A handheld high frequency welding machine tool

Abstract

The present invention relates to a handheld high-frequency welding tool, comprising a base frame, a welding gun base, a welding gun bracket and a workpiece clamp, wherein the base frame is provided with a workpiece clamp; the welding gun bracket is movably arranged on the base frame through the welding gun base, and the welding gun bracket can move on the base frame relative to the workpiece clamp. The present invention is easy to operate and can be operated with one hand; the welding process is stable and the welding point is heated evenly. Especially when the handheld welding gun head is bulky, the advantages of this tool will be more obvious.

Description

Technical Field

[0001] The invention relates to the technical field of high-frequency welding machine tooling, and in particular to a handheld high-frequency welding machine tooling. Background Art

[0002] When welding with a larger and heavier handheld high-frequency welder, you need to hold the handle of the welding gun with both hands to weld the workpiece. The solder needs to be placed on the welding point in advance, which will make it impossible to adjust or add solder to the welding point as needed during the welding process. The welding process is also unstable and the welding quality is difficult to control. In addition, traditional handheld high-frequency welders have high requirements for human operation, the welding process is prone to human fluctuations, the operation is difficult, the labor intensity is high, and the consistency of welding is difficult to ensure. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a handheld high-frequency welding machine tool, including a base frame, a welding gun base, a welding gun bracket and a workpiece clamp, wherein the base frame is provided with a workpiece clamp; the welding gun bracket is movably arranged on the base frame through the welding gun base, and the welding gun bracket can move on the base frame relative to the workpiece clamp.

[0004] Preferably, the base frame is provided with an arc-shaped guide rail, and the arc-shaped guide rail is arranged along the outer circumference of the workpiece clamp; the welding gun base is arranged on the base frame and can move circumferentially relative to the workpiece clamp along the arc-shaped guide rail;

[0005] The welding gun bracket comprises a sliding seat and a welding gun clamping mechanism for clamping a handheld high-frequency welding machine. The welding gun clamping mechanism is installed on the sliding seat. The sliding seat is slidably arranged on the welding gun base and can move radially relative to the workpiece clamp.

[0006] Preferably, the sliding seat comprises a sliding body and at least two sliding rods spaced apart and fixedly arranged on the sliding body;

[0007] The welding gun base is a fan-shaped frame, and two arc sections of the fan-shaped frame are respectively provided with sliding grooves for the sliding rod to slide, and the two ends of the sliding rod are respectively arranged on the sliding grooves of the two arc sections.

[0008] Preferably, a spring limiting hole is also provided on the short side arc segment of the fan-shaped frame;

[0009] The sliding body also includes a spring mounting rod, on which a return spring is sleeved, one end of the spring mounting rod is located in the fan-shaped frame and fixedly connected to the sliding body; the other end passes through the spring limiting hole and points to the workpiece clamp.

[0010] Preferably, the welding gun clamping mechanism includes at least one clamping hoop, and the clamping hoop includes a first clamping member and a second clamping member that can form a ring, the first clamping member is fixed to the sliding body, one end of the second clamping member is axially connected to one end of the first clamping member; the other end of the second clamping member can be clamped or connected to the other end of the first clamping member by a threaded fastener.

[0011] Preferably, at least two concentric arc-shaped guide rails are provided on the base frame, and a plurality of rollers are provided at the lower end of the welding gun base, and the plurality of rollers are respectively and rollingly provided on the two arc-shaped guide rails.

[0012] Preferably, a manual device is further included, wherein the manual device is movably arranged on the base frame and movably connected to the welding gun bracket.

[0013] Preferably, the manual device includes a pillar, a support, a manual rod and a connecting rod mechanism, the pillar is fixed on the base frame, the support is rotatably arranged on the pillar, the connecting rod mechanism includes at least two connecting rods axially connected in sequence, one end of the connecting rod mechanism and one end of the manual rod are respectively axially connected to the support, the other end of the manual rod extends to the outside of the base frame, and the other end of the connecting rod mechanism is axially connected to the lower end of the welding gun bracket.

[0014] Preferably, the workpiece clamp comprises at least one or two clamps fixed on the base frame, and the clamping openings of the two clamps are arranged correspondingly up and down.

[0015] Preferably, the clamp comprises a fixed clamp, a movable clamp and a pressure rod, the fixed clamp is fixed to the base frame, one end of the movable clamp is rotatably connected to the fixed clamp; one end of the fixed clamp is provided with a spring mounting hole, a spring is provided in the spring mounting hole; a pull rod passes through the other end of the movable clamp and the spring mounting hole in sequence and is rotatably connected to the pressure rod;

[0016] Corresponding workpiece fixing grooves are arranged on the inner side walls of the fixed clamp and the movable clamp.

[0017] Compared with the prior art, the present invention has the following technical effects:

[0018] The invention is easy to operate and can be operated with one hand; the welding process is stable and the welding point is heated evenly. Especially when the handheld welding gun head is bulky, the advantages of this tooling will be more obvious. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0020] Figure 1 A structural schematic diagram of a handheld high-frequency welding tool provided for a preferred embodiment of the present invention;

[0021] Figure 2 A partially disassembled diagram of a base frame and a manual device provided for a preferred embodiment of the present invention;

[0022] Figure 3 An assembly diagram of a chassis and a manual device provided for a preferred embodiment of the present invention;

[0023] Figure 4 A partially disassembled view of a welding gun base provided for a preferred embodiment of the present invention;

[0024] Figure 5 An assembly diagram of a welding gun base provided for a preferred embodiment of the present invention;

[0025] Figure 6 A partially disassembled view of a welding gun bracket provided for a preferred embodiment of the present invention;

[0026] Figure 7 An assembly diagram of a welding gun bracket provided for a preferred embodiment of the present invention;

[0027] Figure 8 A disassembled diagram of a clamp provided for a preferred embodiment of the present invention;

[0028] Fig. 9 An assembly diagram of a clamp provided for a preferred embodiment of the present invention;

[0029] Fig.10 A schematic structural diagram of the coaxial lines of the clamping openings of the upper and lower clamps provided in a preferred embodiment of the present invention;

[0030] Fig.11 A schematic diagram of a handheld high-frequency welding machine tool in a working state provided by a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0031] The following will be combined Figures 1 to 11A handheld high-frequency welding machine tool provided by the present invention is described in detail. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation method and a specific operation process are given. However, the protection scope of the present invention is not limited to the following embodiments. Those skilled in the art can modify and polish it without changing the spirit and content of the present invention.

[0032] Please refer to Figures 1 to 11 A handheld high-frequency welding tool comprises a base frame 2, a welding gun base 4, a welding gun bracket 5 and a workpiece clamp 3. The base frame 2 is provided with the workpiece clamp 3; the welding gun bracket 5 is movably arranged on the base frame 2 through the welding gun base 4, and the welding gun bracket 5 can move on the base frame 2 relative to the workpiece clamp 3. In the present invention, the welding gun bracket 5 is used to clamp the handheld high-frequency welding machine 7 (the handheld high-frequency welding machine 7 is also called a handheld high-frequency welding gun), and the position of the welding gun bracket 5 can be adjusted according to the specific welding situation, so as to adjust the position of the handheld high-frequency welding machine 7.

[0033] In the present invention, the position of the welding gun bracket 5 on the base frame 2 can be adjusted directly by hand, or by the manual device 1 (i.e., the manual device 1 is operated by hand to drive the welding gun bracket 5 to move on the base frame 2). The present invention does not limit this. Whether the welding gun bracket 5 is directly operated by hand or the manual device 1 is directly operated by hand, it can be operated with one hand. This embodiment takes the adjustment of the position of the welding gun bracket 5 on the base frame 2 by the manual device 1 as an example for detailed description.

[0034] The present invention does not impose any specific restrictions on how the welding gun bracket 5 moves relative to the workpiece clamp 3, and can be set according to actual welding requirements. In this embodiment, the welding gun bracket 5 can move both circumferentially and radially relative to the workpiece clamp 3. Specifically:

[0035] Please refer to Figure 2 and Figure 3 The base frame 2 is a fan-shaped three-dimensional frame, that is, the base frame 2 includes two parallel fan-shaped frames, which are fixedly connected by columns. The upper fan-shaped frame includes two concentric arc-shaped guide rails 201, that is, a long arc-shaped guide rail 201b and a short arc-shaped guide rail 201a, and the two arc-shaped guide rails 201 are arranged along the periphery of the workpiece clamp 3, that is, the arc-shaped guide rails 201 face the workpiece clamp 3. In this embodiment, the workpiece clamp 3 can be located at the center of the upper fan-shaped frame, or on an arc concentric with the arc-shaped guide rails.

[0036] Please refer to Figure 4 and Figure 5The welding gun base 4 can be slidably arranged on the arc-shaped guide rail 201, or can be rolled on the arc-shaped guide rail 201, and the present invention does not make specific restrictions on this. In this embodiment, a plurality of rollers 406 are arranged at the lower end of the welding gun base 4, and the plurality of rollers 406 are respectively rolled on the two arc-shaped guide rails 201, that is, the two arc-shaped guide rails 201 are respectively provided with roller mounting holes 404, and the rollers 406 are mounted on the roller mounting holes 404 through roller pins 405. In this embodiment, the welding gun base 4 can move circumferentially relative to the workpiece clamp 3 along the arc-shaped guide rail 201.

[0037] Please refer to Figure 6 and Figure 7 The welding gun bracket 5 includes a sliding seat and a welding gun clamping mechanism for clamping the welding gun. The welding gun clamping mechanism is installed on the sliding seat. The sliding seat is slidably arranged on the welding gun base 4 and can move radially relative to the workpiece clamp 3.

[0038] Furthermore, the sliding seat includes a sliding body 503 and at least two sliding rods 502 spaced apart and fixedly disposed on the sliding body 503;

[0039] The welding gun base 4 is a fan-shaped frame, and two arc segments of the fan-shaped frame are respectively provided with slide grooves 402 for the slide bar 502 to slide, and the two ends of the slide bar 502 are respectively arranged on the slide grooves 402 of the two arc segments. In this embodiment, the two arc segments of the fan-shaped frame are both facing the workpiece clamp 3.

[0040] A spring limiting hole 403 is also provided on the arc section of the short side of the fan-shaped frame;

[0041] The sliding body 503 also includes a spring mounting rod 505, on which a return spring 506 is sleeved. One end of the spring mounting rod 505 is located in the fan-shaped frame of the welding gun base 4 and is fixedly connected to the sliding body 503; the other end passes through the spring limiting hole 403 and points to the workpiece clamp 3.

[0042] The welding gun base 4 of the above embodiment can move circumferentially relative to the workpiece clamp 3 along the arc-shaped guide rail 201, and the welding gun bracket 5 can move radially relative to the workpiece clamp 3 along the sliding seat. Of course, the welding gun base 4 can also move radially relative to the workpiece clamp 3 along the arc-shaped guide rail 201, and the welding gun bracket 5 can move circumferentially relative to the workpiece clamp 3 along the sliding seat. The specific structure is similar to the above embodiment and will not be repeated here.

[0043] The welding gun clamping mechanism belongs to the mature technology in this field, and the present invention does not impose any specific limitation on this. In this embodiment, the welding gun clamping mechanism includes at least one clamping hoop 501, and the clamping hoop 501 includes a first clamping piece 5011 and a second clamping piece 5012 that can be surrounded by a ring. The first clamping piece 5011 is fixed on the sliding body 503, and one end of the second clamping piece 5012 is provided with a pin hole 1 50121. Correspondingly, one end of the first clamping piece 5011 is provided with a pin hole 2 50111, and a first pin shaft 5014 passes through the pin hole 1 50121 and the pin hole 2 50111 to achieve axial connection between one end of the second clamping piece 5012 and one end of the first clamping piece 5011; the other end of the second clamping piece 5012 is provided with a connecting hole 1 50122, and the other end of the first clamping piece 5011 is provided with a connecting hole 2 50112, and the threaded fastener 5013 passes through the connecting hole 1 50122 and the connecting hole 2 50112 respectively, and is locked by a nut 5014.

[0044] Please refer to Figure 2 and Figure 3 The manual device 1 includes a support 101, a support 102, a manual rod 103 and a connecting rod mechanism. The support 101 is fixed on the lower fan-shaped frame of the base frame 2. The support 102 includes a sleeve 1021 and a U-shaped groove 1022. The sleeve 1021 is coaxial with the support 101 and is movably sleeved on the support 101. The U-shaped groove 1022 is fixed to the upper end of the sleeve 1021. The connecting rod mechanism includes two connecting rods 105 and 104 that are axially connected by a pin 106. One end of the connecting rod 105 and the manual rod 103 are respectively rotatably connected to the U-shaped groove 1022 by a pin 107 (the axial connection in this embodiment is all connected by a pin), and the other end of the manual rod 103 extends outward from the base frame 2. A connecting rod groove 504 is fixedly provided at the bottom of the sliding body 503 , and the connecting rod 104 is axially connected to the connecting rod groove 504 via a first connecting pin 6 .

[0045] In this embodiment, please refer to Figure 8 and Fig. 9 The workpiece clamp 3 includes at least one or two clamps fixed on the upper fan-shaped frame of the base frame 2, and the clamping openings of the two clamps are arranged correspondingly up and down, that is, the two clamps are an upper clamp 31a and a lower clamp 31b. When the upper and lower clamps clamp a workpiece respectively, the axes of the two workpieces are on the same straight line, please refer to Fig.10 , the purpose is to facilitate the welding of the two workpieces.

[0046] The workpiece clamp 3 is a mature technology in this field, and the present invention does not impose specific restrictions on this. In this embodiment, the clamp includes a fixed clamp 3104, a movable clamp 3102 and a pressure rod 3108. One end of the fixed clamp 3104 is a fixed end fixedly connected to the upper fan-shaped frame of the base frame 2 through a threaded fastener. This fixed end is provided with a plurality of mounting holes 1 31043. Correspondingly, a mounting column is fixedly provided on the upper fan-shaped frame, and a mounting block 202 is provided on the mounting column. This mounting block 202 is also provided with a plurality of mounting holes 2, and is fastened by passing through the mounting holes on the fixed clamp 3104 and the mounting block through a plurality of threaded fasteners. A shaft hole 1 31042 is provided in the middle of the fixed clip 3104, and shaft holes 2 31021 are provided on both side walls of one end of the movable clip 3102, respectively. The two shaft holes 2 31021 are located on both sides of the shaft hole 1 31042, and a connecting shaft 3105 passes through the shaft hole 2 31021 and the shaft hole 1 31042 respectively, so that the fixed clip 3104 and the movable clip 3102 are axially connected; the other end of the fixed clip 3104 is provided with a spring mounting hole 31044, and a spring is provided in the spring mounting hole 31044. 3105, a spring cap 3106 is also provided at the upper end of the spring 3105, and a through hole 31061 is provided on the spring cap 3106 for the pull rod 3101 to pass through; the pull rod 3101 passes through the other end of the movable clamp 3102, the spring 3105 and the spring cap 3106 in sequence, and then is axially connected with the pressure rod 3108; the inner side wall of the fixed clamp 3104 is provided with a workpiece fixing groove 1 31041 for clamping the workpiece, and the inner side wall of the movable clamp 3102 is provided with a workpiece fixing groove 2 31022 for clamping the workpiece. By pressing the pressure rod 3108, the fixed clamp 3104 and the movable clamp 3102 can be clamped.

[0047] In this embodiment, a U-shaped groove 31023 is provided on the fixing clamp 3104 for the pull rod 3101 to pass through, and a baffle 31011 is provided at one end of the pull rod 3101. The purpose is that when the other end of the pull rod 3101 passes through the U-shaped groove 31023 and is connected to the pressure rod 3108, the baffle 31011 can prevent the pressure rod 3108 from pulling the pull rod 3101 out of the U-shaped groove 31011.

[0048] In this embodiment, two spaced cams 3107 are provided at the end of the pressure rod 3108, and one end of the pull rod 3101 extends between the two cams 3107. A first pin hole 31071 is provided on the cam 3107, and a second pin hole 31012 is provided on the pull rod 3101. The shaft pin 3103 passes through the first pin hole 31071 and the second pin hole 31012 respectively. In this embodiment, the cam 3107 is a circular wheel, and the first pin hole 31071 on the cam 3107 is eccentrically arranged, that is, the first pin hole 31071 is not on the center of the cam 3107.

[0049] How to use the handheld high frequency welding machine tooling:

[0050] Step 1: Install the handheld high-frequency welding machine 7 (welding machine is also called welding gun) on the welding gun clamping mechanism of the welding gun bracket 5;

[0051] Step 2: Install the two workpieces (8a and 8b) to be welded on two fixtures respectively, and put a solder ring 9, such as a solder ring, between the two workpieces;

[0052] Step 3: Turn on the power switch of the handheld high-frequency welding machine 7 to put it in a ready-to-work state;

[0053] Step 4: Pull the manual lever 103. Due to the cooperation between the slide bar 502 of the welding gun bracket 5 and the slide groove 402 of the welding gun base 4, the welding gun bracket 5 and the welding gun can only move along the direction of the slide bar 502. At this time, the gun head 71 of the welding gun just completely encloses the welding point of the workpiece in the high-frequency induction area, and then heats and welds it. Because the gun head 71 has a U-shaped structure, it will cause uneven heating to the cylindrical workpiece during welding. Therefore, when welding, shake the manual lever 103 left and right. Because the welding gun base 4 cooperates with the arc guide rail 201, the welding gun base 4, the welding gun bracket 5 and the welding gun will rotate with the workpiece as the axis, so as to avoid uneven heating of the workpiece;

[0054] Step 5: After welding is completed, the manual lever 103 is released, and under the action of the reset spring 506, the welding gun bracket 5 and the welding gun will return to the initial position, and the workpiece welding point will be separated from the high-frequency induction area of ​​the gun head, completing the welding of the two workpieces.

Claims

1. A handheld high frequency welding tool, characterized in that: It comprises a base frame, a welding gun base, a welding gun bracket, a workpiece clamp and a manual device, wherein the base frame is provided with a workpiece clamp; the welding gun bracket is movably arranged on the base frame through the welding gun base, and the welding gun bracket can move on the base frame relative to the workpiece clamp; The base frame is provided with an arc-shaped guide rail, and the arc-shaped guide rail is arranged along the outer circumference of the workpiece clamp; the welding gun base is arranged on the base frame and can move circumferentially relative to the workpiece clamp along the arc-shaped guide rail; The welding gun bracket comprises a sliding seat and a welding gun clamping mechanism for clamping a handheld high-frequency welding machine, wherein the welding gun clamping mechanism is mounted on the sliding seat, and the sliding seat is slidably arranged on the welding gun base and can move radially relative to the workpiece clamp; The manual device is movably arranged on the base frame and movably connected to the welding gun bracket; The manual device comprises a pillar, a support, a manual rod and a connecting rod mechanism, wherein the pillar is fixed on the base frame, the support is rotatably arranged on the pillar, the connecting rod mechanism comprises at least two connecting rods which are axially connected in sequence, one end of the connecting rod mechanism and one end of the manual rod are axially connected to the support respectively, the other end of the manual rod extends to the outside of the base frame, and the other end of the connecting rod mechanism is axially connected to the lower end of the welding gun bracket; The sliding seat comprises a sliding body and at least two sliding rods spaced apart and fixedly arranged on the sliding body; The welding gun base is a fan-shaped frame, and two arc sections of the fan-shaped frame are respectively provided with sliding grooves for the sliding rod to slide, and the two ends of the sliding rod are respectively arranged on the sliding grooves of the two arc sections.

2. A handheld high frequency welding tool as claimed in claim 1, characterized in that: A spring limiting hole is also provided on the arc section of the short side of the fan-shaped frame; The sliding body also includes a spring mounting rod, on which a return spring is sleeved, one end of the spring mounting rod is located in the fan-shaped frame and fixedly connected to the sliding body; the other end passes through the spring limiting hole and points to the workpiece clamp.

3. A handheld high frequency welding tool as claimed in claim 1, characterized in that: The welding gun clamping mechanism includes at least one clamping hoop, which includes a first clamping member and a second clamping member that can form a ring. The first clamping member is fixed to the sliding body, and one end of the second clamping member is axially connected to one end of the first clamping member; the other end of the second clamping member can be clamped or connected to the other end of the first clamping member through a threaded fastener.

4. A handheld high frequency welding tool as claimed in claim 1, characterized in that: At least two concentric arc-shaped guide rails are arranged on the base frame, and a plurality of rollers are arranged at the lower end of the welding gun base, and the plurality of rollers are respectively and rollingly arranged on the two arc-shaped guide rails.

5. A handheld high frequency welding tool as claimed in claim 1, characterized in that: The workpiece clamp comprises two clamps fixed on the base frame, and the clamping openings of the two clamps are arranged correspondingly up and down.

6. A handheld high frequency welding tool as claimed in claim 5, characterized in that: The clamp comprises a fixed clamp, a movable clamp and a pressure rod, wherein the fixed clamp is fixed on the base frame, and one end of the movable clamp is rotatably connected to the fixed clamp; one end of the fixed clamp is provided with a spring mounting hole, and a spring is provided in the spring mounting hole; a pull rod passes through the other end of the movable clamp and the spring mounting hole in sequence and is rotatably connected to the pressure rod; Corresponding workpiece fixing grooves are arranged on the inner side walls of the fixed clamp and the movable clamp.

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