Automatic high-frequency welding machine

Abstract

The invention discloses an automatic high-frequency welding machine which comprises a workbench assembly, a rotating table and a motor, the workbench assembly is provided with a welding gun and a wire feeding gun, the motor is fixed to the workbench assembly, the rotating table is provided with a plurality of stations, the stations are used for fixing piping, and the motor drives the rotating table to rotate. A mounting frame is fixed to the workbench assembly, and the inductive switch is fixed to the mounting frame. A plurality of stations are installed on the rotating table, then a four-way valve is installed on the stations, meanwhile, a pipeline of a four-way valve piping is installed on the stations, and the motor controls the rotating table. When the inductive switch inducts the station, a signal is generated, the motor is controlled to stop according to a preset program, the station on the rotating table can be accurately aligned to the welding gun and the wire feeding gun, at the moment, the welding gun and the wire feeding gun accurately weld the pipeline, and the welding quality is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of automatic welding, and in particular relates to an automatic high-frequency welding machine. Background Art

[0002] Welding, also known as fusion welding, is a manufacturing process and technology that uses heating, high temperature or high pressure to join metals or other thermoplastic materials such as plastics. Different metals and workpieces with different structures require corresponding welding processes and equipment to implement welding. As a traditional process and technology in the manufacturing industry, welding technology has developed rapidly in industrial applications in recent years.

[0003] Welding can be divided into manual welding, semi-automatic welding, and automatic welding according to the degree of automation. Among them, manual welding means welding with a manual handheld welding gun; semi-automatic welding usually means that the welding gun is fixed, the workpiece rotates, and the workpiece needs to be clamped manually; automatic welding is mostly performed by automated equipment such as manipulators and robots. In the field of industrial automation, many companies have an urgent need for advanced welding equipment. At present, most welding machines use single-station welding for operation, and each station needs to be equipped with an operator to operate, which not only takes up space, but also increases labor costs. In order to save space and labor costs, integrating multiple welding stations is a good design solution.

[0004] The four-way valve is an indispensable component in refrigeration equipment. The existing technology uses welding guns and wire feeders to weld the pipelines of the four-way valve at multiple stations. The multiple stations are installed on a rotating table, and the rotating table is driven by a motor to rotate, so that the welding gun and wire feeder can weld the pipelines at different stations. If the station can be accurately positioned, the welding quality of the welding gun and wire feeder on the pipeline can be improved. Therefore, how to accurately position the station is a technical problem that technicians in this field need to solve. Summary of the invention

[0005] The purpose of the present invention is to solve the above-mentioned technical problems existing in the prior art and to provide an automatic high-frequency welding machine, which controls the motor to stop by sensing the position of the workstation through an induction switch, so that the rotating table stops rotating. The workstation on the rotating table can be accurately aligned with the welding gun and the wire feeding gun, thereby improving the welding quality of the welding gun and the wire feeding gun to the pipeline.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] An automatic high-frequency welding machine includes a workbench assembly, a rotating table and a motor. The workbench assembly is provided with a welding gun and a wire feeding gun. The motor is fixed on the workbench assembly. The rotating table is provided with a plurality of workstations for fixing pipes. The motor drives the rotating table to rotate. The machine is characterized in that it also includes an induction switch. The workbench assembly is fixed with a mounting frame. The induction switch is fixed on the mounting frame. The induction switch is used to sense the position of the workstation to control the stop of the motor. The welding gun and the wire feeding gun weld the pipes of the pipes.

[0008] Furthermore, the mounting frame includes rod member 1 and rod member 2, rod member 1 is horizontally fixed on the workbench assembly, rod member 2 is vertically welded to one place of the rod member, connecting plate 1 is fixed to rod member 2, connecting plate 1 is provided with a mounting hole, the induction switch passes through the mounting hole, and the induction switch is fixed to connecting plate 1 through a fixing member.

[0009] Furthermore, the rotating table is fixed with a connecting sleeve, the connecting sleeve is provided with a pipe hole, the motor shaft of the motor extends into the pipe hole, and the motor shaft and the connecting sleeve are fixedly connected, the rod member 2 is fixed with a connecting plate 2, the connecting plate 2 is provided with a connecting shaft, a bearing is provided in the pipe hole, and the connecting shaft is arranged in the bearing hole of the bearing.

[0010] Furthermore, the workstations include workstation one and workstation two, wherein two workstation one are symmetrically arranged by rotating 180 degrees, and two workstation two are symmetrically arranged by rotating 180 degrees.

[0011] Furthermore, workstation one includes a mounting plate one and a support rod one, the mounting plate one is fixed on a rotating table, the support rod one is fixed on the mounting plate one, the support rod one is provided with a limiting groove one, and the pipe body of the piping is limited in the limiting groove one, the mounting plate one is fixed with an auxiliary rod one, the auxiliary rod one is provided with a limiting plate one, the limiting plate one is provided with a limiting groove two, and the other pipe bodies of the piping are limited in the limiting groove two, and the support rod one is provided with a clamp, and the clamp clamps the pipe body of the piping.

[0012] Furthermore, the clamp includes a fixed plate, a driving shaft, a rotating member and a clamping plate. The fixed plate is fixed on a supporting rod. The fixed plate is provided with a guide member. The driving shaft passes through the guide member. The guide member is provided with a fastener. The driving shaft is connected to a movable plate. The movable plate is provided with two through holes. The distance between the central axes of the two through holes gradually increases along the direction from the driving shaft to the rotating member. The two rotating members are rotatably connected. The rotating members are both provided with a limit member. The limit member is arranged in the through hole. The clamping plate is fixed on the rotating member.

[0013] By moving the driving shaft horizontally, the movable plate moves horizontally. At this time, the limiter moves in the through hole to control the rotation of the rotating member, so that the clamping plate clamps the pipe body of the pipe, and the driving shaft is locked by the fastener.

[0014] Furthermore, workstation two includes mounting plate two and support rod two, mounting plate two is fixed on the rotating table, support rod two is fixed on mounting plate two, support rod two is provided with a positioning column, the pipe mouth of another pipe body of the piping is limited on the positioning column, mounting plate two is fixed with auxiliary rod two, auxiliary rod two is provided with limiting plate two, limiting plate two is provided with limiting groove three, and the other pipe body of the piping is limited in limiting groove three.

[0015] Furthermore, the workbench assembly is provided with a mechanical arm, the mechanical arm is fixed with a fixed plate 2, the fixed plate 2 is provided with a cylinder, the cylinder is connected to a control frame 1, the cylinder controls the control frame 1 to move forward and backward, and the wire feeding gun is installed on the control frame 1. The fixed plate 2 is fixed with a driving structure, the driving structure is connected to the control frame 2, the control frame 2 is fixed with a slider, the fixed plate 2 is provided with a track, the driving structure controls the control frame 2, so that the slider moves forward and backward on the track, and the welding gun is installed on the control frame 2.

[0016] Furthermore, the workbench assembly is provided with a steel pipe frame, the steel pipe frame is provided with a partition, the rotating table is provided above the partition, the motor is provided below the partition, and the partition is provided with a baffle.

[0017] Furthermore, the partition is provided with a discharge hole, the workbench assembly is provided with a collecting frame, the collecting frame is provided with a collecting trough, and the collecting trough is arranged below the discharge hole.

[0018] The present invention has the following beneficial effects due to the adoption of the above technical solution:

[0019] The present invention installs a plurality of workstations on a rotating table, then installs a four-way valve on the workstation, and installs the pipeline of the four-way valve on the workstation at the same time, and the motor controls the rotating table. When the induction switch senses the workstation, a signal is generated, and the motor is controlled to stop according to a preset program, and the workstation on the rotating table can be accurately aligned with the welding gun and the wire feeding gun. At this time, the welding gun and the wire feeding gun can accurately weld the pipeline, thereby improving the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings:

[0021] Figure 1 It is a structural schematic diagram of an automatic high-frequency welding machine in the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the connection between the workbench assembly, the rotating table, the motor and the workstation in the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the connection between the rotating table, the motor and the workstation in the present invention;

[0024] Figure 4 It is a structural schematic diagram of the workstation 1 in the present invention;

[0025] Figure 5It is a schematic diagram of the structure of the clamp in the present invention;

[0026] Figure 6 It is a structural schematic diagram of the second station in the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of the induction switch after installation in the present invention;

[0028] Figure 8 It is a structural schematic diagram of the connection between the connecting plate 2 and the connecting sleeve in the present invention;

[0029] Fig. 9 It is a structural schematic diagram of the connecting sleeve in the present invention;

[0030] Fig.10 It is a structural schematic diagram of the connecting plate 2 in the present invention;

[0031] Fig.11 It is a schematic diagram of the structure of the connection between the workbench assembly and the partition in the present invention;

[0032] Fig.12 It is a schematic diagram of the structure of the collection frame in the present invention;

[0033] Fig.13 It is a schematic diagram of the structure in which the wire feeding gun and the welding gun are installed on the robot arm in the present invention;

[0034] Fig.14 It is a schematic diagram of the structure of the wire feeding gun and the welding gun in the present invention.

[0035] In the figure, 1-workbench assembly; 2-welding gun; 3-wire feeding gun; 4-rotating table; 5-motor; 6-induction switch; 7a-station 1; 7b-station 2; 8-rod 1; 9-rod 2; 10-connecting plate 1; 11-connecting sleeve; 12-bearing; 13-bearing hole; 14-connecting plate 2; 15-connecting shaft; 16-mounting plate 1; 17-support rod 1; 18-limiting groove 1; 19-clamp; 20-auxiliary rod 1; 21-limiting plate 1; 22-limiting groove 2; 23-fixed plate 1; 24-driving shaft; 25-moving plate; 26-rotating member; 27-clamping plate; 28-through hole; 29-limiting 1-piece; 30-guide piece; 31-fastener; 32-mounting plate 2; 33-support rod 2; 34-positioning column; 35-auxiliary rod 2; 36-limiting plate 2; 37-limiting groove 3; 38-partition plate; 39-baffle plate; 40-steel pipe rack; 41-discharge hole; 42-round hole; 43-collection frame; 44-collection groove; 45-workbench; 46-connecting protrusion; 47-connecting block; 48-mechanical arm; 49-protective net; 50-cylinder; 51-control frame 1; 52-control frame 2; 53-fixed plate 2; 54-track; 55-slider; 56-drive motor; 57-connecting rod; 58-handle; a-piping. DETAILED DESCRIPTION

[0036] like Figures 1 to 14 As shown, an automatic high-frequency welding machine of the present invention includes a workbench assembly 1 and a rotating table 4.

[0037] The workbench assembly 1 of the present invention includes two workbenches 45, each of which is provided with a connecting protrusion 46, which is fixed by screws, and a connecting block 47 is provided between the two workbenches 45, so that the two workbenches 45 are fixedly connected. The workbenches 45 are provided with a protective net 49, which encloses the welding work area to improve safety.

[0038] The workbench 45 is fixed with a mechanical arm 48, which is a prior art and the structure of which will not be described in detail in the present invention. Fig.14 The mechanical arm 48 is fixed with a fixed plate 2 53, and the fixed plate 2 53 is provided with a cylinder 50, and the cylinder 50 is connected to a control frame 1 51, and the cylinder 50 controls the control frame 1 51 to move forward and backward, and the wire feeding gun 3 is installed on the control frame 1 51. The fixed plate 2 53 is fixed with a driving structure, and the driving structure is connected to the control frame 2 52. The driving structure can use a driving motor 56 and a connecting rod 57, and the driving motor 56 is installed at the fixed plate 2 53, and the driving motor 56 is connected to the connecting rod 57, and the connecting rod 57 is connected to the control frame 2 52. The control frame 2 52 is fixed with a slider 55, and the fixed plate 2 53 is provided with a track 54. The driving motor 56 applies a force to the control frame 2 52 through the connecting rod 57, so that the slider 55 moves forward and backward on the track 54, and the welding gun 2 is installed on the control frame 2 52. The present invention designs the wire feeding gun 3 and the welding gun 2 to move, and cooperates with the driving action of the mechanical arm 48, so that the wire feeding gun 3 and the welding gun 2 can accurately and automatically reach the welding position, thereby improving the welding quality.

[0039] The workbench 45 is fixed with a motor 5, and the motor 5 drives the rotating table 4 to rotate. The workbench 45 is provided with a steel pipe frame 40, and the steel pipe frame 40 is provided with a partition 38. The rotating table 4 is arranged above the partition 38, and the motor 5 is arranged below the partition 38. The partition 38 is provided with a circular hole 42, and the motor shaft of the motor 5 passes through the circular hole 42. The welding slag generated during welding is collected on the partition 38, and the partition 38 protects the motor 5 to prevent the welding slag from affecting the motor 5 during the welding process. The partition 38 is provided with a discharge hole 41, and the workbench 45 is provided with a collection frame 43, and the collection frame 43 is provided with a collection slot 44. The collection slot 44 is arranged below the discharge hole 41, and the impurities generated after welding can fall into the collection slot 44 of the collection frame 43 through the discharge hole 41.

[0040] A plurality of workstations are arranged on the rotating table 4, and the workstations are used to fix the pipe a. The partition 38 is provided with a baffle 39, and the baffle 39 surrounds the workstations to improve the safety of welding.

[0041] like Figure 3As shown, the workstations of the present invention include workstation one 7a and workstation two 7b, wherein two workstation one 7a are symmetrically arranged by rotating 180 degrees, and two workstation two 7b are symmetrically arranged by rotating 180 degrees.

[0042] like Figure 4 As shown, the specific structure of station 17a is as follows: station 17a includes a mounting plate 16 and a support rod 17. The mounting plate 16 is fixed on the rotating table 4. The support rod 17 is fixed on the mounting plate 16. The support rod 17 is provided with a limiting groove 18. The pipe body of the pipe a is limited in the limiting groove 18. The mounting plate 16 is fixed with an auxiliary rod 20. The auxiliary rod 20 is provided with a limiting plate 21. The limiting plate 21 is provided with a limiting groove 22. The other pipe bodies of the pipe a are limited in the limiting groove 22. The pipe a of a certain length and shape can be supported at multiple points to prevent the pipe body from being deformed by the force. The support rod 17 is provided with a clamp 19. The clamp 19 clamps the pipe body of the pipe a to improve the stability of the pipe body on the station 17a and prevent the pipe a from falling.

[0043] like Figure 5 As shown, the clamp 19 includes a fixed plate 23, a drive shaft 24, a rotating member 26 and a clamping plate 27. The fixed plate 23 is fixed on the support rod 17. The fixed plate 23 is provided with a guide member 30. The guide member 30 is provided with a fastener 31. The drive shaft 24 passes through the guide member 30. The drive shaft 24 is connected to a handle 58. The drive shaft 24 is connected to a movable plate 25. The movable plate 25 is provided with two through holes 28. The distance between the central axes of the two through holes 28 gradually increases along the direction from the drive shaft 24 to the rotating member 26. The two rotating members 26 are rotatably connected. The rotating members 26 are both provided with a limit member 29. The limit member 29 is arranged in the through hole 28. The clamping plate 27 is fixed on the rotating member 26. By applying force to the handle 58, the handle 58 controls the horizontal movement of the driving shaft 24, so that the moving plate 25 moves horizontally, at this time, the limiter 29 moves in the through hole 28, the distance between the two limiters 29 changes, and the rotating member 26 rotates, so that the clamping plate 27 clamps the pipe body of the pipe a, and the four-way valve can be fixed, and then the fastener 31 is used to lock the driving shaft 24, so that the driving shaft 24 does not move. The clamp 19 is simple to clamp the pipe body, and the driving position of the handle 58 and the clamping position of the clamping plate 27 have a height difference, so that the driving position of the handle 58 is below the pipe body, and the operation process of the handle 58 is not affected by the pipe body.

[0044] like Figure 6As shown, the specific structure of the second station 7b is as follows: the second station 7b includes a second mounting plate 32 and a second support rod 33. The second mounting plate 32 is fixed on the rotating table 4. The second support rod 33 is fixed on the second mounting plate 32. The second support rod 33 is provided with a positioning column 34. The pipe mouth of another pipe a is limited on the positioning column 34, so that the four-way valve can be fixed. The second mounting plate 32 is fixed with an auxiliary rod 35. The auxiliary rod 35 is provided with a second limiting plate 36. The second limiting plate 36 is provided with a third limiting groove 37. The other pipes of the pipe a are limited in the third limiting groove 37. The pipe a of a certain length and shape can be supported at multiple points to prevent the pipe body from being deformed by the force.

[0045] In the present invention, a rod 18 is fixed horizontally on the protective net 49 of the workbench 45, and a rod 29 is vertically welded to the rod 18, and the rod 18 and the rod 29 form a mounting frame. A connecting plate 10 is fixed to the rod 29, and the connecting plate 10 is provided with a mounting hole, and the induction switch 6 passes through the mounting hole, and the induction switch 6 is fixed to the connecting plate 10 by two nuts. When the induction switch 6 senses the support rod 17 of the station 1 7a or the support rod 2 33 of the station 2 7b, a signal is generated, and the motor 5 is controlled to stop according to a preset program, and the station 1 7a or the station 2 7b on the rotating table 4 can be accurately aligned with the welding gun 2 and the wire feeding gun 3. At this time, the welding gun 2 and the wire feeding gun 3 accurately weld the pipelines on the station, thereby improving the welding quality.

[0046] Considering that the rod 2 9 has a certain length, its force bearing capacity is general, and there is deformation, which causes deviation in the installation position of the induction switch 6. Therefore, the present invention fixes the connecting sleeve 11 on the rotating table 4, and the connecting sleeve 11 is provided with a pipe hole. The motor shaft of the motor 5 extends into the pipe hole. At the same time, the motor shaft and the connecting sleeve 11 are fixedly connected, and the motor shaft and the connecting sleeve 11 rotate at the same time. The connecting sleeve 11 plays a protective role on the motor shaft. The rod 2 9 is fixed with a connecting plate 2 14, and the connecting plate 2 14 is provided with a connecting shaft 15. A bearing 12 is provided in the pipe hole. The connecting shaft 15 is arranged in the bearing hole 13 of the bearing 12, so that the connecting shaft 15 is limited on the connecting sleeve 11, and the connecting sleeve 11 rotates on the connecting shaft 15, so as to prevent the rod 2 9 from deformation, ensure that the installation position of the induction switch 6 is in the designed position, and ensure the precise positioning of the induction switch 6.

[0047] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. An automatic high frequency welding machine, comprising: A workbench assembly, wherein the workbench assembly is provided with a welding gun and a wire feeding gun; A rotating table, on which a plurality of workstations are provided, and the workstations are used to fix the pipes; A motor, the motor is fixed on the workbench assembly, and the motor drives the rotating table to rotate; It is characterized by further comprising: An induction switch, the workbench assembly is fixed with a mounting frame, the induction switch is fixed on the mounting frame, the induction switch is used to sense the position of the workstation to control the stop of the motor, and the welding gun and the wire feeding gun are used to weld the pipes of the piping.

2. An automatic high frequency welding machine according to claim 1, characterized in that: The mounting frame includes a rod member 1 and a rod member 2, wherein the rod member 1 is horizontally fixed on the workbench assembly, and the rod member 2 is vertically welded to a place on the rod member. A connecting plate 1 is fixed to the rod member 2, and the connecting plate 1 is provided with a mounting hole, and the induction switch passes through the mounting hole. At the same time, the induction switch is fixed to the connecting plate 1 through a fixing member.

3. An automatic high frequency welding machine according to claim 2, characterized in that: The rotating table is fixed with a connecting sleeve, and the connecting sleeve is provided with a pipe hole. The motor shaft of the motor extends into the pipe hole, and the motor shaft and the connecting sleeve are fixedly connected. The second rod is fixed with a connecting plate 2, and the connecting plate 2 is provided with a connecting shaft. A bearing is provided in the pipe hole, and the connecting shaft is arranged in the bearing hole of the bearing.

4. The automatic high frequency welding machine according to claim 1, characterized in that: The workstations include workstation one and workstation two, wherein two workstation one are symmetrically arranged after being rotated 180 degrees, and two workstation two are symmetrically arranged after being rotated 180 degrees.

5. An automatic high frequency welding machine according to claim 4, characterized in that: The workstation 1 includes a mounting plate 1 and a support rod 1, the mounting plate 1 is fixed on the rotating table, the support rod 1 is fixed on the mounting plate 1, the support rod 1 is provided with a limiting groove 1, and the pipe body of the piping is limited in the limiting groove 1, the mounting plate 1 is fixed with an auxiliary rod 1, the auxiliary rod 1 is provided with a limiting plate 1, the limiting plate 1 is provided with a limiting groove 2, and the other pipe bodies of the piping are limited in the limiting groove 2, and the support rod 1 is provided with a clamp, and the clamp clamps the pipe body of the piping.

6. An automatic high frequency welding machine according to claim 5, characterized in that: The clamp comprises a fixed plate 1, a driving shaft, a rotating member and a clamping plate, wherein the fixed plate 1 is fixed to the supporting rod 1, the fixed plate 1 is provided with a guide member, the driving shaft passes through the guide member, the guide member is provided with a fastener, the driving shaft is connected with a movable plate, the movable plate is provided with two through holes, the distance between the central axes of the two through holes gradually increases along the direction from the driving shaft to the rotating member, the two rotating members are rotatably connected, the rotating members are both provided with a limit member, the limit member is provided in the through hole, and the clamping plate is fixed to the rotating member; The movable plate is moved horizontally by moving the driving shaft horizontally, and the limit member moves in the through hole, and the rotation of the rotating member is controlled so that the clamping plate clamps the pipe body of the pipe, and the driving shaft is locked by the fastener.

7. An automatic high frequency welding machine according to claim 4, characterized in that: The workstation two includes a mounting plate two and a support rod two, the mounting plate two is fixed on the rotating table, the support rod two is fixed on the mounting plate two, the support rod two is provided with a positioning column, the pipe mouth of the other pipe body of the piping is limited on the positioning column, the mounting plate two is fixed with an auxiliary rod two, the auxiliary rod two is provided with a limiting plate two, the limiting plate two is provided with a limiting groove three, and the other pipe body of the piping is limited in the limiting groove three.

8. The automatic high frequency welding machine according to claim 1, characterized in that: The workbench assembly is provided with a mechanical arm, the mechanical arm is fixed with a second fixing plate, the second fixing plate is provided with a cylinder, the cylinder is connected with a first control frame, the cylinder controls the first control frame to move forward and backward, and the wire feeding gun is installed on the first control frame; The second fixed plate is fixed with a driving structure, the driving structure is connected with a second control frame, the second control frame is fixed with a slider, the second fixed plate is provided with a track, the driving structure controls the second control frame so that the slider moves forward and backward on the track, and the welding gun is installed on the second control frame.

9. The automatic high frequency welding machine according to claim 1, characterized in that: The workbench assembly is provided with a steel pipe frame, the steel pipe frame is provided with a partition, the rotating table is arranged above the partition, the motor is arranged below the partition, and the partition is provided with a baffle.

10. An automatic high frequency welding machine according to claim 9, characterized in that: The partition is provided with a discharge hole, the workbench assembly is provided with a collection frame, the collection frame is provided with a collection trough, and the collection trough is arranged below the discharge hole.

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