Processing technology and processing system for high-voltage mutual inductor shell

Abstract

The invention discloses a high-voltage mutual inductor shell machining process and machining system. The machining system comprises a rotating seat, and a shell and an insulating sleeve are arranged on the rotating seat; the device further comprises a limiting assembly which enables the insulation sleeve to abut against the shell. The device further comprises a positioning assembly and a welding assembly, the positioning assembly drives the welding assembly to abut against the inner wall of the insulation sleeve, and the splicing position of the insulation sleeve and the shell is welded through the welding assembly. The transmission assembly is in transmission connection with the insulation sleeve through the positioning assembly, and the transmission assembly drives the welding assembly to shake and improves the welding seam treatment effect of the welding assembly; according to the device, the driving assembly drives the positioning assembly and the limiting assembly to move, so that the welding assembly is separated from a welding seam or accurately positioned, the transmission assembly and the limiting assembly are separated from or attached to an insulation sleeve, and the device can conveniently conduct high-precision and high-efficiency welding seam welding treatment in the shell; the welded shell is of an integrated structure, and the sealing performance of the shell of the high-voltage transformer is improved.

Description

Technical Field

[0001] The invention relates to the technical field of high-voltage transformer shell production, and in particular to a high-voltage transformer shell processing technology and a processing system. Background Art

[0002] High-voltage transformers are suitable for converting high voltage into low voltage or high current into low current in 1kv to 220kv power systems for measurement, protection and use. They are mainly used to monitor the operation of electrical equipment and control systems in AC circuits. The high-voltage transformer housing is integrally formed by welding to improve the sealing of the transformer.

[0003] For example, the patent with publication number CN105855677A, titled "A welding machine for processing high-voltage transformer housing", and authorization announcement date of August 17, 2016, includes a feeding channel, a first pushing cylinder and a second pushing cylinder. The first pushing cylinder pushes the material, and the second pushing cylinder pushes the material out. The material circulates in the feeding channel. The feeding channel part of the feeding channel is provided with an elastic sheet, and the elastic sheet squeezes the material so that the material is close to the baffle until it reaches the welding station, thereby achieving the purpose of automatic feeding. The oil cooler suspended on the welding machine is stably suspended and connected to the inside of the welding machine to cool the welding machine. It has a stable and rapid cooling effect, improves the continuous operation capacity of the welding machine, greatly improves the processing efficiency of the high-voltage transformer housing, and improves the production efficiency of the enterprise. At the same time, a new type of cooling oil is disclosed, which has sensitive thermal balance ability and super heat conduction ability, thereby ensuring the cooling effect inside the welding machine.

[0004] The shortcoming of the prior art is that since the high-voltage transformer shell is integrally formed by welding to ensure the sealing of the shell, when the existing welding methods are all performed through the outside of the shell, the sealing of the external welding is lower than the sealing of the welding inside the shell. Therefore, how to efficiently weld inside the shell has also become one of the technical problems that need to be urgently solved in this field. Summary of the invention

[0005] The object of the present invention is to provide a high-voltage transformer shell processing technology and processing system, which drives the positioning component and the limit component to move through the driving component, so that the welding component is separated from the weld or accurately positioned, and the transmission component and the limit component are separated from or fitted with the insulating sleeve, so that the device can perform high-precision and high-efficiency weld processing in the shell, so that the shell after welding has an integrated structure and improves the sealing of the high-voltage transformer shell.

[0006] A high-voltage transformer shell processing technology uses an inner seam processing welding method to perform integrated welding and forming on the high-voltage transformer shell. The welding process is divided into part grinding, pressing, and welding. The specific process steps are as follows: Part grinding: carefully grind the welding place between the shell and the insulating sleeve; Pressing: Use stamping equipment to connect the outer shell and the insulating sleeve by extrusion; Welding: Insert the laser head and welding gun into the weld between the outer shell and the inner cavity of the insulating sleeve, cooperate with the limiting component to tightly fit the insulating sleeve and the outer shell on the rotating seat, and use the transmission component to make the welding component complete the welding in a shaking manner, so that the outer shell and the insulating sleeve are welded into an integrated form.

[0007] A high-voltage transformer shell processing system, including a rotating seat, a shell and an insulating sleeve are arranged on the rotating seat; also including a limit assembly, the limit assembly presses the insulating sleeve against the shell; also including a positioning assembly and a welding assembly, the positioning assembly drives the welding assembly to press against the inner wall of the insulating sleeve, and the insulating sleeve and the shell are welded at the joint through the welding assembly; also including a transmission assembly, which is transmission-connected with the insulating sleeve through the positioning assembly, the transmission assembly drives the welding assembly to vibrate, and improves the welding assembly's effect on the weld; also including a driving assembly, the driving assembly synchronously transmission-connects the limit assembly and the positioning assembly, so as to achieve a close fit between the insulating sleeve and the shell by welding and the welding assembly's effect on the weld; As a further description of the above technical solution: The driving assembly comprises a support rod, and a movable sleeve, a movable ring and a push block are slidably provided on the support rod. Linking arms are symmetrically provided at both ends of the push block, and the top ends of the linking arms are respectively fixedly connected to the movable sleeve and the movable ring.

[0008] As a further description of the above technical solution: The push block is symmetrically provided with support arms, one end of the support arm away from the push block is provided with a directional block, and one end of the directional block is provided with a hydraulic pump.

[0009] As a further description of the above technical solution: The positioning assembly includes a support plate, a connecting frame is provided between the two support plates, and the connecting frame is fixed on the support rod, a sliding groove is opened at one end of the support plate, a movable plate is slidably connected in the sliding groove, a connecting rod is fixedly connected between the two movable plates, a sleeve strip is sleeved on the outer side of the connecting rod, one end of the sleeve strip is transmission-connected to a fixed seat, and the fixed seat is fixed on the movable ring.

[0010] As a further description of the above technical solution: The welding assembly comprises a movable block, and limit rods are symmetrically arranged at both ends of the movable block. The limit rods are slidably arranged in limit grooves, and the limit grooves are arranged on the movable plate. The movable block is clamped with a laser head movable block and a welding gun.

[0011] As a further description of the above technical solution: The transmission assembly includes a rotating shaft rod, a supporting shaft seat is sleeved on the outer side of the rotating shaft rod, and the supporting shaft seat is fixed on the movable plate, a friction wheel is fixedly connected to the top end of the rotating shaft rod, an eccentric shaft disk is provided at the bottom end of the rotating shaft rod, a connecting arm is provided at one end of the eccentric shaft disk, and the connecting arm is transmission-connected to the movable block.

[0012] As a further description of the above technical solution: The limit assembly includes a connecting seat, and the connecting seat is fixed on the support rod. Swing arms are symmetrically provided at both ends of the connecting seat. An end of the swing arm away from the connecting seat is rotatably provided with a resistance wheel. A limiting groove is opened in the swing arm. A shift rod is movably provided in the limiting groove, and the shift rod is fixed on the movable sleeve.

[0013] As a further description of the above technical solution: The top of the rotating seat is symmetrically provided with a snap-fit ​​seat, and the snap-fit ​​seat is adapted to the shell, and a slot is provided between the two snap-fit ​​seats.

[0014] The present invention provides a high-voltage transformer housing processing technology and processing system, which have the following beneficial effects: In the present invention, in the welding process steps, the driving assembly drives the positioning assembly and the limiting assembly to move, so that the welding assembly is separated from the weld or accurately positioned, and the transmission assembly and the limiting assembly are separated from or attached to the insulating sleeve, which is convenient for the device to perform high-precision and high-efficiency weld processing in the shell, so that the shell after welding is an integrated structure and the sealing of the high-voltage transformer shell is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of a high-voltage transformer housing processing technology and a processing system proposed by the present invention; Figure 2 It is a structural schematic diagram of the rotating seat in the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the local structure at A in the middle; Figure 4 It is a schematic diagram of the structure of the driving component in the present invention; Figure 5 It is a structural schematic diagram of the linkage arm in the present invention; Figure 6 It is a structural schematic diagram of the positioning component in the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the local structure at B in the middle; Figure 8 It is a structural schematic diagram of the limiting component in the present invention; Fig. 9 It is a structural schematic diagram of the transmission component in the present invention.

[0016] Legend: 1. Rotating seat; 11. Clamping seat; 12. Notch; 2. Housing; 3. Insulating sleeve; 4. Driving assembly; 41. Support rod; 42. Movable ring; 421. Fixed seat; 43. Movable sleeve; 431. Push rod; 44. Linking arm; 45. Push block; 46. Support arm; 47. Orienting block; 48. Hydraulic pump; 5. Positioning assembly; 51. Support plate; 511. Slide groove; 52. Connecting frame; 53. Movable sleeve Moving plate; 531, limiting groove; 54, sliding rod; 55, connecting rod; 551, sleeve strip; 56, supporting shaft seat; 6, limiting assembly; 61, connecting seat; 62, swing arm; 621, limiting groove; 63, resistance wheel; 7, transmission assembly; 71, rotating shaft rod; 72, friction wheel; 73, eccentric shaft disc; 74, connecting arm; 8, welding assembly; 81, movable block; 82, laser head; 83, welding gun; 84, limiting rod. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] Reference Figure 1-9 A high-voltage transformer shell processing technology uses an inner seam processing welding method to perform integrated welding and forming on the high-voltage transformer shell. The welding process is divided into part grinding, pressing, and welding. The specific process steps are as follows: Part grinding: carefully grind the welding place between the shell 2 and the insulating sleeve 3; Pressing: Use a stamping device to connect the outer shell 2 and the insulating sleeve 3 at the welding point by extrusion; Welding: Insert the laser head 82 and the welding gun 83 into the weld in the inner cavity of the outer shell 2 and the insulating sleeve 3, cooperate with the limiting component 6 to tightly fit the insulating sleeve 3 and the outer shell 2 on the rotating seat 1, and use the transmission component 7 to make the welding component 8 complete the welding in a shaking manner, so that the outer shell 2 and the insulating sleeve 3 are welded into an integrated form.

[0019] In order to improve the efficient welding of the laser head 82 and the welding gun 83 in the inner cavity of the shell, the present invention also provides a structure for clamping the stability of the shell during welding, accurately positioning the weld structure, and shaking the welding structure. A high-voltage transformer shell processing system is used to realize the detailed structure of welding in the above-mentioned welding process steps, specifically, including a rotating seat 1, a shell 2 and an insulating sleeve 3 are provided on the rotating seat 1; it also includes a limit assembly 6, and the limit assembly 6 presses the insulating sleeve 3 against the shell 2; it also includes a positioning assembly 5 and a welding assembly 8, the positioning assembly 5 drives the welding assembly 8 to abut the inner wall of the insulating sleeve 3, and the insulating sleeve 3 and the shell 2 are welded at the joint through the welding assembly 8; it also includes a transmission assembly 7, which is connected to the insulating sleeve 3 through the positioning assembly 5, and the transmission assembly 7 drives the welding assembly 8 to shake, and improves the welding assembly 8 The processing effect of the weld seam; it also includes a driving assembly 4, the driving assembly 4 synchronously drives and connects the limiting assembly 6 and the positioning assembly 5, so as to achieve a tight fit between the insulating sleeve 3 and the shell 2 and the welding assembly 8. Specifically, the rotating seat 1 drives the shell 2 and the insulating sleeve 3 to rotate. Under the drive of the driving component 4, the limiting component 6 presses the insulating sleeve 3 against the shell 2, so that the insulating sleeve 3 is more stably and tightly fitted with the shell 2. The welding component 8 and the transmission component 7 in the positioning component 5 move to the weld and fit the insulating sleeve 3 respectively, and are connected to the insulating sleeve 3 through the transmission component 7. Under the rotation of the rotating seat 1, the welding component 8 is driven to reciprocate horizontally, so that the welding component 8 improves the welding effect of the weld in a small vibration manner. On the contrary, the driving component 4 drives the positioning component 5 and the limiting component 6 to contract, so that the welding component 8 is separated from the weld and the transmission component 7 is separated from the insulating sleeve 3, and the limiting component 6 is separated from the insulating sleeve 3, which is convenient for the insulating sleeve 3 to be removed from the shell 2. After welding, the insulating sleeve 3 and the shell 2 are integrated, thereby improving the sealing effect of the high-voltage transformer housing. The driving assembly 4 includes a support rod 41, and the support rod 41 is slidably provided with a movable sleeve 43, a movable ring 42 and a push block 45. Linking arms 44 are symmetrically provided at both ends of the push block 45, and the top ends of the linking arms 44 are respectively fixedly connected to the movable sleeve 43 and the movable ring 42; the push block 45 is symmetrically provided with support arms 46, and an end of the support arm 46 away from the push block 45 is provided with a directional block 47, and one end of the directional block 47 is provided with a hydraulic pump 48; Specifically, the support rod 41 in the driving assembly 4 passes through the notch 12 provided on the rotating disk, and the support rod 41 is movably connected with a movable sleeve 43, a movable ring 42, and a push block 45, and the movable sleeve 43, the movable ring 42, and the push block 45 are connected by a linkage arm 44. When the hydraulic pump 48 drives the directional block 47 to move laterally, the directional block 47 drives the connected support arm 46 and the push block 45 to move in a directional manner along the support rod 41, so that the movable sleeve 43 drives the limiting assembly 6 to unfold, and the movable ring 42 drives the welding assembly 8 in the positioning assembly 5 to fit the weld seam, and the transmission assembly 7 fits the insulating sleeve 3 and accurately positions the welding assembly 8 and the weld seam. The positioning assembly 5 includes a support plate 51, a connecting frame 52 is provided between the two support plates 51, and the connecting frame 52 is fixed on the support rod 41, a slide groove 511 is provided at one end of the support plate 51, a movable plate 53 is slidably connected in the slide groove 511, a connecting rod 55 is fixedly connected between the two movable plates 53, a sleeve strip 551 is sleeved on the outer side of the connecting rod 55, one end of the sleeve strip 551 is drivingly connected to a fixed seat 421, and the fixed seat 421 is fixed on the movable ring 42; Specifically, the support plate 51 in the positioning assembly 5 is used to support the lateral movement of the movable plate 53, and the support plate 51 does not contact the inner wall of the housing 2. When the linkage arm 44 drives the movable ring 42 to move upward along the support rod 41, the fixed seat 421 fixedly connected to the movable ring 42 pushes the movable plate 53 to move through the sleeve strip 551, and the slide rod 54 fixedly connected to the movable plate 53 is adapted to the slide groove 511 provided on the support plate 51, so that the movable plate 53 can move horizontally along the sliding lateral direction, and the transmission assembly 7 and the welding assembly 8 arranged in the movable plate 53 move, so that the transmission assembly 7 fits the inner wall of the insulating sleeve 3, and the welding assembly 8 is limited by the transmission assembly 7 and moves accurately to the welding seam, thereby improving the high precision of the device during welding; The welding assembly 8 includes a movable block, and limit rods 84 are symmetrically provided at both ends of the movable block 81. The limit rods 84 are slidably arranged in the limit grooves 531, and the limit grooves 531 are provided on the movable plate 53. The movable block 81 is clamped with a laser head 82 and a welding gun 83; the transmission assembly 7 includes a rotating shaft rod 71, and a support shaft seat 56 is sleeved on the outer side of the rotating shaft rod 71, and the support shaft seat 56 is fixed on the movable plate 53. The top end of the rotating shaft rod 71 is fixedly connected to a friction wheel 72, and the bottom end of the rotating shaft rod 71 is provided with an eccentric shaft disc 73, and one end of the eccentric shaft disc 73 is provided with a connecting arm 74, and the connecting arm 74 is transmission-connected to the movable block; Specifically, the welding assembly 8 performs welding processing on the weld by means of a laser head 82 and a welding gun 83 (the welding structure belongs to the prior art and will not be described in detail). The rotating shaft rod 71 in the transmission assembly 7 is used for transmission, and the friction wheel 72 fixedly connected to the top of the rotating shaft rod 71 is fitted with the inner wall of the insulating sleeve 3. When the rotating seat 1 drives the outer shell 2 and the insulating sleeve 3 to rotate, the friction wheel 72 drives the eccentric shaft disc 73 to rotate through the rotating shaft rod 71, and the eccentric shaft disc 73 drives the movable block to reciprocate horizontally through the connecting arm 74. The limit rod 84 fixedly connected to the movable block is used to limit the moving direction of the movable block, so that the laser head 81 movable block 82 and the welding gun 83 shake at the weld, so as to improve the effect of the weld. The limiting assembly 6 includes a connecting seat 61, and the connecting seat 61 is fixed on the supporting rod 41, and swing arms 62 are symmetrically arranged at both ends of the connecting seat 61, and a resistance wheel 63 is rotatably arranged at one end of the swing arm 62 away from the connecting seat 61, and a limiting groove 621 is opened in the swing arm 62, and a lever 431 is movably arranged in the limiting groove 621, and the lever 431 is fixed on the movable sleeve 43; the top of the rotating seat 1 is symmetrically provided with a snap-fit ​​seat 11, and the snap-fit ​​seat 11 is adapted to the housing 2, and a notch 12 is opened between the two snap-fit ​​seats 11; Specifically, the movable sleeve 43 drives the lever 431 to move in a directional manner, so that the lever 431 moves the slidingly connected swing arm 62 along the connection with the connecting seat 61, so that the swing arm 62 drives the contact wheel 63 to open and close, so that when the contact wheel 63 is welded between the outer shell 2 and the insulating sleeve 3, the contact wheel 63 presses the insulating sleeve 3 against the outer shell 2, thereby improving the stability of the insulating sleeve 3 and the outer shell 2 and reducing the phenomenon of cracks during the welding process.

[0020] Working principle: the rotating seat 1 drives the outer shell 2 and the insulating sleeve 3 to rotate. Under the drive of the driving component 4, the limiting component 6 presses the insulating sleeve 3 against the outer shell 2, so that the insulating sleeve 3 can fit closely with the outer shell 2 more stably. The welding component 8 and the transmission component 7 in the positioning component 5 move to the weld and fit the insulating sleeve 3 respectively, and are connected to the insulating sleeve 3 through the transmission component 7. When the rotating seat 1 rotates, the welding component 8 is driven to reciprocate horizontally, so that the welding component 8 can improve the welding effect of the weld with a small vibration. On the contrary, the driving component 4 drives the positioning component 5 and the limiting component 6 to contract, so that the welding component 8 is separated from the weld and the transmission component 7 is separated from the insulating sleeve 3. The limiting component 6 is separated from the insulating sleeve 3, which is convenient for the insulating sleeve 3 to be removed from the outer shell 2. After welding, the insulating sleeve 3 and the outer shell 2 are integrated into a structure, which improves the sealing effect of the high-voltage transformer housing.

[0021] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high voltage transformer housing processing technology, characterized in that: The high-voltage transformer housing is welded and formed in one piece by means of internal seam processing welding. The welding process is divided into part grinding, pressing and welding. The specific process steps are as follows: Part grinding: carefully grind the welding point between the outer shell (2) and the insulating sleeve (3); Pressing: Using a stamping device to connect the outer shell (2) and the insulating sleeve (3) at the welding point by extrusion; Welding: The laser head (82) and the welding gun (83) are inserted into the weld in the inner cavity of the outer shell (2) and the insulating sleeve (3), and the insulating sleeve (3) and the outer shell (2) are tightly attached to the rotating seat (1) by cooperating with the limiting component (6). The welding component (8) is made to complete the welding in a shaking manner through the transmission component (7), so that the outer shell (2) and the insulating sleeve (3) are welded and formed as an integrated whole.

2. A high-voltage transformer housing processing system, used to implement the high-voltage transformer housing processing technology in claim 1, characterized in that: It comprises a rotating seat (1), on which a housing (2) and an insulating sleeve (3) are provided; It also includes a limiting component (6), wherein the limiting component (6) presses the insulating sleeve (3) against the outer shell (2); It also includes a positioning component (5) and a welding component (8), wherein the positioning component (5) drives the welding component (8) to abut against the inner wall of the insulating sleeve (3), and the insulating sleeve (3) and the outer shell (2) are welded at the joint through the welding component (8); It also includes a transmission component (7) which is in transmission connection with the insulating sleeve (3) via the positioning component (5), wherein the transmission component (7) drives the welding component (8) to vibrate and improves the welding seam processing effect of the welding component (8); It also includes a driving component (4), wherein the driving component (4) synchronously drives and connects the limiting component (6) and the positioning component (5), thereby achieving a close welding fit between the insulating sleeve (3) and the outer shell (2) and a welding seam treatment effect by the welding component (8).

3. A high voltage transformer housing processing system according to claim 2, characterized in that: The driving assembly (4) comprises a support rod (41), the support rod (41) being slidably provided with a movable sleeve (43), a movable ring (42) and a push block (45), and linkage arms (44) being symmetrically provided at both ends of the push block (45), and the top ends of the linkage arms (44) are respectively fixedly connected to the movable sleeve (43) and the movable ring (42).

4. A high voltage transformer housing processing system according to claim 3, characterized in that: The push block (45) is symmetrically provided with a support arm (46); an end of the support arm (46) away from the push block (45) is provided with a directional block (47); and one end of the directional block (47) is provided with a hydraulic pump (48).

5. A high voltage transformer housing processing system according to claim 2, characterized in that: The positioning assembly (5) comprises a support plate (51), a connecting frame (52) is provided between the two support plates (51), and the connecting frame (52) is fixed on the support rod (41), a sliding groove (511) is provided at one end of the support plate (51), a movable plate (53) is slidably connected in the sliding groove (511), a connecting rod (55) is fixedly connected between the two movable plates (53), a sleeve strip (551) is sleeved on the outer side of the connecting rod (55), one end of the sleeve strip (551) is drivingly connected to a fixed seat (421), and the fixed seat (421) is fixed on the movable ring (42).

6. A high voltage transformer housing processing system according to claim 2, characterized in that: The welding assembly (8) comprises a movable block (81), and limit rods (84) are symmetrically provided at both ends of the movable block (81). The limit rods (84) are slidably arranged in limit grooves (531), and the limit grooves (531) are provided on the movable plate (53). A laser head (82) and a welding gun (83) are clamped in the movable block (81).

7. A high voltage transformer housing processing system according to claim 2, characterized in that: The transmission assembly (7) comprises a rotating shaft rod (71), the outer side of the rotating shaft rod (71) is sleeved with a supporting shaft seat (56), and the supporting shaft seat (56) is fixed on the movable plate (53), the top end of the rotating shaft rod (71) is fixedly connected to a friction wheel (72), the bottom end of the rotating shaft rod (71) is provided with an eccentric shaft disc (73), one end of the eccentric shaft disc (73) is provided with a connecting arm (74), and the connecting arm (74) is transmission-connected to the movable block.

8. A high voltage transformer housing processing system according to claim 2, characterized in that: The limit assembly (6) comprises a connecting seat (61), and the connecting seat (61) is fixed on the support rod (41), swing arms (62) are symmetrically provided at both ends of the connecting seat (61), and a resistance wheel (63) is rotatably provided at one end of the swing arm (62) away from the connecting seat (61), a limiting groove (621) is provided in the swing arm (62), a shifting rod (431) is movably provided in the limiting groove (621), and the shifting rod (431) is fixed on the movable sleeve (43).

9. A high voltage transformer housing processing system according to claim 1, characterized in that: The top of the rotating seat (1) is symmetrically provided with a snap-fit ​​seat (11), and the snap-fit ​​seat (11) is adapted to the housing (2), and a notch (12) is provided between the two snap-fit ​​seats (11).

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