Full-automatic girth welding equipment for electrical cabinet body

Abstract

The invention discloses full-automatic girth welding equipment for a cabinet body of an electrical cabinet. The full-automatic girth welding equipment comprises a workbench, an electric adjusting unit and a counterweight unit, the rear side of the upper surface of the workbench is provided with a stand column, the upper end of the stand column is slidably connected with a beam, the front end of the beam is rotatably connected with a rotating shaft, the lower end of the rotating shaft is slidably connected with a rotating arm, the front end of the rotating arm is rotatably connected with a welding gun seat, and the front end of the welding gun seat is provided with a welding gun. The electric adjusting unit is used for driving the welding gun seat to translate and rotate; according to the full-automatic girth welding equipment for the cabinet body of the electrical cabinet, a girth can be automatically welded, meanwhile, the position can be automatically adjusted, mass distribution of one circle of a rotating shaft can be balanced, the welding efficiency is improved, and the welding quality is improved. The stability of the welding gun during rotation and movement is guaranteed, and the welding quality and the welding efficiency of the circular seam are improved.

Description

Technical Field

[0001] The invention relates to the technical field of electric cabinet production, in particular to a fully automatic circumferential seam welding device for an electric cabinet body. Background Art

[0002] With the advancement of science and technology, the application scope of electrical cabinets is becoming more and more extensive. Electrical cabinets are a kind of equipment specially used to install electrical systems, which are used to control, protect and monitor the operation of power systems. Welding processing will be carried out in the production process of electrical cabinets. There will be annular welds at the connection between the outlet pipe and the cabinet body, and annular weld welding equipment will be used for welding. Existing welding equipment generally drives the rotating shaft to rotate through a motor, and the rotating shaft drives the welding gun to rotate through a rotating arm to achieve annular welds. It has a simple structure and low cost. When welding different annular seams, the position of the welding gun will be adjusted. The position of the welding gun is generally positioned by bolt locking. The bolts need to be loosened and tightened during manual adjustment, which makes the adjustment more cumbersome and affects the processing efficiency. In addition, there is generally a lack of counterweight components, the welding gun has a large mass, and the circumferential mass distribution of the rotating shaft is uneven. Vibration will be generated during rotation, thus affecting the welding quality. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a fully automatic circumferential seam welding device for an electrical cabinet body, which can automatically weld the circumferential seam, automatically adjust the position, and balance the mass distribution of the rotating shaft, thereby ensuring the stability of the welding gun during rotation and movement, improving the welding quality and welding efficiency of the circumferential seam, and effectively solving the problems in the background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: a fully automatic circumferential seam welding device for an electrical cabinet, comprising a workbench, an electric adjustment unit and a counterweight unit; Workbench: A column is provided on the rear side of its upper surface, the upper end of the column is slidably connected to a crossbeam, the front end of the crossbeam is rotatably connected to a rotating shaft, the lower end of the rotating shaft is slidably connected to a rotating arm, the front end of the rotating arm is rotatably connected to a welding gun seat, and a welding gun is provided at the front end of the welding gun seat; Electric adjustment unit: used to drive the translation and rotation of the welding gun seat; Counterweight unit: used to balance the weight of the welding gun. It can drive the welding gun to perform circular motion through the drive of the motor to achieve automatic welding of the annular seam. At the same time, it can automatically adjust the diameter of the annular seam and the angle of the welding gun. It has good flexibility and automatic mobile welding, which greatly improves the welding efficiency of the electrical cabinet body. It can also balance the mass distribution of the rotating shaft, thereby improving the stability of the rotating shaft during rotation and reducing vibration, thereby improving the welding quality of the annular seam of the electrical cabinet body.

[0005] Furthermore, a PLC controller is provided on the front side of the workbench, a welding machine is provided inside the workbench, the input end of the welding gun is electrically connected to the output end of the welding machine, the input end of the welding machine is electrically connected to the output end of the PLC controller, and the input end of the PLC controller is electrically connected to an external power supply, which facilitates the control of the electrical appliance and the driving of the welding gun.

[0006] Furthermore, the electric adjustment unit includes a motor 1 and a screw 1, wherein the motor 1 is arranged at the rear end of the rotating arm, the upper end of the rotating arm is rotatably connected to the screw 1, the screw 1 is threadedly connected to the lower end of the rotating shaft, the output shaft of the motor 1 is fixedly connected to the rear end of the screw 1, and the input end of the motor 1 is electrically connected to the output end of the PLC controller, so as to facilitate the control of the rotation radius of the welding gun.

[0007] Furthermore, the electric adjustment unit also includes a worm, a worm wheel and a second motor. The worm is rotatably connected to the front end of the rotating arm, the worm wheel is arranged in the middle of the welding gun seat, the worm is meshingly connected with the worm wheel, and a second motor is provided at the front end of the upper surface of the rotating arm. The output shaft of the second motor is fixedly connected to the upper end of the worm, and the input end of the second motor is electrically connected to the output end of the PLC controller to facilitate the adjustment of the angle of the welding gun.

[0008] Furthermore, the counterweight unit includes a support arm and a counterweight block, wherein the support arm is arranged at the lower end of the rotating shaft, and the middle part of the support arm is slidably connected with the counterweight block to balance the weight of the welding gun.

[0009] Furthermore, the counterweight unit also includes a steel wire rope, a guide wheel and a tension spring. The steel wire rope is arranged on the rear side of the counterweight block, and two guide wheels are symmetrically arranged at the rear end of the support arm. The lower end of the steel wire rope is fixedly connected to the rear end of the rotating arm, and the middle part of the steel wire rope is slidably connected to the guide wheel. The front side of the counterweight block is provided with symmetrically distributed tension springs, and the two tension springs are fixedly connected to the rotating shaft to facilitate the control of the movement of the counterweight block.

[0010] Furthermore, the upper end of the column is rotatably connected to screw rod 2, which is threadedly connected to the beam. The upper end of the column is provided with motor 3, the output shaft of motor 3 is fixedly connected to the upper end of screw rod 2, and the input end of motor 3 is electrically connected to the output end of the PLC controller, so as to conveniently control the up and down movement of the beam.

[0011] Furthermore, a motor 4 is provided on the upper surface of the beam, a gear 1 is provided on the output shaft of the motor 4, a gear 2 is provided on the upper end of the rotating shaft, the gear 1 is meshed and connected with the gear 2, and the input end of the motor 4 is electrically connected to the output end of the PLC controller to facilitate the control of the rotation of the rotating shaft.

[0012] Compared with the prior art, the invention has the following beneficial effects: the fully automatic circumferential seam welding equipment for the electrical cabinet has the following advantages: 1. The motor can drive the welding gun to perform circular motion to achieve automatic welding of the annular seam. At the same time, it can automatically adjust the diameter of the annular seam and the angle of the welding gun. The good flexibility of use and automatic mobile welding greatly improve the welding efficiency of the electrical cabinet.

[0013] 2. A welding gun is provided on one side of the rotating shaft, and a movable counterweight is provided on the other side to balance the mass of the rotating shaft. When adjusting the position of the welding gun, the counterweight can be driven to move in the opposite direction synchronously, which can improve the stability of the rotating shaft and reduce vibration, thereby improving the welding quality of the annular seam of the electrical cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the enlarged structure of location A of the present invention; Figure 3 This is an enlarged structural diagram of B of the present invention; Figure 4 It is a schematic structural diagram of the electric adjustment unit of the present invention.

[0015] In the figure: 1 workbench, 2 column, 3 beam, 4 rotating shaft, 5 rotating arm, 6 welding gun seat, 7 welding gun, 8 electric adjustment unit, 81 motor 1, 82 screw rod 1, 83 worm, 84 worm gear, 85 motor 2, 9 counterweight unit, 91 support arm, 92 counterweight block, 93 wire rope, 94 guide wheel, 95 tension spring, 10 welding machine, 11 PLC controller, 12 screw rod 2, 13 motor 3, 14 motor 4, 15 gear 1, 16 gear 2. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figure 1-4 , This embodiment provides a technical solution: a fully automatic circumferential seam welding device for an electrical cabinet, comprising a workbench 1, an electric adjustment unit 8 and a counterweight unit 9; Workbench 1: A column 2 is provided on the rear side of its upper surface, and the electrical cabinet is fixed to the front side of the upper surface of the workbench 1. The upper end of the column 2 is slidably connected to a crossbeam 3, and the column 2 provides a moving guide for the crossbeam 3. The front end of the crossbeam 3 is rotatably connected to a rotating shaft 4, and the lower end of the rotating shaft 4 is slidably connected to a rotating arm 5. The front end of the rotating arm 5 is rotatably connected to a welding gun seat 6, and a welding gun 7 is provided at the front end of the welding gun seat 6. The crossbeam 3 drives the welding gun 7 to move down and approach the weld through the rotating shaft 4, the rotating arm 5 and the welding gun seat 6. The rotating shaft 4 drives the welding gun 7 to rotate through the rotating arm 5 and the welding gun seat 6. The welding gun 7 rotates one circle to perform circumferential seam welding. A PLC controller 11 is provided on the front side of the workbench 1, and a welding machine 10 is provided inside the workbench 1. The input end of the welding gun 7 is electrically connected to the output end of the welding machine 10, and the input end of the welding machine 10 is electrically connected to the output end of the PLC controller 11. The welding machine 10 controls the operation of the welding gun 7. The weld is welded, the input end of the PLC controller 11 is electrically connected to an external power supply, the upper end of the column 2 is rotatably connected with a screw rod 2 12, the screw rod 2 12 is threadedly connected to the cross beam 3, the upper end of the column 2 is provided with a motor 3 13, the output shaft of the motor 3 13 is fixedly connected to the upper end of the screw rod 2 12, the input end of the motor 3 13 is electrically connected to the output end of the PLC controller 11, the motor 3 13 is running, the output shaft of the motor 3 13 rotates to drive the screw rod 2 12 to rotate, the screw rod 2 12 drives the cross beam 3 to slide downward along the column 2, the upper surface of the cross beam 3 is provided with a motor 4 14, the output shaft of the motor 4 14 is provided with a gear 15, the upper end of the rotating shaft 4 is provided with a gear 2 16, the gear 15 is meshed and connected with the gear 2 16, the input end of the motor 4 14 is electrically connected to the output end of the PLC controller 11, the motor 4 14 drives the gear 15 to rotate, and the gear 15 drives the rotating shaft 4 to rotate through the gear 2 16; The electric adjustment unit 8 is used to drive the translation and rotation of the welding gun seat 6. The electric adjustment unit 8 includes a motor 81 and a screw 82. The motor 81 is arranged at the rear end of the rotating arm 5. The upper end of the rotating arm 5 is rotatably connected with a screw 82. The screw 82 is threadedly connected to the lower end of the rotating shaft 4. The output shaft of the motor 81 is fixedly connected to the rear end of the screw 82. The input end of the motor 81 is electrically connected to the output end of the PLC controller 11. The output shaft of the motor 81 drives the screw 82 to rotate. The screw 82 is threadedly connected to the lower end of the rotating shaft 4, and then the screw 82 drives the rotating arm 5 to slide along the lower end of the rotating shaft 4. The rotating arm 5 drives the welding gun 7 to move through the welding gun seat 6. The distance between the welding gun 7 and the axis of the rotating shaft 4 can be changed, and then the diameter of the welding annular seam can be changed. The electric adjustment unit 8 also includes a worm 83, a worm wheel 84 and a second motor 85. The worm 83 is rotatably connected to the front end of the rotating arm 5, and the worm wheel 84 is arranged in the middle of the welding gun seat 6. The worm 83 is meshed with the worm wheel 84. The front end of the upper surface of the rotating arm 5 is provided with a second motor 85. The output shaft of the second motor 85 is fixedly connected to the upper end of the worm 83. The input end of the second motor 85 is electrically connected to the output end of the PLC controller 11. The second motor 85 drives the worm 83 to rotate, and the worm 83 drives the welding gun seat 6 to rotate through the worm wheel 84. The welding gun seat 6 drives the welding gun 7 to rotate to adjust the welding angle; The counterweight unit 9 is used to balance the weight of the welding gun 7. The counterweight unit 9 includes a support arm 91 and a counterweight block 92. The support arm 91 is arranged at the lower end of the rotating shaft 4. The rear upper end of the rotating arm 5 is slidably connected to the long sliding hole in the middle of the support arm 91. The middle part of the support arm 91 is slidably connected with the counterweight block 92. The counterweight unit 9 also includes a wire rope 93, a guide wheel 94 and a tension spring 95. The wire rope 93 is arranged on the rear side of the counterweight block 92. Two guide wheels 94 are symmetrically arranged at the rear end of the support arm 91. The lower end of the wire rope 93 is fixedly connected to the rear end of the rotating arm 5. The middle part of the wire rope 93 is slidably connected to the guide wheel 94. The guide wheel 94 provides a guide for the wire rope 93. The front of the counterweight block 92 The side is provided with symmetrically distributed tension springs 95, and the two tension springs 95 are fixedly connected to the rotating shaft 4. When the rotating arm 5 extends forward, the counterweight 92 will be pulled backward through the wire rope 93, and the counterweight 92 will slide backward along the support arm 91 to stretch the tension spring 95, so that the counterweight 92 can move backward synchronously during the forward movement of the welding gun 7. When the rotating arm 5 drives the welding gun 7 to move backward, the tension spring 95 pulls the counterweight 92 forward, and the welding gun 7 and the counterweight 92 can be synchronously approached or away from the axis of the rotating shaft 4, thereby reducing the weight difference on both sides of the rotating shaft 4, and can perform dynamic leveling. The vibration of the rotating shaft 4 caused by mass imbalance can be reduced, thereby improving the welding quality.

[0018] The working principle of the fully automatic circumferential seam welding equipment for an electrical cabinet provided by the present invention is as follows: when in use, the electrical cabinet is fixed to the front side of the upper surface of the workbench 1, the PLC controller 11 is adjusted, the motor 3 13 is operated, the output shaft of the motor 3 13 rotates to drive the screw rod 2 12 to rotate, the screw rod 2 12 drives the crossbeam 3 to slide downward along the column 2, the crossbeam 3 drives the welding gun 7 to move down and approach the weld through the rotating shaft 4, the rotating arm 5 and the welding gun seat 6, the welding machine 10 works, the welding machine 10 controls the welding gun 7 to work, the welding gun 7 welds the weld, and at the same time The motor 4 14 drives the gear 15 to rotate, and the gear 15 drives the rotating shaft 4 to rotate through the gear 2 16. The rotating shaft 4 drives the welding gun 7 to rotate through the rotating arm 5 and the welding gun seat 6. The welding gun 7 rotates one circle to perform the circumferential seam welding. After the welding is completed, the motor 4 14 drives the rotating shaft 4 to rotate in the opposite direction for one circle, and the welding gun 7 is reset to avoid the entanglement of the wire. When the diameter of the circumferential seam changes, the PLC controller 11 regulates the operation of the motor 1 81, and the output shaft of the motor 1 81 drives the screw 1 82 to rotate. The screw 1 82 and the lower end screw of the rotating shaft 4 are connected. The screw rod 82 is connected with the rotating arm 5, and then the screw rod 82 drives the rotating arm 5 to slide along the lower end of the rotating shaft 4. The rotating arm 5 drives the welding gun 7 to move through the welding gun seat 6, which can change the distance between the welding gun 7 and the axis of the rotating shaft 4, and then the diameter of the welding annular seam can be changed. In the process of the rotating arm 5 extending forward, the counterweight block 92 is pulled backward through the wire rope 93, and the counterweight block 92 slides backward along the support arm 91 to stretch the tension spring 95, and then the counterweight block 92 can move backward synchronously during the forward movement of the welding gun 7. When the rotating arm 5 drives the welding gun 7 to move backward, the tension spring 95 pulls The dynamic counterweight 92 moves forward, and the welding gun 7 and the counterweight 92 can be synchronously approached or away from the axis of the rotating shaft 4, thereby reducing the weight difference on both sides of the rotating shaft 4, and can be dynamically leveled. The vibration of the rotating shaft 4 caused by mass imbalance can be reduced, and the welding quality can be improved. In addition, during the welding process, the angle of the welding gun 7 can be adjusted according to the needs of use. The motor 85 drives the worm 83 to rotate, and the worm 83 drives the welding gun seat 6 to rotate through the worm gear 84, and the welding gun seat 6 drives the welding gun 7 to rotate to adjust the welding angle.

[0019] It is worth noting that the PLC controller 11, welding machine 10, motor 1 81, motor 2 85, motor 3 13 and motor 4 14 disclosed in the above embodiments can be freely configured according to the actual application scenario. The PLC controller 11 can use a PLC controller of model FX3U-128MT, the welding machine 10 can use a laser welding machine of model HW-LP-WH500E, and the motor 1 81, motor 2 85, motor 3 13 and motor 4 14 can all use servo motors of model AKM2G series. The PLC controller 11 controls the welding machine 10, motor 1 81, motor 2 85, motor 3 13 and motor 4 14 to work using methods commonly used in the prior art.

[0020] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A fully automatic circumferential seam welding device for electrical cabinets, characterized in that: It comprises a workbench (1), an electric adjustment unit (8) and a counterweight unit (9); A workbench (1): a column (2) is provided on the rear side of the upper surface thereof, the upper end of the column (2) is slidably connected to a crossbeam (3), the front end of the crossbeam (3) is rotatably connected to a rotating shaft (4), the lower end of the rotating shaft (4) is slidably connected to a rotating arm (5), the front end of the rotating arm (5) is rotatably connected to a welding gun seat (6), and a welding gun (7) is provided at the front end of the welding gun seat (6); Electric adjustment unit (8): used to drive the translation and rotation of the welding gun holder (6); Counterweight unit (9): used to balance the weight of the welding gun (7).

2. The fully automatic circumferential seam welding equipment for an electrical cabinet according to claim 1 is characterized in that: A PLC controller (11) is provided on the front side of the workbench (1), a welding machine (10) is provided inside the workbench (1), an input end of the welding gun (7) is electrically connected to an output end of the welding machine (10), an input end of the welding machine (10) is electrically connected to an output end of the PLC controller (11), and an input end of the PLC controller (11) is electrically connected to an external power supply.

3. The fully automatic circumferential seam welding equipment for an electrical cabinet according to claim 2 is characterized in that: The electric adjustment unit (8) comprises a motor 1 (81) and a screw 1 (82), wherein the motor 1 (81) is arranged at the rear end of the rotating arm (5), the upper end of the rotating arm (5) is rotatably connected to the screw 1 (82), the screw 1 (82) is threadedly connected to the lower end of the rotating shaft (4), the output shaft of the motor 1 (81) is fixedly connected to the rear end of the screw 1 (82), and the input end of the motor 1 (81) is electrically connected to the output end of the PLC controller (11).

4. The fully automatic circumferential seam welding equipment for an electrical cabinet according to claim 2, characterized in that: The electric adjustment unit (8) further comprises a worm (83), a worm wheel (84) and a second motor (85); the worm (83) is rotatably connected to the front end of the rotating arm (5); the worm wheel (84) is arranged at the middle of the welding gun seat (6); the worm (83) and the worm wheel (84) are meshingly connected; the front end of the upper surface of the rotating arm (5) is provided with a second motor (85); the output shaft of the second motor (85) is fixedly connected to the upper end of the worm (83); and the input end of the second motor (85) is electrically connected to the output end of the PLC controller (11).

5. The fully automatic circumferential seam welding equipment for electrical cabinets according to claim 1 is characterized in that: The counterweight unit (9) comprises a support arm (91) and a counterweight block (92); the support arm (91) is arranged at the lower end of the rotating shaft (4); and the middle part of the support arm (91) is slidably connected to the counterweight block (92).

6. The fully automatic circumferential seam welding equipment for an electrical cabinet according to claim 5, characterized in that: The counterweight unit (9) further comprises a steel wire rope (93), a guide wheel (94) and a tension spring (95), wherein the steel wire rope (93) is arranged on the rear side of the counterweight block (92), and two guide wheels (94) are symmetrically arranged on the rear end of the support arm (91), the lower end of the steel wire rope (93) is fixedly connected to the rear end of the rotating arm (5), the middle part of the steel wire rope (93) is slidably connected to the guide wheel (94), and the front side of the counterweight block (92) is provided with symmetrically distributed tension springs (95), and the two tension springs (95) are both fixedly connected to the rotating shaft (4).

7. The fully automatic circumferential seam welding equipment for an electrical cabinet according to claim 2, characterized in that: The upper end of the column (2) is rotatably connected to a screw rod 2 (12), which is threadedly connected to the crossbeam (3). A motor 3 (13) is provided at the upper end of the column (2), an output shaft of the motor 3 (13) is fixedly connected to the upper end of the screw rod 2 (12), and an input end of the motor 3 (13) is electrically connected to an output end of a PLC controller (11).

8. The fully automatic circumferential seam welding equipment for electrical cabinets according to claim 2 is characterized in that: A motor 4 (14) is provided on the upper surface of the crossbeam (3), a gear 1 (15) is provided on the output shaft of the motor 4 (14), a gear 2 (16) is provided on the upper end of the rotating shaft (4), the gear 1 (15) is meshedly connected with the gear 2 (16), and the input end of the motor 4 (14) is electrically connected to the output end of the PLC controller (11).

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