A projection welding mechanism with a two-stage positioning function

Abstract

The utility model provides a kind of projection welding mechanism with two-stage positioning function, including base, projection welding lower joint seat, the top of the base is fixedly connected with projection welding lower joint seat, the both sides of the projection welding lower joint seat are fixedly connected with joint, the end surface of the joint is fixedly connected with wing plate.The utility model has the advantages that when the output end of second cylinder retreats, positioning seat cooperates first positioning head to carry out initial positioning to the workpiece to be welded, when the output end of third cylinder ejects, second positioning head cooperates first positioning head to clamp and position workpiece, finally, the output end of first cylinder ejects on the front of workpiece, positioning block is positioned to workpiece again from the front of workpiece.The positioning mechanism of first cylinder, second cylinder and third cylinder adopts pneumatic pressurization mode, accurately positions workpiece, and has higher workpiece positioning accuracy and stability.This mechanism can ensure the accuracy and consistency of workpiece welding position, improve welding quality and product quality.

Description

Technical Field

[0001] This utility model relates to the field of projection welding machine technology, and in particular to a projection welding mechanism with a two-stage positioning function. Background Technology

[0002] A projection welding machine is a welding device mainly used for welding two or more metal projections, such as projection welding of plates, nuts, screws, cross-wire projection welding, pipe projection welding, and T-type projection welding of plates. Projection welding machines utilize pneumatic pressurization and bearing guidance, featuring precise weld point control and excellent electrode follow-up. The welding process is automatically controlled by a microcomputer control box, ensuring precise weld point control and excellent electrode follow-up. It is widely used in multi-point projection welding and spot welding of automotive parts and other mechanical components.

[0003] The routine operation of welding workpieces using a projection welding machine is as follows: The projection welding machine is equipped with a preliminary positioning tool that is adapted to the workpiece. After the worker holds the workpiece and places it in place, the upper electrode and the lower electrode are used to weld the workpiece.

[0004] However, the workpiece needs to withstand a lot of pressure and vibration during the welding process. If the positioning accuracy of the positioning mechanism is insufficient, the workpiece is prone to deformation or vibration, which will lead to changes in the position of the workpiece and affect the welding accuracy. Therefore, a projection welding mechanism with a two-stage positioning function is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0006] Therefore, one objective of this utility model is to propose a projection welding mechanism with a two-level positioning function to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0007] To achieve the above objectives, one embodiment of the present invention provides a projection welding mechanism with a two-stage positioning function, including a base and a projection welding lower connector seat, wherein the projection welding lower connector seat is fixedly connected to the top of the base;

[0008] The two sides of the projection welded lower joint seat are fixedly connected to joints, and the end face of the joint is fixedly connected to a wing plate.

[0009] A positioning platform is fixedly connected to the top of the wing plate. The positioning platform is divided into a horizontal part and a vertical part.

[0010] The positioning platform is located above the side of the projection welding lower joint seat, and a first cylinder is fixedly connected to the top surface of the horizontal part of the positioning platform.

[0011] An end plate is fixedly connected to the output end of the first cylinder, and a positioning block is fixedly connected to the front side of the end plate;

[0012] A guide rod is fixedly connected to the back of the end plate, and the guide rod is movably connected to the first cylinder;

[0013] A cylinder seat is fixedly connected to the longitudinal part of the positioning platform. A second cylinder is fixedly connected to the side of one of the cylinder seats. A first positioning head is fixedly connected to the side of the cylinder seat. An end plate is fixedly connected to the end of the output end of the second cylinder. A guide rod is fixedly connected to one side of the end plate. A positioning seat is fixedly connected to the end of the guide rod. The guide rod is movably connected to the corresponding cylinder seat.

[0014] Another cylinder seat has a third cylinder fixedly connected to its back. The output end of the third cylinder is fixedly connected to an end plate. A guide rod is fixedly connected to one side of the end plate. The guide rod is movably connected to the corresponding cylinder seat. A second positioning head is fixedly connected to the front of the end plate.

[0015] Preferably, in any of the above embodiments, the projection welding lower connector seat has several T-shaped grooves, and the projection welding lower connector seat is used to install the projection welding lower electrode.

[0016] The core structure of this device, using the above technical solution, consists of: a connector, a wing plate, a positioning platform, a first cylinder, an end plate, a positioning block, a guide rod, a cylinder seat, a second cylinder, a positioning seat, a third cylinder, a second positioning head, and a first positioning head.

[0017] The improvement of this device is that the joints are connected to both sides of the projection welding lower joint seat of the projection welding machine, and the wing plate is connected to the end of the joint. The top of the wing plate is fixedly connected to the positioning platform, and the first cylinder, the second cylinder and the third cylinder are installed above the positioning platform.

[0018] Preferably, in any of the above embodiments, the joint is welded to the projection weld lower joint seat, and the wing plate is located on both sides of the projection weld lower joint seat.

[0019] The above technical solution involves adding a two-stage positioning mechanism: a first cylinder, an end plate, a positioning block, a guide rod, a cylinder seat, a second cylinder, a positioning seat, a third cylinder, a second positioning head, and a first positioning head.

[0020] When the output end of the second cylinder retracts, the positioning seat, in conjunction with the first positioning head, performs initial positioning of the workpiece to be welded. When the output end of the third cylinder ejects, the second positioning head, in conjunction with the first positioning head, clamps and positions the workpiece. Finally, from the front of the workpiece, the output end of the first cylinder ejects, and the positioning block repositions the workpiece from the front. The positioning mechanism of the first, second, and third cylinders uses pneumatic pressurization to precisely position the workpiece, achieving high workpiece positioning accuracy and stability. This mechanism ensures the accuracy and consistency of the workpiece welding position, improving welding quality and product quality.

[0021] This mechanism features a large contact area and strong clamping force, ensuring the stability and reliability of the workpiece during the welding process. Furthermore, its simple structure and easy operation improve production efficiency and reduce maintenance costs.

[0022] This structure is applicable to workpieces of various shapes and sizes; simply adjusting the position of the cylinder and the dimensions of the clamps is sufficient to meet the positioning requirements of different workpieces. This mechanism offers high versatility and flexibility, enabling it to adapt to diverse production needs.

[0023] Preferably, in any of the above solutions, the positioning platform is welded to the top of the wing plate, and the first cylinder is installed laterally.

[0024] Preferably, in any of the above schemes, the direction of the first cylinder is perpendicular to the direction of the second cylinder and the third cylinder, and the second cylinder and the third cylinder are in a straight line.

[0025] Preferably, in any of the above schemes, the output ends of the second cylinder and the third cylinder face the same direction, and the positioning centers of the second cylinder, the third cylinder and the first cylinder are located directly above the projection welding lower joint seat.

[0026] Preferably, the positioning seat is U-shaped, as described in any of the above schemes.

[0027] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0028] 1. The projection welding mechanism with two-stage positioning function is provided with a two-stage positioning mechanism through the cooperation of the joint, wing plate, positioning platform, first cylinder, end plate, positioning block, guide rod, cylinder seat, second cylinder, positioning seat, third cylinder, second positioning head and first positioning head: first cylinder, end plate, positioning block, guide rod, cylinder seat, second cylinder, positioning seat, third cylinder, second positioning head and first positioning head.

[0029] When the output end of the second cylinder retracts, the positioning seat, in conjunction with the first positioning head, performs initial positioning of the workpiece to be welded. When the output end of the third cylinder ejects, the second positioning head, in conjunction with the first positioning head, clamps and positions the workpiece. Finally, from the front of the workpiece, the output end of the first cylinder ejects, and the positioning block repositions the workpiece from the front. The positioning mechanism of the first, second, and third cylinders uses pneumatic pressurization to precisely position the workpiece, achieving high workpiece positioning accuracy and stability. This mechanism ensures the accuracy and consistency of the workpiece welding position, improving welding quality and product quality.

[0030] 2. This mechanism has a large contact area and strong clamping force, ensuring the stability and reliability of the workpiece during the welding process. At the same time, its simple structure and convenient operation improve production efficiency and reduce maintenance costs.

[0031] This structure is applicable to workpieces of various shapes and sizes; simply adjusting the position of the cylinder and the dimensions of the clamps is sufficient to meet the positioning requirements of different workpieces. This mechanism offers high versatility and flexibility, enabling it to adapt to diverse production needs.

[0032] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0033] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0034] Figure 1 This is a first-view structural schematic diagram of the present invention;

[0035] Figure 2 This is a structural schematic diagram of the present invention from a second perspective;

[0036] Figure 3 This is a front view structural diagram of the present utility model;

[0037] Figure 4 This utility model Figure 1 A magnified structural diagram of point A in the middle.

[0038] In the diagram: 1-base, 2-lower projection weld joint seat, 3-joint, 4-wing plate, 5-positioning platform, 6-first cylinder, 7-end plate, 8-positioning block, 9-guide rod, 10-cylinder seat, 11-second cylinder, 12-positioning seat, 13-third cylinder, 14-second positioning head, 15-first positioning head. Detailed Implementation

[0039] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 according to the specific circumstances.

[0041] like Figure 1-4 As shown, this projection welding mechanism with a two-stage positioning function includes a base 1 and a projection welding lower connector seat 2. The projection welding lower connector seat 2 is fixedly connected to the top of the base 1.

[0042] The two sides of the projection welding lower joint seat 2 are fixedly connected to the joint 3, and the end face of the joint 3 is fixedly connected to the wing plate 4.

[0043] A positioning platform 5 is fixedly connected to the top of the wing plate 4. The positioning platform 5 is divided into a horizontal part and a vertical part.

[0044] The positioning platform 5 is located above the side of the projection welding lower joint seat 2, and the top surface of the horizontal part of the positioning platform 5 is fixedly connected to the first cylinder 6;

[0045] The output end of the first cylinder 6 is fixedly connected to an end plate 7, and a positioning block 8 is fixedly connected to the front side of the end plate 7.

[0046] A guide rod 9 is fixedly connected to the back of the end plate 7, and the guide rod 9 is movably connected to the first cylinder 6;

[0047] A cylinder seat 10 is fixedly connected to the longitudinal part of the positioning platform 5. A second cylinder 11 is fixedly connected to the side of one of the cylinder seats 10. A first positioning head 15 is fixedly connected to the side of the cylinder seat 10. An end plate 7 is fixedly connected to the end of the output end of the second cylinder 11. A guide rod 9 is fixedly connected to one side of the end plate 7. A positioning seat 12 is fixedly connected to the end of the guide rod 9. The guide rod 9 is movably connected to the corresponding cylinder seat 10.

[0048] A third cylinder 13 is fixedly connected to the back of another cylinder seat 10. An end plate 7 is fixedly connected to the output end of the third cylinder 13. A guide rod 9 is fixedly connected to one side of the end plate 7. The guide rod 9 is movably connected to the corresponding cylinder seat 10. A second positioning head 14 is fixedly connected to the front of the end plate 7.

[0049] Example 1: Several T-slots are formed on the projection welding lower connector seat 2, which is used to install the projection welding lower electrode. The core structure of this device is: connector 3, wing plate 4, positioning platform 5, first cylinder 6, end plate 7, positioning block 8, guide rod 9, cylinder seat 10, second cylinder 11, positioning seat 12, third cylinder 13, second positioning head 14, and first positioning head 15. The improvement of this device is that the connector 3 is connected to both sides of the projection welding lower connector seat 2 of the projection welding machine, and the wing plate 4 is connected to the end of the connector 3. The top of the wing plate 4 is fixedly connected to the positioning platform 5, and the first cylinder 6, second cylinder 11, and third cylinder 13 are installed above the positioning platform 5.

[0050] Example 2: Joint 3 is welded to the projection weld lower joint seat 2, and wing plate 4 is located on both sides of projection weld lower joint seat 2. A two-stage positioning mechanism is added: first cylinder 6, end plate 7, positioning block 8, guide rod 9, cylinder seat 10, second cylinder 11, positioning seat 12, third cylinder 13, second positioning head 14, and first positioning head 15. Positioning platform 5 is welded to the top of wing plate 4, and first cylinder 6 is installed laterally. The direction of first cylinder 6 is perpendicular to the direction of second cylinder 11 and third cylinder 13, and second cylinder 11 and third cylinder 13 are in a straight line. The output ends of second cylinder 11 and third cylinder 13 face the same direction, and the positioning center of second cylinder 11, third cylinder 13, and first cylinder 6 is located directly above projection weld lower joint seat 2. Positioning seat 12 is U-shaped.

[0051] The working principle of this utility model is as follows:

[0052] S1. When the output end of the second cylinder 11 retracts, the positioning seat 12 cooperates with the first positioning head 15 to perform initial positioning of the workpiece to be welded. When the output end of the third cylinder 13 pushes out, the second positioning head 14 cooperates with the first positioning head 15 to clamp and position the workpiece. Finally, on the front side of the workpiece, the output end of the first cylinder 6 pushes out, and the positioning block 8 positions the workpiece again from the front side of the workpiece.

[0053] S2. Start the welding program. The cylinder begins to pressurize, causing the upper electrode to apply pressure to the surface of the workpiece. The upper electrode, in conjunction with the lower electrode, uses resistance heating to locally heat the surface of the workpiece to a molten state, forming a molten pool. While the molten pool is forming, the upper electrode continues to apply pressure, causing the metal materials in the molten pool to be squeezed together to form a welded joint. After welding is completed, the projection welding machine releases pressure, removes the welded workpiece, and inspects the welding quality. If there are any problems, they can be repaired or re-welded.

[0054] Compared with the prior art, the present invention has the following advantages:

[0055] 1. The projection welding mechanism with two-stage positioning function is provided by the cooperation of the joint 3, wing plate 4, positioning platform 5, first cylinder 6, end plate 7, positioning block 8, guide rod 9, cylinder seat 10, second cylinder 11, positioning seat 12, third cylinder 13, second positioning head 14 and first positioning head 15 to add a two-stage positioning mechanism: first cylinder 6, end plate 7, positioning block 8, guide rod 9, cylinder seat 10, second cylinder 11, positioning seat 12, third cylinder 13, second positioning head 14 and first positioning head 15.

[0056] When the output end of the second cylinder 11 retracts, the positioning seat 12, in conjunction with the first positioning head 15, performs initial positioning of the workpiece to be welded. When the output end of the third cylinder 13 ejects, the second positioning head 14, in conjunction with the first positioning head 15, clamps and positions the workpiece. Finally, from the front of the workpiece, the output end of the first cylinder 6 ejects, and the positioning block 8 repositions the workpiece from the front. The positioning mechanism of the first cylinder 6, the second cylinder 11, and the third cylinder 13 uses pneumatic pressurization to precisely position the workpiece, achieving high workpiece positioning accuracy and stability. This mechanism ensures the accuracy and consistency of the workpiece welding position, improving welding quality and product quality.

[0057] 2. This mechanism has a large contact area and strong clamping force, ensuring the stability and reliability of the workpiece during the welding process. At the same time, its simple structure and convenient operation improve production efficiency and reduce maintenance costs.

[0058] This structure is applicable to workpieces of various shapes and sizes; simply adjusting the position of the cylinder and the dimensions of the clamps is sufficient to meet the positioning requirements of different workpieces. This mechanism offers high versatility and flexibility, enabling it to adapt to diverse production needs.

Claims

1. A projection welding mechanism with a two-stage positioning function, characterized in that, Includes a base (1) and a projection welded lower connector seat (2), wherein the top of the base (1) is fixedly connected to the projection welded lower connector seat (2). The two sides of the projection welded lower joint seat (2) are fixedly connected to the joint (3), and the end face of the joint (3) is fixedly connected to the wing plate (4). The top of the wing plate (4) is fixedly connected to a positioning platform (5), which is divided into a horizontal part and a vertical part; The positioning platform (5) is located above the side of the projection welding lower joint seat (2), and the top surface of the horizontal part of the positioning platform (5) is fixedly connected to the first cylinder (6). The output end of the first cylinder (6) is fixedly connected to an end plate (7), and a positioning block (8) is fixedly connected to the front side of the end plate (7). A guide rod (9) is fixedly connected to the back of the end plate (7), and the guide rod (9) is movably connected to the first cylinder (6); A cylinder seat (10) is fixedly connected to the longitudinal part of the positioning platform (5). A second cylinder (11) is fixedly connected to the side of one of the cylinder seats (10). A first positioning head (15) is fixedly connected to the side of the cylinder seat (10). An end plate (7) is fixedly connected to the end of the output end of the second cylinder (11). A guide rod (9) is fixedly connected to one side of the end plate (7). A positioning seat (12) is fixedly connected to the end of the guide rod (9). The guide rod (9) is movably connected to the corresponding cylinder seat (10). Another cylinder seat (10) is fixedly connected to the back of a third cylinder (13), and the output end of the third cylinder (13) is fixedly connected to an end plate (7). A guide rod (9) is fixedly connected to one side of the end plate (7), and the guide rod (9) is movably connected to the corresponding cylinder seat (10). A second positioning head (14) is fixedly connected to the front of the end plate (7).

2. The projection welding mechanism with secondary positioning function as described in claim 1, characterized in that: The projection welding lower connector seat (2) has several T-shaped grooves, and the projection welding lower connector seat (2) is used to install the projection welding lower electrode.

3. The projection welding mechanism with secondary positioning function as described in claim 2, characterized in that: The joint (3) is welded to the projection weld lower joint seat (2), and the wing plate (4) is located on both sides of the projection weld lower joint seat (2).

4. The projection welding mechanism with secondary positioning function as described in claim 3, characterized in that: The positioning platform (5) is welded to the top of the wing plate (4), and the first cylinder (6) is installed laterally.

5. A projection welding mechanism with a two-stage positioning function as described in claim 4, characterized in that: The direction of the first cylinder (6) is perpendicular to the direction of the second cylinder (11) and the third cylinder (13), and the second cylinder (11) and the third cylinder (13) are in a straight line.

6. The projection welding mechanism with secondary positioning function as described in claim 5, characterized in that: The output ends of the second cylinder (11) and the third cylinder (13) face the same direction, and the positioning center of the second cylinder (11), the third cylinder (13) and the first cylinder (6) is located directly above the projection welding lower connector seat (2).

7. A projection welding mechanism with a two-stage positioning function as described in claim 6, characterized in that: The positioning seat (12) is U-shaped.

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