CN210413326U

CN210413326U - Circumference welding machine

Info

Publication number: CN210413326U
Application number: CN201921408534.2U
Authority: CN
Inventors: 童文秀
Original assignee: Hubei Haihongda Railway Vehicle Parts Co ltd
Current assignee: Hubei Haihongda Railway Vehicle Parts Co ltd
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-04-28
Anticipated expiration: 2029-08-27

Abstract

The utility model provides a circumference welding machine, which comprises an operating platform, wherein the upper end of the operating platform is rotationally connected with a rotating shaft through a bearing, and the rotating shaft is fixedly connected with a turntable and an output bevel gear; the special line of the rotating shaft is vertical to the upper surface of the rotating disc, and the rotating disc is positioned above the output bevel gear; the upper end of the operating platform is also fixed with a motor, and an input bevel gear meshed with the output bevel gear is fixed on a rotating shaft of the motor; the upper surface of the rotary table is provided with a positioning needle at the center of a circle where the rotary table is located, the rotary table is also provided with a fixing through hole, and the peripheral surface of the rotary table is provided with a deflector rod; a control electric box is also fixed on the upper surface of the operating platform, a knob and a display screen are arranged on the control electric box, and a plectrum switch is arranged in the control electric box; the upper end of the control electronic box is provided with a first sliding rod, the axis of the first sliding rod is perpendicular to the upper surface of the rotary table, the first sliding rod is connected with a first sliding sleeve in a sliding mode, and the first sliding sleeve is fixedly connected with a second sliding rod. The utility model has the advantages of welding quality is good, efficient.

Description

Circumference welding machine

Technical Field

The utility model belongs to the technical field of machining equipment, concretely relates to circumference welding machine.

Background

In machining of mechanical equipment, a round pipe and a square pipe, a round pipe and a flat plate and other workpieces are often welded, usually, a through hole with the size matched with that of the round pipe is formed in the square pipe or the flat plate, then the round pipe is inserted into the through hole, and then welding is carried out, so that the round pipe and the flat plate are tightly fixed together. During welding, people mostly adopt a manual welding mode, the machining efficiency is low, welding is difficult to achieve uniformly, workpieces are not attractive, and the technical requirements on welding workers are high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to design a circumference welding machine, make it can assist the manual work to carry out the circumference welding to the work piece to improve the production efficiency of enterprise.

The purpose of the utility model can be realized by the following technical proposal: the circumference welding machine is characterized by comprising an operating platform, wherein the upper end of the operating platform is rotatably connected with a rotating shaft through a bearing, and the rotating shaft is fixedly connected with a turntable and an output bevel gear; the special line of the rotating shaft is vertical to the upper surface of the rotary table, and the rotary table is positioned above the output bevel gear; a motor is further fixed at the upper end of the operating platform, and an input bevel gear meshed with the output bevel gear is fixed on a rotating shaft of the motor; the upper surface of the rotary table is provided with a positioning needle at the center of a circle where the rotary table is located, the rotary table is also provided with a fixing through hole, and the outer peripheral surface of the rotary table is provided with a deflector rod; a control electric box is further fixed on the upper surface of the operating platform, a knob and a display screen are arranged on the control electric box, and a poking piece switch is arranged in the control electric box; a first sliding rod is arranged at the upper end of the control electric box, the axis of the first sliding rod is perpendicular to the upper surface of the rotary table, a first sliding sleeve is connected onto the first sliding rod in a sliding mode, and a second sliding rod is fixedly connected onto the first sliding sleeve; the axis of the second sliding rod is vertical to the axis of the first sliding rod, the second sliding rod is positioned above the rotary table, and the second sliding rod passes through the circle center of the circle where the rotary table is located; a second sliding sleeve is connected to the second sliding rod in a sliding mode, a welding gun is detachably connected to the second sliding sleeve, and fixing nuts are arranged on the first sliding sleeve and the second sliding sleeve; the driving lever is matched with the shifting piece switch to synchronously start or close the motor and the welding gun.

In the welding machine, the positioning needle is arranged at the upper end of the rotary table, so that a worker can quickly position the welding fixture on the rotary table, and the circle center of a part such as a round pipe of a workpiece to be welded finally coincides with the circle center (the positioning needle) of the rotary table, thereby improving the machining efficiency; and the through hole on the turntable is used for fixing the positioned welding fixture on the turntable by adopting a bolt. Before the welding machine is started, a deflector rod on the rotary table abuts against a deflector switch, and the deflector switch is turned by a certain angle to be disconnected at the moment, so that a motor and a welding gun on the welding machine are controlled to be closed; after a worker fixes a workpiece to be welded on the fixed welding fixture, the worker can adjust the positions of the first sliding sleeve and the second sliding sleeve according to the position to be welded and fix the first sliding sleeve and the second sliding sleeve through the fixing nut, so that the front end of the welding gun is just positioned near a welding seam with the welded workpiece; then adjusting a knob on the control electric box to enable the rotating speed of the motor to be proper; then, a worker can slightly rotate the rotary table to enable the deflector rod to stir the shifting piece switch to continue rotating and finally separate the deflector rod and the shifting piece switch, the shifting piece switch is provided with a reset spring, after the deflector rod leaves the shifting piece switch, the shifting piece switch is reset and closed under the action of the reset spring to control a motor and a welding gun on the welding machine to synchronously start, the motor drives the rotary table to rotate through an input bevel gear and an output bevel gear which are meshed with each other, so that a circular pipe workpiece rotates, and meanwhile, the welding gun welds a welding seam on the periphery of the circular pipe workpiece; after the turntable rotates for a circle, the deflector rod returns to the original point, and the plectrum switch is moved again to disconnect the plectrum switch, and the welding gun and the motor stop simultaneously; at this time, the worker can replace a new workpiece to be welded, and repeat the above-described operation to weld the next workpiece. In the welding machine, the motor and the welding gun are automatically started under the control of the control electric box, and the turntable is automatically closed after rotating for one circle, so that the integrity of circumferential welding of a workpiece is ensured and the welding machine cannot be repeated; secondly, the rotating speed of the motor can be adjusted at any time by controlling the electric box, so that the welding quality of the workpiece is further ensured; moreover, in the welding process, the motor rotates at a constant speed, and the uniformity and consistency of the motor are well guaranteed.

In the above circumference welding machine, the upper surface of the operation table is provided with the baffle around the motor, the input bevel gear and the output bevel gear.

In the actual production and use process of the welding machine, the transmission assemblies (the motor, the input bevel gear and the output bevel gear) of the welding machine are all positioned at the upper end of the operating platform, when a worker performs welding operation, the hand of the worker is also positioned at the upper end of the operating platform, and the rotating transmission assemblies can reach the hand of the worker very easily, so that the baffle is arranged on the upper surface of the operating platform, and the hand of the worker is isolated from the transmission assemblies to ensure the safety of the worker.

The utility model discloses the advantage:

1. in the welding machine, the positioning needle is arranged at the upper end of the rotary table, so that a worker can quickly position the welding fixture on the rotary table, and the circle centers of parts such as a round pipe of a workpiece to be welded and the like are superposed with the circle center (the positioning needle) of the rotary table, so that the machining efficiency is improved.

2. In the welding machine, the motor and the welding gun are automatically started under the control of the control electric box, and the turntable is automatically closed after rotating for a circle, so that the completeness of circumferential welding of workpieces is ensured, and the welding machine cannot be repeated.

3. In the welding machine, the rotating speed of the motor can be adjusted at any time through the control electric box, so that the welding quality of the workpiece is further ensured.

4. In the welding process of the welding machine, the motor rotates at a constant speed, and the uniformity and consistency of the motor are well ensured.

Drawings

FIG. 1 is a perspective view of the present circular welder.

FIG. 2 is a perspective view of the present circular welder from another perspective.

In the figure, 1, an operation table; 2. a bearing; 3. a rotating shaft; 4. a turntable; 5. an output bevel gear; 6. a motor; 7. an input bevel gear; 8. a positioning pin; 9. a through hole; 10. a deflector rod; 11. controlling an electric box; 12. a knob; 13. a display screen; 14. a paddle switch; 15. a first slide bar; 16. a first sliding sleeve; 17. a second slide bar; 18. a second sliding sleeve; 19. a welding gun; 20. fixing a nut; 21. and a baffle plate.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the circumference welding machine comprises an operating platform 1, wherein the upper end of the operating platform 1 is rotatably connected with a rotating shaft 3 through a bearing 2, and the rotating shaft 3 is fixedly connected with a turntable 4 and an output bevel gear 5; the special line of the rotating shaft 3 is vertical to the upper surface of the turntable 4, and the turntable 4 is positioned above the output bevel gear 5; a motor 6 is further fixed at the upper end of the operating platform 1, and an input bevel gear 7 meshed with the output bevel gear 5 is fixed on a rotating shaft of the motor 6; a positioning needle 8 is arranged on the upper surface of the rotary table 4 at the center of a circle where the rotary table 4 is located, a through hole 9 is further formed in the rotary table 4, and a deflector rod 10 is arranged on the outer peripheral surface of the rotary table 4; a control electric box 11 is further fixed on the upper surface of the operating platform 1, a knob 12 and a display screen 13 are arranged on the control electric box 11, and a poke piece switch 14 is arranged in the control electric box 11; a first sliding rod 15 is arranged at the upper end of the control electronic box 11, the axis of the first sliding rod 15 is perpendicular to the upper surface of the rotary table 4, a first sliding sleeve 16 is connected onto the first sliding rod 15 in a sliding manner, and a second sliding rod 17 is fixedly connected onto the first sliding sleeve 16; the axis of the second slide bar 17 is vertical to the axis of the first slide bar 15, the second slide bar 17 is positioned above the rotary table 4, and the second slide bar 17 passes through the center of a circle where the rotary table 4 is located; the second sliding rod 17 is connected with a second sliding sleeve 18 in a sliding manner, the second sliding sleeve 18 is detachably connected with a welding gun 19, and the first sliding sleeve 16 and the second sliding sleeve 18 are both provided with fixing nuts 20; the shifting lever 10 is matched with the shifting sheet switch 14 to synchronously start or stop the motor 6 and the welding gun 19.

In the welding machine, the positioning needle 8 is arranged at the upper end of the rotary table 4, so that a worker can quickly position a welding clamp on the rotary table 4, and the circle center of a part such as a round pipe of a workpiece to be welded is superposed with the circle center (the positioning needle 8) of the rotary table 4 finally, thereby improving the machining efficiency; and the through hole 9 on the rotary table 4 is used for fixing the positioned welding clamp on the rotary table 4 by adopting a bolt. Before the welding machine is started, a driving lever 10 on the rotary disc 4 abuts against a shifting piece switch 14, and the shifting piece switch 14 is turned by a certain angle to be disconnected at the moment, so that a motor 6 and a welding gun 19 on the welding machine are controlled to be closed; after a worker fixes a workpiece to be welded on the fixed welding fixture, the worker can adjust the positions of the first sliding sleeve 16 and the second sliding sleeve 18 according to the position to be welded and fix the first sliding sleeve 16 and the second sliding sleeve 18 through the fixing nut 20, so that the front end of the welding gun 19 is just positioned near a welding seam with the welded workpiece; then, a knob 12 on the control electric box 11 is adjusted to enable the rotating speed of the motor 6 to be proper; then, a worker can slightly rotate the rotary table 4 to enable the poking rod 10 to poke the poking piece switch 14 to continue rotating and finally separate the poking piece switch 14 from the rotary table, a reset spring is arranged on the poking piece switch 14, after the poking rod 10 leaves the poking piece switch 14, the poking piece switch 14 is reset and closed under the action of the reset spring, a motor 6 and a welding gun 19 on the welding machine are controlled to be synchronously started, the motor 6 drives the rotary table 4 to rotate through the input bevel gear 7 and the output bevel gear 5 which are meshed with each other, so that the circular tube workpiece is rotated, and meanwhile, the welding gun 19 performs welding at the welding seam on the periphery; after the turntable 4 rotates for a circle, the shift lever 10 returns to the original point, and the plectrum switch 14 is shifted again, so that the plectrum switch 14 is switched off, and the welding gun 19 and the motor 6 stop simultaneously; at this time, the worker can replace a new workpiece to be welded, and repeat the above-described operation to weld the next workpiece. In the welding machine, the motor 6 and the welding gun 19 are automatically started under the control of the control electric box 11, and the turntable 4 is automatically closed after rotating for a circle, so that the integrity of circumferential welding of a workpiece is ensured, and the welding machine cannot be repeated; secondly, the rotating speed of the motor 6 can be adjusted at any time through the control electric box 11, so that the welding quality of the workpiece is further ensured; moreover, in the welding process, the motor 6 rotates at a constant speed, and the uniformity and consistency of the motor are well guaranteed.

Baffles 21 are arranged on the upper surface of the operating platform 1 around the motor 6, the input bevel gear 7 and the output bevel gear 5; in the actual production and use process of the welding machine, the transmission assemblies (the motor 6, the input bevel gear 7 and the output bevel gear 5) of the welding machine are all positioned at the upper end of the operating platform 1, when a worker performs welding operation, the hand of the worker is also positioned at the upper end of the operating platform 1, and the rotating transmission assemblies can be easily pushed to the hand of the worker, so that the baffle 21 is arranged on the upper surface of the operating platform 1, and the hand of the worker is isolated from the transmission assemblies, so that the safety of the worker is ensured.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The circumference welding machine is characterized by comprising an operating platform (1), wherein the upper end of the operating platform (1) is rotatably connected with a rotating shaft (3) through a bearing (2), and the rotating shaft (3) is fixedly connected with a rotating disc (4) and an output bevel gear (5); the special line of the rotating shaft (3) is vertical to the upper surface of the rotating disc (4), and the rotating disc (4) is positioned above the output bevel gear (5); a motor (6) is further fixed at the upper end of the operating platform (1), and an input bevel gear (7) meshed with the output bevel gear (5) is fixed on a rotating shaft of the motor (6); a positioning needle (8) is arranged on the upper surface of the rotary table (4) at the center of a circle where the rotary table (4) is located, a fixing through hole (9) is further formed in the rotary table (4), and a deflector rod (10) is arranged on the outer peripheral surface of the rotary table (4); a control electric box (11) is further fixed on the upper surface of the operating platform (1), a knob (12) and a display screen (13) are arranged on the control electric box (11), and a poke switch (14) is arranged in the control electric box (11); a first sliding rod (15) is arranged at the upper end of the control electric box (11), the axis of the first sliding rod (15) is vertical to the upper surface of the rotary table (4), a first sliding sleeve (16) is connected onto the first sliding rod (15) in a sliding manner, and a second sliding rod (17) is fixedly connected onto the first sliding sleeve (16); the axis of the second sliding rod (17) is vertical to the axis of the first sliding rod (15), the second sliding rod (17) is positioned above the rotary table (4), and the second sliding rod (17) passes through the circle center of the circle where the rotary table (4) is located; the second sliding rod (17) is connected with a second sliding sleeve (18) in a sliding mode, the second sliding sleeve (18) is detachably connected with a welding gun (19), and fixing nuts (20) are arranged on the first sliding sleeve (16) and the second sliding sleeve (18); the poking rod (10) is matched with the poking piece switch (14) to synchronously start or close the motor (6) and the welding gun (19).

2. A machine according to claim 1, characterized in that the upper surface of the operating table (1) is provided with baffles (21) around the motor (6), the input bevel gear (7) and the output bevel gear (5).