A projection welding device with adaptive fixing function

Abstract

This utility model discloses a projection welding device with adaptive fixing function, applied in the field of projection welding equipment. It includes a projection welding machine, on the surface of which a welding mechanism is provided. Two fixing plates are bolted to the surface of the projection welding machine, and a first cylinder is bolted to the surface of each fixing plate. A push plate is bolted to the output end of the first cylinder, and two sliding rods are slidably sleeved on the inner wall of the push plate. This utility model uses the left and right first cylinders to drive the clamping head to clamp the workpiece left and right, ensuring the stability of the workpiece during the welding process. By utilizing a pre-tensioned first spring to provide a continuous and stable pre-tension force to the clamping arm, the stability of the clamping force during the welding process is ensured, thus achieving adaptive pressure compensation. This utility model allows for adjustment of the pre-tension force of the first spring by loosening the nut and rotating the screw, which changes the elastic force of the first spring. This facilitates use and improves applicability.

Description

Technical Field

[0001] This utility model relates to the field of projection welding equipment, and in particular to a projection welding device with an adaptive fixing function. Background Technology

[0002] Projection welding equipment is a type of welding device that is mainly used for welding protrusions or holes in various metals, such as the connection between stainless steel and carbon steel, the connection between copper and non-ferrous metals such as aluminum, and the heat sealing of plastic and rubber products.

[0003] A search of Chinese patents revealed publication number CN221185068U, which discloses a projection welding device for automotive parts. The device includes a main body and a cleaning component. An upper connecting block and a lower connecting block are fixedly mounted on the main body. Both the upper and lower connecting blocks have positioning blocks, and fasteners are installed within each positioning block. An upper electrode rod and a lower electrode rod are respectively located within each positioning block. The fasteners are used for quick fixing and adjustment of the upper and lower electrode rods. The cleaning component is located on the positioning block connected to the upper electrode rod and is positioned outside the upper electrode rod, used to absorb and clean the fumes generated during welding. This invention effectively solves the problem that projection welding devices generate harmful fumes during welding, which are easily inhaled by workers and can cause long-term health problems. Furthermore, the removal of the upper and lower electrode rods for cleaning is cumbersome and inconvenient for quick assembly and disassembly.

[0004] Existing projection welding devices lack adaptive fixing functionality. For conventional flat workpieces, traditional fixing mechanisms are mostly rigid clamps. When there are errors in the workpiece thickness, the clamping may be too loose or too tight. If the clamping is too loose, the workpiece will shift during welding, resulting in misaligned weld points. If the clamping is too tight, the workpiece will easily deform, affecting the accuracy of subsequent processing and making it inconvenient to use. To solve the above problems, we propose a projection welding device with adaptive fixing functionality. Utility Model Content

[0005] The purpose of this invention is to provide a projection welding device with an adaptive fixing function, the advantage of which is that it has an adaptive fixing function.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a projection welding device with adaptive fixing function, including a projection welding machine, a welding mechanism provided on the surface of the projection welding machine, two fixing plates bolted to the surface of the projection welding machine, a first cylinder bolted to the surface of the fixing plates, a push plate bolted to the output end of the first cylinder, two sliding rods slidably sleeved on the inner wall of the push plate, a fixing seat bolted to one end of the sliding rod, a clamping head provided on the surface of the fixing seat, an adjusting plate slidably sleeved on the surface of the sliding rod, a first spring provided between the adjusting plate and the fixing seat, and the first spring sleeved on the surface of the sliding rod, a screw threadedly connected to the inner wall of the adjusting plate, and the screw rotatably sleeved with the inner wall of the push plate.

[0007] By adopting the above technical solution, the left and right first cylinders drive the clamping head to clamp the workpiece from left and right, ensuring the stability of the workpiece during the welding process. By using the pre-tensioned first spring to provide a continuous and stable pre-tensioning force to the clamping arm, the stability of the clamping force during the welding process is ensured, thus achieving adaptive pressure compensation. By loosening the nut and rotating the screw to move the adjusting plate, the movement of the adjusting plate changes the elastic force of the first spring, which can adjust the pre-tensioning force of the first spring, making it convenient to use and improving its applicability.

[0008] The present invention is further configured such that: a telescopic rod is slidably sleeved on the inner wall of the fixed base, and the top of the telescopic rod is bolted to the bottom of the clamping head, and a second spring is provided between the bottom of the telescopic rod and the inner wall of the fixed base.

[0009] By adopting the above technical solution, and by setting a telescopic rod and a second spring, the workpiece can make better contact with the lower electrode rod, thus ensuring the welding effect.

[0010] The present invention is further configured such that a rubber pad is provided on the surface of the clamping head.

[0011] By adopting the above technical solution, rubber pads are installed to prevent damage to the workpiece.

[0012] The present invention is further configured such that a bolt is threadedly connected between the inner wall of the rubber pad and the inner wall of the clamping head.

[0013] By adopting the above technical solution and setting bolts, it is easy to disassemble and replace the rubber gasket.

[0014] The present invention is further configured such that the surface of the slide rod is printed with scale lines.

[0015] By adopting the above technical solution, the preload of the first spring can be easily adjusted by setting scale lines.

[0016] The present invention is further configured such that: two guide rods are slidably sleeved on the inner wall of the fixed plate, and one end of the guide rod is bolted to the surface of the push plate.

[0017] By adopting the above technical solution and setting guide rods, the stability of the push plate is improved.

[0018] The present invention is further configured such that: the welding mechanism includes a gas tank, the gas tank is installed on the top of the projection welding machine, the surface of the gas tank is connected to a solenoid valve through a gas pipe, a second cylinder is installed on the top of the projection welding machine, an upper electrode rod is installed at the bottom of the second cylinder, an electrode seat is installed on the surface of the projection welding machine, and a lower electrode rod is installed on the top of the electrode seat.

[0019] The above technical solution, by setting up a welding mechanism, makes welding inconvenient.

[0020] The present invention is further configured such that a nut is threaded onto the surface of the screw.

[0021] By adopting the above technical solution, a nut is installed to prevent the screw from loosening.

[0022] In summary, this utility model has the following beneficial effects: 1. This utility model uses left and right first cylinders to drive the clamping head to clamp the workpiece from left and right, ensuring the stability of the workpiece during the welding process. By using the pre-tensioning first spring to provide a continuous and stable pre-tensioning force to the clamping arm, the stability of the clamping force during the welding process is ensured, thus achieving adaptive pressure compensation. 2. This utility model allows for the adjustment of the preload of the first spring by loosening the nut and rotating the screw to move the adjusting plate. The movement of the adjusting plate changes the elastic force of the first spring, making it convenient to use and improving its applicability. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural view of the present invention; Figure 2 This is a top sectional view of a partial structure of this utility model; Figure 3 This is a partial three-dimensional cross-sectional view of the structure of this utility model; Figure 4 This is a utility model Figure 1 Enlarged view of the structure at point A in the middle.

[0024] Reference numerals: 1. Projection welding machine; 2. Welding mechanism; 3. Fixing plate; 4. First cylinder; 5. Push plate; 6. Slide rod; 7. Fixing seat; 8. Clamping head; 9. Adjusting plate; 10. First spring; 11. Screw; 12. Telescopic rod; 13. Second spring; 14. Rubber pad; 15. Bolt; 16. Scale line; 17. Guide rod; 18. Air tank; 19. Solenoid valve; 20. Second cylinder; 21. Upper electrode rod; 22. Electrode seat; 23. Lower electrode rod; 24. Nut. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Example 1: refer to Figure 1 , Figure 2 and Figure 4 A projection welding device with adaptive fixing function includes a projection welding machine 1, which is a Xingke DN-25 projection welding machine. The surface of the projection welding machine 1 is provided with a welding mechanism 2. Two fixing plates 3 are bolted to the surface of the projection welding machine 1. A first cylinder 4 is bolted to the surface of the fixing plates 3. A push plate 5 is bolted to the output end of the first cylinder 4. Two sliding rods 6 are slidably sleeved on the inner wall of the push plate 5. A fixing seat 7 is bolted to one end of each sliding rod 6. A clamping head 8 is provided on the surface of the fixing seat 7. An adjusting plate 9 is slidably sleeved on the surface of the sliding rod 6. A first spring 10 is provided between the adjusting plate 9 and the fixing seat 7, and the first spring 10 is sleeved on the surface of the sliding rod 6. The inner wall of the adjusting plate 9 is threaded with a screw 11, and the screw 11 is rotatably sleeved with the inner wall of the push plate 5. The left and right first cylinders 4 drive the clamping head 8 to clamp the workpiece left and right, ensuring the stability of the workpiece during the welding process. By using the pre-tensioned first spring 10 to provide a continuous and stable pre-tension force to the clamping arm, the stability of the clamping force during the welding process is ensured, and the pressure self-adaptive compensation can be achieved. By loosening the nut 24 and rotating the screw 11, the adjusting plate 9 is moved. The movement of the adjusting plate 9 changes the elastic force of the first spring 10, which can adjust the pre-tension force of the first spring 10, making it convenient to use and improving its applicability.

[0027] refer to Figure 3 A telescopic rod 12 is slidably sleeved on the inner wall of the fixed base 7, and the top of the telescopic rod 12 is bolted to the bottom of the clamping head 8. A second spring 13 is provided between the bottom of the telescopic rod 12 and the inner wall of the fixed base 7. By setting the telescopic rod 12 and the second spring 13, the workpiece can better contact the lower electrode rod 23, ensuring the welding effect.

[0028] refer to Figure 2 The surface of the clamping head 8 is provided with a rubber pad 14 to prevent damage to the workpiece.

[0029] refer to Figure 2 A bolt 15 is threaded between the inner wall of the rubber pad 14 and the inner wall of the clamping head 8. The bolt 15 facilitates the disassembly and replacement of the rubber pad 14.

[0030] refer to Figure 2 The surface of the slide bar 6 is printed with scale lines 16. By setting the scale lines 16, it is easy to adjust the preload of the first spring 10.

[0031] refer to Figure 2 and Figure 4Two guide rods 17 are slidably sleeved on the inner wall of the fixed plate 3, and one end of the guide rod 17 is bolted to the surface of the push plate 5. By setting the guide rods 17, the stability of the push plate 5 is improved.

[0032] refer to Figure 1 The welding mechanism 2 includes an air tank 18, which is installed on the top of the projection welding machine 1. The surface of the air tank 18 is connected to a solenoid valve 19 via an air pipe. A second cylinder 20 is installed on the top of the projection welding machine 1. An upper electrode rod 21 is installed at the bottom of the second cylinder 20. An electrode seat 22 is installed on the surface of the projection welding machine 1. A lower electrode rod 23 is installed on the top of the electrode seat 22. By setting up the welding mechanism 2, welding is not convenient.

[0033] refer to Figure 2 The screw 11 is threaded with a nut 24 to prevent the screw 11 from loosening.

[0034] Brief description of the operation: Place the workpiece between the clamping heads 8, then open the first cylinder 4. The movement of the first cylinder 4 moves the push plate 5, which in turn moves the screw 11. The movement of the screw 11 moves the adjusting plate 9, which in turn moves the first spring 10, causing the fixed seat 7 to move. The movement of the fixed seat 7 moves the chuck, clamping and fixing the workpiece. The first spring 10 adaptively adjusts the pressure according to the size of the workpiece, ensuring the stability of the clamping. Then, the second cylinder 20 moves the upper electrode rod 21 downwards, and the lower electrode rod 23... After the lowering cylinder contacts the workpiece, it will cause the workpiece to move downwards, so that the bottom of the workpiece contacts the lower electrode rod 23 for welding. After welding is completed, the second cylinder 20 drives the upper electrode rod 21 to reset. At the same time, the telescopic rod 12, under the action of the second spring 13, drives the clamping head 8 to raise the workpiece to reset, completing the welding. By loosening the nut 24 and rotating the screw 11, the screw 11 rotates and moves the adjusting plate 9. The movement of the adjusting plate 9 changes the elastic force of the first spring 10, thereby adjusting the preload of the first spring 10 and ensuring the stability of the clamping.

[0035] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0036] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A projection welding device with adaptive fixed functions, comprising a projection welding machine (1), characterized in that, The surface of the projection welding machine (1) is provided with a welding mechanism (2). Two fixing plates (3) are bolted to the surface of the projection welding machine (1). A first cylinder (4) is bolted to the surface of the fixing plate (3). A push plate (5) is bolted to the output end of the first cylinder (4). Two slide rods (6) are slidably sleeved on the inner wall of the push plate (5). A fixed seat (7) is bolted to one end of the slide rod (6). A clamping head (8) is provided on the surface of the fixed seat (7). An adjusting plate (9) is slidably sleeved on the surface of the slide rod (6). A first spring (10) is provided between the adjusting plate (9) and the fixed seat (7). The first spring (10) is sleeved on the surface of the slide rod (6). A screw (11) is threadedly connected to the inner wall of the adjusting plate (9). The screw (11) is rotatably sleeved with the inner wall of the push plate (5).

2. A projection welding device with self-adapting fixed functions according to claim 1, characterized in that, The inner wall of the fixed seat (7) is slidably sleeved with a telescopic rod (12), and the top of the telescopic rod (12) is bolted to the bottom of the clamping head (8). A second spring (13) is provided between the bottom of the telescopic rod (12) and the inner wall of the fixed seat (7).

3. A projection welding device with self-adapting fixed functions according to claim 1, characterized in that, The surface of the clamping head (8) is provided with a rubber pad (14).

4. A projection welding device with self-adapting fixed functions according to claim 3, characterized in that, A bolt (15) is threaded between the inner wall of the rubber pad (14) and the inner wall of the clamping head (8).

5. A projection welding device with self-adapting fixed functions according to claim 1, characterized in that, The surface of the slide bar (6) is printed with scale lines (16).

6. A projection welding device with self-adapting fixed functions according to claim 1, characterized in that, The inner wall of the fixed plate (3) is slidably fitted with two guide rods (17), and one end of the guide rod (17) is bolted to the surface of the push plate (5).

7. A projection welding device with self-adapting fixed functions according to claim 1, characterized in that, The welding mechanism (2) includes a gas tank (18), which is installed on the top of the projection welding machine (1). The surface of the gas tank (18) is connected to a solenoid valve (19) through a gas pipe. A second cylinder (20) is installed on the top of the projection welding machine (1). An upper electrode rod (21) is installed at the bottom of the second cylinder (20). An electrode seat (22) is installed on the surface of the projection welding machine (1). A lower electrode rod (23) is installed on the top of the electrode seat (22).

8. A projection welding device with self-adapting fixed functions according to claim 1, characterized in that, The screw (11) is threaded with a nut (24).

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