Stud welding gun

Abstract

The utility model relates to a stud welding gun which comprises a gun body, a gun bore, a replaceable gun head and a blocking assembly. A containing cavity is defined by the gun body, the gun bore is arranged in the containing cavity, a mounting gap is reserved between the outer wall of the gun bore and the inner wall of the gun body, a containing cavity is defined by the gun bore, and an outlet is formed in the end, away from the passing opening, of the gun bore. One end of the replaceable gun head penetrates through a muzzle of the gun body to be arranged in the containing cavity and is arranged on the peripheral wall of the end, provided with an outlet, of the gun bore in a sleeving mode, the first end of the blocking assembly is rotatably arranged in the containing cavity and is close to the outlet of the gun bore, and the second end of the blocking assembly penetrates through the installation gap to be connected with a control button on the gun body. The first end of the blocking assembly has a blocking state and an opening state; compared with a traditional welding gun, the cylindrical stud does not need to be manually arranged on the welding gun in a sleeving mode during stud welding, the stud welding speed and welding efficiency are improved, meanwhile, the workload of operators can be relieved, and fatigue of the operators is avoided.

Description

Technical Field

[0001] This utility model relates to the field of stud welding and installation technology, and in particular to a stud welding gun. Background Technology

[0002] Currently, studs are a type of high-strength, rigid fastener used in various steel structure projects, serving as a combined connection between floor beams and reinforced concrete slabs. The installation of studs requires the use of an arc-type stud welding machine and welding torch to fully penetrate the profiled steel sheet, thus joining the stud, profiled steel sheet, and steel component together.

[0003] Currently, welding studs requires manual placement of the columnar studs onto the welding torch before starting the welding process. Since the work area is typically large and there are many studs to weld, the traditional welding torch requires manual re-placement of the columnar studs after each weld, resulting in slow welding speed, low efficiency, and operator fatigue. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a stud welding gun, which has the advantages of improving the stud welding speed and welding efficiency, while reducing the workload of operators and avoiding operator fatigue.

[0005] The above-mentioned utility model objective is achieved through the following technical solution: a stud welding gun, comprising a gun body, a gun barrel, and a blocking assembly; the gun body is arranged in a receiving cavity, the gun barrel is disposed within the receiving cavity, an installation gap is left between the outer wall of the gun barrel and the inner wall of the gun body, the gun barrel is arranged in a receiving cavity, an insertion port is provided on the outer side wall near the top of the gun body, the insertion port communicates with the receiving cavity, an outlet is provided on the outer side wall near the top of the gun barrel, the outlet communicates with the receiving cavity, the outlet and the insertion port are correspondingly arranged, the outlet and the insertion port communicate with each other, the insertion port communicates with the receiving cavity through the outlet, and the stud to be welded is inserted into the receiving cavity by passing through the insertion port and the outlet in sequence; an outlet is provided at the end of the gun barrel opposite to the outlet, the outlet communicates with the receiving cavity, and a replaceable gun head passes through the gun body. The muzzle is located within the accommodating cavity and fitted onto the outer peripheral wall of the end of the barrel with an outlet. The accommodating cavity communicates with the replaceable gun head through the outlet. The other end of the replaceable gun head extends along the X direction to the outside of the gun body. The first end of the blocking assembly is rotatably disposed within the accommodating cavity and near the outlet of the barrel. The second end of the blocking assembly passes through the installation gap and connects to a control button on the gun body. The first end of the blocking assembly includes a blocking state and an open state. When the first end of the blocking assembly is in the blocking state, the welding end of the stud to be welded abuts against the first end of the blocking assembly. When the first end of the blocking assembly is in the open state, pressing the control button causes the first end of the blocking assembly to rotate by a preset angle, and the welding end of the stud to be welded slides to the outside of the replaceable gun head.

[0006] Preferably, in the stud welding gun provided by this utility model, the blocking assembly includes a first blocking unit and a second blocking unit. The first end of the first blocking unit and the first end of the second blocking unit are rotatably disposed in the receiving cavity and near the outlet. The first end of the first blocking unit and the first end of the second blocking unit are spaced apart. The second end of the first blocking unit and the second end of the second blocking unit both pass through the installation gap and are connected to the control button.

[0007] Preferably, the stud welding gun provided by this utility model includes a first blocking unit comprising a first buckle, a first fixed pulley, and a first metal wire. The first buckle is rotatably disposed within the receiving cavity. A first notch is provided on the outer wall of the gun barrel, communicating with the receiving cavity and corresponding to the first buckle. The first fixed pulley is disposed within the installation gap. One end of the first metal wire is connected to the first buckle, and the other end of the first metal wire passes around the first fixed pulley and is connected to the control button. The first buckle includes a blocking state and an open state. When the first buckle is in the blocking state, it is located within the receiving cavity, and its first sidewall is sealed at the first notch. When the first buckle is in the open state, pressing the control button causes the first buckle to rotate by a first preset angle via the first metal wire. The first sidewall of the first buckle rotates into the installation gap, and its second sidewall is sealed at the first notch.

[0008] Preferably, the stud welding gun provided by this utility model includes a second blocking unit comprising a second latch, a second fixed pulley, and a second metal wire. The second latch is rotatably disposed within the receiving cavity. A second notch is provided on the outer wall of the gun barrel, communicating with the receiving cavity and correspondingly disposed with the second latch. The second fixed pulley is disposed within the installation gap. One end of the second metal wire is connected to the second latch, and the other end of the second metal wire passes around the second fixed pulley and is connected to the control button. The second latch includes a blocking state and an open state. When the second latch is in the blocking state, it is located within the receiving cavity, and its first outer side wall blocks the first notch. When the second latch is in the open state, pressing the control button causes the second latch to rotate a second preset angle via the second metal wire. The first outer side wall of the second latch rotates into the installation gap, and its second outer side wall blocks the second notch.

[0009] Preferably, in the stud welding gun provided by this utility model, the first buckle includes a first horizontal plate, a first vertical plate, and a first reinforcing plate. One end of the first horizontal plate is connected to one end of the first vertical plate, one side of the first reinforcing plate is connected to the inner wall of the first vertical plate, the other side of the first reinforcing plate is connected to the inner wall of the first horizontal plate, and one end of the first metal wire away from the control button is connected to the first reinforcing plate.

[0010] Preferably, in the stud welding gun provided by this utility model, the second buckle includes a second horizontal plate, a second vertical plate, and a second reinforcing plate. One end of the second horizontal plate is connected to one end of the second vertical plate, one side of the second reinforcing plate is connected to the inner wall of the second vertical plate, the other side of the second reinforcing plate is connected to the inner wall of the second horizontal plate, and one end of the second metal wire away from the control button is connected to the second reinforcing plate.

[0011] Preferably, in the stud welding gun provided by this utility model, the control button includes a return spring and a sliding plate. One end of the return spring is connected to the outer wall of the handle on the gun body, and the other end of the return spring is connected to the sliding plate. One end of the sliding plate is slidably connected to a first fixing plate on the handle, and the other end of the sliding plate is slidably connected to a second fixing plate on the handle. The sliding plate can move relative to the handle.

[0012] Preferably, the stud welding gun provided by this utility model further includes an ejection assembly, which is disposed at the inner top of the receiving cavity and is used to eject the stud to be welded.

[0013] Preferably, in the stud welding gun provided by this utility model, the ejection assembly includes a helical spring and an inclined plate. One end of the helical spring is connected to the inner top of the receiving cavity, and the other end of the helical spring is connected to the inclined plate. The end of the inclined plate away from the through-hole extends downward and beyond the through-hole, while the end of the inclined plate facing the through-hole extends upward and is located above the through-hole. The inclined plate is movable relative to the gun barrel.

[0014] Preferably, the stud welding gun provided by this utility model further includes a pressure plate and two gun rods. The two gun rods are respectively disposed on opposite outer side walls of the gun body. The two gun rods extend along the X direction. The ends of the two gun rods away from the control button are connected to the side of the pressure plate facing the gun body. An arc-shaped groove is provided on the pressure plate, and the arc-shaped groove is directly opposite to the replaceable gun head.

[0015] In summary, the beneficial technical effects of this utility model are as follows: The stud welding gun provided in this application includes a gun body, a gun barrel, a replaceable gun head, and a blocking assembly; the gun body is arranged in a receiving cavity, the gun barrel is located within the receiving cavity, and an installation gap is left between the outer wall of the gun barrel and the inner wall of the gun body. The gun barrel is arranged in a receiving cavity, and an insertion port is opened on the outer wall near the top of the gun body, which communicates with the receiving cavity. An outlet is opened on the outer wall near the top of the gun barrel, which communicates with the receiving cavity. The outlet and the insertion port are correspondingly arranged and communicate with each other. The insertion port communicates with the receiving cavity through the outlet. The stud to be welded passes through the insertion port and the outlet in sequence and is inserted into the receiving cavity. An outlet is opened at the end of the gun barrel away from the outlet, which communicates with the receiving cavity. One end of the replaceable gun head passes through the gun body and is located in the receiving cavity, and is sleeved on the outer peripheral wall of the end of the gun barrel with the outlet. The receiving cavity communicates with the receiving cavity through the outlet. The replaceable gun head is connected, and the other end of the replaceable gun head extends to the outside of the gun body along the X direction. The first end of the blocking component is rotatably set in the receiving cavity and is located near the outlet position of the gun barrel. The second end of the blocking component passes through the installation gap and is connected to the control button on the gun body. The first end of the blocking component has a blocking state and an open state. When the first end of the blocking component is in the blocking state, the welding end of the stud to be welded abuts against the first end of the blocking component. When the first end of the blocking component is in the open state, pressing the control button causes the first end of the blocking component to rotate by a preset angle, and the welding end of the stud to be welded slides to the outside of the replaceable gun head. Compared with traditional welding guns, it is not necessary to manually put the columnar stud on the welding gun when welding studs, which improves the welding speed and efficiency of studs. At the same time, it can reduce the workload of operators and avoid operator fatigue. Attached Figure Description

[0016] Figure 1 This is a front view of the stud welding gun provided in this embodiment of the utility model.

[0017] Figure 2 This is a front view of the stud welding gun (with the control button pressed) provided in this embodiment of the utility model.

[0018] Figure 3 This is a structural schematic diagram of the replaceable gun head in the stud welding gun provided in this embodiment of the utility model.

[0019] Figure 4 This is a schematic diagram of the connection structure between the gun rod and the pressure plate in the stud welding gun provided in this embodiment of the utility model.

[0020] Figure 5 This is a schematic diagram of the connection structure of the ejection assembly in the stud welding gun provided in this embodiment of the utility model.

[0021] Figure 6 This is a schematic diagram of the first bayonet in the stud welding gun provided in this embodiment of the utility model.

[0022] Figure 7 This is a schematic diagram of the structure of the second bayonet in the stud welding gun provided in this embodiment of the utility model.

[0023] Figure 8 This is a cross-sectional view AA of the stud welding gun provided in this embodiment of the utility model.

[0024] Figure 9 This is a cross-sectional view BB of the stud welding gun provided in this embodiment of the utility model.

[0025] Figure 10 This is a schematic diagram of the gun barrel structure of the stud welding gun provided in this embodiment of the utility model.

[0026] In the diagram, 1. Bolt welding gun; 10. Gun body; 11. Installation gap; 12. Handle; 121. First fixing plate; 122. Second fixing plate; 13. Partition plate; 20. Gun barrel; 21. Receiving cavity; 22. Through-hole; 23. First notch; 24. Second notch; 25. First housing; 251. Rotating cavity; 252. External thread; 26. Second housing; 261. Insertion cavity; 30. Replaceable gun head; 31. Hollow cylinder; 32. Hollow frustum column; 321. Arc-shaped spring; 40. Blocking assembly; 41. First blocking unit; 411. First buckle; 4111. First horizontal plate; 4112. First vertical plate; 4113. First reinforcing plate; 4114. Mounting hole; 4115. First rotating rod; 412. First fixed pulley; 413. First metal wire; 42. Second blocking unit; 421. Second buckle; 4211. Second horizontal plate; 4212. Second vertical plate; 4213. Second reinforcing plate; 4214. Connecting hole; 4215. Second rotating rod; 422. Second fixed pulley; 423. Second metal wire; 50. Control button; 51. Return spring; 52. Slide plate; 60. Ejection assembly; 61. Helical spring; 62. Inclined plate; 70. Pressure plate; 701. Arc-shaped groove; 71. Gun barrel; 80. Welding switch; 81. Welding wire; 90. Inclined transition plate; 2. Stud to be welded. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Reference Figure 1 and Figure 2This utility model discloses a stud welding gun 1, which includes a gun body 10, a gun chamber 20, and a blocking component 40. The gun body 10 is arranged to form a cavity, and the gun chamber 20 is disposed in the cavity. An installation gap 11 is left between the outer wall of the gun chamber 20 and the inner wall of the gun body 10. The gun chamber 20 is arranged to form a cavity 21. An insertion port is opened on the outer wall near the top of the gun body 10, and the insertion port communicates with the cavity. A through port 22 is opened on the outer wall near the top of the gun chamber 20, and the through port 22 communicates with the cavity 21. The through port 22 is correspondingly arranged with the insertion port and communicates with the insertion port. The insertion port communicates with the cavity 21 through the through port 22. The stud 2 to be welded passes through the insertion port and the through port 22 in sequence and is inserted into the cavity 21.

[0029] Specifically, with Figure 1 Taking the indicated orientation as an example, an insertion port is provided on the outer wall on the left side near the top of the gun body 10, and a through-hole 22 is provided on the outer wall on the left side near the top of the gun chamber 20, with the through-hole 22 communicating with the insertion port.

[0030] The gun body 10 is equipped with a partition 13, which divides the accommodating cavity into a first chamber and a second chamber. Figure 1 Taking the orientation shown as an example, the first chamber and the second chamber are arranged sequentially from left to right.

[0031] In this embodiment, the gun barrel 20 is disposed in the second chamber, and the outer wall on the left side of the gun barrel 20 is fixedly connected to the partition plate 13.

[0032] Continue to refer to Figure 1 and Figure 10 In this embodiment, the barrel 20 includes a cylindrical first shell 25 and a cuboid second shell 26. The first shell 25 surrounds a rotating cavity 251, and the second shell 26 surrounds an insertion cavity 261. The second shell 26 is disposed on the outer peripheral wall near one end of the first shell 25. The rotating cavity 251 and the insertion cavity 261 communicate with each other, and together they constitute a receiving cavity 21. Figure 1Taking the indicated orientation as an example, the insertion cavity 261 and the rotating cavity 251 are arranged sequentially from top to bottom. A through-hole 22 is opened at the left end of the second housing 26, and the through-hole 22 communicates with the insertion cavity 261. In this embodiment, the end of the barrel 20 facing away from the through-hole 22 has an outlet, which communicates with the receiving cavity 21. One end of the replaceable gun head 30 passes through the muzzle of the gun body 10 and is located within the receiving cavity, and is fitted onto the outer peripheral wall of the end of the barrel 20 with the outlet. The receiving cavity 21 communicates with the replaceable gun head 30 through the outlet. The other end of the replaceable gun head extends along the X direction to the outside of the gun body 10. The first end of the blocking component 40 is rotatably disposed within the receiving cavity 21 and is located near the outlet of the barrel 20. The second end of the blocking component 40 passes through the installation gap 11 and is connected to the control button 50 on the gun body 10. The first end of the 0 includes a blocking state and an open state; when the first end of the blocking component 40 is in the blocking state, the welding end of the stud 2 to be welded abuts against the first end of the blocking component 40; when the first end of the blocking component 40 is in the open state, pressing the control button 50 causes the first end of the blocking component 40 to rotate by a preset angle, and the welding end of the stud 2 to be welded slides to the outside of the replaceable gun head 30; compared with the traditional welding gun, it is not necessary to manually put the columnar stud on the welding gun when welding studs, which improves the welding speed and welding efficiency of studs, and at the same time, it can reduce the workload of operators and avoid operator fatigue.

[0033] The preset angle is 90°. The end of the first housing 25 away from the second housing 26 has an outlet, which is connected to the rotating cavity 251.

[0034] By setting the replaceable gun head 30, the replaceable gun head 30 can be used for welding studs of various specifications, as shown in the replaceable gun head 30 size table.

[0035] Replaceable gun head size table

[0036] Stud type φ / mm 10 13 16 19 22 25 Replaceable gun head diameter d / mm 15 20 25 30 30 35

[0037] Specifically, the first end of the blocking assembly 40 is rotatably disposed within the rotating cavity 251 and is positioned near the exit position of the barrel 20.

[0038] It should be noted that the stud welding gun 1 provided in this embodiment is used perpendicular to the ground.

[0039] Continue to refer to Figure 3In this embodiment, the replaceable gun head 30 includes a hollow cylinder 31 and a hollow frustum 32. The large-diameter end of the hollow frustum 32 is connected to the end of the hollow cylinder 31, and the hollow cylinder 31 and the hollow frustum 32 are connected. The outer peripheral wall of the first housing 25 with an opening is provided with an external thread 252, and the inner peripheral wall of the hollow cylinder 31 is provided with an internal thread that matches the external thread 252. During use, the hollow cylinder 31 passes through the muzzle of the gun body 10 and is inserted into the second chamber, and is threadedly connected to the outer peripheral wall of the end of the gun barrel 20 with an opening. The hollow frustum 32 extends outward along the X direction.

[0040] It should be noted that the diameter of the welding end of the stud 2 to be welded is smaller than the diameter of the small diameter end of the hollow frustum 32, and the diameter of the stud head of the stud 2 to be welded is larger than the diameter of the small diameter end of the hollow frustum 32, but smaller than the diameter of the large diameter end of the hollow frustum 32.

[0041] Specifically, the centerline of the hollow cylinder 31 and the centerline of the hollow frustum 32 are both set parallel to the X direction. In some feasible ways, the centerline of the hollow cylinder 31 and the centerline of the hollow frustum 32 are set collinearly.

[0042] The hollow truncated cylinder 32 includes multiple arc-shaped spring pieces 321, one end of each arc-shaped spring piece 321 is connected to the end of the hollow cylinder 31, and the multiple arc-shaped spring pieces 321 are arranged at intervals around the circumference of the hollow cylinder 31.

[0043] When the welding end of the stud 2 to be welded slides out to the outside of the small diameter end of the hollow frustum column 32, the head of the stud 2 to be welded stays in the rotating cavity 251. After the stud 2 to be welded is completed, the stud welding gun 1 is gently lifted upward. Due to the elasticity of the arc-shaped spring 321, the head of the stud 2 to be welded slides out to the outside of the replaceable gun head 30.

[0044] Continue to refer to Figure 1 , Figure 2 as well as Figure 5 The stud welding gun 1 provided in this embodiment also includes an ejection assembly 60, which is disposed at the inner top of the receiving cavity 21 and is used to eject the stud 2 to be welded.

[0045] Specifically, with Figure 1 Taking the orientation shown as an example, the ejection assembly 60 is disposed in the insertion cavity 261, and the top end of the ejection assembly 60 is connected to the inner fixed end of the insertion cavity 261.

[0046] Furthermore, in this embodiment, the ejection assembly 60 includes a helical spring 61 and an inclined plate 62. One end of the helical spring 61 is connected to the inner top of the receiving cavity 21, and the other end of the helical spring 61 is connected to the inclined plate 62. The end of the inclined plate 62 away from the passage 22 extends downward and beyond the passage 22, while the end of the inclined plate 62 facing the passage 22 extends upward and is located above the passage 22. The inclined plate 62 is movable relative to the gun barrel 20.

[0047] Specifically, with Figure 1 Taking the orientation shown as an example, the centerline of the helical spring 61 is set parallel to the Y direction, the top end of the helical spring 61 is connected to the inner top end of the insertion cavity 261, and the bottom end of the helical spring 61 is connected to the inclined plate 62. Figure 1 Taking the orientation shown as an example, the left end of the inclined plate 62 is located above the passage 22, and the right end of the inclined plate 62 extends beyond the passage 22. During use, when the stud to be welded 2 is inserted into the insertion cavity 261, the inclined plate 62 is squeezed to compress the coil spring 61. After the stud to be welded 2 is fully inserted into the insertion cavity 261, the coil spring 61 applies a restoring force to the stud to be welded 2 through the inclined plate 62, ejecting the stud to be welded 2 into the rotating cavity 251. The stud to be welded 2 slides along the rotating cavity 251 until it abuts against the blocking assembly 40.

[0048] Continue to refer to Figure 1 and Figure 4 The stud welding gun 1 provided in this embodiment also includes a pressure plate 70 and two gun rods 71. The two gun rods 71 ​​are respectively disposed on the opposite two outer side walls of the gun body 10. The two gun rods 71 ​​extend along the X direction. The ends of the two gun rods 71 ​​away from the control button 50 are connected to the side of the pressure plate 70 facing the gun body 10. There is a preset distance between the pressure plate 70 and the replaceable gun head 30. An arc-shaped groove 701 is provided on the pressure plate 70. The arc-shaped groove 701 is directly opposite to the replaceable gun head 30.

[0049] Specifically, the gun barrel 71 is connected to the outer wall of the gun body 10 by fixing screws, and the pressure plate 70 is set perpendicular to the X direction.

[0050] Continue to refer to Figure 1 and Figure 2 In this embodiment, the control button 50 includes a reset spring 51 and a slide plate 52. One end of the reset spring 51 is connected to the outer wall of the handle 12 on the gun body 10, and the other end of the reset spring 51 is connected to the slide plate 52. One end of the slide plate 52 is slidably connected to the first fixing plate 121 on the handle 12, and the other end of the slide plate 52 is slidably connected to the second fixing plate 122 on the handle 12. The slide plate 52 can move relative to the handle 12.

[0051] Specifically, with Figure 1Taking the orientation shown as an example, the center line of the return spring 51 is set parallel to the X direction. The first fixing plate 121 and the second fixing plate 122 are both set on the right side wall of the handle 12. The first fixing plate 121 and the second fixing plate 122 are set parallel to each other. The top of the slide plate 52 is slidably connected to the first fixing plate 121, and the bottom of the slide plate 52 is slidably connected to the second fixing plate 122. The second end of the blocking component 40 passes through the installation gap 11 and is connected to the slide plate 52.

[0052] Both the first fixing plate 121 and the second fixing plate 122 are perpendicular to the slide plate 52.

[0053] Furthermore, in this embodiment, a welding switch 80 for controlling welding is provided on the side of the handle 12 where the return spring 51 is installed. The end of the blocking component 40 facing the replaceable gun head 30 is connected to an external stud welding machine via a welding wire 81. One end of the welding wire 81 passes through the outer wall of the gun body 10 and is inserted into the receiving cavity 21 through the outer wall of the gun chamber 20, and is connected to the end of the blocking component 40 facing the replaceable gun head 30. The end of the welding wire 81 away from the gun chamber 20 extends to the outside of the gun body 10 and is connected to the external stud welding machine.

[0054] During use, press the welding switch 80. Direct current enters the head of the stud 2 to be welded through the welding gun wire and is conducted to the contact point between the stud 2 and the base material, igniting an electric arc. The heat generated by the electric arc melts the stud 2 and the base material. After maintaining the arc for a certain period of time, the stud 2 is pressed into the local melting zone of the base material. Cut off the current and wait for the melt to cool before welding the stud 2 onto the working surface.

[0055] Continue to refer to Figure 1 , Figure 2 as well as Figures 6 to 9 In this embodiment, the blocking assembly 40 includes a first blocking unit 41 and a second blocking unit 42. The first end of the first blocking unit 41 and the first end of the second blocking unit 42 are rotatably disposed in the receiving cavity 21 and are disposed close to the opening. The first end of the first blocking unit 41 and the first end of the second blocking unit 42 are spaced apart. The second end of the first blocking unit 41 and the second end of the second blocking unit 42 are both connected to the control button 50 through the mounting gap 11.

[0056] Specifically, the first end of the first blocking unit 41 and the first end of the second blocking unit 42 are rotatably disposed within the rotating cavity 251, so as to... Figure 1 Taking the orientation shown as an example, the first end of the first blocking unit 41 and the first end of the second blocking unit 42 are spaced apart from left to right.

[0057] One end of the welding wire 81 passes through the outer wall of the gun body 10 and the outer wall of the gun barrel 20, is inserted into the receiving cavity 21, and is connected to the first end of the second blocking unit 42.

[0058] Furthermore, in this embodiment, the first blocking unit 41 includes a first latch 411, a first fixed pulley 412, and a first metal wire 413. The first latch 411 is rotatably disposed within the receiving cavity 21. A first notch 23 is provided on the outer wall of the barrel 20, communicating with the receiving cavity 21. The first notch 23 is correspondingly disposed with the first latch 411. The first fixed pulley 412 is disposed within the installation gap 11. One end of the first metal wire 413 is connected to the first latch 411, and the other end of the first metal wire 413 passes around the first fixed pulley 412 and connects to the control... The control button 50 is connected; the first latch 411 includes a blocking state and an open state; when the first latch 411 is in the blocking state, the first latch 411 is located in the receiving cavity 21, and the first sidewall of the first latch 411 is sealed at the first notch 23; when the first latch 411 is in the open state, pressing the control button 50 causes the control button 50 to drive the first latch 411 to rotate by a first preset angle via the first metal wire 413, and the first sidewall of the first latch 411 rotates into the installation gap 11, and the second sidewall of the first latch 411 is sealed at the first notch 23. Specifically, the first preset angle is 90°, and the first latch 411 is rotatably set in the rotating cavity 251, so that... Figure 10 Taking the orientation shown as an example, a first notch 23 is provided on the outer peripheral wall of the bottom end of the first housing 25, and the first notch 23 is connected to the rotating cavity 251.

[0059] The first metal wire 413, with one end facing away from the first buckle 411, passes around the first fixed pulley 412 and connects to the slide plate 52.

[0060] Continue to refer to Figure 6 In this embodiment, the first buckle 411 includes a first horizontal plate 4111, a first vertical plate 4112, and a first reinforcing plate 4113. One end of the first horizontal plate 4111 is connected to one end of the first vertical plate 4112. One side of the first reinforcing plate 4113 is connected to the inner wall of the first vertical plate 4112, and the other side of the first reinforcing plate 4113 is connected to the inner wall of the first horizontal plate 4111. One end of the first metal wire 413 facing away from the control button 50 is connected to the first reinforcing plate 4113.

[0061] It should be noted that the first sidewall of the first buckle 411 is the first horizontal plate 4111, and the second sidewall of the first buckle 411 is the first vertical plate 4112. The size of the first vertical plate 4112 is larger than the size of the first notch 23.

[0062] Specifically, the first vertical plate 4112 and the first horizontal plate 4111 are connected to form an L-shaped plate, the first reinforcing plate 4113 is a right-angled triangular plate, one right-angled side of the first reinforcing plate 4113 is attached to the inner wall of the first vertical plate 4112, and the other right-angled side of the first reinforcing plate 4113 is attached to the inner wall of the first horizontal plate 4111. A mounting hole 4114 is provided on the outer wall of the first reinforcing plate 4113 near the first horizontal plate 4111. The mounting hole 4114 passes through the first reinforcing plate 4113, and the end of the first metal wire 413 away from the control button 50 is connected to the first reinforcing plate 4113 through the mounting hole 4114.

[0063] The first vertical plate 4112 is provided with a first rotating rod 4115 on each of the two opposite outer walls near the first horizontal plate 4111. The first housing 25 is provided with a first rotating hole on each of the opposite side walls away from the second housing 26. The first rotating hole and the first rotating rod 4115 are provided in a one-to-one correspondence. The two first rotating rods 4115 are respectively inserted into the two first rotating holes. The first rotating rods 4115 can rotate in the first rotating holes so that the first buckle 411 can rotate relative to the barrel 20.

[0064] To prevent the welding end of the stud 2 to be welded from being blocked by the first vertical plate 4112 when the first buckle 411 is in the open state, an inclined transition plate 90 is provided at the end of the first buckle 411 away from the second buckle 421. A preset gap is spaced between the inclined transition plate 90 and the first buckle 411 to avoid interfering with the rotation of the first buckle.

[0065] When the first latch 411 is in the open state, the stud 2 to be welded slides through the inclined transition plate 90, the first latch 411 and the second latch 421 in sequence to the replaceable gun head 30.

[0066] The preset gap ranges from 8mm to 12mm, and in this embodiment, the preset gap is 10mm.

[0067] Furthermore, in this embodiment, the second blocking unit 42 includes a second latch 421, a second fixed pulley 422, and a second metal wire 423. The second latch 421 is rotatably disposed within the receiving cavity 21. A second notch 24 is provided on the outer wall of the barrel 20, communicating with the receiving cavity 21. The second notch 24 is correspondingly disposed with the second latch 421. The second fixed pulley 422 is disposed within the installation gap 11. One end of the second metal wire 423 is connected to the second latch 421, and the other end of the second metal wire 423 passes around the second fixed pulley 422 and connects to the control button. Button 50 is connected; the second latch 421 includes a blocking state and an open state; when the second latch 421 is in the blocking state, the second latch 421 is located in the receiving cavity 21, and the first outer side wall of the second latch 421 is sealed at the first notch 23; when the second latch 421 is in the open state, pressing the control button 50 causes the control button 50 to drive the second latch 421 to rotate at a second preset angle through the second metal wire 423, and the first outer side wall of the second latch 421 rotates into the installation gap 11, and the second outer side wall of the second latch 421 is sealed at the second notch 24.

[0068] Specifically, the second preset angle is 90°, and specifically, the second latch 421 is rotatably disposed within the rotating cavity 251, so as to... Figure 10 Taking the orientation shown as an example, a second notch 24 is provided on the outer peripheral wall of the bottom end of the first housing 25. The second notch 24 is connected to the rotating cavity 251. The first notch 23 and the second notch 24 are spaced apart along the X direction. The second latch 421 is located on the side of the first latch 411 facing the replaceable gun head 30. The first latch 411 and the second latch 421 are spaced apart.

[0069] The end of the second metal wire 423 that is away from the second buckle 421 passes around the second fixed pulley 422 and connects to the slide plate 52.

[0070] In this embodiment, one end of the welding wire 81 passes through the outer wall of the gun body 10 and the outer wall of the gun barrel 20, is inserted into the receiving cavity 21, and is connected to the second buckle 421.

[0071] Continue to refer to Figure 7 In this embodiment, the second buckle 421 includes a second horizontal plate 4211, a second vertical plate 4212, and a second reinforcing plate 4213. One end of the second horizontal plate 4211 is connected to one end of the second vertical plate 4212. One side of the second reinforcing plate 4213 is connected to the inner wall of the second vertical plate 4212, and the other side of the second reinforcing plate 4213 is connected to the inner wall of the second horizontal plate 4211. One end of the second metal wire 423 away from the control button 50 is connected to the second reinforcing plate 4213.

[0072] It should be noted that the first outer wall of the second buckle 421 is the second horizontal plate 4211, and the second outer wall of the second buckle 421 is the second vertical plate 4212. The size of the second vertical plate 4212 is larger than the size of the second notch 24.

[0073] Specifically, the second vertical plate 4212 and the second horizontal plate 4211 are connected to form an L-shaped plate, and the second reinforcing plate 4213 is a right-angled triangular plate. One right-angled side of the second reinforcing plate 4213 is attached to the inner wall of the second vertical plate 4212, and the other right-angled side of the second reinforcing plate 4213 is attached to the inner wall of the second horizontal plate 4211. A connecting hole 4214 is provided on the outer wall of the second reinforcing plate 4213 near the second horizontal plate 4211. The connecting hole 4214 passes through the second reinforcing plate 4213, and the end of the second metal wire 423 away from the control button 50 is connected to the second reinforcing plate 4213 through the connecting hole 4214.

[0074] Among them, the second vertical plate 4212 is provided with two opposite outer walls near the end of the second horizontal plate 4211, and the first housing 25 is provided with two opposite side walls away from the end of the second housing 26, and the second rotating holes are provided one-to-one with the second rotating rods 4215. The two second rotating rods 4215 are respectively inserted into the two second rotating holes, and the second rotating rods 4215 can rotate in the second rotating holes so that the second buckle 421 can rotate relative to the barrel 20.

[0075] When the slide plate 52 is pressed, the return spring 51 is compressed and deformed, and the slide plate 52 drives the first metal wire 413 and the second metal wire 423 to move towards the control button 50. Due to the movement of the first metal wire 413, the first buckle 411 can be rotated 90° clockwise around the first rotating rod 4115 through the first fixed pulley 412. At this time, the first horizontal plate 4111 rotates into the installation gap 11, and the first vertical plate 4112 blocks the first notch 23. The second buckle 421 rotates 90° counterclockwise around the second rotating rod 4215. At this time, the second horizontal plate 4211 rotates into the installation gap 11, and the second vertical plate 4212 blocks the second notch 24. At this time, the distance between the first vertical plate 4112 and the second vertical plate 4212 is the predicted distance.

[0076] The prediction spacing ranges from 8mm to 12mm, and in this embodiment, the prediction spacing is 10mm.

[0077] The usage process of the stud welding gun 1 provided in this application is as follows: The stud welding gun 1 is placed perpendicular to the ground, with the pressure plate 70 on the side opposite to the gun barrel 71 in contact with the working surface. The welding end of the stud 2 to be welded is pressed into the insertion cavity 261 with the insertion port facing it. During the insertion of the stud 2 into the cavity 261, it compresses the inclined plate 62, causing the helical spring 61 to compress. When the stud 2 is fully inserted into the insertion cavity 261, the restoring force of the helical spring 61 causes the stud 2 to spring into the rotating cavity, sliding it downwards until the welding end of the stud 2 abuts against the first vertical plate 4112 of the first buckle 411. When the sliding plate 52 is pressed down, the return spring 51 is compressed and deformed, and the sliding plate 52 drives the first metal wire 413 and the second metal wire 423 to move towards the control button 50. Due to the movement of the first metal wire 413, the first latch 411 can rotate 90° clockwise around the first rotating rod 4115 via the first fixed pulley 412. At this time, the first horizontal plate 4111 rotates into the installation gap 11, and the first vertical plate 4112 blocks the first notch 23. The second latch 421 rotates 90° counterclockwise around the second rotating rod 4215. At this time, the second horizontal plate 4211 rotates into the installation gap 11, and the second vertical plate 4212 blocks the second notch 24. The first latch 411 and the second latch 421 will no longer obstruct the sliding of the stud 2 to be welded, and the stud 2 to be welded slides to the replaceable gun head 30. Since the diameter of the small-diameter end of the replaceable gun head 30 is slightly smaller than the diameter of the stud head of the stud 2 to be welded, the welding end of the stud 2 to be welded can slide out to the outside of the replaceable gun head 30, but the stud head to be welded remains in the rotating cavity 251. Release the slide plate 52, and the return spring 51 returns to its natural extension state. The first metal wire 413 and the second metal wire 423 move towards the replaceable gun head 30. Due to the movement of the first metal wire 413 and the second metal wire 423, the first latch 411 and the second latch 421 can rotate to their original positions. The second vertical plate 4212 of the second latch 421 abuts against the head of the stud 2 to be welded, thereby fixing the stud 2 to be welded onto the replaceable gun head 30, and the stud 2 to be welded does not move. Press the welding switch 80, and the direct current enters the head of the stud 2 to be welded through the welding gun wire, and is conducted to the contact point between the stud 2 to be welded and the base material, igniting an electric arc. The heat generated by the electric arc melts the stud 2 to be welded and the base material. After maintaining the electric arc for a certain period of time, the stud 2 to be welded is pressed into the local melting zone of the base material. Cut off the current and wait for the melt to cool before welding the stud 2 to the working surface; then gently lift the stud welding gun 1 upwards, leaving the stud 2 to be welded on the working surface.

[0078] The stud welding gun 1 provided in this application includes a gun body 10, a gun barrel 20, a replaceable gun head 30, and a blocking assembly 40. The gun body 10 is arranged to form a receiving cavity, and the gun barrel 20 is disposed within the receiving cavity. An installation gap 11 is left between the outer wall of the gun barrel 20 and the inner wall of the gun body 10. The gun barrel 20 is arranged to form a receiving cavity 21. An insertion port is provided on the outer side wall near the top of the gun body 10, and the insertion port communicates with the receiving cavity. A through-hole 22 is provided on the outer side wall near the top of the gun barrel 20, and the through-hole 22 communicates with the receiving cavity. The cavity 21 is connected, and the through port 22 is correspondingly set with the insertion port. The through port 22 is connected with the insertion port, and the insertion port is connected with the cavity 21 through the through port 22. The stud 2 to be welded passes through the insertion port and the through port 22 in sequence and is inserted into the cavity 21. The end of the barrel 20 away from the through port 22 has an outlet, which is connected to the cavity 21. One end of the replaceable gun head 30 passes through the muzzle of the gun body 10 and is set in the cavity, and is sleeved on the outer peripheral wall of the end of the barrel 20 with the outlet. The cavity 21 is connected to the outlet. The replaceable gun head 30 is connected to the other end of which extends along the X direction to the outside of the gun body 10. The first end of the blocking component 40 is rotatably disposed in the receiving cavity 21 and near the outlet position of the gun barrel 20. The second end of the blocking component 40 passes through the installation gap 11 and is connected to the control button 50 on the gun body 10. The first end of the blocking component 40 includes a blocking state and an open state. When the first end of the blocking component 40 is in the blocking state, the welding end of the stud 2 to be welded abuts against the first end of the blocking component 40. When the first end of the blocking component 40 is in the open state, pressing the control button 50 causes the first end of the blocking component 40 to rotate by a preset angle, and the welding end of the stud 2 to be welded slides to the outside of the replaceable gun head 30. Compared with traditional welding guns, it is not necessary to manually put the columnar stud on the welding gun when welding studs, which improves the welding speed and efficiency of studs. At the same time, it can reduce the workload of operators and avoid operator fatigue.

[0079] The stud welding gun 1 provided by this utility model has the following advantages: the device has a simple structure, is easy to manufacture, is easy to operate, and saves time and effort.

[0080] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0081] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A stud welding torch, characterized in that: This includes the gun body, barrel, replaceable muzzle, and blocking components; The gun body is enclosed in a cavity, the gun barrel is disposed within the cavity, and an installation gap is left between the outer wall of the gun barrel and the inner wall of the gun body. The gun barrel is enclosed in a cavity, and an insertion port is provided on the outer wall near the top of the gun body. The insertion port communicates with the cavity. An outlet is provided on the outer wall near the top of the gun barrel. The outlet communicates with the cavity. The outlet and the insertion port are correspondingly arranged and communicate with each other. The insertion port communicates with the cavity through the outlet. The stud to be welded is inserted into the cavity by passing through the insertion port and the outlet in sequence. The barrel has an outlet at one end away from the passage, and the outlet communicates with the receiving cavity. One end of the replaceable gun head passes through the muzzle of the gun body and is located in the receiving cavity, and is sleeved on the outer peripheral wall of the barrel with the outlet. The receiving cavity communicates with the replaceable gun head through the outlet. The other end of the replaceable gun head extends along the X direction to the outside of the gun body. The first end of the blocking assembly is rotatably disposed in the receiving cavity and is located near the outlet of the barrel. The second end of the blocking assembly passes through the installation gap and is connected to the control button on the gun body. The first end of the blocking assembly includes a blocking state and an open state. When the first end of the blocking component is in the blocking state, the welding end of the stud to be welded abuts against the first end of the blocking component; when the first end of the blocking component is in the open state, pressing the control button causes the first end of the blocking component to rotate by a preset angle, and the welding end of the stud to be welded slides to the outside of the replaceable gun head.

2. The stud welding gun according to claim 1, characterized in that: The blocking assembly includes a first blocking unit and a second blocking unit. The first end of the first blocking unit and the first end of the second blocking unit are rotatably disposed in the receiving cavity and near the outlet. The first end of the first blocking unit and the first end of the second blocking unit are spaced apart. The second end of the first blocking unit and the second end of the second blocking unit both pass through the installation gap and are connected to the control button.

3. The stud welding gun according to claim 2, characterized in that: The first blocking unit includes a first buckle, a first fixed pulley, and a first metal wire. The first buckle is rotatably disposed in the receiving cavity. A first notch is provided on the outer wall of the gun barrel. The first notch communicates with the receiving cavity and is correspondingly disposed to the first buckle. The first fixed pulley is disposed in the installation gap. One end of the first metal wire is connected to the first buckle, and the other end of the first metal wire passes around the first fixed pulley and is connected to the control button. The first latch includes a blocking state and an open state; When the first latch is in the blocking state, the first latch is located in the receiving cavity, and the first side wall of the first latch is blocked at the first opening; When the first buckle is in the open state, pressing the control button causes the first buckle to rotate at a first preset angle via the first metal ribbon. The first sidewall of the first buckle rotates into the installation gap, and the second sidewall of the first buckle seals the first notch.

4. The stud welding gun according to claim 3, characterized in that: The second blocking unit includes a second latch, a second fixed pulley, and a second metal wire. The second latch is rotatably disposed in the receiving cavity. A second notch is provided on the outer wall of the barrel, and the second notch communicates with the receiving cavity. The second notch is correspondingly disposed with the second latch. The second fixed pulley is disposed in the installation gap. One end of the second metal wire is connected to the second latch, and the other end of the second metal wire passes around the second fixed pulley and is connected to the control button. The second latch includes a blocking state and an open state; When the second latch is in the blocking state, the second latch is located inside the receiving cavity, and the first outer side wall of the second latch is blocked at the first opening; When the second buckle is in the open state, press the control button. The control button drives the second buckle to rotate at a second preset angle via the second metal wire. The first outer side wall of the second buckle rotates into the installation gap, and the second outer side wall of the second buckle seals the second notch.

5. The stud welding gun according to claim 4, characterized in that: The first buckle includes a first horizontal plate, a first vertical plate, and a first reinforcing plate. One end of the first horizontal plate is connected to one end of the first vertical plate. One side of the first reinforcing plate is connected to the inner wall of the first vertical plate. The other side of the first reinforcing plate is connected to the inner wall of the first horizontal plate. The end of the first metal wire facing away from the control button is connected to the first reinforcing plate.

6. The stud welding gun according to claim 5, characterized in that: The second buckle includes a second horizontal plate, a second vertical plate, and a second reinforcing plate. One end of the second horizontal plate is connected to one end of the second vertical plate. One side of the second reinforcing plate is connected to the inner wall of the second vertical plate. The other side of the second reinforcing plate is connected to the inner wall of the second horizontal plate. The end of the second metal wire facing away from the control button is connected to the second reinforcing plate.

7. The stud welding gun according to claim 1, characterized in that: The control button includes a return spring and a sliding plate. One end of the return spring is connected to the outer wall of the handle on the gun body, and the other end of the return spring is connected to the sliding plate. One end of the sliding plate is slidably connected to a first fixed plate on the handle, and the other end of the sliding plate is slidably connected to a second fixed plate on the handle. The sliding plate can move relative to the handle.

8. The stud welding gun according to claim 1, characterized in that: It also includes an ejection assembly disposed at the inner top of the receiving cavity, the ejection assembly being used to eject the stud to be welded.

9. The stud welding gun according to claim 8, characterized in that: The ejection assembly includes a helical spring and a tilting plate. One end of the helical spring is connected to the inner top of the receiving cavity, and the other end of the helical spring is connected to the tilting plate. The end of the tilting plate away from the passage extends downward and beyond the passage, while the end of the tilting plate facing the passage extends upward and is located above the passage. The tilting plate is movable relative to the barrel.

10. The stud welding gun according to claim 1, characterized in that: It also includes a pressure plate and two gun barrels. The two gun barrels are respectively disposed on the opposite two outer side walls of the gun body. The two gun barrels extend along the X direction. The ends of the two gun barrels away from the control button are connected to the side of the pressure plate facing the gun body. The pressure plate has an arc-shaped groove, which is directly opposite to the replaceable gun head.

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