Positioning mechanism for welding machine

Abstract

The utility model relates to the technical field of welding machine auxiliary mechanisms, in particular to a positioning mechanism for a welding machine, which comprises a workbench. A pushing and clamping function plate is further included, a pushing plate is arranged in the middle of the upper end of the workbench, a pushing mechanism for controlling the pushing plate to move front and back is arranged on the workbench, and a first air cylinder is fixedly connected to the upper end of the pushing plate; by additionally arranging the positioning mechanism of the welded thin plate and arranging the pushing mechanism, the clamping mechanism, the distance adjusting mechanism, the rotating seat and the like, the distribution positions in the four pushing and clamping function plates are comprehensively controlled, the thin plates of different sizes are fixedly clamped and pressed on the surface of the main body block, and the angle can be adaptively adjusted; therefore, the thin plate can be accurately positioned on the surface of the main body block conveniently, deviation caused by pushing during welding is avoided, deviation of the welding position is avoided, the overall welding quality between the two plates is improved, and the problem that materials cannot be used due to unqualified welding and waste is caused is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary mechanisms for welding machines, and in particular to a positioning mechanism for welding machines. Background Technology

[0002] A welding machine is a device used to join two or more materials together. It achieves a permanent connection by heating, pressurizing, or a combination of both to bring the material surface to a molten state. Welding machines are widely used in manufacturing, construction, automotive, and aerospace industries. There are many types of welding machines, including arc welding machines and laser welding machines. When welding objects, a positioning mechanism is needed to assist in the welding process.

[0003] Existing positioning mechanisms are mainly used to fix the main body block. Typically, a larger main body block is clamped and positioned on a platform, and then another thin sheet is manually attached to the designated position on the main body block. The other hand holds the welding gun of the welding machine to weld the joint. There are two main ways to weld the thin sheet to the main body block: one is to attach the larger side to the surface of the main body block, and the other is to attach the narrower side to the surface of the main body block. Regardless of the welding method, due to the lack of positioning and fixing of the thin sheet, it is inevitable that the thin sheet will be pushed and misaligned during the welding process, resulting in deviations in the welding position. This affects the overall welding quality between the two plates, and in severe cases, the newly assembled workpiece cannot be used, resulting in material waste.

[0004] Therefore, the existing positioning mechanisms mainly fix the main body blocks but lack positioning and fixing of thin plates. During the welding process, the thin plates are pushed and misaligned, resulting in deviations in the welding position, which affects the overall welding quality between the two plates. In severe cases, the newly spliced ​​workpiece cannot be used, resulting in material waste. Therefore, a positioning mechanism for welding machines can be designed. Utility Model Content

[0005] To overcome the problem that existing positioning mechanisms mainly fix the main body blocks but lack positioning and fixing of thin plates, the thin plates are pushed and misaligned during welding, resulting in deviations in the welding position, affecting the overall welding quality between the two plates, and in severe cases, the newly spliced ​​workpiece cannot be used, causing material waste.

[0006] The technical solution of this utility model is as follows: a positioning mechanism for a welding machine, including a worktable; and a push-clamping functional plate. A push plate is provided at the upper middle part of the worktable, and a push mechanism for controlling the forward and backward movement of the push plate is provided on the worktable. A cylinder is fixedly connected to the upper end of the push plate. An L-shaped bracket is fixedly connected to the output end of the cylinder. An N-shaped frame is fixedly connected to the front part of the L-shaped bracket. A rotating seat is rotatably connected to the inner side of the N-shaped frame through a rotating shaft. A cylinder is fixedly connected to the bottom of the rotating seat. A connecting plate is fixedly connected to the output end of the cylinder. Rectangular frames are symmetrically fixedly connected to the left and right ends of the connecting plate. N-shaped plates are symmetrically arranged on the front and rear sides of the bottom of the two rectangular frames, and a clamping mechanism for controlling the relative movement of the two N-shaped plates is provided on the rectangular frames. Two push-clamping functional plates are symmetrically arranged on the left and right sides of the front end of the two N-shaped plates, and a set of distance adjustment mechanisms for controlling the relative movement of the corresponding two push-clamping functional plates is provided on each of the two N-shaped plates.

[0007] Preferably, the larger main body block is first placed on the upper front side of the worktable and fixed. Then, the thin plate to be welded is positioned. If the thin plate has a narrow side that needs to be welded close together, the appropriate distance between the two push-clamp functional plates in each group is adjusted according to the size of the thin plate using the distance adjustment mechanism. Then, the clamping mechanism is used to control the two N-shaped plates to move closer to each other, and the thin plate is clamped and fixed using the two sets of push-clamp functional plates. The cylinder is activated to adjust the height of the L-shaped bracket, and the position of the push plate is adjusted by the push mechanism. Depending on whether the upper welding surface of the fixed main body block is horizontal or has a certain tilt angle, the rotating seat is controlled to advance. Rotate the cylinder to adjust the angle of the fixed thin plate to be perpendicular to the end face of the main block. Finally, start cylinder two to push the thin plate onto the surface of the main block for welding. If the thin plate is a large surface that needs to be welded, first adjust the appropriate distance between the two push-clamp functional plates in each group according to the size of the thin plate, and use the clamping mechanism to adjust the distance between the two groups of push-clamp functional plates. Then, attach the thin plate to the surface of the main block and make comprehensive adjustments so that each push-clamp functional plate is perpendicular to the surface of the thin plate. Finally, start cylinder two to press each push-clamp functional plate onto the surface of the thin plate for fixation, and proceed to the next welding step.

[0008] Preferably, the propulsion mechanism includes a propulsion motor, a threaded rod, and a propulsion block; a through slot is provided at the upper end of the worktable, the propulsion motor is fixedly connected to the front wall of the through slot, the output shaft of the propulsion motor is fixedly connected to the threaded rod, the end of the threaded rod away from the propulsion motor is rotatably connected to the rear wall of the through slot, the outer side of the threaded rod is threadedly connected to the propulsion block, and the upper end of the propulsion block extends out of the through slot and is fixedly connected to the bottom of the propulsion plate.

[0009] Preferably, the clamping mechanism includes a bidirectional screw, a movable block, and a knob; the bidirectional screw is rotatably connected inside the right rectangular frame, and movable blocks are symmetrically threaded to the outer sides of both ends of the bidirectional screw. The two movable blocks are fixedly connected to the right side of the two N-plates respectively. The knob is rotatably connected to the front end of the right rectangular frame, and the knob is fixedly connected to the bidirectional screw via a rotating shaft.

[0010] Preferably, each distance adjustment mechanism includes a bidirectional screw, a movable block, and a knob; the inner side of the N-shaped plate is rotatably connected to the bidirectional screw, and the two ends of the bidirectional screw are symmetrically threaded to the movable blocks; the two movable blocks are fixedly connected to the corresponding two push clamp function plates; and the right end of the N-shaped plate is rotatably connected to the knob.

[0011] Preferably, a rotary motor is rotatably connected to the right end of the N-shaped frame, and the output shaft of the rotary motor is fixedly connected to the rotating shaft of the rotating seat.

[0012] Preferably, a guide rod is rotatably connected inside the left rectangular frame, and guide blocks are symmetrically and movably sleeved on the outer sides of both ends of the guide rod. The two guide blocks are respectively fixedly connected to the left side of the two N-shaped plates.

[0013] Preferably, a through slot 2 is provided on the upper front side of the workbench, and movable blocks are movably arranged on the left and right ends of the inner side of the through slot 2. The upper ends of the two movable blocks pass through the through slot 2 and are fixedly connected to clamps.

[0014] Preferably, a bidirectional screw three is rotatably connected inside the slot two, and two movable blocks are symmetrically threaded to the outer ends of the bidirectional screw three. A clamping motor is fixedly connected to the right end of the worktable, and the output shaft of the clamping motor is fixedly connected to the bidirectional screw three.

[0015] The beneficial effects of this utility model are:

[0016] The device, based on the existing mechanism for positioning the main body block, also adds a mechanism for positioning the thin plates to be welded. By setting up a pushing mechanism, a clamping mechanism, a distance adjustment mechanism, and a rotating seat, it comprehensively controls the relative distance between the two sets of push-clamping functional plates, as well as the relative distance between the two push-clamping functional plates in each set. This allows for comprehensive adjustment of the distribution position within the four push-clamping functional plates, enabling the fixed clamping of thin plates of different sizes and pressing and fixing the thin plates against the surface of the main body block. Even if the upper surface of the main body block is inclined, it can be freely adjusted, facilitating accurate positioning of the thin plates on the surface of the main body block. This avoids displacement due to pushing during welding, ensuring no deviation in the welding position, improving the overall welding quality between the two plates, and reducing the waste caused by unusable materials due to substandard welding. Attached Figure Description

[0017] Figure 1 The diagram shown is a three-dimensional structural schematic of the present invention.

[0018] Figure 2 The diagram shown is a partial three-dimensional structural schematic of this utility model;

[0019] Figure 3 The diagram shown illustrates the installation structure of the connecting plate of this utility model. Figure 1 ;

[0020] Figure 4 The diagram shown illustrates the installation structure of the connecting plate of this utility model. Figure 2 ;

[0021] Figure 5 The diagram shown is a three-dimensional structural schematic of the clamping plate of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Workbench; 2. Push plate; 3. Cylinder 1; 4. L-shaped bracket; 5. N-shaped bracket; 6. Rotating seat; 7. Cylinder 2; 8. Connecting plate; 9. Rectangular frame; 10. N-shaped plate; 11. Push clamping function plate; 1201. Push motor; 1202. Threaded rod 1; 1203. Push block; 1301. Bidirectional screw 1; 1302. Moving block 1; 1303. Knob 1; 1401. Bidirectional screw 2; 1402. Moving block 2; 1403. Knob 2; 15. Through slot 1; 16. Rotary motor; 17. Guide rod; 18. Guide block; 19. Through slot 2; 20. Movable block; 21. Clamping plate; 22. Bidirectional screw 3; 23. Clamping motor. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please see Figures 1-5This utility model provides an embodiment: a positioning mechanism for a welding machine, including a worktable 1; and a push-clamp function plate 11. A push plate 2 is provided at the upper middle part of the worktable 1, and a push mechanism for controlling the forward and backward movement of the push plate 2 is provided on the worktable 1. A cylinder 3 is fixedly connected to the upper end of the push plate 2, and an L-shaped bracket 4 is fixedly connected to the output end of the cylinder 3. An N-shaped bracket 5 is fixedly connected to the front part of the L-shaped bracket 4. A rotating seat 6 is rotatably connected to the inner side of the N-shaped bracket 5 through a rotating shaft. A cylinder 7 is fixedly connected to the bottom of the rotating seat 6, and a connecting rod is fixedly connected to the output end of the cylinder 7. The connecting plate 8 has rectangular frames 9 symmetrically fixed to its left and right ends. N-shaped plates 10 are symmetrically arranged on the front and back sides of the bottom of the two rectangular frames 9. Clamping mechanisms controlling the relative movement of the two N-shaped plates 10 are provided on the rectangular frames 9. Two push-clamping functional plates 11 are symmetrically arranged on the left and right sides of the front end of each of the two N-shaped plates 10. Each of the two N-shaped plates 10 has a set of distance adjustment mechanisms controlling the relative movement of the corresponding two push-clamping functional plates 11. First, the larger main body block is placed on the upper front side of the workbench 1 and fixed. Then, the thin plate to be welded is positioned. If the thin... If the sheet metal has a narrow side that needs to be welded, first, based on the size of the sheet metal, adjust the appropriate distance between the two push-clamp function plates 11 in each group using the distance adjustment mechanism. Then, use the clamping mechanism to control the two N-shaped plates 10 to move closer to each other, and use the two sets of push-clamp function plates 11 to clamp and fix the sheet metal. Start cylinder 3 to adjust the height of L-shaped bracket 4, and adjust the position of push plate 2 through the push mechanism. Depending on whether the upper welding surface of the fixed main block is horizontal or has a certain tilt angle, control the rotating seat 6 to rotate, and adjust the angle of the fixed sheet metal to be perpendicular to the end face of the main block. Finally, cylinder 7 is activated to push the thin sheet onto the surface of the main block, and then welding is performed. If the thin sheet is a large surface that needs to be welded, the appropriate distance between the two push-clamp function plates 11 in each group is adjusted according to the size of the thin sheet. The distance between the two groups of push-clamp function plates 11 is then adjusted using the clamping mechanism. The thin sheet is then attached to the surface of the main block, and the push-clamp function plates 11 are adjusted to be perpendicular to the surface of the thin sheet. Finally, cylinder 7 is activated to press the push-clamp function plates 11 onto the surface of the thin sheet for fixation, and then welding is performed.

[0025] Please see Figures 1-4In this embodiment, the propulsion mechanism includes a propulsion motor 1201, a threaded rod 1202, and a propulsion block 1203. A through-slot 15 is provided at the upper end of the worktable 1. The propulsion motor 1201 is fixedly connected to the front wall of the through-slot 15. The threaded rod 1202 is fixedly connected to the output shaft of the propulsion motor 1201. One end of the threaded rod 1202 away from the propulsion motor 1201 is rotatably connected to the rear wall of the through-slot 15. The propulsion block 1203 is threadedly connected to the outer side of the threaded rod 1202. The upper end of the propulsion block 1203 extends out of the through-slot 15 and is fixedly connected to the bottom of the propulsion plate 2. The propulsion mechanism is activated upon starting the propulsion mechanism. The motor 1201 drives the threaded rod 1202 to rotate, and the threaded rod 1202 pushes the push block 1203 to move back and forth, thereby adjusting the front and rear position of the push plate 2. The clamping mechanism includes a bidirectional screw 1301, a moving block 1302, and a knob 1303. The bidirectional screw 1301 is rotatably connected inside the right rectangular frame 9. The two ends of the bidirectional screw 1301 are symmetrically threaded with moving blocks 1302. The two moving blocks 1302 are fixedly connected to the right side of the two N-shaped plates 10 respectively. The front end of the right rectangular frame 9 is rotatably connected with a knob 1303. The knob 1303 is open to the airflow. The rotating shaft is fixedly connected to the bidirectional screw 1301. Rotating the knob 1303 drives the bidirectional screw 1301 to rotate, which in turn drives the two moving blocks 1302 to move relative to each other, thereby adjusting the relative distance between the two N-plates 10. Each distance adjustment mechanism includes a bidirectional screw 1401, a moving block 1402, and a knob 1403. The inner side of the N-plate 10 is rotatably connected to the bidirectional screw 1401, and the two ends of the bidirectional screw 1401 are symmetrically threaded to the outer sides of the two moving blocks 1402. The two moving blocks 1402 are respectively connected to the two corresponding push clamp function plates 11. A knob 1403 is rotatably connected to the right end of the N-shaped plate 10. The knob 1403 is fixedly connected to the bidirectional screw 1401 via a rotating shaft. Rotating the knob 1403 drives the bidirectional screw 1401 to rotate, which in turn drives the two moving blocks 1402 to move relative to each other, thereby adjusting the relative distance between the two push clamp function plates 11. A rotary motor 16 is rotatably connected to the right end of the N-shaped frame 5. The output shaft of the rotary motor 16 is fixedly connected to the rotating shaft of the rotating seat 6. Starting the rotary motor 16 drives the rotating seat 6 to rotate, thereby adjusting the rotation and tilt of the cylinder 7 and the connecting plate 8 by a certain angle.

[0026] Please see Figure 1 and Figures 3-5In this embodiment, a guide rod 17 is rotatably connected inside the left rectangular frame 9. Guide blocks 18 are symmetrically and movably sleeved on the outer sides of both ends of the guide rod 17. The two guide blocks 18 are fixedly connected to the left sides of the two N-shaped plates 10, respectively. The two guide blocks 18 slide on the outer sides of the guide rod 17, providing stable guidance for the relative movement of the two N-shaped plates 10. A through slot 19 is provided on the upper front side of the workbench 1. Movable blocks 20 are movably arranged on the left and right ends of the inner side of the through slot 19. The upper ends of the two movable blocks 20 extend out of the through slot 19 and are fixedly connected to clamping plates 21. The two movable blocks 20 are controlled to move closer to each other, thereby further adjusting the two clamping plates 21 to move closer to each other, positioning and clamping the main block placed on the workbench 1. A bidirectional screw 3 22 is rotatably connected inside the slot 2 19. The two movable blocks 20 are symmetrically threaded to the outer ends of the two bidirectional screw 3 22. A clamping motor 23 is fixedly connected to the right end of the workbench 1. The output shaft of the clamping motor 23 is fixedly connected to the bidirectional screw 3 22. When the clamping motor 23 is started, it drives the bidirectional screw 3 22 to rotate, and the bidirectional screw 3 22 drives the two movable blocks 20 to move relative to each other.

[0027] During operation, the larger main block is first placed on the upper front side of the worktable 1. The clamping motor 23 is started, driving the bidirectional screw 22 to rotate. The bidirectional screw 22 drives the two movable blocks 20 to move closer together, further driving the two clamping plates 21 to move closer together, thus positioning and clamping the main block placed on the worktable 1. Then, the thin plate to be welded is positioned. If the thin plate has a narrow side that needs to be welded close together, the distance adjustment mechanism is used to rotate the knob 2 according to the size of the thin plate. 1403 drives the bidirectional screw 1401 to rotate, which in turn drives the two moving blocks 1402 to move relative to each other, thereby adjusting the appropriate distance between the two push-clamp function plates 11 in each group. Then, using the clamping mechanism, rotating the knob 1303 drives the bidirectional screw 1301 to rotate, which in turn drives the two moving blocks 1302 to move relative to each other, controlling the two N-shaped plates 10 to move closer to each other. The two sets of push-clamp function plates 11 are used to clamp and fix the thin plate. The cylinder 1 is then activated. 3. Adjust the height of the L-shaped bracket 4. Through the propulsion mechanism, start the propulsion motor 1201 to drive the threaded rod 1202 to rotate. The threaded rod 1202 pushes the propulsion block 1203 to move back and forth, thereby adjusting the front and back position of the propulsion plate 2. Depending on whether the upper welding surface of the fixed main block is horizontal or has a certain tilt angle, control the rotating seat 6 to rotate, adjust the angle of the fixed thin plate to be perpendicular to the end face of the main block, and finally start the cylinder 7 to push the thin plate onto the surface of the main block for welding. If the thin plate is a large surface that needs to be welded, first adjust the appropriate distance between the two push clamping functional plates 11 in each group according to the size of the thin plate, and use the clamping mechanism to adjust the distance between the two groups of push clamping functional plates 11. Then, attach the thin plate to the surface of the main block, and make comprehensive adjustments so that each push clamping functional plate 11 is perpendicular to the surface of the thin plate. Finally, start the cylinder 7 to press each push clamping functional plate 11 onto the surface of the thin plate for fixation, and proceed to the next welding step.

[0028] Through the above steps, the device, based on the original mechanism for positioning the main body block, also adds a mechanism for positioning the thin plates to be welded. By setting up a pushing mechanism, a clamping mechanism, a distance adjustment mechanism, and a rotating seat 6, the relative distance between the two sets of push-clamping functional plates 11, as well as the relative distance between the two push-clamping functional plates 11 in each set, is comprehensively controlled. This allows for comprehensive adjustment of the distribution positions within the four push-clamping functional plates 11, enabling the fixed clamping of thin plates of different sizes and pressing and fixing the thin plates against the surface of the main body block. Even if the upper surface of the main body block is inclined, it can still... The adjustment mechanism facilitates accurate positioning of the thin sheet metal onto the surface of the main block, preventing misalignment due to pushing during welding. This ensures a consistent welding position, improves the overall welding quality between the two plates, and reduces material waste caused by substandard welding. It addresses the issue that existing positioning mechanisms primarily fix the main block but lack the ability to position and fix the thin sheet metal. During welding, the thin sheet metal can be pushed and misaligned, leading to welding position deviations that affect the overall welding quality. In severe cases, newly assembled parts may become unusable, resulting in material waste.

Claims

1. A positioning mechanism for a welding machine, comprising a worktable (1); characterized in that: It also includes a push clamp function plate (11), a push plate (2) is provided at the middle of the upper end of the worktable (1), and a push mechanism for controlling the forward and backward movement of the push plate (2) is provided on the worktable (1). A cylinder (3) is fixedly connected to the upper end of the push plate (2), an L-shaped bracket (4) is fixedly connected to the output end of the cylinder (3), an N-shaped frame (5) is fixedly connected to the front of the L-shaped bracket (4), a rotating seat (6) is rotatably connected to the inner side of the N-shaped frame (5) through a rotating shaft, and a cylinder (7) is fixedly connected to the bottom of the rotating seat (6). 7) The output end is fixedly connected to a connecting plate (8). Rectangular frames (9) are symmetrically fixedly connected to the left and right ends of the connecting plate (8). N-shaped plates (10) are symmetrically arranged on the bottom front and back sides of the two rectangular frames (9). A clamping mechanism for controlling the relative movement of the two N-shaped plates (10) is provided on the rectangular frame (9). Two push clamping function plates (11) are symmetrically arranged on the left and right sides of the front end of the two N-shaped plates (10). A distance adjustment mechanism for controlling the relative movement of the corresponding two push clamping function plates (11) is provided on each of the two N-shaped plates (10).

2. The positioning mechanism for a welding machine according to claim 1, characterized in that: The propulsion mechanism includes a propulsion motor (1201), a threaded rod (1202), and a propulsion block (1203). The upper end of the worktable (1) is provided with a through slot (15). The propulsion motor (1201) is fixedly connected to the front wall of the through slot (15). The output shaft of the propulsion motor (1201) is fixedly connected to the threaded rod (1202). The end of the threaded rod (1202) away from the propulsion motor (1201) is rotatably connected to the rear wall of the through slot (15). The outer side of the threaded rod (1202) is threadedly connected to the propulsion block (1203). The upper end of the propulsion block (1203) passes through the through slot (15) and is fixedly connected to the bottom of the propulsion plate (2).

3. The positioning mechanism for a welding machine according to claim 1, characterized in that: The clamping mechanism includes a bidirectional screw (1301), a moving block (1302), and a knob (1303). The bidirectional screw (1301) is rotatably connected inside the right rectangular frame (9). The moving blocks (1302) are symmetrically threaded to the outer sides of both ends of the bidirectional screw (1301). The two moving blocks (1302) are fixedly connected to the right side of the two N-plates (10) respectively. The knob (1303) is rotatably connected to the front end of the right rectangular frame (9). The knob (1303) is fixedly connected to the bidirectional screw (1301) through a rotating shaft.

4. The positioning mechanism for a welding machine according to claim 1, characterized in that: Each distance adjustment mechanism includes a bidirectional screw two (1401), a moving block two (1402), and a knob two (1403); the inner side of the N-shaped plate (10) is rotatably connected to the bidirectional screw two (1401), and the two ends of the bidirectional screw two (1401) are symmetrically threaded to the outer sides of the two moving blocks two (1402). The two moving blocks two (1402) are fixedly connected to the corresponding two push clamp function plates (11) respectively. The right end of the N-shaped plate (10) is rotatably connected to the knob two (1403), and the knob two (1403) is fixedly connected to the bidirectional screw two (1401) through a rotating shaft.

5. A positioning mechanism for a welding machine according to claim 1, characterized in that: The right end of the N-frame (5) is rotatably connected to a rotary motor (16), and the output shaft of the rotary motor (16) is fixedly connected to the rotating shaft of the rotating seat (6).

6. A positioning mechanism for a welding machine according to claim 1, characterized in that: The left rectangular frame (9) is rotatably connected to a guide rod (17), and guide blocks (18) are symmetrically and movably sleeved on the outer sides of both ends of the guide rod (17). The two guide blocks (18) are fixedly connected to the left side of the two N-shaped plates (10) respectively.

7. A positioning mechanism for a welding machine according to claim 1, characterized in that: The upper front side of the workbench (1) is provided with a through groove 2 (19), and movable blocks (20) are movably arranged on the left and right ends of the inner side of the through groove 2 (19). The upper ends of the two movable blocks (20) pass through the through groove 2 (19) and are fixedly connected with clamps (21).

8. A positioning mechanism for a welding machine according to claim 7, characterized in that: A bidirectional screw three (22) is rotatably connected inside the slot two (19). Two movable blocks (20) are symmetrically threaded to the outer sides of the two ends of the bidirectional screw three (22). A clamping motor (23) is fixedly connected to the right end of the worktable (1). The output shaft of the clamping motor (23) is fixedly connected to the bidirectional screw three (22).

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