonic welding fixture of the present invention, with reference to the accompanying drawings, which illustrate preferred embodiments of the present invention. It should be understood that those skilled in the art may modify the present invention as described herein while still achieving the beneficial effects of the present invention. Therefore, the following description should be understood as a general guide for those skilled in the art and not as a limitation of the present invention.

[0028] The following paragraphs describe the present invention in more detail by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are greatly simplified and not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention.

[0029] like Figure 1-Figure 5 As shown, the embodiment of the present invention provides a convenient and practical ultrasonic welding fixture, which includes a first support plate 1, a second support plate 2, a third support plate 3 and a loading seat (not shown in the figure for the sake of simplicity).

[0030] Specifically, the first pallet 1, the second pallet 2 and the third pallet 3 are all installed on the loading seat, and the third pallet 3 is located between the first pallet 1 and the second pallet 2; the first pallet 1 and the second pallet 2 are both provided with a baffle 5 and a mounting groove 6; the baffle 5 is parallel to the third pallet 3, and the baffle 5 is provided with a connecting hole that matches the mounting groove 6 (for the sake of simplicity of the diagram, it is not shown in the figure); the baffle 5 is fixed to the first pallet 1 by a fastener passing through the mounting groove 6 and threadedly connected to the connecting hole; the mounting groove 6 extends in a direction perpendicular to the third pallet 3 to adjust the distance between the baffle 5 and the third pallet 3; the third pallet 3 is installed on the loading seat through a height adjustment assembly.

[0031] By providing baffles 5 and mounting slots 6 on the first and second support plates 1 and 2, and securing baffles 5 with fasteners (not shown for simplicity), the fixture can accommodate battery cells of varying sizes and improve fixture compatibility. Furthermore, the mounting slots 6 of this embodiment extend perpendicular to the third support plate 3, allowing the distance between baffles 5 and the third support plate 3 to be adjusted, thereby accommodating battery cells of varying widths.

[0032] In this embodiment, multiple mounting slots 6 are provided; these slots are arranged in parallel. These multiple, parallel mounting slots 6 provide multiple adjustment positions, allowing for more precise adjustment of the baffle 5 to accommodate battery cells of varying specifications. By selecting the most appropriate hole position for fastening within the various mounting slots 6, the position of the baffle 5 can be more precisely controlled, thereby improving welding accuracy. Furthermore, if a mounting slot 6 becomes damaged, it can be quickly switched to another slot, reducing production downtime due to maintenance.

[0033] In a specific embodiment, the height adjustment assembly includes a screw (not shown in the figure for the sake of simplicity) and a fixing plate 7. Specifically, the fixing plate 7 is mounted on the third support plate 3; one end of the screw passes through the loading seat and is rotatably connected to the third support plate 3, and is threadedly connected to the loading seat; a plurality of positioning pins 71, device holes 72 and mounting holes 73 are provided on the surface of the fixing plate 7 away from the third support plate 3; the mounting hole 73 is located between the positioning pin 71 and the device hole 72; the positioning pin 71 is provided on the edge of the fixing plate 7. Through the threaded connection between the screw and the loading seat, the height of the third support plate 3 can be precisely adjusted to accommodate battery cells of different thicknesses. The multiple positioning pins 71, device holes 72 and mounting holes 73 on the fixing plate 7 provide a variety of positioning and installation options, which help to ensure the accurate positioning of the third support plate 3.

[0034] Among them, continue to refer to Figure 5As shown, a plurality of support columns 8 are connected between the fixing plate 7 and the third supporting plate 3, which can not only increase the height of the fixing plate 7, but also enable the fixing plate 7 to move up and down smoothly when the height is adjusted by the screw rod.

[0035] Further, the embodiment also comprises a protective cover 9. Specifically, one side of the first supporting plate 1 or the second supporting plate 2 is provided with a placing plate 10; the protective cover 9 is located on the placing plate 10; during operation, the protective cover 9 is placed on the fixing plate 7. The protective cover 9 is placed on the fixing plate 7 during operation, which can prevent the splashes generated during welding from hurting the operator and improve the safety of operation.

[0036] In the embodiment, the protective cover 9 is provided with a positioning hole 91. Specifically, the placing plate 10 is provided with a fixing pin 100; the positioning pin 71 or the fixing pin 100 passes through the positioning hole 91. The cooperation of the positioning hole 91 and the fixing pin 100 can ensure that the protective cover 9 is accurately positioned on the placing plate 10, preventing displacement during welding. Accurate positioning can ensure that the protective cover 9 stably covers the welding area during welding, thereby more effectively protecting the operator and equipment.

[0037] In the embodiment, the positioning hole 91 is a U-shaped hole. The U-shaped positioning hole 91 provides a flexible positioning method, allowing a certain range of position adjustment, making the installation of the protective cover 9 more convenient.

[0038] Preferably, the protective cover 9 is also provided with a plurality of first avoiding holes 92. Specifically, the first avoiding holes 92 correspond to the device holes 72.

[0039] Preferably, the protective cover 9 is also provided with a second avoiding hole 93. Specifically, the second avoiding hole 93 corresponds to the mounting hole 73.

[0040] The design of the first avoiding hole 92 and the second avoiding hole 93 enables the protective cover 9 to avoid the device hole 72 and the mounting hole 73, thereby preventing the protective cover 9 from interfering with the normal use of the device hole 72 and the mounting hole 73.

[0041] In the embodiment, the size of the protective cover 9 corresponds to the size of the fixing plate 7, so that the protective cover 9 can completely cover the fixing plate 7, providing comprehensive protection.

[0042] As known by those skilled in the art, the size of the protective cover 9, the first supporting plate 1, the second supporting plate 2 and the third supporting plate 3 of the embodiment can be set according to actual needs.

[0043] In addition, the embodiment can further be provided with a scale (not shown in the figure for the sake of simplicity of illustration) on the feeding seat, which can be correspondingly provided according to the position of the lead screw, and the height of the fixing plate 7 can be accurately adjusted by observing the scale.

[0044] In the initial state, the protective cover 9 is located on the placing plate 10. For example, the two baffles 5 are respectively located on one side of the first supporting plate 1 and one side of the second supporting plate 2. During operation, the connecting piece is placed on the device hole 72 (i.e., opposite the first avoiding hole 92 of the protective cover 9), the first battery cell 11 is placed on the first supporting plate 1, the second battery cell 12 is placed on the second supporting plate 2, and the position of the tab is aligned with the connecting piece. At this time, the first battery cell 11 and the second battery cell 12 are located between the two baffles 5. Then, the two baffles 5 are fixed in the mounting groove 6 by fasteners (such as screws), so as to clamp and fix the first battery cell 11 and the second battery cell 12. Then, the protective cover 9 is placed on the fixing plate 7, and the positioning hole 91 is aligned with the positioning pin 71, so that the positioning pin 71 is inserted into the positioning hole 91, and subsequent welding operation can be performed. When it is necessary to replace battery cells of different sizes, it is only necessary to adjust the position of the baffle 5 on the mounting groove 6. When it is necessary to adjust the height of the fixing plate 7, it is only necessary to rotate the lead screw to drive the fixing plate 7 to move up and down.

[0045] In summary, the ultrasonic welding fixture has the following advantages:

[0046] By setting the first supporting plate, the second supporting plate, the third supporting plate and the feeding seat, and by mounting the first supporting plate, the second supporting plate and the third supporting plate on the feeding seat, and by locating the third supporting plate between the first supporting plate and the second supporting plate, and by providing the first supporting plate and the second supporting plate with baffles and mounting grooves, and by providing the baffles parallel to the third supporting plate and provided with connecting holes matched with the mounting grooves, and by screwing the fasteners through the mounting grooves and the connecting holes to fix the baffles on the first supporting plate, and by extending the mounting grooves in a direction perpendicular to the third supporting plate to adjust the distance between the baffles and the third supporting plate, and by mounting the third supporting plate on the feeding seat through the height adjusting assembly, the device can effectively expand the length-width compatibility of the battery cell size and can simultaneously expand the compatible range of the height of the adapter piece.

[0047] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. An ultrasonic welding fixture, characterized in that: It includes a first supporting plate, a second supporting plate, a third supporting plate and a loading seat; The first support plate, the second support plate and the third support plate are all mounted on the loading seat, and the third support plate is located between the first support plate and the second support plate; The first and second support plates are both provided with baffles and mounting slots; the baffles are parallel to the third support plate, and are provided with connecting holes that match the mounting slots; fasteners are passed through the mounting slots and are threadedly connected to the connecting holes to fix the baffles to the first support plate; the mounting slots extend in a direction perpendicular to the third support plate to adjust the distance between the baffles and the third support plate; The third supporting plate is mounted on the loading seat via a height adjustment assembly.

2. The ultrasonic welding fixture according to claim 1, wherein: There are multiple installation slots, and there are multiple connection holes correspondingly; the multiple installation slots are arranged in parallel.

3. The ultrasonic welding fixture according to claim 1, wherein: The height adjustment assembly includes a screw rod and a fixing plate; The fixed plate is mounted on the third support plate; one end of the screw rod passes through the loading seat and is rotatably connected to the third support plate, and is threadedly connected to the loading seat; a plurality of positioning pins, installation holes and mounting holes are provided on the surface of the fixed plate away from the third support plate; the mounting hole is located between the positioning pin and the installation hole; the positioning pin is arranged at the edge of the fixed plate.

4. The ultrasonic welding fixture according to claim 3, characterized in that: A plurality of support columns are connected between the fixing plate and the third supporting plate.

5. The ultrasonic welding fixture according to claim 3, wherein: It also includes a protective cover; a placement plate is provided on one side of the first support plate or the second support plate; the protective cover is located on the placement plate; during operation, the protective cover is placed on the fixed plate.

6. The ultrasonic welding fixture according to claim 5, characterized in that: The protective cover is provided with a positioning hole; the placement plate is provided with a fixing pin; the positioning pin or the fixing pin passes through the positioning hole.

7. The ultrasonic welding fixture according to claim 6, characterized in that: The positioning hole is a U-shaped hole.

8. The ultrasonic welding fixture according to claim 5, characterized in that: The protective cover is further provided with a plurality of first avoidance holes; the first avoidance holes correspond to the device holes.

9. The ultrasonic welding fixture according to claim 5, characterized in that: The protective cover is further provided with a second avoidance hole; the second avoidance hole corresponds to the mounting hole.

10. The ultrasonic welding fixture according to claim 5, wherein: The size of the protection cover is set corresponding to the size of the fixing plate.

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