A hardware part welding and processing device

Abstract

The present invention relates to the technical field of welding processing equipment, and discloses a hardware part welding processing equipment, which includes a handle, a gun head arranged on the handle, a stud placement opening arranged on the gun head, and a control switch arranged on the handle. A first auxiliary component is arranged on the gun head, and the function of the first auxiliary component is to make the stud placement opening perpendicular to the surface of the curved workpiece. There are two first auxiliary components, and the two first auxiliary components are symmetrically distributed on both sides of the stud placement opening. For this hardware part welding processing equipment, when welding on the surface of a workpiece with a complex or irregular shape (such as a curved surface part), it can make the stud placement opening perpendicular to the surface of the curved surface part, ensure that the stud remains perpendicular during the welding process, and meet the welding requirements of high precision and high quality.

Description

Technical Field

[0001] The present invention relates to the technical field of welding processing equipment, and particularly to a hardware part welding processing equipment. Background Art

[0002] In the hardware processing and manufacturing industries, stud welding is an important process for welding studs or bolts to the surfaces of various workpieces. As a key equipment to realize this process, stud welders are widely used in industries such as construction, automotive, shipbuilding, and household appliances.

[0003] Refer to Figure 1 , in the traditional stud welder design, usually three positioning posts 5 are arranged around the stud placement opening 3. During use, first, the workpiece is placed on the workbench and fixed to ensure that it does not move during the welding process. Then, the ground wire clamp is clamped on the workpiece to ensure that the welding current loop can be formed smoothly. Next, the stud is placed at the center position of the gun head 2. The gun head 2 is usually designed with a groove or hole for placing the stud. The three positioning posts 5 surround the stud to ensure that the stud remains vertical during the welding process and prevent any position deviation. The operator holds the welding gun handle 1 and aligns the gun head 2 with the welding point of the workpiece. A current loop is formed between the ground wire clamp and the gun head 2. The arc is started. The high temperature of the arc quickly melts a small part of the metal at the bottom of the stud and the surface of the workpiece to form a welding joint. After the arc disappears, the melted metal quickly cools and solidifies to form a strong welding joint. The operator moves the welding gun away.

[0004] The prior art has the following defects:

[0005] Although the existing stud welders have three positioning posts to ensure that the stud remains vertical during the welding process on the surface of flat workpieces, when welding on the surface of workpieces with complex or irregular shapes (such as curved surface parts), since the three positioning posts usually cannot contact the surface of the curved surface part at the same time, there is no way to ensure that the stud can be perpendicular to the surface of the curved surface part. Therefore, due to inaccurate positioning, when welding on the surface of the curved surface part, the welding angle is likely to be not perpendicular, resulting in insufficient strength of the welding point and unstable welding quality, thereby affecting the overall performance and service life of the workpiece. Summary of the Invention

[0006] In view of the problem that the positioning structure of the existing stud welder in the prior art is mainly applicable to flat or regular-shaped workpieces, and for workpieces with complex or irregular shapes (such as curved surface parts), the traditional three-positioning-post structure cannot be effectively adapted, a hardware part welding processing equipment is proposed.

[0007] The present application provides a welding processing device for hardware parts, and its purpose is to enable the stud to remain accurately perpendicular when welding on the surface of workpieces with complex or irregular shapes (such as curved surface parts), so as to meet the welding requirements of high precision and high quality.

[0008] The technical solution of the present invention is: a welding processing device for hardware parts, including a handle, a gun head arranged on the handle, a stud placement port arranged on the gun head, and a control switch arranged on the handle. A first auxiliary component is arranged on the gun head, and the function of the first auxiliary component is to make the stud placement port perpendicular to the surface of the curved surface workpiece. There are two first auxiliary components, and the two first auxiliary components are symmetrically distributed on both sides of the stud placement port; the first auxiliary component includes a fixed cylinder arranged on the side of the gun head close to the stud placement port, a sliding cylinder arranged inside the fixed cylinder, a movable plate arranged at the end of the sliding cylinder, a first mounting rod arranged on the outer wall of the movable plate, a first pulley arranged at the end of the first mounting rod away from the sliding cylinder, a cavity opened inside the sliding cylinder, a second clamping plate arranged at the end of the first mounting rod away from the first pulley, a second mounting rod arranged on the outer wall of the movable plate, a second pulley arranged at the end of the second mounting rod away from the sliding cylinder, and a first clamping plate arranged at the end of the second mounting rod away from the second pulley. And the second clamping plate is located inside the cavity. There are multiple second mounting rods, and the multiple second mounting rods are symmetrically distributed on both sides of the first mounting rod. The number of second pulleys corresponds to the number of second mounting rods.

[0009] Furthermore, the first auxiliary component further includes a second shoulder arranged on the rod wall of the first mounting rod, a second guiding block arranged on the rod wall of the first mounting rod, a second elastic member arranged on the rod wall of the first mounting rod, a first shoulder arranged on the rod wall of the second mounting rod, a first guiding block arranged on the rod wall of the second mounting rod, and a first elastic member arranged on the rod wall of the second mounting rod. One end of the second elastic member is fixedly connected to the outer wall of the second shoulder, the other end of the second elastic member is fixedly connected to the outer wall of the movable plate, one end of the first elastic member is fixedly connected to the outer wall of the first shoulder, and the other end of the first elastic member is fixedly connected to the outer wall of the movable plate.

[0010] Furthermore, the first auxiliary component further includes a first stopping piece arranged on the side of the movable plate close to the first pulley, a first connecting rod arranged on the side of the first stopping piece away from the first pulley, a first through groove opened on the outer wall of the movable plate for the first connecting rod to slide, a second stopping piece arranged on the side of the movable plate close to the second pulley, a second connecting rod arranged on the side of the second stopping piece away from the second pulley, a second through groove opened on the outer wall of the movable plate for the second connecting rod to slide, and a fixing plate arranged at the end of the fixed cylinder close to the sliding cylinder. And one side of the fixing plate close to the movable plate is fixedly connected to the end of the first connecting rod away from the first stopping piece, and one side of the fixing plate close to the movable plate is fixedly connected to the end of the second connecting rod away from the second stopping piece.

[0011] Further, one side of the first stopping piece close to the first pulley is adapted to the outer wall of the first pulley, and one side of the second stopping piece close to the second pulley is adapted to the outer wall of the second pulley.

[0012] Further, the first auxiliary component further includes a through hole formed in the rod wall of the sliding cylinder, and a limiting rod arranged inside the through hole for restricting the sliding of the sliding cylinder.

[0013] Further, the first auxiliary component further includes a mounting plate arranged at one end of the limiting rod, an extrusion groove formed in the outer wall of the mounting plate, a wedge block arranged on the side of the second clamping plate away from the first mounting rod for extruding the extrusion groove, and an arc-shaped elastic sheet arranged on the side of the mounting plate away from the limiting rod. One end of the arc-shaped elastic sheet away from the mounting plate is fixedly connected to the inner wall of the sliding cylinder. There are two arc-shaped elastic sheets, and the two arc-shaped elastic sheets are symmetrically arranged.

[0014] Further, a third elastic member is arranged inside the fixed cylinder. One end of the third elastic member is fixedly connected to the end of the sliding cylinder away from the movable plate, and the other end of the third elastic member is fixedly connected to the inner wall of the fixed cylinder.

[0015] Further, a second auxiliary component is arranged on the gun head, and the function of the second auxiliary component is to assist the stud placement opening to be perpendicular to the surface of the flat workpiece.

[0016] Further, the second auxiliary component includes a fixed seat arranged on one side of the gun head close to the stud placement opening, a rotating rod arranged inside the fixed seat, and a telescopic rod arranged inside the rotating rod. The sliding range of the telescopic rod is the same as the sliding range of the first pulley.

[0017] Advantages of the present invention:

[0018] When welding on the surface of a curved workpiece, by controlling the installation directions of the two first auxiliary components and the stud placement opening to be parallel to the axis direction of the curved workpiece, and making the outer walls of the first pulleys of the two first auxiliary components and the outer walls of the multiple second pulleys fit the surface of the curved workpiece, it can be ensured that the stud placement opening is perpendicular to the surface of the curved workpiece, which can ensure that the stud remains perpendicular during the welding process, thereby improving the welding accuracy. And when the stud is perpendicular to the surface of the curved workpiece, the contact area of the welding point is the largest, and the bonding effect of the molten metal is the best, thereby enhancing the welding strength. Vertical welding avoids the problems of stress concentration and strength reduction at the welding point caused by angle deviation.

[0019] In the welding preparation stage, first make the outer walls of the first pulley and the multiple second pulleys all contact the surface of the curved workpiece until the second elastic member is almost completely compressed. At this time, the operator can also slide the welding gun to drive the first pulley and the multiple second pulleys to slide on the surface of the curved workpiece, flexibly adjusting the stud welding position, further improving the convenience of using this device.

[0020] During the welding preparation stage, by controlling the limiting rod to extend out of the through hole, the sliding cylinder cannot be retracted into the interior of the fixed cylinder, effectively avoiding the accidental contact between the first stopping piece and the first pulley during the welding preparation process, which affects the normal rotation of the first pulley and further improves the convenience for the operator to adjust the welding position.

[0021] When welding on the surface of a flat workpiece is required, through the provided second auxiliary component, the first pulley and multiple second pulleys do not need to slide on the surface of the flat workpiece, but can directly stand on the surface of the flat workpiece, further expanding the application range of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a three-dimensional view of the prior art;

[0023] Figure 2 is a three-dimensional view of the present invention;

[0024] Figure 3 is an installation schematic diagram of the first auxiliary component in the present invention;

[0025] Figure 4 is an installation schematic diagram of the second pulley in the present invention;

[0026] Figure 5 is an installation schematic diagram of the first clamping plate in the present invention;

[0027] Figure 6 is a three-dimensional view of the first stopping piece in the present invention;

[0028] Figure 7 is a side view of the gun head in the present invention;

[0029] Figure 8 of the present invention Figure 7 is an enlarged schematic diagram at position A;

[0030] Figure 9 is an internal schematic diagram of the sliding cylinder in the present invention;

[0031] Figure 10 is a three-dimensional view of the mounting plate in the present invention.

[0032] In the figure:

[0033] 1. Handle; 2. Gun head; 3. Stud placement opening; 4. Control switch; 5. Positioning post; 6. First auxiliary component; 7. Second auxiliary component; 8. Fixed cylinder; 9. Sliding cylinder; 10. Movable plate; 11. First mounting rod; 12. First pulley; 13. Second mounting rod; 14. Second pulley; 15. First clamping plate; 16. First shoulder; 17. First guiding block; 18. First elastic member; 19. Second shoulder; 20. Second guiding block; 21. Second elastic member; 22. Cavity; 23. Second clamping plate; 24. First stopping piece; 25. First connecting rod; 26. Second stopping piece; 27. Second connecting rod; 28. Fixed plate; 29. First through groove; 30. Second through groove; 31. Through hole; 32. Limiting rod; 33. Mounting plate; 34. Extrusion groove; 35. Arc-shaped elastic piece; 36. Wedge block; 37. Fixed seat; 38. Rotating rod; 39. Telescopic rod; 40. Third elastic member. Detailed implementation manners

[0034] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following provides a detailed description of the specific implementation manners of the present invention with reference to the accompanying drawings of the specification.

[0035] Example 1. Refer to Figures 1 - 10 , which is the first embodiment of the present invention, and provides a hardware part welding and processing device, including a handle 1, a gun head 2 provided on the handle 1, a stud placement opening 3 provided on the gun head 2, and a control switch 4 provided on the handle 1. A first auxiliary component 6 is provided on the gun head 2, and the function of the first auxiliary component 6 is to make the stud placement opening 3 perpendicular to the surface of the curved workpiece.

[0036] Specifically, when using this device, first place the workpiece on the workbench and fix it to ensure that it does not move during the welding process. Then clamp the ground wire clip on the workpiece to ensure that the welding current loop can be smoothly formed. Then place the stud in the stud placement opening 3. The operator holds the welding gun handle 1 and aligns the gun head 2 with the welding point of the workpiece. A current loop is formed between the ground wire clip and the gun head 2. By pressing the control switch 4, the arc can be started, and the high temperature of the arc quickly melts a small part of the metal at the bottom of the stud and the surface of the workpiece to form a welding joint. Among them, the handle 1 can be connected to a welding machine case (not shown in the figure), and the welding machine case is connected to the ground wire clip (not shown in the figure). The handle 1, the gun head 2, the stud placement opening 3, the control switch 4, the welding machine case, and the ground wire clip are mature welding devices, and will not be elaborated here.

[0037] By controlling the perpendicularity of the stud placement opening 3 to the surface of the curved workpiece, it can ensure that the stud remains perpendicular during the welding process, thereby improving the welding accuracy. Moreover, when the stud is perpendicular to the surface of the curved workpiece, the contact area of the welding point is the largest, and the bonding effect of the molten metal is the best, thus enhancing the welding strength. Vertical welding avoids the problems of stress concentration and strength reduction at the welding point caused by angle deviation.

[0038] Refer to Figures 1 - 5 , there are two first auxiliary components 6, and the two first auxiliary components 6 are symmetrically distributed on both sides of the stud placement opening 3. The first auxiliary component 6 includes a fixed cylinder 8 fixedly installed on the side of the gun head 2 close to the stud placement opening 3, a sliding cylinder 9 elastically installed inside the fixed cylinder 8, a movable plate 10 fixedly installed at the end of the sliding cylinder 9, a first mounting rod 11 slidably installed on the outer wall of the movable plate 10, a first pulley 12 rotatably installed at the end of the first mounting rod 11 away from the sliding cylinder 9, a cavity 22 opened inside the sliding cylinder 9, a second clamping plate 23 fixedly installed at the end of the first mounting rod 11 away from the first pulley 12, a second mounting rod 13 slidably installed on the outer wall of the movable plate 10, a second pulley 14 rotatably installed at the end of the second mounting rod 13 away from the sliding cylinder 9, and a first clamping plate 15 fixedly installed at the end of the second mounting rod 13 away from the second pulley 14. And the second clamping plate 23 is located inside the cavity 22. There are multiple second mounting rods 13, and the multiple second mounting rods 13 are symmetrically distributed on both sides of the first mounting rod 11. The number of the second pulleys 14 corresponds to the number of the second mounting rods 13.

[0039] Specifically, the fixed cylinder 8 can slide inside the sliding cylinder 9. The first mounting rod 11 provides a sliding and installation space for the first pulley 12, and the second mounting rod 13 provides a sliding and installation space for the second pulley 14. The first clamping plate 15 restricts the second mounting rod 13 on the movable plate 10, and the second clamping plate 23 restricts the first mounting rod 11 on the movable plate 10. Through the cooperation between the first pulley 12 and the multiple second pulleys 14, it can make the outer walls of the first pulley 12 and the multiple second pulleys 14 fit the surface of a workpiece with a complex or irregular shape (such as a curved surface part) at the same time. Moreover, there are two first auxiliary components 6, and the two first auxiliary components 6 are symmetrically distributed on both sides of the stud placement opening 3. The two first auxiliary components 6 and the stud placement opening 3 form an installation direction in series. When welding on the surface of a curved surface part is required, control the installation direction of the two first auxiliary components 6 and the stud placement opening 3 to be parallel to the axis direction of the curved surface part, and make the outer walls of the first pulleys 12 of the two first auxiliary components 6 and the multiple second pulleys 14 fit the surface of the curved surface part, so as to ensure that the stud placement opening 3 is perpendicular to the surface of the curved surface part.

[0040] Refer to Figures 4 - 5, the first auxiliary component 6 further includes a second shoulder 19 sleeved on the rod wall of the first mounting rod 11, a second guiding block 20 fixedly mounted on the rod wall of the first mounting rod 11, a second elastic member 21 sleeved on the rod wall of the first mounting rod 11, a first shoulder 16 sleeved on the rod wall of the second mounting rod 13, a first guiding block 17 fixedly mounted on the rod wall of the second mounting rod 13, and a first elastic member 18 sleeved on the rod wall of the second mounting rod 13. One end of the second elastic member 21 is fixedly connected to the outer wall of the second shoulder 19, the other end of the second elastic member 21 is fixedly connected to the outer wall of the movable plate 10, one end of the first elastic member 18 is fixedly connected to the outer wall of the first shoulder 16, and the other end of the first elastic member 18 is fixedly connected to the outer wall of the movable plate 10.

[0041] Specifically, the second elastic member 21 can be a common compression spring or return spring in the prior art. Here, a compression spring is preferably used. When the first pulley 12 contacts the surface of the curved surface member and drives the first pulley 12 to slide in the direction close to the movable plate 10, the second shoulder 19 squeezes the second elastic member 21, causing the second elastic member 21 to generate an elastic force. When the first pulley 12 separates from the surface of the curved surface member, through the provided second elastic member 21, the first pulley 12 and the first mounting rod 11 can be driven to reset. Through the second guiding block 20, the sliding trajectory of the first mounting rod 11 can be limited, ensuring that the first mounting rod 11 can only slide and cannot rotate, improving the stability of the first mounting rod 11 during sliding.

[0042] The first elastic member 18 can be a common compression spring or return spring in the prior art. Here, a compression spring is preferably used. When the second pulley 14 contacts the surface of the curved surface member and drives the second pulley 14 to slide in the direction close to the movable plate 10, the first shoulder 16 squeezes the first elastic member 18, causing the first elastic member 18 to generate an elastic force. When the second pulley 14 separates from the surface of the curved surface member, through the provided first elastic member 18, the second pulley 14 and the second mounting rod 13 can be driven to reset. Through the first guiding block 17, it can be ensured that the second mounting rod 13 can only slide and cannot rotate, improving the stability of the second mounting rod 13 during sliding.

[0043] Refer to Figure 9 , a third elastic member 40 is provided inside the fixed cylinder 8. One end of the third elastic member 40 is fixedly connected to the end of the sliding cylinder 9 away from the movable plate 10, and the other end of the third elastic member 40 is fixedly connected to the inner wall of the fixed cylinder 8.

[0044] Specifically, the third elastic member 40 can be a common compression spring or return spring in the prior art. Here, it is preferably a compression spring. The operator holds the welding torch handle 1, places the installation directions of the two first auxiliary members 6 and the stud placement opening 3 parallel to the axis direction of the curved surface member, and makes the outer walls of the first pulleys 12 of the two first auxiliary members 6 and the outer walls of the plurality of second pulleys 14 fit against the surface of the curved surface member, ensuring that the stud placement opening 3 is perpendicular to the surface of the curved surface member. At this time, the stud placement opening 3 is aligned with the welding point of the curved surface workpiece. Through the provided third elastic member 40, the operator can press the welding torch towards the direction close to the curved surface member, making the stud, the first pulleys 12 and the plurality of second pulleys 14 evenly approach the surface of the curved surface member. Finally, by pressing the control switch 4, the arc can be started, and the high temperature of the arc quickly melts a small part of the metal at the bottom of the stud and the surface of the workpiece, forming a welded joint.

[0045] Example 2. Refer to Figures 3 - 6 , which is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the first auxiliary member 6 further includes a first stopping piece 24 provided on the side of the movable plate 10 close to the first pulley 12, a first connecting rod 25 fixedly installed on the side of the first stopping piece 24 away from the first pulley 12, a first through groove 29 opened on the outer wall of the movable plate 10 for the first connecting rod 25 to slide, a second stopping piece 26 provided on the side of the movable plate 10 close to the second pulley 14, a second connecting rod 27 fixedly installed on the side of the second stopping piece 26 away from the second pulley 14, a second through groove 30 opened on the outer wall of the movable plate 10 for the second connecting rod 27 to slide, and a fixing plate 28 fixedly installed at the end of the fixed cylinder 8 close to the sliding cylinder 9. And one side of the fixing plate 28 close to the movable plate 10 is fixedly connected to the end of the first connecting rod 25 away from the first stopping piece 24, and one side of the fixing plate 28 close to the movable plate 10 is fixedly connected to the end of the second connecting rod 27 away from the second stopping piece 26.

[0046] Specifically, the side of the first stopping piece 24 close to the first pulley 12 is adapted to the outer wall of the first pulley 12, and the side of the second stopping piece 26 close to the second pulley 14 is adapted to the outer wall of the second pulley 14. It should be noted that the width of the first pulley 12 is greater than the width of the second pulley 14, which is beneficial to fixing the position of the first auxiliary member 6 after the first pulley 12 cannot rotate, and it is difficult for the other second pulleys 14 to rotate any further.

[0047] In the welding preparation stage, first make the outer walls of the first pulley 12 and the plurality of second pulleys 14 all contact the surface of the curved surface member until the second elastic member 21 is almost completely compressed. At this time, the operator can also slide the welding torch, driving the first pulley 12 and the plurality of second pulleys 14 to slide on the surface of the curved surface member, flexibly adjusting the stud welding position, further improving the convenience of using this device.

[0048] When the welding position adjustment is completed and welding operation is required, by pressing the welding torch in the direction close to the surface of the workpiece, the sliding cylinder 9 can be driven to retract into the fixed cylinder 8. At the same time, the first stopping piece 24 is in close contact with the surface of the first pulley 12. The first stopping piece 24 can prevent the first pulley 12 from continuing to rotate, thereby fixing the positions of the first auxiliary component 6 and the stud placement opening 3. The second stopping piece 26 can be in close contact with the surface of the second pulley 14 when welding a flat workpiece surface, preventing the second pulley 14 from rotating, further improving the accuracy of the welding position and the stability during the welding process. Finally, the stud on the stud placement opening 3, the first pulleys 12 of the two first auxiliary components 6, and multiple second pulleys 14 are all in contact with the workpiece surface, ensuring that the stud placement opening 3 is perpendicular to the workpiece surface. By pressing the control switch 4, the stud can be welded.

[0049] Referring to Figure 3 , a second auxiliary component 7 is provided on the gun head 2. The function of the second auxiliary component 7 is to assist the stud placement opening 3 to be perpendicular to the flat workpiece surface. The second auxiliary component 7 includes a fixed seat 37 fixedly installed on one side of the gun head 2 close to the stud placement opening 3, a rotating rod 38 rotatably installed inside the fixed seat 37, and a telescopic rod 39 elastically installed inside the rotating rod 38. The range within which the telescopic rod 39 can slide is the same as the range within which the first pulley 12 can slide.

[0050] Specifically, when welding on the surface of a flat workpiece, through the provided second auxiliary component 7, the first pulley 12 and multiple second pulleys 14 do not need to slide on the surface of the flat workpiece, but can directly stand on the surface of the flat workpiece, further expanding the application range of the device.

[0051] A threaded groove (not labeled in the figure) is provided on the outer wall of the fixed seat 37. A fixing bolt (not labeled in the figure) is connected to the inside of the threaded groove through internal and external thread cooperation. The end of the fixing bolt is in close contact with one end of the rotating shaft of the rotating rod 38. Through the cooperation of the threaded groove and the fixing bolt, the rotation angle of the rotating rod 38 can be fixed. In addition, a baffle (not labeled in the figure) is provided on one side of the fixed seat 37 close to the stud placement opening 3, which can make the rotating rod 38 rotate to a direction parallel to the stud placement opening 3. The telescopic rod 39 can slide inside the rotating rod 38. A fourth elastic member (not labeled in the figure) is also provided inside the rotating rod 38. The fourth elastic member can be a common compression spring or return spring in the prior art. Here, it is preferably a compression spring, which can provide the power for the telescopic rod 39 to return. By controlling the ends of the two telescopic rods 39, the first pulley 12, and multiple second pulleys 14 to be in contact with the flat workpiece surface, it can be ensured that the stud placement opening 3 is perpendicular to the surface of the flat workpiece. The remaining structure is the same as that of Embodiment 1.

[0052] Embodiment 3, referring toFigures 7 - 10 , which is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that the first auxiliary component 6 further includes a through hole 31 formed in the rod wall of the sliding cylinder 9, and a limiting rod 32 slidably installed inside the through hole 31 for restricting the sliding of the sliding cylinder 9.

[0053] Specifically, in the welding preparation stage, by controlling the limiting rod 32 to extend out of the through hole 31, the sliding cylinder 9 cannot be retracted into the fixed cylinder 8, which can effectively prevent the first stopping piece 24 from accidentally contacting the first pulley 12 during the welding preparation process and affecting the normal rotation of the first pulley 12, further improving the convenience for the operator to adjust the welding position.

[0054] Refer to Figures 9 - 10 , the first auxiliary component 6 further includes a mounting plate 33 fixedly installed at one end of the limiting rod 32, an extrusion groove 34 formed in the outer wall of the mounting plate 33, a wedge block 36 fixedly installed on the side surface of the second clamping plate 23 away from the first mounting rod 11 for extruding the extrusion groove 34, and an arc-shaped elastic piece 35 fixedly installed on the side surface of the mounting plate 33 away from the limiting rod 32. The end of the arc-shaped elastic piece 35 away from the mounting plate 33 is fixedly connected to the inner wall of the sliding cylinder 9. There are two arc-shaped elastic pieces 35, and the two arc-shaped elastic pieces 35 are symmetrically arranged.

[0055] Specifically, the wedge block 36 is inclined in the direction close to the arc-shaped elastic piece 35. When the wedge block 36 extrudes the inner wall of the extrusion groove 34 of the mounting plate 33, it can drive the mounting plate 33 to move in the direction close to the arc-shaped elastic piece 35. Through the provided arc-shaped elastic piece 35, the power for the mounting plate 33 to reset can be provided.

[0056] When the welding position is adjusted and welding operation needs to be carried out, by pressing the welding torch in the direction close to the surface of the workpiece, first, it can drive the first mounting rod 11 to continue to move in the direction close to the movable plate 10 until the second elastic member 21 is completely compressed. At this time, the wedge block 36 extrudes the inner wall of the extrusion groove 34, which can drive the mounting plate 33 to move. The mounting plate 33 can drive the limiting rod 32 to be retracted into the through hole 31. The mounting plate 33 squeezes the two arc-shaped elastic pieces 35 to store elastic force for the two arc-shaped elastic pieces 35. After the limiting rod 32 is retracted into the through hole 31, the limiting rod 32 no longer hinders the sliding cylinder 9, and the sliding cylinder 9 can be retracted into the fixed cylinder 8. The rest of the structure is the same as that of Embodiment 2.

[0057] Combining Embodiment 1 - Embodiment 3, the working principle of the present invention is as follows:

[0058] When stud welding is required on the surface of a curved workpiece, first place the workpiece on the workbench and fix it to ensure that it will not move during the welding process. Then, clamp the ground wire clip onto the curved workpiece (the curved workpiece can be a common curved workpiece, round tube workpiece, etc. in the prior art) to ensure that the welding current loop can be smoothly formed. Next, place the stud on the stud placement port 3, and then make the first pulley 12 of the first auxiliary component 6 and multiple second pulleys 14 contact the surface of the curved workpiece.

[0059] When the outer walls of the first pulley 12 and multiple second pulleys 14 are in contact with the surface of the curved workpiece until the second elastic member 21 is almost completely compressed, the operator can also slide the welding gun to drive the first pulley 12 and multiple second pulleys 14 to slide on the surface of the curved workpiece, flexibly adjusting the stud welding position, which further improves the convenience of using this device.

[0060] When the welding position is adjusted and welding operation is required, by pressing the welding gun in the direction close to the workpiece surface, first, it can drive the first mounting rod 11 to continue moving in the direction close to the movable plate 10 until the second elastic member 21 is completely compressed. At this time, the wedge block 36 presses against the inner wall of the extrusion groove 34, which can drive the mounting plate 33 to move. The mounting plate 33 can drive the limiting rod 32 to retract into the through hole 31. The mounting plate 33 squeezes the two arc-shaped elastic pieces 35 to store elastic force in the two arc-shaped elastic pieces 35. After the limiting rod 32 retracts into the through hole 31, the limiting rod 32 no longer obstructs the sliding cylinder 9, and the sliding cylinder 9 can retract into the fixed cylinder 8.

[0061] At the same time, the first stopping piece 24 is in close contact with the surface of the first pulley 12. The first stopping piece 24 can prevent the first pulley 12 from continuing to rotate. And the second stopping piece 26 can be in close contact with the surface of the second pulley 14 when welding a flat workpiece surface to prevent the second pulley 14 from rotating, which further improves the accuracy of the welding position and the stability during the welding process. Finally, make the stud on the stud placement port 3, the first pulley 12 of the two first auxiliary components 6 and multiple second pulleys 14 all contact the workpiece surface, ensure that the stud placement port 3 is perpendicular to the workpiece surface, and by pressing the control switch 4, the arc can be started, and the high temperature of the arc quickly melts a small part of the metal at the bottom of the stud and the workpiece surface to form a welded joint.

[0062] After welding is completed, the operator picks up the welding gun, and the first pulley 12 and the second pulley 14 are separated from the surface of the curved workpiece. Through the cooperation of the first elastic member 18, the second elastic member 21, the third elastic member 40 and the arc-shaped elastic pieces 35, it can drive the first pulley 12, the second pulley 14, the sliding cylinder 9 and the limiting rod 32 to reset. When stud welding is required again, the above operations can be repeated.

[0063] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A welding and processing device for hardware parts, comprising a handle (1), a gun head (2) arranged on the handle (1), a stud placement port (3) arranged on the gun head (2), and a control switch (4) arranged on the handle (1), characterized in that: A first auxiliary component (6) is provided on the gun head (2). The function of the first auxiliary component (6) is to make the stud placement port (3) perpendicular to the surface of the curved workpiece. There are two first auxiliary components (6), and the two first auxiliary components (6) are symmetrically distributed on both sides of the stud placement port (3). The first auxiliary component (6) includes a fixed cylinder (8) provided on the side of the gun head (2) close to the stud placement port (3), a sliding cylinder (9) provided inside the fixed cylinder (8), a movable plate (10) provided at the end of the sliding cylinder (9), a first mounting rod (11) provided on the outer wall of the movable plate (10), a first pulley (12) provided at the end of the first mounting rod (11) away from the sliding cylinder (9), a cavity (22) opened inside the sliding cylinder (9), a second clamping plate (23) provided at the end of the first mounting rod (11) away from the first pulley (12), a second mounting rod (13) provided on the outer wall of the movable plate (10), a second pulley (14) provided at the end of the second mounting rod (13) away from the sliding cylinder (9), and a first clamping plate (15) provided at the end of the second mounting rod (13) away from the second pulley (14). The second clamping plate (23) is located inside the cavity (22). There are multiple second mounting rods (13), and the multiple second mounting rods (13) are symmetrically distributed on both sides of the first mounting rod (11). The number of the second pulleys (14) corresponds to the number of the second mounting rods (13). The first auxiliary component (6) further includes a first stopping piece (24) provided on the side of the movable plate (10) close to the first pulley (12), a first connecting rod (25) provided on the side of the first stopping piece (24) away from the first pulley (12), a first through groove (29) opened on the outer wall of the movable plate (10) for the first connecting rod (25) to slide, a second stopping piece (26) provided on the side of the movable plate (10) close to the second pulley (14), a second connecting rod (27) provided on the side of the second stopping piece (26) away from the second pulley (14), a second through groove (30) opened on the outer wall of the movable plate (10) for the second connecting rod (27) to slide, and a fixing plate (28) provided at the end of the fixed cylinder (8) close to the sliding cylinder (9). One side of the fixing plate (28) close to the movable plate (10) is fixedly connected to the end of the first connecting rod (25) away from the first stopping piece (24), and one side of the fixing plate (28) close to the movable plate (10) is fixedly connected to the end of the second connecting rod (27) away from the second stopping piece (26). The first auxiliary component (6) further includes a through hole (31) opened on the rod wall of the sliding cylinder (9), and a limiting rod (32) provided inside the through hole (31) for restricting the sliding of the sliding cylinder (9). The first auxiliary component (6) further includes a mounting plate (33) disposed at one end of the limiting rod (32), an extrusion groove (34) formed in the outer wall of the mounting plate (33), a wedge block (36) disposed on the side surface of the second clamping plate (23) away from the first mounting rod (11) for extruding the extrusion groove (34), and an arc-shaped elastic sheet (35) disposed on the side surface of the mounting plate (33) away from the limiting rod (32). One end of the arc-shaped elastic sheet (35) away from the mounting plate (33) is fixedly connected to the inner wall of the sliding cylinder (9). There are two arc-shaped elastic sheets (35), and the two arc-shaped elastic sheets (35) are symmetrically arranged. A third elastic member (40) is disposed inside the fixed cylinder (8). One end of the third elastic member (40) is fixedly connected to the end of the sliding cylinder (9) away from the movable plate (10), and the other end of the third elastic member (40) is fixedly connected to the inner wall of the fixed cylinder (8).

2. The hardware part welding and processing equipment according to claim 1, characterized in that: The first auxiliary component (6) further includes a second shoulder (19) disposed on the rod wall of the first mounting rod (11), a second guiding block (20) disposed on the rod wall of the first mounting rod (11), a second elastic member (21) disposed on the rod wall of the first mounting rod (11), a first shoulder (16) disposed on the rod wall of the second mounting rod (13), a first guiding block (17) disposed on the rod wall of the second mounting rod (13), and a first elastic member (18) disposed on the rod wall of the second mounting rod (13). One end of the second elastic member (21) is fixedly connected to the outer wall of the second shoulder (19), and the other end of the second elastic member (21) is fixedly connected to the outer wall of the movable plate (10). One end of the first elastic member (18) is fixedly connected to the outer wall of the first shoulder (16), and the other end of the first elastic member (18) is fixedly connected to the outer wall of the movable plate (10).

3. The hardware part welding and processing equipment according to claim 2, characterized in that: One side surface of the first stopping piece (24) close to the first pulley (12) is adapted to the outer wall of the first pulley (12), and one side surface of the second stopping piece (26) close to the second pulley (14) is adapted to the outer wall of the second pulley (14).

4. The hardware part welding and processing equipment according to claim 1, characterized in that: A second auxiliary component (7) is disposed on the gun head (2). The function of the second auxiliary component (7) is to assist the stud placement port (3) to be perpendicular to the surface of the flat workpiece.

5. The welding and processing equipment for hardware parts according to claim 4, characterized in that: The second auxiliary component (7) includes a fixed seat (37) disposed on the side surface of the gun head (2) close to the stud placement port (3), a rotating rod (38) disposed inside the fixed seat (37), and a telescopic rod (39) disposed inside the rotating rod (38). The sliding range of the telescopic rod (39) is the same as the sliding range of the first pulley (12).

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