阅读说明：本技术 拉弧焊枪 (Arc discharge welding gun ) 是由 张云锟 于 2021-02-03 设计创作，主要内容包括：本发明涉及拉弧焊枪,用于钣金修复,它包括外壳,火线铜杆,地线铜杆,垫片固定器,开关,惰性气管,地线,火线,铝板,OT垫片,其特征是有止动装置,等距步进装置,所述的止动装置安装在外壳内与地线铜杆相邻,调节止动装置能限制或松开地线铜杆前后滑动,等距步进装置安装在外壳内中间处,等距步进装置的伸缩轴与火线铜杆后端相连接,外壳内位于等距步进装置后方的空腔为散热区,等距步进装置的控制电路板安装在散热区内。本发明的优点是产品体积小、重量轻,散热好,能长时间连续稳定地工作,而且焊接性能更加稳定,操作更加便利。(The invention relates to an arc welding gun for repairing a metal plate, which comprises a shell, a fire wire copper rod, a ground wire copper rod, a gasket fixer, a switch, an inert gas pipe, a ground wire, a fire wire, an aluminum plate and an OT gasket. The invention has the advantages of small product volume, light weight, good heat dissipation, capability of continuously and stably working for a long time, more stable welding performance and more convenient operation.)

1. A drawn arc welding gun comprises a shell, a fire wire copper rod, a ground wire copper rod, a gasket fixer, a switch, an inert gas pipe, a ground wire, a fire wire, an aluminum plate and an OT gasket, and is characterized in that a stop device and an equidistant stepping device are arranged in the shell, the stop device is arranged adjacent to the ground wire copper rod, the stop device can be adjusted to limit or loosen the front and back sliding of the ground wire copper rod, the equidistant stepping device is arranged in the middle of the shell, a telescopic shaft of the equidistant stepping device is connected with the rear end of the fire wire copper rod, a cavity behind the equidistant stepping device in the shell is a heat dissipation area, and a control circuit board of the equidistant stepping device is arranged in the.

2. The drawn arc welding gun according to claim 1, wherein the equidistant stepping means is composed of a servo motor fixed at a middle portion in the housing, a control circuit board, a rotating shaft of the servo motor is connected with a live wire copper rod through a screw, the control circuit board is installed at a middle portion of the heat dissipating section of the housing, and the driving signal output terminal is connected with the control terminal of the servo motor through a wire.

3. The arc discharge welding gun according to claim 1, wherein the stopper means is composed of a stopper piece, an adjusting knob, and a spring, and is disposed above the ground wire copper rod in the case, both sides of the bottom end of the stopper piece are hinged to the case, the bottom surface of the stopper piece is parallel to and closely attached to the top surface of the ground wire copper rod, the top of the stopper piece can swing back and forth, the spring is mounted in the middle of the upper portion of the front surface of the stopper piece, the adjusting knob is disposed outside the rear end of the case, the front end of the adjusting knob has a threaded rod, and the front end of the threaded rod is inserted into the case and.

4. The drawn arc welding gun according to claim 1, wherein the live wire copper rod is installed at the middle of the front end of the housing, two ground wire copper rods are installed on the housing at the left and right sides of the live wire copper rod, respectively, and the rear end of the ground wire copper rod is inserted into the housing and sleeved with a spring.

5. The drawn arc welding gun according to claim 1, wherein heat radiation holes are respectively arrayed on both side surfaces of the heat radiation region on the housing.

Technical Field

The invention relates to an arc discharge welding gun, in particular to a welding gun which is controlled by a servo motor and enables a live wire copper rod to be telescopically welded at equal intervals.

Background

In the operation process is restoreed to car panel beating, adopt arc discharge welder to weld the gasket on sunken panel beating face, then draw the gasket through the instrument, thereby restore sunken panel beating face, and arc discharge welder on the existing market all is mechanical transmission welded structure, make welder heavy in weight, the operation is inconvenient, and mechanical type welder is in welding process, strike arc contact time and gasket are all controlled by the welder according to personal experience to panel beating face pressure size, the experience is not enough to produce rosin joint easily, the gasket slope, strike arc time overlength scheduling problem.

Disclosure of Invention

The invention aims to provide an arc discharge welding gun which is electrically driven automatic welding equipment, can accurately control the advancing distance of a live wire copper rod through a servo motor, and simultaneously controls the contact force of a gasket and a metal plate, so that the problems of insufficient welding, overlong arc starting time and the like are not easy to generate.

The technical scheme includes that the heat dissipation device comprises a shell, a fire wire copper rod, a ground wire copper rod, a gasket fixer, a switch, an inert gas pipe, a ground wire, a fire wire, an aluminum plate and an OT gasket and is characterized by comprising a stop device and an equidistant stepping device, wherein the stop device is installed in the shell and is adjacent to the ground wire copper rod, the stop device can be adjusted to limit or loosen the front and back sliding of the ground wire copper rod, the equidistant stepping device is installed in the middle of the shell, a telescopic shaft of the equidistant stepping device is connected with the rear end of the fire wire copper rod, a cavity behind the equidistant stepping device in the shell is a heat dissipation area, and a control circuit board of the equidistant stepping device is installed in.

The equidistant stepping device consists of a servo motor and a control circuit board, wherein the servo motor is fixed in the middle of the shell, a rotating shaft of the servo motor is connected with a live wire copper rod through threads, the control circuit board is arranged in the middle of a heat dissipation area of the shell, and a driving signal output end is connected with a control end of the servo motor through a lead.

The stop device comprises a stop piece, an adjusting knob and a spring, wherein the stop piece is positioned above a ground wire copper rod in a shell, two sides of the bottom end of the stop piece are hinged with the shell, the bottom surface of the stop piece is closely attached to the top surface of the ground wire copper rod in parallel, the top of the stop piece can swing forwards and backwards, the spring is arranged in the middle of the upper part of the front of the stop piece, the adjusting knob is arranged outside the rear end of the shell, the front end of the adjusting knob is provided with a threaded rod, and the front end of the threaded rod is inserted into the shell and extends to the.

The two ground wire copper rods are respectively arranged on the left side and the right side of the fire wire copper rod on the shell, and the rear end of the ground wire copper rod is inserted into the shell and sleeved with the spring.

Radiating holes are respectively arrayed on two side faces of the radiating area on the shell.

The working principle of the invention is that a small servo motor is arranged in the welding gun to drive the live wire copper rod to extend and retract at a precise distance, so that the overall size and weight of the welding gun are greatly reduced, high-quality welding can be completed, because the stop piece and the adjusting knob form a simple stop mechanism, when the adjusting knob is positively and reversely rotated, the stop piece is inclined or horizontally reset under the action of the spring, thereby limiting or loosening the back-and-forth sliding of the ground wire copper rod, ensuring that the ground wire copper rod has good and convenient limiting operation effect and does not occupy too large space of the inner cavity of the shell, a control circuit board is arranged in a reserved heat dissipation inner cavity at the rear end of the shell, the air flow generated when the servo motor works is utilized to drive the air flow in the inner cavity to dissipate heat for the control circuit board and the servo motor, if the tail shaft with the small fan blades is needed, the tail shaft with the small fan blades can be additionally arranged at the rear end of the servo motor, the air flow between the inner cavity and the outside is improved, and sufficient heat dissipation is ensured to enable the electronic component to stably work for a long time.

The invention has the advantages of small product volume, light weight, good heat dissipation, capability of continuously and stably working for a long time, more stable welding performance and more convenient operation.

Drawings

FIG. 1 is a schematic overall perspective view of the present invention;

FIG. 2 is a schematic view of the overall internal perspective of the present invention;

fig. 3 is a schematic view of the overall cross-sectional perspective structure of the present invention.

Detailed Description

According to the invention, as shown in figures 1, 2 and 3, the gasket fixer 4 and the firing line copper rod 2 are sequentially arranged at the front end of the shell 1 from front to back, the switch 4 is arranged on the handle of the shell and is connected with the switching signal end of the control circuit board 17 through a lead, two grounding line copper rods 4 are arranged on the shell 1 and are respectively positioned at the left side and the right side of the firing line copper rod 2, the rear end of the grounding line copper rod 4 is inserted into the shell 1 and is sleeved with a spring 18, an inert gas pipe, a grounding line and a firing line are connected into the firing line copper rod 2 from the bottom end of the handle of the shell, an OT gasket 10 is inserted into the gasket fixer 4 when in application, the servo motor 16 is controlled by the switch 4 to drive the firing line copper rod 2 to move the gasket fixer 4 forwards, the front end of the OT gasket 10 is subjected to arc welding on the aluminum plate 9, the invention is characterized by a stopping device 11 and an equidistant stepping device 12, the stopping device 11, the adjusting and stopping device 11 can limit or loosen the front and back sliding of the ground wire copper rod 3, the equidistant stepping device 12 is installed in the middle of the shell 1, the telescopic shaft of the equidistant stepping device 12 is connected with the rear end of the fire wire copper rod 3, a cavity behind the equidistant stepping device in the shell 1 is a heat dissipation area, heat dissipation holes are respectively arrayed on two side faces of the heat dissipation area, and the control circuit board 17 of the equidistant stepping device 12 is installed in the heat dissipation area. Equidistance stepper 12 is by servo motor 16, and control circuit board 17 constitutes, and servo motor 16 is fixed in the shell in 1 middle department, and servo motor's pivot is connected with the live wire copper pole through the screw thread, and six position of department are all reserved in the middle of the radiating area of shell 1 and are had the circulation of air clearance in control circuit board 17 installation, and servo motor 16 can be the tape trailer simultaneously, installs small-size flabellum on the trailer for reinforcing radiating area air flow, and control circuit board 17's drive signal output end is connected with servo motor 16 control end through the wire. The stopping device 11 is composed of a stopping piece 15, an adjusting knob 13 and a spring 14, the stopping piece is positioned above the ground wire copper rod 3 in the shell 1 and is hinged with a supporting position in the shell 1 through convex rods on two sides of the bottom end of the stopping piece, the bottom surface of the stopping piece 15 is attached to the top surface of the ground wire copper rod 3 in parallel, the top of the stopping piece 15 can swing forwards and backwards, the spring 14 is installed in the middle of the upper front part of the stopping piece 15 for horizontal reset, the adjusting knob 13 is arranged outside the rear end of the shell 1, a threaded rod is protruded in the middle of the front end of the adjusting knob, the front end of the threaded rod is inserted into the shell 1 and extends to the middle of the upper back part of the stopping piece 15, and when the adjusting knob rotates forwards, the threaded rod moves forwards to force the top end of the stopping piece 15 to incline forwards, so that the bottom of the stopping. When the adjusting knob rotates reversely, the threaded rod moves backwards to enable the stopping piece 15 to swing backwards in the top end, under the reset acting force of the spring 14, the stopping piece 15 is enabled to be restored to the horizontal state, the bottom of the stopping piece is parallel to the top surface of the ground wire copper rod 3, the friction force on the ground wire copper rod 3 is relieved, and the ground wire copper rod 3 can be freely contracted according to the external force at the front end or the spring sleeved at the tail end of the ground wire copper rod 3 can be reset and extended.