Stud welding gun

Abstract

The invention 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] The invention relates to the technical field of stud welding and installation, in particular to a stud welding gun. Background Art

[0002] At present, studs are a kind of high-strength rigidity fasteners used in various steel structure projects to connect floor beams with reinforced concrete floor slabs. The installation of studs requires the use of arc stud welders and welding guns to weld the corrugated steel plate through, so that the studs, corrugated steel plate and steel components are connected together.

[0003] At present, welding studs requires manually putting the columnar studs on the welding gun and then starting the welding gun for welding. Generally, the construction work area is large and there are many studs to be welded. The traditional welding gun needs to manually put the columnar studs on the welding gun again after welding each stud, resulting in slow stud welding speed, low efficiency, and easy fatigue of operators. Summary of the invention

[0004] In view of the deficiencies in the prior art, the object of the present invention is to provide a stud welding gun, which has the advantages of being able to improve the stud welding speed and welding efficiency, and at the same time, being able to reduce the workload of operators and avoid operator fatigue.

[0005] The above-mentioned inventive object of the present invention is achieved through the following technical solutions: a stud welding gun, comprising a gun body, a gun barrel and a blocking assembly; the gun body is surrounded by a accommodating cavity, the gun barrel is arranged in the accommodating 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 surrounded by a accommodating cavity, a socket is provided on the outer side wall near the top of the gun body, the socket is communicated with the accommodating cavity, a through opening is provided on the outer side wall near the top of the gun barrel, the through opening is communicated with the accommodating cavity, the through opening and the socket are arranged correspondingly, the through opening is communicated with the socket, the socket is communicated with the accommodating cavity through the through opening, and the studs to be welded are sequentially inserted into the accommodating cavity through the socket and the through opening; an outlet is provided at one end of the gun barrel away from the through opening, the outlet is communicated with the accommodating cavity, and one end of a replaceable gun head passes through the muzzle of the gun body The gun body is provided with a first end which is connected to the first end of the gun body and a second end which is connected to the second end of the gun body by a locking mechanism. The first end of the gun body is provided with a first end which is connected to the first end of the gun body and a second end which is connected to the second end of the gun body by a locking mechanism. The ...

[0006] Preferably, in the stud welding gun provided by the present invention, 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 both rotatably disposed in the accommodating cavity and are disposed close to the opening, the first end of the first blocking unit and the first end of the second blocking unit are spaced apart, and the second end of the first blocking unit and the second end of the second blocking unit are both connected to the control button through the installation gap.

[0007] Preferably, in the stud welding gun provided by the present invention, the first blocking unit includes a first buckle, a first fixed pulley and a first metal wire, the first buckle is rotatably arranged in the accommodating cavity, a first notch is opened on the outer wall of the gun barrel, the first notch is communicated with the accommodating cavity, the first notch is arranged corresponding to the first buckle, the first fixed pulley is arranged in the installation gap, one end of the first metal wire is connected with the first buckle, and the other end of the first metal wire bypasses the first fixed pulley and is connected with the control button; the first buckle includes a blocking state and an open state; when the first buckle is in the blocking state, the first buckle is located in the accommodating cavity, and the first side wall of the first buckle is blocked at the first notch; when the first buckle is in the open state, the control button is pressed, and the control button drives the first buckle to rotate a first preset angle through the first metal wire, the first side wall of the first buckle rotates to the installation gap, and the second side wall of the first buckle is blocked at the first notch.

[0008] Preferably, in the stud welding gun provided by the present invention, the second blocking unit includes a second buckle, a second fixed pulley and a second metal wire, the second buckle is rotatably arranged in the accommodating cavity, a second notch is opened on the outer wall of the gun barrel, the second notch is communicated with the accommodating cavity, the second notch is arranged corresponding to the second buckle, the second fixed pulley is arranged in the installation gap, one end of the second metal wire is connected with the second buckle, and the other end of the second metal wire bypasses the second fixed pulley and is connected with the control button; the second buckle includes a blocking state and an open state; when the second buckle is in the blocking state, the second buckle is located in the accommodating cavity, and the first outer side wall of the second buckle is blocked at the first notch; when the second buckle is in the open state, the control button is pressed, and the control button drives the second buckle to rotate a second preset angle through the second metal wire, the first outer side wall of the second buckle rotates to the installation gap, and the second outer side wall of the second buckle is blocked at the second notch.

[0009] Preferably, in the stud welding gun provided by the present invention, 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 side wall of the first vertical plate, the other side of the first reinforcing plate is connected to the inner side wall of the first horizontal plate, and the end of the first metal wire facing away from the control button is connected to the first reinforcing plate.

[0010] Preferably, in the stud welding gun provided by the present invention, 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 side wall of the second vertical plate, the other side of the second reinforcing plate is connected to the inner side wall of the second horizontal plate, and the end of the second metal wire facing away from the control button is connected to the second reinforcing plate.

[0011] Preferably, in the stud welding gun provided by the present invention, the control button includes a return spring and a slide plate, one end of the return spring is connected to the outer side wall of the handle on the gun body, the other end of the return spring is connected to the slide plate, one end of the slide plate is slidably connected to the first fixed plate on the handle, the other end of the slide plate is slidably connected to the second fixed plate on the handle, and the slide plate can move relative to the handle.

[0012] Preferably, the stud welding gun provided by the present invention further comprises an ejection assembly, wherein the ejection assembly is arranged at the inner top end of the accommodating cavity, and the ejection assembly is used to eject the stud to be welded.

[0013] Preferably, in the stud welding gun provided by the present invention, the ejection assembly includes a coil spring and an inclined plate, one end of the coil spring is connected to the inner top end of the accommodating cavity, and the other end of the coil spring is connected to the inclined plate, the inclined plate extends downward from one end of the passage and exceeds the passage, and the inclined plate extends upward toward one end of the passage and is located at the upper part of the passage, and the inclined plate can move relative to the gun barrel.

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

[0015] In summary, the beneficial technical effects of the present invention are as follows: the stud welding gun provided by the present application comprises a gun body, a gun barrel, a replaceable gun head and a blocking assembly; the gun body is surrounded by a accommodating cavity, the gun barrel is arranged in the accommodating 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 surrounded by a accommodating cavity, a socket is opened on the outer wall near the top of the gun body, the socket is connected with the accommodating cavity, a through-opening is opened on the outer wall near the top of the gun barrel, the through-opening is connected with the accommodating cavity, the through-opening and the socket are arranged correspondingly, the through-opening and the socket are connected, the socket is connected with the accommodating cavity through the through-opening, the studs to be welded are successively passed through the socket and the through-opening and inserted into the accommodating cavity; an outlet is opened at one end of the gun barrel away from the through-opening, the outlet is connected with the accommodating cavity, one end of the replaceable gun head passes through the muzzle of the gun body and is arranged in the accommodating cavity, and is sleeved on the outer peripheral wall of one end of the gun barrel with the outlet, the accommodating cavity is connected with the replaceable gun head through the outlet The gun head is connected, and the other end of the replaceable cavity head extends to the outside of the gun body along the X direction. The first end of the blocking component is rotatably arranged in the accommodating cavity and is arranged near the exit position of the gun barrel. The second end of the blocking component is connected to the control button on the gun body through the installation gap, and the first end of the blocking component 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, the control button is pressed, and the control button drives the first end of the blocking component to rotate a preset angle, and the welding end of the stud to be welded slides to the outside of the replaceable gun head; compared with the traditional welding gun, there is no need to manually put the columnar stud on the welding gun when welding the stud, which improves the stud welding speed and welding efficiency. At the same time, it can reduce the workload of the operator and avoid operator fatigue. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of a stud welding gun provided by an embodiment of the present invention.

[0017] Figure 2 It is a front view of the stud welding gun (when the control button is pressed) provided by an embodiment of the present invention.

[0018] Figure 3 It is a schematic structural diagram of a replaceable gun head in a stud welding gun provided in an embodiment of the present invention.

[0019] Figure 4 The present invention is a schematic diagram of the connection structure between the gun rod and the pressure plate in the stud welding gun provided by the embodiment of the present invention.

[0020] Figure 5 It is a schematic diagram of the connection structure of the ejection assembly in the stud welding gun provided by an embodiment of the present invention.

[0021] Figure 6 It is a schematic structural diagram of a first bayonet in a stud welding gun provided in an embodiment of the present invention.

[0022] Figure 7 It is a schematic structural diagram of a second bayonet in a stud welding gun provided in an embodiment of the present invention.

[0023] Figure 8 AA is a cross-sectional view of a stud welding gun provided in an embodiment of the present invention.

[0024] Fig. 9 FIG. BB is a cross-sectional view of a stud welding gun provided in an embodiment of the present invention.

[0025] Fig.10 It is a schematic structural diagram of a gun chamber in a stud welding gun provided in an embodiment of the present invention.

[0026] In the figure, 1, stud welding gun; 10, gun body; 11, installation gap; 12, handle; 121, first fixing plate; 122, second fixing plate; 13, partition; 20, gun chamber; 21, accommodating chamber; 22, through-mouth; 23, first notch; 24, second notch; 25, first shell; 251, rotating cavity; 252, external thread; 26, second shell; 261, inserting cavity; 30, replaceable gun head; 31, hollow cylinder; 32, hollow truncated cone column; 321, arc-shaped spring piece; 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, reset spring; 52, slide plate; 60, ejection assembly; 61, spiral spring; 62, tilting plate; 70, pressure plate; 701, arc groove; 71, gun barrel; 80, welding switch; 81, welding wire; 90, tilted transition plate; 2, bolts to be welded. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0028] Reference Figure 1 and Figure 2, a stud welding gun 1 disclosed in the present invention comprises a gun body 10, a gun barrel 20 and a blocking assembly 40; the gun body 10 is surrounded by a receiving cavity, the gun barrel 20 is arranged in 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 surrounded by a receiving cavity 21, a socket is provided on the outer side wall near the top of the gun body 10, the socket is communicated with the receiving cavity, a through-port 22 is provided on the outer side wall near the top of the gun barrel 20, the through-port 22 is communicated with the receiving cavity 21, the through-port 22 and the socket are arranged correspondingly, the through-port 22 is communicated with the socket, the socket is communicated with the receiving cavity 21 through the through-port 22, and the studs 2 to be welded pass through the socket and the through-port 22 in sequence and are inserted into the receiving cavity 21.

[0029] Specifically, Figure 1 Taking the position shown as an example, a socket is provided on the left outer wall near the top of the gun body 10, and a passage 22 is provided on the left outer wall near the top of the gun chamber 20, and the passage 22 is connected to the socket.

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

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

[0032] Continue to refer to Figure 1 and Fig.10 In this embodiment, the gun chamber 20 includes a cylindrical first shell 25 and a rectangular second shell 26. The first shell 25 is surrounded by a rotating cavity 251, and the second shell 26 is surrounded by an insertion cavity 261. The second shell 26 is arranged on the outer peripheral wall close to one end of the first shell 25. The rotating cavity 251 is connected to the insertion cavity 261. The rotating cavity 251 and the insertion cavity 261 together constitute the accommodating cavity 21. Figure 1Taking the orientation shown as an example, the insertion cavity 261 and the rotation cavity 251 are arranged in sequence from top to bottom, and a through-port 22 is provided at the left end of the second shell 26, and the through-port 22 is communicated with the insertion cavity 261. In this embodiment, an outlet is provided at the end of the gun barrel 20 away from the through-port 22, and the outlet is communicated with the accommodating cavity 21. One end of the replaceable gun head 30 passes through the muzzle of the gun body 10 and is arranged in the accommodating cavity, and is sleeved on the outer peripheral wall of the end of the gun barrel 20 with the outlet. The accommodating cavity 21 is communicated with the replaceable gun head 30 through the outlet, and the other end of the replaceable cavity head extends to the outside of the gun body 10 along the X direction. The first end of the blocking component 40 is rotatably arranged in the accommodating cavity 21 and is arranged 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 blocking component 40 The first end of the blocking assembly 40 includes a blocking state and an open state; when the first end of the blocking assembly 40 is in the blocking state, the welding end of the stud 2 to be welded abuts against the first end of the blocking assembly 40; when the first end of the blocking assembly 40 is in the open state, the control button 50 is pressed, and the control button 50 drives the first end of the blocking assembly 40 to rotate 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, there is no need to manually put the columnar stud on the welding gun when welding the stud, which improves the stud welding speed and welding efficiency. At the same time, it can reduce the workload of the operator and avoid operator fatigue.

[0033] The preset angle is 90°. An outlet is formed at one end of the first shell 25 away from the second shell 26 , and the outlet is communicated with the rotating cavity 251 .

[0034] By providing a replaceable gun head 30 , the replaceable gun head 30 can be suitable for welding studs of various specifications, such as the size table of the replaceable gun head 30 .

[0035] Interchangeable Gun Tip Size Table

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

[0037] Specifically, the first end of the blocking assembly 40 is rotatably disposed in the rotating cavity 251 and is disposed near the exit position of the gun chamber 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 conical column 32. The large diameter end of the hollow conical column 32 is connected to the end of the hollow cylinder 31, and the hollow cylinder 31 is communicated with the hollow conical column 32. An external thread 252 is provided on the outer circumferential wall of the end with an opening of the first shell 25, and an internal thread matched with the external thread 252 is provided on the inner circumferential wall of the hollow cylinder 31. 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 circumferential wall of the end with an opening of the gun barrel 20, and the hollow conical column 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 conical column 32, and the diameter of the bolt head of the stud 2 to be welded is larger than the diameter of the small diameter end of the hollow conical column 32, and smaller than the diameter of the large diameter end of the hollow conical column 32.

[0041] Specifically, the center line of the hollow cylinder 31 and the center line of the hollow conical column 32 are both arranged parallel to the X direction. In some practicable embodiments, the center line of the hollow cylinder 31 and the center line of the hollow conical column 32 are arranged collinearly.

[0042] The hollow conical column 32 includes a plurality of arc-shaped spring pieces 321 , one end of each of which is connected to the end of the hollow cylinder 31 , and the plurality of 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 conical column 32, the bolt head of the stud 2 to be welded stays in the rotating cavity 251. When the welding of 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 piece 321, the bolt 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 further includes an ejection assembly 60 , which is disposed at the inner top end of the accommodating cavity 21 , and is used to eject the stud 2 to be welded.

[0045] Specifically, Figure 1 Taking the shown orientation 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 the present embodiment, the ejection assembly 60 includes a coil spring 61 and an inclined plate 62, one end of the coil spring 61 is connected to the inner top end of the accommodating chamber 21, and the other end of the coil spring 61 is connected to the inclined plate 62, one end of the inclined plate 62 away from the opening 22 extends downward and exceeds the opening 22, and one end of the inclined plate 62 toward the opening 22 extends upward and is located at the upper part of the opening 22, and the inclined plate 62 can move relative to the gun barrel 20.

[0047] Specifically, Figure 1 Taking the orientation shown in FIG. 2 as an example, the center line of the coil spring 61 is arranged parallel to the Y direction, the top end of the coil spring 61 is connected to the inner top end of the insertion cavity 261, and the bottom end of the coil 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 at the upper part of the opening 22, and the right end of the inclined plate 62 exceeds the opening 22. During use, when the stud 2 to be welded is inserted into the insertion cavity 261, the spiral spring 61 is compressed by squeezing the inclined plate 62. After the stud 2 to be welded is completely inserted into the insertion cavity 261, the spiral spring 61 applies a restoring force to the stud 2 to be welded through the inclined plate 62, and the stud 2 to be welded is ejected into the rotating cavity 251. The stud 2 to be welded 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 further includes a pressing plate 70 and two gun rods 71. The two gun rods 71 ​​are respectively arranged on two opposite outer side walls of the gun body 10. The two gun rods 71 ​​extend along the X direction. One end of the two gun rods 71 ​​away from the control button 50 is connected to the side of the pressing plate 70 facing the gun body 10. A preset distance is spaced between the pressing plate 70 and the replaceable gun head 30. An arc groove 701 is opened on the pressing plate 70, and the arc groove 701 is arranged opposite to the replaceable gun head 30.

[0049] Specifically, the gun rod 71 is connected to the outer wall of the gun body 10 through fixing screws, and the pressing plate 70 is arranged perpendicular to the X direction.

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

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

[0052] The first fixing plate 121 and the second fixing plate 122 are both disposed perpendicularly to the slide plate 52 .

[0053] Furthermore, in the present embodiment, a welding switch 80 for controlling welding is provided on one side of the handle 12 on which the return spring 51 is installed, and one end of the blocking component 40 that faces the replaceable gun head 30 is connected to an external stud welder through a welding wire 81, 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 and is inserted into the accommodating cavity 21, and is connected to the end of the blocking component 40 that faces the replaceable gun head 30, and one end of the welding wire 81 that faces away from the gun barrel 20 extends to the outside of the gun body 10 and is connected to an external stud welder.

[0054] During use, the welding switch 80 is pressed, and direct current enters the bolt head of the to-be-welded bolt 2 through the welding gun wire, and is conducted to the contact point between the to-be-welded bolt 2 and the base material, thereby stimulating an arc; the heat generated by the arc melts the to-be-welded bolt 2 and the base material, and after maintaining a certain arc burning time, the to-be-welded bolt 2 is pressed into the local melting zone of the base material; the current is cut off, and after waiting for the melting and cooling, the to-be-welded bolt 2 can be welded to the working plane.

[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 both rotatably disposed in the accommodating 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 from each other, and 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 installation gap 11.

[0056] Specifically, the first end of the first blocking unit 41 and the first end of the second blocking unit 42 are both rotatably disposed in the rotating cavity 251. Figure 1 Taking the illustrated position as an example, the first end of the first blocking unit 41 and the first end of the second blocking unit 42 are spaced 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 chamber 20 , is inserted into the accommodating cavity 21 , and is connected to the first end of the second blocking unit 42 .

[0058] Furthermore, in the present embodiment, the first blocking unit 41 includes a first buckle 411, a first fixed pulley 412 and a first metal wire 413. The first buckle 411 is rotatably arranged in the accommodating chamber 21. A first notch 23 is provided on the outer wall of the barrel 20. The first notch 23 is communicated with the accommodating chamber 21. The first notch 23 is arranged corresponding to the first buckle 411. The first fixed pulley 412 is arranged in the installation gap 11. One end of the first metal wire 413 is connected to the first buckle 411. The other end of the first metal wire 413 bypasses the first fixed pulley 412 and connects to the control The first buckle 411 includes a blocking state and an opening state; when the first buckle 411 is in the blocking state, the first buckle 411 is located in the accommodating cavity 21, and the first side wall of the first buckle 411 is blocked at the first notch 23; when the first buckle 411 is in the opening state, the control button 50 is pressed, and the control button 50 drives the first buckle 411 to rotate a first preset angle through the first metal wire 413, and the first side wall of the first buckle 411 rotates to the installation gap 11, and the second side wall of the first buckle 411 is blocked at the first notch 23. Specifically, the first preset angle is 90°, and the first buckle 411 is rotatably arranged in the rotating cavity 251 to Fig.10 Taking the illustrated position as an example, a first notch 23 is formed on the outer peripheral wall of the bottom end of the first shell 25 , and the first notch 23 is communicated with the rotating cavity 251 .

[0059] The end of the first metal wire 413 away from the first buckle 411 passes around the first fixed pulley 412 and is connected 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, the other side of the first reinforcing plate 4113 is connected to the inner wall of the first horizontal plate 4111, and the 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 side wall of the first buckle 411 is the first horizontal plate 4111 , and the second side wall 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 is connected to the first horizontal plate 4111 to form an L-shaped plate, and the first reinforcing plate 4113 is a right-angled triangle plate. One of the right-angled sides 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 at one end close to the first horizontal plate 4111, and the mounting hole 4114 passes through the first reinforcing plate 4113. The end of the first metal wire 413 facing away from the control button 50 is connected to the first reinforcing plate 4113 through the mounting hole 4114.

[0063] Among them, first rotating rods 4115 are arranged on the two opposite outer walls of one end of the first vertical plate 4112 close to the first horizontal plate 4111, and first rotating holes are opened on the two opposite side walls of the end of the first shell 25 away from the second shell 26. The first rotating holes and the first rotating rods 4115 are arranged in a one-to-one correspondence, and the two first rotating rods 4115 are respectively inserted into the two first rotating holes. The first rotating rod 4115 can rotate in the first rotating hole so that the first buckle 411 can rotate relative to the gun barrel 20.

[0064] In order to prevent the welding end of the bolt 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, and 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 buckle 411 is in the open state, the bolt 2 to be welded slides sequentially through the inclined transition plate 90 , the first buckle 411 and the second buckle 421 to the replaceable gun head 30 .

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

[0067] Furthermore, in the present embodiment, the second blocking unit 42 includes a second buckle 421, a second fixed pulley 422 and a second metal wire 423, the second buckle 421 is rotatably arranged in the accommodating chamber 21, a second notch 24 is provided on the outer wall of the barrel 20, the second notch 24 is communicated with the accommodating chamber 21, the second notch 24 is arranged corresponding to the second buckle 421, the second fixed pulley 422 is arranged in the installation gap 11, one end of the second metal wire 423 is connected to the second buckle 421, and the other end of the second metal wire 423 bypasses the second fixed pulley 422 and connects to the control button The second buckle 421 includes a blocking state and an open state; when the second buckle 421 is in the blocking state, the second buckle 421 is located in the accommodating cavity 21, and the first outer side wall of the second buckle 421 is blocked at the first notch 23; when the second buckle 421 is in the open state, the control button 50 is pressed, and the control button 50 drives the second buckle 421 to rotate a second preset angle through the second metal wire 423, and the first outer side wall of the second buckle 421 rotates into the installation gap 11, and the second outer side wall of the second buckle 421 is blocked at the second notch 24.

[0068] Specifically, the second preset angle is 90°. Specifically, the second buckle 421 is rotatably disposed in the rotating cavity 251. Fig.10 Taking the shown orientation as an example, a second notch 24 is opened on the outer peripheral wall of the bottom end of the first shell 25, and 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, and the second buckle 421 is located on the side of the first buckle 411 facing the replaceable gun head 30, and the first buckle 411 and the second buckle 421 are spaced apart.

[0069] The end of the second metal wire 423 away from the second buckle 421 passes around the second fixed pulley 422 and is connected 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 chamber 20 , is inserted into the accommodating 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, the other side of the second reinforcing plate 4213 is connected to the inner wall of the second horizontal plate 4211, and the end of the second metal wire 423 facing away from the control button 50 is connected to the second reinforcing plate 4213.

[0072] It should be noted that the first outer side wall of the second buckle 421 is the second horizontal plate 4211 , and the second outer side 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 is connected to the second horizontal plate 4211 to form an L-shaped plate, and the second reinforcing plate 4213 is a right-angled triangle plate. One of the right-angled sides of the second reinforcing plate 4213 is attached and connected to the inner wall of the second vertical plate 4212, and the other right-angled side of the second reinforcing plate 4213 is attached and connected 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 at one end close to the second horizontal plate 4211, and the connecting hole 4214 passes through the second reinforcing plate 4213. The end of the second metal wire 423 facing away from the control button 50 is connected to the second reinforcing plate 4213 through the connecting hole 4214.

[0074] Among them, second rotating rods 4215 are arranged on the two opposite outer walls of one end of the second vertical plate 4212 close to the second horizontal plate 4211, and second rotating holes are opened on the two opposite side walls of the end of the first shell 25 away from the second shell 26. The second rotating holes and the second rotating rods 4215 are arranged in a one-to-one correspondence, and the two second rotating rods 4215 are respectively inserted into the two second rotating holes. The second rotating rod 4215 can rotate in the second rotating holes so that the second buckle 421 can rotate relative to the gun barrel 20.

[0075] When the slide plate 52 is pressed down, the return spring 51 is squeezed and deformed, and the slide plate 52 drives the first metal wire 413 and the second metal wire 423 to move toward one end of 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 is blocked at 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 is blocked at the second notch 24. At this time, the first vertical plate 4112 and the second vertical plate 4212 are spaced by the predicted spacing.

[0076] The predicted spacing ranges from 8 mm to 12 mm. In this embodiment, the predicted spacing is 10 mm.

[0077] The use process of the stud welding gun 1 provided by the present application is as follows: the stud welding gun 1 is placed vertically on the ground, the side of the pressure plate 70 away from the gun barrel 71 contacts the working surface, and the welding end of the stud 2 to be welded is pressed into the insertion cavity 261 facing the socket. The stud 2 to be welded squeezes the inclined plate 62 during the insertion into the insertion cavity 261 to compress the coil spring 61. When the stud 2 to be welded is completely inserted into the insertion cavity 261, the restoring force of the coil spring 61 causes the stud 2 to be welded to bounce into the rotating cavity, and the stud 2 to be welded slides downward until the welding end of the stud 2 to be welded abuts against the first vertical plate 4112 of the first buckle 411. When the slide plate 52 is pressed down, the reset spring 51 is squeezed and deformed, and the slide plate 52 drives the first metal wire 413 and the second metal wire 423 to move toward one end of 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, the first vertical plate 4112 blocks the first notch 23, and 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, the second vertical plate 4212 blocks the second notch 24, and the first buckle 411 and the second buckle 421 will no longer block 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 bolt head diameter of the stud 2 to be welded, the welding end of the stud 2 to be welded can slide out of the replaceable gun head 30, but the bolt head to be welded stays in the rotating cavity 251. Release the slide plate 52, the reset spring 51 returns to the natural extension state, and the first metal wire 413 and the second metal wire 423 move toward the replaceable gun head 30; due to the movement of the first metal wire 413 and the second metal wire 423, the first buckle 411 and the second buckle 421 can be rotated to the original position, and the second vertical plate 4212 of the second buckle 421 abuts against the bolt head of the stud 2 to be welded, so as to fix the stud 2 to be welded on 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 bolt head of the stud 2 to be welded through the welding gun wire, and is transmitted to the contact point between the stud 2 to be welded and the base material, and the arc is ignited; the heat generated by the arc melts the stud 2 to be welded and the base material, and after a certain arc burning time, the stud 2 to be welded is pressed into the local melting zone of the base material. Cut off the current, wait for the stud 2 to be welded to the working plane after melting and cooling; then gently lift the stud welding gun 1 upwards, and the stud 2 to be welded remains on the working plane.

[0078] The stud welding gun 1 provided in the present application comprises a gun body 10, a gun barrel 20, a replaceable gun head 30 and a blocking assembly 40; the gun body 10 is surrounded by a receiving cavity, the gun barrel 20 is arranged in 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 surrounded by a receiving cavity 21, a socket is opened on the outer wall near the top of the gun body 10, the socket is connected to the receiving cavity, and a through-hole 22 is opened on the outer wall near the top of the gun barrel 20, and the through-hole 22 is connected to the receiving cavity. The receiving cavity 21 is connected, the port 22 is correspondingly arranged with the socket, the port 22 is connected with the socket, the socket is connected with the receiving cavity 21 through the port 22, and the stud 2 to be welded passes through the socket and the port 22 in sequence and is inserted into the receiving cavity 21; an outlet is opened at one end of the gun barrel 20 away from the port 22, and the outlet is connected with the receiving cavity 21, one end of the replaceable gun head 30 passes through the muzzle of the gun body 10 and is arranged in the receiving cavity, and is sleeved on the outer peripheral wall of one end of the gun barrel 20 with the outlet, and the receiving cavity 21 passes through the outlet It is connected to the replaceable gun head 30, and the other end of the replaceable cavity head extends to the outside of the gun body 10 along the X direction. The first end of the blocking component 40 is rotatably arranged in the accommodating cavity 21 and is arranged near the exit position of the gun chamber 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, the control button 50 is pressed, and the control button 50 drives the first end of the blocking component 40 to rotate 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, there is no need to manually put the columnar stud on the welding gun when welding the stud, which improves the stud welding speed and welding efficiency. At the same time, it can reduce the workload of the operator and avoid operator fatigue.

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

[0080] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0081] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A stud welding gun, characterized in that: It includes a gun body, a gun chamber, a replaceable gun head and a blocking assembly; The gun body is surrounded by a receiving cavity, the gun barrel is arranged in 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 surrounded by a receiving cavity, a socket is provided on the outer wall near the top of the gun body, the socket is communicated with the receiving cavity, a through opening is provided on the outer wall near the top of the gun barrel, the through opening is communicated with the receiving cavity, the through opening and the socket are arranged correspondingly, the through opening is communicated with the socket, the socket is communicated with the receiving cavity through the through opening, and the bolts to be welded pass through the socket and the through opening in sequence and are inserted into the receiving cavity; An outlet is provided at one end of the gun barrel away from the through opening, and the outlet is communicated with the accommodating cavity. One end of a replaceable gun head passes through the muzzle of the gun body and is arranged in the accommodating cavity, and is sleeved on the outer peripheral wall of the end of the gun barrel with the outlet. The accommodating cavity is communicated with the replaceable gun head through the outlet, and the other end of the replaceable cavity head extends to the outside of the gun body along the X direction. The first end of the blocking component is rotatably arranged in the accommodating cavity and is arranged 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 includes a blocking state and an open state. When the first end of the blocking assembly is in a 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 an open state, the control button is pressed, and the control button drives the first end of the blocking assembly to rotate 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, wherein the first end of the first blocking unit and the first end of the second blocking unit are both rotatably disposed in the accommodating cavity and are disposed close to the opening, the first end of the first blocking unit and the first end of the second blocking unit are spaced apart, and the second end of the first blocking unit and the second end of the second blocking unit are both connected to the control button through the installation gap.

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 arranged in the accommodating cavity, a first notch is opened on the outer wall of the gun barrel, the first notch is communicated with the accommodating cavity, the first notch is arranged corresponding to the first buckle, the first fixed pulley is arranged 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 bypasses 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, the first buckle is located in the accommodating cavity, and the first side wall of the first buckle is blocked at the first notch; When the first buckle is in the open state, the control button is pressed, and the control button drives the first buckle to rotate to a first preset angle through the first metal wire, the first side wall of the first buckle rotates into the installation gap, and the second side wall of the first buckle is blocked at the first notch.

4. The stud welding gun according to claim 3, characterized in that: The second blocking unit includes a second buckle, a second fixed pulley and a second metal wire, the second buckle is rotatably arranged in the accommodating cavity, a second notch is opened on the outer wall of the gun barrel, the second notch is communicated with the accommodating cavity, the second notch is arranged corresponding to the second buckle, the second fixed pulley is arranged in the installation gap, one end of the second metal wire is connected to the second buckle, and the other end of the second metal wire bypasses the second fixed pulley and is connected to the control button; The second buckle includes a blocking state and an open state; When the second buckle is in the blocking state, the second buckle is located in the accommodating cavity, and the first outer side wall of the second buckle is blocked at the first notch; When the second buckle is in the open state, the control button is pressed, and the control button drives the second buckle to rotate to a second preset angle through the second metal ribbon, the first outer side wall of the second buckle rotates into the installation gap, and the second outer side wall of the second buckle is blocked at 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 side wall of the first vertical plate, the other side of the first reinforcing plate is connected to the inner side wall of the first horizontal plate, and 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 side wall of the second vertical plate, the other side of the second reinforcing plate is connected to the inner side wall of the second horizontal plate, and 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 slide plate, one end of the return spring is connected to the outer wall of the handle on the gun body, the other end of the return spring is connected to the slide plate, one end of the slide plate is slidably connected to the first fixed plate on the handle, the other end of the slide plate is slidably connected to the second fixed plate on the handle, and the slide 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, which is arranged at the inner top end of the accommodating cavity and is used to eject the bolt to be welded.

9. The stud welding gun according to claim 8, characterized in that: The ejection assembly includes a coil spring and an inclined plate, one end of the coil spring is connected to the inner top end of the accommodating cavity, and the other end of the coil spring is connected to the inclined plate. The inclined plate extends downward from one end of the through-hole and exceeds the through-hole, and the inclined plate extends upward toward one end of the through-hole and is located at the upper part of the through-hole. The inclined plate can move relative to the gun barrel.

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

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