Welding device for transformer production

Abstract

The welding device for transformer production comprises a rack, two clamps and a driving mechanism, the two clamps and the driving mechanism are arranged on the rack, the two clamps are arranged along the same horizontal axis, one clamp is used for clamping a copper wire of a winding, and the other clamp is used for clamping a copper wire of the winding. The other clamp is used for clamping the copper wire of the tap and aligning the copper wire of the tap with the copper wire of the winding up and down; the driving mechanism is arranged on the machine frame and comprises a rotating disc and a driving assembly, and when the rotating disc rotates in one direction, the driving assembly drives the two clamps to synchronously clamp or loosen. By arranging the two clamps, the winding copper wire and the tap copper wire can be clamped at the same time, and it is guaranteed that the positions of the winding copper wire and the tap copper wire do not change relatively after clamping; meanwhile, by arranging the driving mechanism, clamping and loosening of the clamp can be achieved only through one-way rotation of the rotating disc, and the tightness of the clamp is controlled more easily.

Description

Technical Field

[0001] The present invention relates to the technical field of transformer welding equipment, and particularly relates to a welding device for transformer production. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. In appearance, it mainly consists of a transformer box body, high-voltage insulating bushings, low-voltage insulating bushings, an oil conservator, and heat dissipation pipes, etc. Among them, the heat dissipation pipes are evenly connected to the outer wall of the transformer box body, playing a role in volatilizing the heat in the box body in a timely manner.

[0003] Currently, in the welding process of the high-voltage winding tap of a dry-type transformer, after a worker holds the high-voltage tap and the transformer winding in alignment with a bite pliers in one hand, the welding is then carried out with a welding torch held in the other hand. Such a method has the following deficiencies: Firstly, the terminals are manually clamped, and the clamping force cannot be kept constant and uniform. Secondly, during the welding process, it is easy for the human hand to be misaligned, resulting in the misalignment of the joint and the winding. The above situations will affect the welding quality. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a welding device for transformer production. By setting two jigs, the simultaneous clamping of the winding copper wire and the tap copper wire can be realized, and after clamping, the relative positions of the two are ensured not to change; at the same time, by setting a driving mechanism, the clamping and loosening of the jigs can be realized only through the one-way rotation of the turntable, and the control of the tightness of the jigs is simpler.

[0005] The purpose of the present invention is achieved through the following technical solutions: A welding device for transformer production includes a frame, two jigs arranged on the frame, and a driving mechanism. The two jigs are arranged along the same horizontal axis. One of the jigs is used to clamp the copper wire of the winding, and the other jig is used to clamp the copper wire of the tap and align the copper wire of the tap with the copper wire of the winding vertically. The driving mechanism is arranged on the frame and includes a turntable and a driving component. When the turntable rotates in one direction, the driving component drives the two jigs to clamp or loosen synchronously.

[0006] Further, the jig includes a mounting disc, a transmission rod, and two clamping blocks. The mounting disc is provided with a dovetail-shaped driving groove. When the two clamping blocks are clamped, they form a dovetail shape. The clamping block has a first inclined surface, and the inclined surface of the clamping block fits with the second inclined surface of the driving groove. A sliding groove is provided at the bottom of the driving groove. The sliding groove is parallel to the second inclined surface. The clamping block is slidably matched with the sliding block through a sliding rod. The transmission rod is arranged along the diameter of the mounting disc, and the first end of the transmission rod extends into the driving groove and is in transmission connection with the two clamping blocks. The second end of the transmission rod is in transmission connection with the driving assembly, and the driving assembly drives the transmission rod to perform reciprocating linear motion along the radial direction of the mounting disc.

[0007] Further, a transmission groove is provided at the first end of the clamping block close to the transmission rod. The transmission grooves of the two clamping blocks cooperate to form a T-shaped groove. The end of the transmission rod is connected with a driving circular plate through a circular sleeve, and the driving circular plate is arranged in the T-shaped groove.

[0008] Further, the circular sleeve and the driving circular plate are of an integral structure.

[0009] Further, a counterbore is provided in the middle of the driving circular plate, and a bolt coaxially passing through the circular sleeve is arranged in the counterbore. The bolt is in threaded connection with the first end of the transmission rod.

[0010] Further, two baffle plates are further provided on the mounting disc, and the two baffle plates are respectively arranged on both sides of the driving groove.

[0011] Further, the driving assembly includes a driving track arranged on the turntable, and two driving rods are slidably matched on the driving track. The two driving rods are respectively connected with the transmission rods of the two jigs.

[0012] Further, a circular sleeve is fixedly arranged outside the transmission rod, and the circumferential wall of the circular sleeve is fixedly connected with the driving rod through a cross bar.

[0013] Further, the cross bar and the driving rod are fixedly connected by welding or fixed by bolts.

[0014] The beneficial effects of the present invention are as follows: By arranging two jigs, the present invention can realize the simultaneous clamping of the winding copper wire and the tap copper wire, and ensure that their positions do not change relatively after clamping; at the same time, by arranging the driving mechanism, the clamping and loosening of the jig can be realized only by the one-way rotation of the turntable, and the control of the tightness of the jig is simpler. Description of the Drawings

[0015] Figure 1 is a perspective view of the welding device for transformer production in the embodiment of the present invention; Figure 2 is a perspective view of the jig; Figure 3 is a top view of the welding device for transformer production; Figure 4 is Figure 3 a cross-sectional view taken along the A-A direction in In the figure, 1 is the frame; 2 is the fixture; 3 is the driving mechanism; 4 is the turntable; 5 is the driving component; 6 is the mounting disc; 7 is the transmission rod; 8 is the clamping block; 9 is the driving groove; 10 is the sliding groove; 11 is the sliding rod; 12 is the T-shaped groove; 13 is the driving circular plate; 14 is the bolt; 15 is the baffle; 16 is the circular sleeve; 17 is the cross bar; 18 is the driving track; 19 is the driving rod. Specific implementation manner

[0016] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0017] Refer to Figures 1 - 4 , the present invention provides a technical solution: Embodiment

[0018] As Figures 1 - 4 shown, a welding device for transformer production includes a frame 1, two fixtures 2 provided on the frame 1, and a driving mechanism 3. The two fixtures 2 are arranged along the same horizontal axis. One of the fixtures 2 is used to clamp the copper wire of the winding, and the other fixture 2 is used to clamp the copper wire of the tap and align the copper wire of the tap with the copper wire of the winding up and down; The driving mechanism 3 is provided on the frame 1 and includes a turntable 4 and a driving component 5. When the turntable 4 rotates unidirectionally, the driving component 5 drives the two fixtures 2 to clamp or loosen synchronously.

[0019] The fixture 2 includes a mounting disc 6, a transmission rod 7, and two clamping blocks 8. The mounting disc 6 is provided with a dovetail-shaped driving groove 9 (wherein the driving groove 9 penetrates to the top of the mounting disc 6 and does not penetrate to the bottom). When the two clamping blocks 8 are clamped, they are in a dovetail shape. The clamping block 8 has a first inclined surface, and the inclined surface of the clamping block 8 fits with the second inclined surface of the driving groove 9; The bottom of the driving groove 9 is provided with a sliding groove 10, and the sliding groove 10 is parallel to the second inclined surface. The clamping block 8 is in sliding fit with the sliding block through a sliding rod 11; The transmission rod 7 is arranged along the diameter of the mounting disc 6, and the first end of the transmission rod 7 extends into the driving groove 9 and is in transmission connection with the two clamping blocks 8. The second end of the transmission rod 7 is in transmission connection with the driving component 5, and the driving component 5 drives the transmission rod 7 to make a reciprocating linear motion along the radial direction of the mounting disc 6.

[0020] As Figure 2As shown, a driving groove is provided at the first end of the clamping block 8 close to the driving rod 7. The driving grooves of the two clamping blocks 8 cooperate to form a T-shaped groove 12. The end of the driving rod 7 is connected with a driving circular plate 13 through a circular sleeve 16, and the driving circular plate 13 is arranged in the T-shaped groove 12.

[0021] The circular sleeve 16 and the driving circular plate 13 are of an integral structure. A counterbore is provided in the middle of the driving circular plate 13, and a bolt 14 coaxially passing through the circular sleeve 16 is arranged in the counterbore. The bolt 14 is threadedly connected with the first end of the driving rod 7.

[0022] Two baffles 15 for preventing the clamping block 8 from disengaging from the top of the driving groove 9 are further provided on the mounting disc 6. The two baffles 15 are respectively arranged on both side edges of the driving groove 9. The baffle 15 is used for axially limiting the clamping block 8.

[0023] The driving assembly 5 includes a driving track 18 arranged on the turntable 4. Two driving rods 19 are slidably matched on the driving track 18, and the two driving rods 19 are respectively connected with the driving rods 7 of the two jigs 2. The driving track 18 is composed of two semi-elliptical slide rails, and the two semi-elliptical slide rails form an "8"-shaped driving track 18.

[0024] A circular sleeve 16 is fixedly arranged on the outside of the driving rod 7, and the circumferential wall of the circular sleeve 16 is fixedly connected with the driving rod 19 through a cross bar 17. Among them, the cross bar 17 and the driving rod 19 are in an L shape.

[0025] Among them, 1. As Figure 3 shown, the upper jig 2 is used for clamping the tapping head. A circular accommodating hole is arranged between the two clamping blocks 8, so that the tapping head can be located in the accommodating hole, and the copper wire of the tapping head is clamped between the two clamping blocks 8. 2. Anti-slip saw teeth are arranged on the inner side wall of the clamping block 8. 3. The turntable 4 is rotationally connected with the frame 1 through a rotating shaft, the rotating shaft is coaxially fixed with the output shaft of the motor, and the motor is arranged on the back of the frame 1. 4. A transmission pin is vertically and fixedly connected to the end of the driving rod 19, and the transmission pin is slidably arranged in the driving track 18.

[0026] Working principle: When the driving track 18 on the turntable 4 is in Figure 1 a state, the two clamping blocks 8 are in a clamped state. When it is necessary to loosen the clamping block 8, start the motor to drive the turntable 4 to rotate. When the turntable 4 rotates, the driving rod 19 makes a reciprocating linear motion along the radial direction of the mounting disc 6 under the action of the transmission pin: when the transmission pin moves 1 / 2 of a slide rail, the two driving rods 19 move towards the direction away from each other respectively, and this process drives the two driving rods 7 to move away from each other.

[0027] When the transmission rod 7 moves, the two clamping blocks 8 are guided by the sliding rod 11 and the sliding groove 10 during their movement, so that the clamping blocks 8 can only move along the direction of the second inclined plane under the action of the driving circular plate 13. During this process, the two clamping blocks 8 are separated, and thus the distance between their clamping surfaces is increased. At this time, the copper wire of the winding and the copper wire of the tap can be respectively placed between the clamping blocks 8 of the two jigs 2. After the copper wire is in place, the motor is started. The motor drives the driving circular plate 13 to continue rotating in the same direction. When the transmission pin continues to move 1 / 2 of a slide rail, the two driving rods 19 move towards each other. This process drives the two transmission rods 7 to approach each other, and thus the two clamping blocks 8 are clamped. The transmission process is opposite to the process of the clamping blocks 8 loosening described above, and will not be elaborated here.

[0028] The two jigs 2 protrude from the edge of the frame 1, so that the space below the copper wire can be left empty during welding, thus avoiding the welding flame from burning the frame 1 and also avoiding heat reflection.

[0029] The present invention can realize the simultaneous clamping of the copper wire of the winding and the copper wire of the tap by setting two jigs, and ensure that their positions do not change relatively after clamping; at the same time, by setting the driving mechanism, the clamping and loosening of the jig can be realized only by the one-way rotation of the turntable, and the control of the tightness of the jig is simpler.

[0030] The above are only the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the concept described herein through the above teachings or the technology or knowledge in related fields. And the changes and modifications made by those skilled in the art that do not depart from the spirit and scope of the present invention should all be within the protection scope of the appended claims of the present invention.

Claims

1. A welding device for transformer production, characterized in that: It includes a frame, two clamps arranged on the frame, and a driving mechanism. The two clamps are arranged along the same horizontal axis. One of the clamps is used to clamp the copper wire of the winding, and the other clamp is used to clamp the copper wire of the tap and align the copper wire of the tap with the copper wire of the winding vertically and horizontally. The driving mechanism is arranged on the frame and includes a turntable and a driving component. When the turntable rotates unidirectionally, the driving component drives the two clamps to clamp or loosen synchronously.

2. The welding device for transformer production according to claim 1, characterized in that: The clamp includes a mounting disc, a transmission rod, and two clamping blocks. The mounting disc is provided with a dovetail-shaped driving groove. When the two clamping blocks are clamped, they are in a dovetail shape. The clamping block has a first inclined surface, and the inclined surface of the clamping block fits with the second inclined surface of the driving groove. A sliding groove is provided at the bottom of the driving groove. The sliding groove is parallel to the second inclined surface. The clamping block is slidably matched with the sliding block through a sliding rod. The transmission rod is arranged along the diameter of the mounting disc, and the first end of the transmission rod extends into the driving groove and is in transmission connection with the two clamping blocks. The second end of the transmission rod is in transmission connection with the driving component, and the driving component drives the transmission rod to perform a reciprocating linear motion along the radial direction of the mounting disc.

3. The welding device for transformer production according to claim 2, wherein: A transmission groove is provided at the first end of the clamping block close to the transmission rod. The transmission grooves of the two clamping blocks cooperate to form a T-shaped groove. The end of the transmission rod is connected with a driving circular plate through a circular sleeve, and the driving circular plate is arranged in the T-shaped groove.

4. The welding device for transformer production according to claim 3, wherein: The circular sleeve and the driving circular plate are of an integrated structure.

5. The welding device for transformer production according to claim 4, wherein: A counterbore is provided in the middle of the driving circular plate. A bolt coaxially passing through the circular sleeve is arranged in the counterbore, and the bolt is in threaded connection with the first end of the transmission rod.

6. The welding device for transformer production according to claim 2, wherein: Two baffles are further provided on the mounting disc, and the two baffles are respectively arranged on both sides of the driving groove.

7. The welding device for transformer production according to claim 2, wherein: The driving component includes a driving track arranged on the turntable. Two driving rods are slidably matched on the driving track, and the two driving rods are respectively connected with the transmission rods of the two clamps.

8. The welding device for transformer production according to claim 7, characterized in that: A circular sleeve is fixedly arranged outside the transmission rod, and the circumferential wall of the circular sleeve is fixedly connected with the driving rod through a cross bar.

9. The welding device for transformer production according to claim 8, wherein: The cross bar is fixedly connected with the driving rod by welding or by bolts.

Images