Automatic welding device

Abstract

The invention discloses an automatic welding device, relates to the technical field of welding, and aims to solve the problem of poor stability of manual welding. According to the technical scheme, the device is characterized by comprising a rack, a mounting table is fixedly connected to the rack, a first mold used for containing a screw rod is arranged on the top face of the mounting table, a second mold used for installing a workpiece is arranged above the first mold, through holes are formed in the two sides of the rack, a movable plate is slidably connected to the top face of the rack, and the movable plate is arranged on the top face of the rack. The side, close to the mounting table, of the movable plate is fixedly connected with a plurality of supporting rods, the outer sides of the supporting rods are sleeved with first springs, and one ends of the first springs are fixedly connected with the movable plate. The pressing plate is pushed through the piston of the first air cylinder, so that the movable plate and the welding mechanism are pushed to move, when the welding mechanism moves to an infrared sensor, a workpiece can be automatically welded, the welding mechanism replaces manual welding, and the welding stability and the welding efficiency are improved.

Description

Technical Field

[0001] The present invention relates to the field of welding technology, and more particularly to an automatic welding device. Background Art

[0002] During the workpiece processing, it is necessary to weld a screw on the workpiece surface to facilitate the installation between the workpieces. Before welding, a hole is first opened at the part of the workpiece where the screw is to be installed. During the welding process, the screw is manually inserted into the hole and placed on the frame for welding.

[0003] The workpiece is welded manually, and the screw and the workpiece are prone to skew during installation. Therefore, the staff is required to hold the workpiece and the screw with one hand and weld the screw and the workpiece with the other hand. Manual welding generally relies on one's own experience, and the welding time and welding direction are not fixed. Therefore, there are easily discrepancies between the welded workpieces, resulting in uneven quality of the final workpieces and poor stability of the workpieces.

[0004] Therefore, a new solution needs to be proposed to solve this problem. Summary of the invention

[0005] In view of the shortcomings of the prior art, the object of the present invention is to provide an automatic welding device which has the advantages of being able to perform welding at a fixed position and having stable welding quality.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: an automatic welding device, comprising a frame, a mounting table is fixedly connected to the frame, a mold 1 for placing a screw is arranged on the top surface of the mounting table, a mold 2 for mounting a workpiece is arranged above the mold 1, through holes are opened on both sides of the frame, a movable plate is slidably connected to the top surface of the frame, a side of the movable plate close to the mounting table is fixedly connected to a plurality of support rods, a spring 1 is sleeved on the outer side of the support rod, one end of the spring 1 is fixedly connected to the movable plate, and the other end is fixedly connected to the top surface of the frame, the support rod is slidably connected in the through hole, a welding mechanism for welding the workpiece is arranged on the movable plate, a cylinder 1 is fixedly connected to the top of the frame, a pressure plate is fixedly connected to the piston of the cylinder 1, the pressure plate abuts against the top surface of the movable plate, the welding mechanism comprises a plurality of mounting blocks, the mounting block is slidably connected to the movable plate through a connecting piece, a connecting block is rotatably connected to the mounting block through the mounting piece, a welding head is arranged on the connecting block, a mounting groove is opened on the surface of the connecting block, and the welding head is detachably connected in the mounting groove.

[0007] The present invention is further configured as follows: the mold 1 includes a flat plate 1, a plurality of grooves are provided on the top surface of the flat plate 1, a rubber block is fixedly connected in the groove, and a positioning groove for inserting a screw is provided on the top surface of the rubber block.

[0008] The present invention is further configured as follows: the mold 2 includes a flat plate 2 and two clamping plates, the clamping plates are slidably connected to the surface of the flat plate 2 through a bottom plate, a through groove corresponding to the position of the groove is opened on the flat plate 2, a connecting rod is fixedly connected to the mounting platform, the connecting rod passes through the flat plate 1 and the flat plate 2, a spring 2 is sleeved on the outer side of the connecting rod, the upper and lower ends of the spring 2 are respectively abutted against the top surface of the flat plate 1 and the bottom surface of the flat plate 2, a cylinder 2 is fixedly connected to both sides of the mounting platform, the piston of the cylinder 2 is abutted against the top surface of the flat plate 2, and the clamping plates are rotatably connected to the bottom plate through a torsion spring.

[0009] The present invention is further configured as follows: a moving groove is provided on the second flat plate, a moving block is slidably connected in the moving groove, the bottom plate is slidably connected to the moving block, and a fixing rod is threadedly connected to the bottom plate.

[0010] The present invention is further configured as follows: the mounting member includes two mounting plates, a connecting groove is provided on a side of the mounting block close to the connecting block, the two mounting plates are rotatably connected in the connecting groove, the side of the mounting plate close to the connecting block is inclined inward, a push rod is fixedly connected to the connecting block, and an abutment plate is fixedly connected to one end of the push rod away from the connecting block, and the side wall of the abutment plate abuts against the side walls of the two mounting plates.

[0011] The present invention is further configured as follows: the connecting member includes a slide rail, the slide rail is fixedly connected to the movable plate, a screw rod is rotatably connected to the slide rail, the mounting block is arranged on the screw rod, and the mounting block abuts against the surface of the slide rail.

[0012] The present invention is further configured as follows: a plurality of scale grooves are provided on the side wall of the mounting block, a positioning rod is rotatably connected to the side wall of the connecting block, and the inclination angle of the positioning rod is consistent with the inclination angle of the welding head.

[0013] The present invention is further configured as follows: a receiving groove for inserting the spring 2 is provided on the top surface of the plate 1.

[0014] In summary, the present invention has the following beneficial effects: 1. When the cylinder is started, the piston of the cylinder can push the pressure plate, thereby pushing the movable plate and the welding mechanism to move. When the welding mechanism moves to the infrared sensor, the workpiece can be automatically welded. The welding mechanism replaces manual welding, improving the welding stability and welding efficiency; Second, when welding workpieces of different sizes, the screw rod can be rotated to drive the mounting block to slide on the slide rail, thereby realizing the movement of the welding head position, and the connecting block can be rotated with the mounting block through the mounting piece, so that the angle between the welding head and the workpiece can be adjusted after rotating the connecting block, thereby making the welding head have a wider range of uses. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The structure of the present invention is schematically shown Figure 1 ; Figure 2 The structure of the present invention is schematically shown Figure 2 ; Figure 3 The cross-sectional view of the present invention Figure 1 ; Figure 4 for Figure 3 A in the enlarged view; Figure 5 The cross-sectional view of the present invention Figure 2 ; Figure 6 for Figure 5 Enlarged view of point B in .

[0016] In the figure: 1. frame; 2. mounting table; 3. through hole; 4. movable plate; 5. support rod; 6. spring 1; 7. cylinder 1; 8. pressure plate; 9. mounting block; 10. connecting block; 11. welding head; 12. mounting groove; 13. plate 1; 14. groove; 15. rubber block; 16. positioning groove; 17. plate 2; 18. clamping plate; 19. through groove; 20. connecting rod; 21. spring 2; 22. cylinder 2; 23. bottom plate; 24. fixing rod; 25. moving groove; 26. mounting plate; 27. connecting groove; 28. abutting plate; 29. ​​push rod; 30. slide rail; 31. screw rod; 32. receiving groove; 33. moving block; 34. scale groove; 35. positioning rod. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0018] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "top / bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] An automatic welding device, such as Figure 1-Figure 6 As shown, it includes a frame 1, a movable plate 4 is slidably connected to the top surface of the frame 1, and a plurality of support rods 5 are fixedly connected to the side of the movable plate 4 close to the mounting platform 2. A spring 6 is sleeved on the outer side of the support rod 5, one end of the spring 6 is fixedly connected to the movable plate 4, and the other end is fixedly connected to the top surface of the frame 1. The spring 6 is used to prop up the movable plate 4. Through holes 3 are opened on both sides of the frame 1, and the support rods 5 are slidably connected in the through holes 3. A welding mechanism for welding workpieces is arranged on the movable plate 4, a cylinder 7 is fixedly connected to the top of the frame 1, a pressure plate 8 is fixedly connected to the piston of the cylinder 7, and the pressure plate 8 abuts against the top surface of the movable plate 4, an infrared sensor is arranged on the frame 1, and the infrared sensor is connected to the welding mechanism. When the cylinder 7 is started, the piston of the cylinder 7 can push the pressure plate 8, thereby pushing the movable plate 4 and the welding mechanism to move, so that when the welding mechanism moves to the infrared sensor, the workpiece can be automatically welded, and the welding mechanism replaces manual welding, thereby improving the welding stability and welding efficiency.

[0021] like Figure 1-Figure 2 As shown, the welding mechanism includes a plurality of mounting blocks 9, which are slidably connected to the movable plate 4 through a connecting piece, and the connecting piece includes a slide rail 30, and the slide rail 30 is fixedly connected to the movable plate 4. A screw rod 31 is rotatably connected to the slide rail 30, and the screw rod 31 is driven by a motor. The mounting block 9 is arranged on the screw rod 31, and the mounting block 9 abuts against the surface of the slide rail 30. A connecting block 10 is rotatably connected to the mounting block 9 through a mounting piece, and a welding head 11 is arranged on the connecting block 10. A mounting groove 12 is provided on the surface of the connecting block 10, and the welding head 11 is detachably connected to the mounting groove 12. When welding workpieces of different sizes, the screw rod 31 can be rotated to make the screw rod 31 drive the mounting block 9 to slide on the slide rail 30, thereby realizing the movement of the position of the welding head 11, and the connecting block 10 can be rotated with the mounting block 9 through the mounting piece, so that the angle between the welding head 11 and the workpiece can be adjusted after the connecting block 10 is rotated, thereby making the use range of the welding head 11 wider.

[0022] like Figure 3-Figure 4As shown, the mounting member includes two mounting plates 26, a connecting groove 27 is provided on one side of the mounting block 9 close to the connecting block 10, the two mounting plates 26 are rotatably connected in the connecting groove 27, the side of the mounting plate 26 close to the connecting block 10 is inclined inwardly, a push rod 29 is fixedly connected to the connecting block 10, and an abutment plate 28 is fixedly connected to the end of the push rod 29 away from the connecting block 10, and the side wall of the abutment plate 28 abuts against the side walls of the two mounting plates 26. When it is necessary to adjust the angle of the connecting block 10, the connecting block 10 can be pulled first, so that the connecting block 10 drives the push rod 29 and the abutment plate 28 to move out of the connecting groove 27. During the moving out process, the side edge of the abutment plate 28 can push the mounting plate 26, so that the two mounting plates 26 are opened, and when it is rotated to a suitable angle , push the connecting block 10 toward one side of the connecting groove 27, so that the abutment plate 28 moves along the surface of the mounting plate 26, so that the mounting plate 26 can be clamped. This adjustment method realizes the stepless adjustment of the position of the welding head 11, so that people can adjust the welding angle of the welding head 11 according to needs, and the adjustment is convenient. A plurality of scale grooves 34 are provided on the side wall of the mounting block 9, and a positioning rod 35 is rotatably connected to the side wall of the connecting block 10. The inclination angle of the positioning rod 35 is consistent with the inclination angle of the welding head 11. The positioning rod 35 and the scale groove 34 can predict the current angle of the welding head 11. In the subsequent adjustment process, people can restore the angle of the welding head 11 according to the position of the scale, which is convenient for welding multiple positions or workpieces.

[0023] like Figure 1-Figure 6 As shown, a mounting table 2 is fixedly connected to the frame 1, and a mold 1 for placing a screw is arranged on the top surface of the mounting table 2. The mold 1 includes a flat plate 13, and a plurality of grooves 14 are provided on the top surface of the flat plate 13. A rubber block 15 is fixedly connected in the groove 14, and a positioning groove 16 for inserting the screw is provided on the top surface of the rubber block 15. When the screw needs to be welded to the workpiece, the screw is first inserted into the positioning groove 16 from the groove 14, and the rubber block 15 can clamp the screw so that the screw stands on the flat plate 13. For subsequent processing, a mold 2 for mounting the workpiece is arranged above the mold 1. The mold 2 includes a flat plate 17 and two clamping plates 18. A through groove 19 corresponding to the position of the groove 14 is provided on the flat plate 17. During the molding process of the workpiece, holes are generally reserved in advance at the part where the screw needs to be installed. The flat plate 17 is used to place the workpiece, and the screw on the flat plate 13 can pass through the through groove 19 and the holes on the workpiece and be connected to the workpiece, so as to facilitate the welding of the workpiece.

[0024] In one embodiment, a connecting rod 20 is fixedly connected to the mounting platform 2, and the connecting rod 20 passes through the flat plate 13 and the flat plate 2 17. A spring 21 is sleeved on the outer side of the connecting rod 20, and the upper and lower ends of the spring 21 are respectively in contact with the top surface of the flat plate 13 and the bottom surface of the flat plate 2 17. The spring 21 is arranged between the flat plate 13 and the flat plate 2 17, and is used to support the flat plate 13 and the flat plate 2 17, so that there is a space between the flat plate 13 and the flat plate 2 17 for the screw to be placed. The two sides of the mounting platform 2 are fixedly connected with a cylinder 22, and the piston of the cylinder 22 is in contact with the top surface of the flat plate 2 17. The cylinder 22 is used to press the flat plate 13 and the flat plate 2 17, so that the screw passes through the through groove 19. It is connected to the hole on the workpiece. During the downward pressing of the cylinder 22, the screw is restricted by the groove 14 on the plate 13 and the through groove 19 on the plate 2 17, so it is not easy to be skewed, so that the welded screw and the workpiece can be kept vertical, thereby ensuring the welding quality of the workpiece. A receiving groove 32 for inserting the spring 21 is provided on the top surface of the plate 13. During the movement of the plate 2 17 to the plate 1 13, the spring 21 will be squeezed and compressed. The receiving groove 32 is used to place the compressed spring 21, so that the plate 13 and the plate 2 17 can be tightly together, thereby improving the stability of the plate 2 17 and preventing the plate 2 17 from shaking during the welding process.

[0025] Furthermore, the clamping plate 18 is slidably connected to the surface of the second flat plate 17 through the bottom plate 23, and the clamping plate 18 is rotatably connected to the bottom plate 23 through the torsion spring. When the workpiece needs to be clamped, the clamping plate 18 can be rotated to form an angle between the clamping plate 18 and the second flat plate 17. At this time, the torsion spring is deformed, and then the workpiece is placed between the second flat plate 17 and the clamping plate 18, and the clamping plate 18 is loosened, so that the clamping plate 18 clamps the workpiece to prevent the workpiece from rotating during the welding process. The second flat plate 17 A moving groove 25 is opened on it, and a moving block 33 is slidably connected in the moving groove 25. The bottom plate 23 is slidably connected to the moving block 33. A fixing rod 24 is threadedly connected to the bottom plate 23. When the flat plate 17 needs to clamp workpieces of different sizes, the horizontal position of the clamping plate 18 can be adjusted by moving the moving block 33. The bottom plate 23 is slid on the surface of the moving block 33, and the bottom plate 23 can drive the clamping plate 18 to move toward the center of the flat plate 17, so that the clamping plate 18 can clamp smaller workpieces.

[0026] The use of the present invention is as follows: First, select the workpiece to be welded, and place the workpiece on the flat plate 17, place a screw under the corresponding hole of the workpiece, then insert the screw into the positioning groove 16, and then start the cylinder 22, so that the cylinder 22 presses the flat plate 17 downward, and the screw is inserted into the corresponding hole of the workpiece, and then start the cylinder 17, so that the cylinder 17 presses the movable plate 4, so that the movable plate 4 drives the welding head 11 to move downward, and starts welding after moving to a preset position.

[0027] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An automatic welding device, comprising a frame (1), characterized in that: The frame (1) is fixedly connected to a mounting platform (2), a mold 1 for placing a screw is arranged on the top surface of the mounting platform (2), and a mold 2 for mounting a workpiece is arranged above the mold 1. Through holes (3) are provided on both sides of the frame (1), and a movable plate (4) is slidably connected to the top surface of the frame (1). A side of the movable plate (4) close to the mounting platform (2) is fixedly connected to a plurality of support rods (5), and a spring 1 (6) is sleeved on the outer side of the support rod (5), one end of the spring 1 (6) is fixedly connected to the movable plate (4), and the other end is fixedly connected to the top surface of the frame (1), and the support rod (5) is slidably connected in the through hole (3). A welding mechanism for welding workpieces is provided on the movable plate (4); a cylinder (7) is fixedly connected to the top of the frame (1); a pressure plate (8) is fixedly connected to the piston of the cylinder (7); the pressure plate (8) abuts against the top surface of the movable plate (4); the welding mechanism comprises a plurality of mounting blocks (9); the mounting blocks (9) are slidably connected to the movable plate (4) via connecting members; a connecting block (10) is rotatably connected to the mounting block (9) via the mounting members; a welding head (11) is provided on the connecting block (10); a mounting groove (12) is provided on the surface of the connecting block (10); and the welding head (11) is detachably connected to the mounting groove (12).

2. An automatic welding device according to claim 1, characterized in that: The mold one comprises a flat plate one (13), a plurality of grooves (14) are provided on the top surface of the flat plate one (13), a rubber block (15) is fixedly connected in the groove (14), and a positioning groove (16) for inserting a screw is provided on the top surface of the rubber block (15).

3. An automatic welding device according to claim 2, characterized in that: The mold 2 comprises a flat plate 2 (17) and two clamping plates (18). The clamping plates (18) are slidably connected to the surface of the flat plate 2 (17) through a bottom plate (23). The flat plate 2 (17) is provided with a through groove (19) corresponding to the position of the groove (14). A connecting rod (20) is fixedly connected to the mounting platform (2). The connecting rod (20) passes through the flat plate 1 (13) and the flat plate 2 (17). A spring 2 (21) is sleeved on the outer side of the connecting rod (20). The upper and lower ends of the spring 2 (21) are respectively in contact with the top surface of the flat plate 1 (13) and the bottom surface of the flat plate 2 (17). The two sides of the mounting platform (2) are fixedly connected with a cylinder 2 (22). The piston of the cylinder 2 (22) is in contact with the top surface of the flat plate 2 (17). The clamping plates (18) are rotatably connected to the bottom plate (23) through a torsion spring.

4. An automatic welding device according to claim 3, characterized in that: The second plate (17) is provided with a moving groove (25), a moving block (33) is slidably connected in the moving groove (25), the bottom plate (23) is slidably connected to the moving block (33), and a fixing rod (24) is threadedly connected to the bottom plate (23).

5. The automatic welding device according to claim 1, characterized in that: The mounting member comprises two mounting plates (26); a connecting groove (27) is provided on a side of the mounting block (9) close to the connecting block (10); the two mounting plates (26) are rotatably connected in the connecting groove (27); a side of the mounting plate (26) close to the connecting block (10) is inclined inward; a push rod (29) is fixedly connected to the connecting block (10); an end of the push rod (29) away from the connecting block (10) is fixedly connected to an abutment plate (28); a side wall of the abutment plate (28) abuts against side walls of the two mounting plates (26).

6. The automatic welding device according to claim 1, characterized in that: The connecting member comprises a slide rail (30), the slide rail (30) is fixedly connected to the movable plate (4), a screw rod (31) is rotatably connected to the slide rail (30), the mounting block (9) is arranged on the screw rod (31), and the mounting block (9) abuts against the surface of the slide rail (30).

7. The automatic welding device according to claim 1, characterized in that: A plurality of scale grooves (34) are provided on the side wall of the mounting block (9), and a positioning rod (35) is rotatably connected to the side wall of the connecting block (10), wherein the inclination angle of the positioning rod (35) is consistent with the inclination angle of the welding head (11).

8. An automatic welding device according to claim 3, characterized in that: The top surface of the first plate (13) is provided with a receiving groove (32) for inserting the second spring (21).

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