Multi-point double-sided projection welding tooling

Abstract

The utility model relates to welding tool technical field, and disclose a multi -point double -sided convex welding tool, including bottom plate, the middle part of bottom plate is provided with the blanking hole, the blanking hole is set up in the upper and lower through -going, the upper surface of bottom plate is equipped with drive mechanism, one end of drive mechanism is equipped with the material removal plate, the material removal plate is slidably provided with the core rod on the direction, the core rod is used to install the shock absorbing holder, one end of core rod is fixed on the mounting panel, the utility model provides a multi -point double -sided convex welding tool, through the setting of core rod, can install shock absorbing holder on the core rod before welding, cooperate the positioning mechanism of setting in the opposite side of core rod, and the positioning mechanism can position the installation position of core rod, thereby ensuring that the position of each welding is same, improves the consistency of part, through setting up the abutting mechanism of one side of bottom plate, when welding, shock absorbing holder can be stably pressed on the electrode holder.

Description

Technical Field

[0001] This utility model relates to the field of welding tooling technology, specifically to a multi-point double-sided convex welding tooling. Background Technology

[0002] As an important connecting component in key assemblies such as automobile chassis and suspension system, the welding quality of shock absorber brackets directly affects the safety and reliability of the entire vehicle. Currently, these parts are usually connected to the corresponding brackets or bases using resistance projection welding.

[0003] In existing welding production, the following technical challenges are common: First, the positioning of the workpiece (vibration damping bracket) mainly relies on simple fixtures or manual alignment, making it difficult to ensure the consistency of the workpiece's position each time. Due to insufficient positioning accuracy, the position of the weld point may shift, affecting not only the welding strength but also the consistency of the parts, causing difficulties for subsequent assembly. Second, if the contact between the workpiece and the electrode is insufficient or there is a gap during welding, uneven current density can easily lead to defects such as spatter, incomplete welding, or weak weld points, seriously affecting the stability of welding quality. Finally, most existing tooling lacks an efficient unloading mechanism, requiring operators to manually pry or knock the workpiece after welding, which increases labor intensity and reduces production efficiency. Therefore, a device is needed to solve these problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a multi-point double-sided convex welding fixture, which solves the problems of low efficiency and insufficient stability in the welding process of shock-absorbing brackets.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a multi-point double-sided convex welding fixture, including a base plate, a feeding port in the middle of the base plate, the feeding port being vertically continuous, a driving mechanism on the upper surface of the base plate, a stripping plate at one end of the driving mechanism, a mandrel being guided and slidably mounted on the stripping plate, the mandrel being used to install a shock-absorbing bracket, one end of the mandrel being fixed to a mounting plate, and the stripping plate being located on the side of the mounting plate near the mandrel; Both the drive mechanism and the mounting plate are adjustable in position in the second direction. A positioning mechanism is also provided on the other side of the upper surface of the base plate. The positioning mechanism is arranged in a corresponding manner to the mandrel along the first direction. The positioning mechanism positions the shock absorber on the other side of the shock absorber. The base plate is provided with a clamping mechanism and an electrode seat at intervals along the second direction. The clamping mechanism is arranged perpendicularly to the mandrel and is used to push the shock absorber support to the electrode for welding. The electrode seat has a welding electrode at its bottom for welding the shock absorber support.

[0006] Optionally, the driving mechanism includes a stripping cylinder push plate and a guide rod. An adjustment mechanism is provided on the upper surface of the base plate. The stripping cylinder is mounted on the surface of the adjustment mechanism. The push plate is fixedly connected to the output end of the stripping cylinder. The guide rod is fixedly connected to one side of the push plate. The stripping plate is fixed to the end of the guide rod away from the push plate.

[0007] Optionally, the adjustment mechanism includes an adjustment seat, a hydraulic rod, and an adjustment plate. The adjustment seat is fixedly connected to the upper surface of the base plate. The hydraulic rod is located on one side of the adjustment seat with its output end facing the discharge cylinder. The adjustment plate is fixedly connected to the output end of the hydraulic rod. The discharge cylinder is fixedly connected to one side of the adjustment plate, so that the hydraulic rod pushes the adjustment plate to adjust the position of the discharge cylinder.

[0008] Optionally, the upper surface of the base plate is provided with a guide rail along the second direction, and the unloading cylinder is slidably connected to the upper surface of the guide rail to improve the smoothness of the movement of the unloading cylinder.

[0009] Optionally, the positioning mechanism includes a side cylinder and a positioning plate. The side cylinder is fixedly connected to the upper surface of the base plate, and the positioning plate is fixedly connected to the output end of the side cylinder. The positioning plate is in contact with one side of the shock absorber bracket so that the shock absorber bracket is aligned with the electrode seat.

[0010] Optionally, the clamping mechanism includes a clamping cylinder, a clamping plate, and a pressure block. The clamping cylinder is fixedly connected to the upper surface of the base plate, the clamping plate is fixedly connected to the output end of the clamping cylinder, and the pressure block is fixedly connected to the end of the clamping plate near the mandrel. One side of the pressure block is an arc-shaped groove so that the pressure block fits against the shock-absorbing bracket.

[0011] Optionally, the bottom of the electrode holder is provided with a stepped platform, which is used to increase the contact area between the electrode holder and the welding electrode.

[0012] Optionally, there are two electrode holders, which are respectively located on the upper and lower sides of the mandrel to weld to both sides of the shock-absorbing support. One side of the upper electrode holder is connected to an adjustable support to adjust the height of the electrode holder.

[0013] Optionally, a clearance groove is provided on one side of the stripping plate, and an anti-rotation plate is installed inside the clearance groove to prevent the shock-absorbing support from rotating.

[0014] This utility model provides a multi-point double-sided projection welding fixture, which has the following beneficial effects: This utility model provides a multi-point double-sided convex welding fixture. By setting a mandrel, a shock-absorbing support can be installed on the mandrel before welding. A positioning mechanism located on the opposite side of the mandrel positions the mandrel, ensuring consistent welding positions and improving part uniformity. A clamping mechanism on one side of the base plate stably presses the shock-absorbing support onto the electrode seat during welding, ensuring sufficient contact area between the shock-absorbing support and the electrode seat, thus improving welding stability and strength. Through the coordinated arrangement of the mandrel and drive mechanism, after welding, the drive mechanism can move relative to the mandrel, pushing down the shock-absorbing support installed on the outside of the mandrel and allowing it to be discharged from the bottom discharge port, facilitating continuous operation. By changing the connection method between the electrode seat and the welding electrode, the contact area between them is increased, thereby increasing the conductive area. Even with the addition of gaskets, the conductive area is fully guaranteed. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the other side of the stripping plate of this utility model; Figure 3 This is a schematic diagram of the structure of the shock-absorbing support of this utility model; Figure 4 This is a schematic diagram of the adjustment mechanism of this utility model; Figure 5 This is a structural schematic diagram of the shock-absorbing support of this utility model before welding, viewed from the front. Figure 6 This is a front sectional view of the structure of the shock-absorbing support during the welding process of this utility model; Figure 7 This is a side sectional view of the structure of the shock-absorbing support during the welding process of this utility model; Figure 8 This is a side sectional view of the shock-absorbing support of this utility model after welding.

[0016] In the diagram: 1. Base plate; 2. Feed port; 3. Core rod; 4. Electrode holder; 5. Welding electrode; 6. Unloading cylinder; 7. Unloading plate; 8. Mounting plate; 9. Push plate; 10. Guide rod; 11. Adjusting seat; 12. Hydraulic rod; 13. Adjusting plate; 14. Guide rail; 15. Side cylinder; 16. Positioning plate; 17. Clamping cylinder; 18. Clamping plate; 19. Pressure block; 20. Clearance groove; 21. Anti-rotation plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] Please see Figures 1 to 8 The present invention provides a technical solution: a multi-point double-sided convex welding fixture, including a base plate 1, a feeding port 2 in the middle of the base plate 1, the feeding port 2 being vertically through, a driving mechanism on the upper surface of the base plate 1, a stripping plate 7 at one end of the driving mechanism, a mandrel 3 being guided and slidably mounted on the stripping plate 7, the mandrel 3 being used to install a shock-absorbing support, one end of the mandrel 3 being fixed on a mounting plate 8, and the stripping plate 7 being located on the side of the mounting plate 8 near the mandrel 3.

[0019] Both the drive mechanism and the mounting plate 8 can be adjusted in position in the second direction.

[0020] A positioning mechanism is also provided on the other side of the upper surface of the base plate 1. The positioning mechanism is arranged in a corresponding manner to the core rod 3 along the first direction. The positioning mechanism positions the shock absorber bracket on the other side of the shock absorber bracket.

[0021] The base plate 1 is provided with a clamping mechanism and an electrode seat 4 at intervals along the second direction. The clamping mechanism is arranged perpendicularly to the core rod 3 and is used to push the shock absorber support to the electrode for welding. The electrode seat 4 is provided with a welding electrode 5 at the bottom for welding the shock absorber support.

[0022] The shock absorber bracket can be fitted onto the mandrel 3 from one end. The mandrel 3 is moved by the drive mechanism, which moves the shock absorber bracket to the side of the electrode seat 4, so that the shock absorber bracket contacts the welding electrode 5, thereby performing the welding operation on the shock absorber bracket. Before welding, the positioning mechanism abuts against the other side of the shock absorber bracket to position the shock absorber bracket. Then, the pressing mechanism pushes the shock absorber bracket to move, so that the shock absorber bracket is tightly connected to the welding electrode 5, ensuring a firm weld. After welding is completed, the drive mechanism moves to push the shock absorber bracket off the mandrel 3. The base plate 1 has a discharge port 2 for the shock absorber bracket to fall. The welded shock absorber bracket can fall directly from the discharge port 2 and be collected. There are two electrode seats 4, which are set one above the other, and the shock absorber bracket is welded from the top and bottom respectively. The upper electrode seat 4 is mounted on a universal joint support, which can move the electrode seat 4 up and down.

[0023] In this embodiment, as a preferred solution, the driving mechanism includes a stripping cylinder 6, a push plate 9, and a guide rod 10. An adjustment mechanism is provided on the upper surface of the base plate 1. The stripping cylinder 6 is mounted on the surface of the adjustment mechanism. The push plate 9 is fixedly connected to the output end of the stripping cylinder 6. The guide rod 10 is fixedly connected to one side of the push plate 9. The stripping plate 7 is fixed to the end of the guide rod 10 away from the push plate 9. The adjustment mechanism includes an adjustment seat 11, a hydraulic rod 12, and an adjustment plate 13. The adjustment seat 11 is fixedly connected to the upper surface of the base plate 1. The hydraulic rod 12 is located on one side of the adjustment seat 11 and... The output end faces the unloading cylinder 6. The adjusting plate 13 is fixedly connected to the output end of the hydraulic rod 12. The unloading cylinder 6 is fixedly connected to one side of the adjusting plate 13 so that the hydraulic rod 12 pushes the adjusting plate 13 to adjust the position of the unloading cylinder 6. The upper surface of the base plate 1 is provided with a guide rail 14 along the second direction. The unloading cylinder 6 is guided and slidably connected to the upper surface of the guide rail 14 to improve the smoothness of the movement of the unloading cylinder 6. During the process of the hydraulic rod 12 actuating the unloading cylinder 6, the unloading cylinder 6 can synchronously drive the mounting plate 8 to move together through the guide rod 10.

[0024] After the stripping cylinder 6 pushes the push plate 9 to move, the push plate 9 drives the stripping plate 7 at one end to move through the guide rod 10. The mandrel 3 is fixed on the mounting plate 8. When the stripping plate 7 moves, it will move relative to the mandrel 3 on the mounting plate 8, thereby pushing down the shock-absorbing bracket sleeved on the outside of the mandrel 3. The adjustment mechanism drives the adjustment plate 13 to move through the internal hydraulic rod 12. The adjustment plate 13 is connected to the stripping cylinder 6. During welding, the adjustment plate 13 moves to one side, so that the mandrel 3 is close to the electrode plate. After welding is completed, the adjustment plate 13 moves in the opposite direction, so that the mandrel 3 is away from the electrode plate, thereby facilitating the separation of the shock-absorbing bracket from the mandrel 3. The stripping cylinder 6 is connected to the guide rail 14. When moving, it will move along the guide rail 14, so that the stripping cylinder 6 moves more smoothly and reduces vibration, further improving the welding accuracy.

[0025] In this embodiment, as a preferred option, the positioning mechanism includes a side cylinder 15 and a positioning plate 16. The side cylinder 15 is fixedly connected to the upper surface of the base plate 1, and the positioning plate 16 is fixedly connected to the output end of the side cylinder 15. The positioning plate 16 is in contact with one side of the shock-absorbing bracket so that the shock-absorbing bracket is aligned with the electrode seat 4. The clamping mechanism includes a clamping cylinder 17, a clamping plate 18, and a pressing block 19. The clamping cylinder 17 is fixedly connected to the upper surface of the base plate 1, the clamping plate 18 is fixedly connected to the output end of the clamping cylinder 17, and the pressing block 19 is fixedly connected to one end of the clamping plate 18 near the core rod 3. One side of the pressing block 19 is an arc-shaped groove so that the pressing block 19 is in contact with the shock-absorbing bracket.

[0026] After the shock absorber bracket is placed on the mandrel 3, the side cylinder 15 drives the positioning plate 16 to move towards the mandrel 3, so that the positioning plate 16 is pushed against the side of the shock absorber bracket, making the shock absorber bracket fit together with the stripper plate 7, thereby positioning the shock absorber bracket and ensuring the consistency of the welding position. The pressing cylinder 17 pushes the pressing plate 18 to move towards the mandrel 3, so that the pressing plate 18 fits against the side of the shock absorber bracket, ensuring the contact area between the shock absorber bracket and the electrode sheet, making the welding more stable. The arc-shaped groove on one side of the pressure block 19 can better connect with the shock absorber bracket.

[0027] In this embodiment, as a preferred option, the bottom of the electrode holder 4 is provided with a stepped platform to increase the contact area between the electrode holder 4 and the welding electrode 5. There are two electrode holders 4, which are respectively provided on the upper and lower sides of the mandrel 3 to weld the two sides of the shock-absorbing support. One side of the upper electrode holder 4 is connected to an adjustable support to adjust the height of the electrode holder 4.

[0028] The ladder platform is set at a right angle, which increases the contact area between the electrode holder 4 and the welding electrode 5. When adjusting the angle of the welding electrode 5 using the shim, the contact area between the electrode holder 4 and the welding electrode 5 can also be ensured, making the welding process more efficient and stable. During welding, the upper electrode holder 4 can be raised through the adjustment support on one side, which makes it convenient to place the shock-absorbing bracket between the upper electrode and the lower electrode. After placement, the upper electrode plate can be moved down to cooperate with the lower electrode plate to weld the shock-absorbing bracket.

[0029] In this embodiment, as a preferred option, a clearance groove 20 is provided on one side of the stripping plate 7, and an anti-rotation plate 21 is installed inside the clearance groove 20 to prevent the shock-absorbing support from rotating.

[0030] The anti-rotation plate 21 installed in the clearance groove 20 can prevent the shock absorber bracket from rotating. During the process of separating the shock absorber bracket from the core rod 3, the relative rotation between the two is reduced, thereby reducing the friction between them.

[0031] In this invention, the working steps of the device are as follows: 1. Place the shock absorber bracket on the mandrel 3. After the bracket is properly fitted, the side cylinder 15 pushes the positioning plate 16 to move. The positioning plate 16 pushes the shock absorber bracket to move towards the stripper plate 7, so that the shock absorber bracket fits against the stripper plate 7 to position the shock absorber bracket. 2. After positioning is completed, the hydraulic rod 12 retracts, moving the adjusting plate 13 and the unloading cylinder 6 towards the electrode plate. After the shock-absorbing support contacts the electrode plate, the pressing cylinder 17 operates to move the pressing plate 18 towards the core rod 3, so that the pressing plate 18 presses against the shock-absorbing support on the outside of the core rod 3, ensuring the stability of the connection between the shock-absorbing support and the welding electrode 5. 3. Then the upper electrode plate moves down and is welded to the shock absorber bracket in conjunction with the lower electrode plate; 4. After welding is completed, the side cylinder 15 and the clamping cylinder 17 retract, retracting the positioning plate 16 and the clamping plate 18. The hydraulic rod 12 extends, separating the shock absorber bracket from the welding electrode 5. Then, the stripping cylinder 6 pushes the push plate 9 to move, causing the stripping plate 7 to push the welded shock absorber bracket off the mandrel 3 and into the discharge port 2. The above operation is then repeated for welding.

[0032] The specific embodiments provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A multi-point double-sided projection welding fixture, characterized in that: Includes a base plate (1), with a discharge port (2) in the middle of the base plate (1), the discharge port (2) being vertically through, a drive mechanism on the upper surface of the base plate (1), a stripping plate (7) at one end of the drive mechanism, a core rod (3) being slidably guided on the stripping plate (7), the core rod (3) being used to install a shock-absorbing bracket, one end of the core rod (3) being fixed on a mounting plate (8), and the stripping plate (7) being located on the side of the mounting plate (8) near the core rod (3); The drive mechanism and the mounting plate (8) can both be adjusted in position in the second direction; A positioning mechanism is also provided on the other side of the upper surface of the base plate (1). The positioning mechanism is arranged in a corresponding manner to the core rod (3) along the first direction. The positioning mechanism positions the shock absorber on the other side of the shock absorber. The base plate (1) is provided with a clamping mechanism and an electrode seat (4) at intervals along the second direction. The clamping mechanism is arranged perpendicularly to the core rod (3) to push the shock absorber support to the electrode for welding. The electrode seat (4) has a welding electrode (5) at its bottom for welding the shock absorber support.

2. The multi-point double-sided projection welding fixture according to claim 1, characterized in that: The driving mechanism includes a stripping cylinder (6), a push plate (9), and a guide rod (10). An adjustment mechanism is provided on the upper surface of the base plate (1). The stripping cylinder (6) is installed on the surface of the adjustment mechanism. The push plate (9) is fixedly connected to the output end of the stripping cylinder (6). The guide rod (10) is fixedly connected to one side of the push plate (9). The stripping plate (7) is fixed to the end of the guide rod (10) away from the push plate (9).

3. The multi-point double-sided projection welding fixture according to claim 2, characterized in that: The adjustment mechanism includes an adjustment seat (11), a hydraulic rod (12), and an adjustment plate (13). The adjustment seat (11) is fixedly connected to the upper surface of the base plate (1). The hydraulic rod (12) is located on one side of the adjustment seat (11) and its output end faces the unloading cylinder (6). The adjustment plate (13) is fixedly connected to the output end of the hydraulic rod (12). The unloading cylinder (6) is fixedly connected to one side of the adjustment plate (13) so that the hydraulic rod (12) pushes the adjustment plate (13) to adjust the position of the unloading cylinder (6).

4. The multi-point double-sided projection welding fixture according to claim 3, characterized in that: The upper surface of the base plate (1) is provided with a guide rail (14) along the second direction. The unloading cylinder (6) is guided and slidably connected to the upper surface of the guide rail (14) to improve the smoothness of the movement of the unloading cylinder (6).

5. The multi-point double-sided projection welding fixture according to any one of claims 1-4, characterized in that: The positioning mechanism includes a side cylinder (15) and a positioning plate (16). The side cylinder (15) is fixedly connected to the upper surface of the base plate (1), and the positioning plate (16) is fixedly connected to the output end of the side cylinder (15). The positioning plate (16) is attached to one side of the shock absorber bracket so that the shock absorber bracket is aligned with the electrode seat (4).

6. The multi-point double-sided projection welding fixture according to claim 5, characterized in that: The clamping mechanism includes a clamping cylinder (17), a clamping plate (18), and a pressure block (19). The clamping cylinder (17) is fixedly connected to the upper surface of the base plate (1). The clamping plate (18) is fixedly connected to the output end of the clamping cylinder (17). The pressure block (19) is fixedly connected to one end of the clamping plate (18) near the core rod (3). One side of the pressure block (19) is an arc-shaped groove so that the pressure block (19) fits against the shock-absorbing bracket.

7. The multi-point double-sided projection welding fixture according to any one of claims 1-4, characterized in that: The bottom of the electrode holder (4) is provided with a stepped platform, which is used to increase the contact area between the electrode holder (4) and the welding electrode (5).

8. The multi-point double-sided projection welding fixture according to claim 7, characterized in that: There are two electrode seats (4), which are respectively located on the upper and lower sides of the core rod (3) to weld the two sides of the shock-absorbing support. One side of the upper electrode seat (4) is connected to an adjustable support to adjust the height of the electrode seat (4).

9. The multi-point double-sided projection welding fixture according to any one of claims 2-4, characterized in that: The stripping plate (7) has a clearance groove (20) on one side, and an anti-rotation plate (21) is installed inside the clearance groove (20) to prevent the shock-absorbing support from rotating.

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