Full-automatic double-station special-shaped pipe fitting welding machine

Abstract

The utility model relates to the technical field of welding machines, and discloses a full-automatic double-station special-shaped pipe fitting welding machine which comprises a welding table and a support erected above the welding table, a center control box is arranged on the left side of the upper surface of the welding table, and two welding stations are longitudinally arranged on the surface of the welding table in parallel. Two clamping assemblies corresponding to the two welding stations are arranged on the surface of the welding table, and welding guns corresponding to the welding stations are arranged on the surface of the support. In the welding process, the stepping motor drives the driving gear to rotate, the four-jaw chuck can be driven to rotate on the surface of the sliding seat based on meshing of the driven gear and the driving gear, the welding angle is adjusted, the first servo motor drives the worm to rotate, and the worm is driven to rotate based on meshing of the worm and the worm wheel. And the center shaft and the swing base can be driven to rotate, the horizontal angle of welding is adjusted, the degree of freedom is high, and the requirement for welding all corners of the special-shaped pipe fitting is met.

Description

Technical Field

[0001] The utility model relates to the technical field of welding machines, and more specifically to a full-automatic double-station special-shaped pipe welding machine. Background Art

[0002] When processing pipe fittings, pipe welding machines are often used for circumferential welding, such as welding between two sections of pipe fittings, welding between pipe fittings and threaded pipes or nut pipe fittings.

[0003] The existing welding machine uses a chuck to clamp the weldment and then uses a welding gun to weld the joints of the pipe fittings. However, when welding special-shaped pipe fittings, the welding gun is often restricted by the structure of the pipe fittings themselves, so that it is difficult to meet the demand for complete welding of the surface of the special-shaped pipe fittings. In view of this, the utility model proposes a fully automatic double-station special-shaped pipe fitting welding machine with a high degree of freedom to solve this problem. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a fully automatic double-station special-shaped pipe welding machine to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solution: a fully automatic double-station special-shaped pipe welding machine, comprising a welding table and a bracket mounted above the welding table, a central control box is arranged on the left side of the upper surface of the welding table, two welding stations are arranged longitudinally and parallelly on the surface of the welding table, two clamping assemblies are arranged on the surface of the welding table corresponding to the two welding stations respectively, and a welding gun is arranged on the surface of the bracket corresponding to the welding station;

[0006] The clamping assembly comprises a base fixedly mounted on the surface of the welding table, the top of the base is rotatably connected with a central axis, the top of the central axis is fixedly mounted with a swing seat, the surface of the swing seat is fixedly mounted with a slide rail, the surface of the slide rail is slidably connected with a sliding seat, the surface of the sliding seat is provided with a four-jaw chuck for clamping external pipe fittings, and the center position of the four-jaw chuck is provided with an avoidance hole for inserting pipe fittings;

[0007] The four-jaw chuck is rotatably connected to the surface of the sliding seat through a bearing, and a rotation drive assembly is arranged between the sliding seat and the four-jaw chuck. The rotation drive assembly includes a stepper motor fixedly mounted on the surface of the sliding seat, a driving gear is fixedly mounted on the surface of the output shaft of the stepper motor, and a driven gear is fixedly mounted on the outer arc surface of the four-jaw chuck, and the driving gear and the driven gear are meshed.

[0008] Furthermore, a transmission cavity is opened inside the base, a first servo motor is fixedly installed on the front side of the base, the output shaft of the first servo motor extends into the transmission cavity and is fixedly installed with a worm, a worm wheel is fixedly installed on the surface of the central axis inside the transmission cavity, and the worm is meshed with the worm wheel.

[0009] Furthermore, a hydraulic rod is fixedly mounted on the surface of the swing seat, and a telescopic end of the hydraulic rod is fixed to the surface of the sliding seat.

[0010] Furthermore, the welding gun is movably mounted on the surface of the bracket, a position adjustment component is provided between the welding gun and the bracket, and the position adjustment component is connected to an external industrial camera signal.

[0011] Furthermore, the position adjustment assembly includes a longitudinal screw rotatably connected to the surface of the bracket, the surface of the longitudinal screw is threadedly connected to the longitudinal slide, the longitudinal slide is slidably connected to the bracket, a second servo motor that drives the longitudinal slide to rotate is fixedly installed on the surface of the bracket, a vertical column is fixedly installed on the surface of the longitudinal slide, a vertical limit groove is opened on the surface of the vertical column, a third servo motor is fixedly installed on the top of the vertical column, the output shaft of the third servo motor extends to the inside of the vertical limit groove and is fixedly installed with the vertical screw, the surface of the vertical screw is threadedly connected to the lifting frame, the lifting frame is slidably connected to the inside of the vertical limit groove, and the welding gun is embedded in the surface of the lifting frame.

[0012] Furthermore, two receiving trays are provided on the surface of the welding table corresponding to the two welding stations respectively.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model uses an external feeding mechanism to feed materials, then uses a four-jaw chuck to clamp the pipe fittings, and uses a welding gun to weld the pipe fitting joints after clamping. During the welding process, the driving gear is driven to rotate by a stepper motor, and based on the meshing of the driven gear and the driving gear, the four-jaw chuck can be driven to rotate on the surface of the sliding seat to adjust the welding angle. The worm is driven to rotate by a first servo motor, and based on the meshing of the worm and the worm wheel, the center axis and the swing seat can be driven to rotate to adjust the horizontal angle of the welding. It has a high degree of freedom and meets the needs of welding various corners of special-shaped pipe fittings.

[0015] 2. The utility model drives the sliding seat to slide on the surface of the swing seat along the slide rail by telescoping the hydraulic rod, so as to adjust the welding position laterally and adjust the distance between the pipe fitting and the welding gun, so as to meet the needs of welding pipe fittings of different sizes; the longitudinal slide and the vertical column can be driven to move longitudinally on the surface of the bracket by the second servo motor to drive the vertical screw to rotate, and the lifting frame can be driven to rise and fall by the third servo motor to drive the vertical screw to rotate, thereby achieving the purpose of adjusting the longitudinal position and height of the welding gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the utility model from a viewing angle;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from the second viewing angle;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the swing seat of the utility model;

[0019] Figure 4 This is a schematic diagram of the front view structure of the four-jaw chuck of the utility model;

[0020] Figure 5 It is a schematic diagram of the top-sectional structure of the base of the utility model.

[0021] The accompanying drawings are marked as follows: 1. welding table; 2. bracket; 3. central control box; 4. receiving tray; 5. welding gun; 6. base; 7. center axis; 8. swing seat; 9. slide rail; 10. sliding seat; 11. four-jaw chuck; 12. avoidance hole; 13. stepping motor; 14. driving gear; 15. driven gear; 16. first servo motor; 17. worm; 18. worm wheel; 19. hydraulic rod; 20. longitudinal screw; 21. longitudinal slide; 22. second servo motor; 23. vertical column; 24. third servo motor; 25. vertical screw; 26. lifting frame. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are only examples. The fully automatic double-station special-shaped pipe welding machine involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0023] Reference Figure 1-5The utility model provides a fully automatic double-station special-shaped pipe welding machine, including a welding table 1 and a bracket 2 erected above the welding table 1, a central control box 3 is arranged on the left side of the upper surface of the welding table 1, and the central control box 3 is connected to the external power system. Two welding stations are arranged longitudinally and parallel on the surface of the welding table 1, and two receiving trays 4 are arranged on the surface of the welding table 1 corresponding to the two welding stations respectively.

[0024] By providing the receiving tray 4, the welding slag can be collected.

[0025] Two clamping assemblies are respectively arranged on the surface of the welding table 1 corresponding to the two welding stations, and a welding gun 5 is respectively arranged on the surface of the bracket 2 corresponding to the welding stations.

[0026] The clamping assembly includes a base 6 fixedly mounted on the surface of the welding table 1, the top of the base 6 is rotatably connected to a center shaft 7, the top of the center shaft 7 is fixedly mounted with a swing seat 8, the surface of the swing seat 8 is fixedly mounted with a slide rail 9, the surface of the slide rail 9 is slidably connected with a sliding seat 10, the surface of the sliding seat 10 is provided with a four-jaw chuck 11 for clamping external pipe fittings, and the center position of the four-jaw chuck 11 is provided with an avoidance hole 12 for inserting pipe fittings.

[0027] An external loading mechanism is used for loading, and then a four-jaw chuck 11 is used to clamp the pipe fittings, and after clamping, a welding gun 5 is used to weld the pipe fitting joints.

[0028] The four-jaw chuck 11 is rotatably connected to the surface of the sliding seat 10 through a bearing, and a rotation drive assembly is arranged between the sliding seat 10 and the four-jaw chuck 11. The rotation drive assembly includes a stepper motor 13 fixedly mounted on the surface of the sliding seat 10, a driving gear 14 is fixedly mounted on the output shaft surface of the stepper motor 13, and a driven gear 15 is fixedly mounted on the outer arc surface of the four-jaw chuck 11, and the driving gear 14 and the driven gear 15 are meshed.

[0029] A transmission cavity is opened inside the base 6, and a first servo motor 16 is fixedly installed on the front side of the base 6. The output shaft of the first servo motor 16 extends into the transmission cavity and is fixedly installed with a worm 17. A worm wheel 18 is fixedly installed on the surface of the central shaft 7 inside the transmission cavity, and the worm 17 is meshed with the worm wheel 18.

[0030] An external industrial camera is used to observe the position of the pipe fitting, and then the welding gun 5 is controlled to perform welding. During the welding process, the driving gear 14 is driven to rotate by the stepping motor 13. Based on the meshing of the driven gear 15 and the driving gear 14, the four-jaw chuck 11 can be driven to rotate on the surface of the sliding seat 10 to adjust the welding angle. The worm 17 is driven to rotate by the first servo motor 16. Based on the meshing of the worm 17 and the worm wheel 18, the center axis 7 and the swing seat 8 can be driven to rotate to adjust the horizontal angle of the welding. It has a high degree of freedom and can meet the needs of welding various corners of special-shaped pipe fittings.

[0031] The welding gun 5 is movably mounted on the surface of the bracket 2 , and a position adjustment component is provided between the welding gun 5 and the bracket 2 , and the position adjustment component is connected to an external industrial camera signal.

[0032] The position adjustment assembly includes a longitudinal screw 20 rotatably connected to the surface of the bracket 2, the surface of the longitudinal screw 20 is threadedly connected to the longitudinal slide 21, the longitudinal slide 21 is slidably connected to the bracket 2, and a second servo motor 22 for driving the longitudinal slide 21 to rotate is fixedly installed on the surface of the bracket 2, a vertical column 23 is fixedly installed on the surface of the longitudinal slide 21, a vertical limit groove is opened on the surface of the vertical column 23, a third servo motor 24 is fixedly installed on the top of the vertical column 23, the output shaft of the third servo motor 24 extends to the inside of the vertical limit groove and is fixedly installed with a vertical screw 25, the surface of the vertical screw 25 is threadedly connected to the lifting frame 26, the lifting frame 26 is slidably connected to the inside of the vertical limit groove, and the welding gun 5 is embedded in the surface of the lifting frame 26.

[0033] The second servo motor 22 drives the longitudinal screw 20 to rotate, which can drive the longitudinal slide 21 and the vertical column 23 to move longitudinally on the surface of the bracket 2. The third servo motor 24 drives the vertical screw 25 to rotate, which can drive the lifting frame 26 to move up and down, thereby achieving the purpose of adjusting the longitudinal position and height of the welding gun 5, and the adjustment adaptability is strong.

[0034] A hydraulic rod 19 is fixedly mounted on the surface of the swing seat 8 , and a telescopic end of the hydraulic rod 19 is fixed to the surface of the sliding seat 10 .

[0035] Furthermore, during welding, the hydraulic rod 19 is extended and retracted to drive the sliding seat 10 to slide along the slide rail 9 on the surface of the swing seat 8, so that the welding position can be adjusted laterally and the distance between the pipe fitting and the welding gun 5 can be adjusted to meet the needs of welding pipe fittings of different sizes.

[0036] Finally, it should be noted that the drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention, and other structures may refer to the usual design. In the absence of conflict, the same embodiment and different embodiments of the present invention may be combined with each other.

Claims

1. A fully automatic double-station special-shaped pipe welding machine, comprising a welding table (1) and a bracket (2) mounted above the welding table (1), characterized in that: A central control box (3) is arranged on the left side of the upper surface of the welding platform (1); two welding stations are arranged longitudinally and parallelly on the surface of the welding platform (1); two clamping assemblies are arranged on the surface of the welding platform (1) respectively corresponding to the two welding stations; and a welding gun (5) is arranged on the surface of the bracket (2) corresponding to the welding station; The clamping assembly comprises a base (6) fixedly mounted on the surface of the welding table (1); the top of the base (6) is rotatably connected to a central shaft (7); the top of the central shaft (7) is fixedly mounted to a swing seat (8); a slide rail (9) is fixedly mounted on the surface of the swing seat (8); a sliding seat (10) is slidably connected to the surface of the slide rail (9); a four-jaw chuck (11) for clamping an external pipe fitting is arranged on the surface of the sliding seat (10); a central position of the four-jaw chuck (11) is provided with an avoidance hole (12) for inserting the pipe fitting; The four-jaw chuck (11) is rotatably connected to the surface of the sliding seat (10) via a bearing, and a rotation drive assembly is arranged between the sliding seat (10) and the four-jaw chuck (11), the rotation drive assembly comprising a stepper motor (13) fixedly mounted on the surface of the sliding seat (10), a driving gear (14) fixedly mounted on the output shaft surface of the stepper motor (13), and a driven gear (15) fixedly mounted on the outer arc surface of the four-jaw chuck (11), and the driving gear (14) and the driven gear (15) are meshed.

2. The fully automatic double-station special-shaped pipe welding machine according to claim 1 is characterized in that: A transmission cavity is provided inside the base (6), a first servo motor (16) is fixedly mounted on the front side of the base (6), an output shaft of the first servo motor (16) extends into the transmission cavity and is fixedly mounted with a worm (17), a worm wheel (18) is fixedly mounted on the surface of the central shaft (7) inside the transmission cavity, and the worm (17) is meshed with the worm wheel (18).

3. The fully automatic double-station special-shaped pipe welding machine according to claim 1 is characterized in that: A hydraulic rod (19) is fixedly mounted on the surface of the swing seat (8), and the telescopic end of the hydraulic rod (19) is fixed to the surface of the sliding seat (10).

4. The fully automatic double-station special-shaped pipe welding machine according to claim 1 is characterized in that: The welding gun (5) is movably mounted on the surface of the bracket (2), and a position adjustment component is provided between the welding gun (5) and the bracket (2), and the position adjustment component is connected to an external industrial camera signal.

5. The fully automatic double-station special-shaped pipe welding machine according to claim 4 is characterized in that: The position adjustment assembly comprises a longitudinal screw (20) rotatably connected to the surface of the bracket (2); the surface of the longitudinal screw (20) is threadedly connected to a longitudinal slide (21); the longitudinal slide (21) is slidably connected to the bracket (2); a second servo motor (22) for driving the longitudinal slide (21) to rotate is fixedly installed on the surface of the bracket (2); a vertical column (23) is fixedly installed on the surface of the longitudinal slide (21); a vertical limit groove is provided on the surface of the vertical column (23); a third servo motor (24) is fixedly installed on the top of the vertical column (23); the output shaft of the third servo motor (24) extends to the inside of the vertical limit groove and is fixedly installed with a vertical screw (25); the surface of the vertical screw (25) is threadedly connected to a lifting frame (26); the lifting frame (26) is slidably connected to the inside of the vertical limit groove; and the welding gun (5) is embedded in the surface of the lifting frame (26).

6. The fully automatic double-station special-shaped pipe welding machine according to claim 1 is characterized in that: The surface of the welding table (1) is provided with two material receiving trays (4) corresponding to two welding stations respectively.

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