Limiting structure of welding machine

Abstract

The utility model discloses a limiting structure of a welding machine, which relates to the technical field of welding equipment and comprises a spot welding machine body, one end of the spot welding machine body close to a spot welding groove is in threaded connection with a fixing frame, a moving block is slidably connected in the fixing frame, the upper end of the moving block is fixedly connected with a fixing column, and two ends of the fixing column are symmetrically and fixedly connected with unlocking blocks. An unlocking assembly is installed in the unlocking block, a welding plate is installed at the upper end of the fixing column, a connecting block is fixedly connected to the bottom end of the welding plate, connecting assemblies are symmetrically installed in the connecting block, and clamping assemblies are symmetrically installed at the upper end of the welding plate. By the adoption of the structure, complexity and uncertainty in the welding plate mounting process are reduced, operation difficulty is lowered, working efficiency is improved, the welding plate mounting device can adapt to welding parts of different specifications and types, practicability and the utilization rate of equipment are improved, meanwhile, a user can conveniently and thoroughly clean the welding plate, and the welding plate mounting efficiency is improved. The cleanliness of a welded plate is ensured, and the welding quality is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding equipment, and particularly relates to a limit structure of a welding machine. Background Art

[0002] A welding machine is a device that converts electrical energy into thermal energy, mechanical energy, or chemical energy required for welding, and is mainly used for welding metals. It can form a permanent bond by applying pressure to metal workpieces or by melting the base metal and filler with the arc heat between the electrode and the workpiece. A welding machine usually consists of a power source, a control device, a wire feeding device, a welding torch, etc. The power source provides the electrical energy required for welding, the control device is used to control welding parameters such as current, voltage, and welding speed, the wire feeding device is responsible for feeding the welding wire into the welding area, and the welding torch or welding pliers are the main tools for the welder to operate and are used for actual welding work. The limit structure of the welding machine is mainly to ensure the stability and position accuracy of the welded parts during the welding process, prevent the welded parts from moving or shifting during the welding process, and thus improve the welding quality and efficiency.

[0003] A welding part limit structure for a spot welding machine with the publication number "CN213497408U" includes a base. The upper surface of the base is fixedly connected with a frame and an operating table. The upper surface of the operating table is fixedly connected with two U-shaped frames. A strip-shaped opening is formed in the middle of the surface of the operating table. The two U-shaped frames are respectively located on both sides of the strip-shaped opening. One side of the outer wall of each of the two U-shaped frames is fixedly connected with a motor. The driving end of the motor extends into the interior of the U-shaped frame and is fixedly connected with a first threaded rod. The end of the first threaded rod away from the motor is rotatably connected with the inner wall of the U-shaped frame. The limit structure of the utility model is convenient for limiting and fixing plate-shaped welded parts of different sizes, and at the same time is convenient for automatically moving to move the welded parts, improving the stability of the movement of the welded parts during the welding process, improving the work efficiency and the qualified rate of products, and reducing the labor intensity of workers to a certain extent.

[0004] Although the above-mentioned utility model is convenient for limiting and fixing plate-shaped welded parts of different sizes, and at the same time is convenient for automatically moving to move the welded parts, improving the stability of the movement of the welded parts during the welding process, improving the work efficiency and the qualified rate of products, and reducing the labor intensity of workers to a certain extent, it is impossible to replace the welding disc and the clamping assembly. Then it means that it can only adapt to one or a few specific welding requirements, which greatly limits the flexibility of the spot welding machine in various application scenarios. Moreover, when the shape, size, or material of the workpiece to be welded changes, if the clamping assembly cannot be replaced to adapt to the new workpiece, then it is necessary to stop the machine for adjustment or replace the entire device, which will cause the production line to stop and thus affect the production efficiency. Summary of the Utility Model

[0005] In view of the problems mentioned in the background art, the purpose of the present utility model is to provide a limiting structure for a welding machine, so as to solve the problem that it can only adapt to one or a few specific welding requirements, which greatly limits the flexibility of the spot welding machine in various application scenarios.

[0006] The above technical purpose of the present utility model is achieved through the following technical solutions:

[0007] A limiting structure for a welding machine, including a spot welding machine body. One end of the spot welding machine body is provided with a spot welding groove. At the upper and lower ends inside the spot welding groove, spot welding heads are symmetrically installed. One end of the spot welding machine body close to the spot welding groove is threadedly connected with a fixing frame. Inside the fixing frame, a moving block is slidably connected. At the upper end of the moving block, a fixing column is fixedly connected. At both ends of the fixing column, unlocking blocks are symmetrically fixedly connected. Inside the unlocking blocks, unlocking components are installed. At the upper end of the fixing column, a welding plate is installed. At the bottom end of the welding plate, a connecting block is fixedly connected. Inside the connecting block, connecting components are symmetrically installed. At the upper end of the welding plate, clamping components are symmetrically installed;

[0008] The connecting components include a first accommodation cavity, a first return spring, a moving plate, a locking block and an inclined surface. Inside the connecting block, first accommodation cavities are symmetrically opened. At one end inside the first accommodation cavity, a first return spring is fixedly connected. At the other end of the first return spring, a moving plate is fixedly connected. The moving plate is slidably connected with the inside of the first accommodation cavity. At the end of the moving plate away from the first return spring, a locking block is fixedly connected. The end of the locking block away from the moving plate extends out of the side end of the connecting block. The bottom end of the locking block is provided with an inclined surface. At the upper end of the fixing column, a connecting groove is opened. The connecting groove is inserted into the connecting block. Inside the connecting groove, a locking groove is opened. The locking groove is clamped with the locking block, reducing the complexity and uncertainty in the installation process of the welding plate, lowering the operation difficulty, making it easier for users to get started, improving work efficiency, and also being able to adapt to different specifications and types of welding parts, improving the practicability and utilization rate of the equipment.

[0009] As a preferred technical solution, the unlocking components include an internal hole, a second return spring, a connecting column, a pressing block and a pushing plate. One end of the unlocking block is provided with an internal hole. At one end inside the internal hole, a second return spring is fixedly connected. At the other end of the second return spring, a pressing block is fixedly connected. The pressing block is slidably connected with the inside of the internal hole. At the end of the pressing block close to the second return spring, a connecting column is fixedly connected. The second return spring is sleeved outside the connecting column. The end of the connecting column away from the pressing block extends into the locking groove. At the end of the connecting column away from the pressing block, a pushing plate is fixedly connected. The pushing plate is slidably connected with the locking groove, facilitating the user to thoroughly clean the welding plate, ensuring the cleanliness of the welding plate, and improving the welding quality.

[0010] As a preferred technical solution, a cylinder is installed at one end inside the fixing frame. The telescopic end of the cylinder is fixedly connected to one end of the fixing column. Positioning rods are symmetrically and fixedly connected to both ends inside the fixing frame. The moving block is sleeved outside the positioning rods, and the moving block is slidably connected to the positioning rods. A T-shaped groove is opened at the bottom end inside the fixing frame. A T-shaped block is fixedly connected to the bottom end of the moving block, and the T-shaped block is slidably connected to the T-shaped groove, ensuring the welding accuracy and consistency, helping to improve the product quality and reducing the generation of defective products.

[0011] As a preferred technical solution, the clamping assembly includes a first clamping block, a second clamping block, a first limiting column, a second limiting column, a moving hole, and a tension spring. First clamping blocks are symmetrically and fixedly connected to the upper end of the welding plate. First limiting columns are symmetrically embedded inside the first clamping blocks. A moving hole is opened at the upper end of the first limiting column. A tension spring is fixedly connected to the bottom end inside the moving hole. The other end of the tension spring is fixedly connected to a second limiting column. The second limiting column is slidably connected to the moving hole. The end of the second limiting column away from the tension spring is fixedly connected to a second clamping block, which can prevent the workpiece from moving or shaking during the welding process, thus ensuring the welding stability and quality.

[0012] In summary, the present utility model mainly has the following beneficial effects:

[0013] First, in the present utility model, the welding plate and the fixing column are combined, and at the same time, the connecting block is inserted into the connecting groove. During the insertion process, the extrusion force presses on the bottom inclined surface of the locking block, causing the locking block to drive the moving plate to compress the first return spring. When the locking block moves to the locking groove, the first return spring resets, the moving plate rebounds, and the locking block pops out and is snap-fitted with the locking groove to complete the installation of the welding plate, reducing the complexity and uncertainty during the installation process of the welding plate, lowering the operation difficulty, making it easier for users to get started, and improving the work efficiency. On the production line where welding parts need to be frequently replaced, this advantage is particularly prominent, which can save a lot of time, improve the production efficiency, and at the same time can adapt to different specifications and types of welding parts, improving the practicability and utilization rate of the equipment;

[0014] Second, in the present utility model, when pressing the pressing block, the connecting column drives the push plate to move, and at the same time, the second return spring is compressed. The push plate pushes the locking block, causing the locking block to drive the moving plate to compress the first return spring. At the same time, the locking block ends the snap connection with the locking groove. Then, the welding plate is lifted upward, the connecting block ends the insertion connection with the connecting groove, and at the same time, the pressing block is released, the second return spring resets, and the pressing block pops out to complete the disassembly of the welding plate, enabling maintenance personnel to quickly remove the welding plate from the spot welder for maintenance or replacement. This reduces the downtime, improves the utilization rate of the equipment, reduces the maintenance cost, and during the welding process, impurities such as welding slag and oil stain will accumulate on the welding plate, affecting the welding quality. It is convenient for users to thoroughly clean the welding plate, ensuring the cleanliness of the welding plate and improving the welding quality. Brief Description of the Drawings

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a three-dimensional structural schematic diagram of the fixing frame of the present utility model;

[0017] Figure 3 is a sectional three-dimensional structural schematic diagram of the clamping assembly of the present utility model;

[0018] Figure 4 is a sectional three-dimensional structural schematic diagram of the connection assembly of the present utility model.

[0019] Reference numerals: 1, spot welder body; 2, spot welding groove; 3, spot welding head; 4, fixing frame; 5, cylinder; 6, positioning rod; 7, T-shaped groove; 8, T-shaped block; 9, moving block; 10, fixing column; 11, welding plate; 12, connecting block; 13, connecting groove; 14, connection assembly; 141, accommodating cavity; 142, first return spring; 143, moving plate; 144, locking block; 145, inclined surface; 15, locking groove; 16, unlocking block; 17, unlocking assembly; 171, built-in hole; 172, second return spring; 173, connecting column; 174, pressing block; 175, pushing plate; 18, clamping assembly; 181, first clamping block; 182, second clamping block; 183, first limiting column; 184, second limiting column; 185, moving hole; 186, tension spring. Detailed Description of the Invention

[0020] Referring to Figures 1 to 4 , a limit structure of a welding machine according to this embodiment includes a spot welder body 1. One end of the spot welder body 1 is provided with a spot welding groove 2. Spot welding heads 3 are symmetrically installed at the upper and lower ends inside the spot welding groove 2. A fixing frame 4 is threadedly connected to one end of the spot welder body 1 close to the spot welding groove 2. A moving block 9 is slidably connected inside the fixing frame 4. A fixing column 10 is fixedly connected to the upper end of the moving block 9. Unlocking blocks 16 are symmetrically fixedly connected to both ends of the fixing column 10. An unlocking assembly 17 is installed inside the unlocking block 16. A welding plate 11 is installed at the upper end of the fixing column 10. A connecting block 12 is fixedly connected to the bottom end of the welding plate 11. Connection assemblies 14 are symmetrically installed inside the connecting block 12. Clamping assemblies 18 are symmetrically installed at the upper end of the welding plate 11;

[0021] The connecting component 14 includes a first accommodation cavity 141, a first return spring 142, a moving plate 143, a locking block 144 and an inclined surface 145. The first accommodation cavities 141 are symmetrically formed inside the connecting block 12. One end inside the first accommodation cavity 141 is fixedly connected with the first return spring 142, and the other end of the first return spring 142 is fixedly connected with the moving plate 143. The moving plate 143 is slidably connected with the inside of the first accommodation cavity 141. One end of the moving plate 143 away from the first return spring 142 is fixedly connected with the locking block 144. One end of the locking block 144 away from the moving plate 143 extends out of the side end of the connecting block 12. The bottom end of the locking block 144 is provided with the inclined surface 145. A connecting groove 13 is formed at the upper end of the fixed column 10. The connecting groove 13 is inserted with the connecting block 12. A locking groove 15 is formed inside the connecting groove 13. The locking groove 15 is clamped with the locking block 144. The welding plate 11 and the fixed column 10 are combined. At the same time, the connecting block 12 is inserted into the connecting groove 13. During the insertion process, the extrusion force presses the inclined surface 145 at the bottom end of the locking block 144, so that the locking block 144 drives the moving plate 143 to compress the first return spring 142. When the locking block 144 moves to the locking groove 15, the first return spring 142 resets, the moving plate 143 rebounds, and the locking block 144 pops out and is clamped and fixed with the locking groove 15, completing the installation of the welding plate 11.

[0022] Reference Figure 4 , the unlocking component 17 includes a built-in hole 171, a second return spring 172, a connecting column 173, a pressing block 174 and a pushing plate 175. One end of the unlocking block 16 is provided with the built-in hole 171. One end inside the built-in hole 171 is fixedly connected with the second return spring 172, and the other end of the second return spring 172 is fixedly connected with the pressing block 174. The pressing block 174 is slidably connected with the inside of the built-in hole 171. One end of the pressing block 174 close to the second return spring 172 is fixedly connected with the connecting column 173. The second return spring 172 is sleeved outside the connecting column 173. One end of the connecting column 173 away from the pressing block 174 extends into the locking groove 15. One end of the connecting column 173 away from the pressing block 174 is fixedly connected with the pushing plate 175. The pushing plate 175 is slidably connected with the locking groove 15. Press the pressing block 174, the connecting column 173 drives the pushing plate 175 to move, and at the same time the second return spring 172 is compressed. The pushing plate 175 pushes the locking block 144, so that the locking block 144 drives the moving plate 143 to compress the first return spring 142. At the same time, the locking block 144 ends the clamping with the locking groove 15. Then lift the welding plate 11 upward, the connecting block 12 ends the insertion with the connecting groove 13. At the same time, release the pressing block 174, the second return spring 172 resets, and the pressing block 174 pops out, completing the disassembly of the welding plate 11.

[0023] Reference Figure 2, a cylinder 5 is installed at one end inside the fixing frame 4. The telescopic end of the cylinder 5 is fixedly connected to one end of the fixing column 10. Two ends inside the fixing frame 4 are symmetrically and fixedly connected with positioning rods 6. The moving block 9 is sleeved outside the positioning rods 6, and the moving block 9 is slidably connected to the positioning rods 6. A T-shaped groove 7 is opened at the bottom end inside the fixing frame 4. The bottom end of the moving block 9 is fixedly connected with a T-shaped block 8, and the T-shaped block 8 is slidably connected to the T-shaped groove 7. Start the cylinder 5, control the cylinder 5 to push the moving block 9 to move. At the same time, the moving block 9 slides with the positioning rods 6. At the same time, the lower T-shaped block 8 slides inside the T-shaped groove 7, so that the fixing column 10 drives the upper welding plate 11 to move.

[0024] Reference Figure 3 , the clamping assembly 18 includes a first clamping block 181, a second clamping block 182, a first limiting column 183, a second limiting column 184, a moving hole 185 and a tension spring 186. The upper end of the welding plate 11 is symmetrically and fixedly connected with the first clamping block 181. The first limiting columns 183 are symmetrically embedded inside the first clamping block 181. A moving hole 185 is opened at the upper end of the first limiting column 183. The bottom end inside the moving hole 185 is fixedly connected with the tension spring 186. The other end of the tension spring 186 is fixedly connected with the second limiting column 184. The second limiting column 184 is slidably connected to the moving hole 185. The end of the second limiting column 184 away from the tension spring 186 is fixedly connected with the second clamping block 182. Pull up the second clamping block 182 on one side to make the second clamping block 182 move upward. At the same time, the second limiting column 184 drives the tension spring 186 to stretch. Then place the workpiece above the first clamping block 181. Release the second clamping block 182, and the tension spring 186 resets, driving the second limiting column 184 and the second clamping block 182 to rebound to clamp and fix the workpiece. Similarly, clamp and fix the workpiece on the other side.

[0025] Principle and advantages of use: First, pull up the second clamping block 182 on one side to make the second clamping block 182 move upward. At the same time, the second limiting column 184 drives the tension spring 186 to stretch. Then place the workpiece above the first clamping block 181. Release the second clamping block 182, and the tension spring 186 resets, driving the second limiting column 184 and the second clamping block 182 to rebound to clamp and fix the workpiece. Similarly, clamp and fix the workpiece on the other side and make the two workpieces fit together. Then, start the cylinder 5, control the cylinder 5 to push the moving block 9 to move. At the same time, the moving block 9 slides with the positioning rods 6. At the same time, the lower T-shaped block 8 slides inside the T-shaped groove 7, so that the fixing column 10 drives the upper welding plate 11 to move into the spot welding groove 2. Start the spot welding machine body 1, and the upper and lower spot welding heads 3 perform spot welding on the connection parts at the upper and lower ends of the workpiece.

[0026] The utility model reduces the complexity and uncertainty in the installation process of the welding plate 11, lowers the operation difficulty, makes it easier for users to get started, improves the work efficiency, can also adapt to welding parts of different specifications and types, improves the practicability and utilization rate of the equipment, and at the same time facilitates the users to thoroughly clean the welding plate 11, ensures the cleanliness of the welding plate 11, and improves the welding quality.

Claims

1. A limiting structure of a welding machine, comprising a spot welding machine body (1), characterized in that: A spot welding groove (2) is provided at one end of the spot welding machine body (1), and a spot welding head (3) is symmetrically installed at the upper and lower ends of the spot welding groove (2). A fixed frame (4) is threadedly connected to one end of the spot welding machine body (1) close to the spot welding groove (2), and a moving block (9) is slidably connected inside the fixed frame (4). A fixed column (10) is fixedly connected to the upper end of the moving block (9), and unlocking blocks (16) are symmetrically fixedly connected at both ends of the fixed column (10), and an unlocking component (17) is installed inside the unlocking block (16). A welding plate (11) is installed at the upper end of the fixed column (10), and a connecting block (12) is fixedly connected to the bottom end of the welding plate (11), and a connecting component (14) is symmetrically installed inside the connecting block (12), and a clamping component (18) is symmetrically installed at the upper end of the welding plate (11); The connecting assembly (14) comprises a first accommodating cavity (141), a first return spring (142), a movable plate (143), a locking block (144) and an inclined surface (145); the first accommodating cavity (141) is symmetrically opened inside the connecting block (12); one end of the first accommodating cavity (141) is fixedly connected to the first return spring (142); the other end of the first return spring (142) is fixedly connected to the movable plate (143); the movable plate (143) is slidably connected to the inside of the first accommodating cavity (141); one end of the movable plate (143) away from the first return spring (142) is fixedly connected to the locking block (144); one end of the locking block (144) away from the movable plate (143) extends out of the side end of the connecting block (12); and the bottom end of the locking block (144) is set as an inclined surface (145).

2. A limiting structure for a welding machine according to claim 1, characterized in that: The upper end of the fixing column (10) is provided with a connecting groove (13), the connecting groove (13) and the connecting block (12) are plug-connected, a locking groove (15) is provided inside the connecting groove (13), and the locking groove (15) and the locking block (144) are snap-connected.

3. The limiting structure of a welding machine according to claim 1, characterized in that: The unlocking assembly (17) comprises a built-in hole (171), a second return spring (172), a connecting column (173), a pressing block (174) and a push plate (175); one end of the unlocking block (16) is provided with a built-in hole (171); one end of the built-in hole (171) is fixedly connected to the second return spring (172); the other end of the second return spring (172) is fixedly connected to the pressing block (174); the pressing block (174) and the built-in hole (171) are slidably connected. The push block (174) is connected with a connecting column (173) at one end close to the second return spring (172), and the second return spring (172) is sleeved on the outside of the connecting column (173). The end of the connecting column (173) away from the push block (174) extends into the locking groove (15). The end of the connecting column (173) away from the push block (174) is fixedly connected with a push plate (175), and the push plate (175) is slidably connected to the locking groove (15).

4. The limiting structure of a welding machine according to claim 1, characterized in that: A cylinder (5) is installed at one end inside the fixing frame (4), and the telescopic end of the cylinder (5) is fixedly connected to one end of the fixing column (10).

5. The limiting structure of a welding machine according to claim 1, characterized in that: The two ends of the fixed frame (4) are symmetrically fixedly connected with positioning rods (6), the moving block (9) is sleeved on the outside of the positioning rod (6), and the moving block (9) and the positioning rod (6) are slidably connected.

6. The limiting structure of a welding machine according to claim 1, characterized in that: A T-shaped groove (7) is provided at the bottom end of the fixed frame (4), and a T-shaped block (8) is fixedly connected to the bottom end of the movable block (9), and the T-shaped block (8) and the T-shaped groove (7) are slidably connected.

7. The limiting structure of a welding machine according to claim 1, characterized in that: The clamping assembly (18) comprises a first clamping block (181), a second clamping block (182), a first limiting column (183), a second limiting column (184), a movable hole (185) and a tension spring (186); the upper end of the welding plate (11) is symmetrically fixedly connected with the first clamping block (181); the first limiting column (183) is symmetrically embedded inside the first clamping block (181); the upper end of the first limiting column (183) is provided with a movable hole (185); the bottom end of the movable hole (185) is fixedly connected with a tension spring (186); the other end of the tension spring (186) is fixedly connected with the second limiting column (184); the second limiting column (184) is slidably connected to the movable hole (185); and the end of the second limiting column (184) away from the tension spring (186) is fixedly connected with the second clamping block (182).

Images