An ultrasonic wire harness welding fixture

Abstract

This utility model discloses an ultrasonic wire harness welding fixture, including a base with an installation groove at the bottom and a slider inside the groove. The slider has a locking groove and a driving groove. A sliding groove is located at the top of the base, communicating with the installation groove. A slide plate and a spring are slidably mounted within the sliding groove. One end of the spring is connected to the inner wall of the sliding groove, and the other end is connected to the slide plate. Two sets of clamping grooves are also provided through the slide plate. By creating clamping grooves on the slide plate, the two clamping blocks can move relative to each other using the cooperation of the driving column on the clamping block and the clamping groove, thus clamping and fixing the wire to be welded. The slide plate is slidably mounted in the sliding groove to move the clamped wire. The locking groove on the slider and the driving column gradually drive the clamping of the clamping blocks and the feeding of the wire, improving work efficiency. Furthermore, the automatic feeding allows the wire to be inserted into the wiring hole on the terminal, and the insertion depth can be controlled to ensure welding quality.

Description

Technical Field

[0001] This utility model belongs to the field of ultrasonic welding fixture technology, and in particular relates to an ultrasonic wire harness welding fixture. Background Technology

[0002] Ultrasonic welding is a process that uses high-frequency vibration energy to weld two or more materials. This technology is widely used in industries such as automotive, electronics, medical, and packaging. However, when performing ultrasonic welding, positioning fixtures are needed to assist in positioning the welding materials.

[0003] In existing technologies, ultrasonic welding is already used to fix wires and terminals. However, before welding, the wires need to be inserted into the wiring holes on the terminals and then placed on the welding socket for welding. Currently, the insertion of wires and terminals is done manually, which is inefficient. If the length of the wire inserted into the terminal is insufficient during manual insertion, it is easy to fall off after welding.

[0004] Therefore, we need to design an ultrasonic wire harness welding fixture to solve these problems. Utility Model Content

[0005] The problem to be solved by this utility model is to provide an ultrasonic wire harness welding fixture.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] An ultrasonic wire harness welding fixture includes a base with a mounting groove at the bottom and a slider inside the mounting groove. The slider has a locking groove and a driving groove. A sliding groove is provided at the top of the base and communicates with the mounting groove. A slide plate and a spring are slidably disposed in the sliding groove. One end of the spring is connected to the inner wall of the sliding groove, and the other end is connected to the slide plate. Two sets of clamping grooves are also provided through the slide plate. A clamping block is slidably disposed on the slide plate. A driving column is fixedly disposed at the bottom of the clamping block. The free end of the driving column passes through the clamping groove and is located in the locking groove. A driving block is also provided through the base on one side of the sliding groove. One end of the driving block is located in the driving groove, and the bottom surfaces of the driving block and the driving groove are parallel inclined surfaces.

[0008] Preferably, a connecting groove is formed on a set of opposite inner walls of the slide, and a connecting block is fixedly provided on a set of opposite side walls of the slide plate. The connecting block is located in the connecting groove and slides in contact with the connecting groove.

[0009] This design, through the sliding contact between the connecting groove and the connecting block, provides guidance and limitation for the movement of the slide within the groove. It prevents the slide from shifting or wobbling during sliding, enhances the stability of the slide's movement, ensures the precise movement trajectory of the clamping block, avoids uneven clamping force caused by wobbling, and thus stabilizes the clamping position of the wire harness. This improves the accuracy of wire harness positioning during welding and ensures welding quality.

[0010] Preferably, a reset groove is provided on the inner wall of the mounting groove, and a tension spring is provided in the reset groove. One end of the tension spring is connected to the inner wall of the reset groove, and the other end is connected to the side wall of the slider.

[0011] This configuration, by connecting the tension spring in the reset slot to the slider, allows the tension spring to automatically return the slider to its original position through elastic tension after the driving force of the drive block on the slider disappears, eliminating the need for manual reset, simplifying the operation process and improving the efficiency of the fixture. At the same time, the reset function of the tension spring enables the slider to return to its initial position accurately, ensuring the consistency of each clamping action and avoiding unstable clamping force due to slider position deviation, thus providing a reliable positioning basis for wire harness welding.

[0012] Preferably, a stop block is provided through the base located between the drive block and the slider, a lifting column is fixedly provided on a set of opposite side walls of the stop block, a shrinkage groove is provided on the slider at a position opposite to the stop block, a lifting groove is fixedly provided on a set of opposite inner walls of the shrinkage groove, and the free end of the lifting column is located in the lifting groove.

[0013] With this configuration, the block, lifting column, shrinkage groove, and lifting groove work together to raise or lower the block by sliding the lifting column within the lifting groove as the slider moves. When the slider moves, the lifting column moves along the lifting groove, gradually aligning the top surface of the block with the top surface of the base. This allows for limiting the insertion depth of the wire before welding and enables the slide and clamping block to move the wire onto the welding seat after the slide moves downward, ensuring the accuracy of the welding position.

[0014] Preferably, a limiting groove is formed on the inner wall of the two mounting grooves perpendicular to the reset groove, and a limiting block is fixedly provided on a set of opposite side walls of the slider. The limiting block is located in the limiting groove and slides against the inner wall of the limiting groove.

[0015] This design, with its sliding fit between the limiting groove and the limiting block, restricts the movement direction of the slider within the mounting groove, ensuring that the slider can only move linearly along the direction defined by the limiting groove. This prevents the failure of the inclined surface fit between the drive groove and the drive block due to slider wobbling or deviation, thus ensuring accurate transmission of the driving force from the drive block to the slider. This effectively improves the precision and stability of the slider's movement, making the clamping action of the clamping block more reliable, preventing deviation in the wire harness clamping position due to slider deviation, and ensuring the accuracy of the welding position.

[0016] Preferably, each group of clamping grooves has two clamping grooves, and the two clamping grooves in the same group are symmetrically distributed along the center line of the slide. The extension line of the clamping groove intersects the moving direction of the slide but is not perpendicular to it.

[0017] This configuration, with two clamping slots symmetrically distributed along the centerline of the slide, ensures symmetrical driving force on the clamping blocks, guaranteeing uniform force distribution when clamping the wire harness and preventing displacement or deformation due to unilateral force. The extension lines of the clamping slots intersect the slide's movement direction but are not perpendicular. This tilt angle design allows the linear motion of the slide to be converted into lateral clamping force on the clamping blocks via the drive column during slide movement, achieving clamping action using geometric transmission principles and making the clamping process smoother. Furthermore, the single-sided double-slot design ensures that the two clamping blocks remain parallel during movement even without external limiting, guaranteeing effective clamping.

[0018] Preferably, the depth of the shrinkage groove is not less than the height of the stop block, the extension direction of the lifting groove intersects with but is not perpendicular to the moving direction of the slider, and when the lifting column moves from the top end of the lifting groove to the bottom end, the top surface of the stop block will be flush with the top surface of the base.

[0019] With this configuration, the depth of the shrinkage groove is not less than the height of the stop block, ensuring that the stop block is fully embedded in the shrinkage groove when retracted, preventing the top surface of the stop block from being higher than the top surface of the base and affecting the placement of wires and terminals. The extension direction of the lifting groove intersects with the movement direction of the slider but is not perpendicular, so the lifting height of the stop block can be controlled by the movement of the slider. When the lifting column moves from the top of the lifting groove to the bottom, the top surface of the stop block is flush with the top surface of the base, ensuring the flatness of the top surface of the base and not affecting the smooth progress of the welding operation.

[0020] The advantages and positive effects of this utility model are:

[0021] This invention utilizes a clamping groove on a slide plate, where the drive column on the clamping block and the clamping groove work together to allow the two clamping blocks to move relative to each other, thus clamping and fixing the wire to be welded. The slide plate is slidably installed within the groove to move the clamped wire. The cooperation between the slot on the slider and the drive column gradually drives the clamping of the clamping blocks and the feeding of the wire, improving work efficiency. Furthermore, the automatic feeding system allows the wire to be inserted into the wiring hole on the terminal, and the insertion depth can be controlled to ensure welding quality. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the bottom structure of the base of this utility model;

[0025] Figure 3 This is a top view schematic diagram of the overall structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the longitudinal section of the internal structure of this utility model;

[0027] Figure 5 This is a schematic cross-sectional view of the internal structure of this utility model.

[0028] The annotations in the attached figures are explained as follows:

[0029] 1. Base; 2. Slider; 3. Reset groove; 4. Tension spring; 5. Limit groove; 6. Limit block; 7. Drive block; 8. Welding base; 9. Clamping block; 10. Stop block; 11. Spring; 12. Slide groove; 13. Slide plate; 14. Clamping groove; 15. Connecting groove; 16. Drive groove; 17. Drive column; 18. Slot; 19. Retraction groove; 20. Lifting groove; 21. Lifting column; 22. Mounting groove; 23. Connecting block; 24. Terminal; 25. Wire groove. Detailed Implementation

[0030] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The present invention will be further described below with reference to the accompanying drawings:

[0033] Example 1: As Figures 1-4 As shown, an ultrasonic wire harness welding fixture includes a base 1. The bottom of the base 1 has an installation groove 22. A slider 2 is provided in the installation groove 22. The slider 2 is provided with a locking groove 18 and a driving groove 16. The top of the base 1 is provided with a sliding groove 12, which is connected to the installation groove 22. A slide plate 13 and a spring 11 are slidably arranged in the sliding groove 12. One end of the spring 11 is connected to the inner wall of the sliding groove 12, and the other end is connected to the slide plate 13. Two sets of clamping grooves 14 are also provided through the slide plate 13. A clamping block 9 is slidably arranged on the slide plate 13. A driving column 17 is fixedly arranged at the bottom of the clamping block 9. The free end of the driving column 17 passes through the clamping groove 14 and is located in the locking groove 18. A driving block 7 is also provided through the base 1 on one side of the sliding groove 12. One end of the driving block 7 is located in the driving groove 16, and the bottom surfaces of the driving block 7 and the driving groove 16 are parallel inclined surfaces.

[0034] When the drive block 7 moves toward the slider 2, its inclined surface and the bottom surface of the drive groove 16 are inclined to each other and slide together, which can push the slider 2 to generate lateral displacement in the mounting groove 22. The movement of the slider 2 drives the drive column 17 in the slot 18 to move. The drive column 17 slides in the clamping groove 14, converting the lateral displacement of the slider 2 into the lateral movement of the clamping block 9 on the slide plate 13, thereby clamping the wire. After the drive column 17 moves to the limit position of the clamping groove 14, the slide plate 13 will start to move along the direction of the slider 2 under the drive of the drive column 17, thereby feeding the clamped wire. The spring 11 can provide a reverse force to the slide plate 13 after the drive block 7 is reset, thereby driving the slide plate 13 to reset. At the same time, it can also ensure the sequential relationship that the slide plate 13 will only move after the two clamping blocks 9 stop moving.

[0035] A set of connecting grooves 15 are provided on a set of opposite inner walls of the slide 12, and a connecting block 23 is fixedly provided on a set of opposite side walls of the slide plate 13. The connecting block 23 is located in the connecting groove 15 and slides in contact with the connecting groove 15. The cooperation between the connecting block 23 and the connecting groove 15 restricts the movement direction of the slide plate 13 in the slide 12, ensuring that the slide plate 13 can only slide along the extension direction of the connecting groove 15. During the clamping or loosening process of the clamping block 9, the contact structure between the connecting groove 15 and the connecting block 23 prevents the slide plate 13 from shifting, ensuring that the movement trajectory of the drive column 17 in the clamping groove 14 is stable, thereby making the clamping action of the clamping block 9 accurate and reliable.

[0036] A reset groove 3 is provided on the inner wall of the mounting groove 22. A tension spring 4 is provided in the reset groove 3. One end of the tension spring 4 is connected to the inner wall of the reset groove 3, and the other end is connected to the side wall of the slider 2.

[0037] When the drive block 7 no longer applies force to the slider 2, the elastic tension of the tension spring 4 drives the slider 2 to reset in the mounting groove 22; the connection between the tension spring 4 and the slider 2 enables the slider 2 to accurately return to the initial position, providing a reference for the next clamping action and ensuring the consistency of each clamping operation.

[0038] A stop block 10 is provided through the base 1 located between the drive block 7 and the slider 2. A lifting column 21 is fixedly provided on a set of opposite side walls of the stop block 10. A shrinkage groove 19 is provided on the slider 2 at a position opposite to the stop block 10. The depth of the shrinkage groove 19 is not less than the height of the stop block 10. A lifting groove 20 is fixedly provided on a set of opposite inner walls of the shrinkage groove 19. The extension direction of the lifting groove 20 intersects with the moving direction of the slider 2 but is not perpendicular. The free end of the lifting column 21 is located in the lifting groove 20. When the lifting column 21 moves from the top end to the bottom end along the lifting groove 20, the top surface of the stop block 10 will be flush with the top surface of the base 1.

[0039] When slider 2 moves under the action of drive block 7, lifting column 21 slides along the inclined direction of lifting groove 20, driving stop block 10 to rise; when lifting column 21 moves to the bottom of lifting groove 20, the depth of shrink groove 19 ensures that stop block 10 can be fully retracted. The inclined direction of lifting groove 20 matches the moving direction of slider 2, and the lifting and lowering of stop block 10 can be controlled according to the movement of slider 2. When slider 2 slides, stop block 10 will move into shrink groove 19, and its top surface will be flush with the top surface of base 1. The wire can pass through the terminal 24 inserted into solder pad 8 from above stop block 10; when slider 2 resets, lifting column 21 slides in the opposite direction, and stop block 10 will extend out from shrink groove 19, providing initial positioning for wire insertion.

[0040] Limiting grooves 5 are formed on the inner walls of the two mounting grooves 22 perpendicular to the reset groove 3. Limiting blocks 6 are fixedly set on a set of opposite side walls of the slider 2. The limiting blocks 6 are located in the limiting grooves 5 and slide against the inner wall of the limiting grooves 5.

[0041] The cooperation between the limiting block 6 and the limiting groove 5 restricts the movement direction of the slider 2 in the mounting groove 22, ensuring that the slider 2 can only move in a straight line along the direction of the limiting groove 5; this ensures the stable cooperation between the drive block 7 and the inclined surface of the drive groove 16, so that the thrust of the drive block 7 can be accurately transmitted to the slider 2, and avoids the slider 2 shaking, which would cause the clamping block 9 to fail.

[0042] There are two clamping grooves 14 in each group. The two clamping grooves 14 in the same group are symmetrically distributed along the center line of the slide 13. The extension line of the clamping groove 14 intersects the moving direction of the slide 13 but is not perpendicular to it.

[0043] The symmetrically distributed clamping grooves 14 ensure that the clamping blocks 9 are subjected to balanced forces during movement, preventing the clamping blocks 9 from tilting due to unilateral force. The tilt angle design of the clamping grooves 14 converts the linear motion of the slide plate 13 into the lateral clamping force of the clamping blocks 9, realizing the clamping action through the geometric transmission principle. Furthermore, the single-sided double-groove design allows the two clamping blocks 9 to remain relatively parallel during movement.

[0044] The working process of this embodiment is as follows: When in use, the wire to be welded is first placed in the wire groove 25, and the end of the wire is placed against the stop block 10. The terminal 24 is transferred to the welding seat 8 one by one through the mold. Then the welding head moves down. When the welding head moves down, the top of the drive block 7 is also pressured, so that the drive block 7 is forced to move into the drive groove 16. When the drive block 7 moves, it will push the slider 2 to move by cooperating with the inclined surface of the drive groove 16. When the slider 2 moves, the tension spring 4 will be stretched. At the same time, the lifting column 21 will move from the top end to the bottom end of the lifting groove 20. At the same time, the slot 18 will also drive the drive column 17 to move along the clamping groove 14. When the lifting column 21 moves to the bottom end of the lifting groove 20, the two clamping blocks 9 will also clamp the wire in the wire groove 25.

[0045] Then, as the slider 2 continues to move, the slot 18 will continue to move with the drive column 17. Since the two clamps 9 can no longer move relative to each other at this time, the slide plate 13 will move in the slide groove 12 under the drive of the drive column 17. When moving, it will compress the spring 11. As the slide plate 13 moves, the end of the wire will be inserted into the wiring hole of the terminal 24 on the soldering base 8. Finally, the welding head and the soldering base 8 cooperate to complete the welding of the terminal 24 and the wire.

[0046] After welding is completed, the welding head moves up and the pressure on the top of the drive block 7 disappears. At this time, the tension spring 4 will pull the slider 2 to reset. The lifting groove 20 and the lifting column 21 cooperate to push the stop block 10 to move up and reset. At the same time, the spring 11 will also push the slide plate 13 to reset. Furthermore, the drive column 17 will separate along the clamping groove 14 under the action of the slot 18 on the slider 2, making it easier to take out the welded wire and prepare for welding again.

[0047] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. An ultrasonic beam welding jig comprising a base (1), characterised in that: The base (1) has a mounting groove (22) at its bottom. A slider (2) is provided in the mounting groove (22). The slider (2) has a slot (18) and a drive groove (16). The base (1) has a sliding groove (12) at its top. The sliding groove (12) is connected to the mounting groove (22). A slide plate (13) and a spring (11) are slidably arranged in the sliding groove (12). One end of the spring (11) is connected to the inner wall of the sliding groove (12), and the other end is connected to the slide plate (13). Two sets of clamping grooves (14) are also provided through the slide (13). A clamping block (9) is slidably provided on the slide (13). A driving column (17) is fixedly provided at the bottom of the clamping block (9). The free end of the driving column (17) passes through the clamping groove (14) and is located in the slot (18). A driving block (7) is also provided through the base (1) on one side of the slide (12). One end of the driving block (7) is located in the driving groove (16), and the bottom surfaces of the driving block (7) and the driving groove (16) are parallel inclined surfaces.

2. An ultrasonic beam welding fixture as defined in claim 1, wherein: A connecting groove (15) is provided on a set of opposite inner walls of the slide (12), and a connecting block (23) is fixedly provided on a set of opposite side walls of the slide plate (13). The connecting block (23) is located in the connecting groove (15) and slides in contact with the connecting groove (15).

3. The ultrasonic wire harness welding fixture according to claim 1, characterized in that: The inner wall of the mounting groove (22) is provided with a reset groove (3), and a tension spring (4) is provided in the reset groove (3). One end of the tension spring (4) is connected to the inner wall of the reset groove (3), and the other end is connected to the side wall of the slider (2).

4. The ultrasonic wire harness welding fixture according to claim 1, characterized in that: A stop block (10) is provided through the base (1) located between the drive block (7) and the slider (2). A lifting column (21) is fixedly provided on a set of opposite side walls of the stop block (10). A shrinkage groove (19) is provided on the slider (2) at a position opposite to the stop block (10). A lifting groove (20) is fixedly provided on a set of opposite inner walls of the shrinkage groove (19). The free end of the lifting column (21) is located in the lifting groove (20).

5. An ultrasonic wire harness welding fixture according to claim 3, characterized in that: Limiting grooves (5) are formed on the inner walls of the two mounting grooves (22) perpendicular to the reset groove (3). Limiting blocks (6) are fixedly provided on a set of opposite side walls of the slider (2). The limiting blocks (6) are located in the limiting grooves (5) and slide against the inner wall of the limiting grooves (5).

6. An ultrasonic wire harness welding fixture according to claim 1, characterized in that: The number of clamping grooves (14) in each group is two. The two clamping grooves (14) in the same group are symmetrically distributed along the center line of the slide (13). The extension line of the clamping groove (14) intersects the moving direction of the slide (13) but is not perpendicular to it.

7. An ultrasonic wire harness welding fixture according to claim 4, characterized in that: The depth of the shrinkage groove (19) is not less than the height of the stop (10). The extension direction of the lifting groove (20) intersects with and is not perpendicular to the moving direction of the slider (2). When the lifting column (21) moves from the top of the lifting groove (20) to the bottom, the top surface of the stop (10) will be flush with the top surface of the base (1).

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