Welding fixture and welding apparatus

Abstract

The application belongs to the technical field of clamps, and discloses a welding clamp and welding equipment. The welding clamp comprises a clamp body, a supporting seat, a pressing jaw and a clamping assembly. The clamp body is provided with a clamping station. The supporting seat is fixedly connected to the clamp body and is provided with a clamping portion. The clamping assembly comprises a movable buckle, a transmission shaft and a first elastic fastener. The movable buckle is pivotally connected to the supporting seat through the transmission shaft and is drivingly connected to the pressing jaw through the transmission shaft. The movable buckle can be clamped with the clamping portion. The first elastic fastener is arranged between the supporting seat and the pressing jaw. When the movable buckle is clamped with the clamping portion, the movable buckle can drive the transmission shaft and the pressing jaw to keep a relative stationary state with the supporting seat. Meanwhile, the first elastic fastener can drive the pressing jaw to stop at a pressing position. At the pressing position, the pressing jaw can press the welding piece on the clamping station. The above arrangement enables the pressing jaw to be limited by the first elastic fastener and the transmission shaft at the same time, thereby improving the pressing effect and reliability of the pressing jaw on the welding piece.

Description

Technical Field

[0001] This invention relates to the field of fixtures, and more particularly to a welding fixture and welding equipment. Background Technology

[0002] In industries such as consumer electronics, automotive electronics, and new energy batteries, PCB boards require soldered conductive contact points to achieve circuit connections. Because these conductive contact points are small and have strict requirements regarding their location and quantity, precise and reliable clamps are needed to hold and secure them.

[0003] Currently, in traditional automatic welding machines, welding fixtures often use magnetic clamping. Magnets are placed between the clamping claws and the support base, and clamping is achieved through magnetic attraction. However, in actual use, dust or burrs can adhere to the magnets, increasing the distance between the clamping claws and the support base, reducing the clamping force. In this case, it is impossible to clearly monitor whether the clamping is adequate, leading to ineffective clamping of the conductive contact pieces during clamping or welding, resulting in misalignment.

[0004] Existing related technologies provide a welding fixture, in which the clamping mechanism mainly includes pressure claws and an elastic element. The pressure claws can press the component to be welded onto the fixture body, while the elastic element is connected to the pressure claws and is used to drive the pressure claws to rotate towards the component to be welded. By replacing the magnetic clamping with the elastic element providing elastic preload to the pressure claws, the influence of dust or burrs can be eliminated, increasing the clamping reliability of the welding fixture to a certain extent. However, due to the influence of the durability and stability of the elastic element, the performance of the elastic element may degrade after long-term use, resulting in insufficient preload, thus still failing to meet the long-term clamping stability requirements. Summary of the Invention

[0005] The first objective of this invention is to provide a welding fixture that can effectively clamp the workpiece to be welded during the clamping or welding process, avoid misalignment, improve welding quality, and at the same time have higher durability, stability and reliability.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A welding fixture includes: a fixture body with a clamping station for placing a workpiece to be welded; a support base fixed to the fixture body and having a locking portion thereon; a clamping jaw for clamping the workpiece to be welded onto the clamping station; and a locking assembly including a movable latch, a drive shaft, and a first elastic fastener. The movable latch is pivotally connected to the support base via the drive shaft and is driven to the clamping jaw via the drive shaft. The movable latch can rotate to engage with the locking portion. The first elastic fastener is disposed between the support base and the clamping jaw. When the movable latch engages with the locking portion, the movable latch drives the drive shaft and the clamping jaw to remain relatively stationary on the support base. Simultaneously, the first elastic fastener is configured to drive the clamping jaw to stop in a clamping position. In the clamping position, the clamping jaw clamps the workpiece to be welded onto the clamping station.

[0008] Preferably, the locking assembly further includes a second elastic fastener, the two ends of which are respectively connected to the support base and the movable buckle. The second elastic fastener is configured to drive the movable buckle to stop and lock into the locking portion.

[0009] Preferably, the support base includes a fixed support, a transition shaft, and a movable support. The fixed support is fixedly connected to the fixture body and is provided with the snap-fit ​​part. The movable support is pivotally connected to the fixed support through the transition shaft and pivotally connected to the movable buckle and the pressure claw through the transmission shaft.

[0010] Preferably, the pressure claw has a long strip structure, and one end of the pressure claw is used to press the workpiece to be welded. The adapter shaft passes through the other end of the pressure claw, the fixed support and the movable support. The movable buckle is connected to the middle part of the pressure claw through the transmission shaft.

[0011] Preferably, the fixed support is provided with multiple limiting installation slots at intervals along the same row, and a pressure claw is inserted into each limiting installation slot. The adapter shaft passes through multiple limiting installation slots, pressure claws, fixed support and movable support.

[0012] Preferably, the locking assembly further includes a closing handle, which is fixedly connected to the top of the fixed support, and the closing handle and the movable buckle are spaced apart to form a clearance space for the movable buckle to rotate.

[0013] Preferably, the locking assembly further includes a connector, each end of which is connected to a movable buckle, and each end of the fixed support is provided with a locking part corresponding to the movable buckle.

[0014] Preferably, the fixture body is provided with a plurality of stop blocks at intervals along the circumference of the clamping station, and the plurality of stop blocks together surround the workpiece to be welded and clamp it on the clamping station.

[0015] Preferably, the clamping station is provided with a product positioning pin, which is configured to correspond to the positioning hole on the workpiece to be welded.

[0016] The beneficial effects of the welding fixture provided by this invention are as follows: When the movable latch is engaged with the latching part, the first elastic fastener is in a compressed state. The first elastic fastener can drive the pressure claw to always move in the direction of pressing the workpiece to be welded. At this time, the movable latch can also drive the drive shaft and the pressure claw to maintain a relatively stationary state with respect to the support base. At this time, the pressure claw will be subjected to the dual pressure of the relatively fixed drive shaft and the first elastic fastener in a compressed state, thereby effectively improving the pressing effect and stability of the pressure claw on the workpiece to be welded. When the performance of the first elastic fastener deteriorates due to long-term use, the pressure claw can still be fixed and limited by the drive shaft, so that the workpiece to be welded is still in a compressed state during welding, avoiding deviation, tilting, etc., ensuring welding quality, and improving the reliability, durability and stability of the welding fixture.

[0017] The second objective of this invention is to provide a welding device that can improve the clamping stability of the workpieces during welding, thereby improving reliability and welding quality.

[0018] To achieve this objective, the present invention adopts the following technical solution:

[0019] The welding equipment includes a workbench, a robotic automatic feeder, and the aforementioned welding fixture. The workbench is equipped with a support platform for fixing the welding fixture, and the robotic automatic feeder is used to transfer the workpiece to be welded onto the welding fixture.

[0020] The beneficial effects of the welding equipment provided by this invention are as follows: When the movable latch is engaged with the locking part, the transmission shaft and the pressure claw are relatively statically fixed to the support base. Under constraint, the pressure claw maintains a clamping state on the workpiece to be welded. Furthermore, when the movable latch is engaged with the locking part, the first elastic fastener is compressed, thus applying pressure to the pressure claw towards the workpiece. This ensures the pressure claw consistently applies a clamping force to the workpiece, significantly improving the clamping effect under the dual pressure of the transmission shaft and the first elastic fastener, guaranteeing the installation stability of the workpiece during welding. In addition, even when the elasticity of the first elastic fastener decreases after prolonged use, the transmission shaft can continue to apply clamping force to the pressure claw, ensuring its clamping performance on the workpiece. This keeps the workpiece under clamping pressure during welding, preventing misalignment and tilting, and guaranteeing welding quality. Therefore, the stability and reliability of the welding equipment are effectively improved, ensuring welding quality. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the welding fixture provided in Embodiment 1 of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the workpiece to be welded provided in Embodiment 1 of the present invention;

[0023] Figure 3 This is an assembly drawing of the welding fixture and the workpiece to be welded provided in Embodiment 1 of the present invention;

[0024] Figure 4 This is a schematic diagram of the connection between the support base and the locking assembly provided in Embodiment 1 of the present invention from a first perspective.

[0025] Figure 5 This is a first-view exploded view of the support base and the fastening assembly provided in Embodiment 1 of the present invention after assembly;

[0026] Figure 6 This is a second-view exploded view of the support base and the fastening assembly provided in Embodiment 1 of the present invention after assembly;

[0027] Figure 7 This is a schematic diagram of the connection between the support base and the locking assembly provided in Embodiment 1 of the present invention from a second perspective;

[0028] Figure 8 This is a top view of the connection between the support base and the fastening assembly provided in Embodiment 1 of the present invention;

[0029] Figure 9 It is along Figure 8 Sectional view after AA;

[0030] Figure 10 It is along Figure 8 Sectional view after BB;

[0031] Figure 11 This is a schematic diagram of the fastening assembly provided in Embodiment 1 of the present invention;

[0032] Figure 12 This is a schematic diagram of the welding equipment provided in Embodiment 2 of the present invention.

[0033] In the picture:

[0034] 100. Parts to be welded; 110. PCB board; 1101. Slot; 120. Contact conductive sheet; 200. Workbench; 210. Support platform; 300. Automatic robotic loading machine;

[0035] 1. Fixture body; 101. Clamping station; 11. Square groove; 12. Stop block; 13. Product positioning pin; 14. Guide sleeve;

[0036] 2. Support base; 21. Fixed support; 2101. Snap-fit ​​part; 211. Rib plate; 212. Limiting mounting groove; 213. First assembly through hole; 22. Adapter shaft; 23. Movable support; 231. Clearance notch; 232. First assembly through hole; 24. Snap-fit ​​pressure plate; 25. Shaft stop plate;

[0037] 3. Locking assembly; 31. Movable buckle; 32. Drive shaft; 33. First elastic fastener; 34. Connector; 35. Second elastic fastener; 36. Closing handle; 361. Second assembly through hole;

[0038] 4. Claw; 41. First adapter sleeve hole; 42. Second adapter sleeve hole;

[0039] 5. Grip. Detailed Implementation

[0040] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0041] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this embodiment, the terms "upper," "lower," "right," and "left," 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 the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0044] The technical solution provided by the present invention will be described below with reference to the accompanying drawings and specific embodiments.

[0045] Example 1

[0046] This embodiment provides a welding fixture, including a fixture body 1, a support base 2, a clamping assembly 3, and pressure claws 4. The fixture body 1 has a clamping station 101 for placing a workpiece 100 to be welded. The support base 2 is fixedly mounted on the fixture body 1. The clamping assembly 3 is pivotally connected to the support base 2 and is throttle-connected to the pressure claws 4. Under the driving force of the clamping assembly 3, the pressure claws 4 can rotate in a direction approaching or moving away from the clamping station 101. Furthermore, when the pressure claws 4 are pressed against the surface of the workpiece 100 to be welded within the clamping station 101, the clamping assembly 3 can clamp onto the support base 2, so that the pressure claws 4 can stably clamp the workpiece 100 to be welded, preventing the workpiece 100 from moving and thus ensuring the welding accuracy of the workpiece 100.

[0047] refer to Figure 1As shown, the fixture body 1 is a square plate with a square groove 11 on the plate surface. A clamping station 101 is formed in the square groove 11 to facilitate the placement of the workpiece 100 to be welded with a square cross-section.

[0048] Combination Figure 2 , Figure 3 As shown, in one embodiment of this invention, the workpiece 100 to be welded includes a PCB board 110 and a contact conductive sheet 120. The PCB board 110 is fixedly placed in the clamping station 101. The PCB board 110 is provided with a slot 1101 for limiting the placement of the contact conductive sheet 120. After the contact conductive sheet 120 is limited and placed in the slot 1101, the clamping assembly 3 can press the contact conductive sheet 120 into the slot 1101. A suitable size of clamping claw 31 is selected according to the actual situation to avoid the welding area on the contact conductive sheet 120. Then, a welding device is used to weld the contact conductive sheet 120 onto the PCB board 110 to achieve electrical connection between the contact conductive sheet 120 and the PCB board 110. Preferably, four contact conductive sheets 120 and four slots 1101 are provided.

[0049] Optionally, refer to Figure 3 As shown, multiple stop blocks 12 are spaced apart along the circumferential direction of the clamping station 101 on the fixture body 1. In one embodiment, the horizontal cross-sectional shape of the clamping station 101 is rectangular. One stop block 12 is provided on each of the two sides with shorter side dimensions, two stop blocks 12 are provided on one side with longer side dimensions, and one stop block 12 and a support base 2 are provided on the other side with longer side dimensions. After the PCB board 110 is installed in the clamping station 101, the PCB board 110 can be held between the four stop blocks 12, preventing the PCB board 110 from rotating circumferentially and moving vertically, thereby ensuring the installation stability of the contact conductive sheet 120 on the PCB board 110.

[0050] Specifically, the stop block 12 has a through-hole, and the fixture body 1 has a through-hole. The stop block 12 is connected to the fixture body 1 by a threaded fastener, so that the stop block 12 can be adjusted according to the actual size of the PCB board 110 placed on the clamping station 101. This allows the fixture body 1 to process PCB boards 110 of various sizes, improving the flexibility of the welding fixture and ensuring that the PCB board 110 can be stably placed on the fixture body 1 by the stop block 12.

[0051] Optionally, a product positioning pin 13 is also fixedly inserted inside the square groove 11. The product positioning pin 13 can match the positioning hole 1102 on the PCB board 110 to pre-position the PCB board 110. After the PCB board 110 is installed on the clamping station 101 by the product positioning pin 13, the PCB board 110 is clamped by four stop blocks 12, thereby further improving the clamping accuracy of the PCB board 110. Preferably, a positioning hole 1102 is provided at one of the diagonal positions of the PCB board 110, and two product positioning pins 13 corresponding to the positioning holes 1102 are fixedly provided at the bottom of the clamping station 101. This can limit the PCB board 110 from deflecting after pre-positioning, thereby further enhancing the positioning accuracy of the PCB board 110.

[0052] Optionally, in this embodiment, a handle 5 is also fixedly provided on the side of the clamp body 1 away from the support base 2, so as to facilitate the staff to pick up and move the clamp body 1.

[0053] Specifically, in this embodiment, combined with Figures 4 to 6 As shown, the support base 2 includes a fixed support 21, a transition shaft 22, and a movable support 23. In one embodiment of this invention, the fixed support 21 is fixedly connected to the clamp body 1 by threaded connectors such as screws and bolts, and the fixed support 21 is provided with a locking part 2101 that can engage with the locking assembly 3. Both the fixed support 21 and the movable support 23 are provided with transition holes, and the transition shaft 22 passes through the transition holes provided on both the fixed support 21 and the movable support 23, so that the movable support 23 can be pivotally connected to the fixed support 21, and the movable support 23 is pivotally connected to the locking assembly 3.

[0054] With the above settings, when the welding fixture is used, the locking component 3 can be driven to disengage from the locking part 2101 first, releasing the locking relationship between the locking component 3 and the fixed support 21. Then, the movable support 23 is controlled to rotate around the adapter shaft 22. At this time, the movable support 23 can simultaneously drive the locking component 3 and the pressure claw 4 to rotate in a direction away from the clamping station 101, so that the clamping station 101 is kept in a fully open state, so as to effectively avoid the installation of the workpiece 100 to be welded. This completes the preparation before welding.

[0055] One implementation of this embodiment is as follows, referring to... Figure 6As shown, all four pressure claws 4 are curved elongated structures. One end of each pressure claw 4 is used to press the contact conductive sheet 120 onto the PCB board 110. The other end of each pressure claw 4 has a first adapter sleeve hole 41 corresponding to the adapter holes of the movable support 23 and the fixed support 21, allowing the adapter shaft 22 to pass through the first adapter sleeve hole 41 on all four pressure claws 4, the adapter hole on the fixed support 21, and the adapter hole on the movable support 23 simultaneously. The middle part of each pressure claw 4 is connected to the locking assembly 3. By connecting the locking assembly 3 to the middle part of the pressure claw 4, compared to connecting the locking assembly 3 to the end of the pressure claw 4, the operational difficulty of the locking assembly 3 controlling the lifting or lowering of the pressure claw 4 can be reduced. This facilitates higher control accuracy of the locking assembly 3 over the pressure claw 4 and helps improve the durability of the pressure claw 4 when it is in the open state. Furthermore, because the adapter shaft 22 limits the other end of the pressure claw 4, the pressure claw 4 can maintain its relative position with the fixed support 21 during the lifting or lowering process, resulting in higher connection stability.

[0056] For more specific details, please refer to [link / reference]. Figure 6 The fixed support 21 has five ribs 211 extending upwards from its upper surface, spaced apart along its length. A limiting mounting groove 212 is formed between adjacent ribs 211, meaning the fixed support 21 has four limiting mounting grooves 212, corresponding to the four pressure claws 4 and the four conductive contact pieces 120 to be welded. The limiting mounting grooves 212 ensure that the pressure claws 4 are stably mounted on the fixed support 21, preventing them from wobbling left and right. It is understood that the ribs 211 have the aforementioned adapter holes on their sidewalls, allowing the adapter shaft 22 to be connected to the fixed support 21 by simultaneously passing through the five ribs 211.

[0057] Furthermore, in this embodiment, reference is made to... Figure 7 As shown, the movable support 23 has an inward recess on the side near the adapter shaft 22 to form a clearance notch 231. In this way, when the movable support 23 is flipped relative to the fixed support 21 so that the pressure claw 4 is away from the clamping station 101, the clearance notch 231 can prevent the movable support 23 from hitting the upwardly protruding rib plate 211. At the same time, it can also help the movable support 23 control the pressure claw to flip upward to the specified position, ensuring that the clamping station 101 is in a fully open state, and avoiding the pressure claw 4 from obstructing and interfering with the installation of the contact conductive sheet 120 on the PCB board 110.

[0058] It should be noted that in this embodiment, the support base 2 also includes a snap-fit ​​plate 24 detachably connected to the fixed support 21. The end of the snap-fit ​​plate 24 protrudes outward from the fixed support 21, so that the end of the snap-fit ​​plate 24 forms the aforementioned snap-fit ​​portion 2101. Since the locking assembly 3 frequently engages and disengages from the snap-fit ​​portion 2101, the snap-fit ​​portion 2101 is prone to wear after prolonged use, resulting in a deterioration in the locking effect. By providing a snap-fit ​​plate 24 detachably connected to the fixed support 21, the snap-fit ​​portion 2101 can be easily inspected. A good locking effect can be maintained by repairing or replacing the snap-fit ​​plate 24, while avoiding the need to replace the entire fixed support 21, thereby saving costs and enhancing the durability of the entire welding fixture.

[0059] Optionally, in this embodiment, the support base 2 further includes a shaft baffle 25, which can be fixedly connected to the fixed support 21 by means of threaded connection, snap-fit, etc., which can prevent the adapter shaft 22 from coming out of the fixed support 21 during use, thus reducing the requirements for the hole diameter tolerance and coaxiality tolerance of the adapter shaft 22.

[0060] Specifically, in combination Figures 8 to 10 As shown, the locking assembly 3 includes a movable buckle 31, a drive shaft 32, and a first elastic fastener 33. The movable buckle 31 is pivotally connected to the movable support 23 and is driven to the pressure claw 4 via the drive shaft 32. The movable buckle 31 can rotate to engage with the locking part 2101 on the buckle pressure plate 24.

[0061] In one embodiment, the movable support 23 and the movable buckle 31 are provided with a transition hole for the drive shaft 32 to pass through, and a second transition sleeve hole 42 for the drive shaft 32 to pass through is provided in the middle of the pressure claw 4. The drive shaft 32 can rotatably pass through the second transition sleeve hole 42 and the corresponding transition hole on the movable support 23 and the movable buckle 31, so that the buckle pressure plate 24 can rotate relative to the fixed support 21.

[0062] In addition, the first elastic fastener 33 is disposed between the movable support 23 and the pressure claw 4. In one embodiment of this invention, the top of the movable support 23 is provided with four first assembly through holes 232 from top to bottom, corresponding to the four pressure claws 4. Each of the four first assembly through holes 232 is provided with a first elastic fastener 33. The first elastic fastener 33 is preferably an elastic pin, so that when the movable buckle 31 rotates to engage with the buckle plate 24, the first elastic fastener 33 can press the pressure claw 4 onto the clamping station 101.

[0063] In the above configuration, when the movable latch 31 is engaged with the latching part 2101, the first elastic fastener 33 is compressed, causing the first elastic fastener 33 to drive the pressure claw 4 to always move in the direction of pressing the contact conductive sheet 120, thereby restricting the longitudinal movement of the pressure claw 4. At this time, since the movable latch 31 and the fixed support 21 are in a relatively stationary state, and the transmission shaft 32 passes through the movable latch 31, the movable support 23, and the pressure claw 4, the movable support 23, the pressure claw 4, and the transmission shaft 32 are also constrained accordingly. At this time, the movable support 23, the pressure claw 4, and the transmission shaft 32 all maintain a relatively stationary relationship with the fixed support 21. That is to say, when the movable latch 31 is engaged with the latching part 2101, the pressure claw 4 is simultaneously subjected to the dual pressure of the relatively fixed transmission shaft 32 and the compressed first elastic fastener 33. On this basis, the pressing effect of the pressure claw 4 on the contact conductive sheet 120 is significantly improved.

[0064] Furthermore, it is understandable that when the elastic performance of the first elastic fastener 33 weakens, resulting in a reduction in the force exerted on the pressure claw 4, the transmission shaft 32 can still maintain the fixing effect on the pressure claw 4, ensuring that the contact conductive sheet 120 remains in a compressed state during welding, avoiding misalignment, tilting, and other conditions, and guaranteeing welding quality. Therefore, under the dual protection of the first elastic fastener 33 and the adapter shaft 32, the reliability of the pressure claw 4 on the contact conductive sheet 120 can be ensured, thereby guaranteeing welding quality and improving the reliability, durability, and stability of the welding fixture.

[0065] Further, refer to Figure 11 As shown, in this embodiment, the locking assembly 3 also includes a rod-shaped connector 34. The length direction of the connector 34 is parallel to the length direction of the movable support 21, and a movable buckle 31 is connected to each end of the connector 34. Correspondingly, a buckle pressure plate 24 corresponding to the movable buckle 31 is provided at each end of the fixed support 21, thereby further improving the locking stability between the locking assembly 3 and the support 2.

[0066] For example, through the aforementioned locking assembly 3 and support base 2, when the welding fixture needs to release the engagement between the movable buckle 31 and the fixed support 21 during use, the operator first operates the connector 34 to drive the movable buckle 31 around the drive shaft 32 and in a direction away from the clamping station 101. At this time, the two movable buckles 31 disengage from the engaging part 2101, releasing the engagement relationship with the engaging part 2101. Then, the operator continues to operate the movable support 23 to rotate relative to the fixed support 21 with the adapter shaft 22 as the rotation center. At this time, the part of the movable support 23 connected to the drive shaft 32 can simultaneously rotate the drive shaft 32, the movable buckle 31, the connector 34, and the pressure claw 4 in a direction away from the clamping station 101, thereby putting the clamping station 101 in a fully open state.

[0067] When the conductive contact sheet 120 is placed on the PCB board 110, and the pressure claw 4 is required to press the conductive contact sheet 120 onto the PCB board 110, the operator again operates the movable support 23 to rotate relative to the fixed support 21 with the adapter shaft 22 as the rotation center. At this time, the movable support 23 can simultaneously rotate along the direction close to the clamping station 101, along with the drive shaft 32, the movable buckle 31, the connector 34, and the pressure claw 4, until one end of the pressure claw 4 is attached to the conductive contact sheet 120. At this time, the movable support 23 can continue to rotate along the direction close to the clamping station 101, and at the same time, the first elastic fastener 33 can be compressed, so that the pressure claw 4 can be in a pressed state, until the movable buckle 31 moves to the position of engaging with the locking part 2101, thereby completing the pressing.

[0068] Optionally, in this embodiment, the locking assembly 3 further includes a second elastic fastener 35. The second elastic fastener 35 is a compression spring, and two second elastic fasteners 35 are provided, each clamped between the corresponding movable buckle 31 and the movable support 23. The function of the second elastic fastener 35 is that when the movable buckle 31 is engaged with the locking part 2101, the second elastic fastener 35 still has an elastic preload, so that the movable buckle 31 always has a locking motion state on the locking part 2101, thereby ensuring the connection between the movable buckle 31 and the fixed support 21 is firm and preventing the movable buckle 31 from loosening.

[0069] Optionally, in this embodiment, reference is made to... Figure 7As shown, the locking assembly 3 also includes a closing handle 36, which is fixedly connected to the top of the movable support. A clearance space is formed between the closing handle 36 and the movable latch 31 to allow for rotation of the movable latch 31. The operator can simultaneously pinch the closing handle 36 and the connecting rod 34, using the closing handle 36 as a force support point to apply greater stability force during the rotation of the connecting rod 34. In this way, the operator can more easily control the movement of the connecting rod 34, thus more conveniently detaching the first latch plate 31 from the latching part 2101, effectively reducing hand strain during operation and improving work efficiency.

[0070] Furthermore, a second assembly through hole 361 is provided on the closing handle 36. The first elastic fastener 33 can pass through the second assembly through hole 361 and the first assembly through hole 213 in sequence to abut against the top surface of the pressure claw 4. Through the action of the first assembly through hole 213 and the second assembly through hole 361, it can be ensured that the first elastic fastener 34 can be stably assembled on the support base 2.

[0071] Example 2

[0072] This embodiment provides a welding device, see reference. Figure 12 As shown, the welding equipment includes a workbench 200, a robotic automatic feeder 300, and a welding fixture according to one of the above embodiments.

[0073] Specifically, in this embodiment, reference is made to... Figure 3 As shown, the workbench 200 is equipped with a support platform 210 for fixing the welding fixture. Guide posts (not shown) protrude from the support platform 210 to match the guide sleeves 14 corresponding to those on the fixture body 1. Each of the four corners of the fixture body 1 has a guide sleeve 14, and correspondingly, four guide posts are provided on the support platform 210. When installing the welding fixture, the guide sleeves 14 can be fitted onto the guide posts to achieve precise installation of the welding fixture, thereby ensuring welding quality.

[0074] Furthermore, the guide post includes a first column and a second column, and the guide sleeve 14 includes a first guide sleeve and a second guide sleeve. The first column and the second column have different cross-sectional areas, as do the first guide sleeve and the second guide sleeve. The first column and the first guide sleeve have the same cross-sectional area, and the second column and the second guide sleeve have the same cross-sectional area. This change in cross-sectional area achieves the error-proof function of the clamp body 1. In one embodiment, the clamp body 1 has a first guide sleeve at each end on one side and a second guide sleeve at each end on the opposite side. The distribution of the first column and the second column on the support platform 210 is similar, thus ensuring the accuracy of the clamp body 1's installation position.

[0075] Specifically, in this embodiment, the robotic automatic feeder 300 is installed on the worktable 200. After the welding fixture is placed on the support platform 210 and fixed, the robotic automatic feeder 300 can transfer the part to be welded (specifically the PCB board 110 in this embodiment) to the clamping station 101 of the welding fixture. After the contact conductive sheet 120 is welded onto the PCB board 110, the robotic automatic feeder 300 then transfers the PCB board 110 to the subsequent operation station for processing.

[0076] The following will describe in detail how to use this welding equipment to weld the conductive contact piece 120 onto the PCB board 110:

[0077] (1) Welding preparation: First, the worker pinches the closing handle 36 and the connecting rod 34, the second elastic fastener 35 is compressed, and at the same time the movable buckle 31 is disengaged from the buckle plate 24, driving the movable support 23 to rotate around the adapter shaft 22. At the same time, the movable support 23, along with the transmission shaft 32 and the pressure claw 4, flips open from the limiting mounting groove 212 of the fixed support 21, so that the pressure claw 4 flips away from the clamp body 1, so that the pressure claw 4 is in a fully open state.

[0078] (2) Product clamping: The fixture body 1 is positioned and installed on the support platform 210 by the guiding action of the guide sleeve 14 and the guide column; then, the PCB board 110 is precisely positioned on the clamping station 101 by the action of the product positioning pin 13 and the stop block 12.

[0079] (3) Feeding of contact conductive sheet 120: The contact conductive sheet 120 is installed in the slot 1101 of PCB board 110 by the robotic automatic feeder 300 for positioning.

[0080] (4) Pressing the conductive contact sheet 120: The operator operates the closing handle 36, rotating the closing handle 36 around the adapter shaft 22 in a direction close to the clamping station 101. At the same time, the closing handle 36 drives the locking assembly 3 to rotate in a direction close to the clamping station 101 until one end of the pressure claw 4 is attached to the surface of the conductive contact sheet 120. At this time, the closing handle 36 is pushed further, and the first elastic fastener 33 above the pressure claw 4 is gradually compressed, so that the pressure claw 4 is kept in a pressed state until the movable buckle 31 is re-engaged to the locking part 2101. At this time, the movable buckle 31 and the locking part 2101 achieve mechanical locking, thereby completing the pressing of the conductive contact sheet 120.

[0081] (5) Welding of contact conductive sheet 120: Under the pressure state, use welding equipment to weld the contact conductive sheet 120 onto the PCB board 110.

[0082] (6) Welding is complete. Repeat step (1).

[0083] During the welding process, the movable latch 31 securely engages with the latching part 2101, achieving relative fixation between the drive shaft 32 and the pressure claw 4 and the fixed support 21. Since the drive shaft 32 is stationary relative to the fixed support 21, the pressure claw 4 connected to the drive shaft 32 is also constrained in the vertical direction, ensuring it remains in a compressed state. Simultaneously, the first elastic fastener 33 is compressed and continues to apply downward pressure to the pressure claw 4, further enhancing its clamping effect on the contact conductive sheet 120. Even if the elasticity of the first elastic fastener 33 decreases after prolonged use, the drive shaft 32 continues to apply clamping force to the pressure claw 4, ensuring it always clamps the contact conductive sheet 120, keeping it compressed during welding and preventing misalignment or tilting. Therefore, using the aforementioned welding fixture effectively improves the stability and reliability of the welding equipment while ensuring welding quality.

[0084] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0085] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A welding fixture, characterized by, The utility model relates to a clamp body (1) is provided with the clamping station (101) for placing the piece (100) to be welded on the clamp body (1), a support seat (2) is fixedly connected on the clamp body (1), and the clamping part (2101) is arranged on the support seat (2), a pressure jaw (4) is used for pressing the piece (100) to be welded on the clamping station (101), a clamping assembly (3) includes movable buckle (31), transmission shaft (32) and first elastic fastener (33), movable buckle (31) is pivotally coupled on the support seat (2) through transmission shaft (32), and is drivenly connected on the pressure jaw (4) through transmission shaft (32), and movable buckle (31) can be rotated to the clamping part (2101) clamping, first elastic fastener (33) is arranged between the support seat (2) and the pressure jaw (4), when movable buckle (31) is clamped in the clamping part (2101), movable buckle (31) can drive transmission shaft (32) and the pressure jaw (4) and the support seat (2) keep relative static state, and first elastic fastener (33) is configured as the pressure jaw (4) is driven to stop in the position of pressing, in the position of pressing, the pressure jaw (4) can press the piece (100) to be welded on the clamping station (101), the support seat (2) includes fixed support (21), adapter shaft (22) and movable support (23), fixed support (21) is fixedly connected on the clamp body (1), and is provided with the clamping part (2101), movable support (23) is pivotally coupled on the fixed support (21) through the adapter shaft (22), and is pivotally coupled on movable buckle (31) and the pressure jaw (4) through transmission shaft (32), the pressure jaw (4) is long strip structure, and one end of the pressure jaw (4) is used for pressing the piece (100) to be welded, the adapter shaft (22) is simultaneously arranged in the other end of the pressure jaw (4), the fixed support (21) and the movable support (23), and movable buckle (31) is drivenly connected on the middle part of the pressure jaw (4) through transmission shaft (32), the clamping assembly (3) further includes second elastic fastener (35), two ends of second elastic fastener (35) are connected on the support seat (2) and movable buckle (31) respectively, and second elastic fastener (35) is configured as movable buckle (31) is driven to stop and clamps in the clamping part (2101), the fixed support (21) is provided with a plurality of limiting installation grooves (212) along the same row spacing, and one pressure jaw (4) is limitedly inserted in each limiting installation groove (212), and the adapter shaft (22) is simultaneously arranged in a plurality of limiting installation grooves (212), the pressure jaw (4), the fixed support (21) and the movable support (23). ​ ​ ​ ​ ​ ​ ​ 2. The welding fixture of claim 1, wherein, ​ 3. The welding fixture of claim 1, wherein, ​ 4. The welding fixture of claim 1, wherein, The clamping assembly (3) further comprises a closing handle (36) fixedly connected to the top of the fixed support (21), and the closing handle (36) and the movable buckle (31) are spaced apart to form a space for the rotation of the movable buckle (31).

5. The welding fixture of claim 1, wherein, The clamping assembly (3) further comprises a connecting piece (34), both ends of the connecting piece (34) are connected with one movable buckle (31), and both ends of the fixed support (21) are provided with one clamping part (2101) corresponding to the movable buckle (31).

6. The welding fixture of claim 1, wherein, A plurality of stop blocks (12) are further arranged on the clamp body (1) along the circumference of the clamping station (101), and the plurality of stop blocks (12) are collectively enclosed to clamp the to-be-welded piece (100) on the clamping station (101).

7. The welding fixture of claim 1, wherein, A product positioning pin (13) is arranged on the clamping station (101), and the product positioning pin (13) is arranged corresponding to the positioning hole on the to-be-welded piece (100).

8. Welding apparatus, characterized in that The welding clamp comprises a workbench (200), a mechanical hand automatic feeding machine (300), and the welding clamp of any one of claims 1-7, a supporting platform (210) for fixing the welding clamp is arranged on the workbench (200), and the mechanical hand automatic feeding machine (300) is used to transfer the to-be-welded piece (100) to the welding clamp.

Images