Bending device for transformer insulating plate

Abstract

The utility model relates to the technical field of insulating plate processing, in particular to a bending device of a transformer insulating plate, which comprises a working table, two supporting assemblies, a bending assembly and a positioning assembly, the working table is provided with an opening for the insulating plate to pass through, the supporting assemblies are symmetrically arranged, and the supporting assemblies are connected to the working table; the bending assembly is connected to the workbench, and the positioning assembly is connected to the workbench. According to the utility model, the symmetrically arranged supporting assemblies can synchronously move in opposite or opposite directions, the distance between the symmetrical assemblies changes to adapt to insulating plates with different lengths, the insulating plates can be bent to form a larger or smaller angle when the symmetrical assemblies move downwards for the same distance, and different positions of the insulating plates are in contact with the bending assembly when the positioning assembly is used. Therefore, the bending assembly can conduct bending operation on different positions of the insulating plate, meanwhile, the positioning assembly can provide positioning and reference for bending of the insulating plate, and the problem that the bending portion is inaccurate is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of insulating plate processing, in particular to a bending device for an insulating plate of a transformer. Background Art

[0002] Transformer insulation board, also known as insulating rubber pad, insulating pad or insulating spacer, is an important component inside and outside the transformer used to isolate electrical components and prevent electrical interference and leakage.

[0003] After searching, Chinese patent announcement number CN215434984U discloses an adjustable bending device for processing epoxy resin insulation board, including two vertical and parallel slats, U-shaped frames are fixed on both sides of the two slats, a pressure roller is vertically slidably arranged between the two slats, and limiting rollers are arranged on both sides of the pressure roller. The limiting roller is horizontally slidably arranged on the frame, and both ends of the pressure roller and the limiting roller are rotatably connected with sliders; a top plate is fixed at the upper end of the slat, and a driving hydraulic cylinder for driving the pressure roller is fixedly installed at the lower end of the top plate. The utility model can cooperate with the pressure roller by setting an adjustable limiting roller, and achieve different bending effects on the insulation board by adjusting the position of the insulation board. Under the action of the fixed rod and the connecting rod, the limiting roller can be adjusted by using a triangular structure, which has higher stability, and under the action of the connecting rod, the two fixed rods can move synchronously to ensure that the moving range of the two limiting rollers is consistent.

[0004] However, in the above technical solution, the fixed rod and the connecting rod are driven to move synchronously through the action of the hydraulic adjusting cylinder, thereby changing the position of the connecting rod and the limiting roller. However, this patent can only adjust the two limiting rollers at the same time when in use, which is convenient for bending the plate at the center position. When some insulating plates need to be bent at their eccentric positions, the position of the plates needs to be manually adjusted to make the plates in the appropriate position. Utility Model Content

[0005] The utility model aims to solve the problems existing in the background technology and proposes a bending device for a transformer insulating plate.

[0006] The technical solution of the utility model is as follows: a bending device for an insulating plate of a transformer comprises a workbench, on which an opening for the insulating plate to pass is opened; two supporting components are symmetrically arranged, and the supporting components are connected to the workbench; when the supporting components are in use, the spacing between the supporting components changes to change the bending angle of the insulating plate; a bending component is connected to the workbench; when the bending component is in use, the bending component pushes the insulating plate to cooperate with the supporting component to bend the insulating plate; a positioning component is connected to the workbench; when the positioning component is in use, the positioning component drives the insulating plate to move horizontally to adjust its bending position.

[0007] Preferably, the bending assembly includes a support frame, which is connected to the workbench; two first telescopic devices are symmetrically arranged and connected to the support frame; moving blocks, whose number corresponds to the first telescopic devices, and the moving blocks are connected to the telescopic ends of the first telescopic devices; a pressure roller, whose two ends are rotatably connected to the moving blocks; an auxiliary assembly, which is connected to the workbench; when the auxiliary assembly is in use, the auxiliary assembly is pressed down by the pressure roller and moves in the vertical direction to contact the insulating plate.

[0008] Preferably, the auxiliary component includes a heating roller, which is arranged parallel to the pressure roller, and both ends of the heating roller are connected to a fixed block; a fixed frame, which is connected to the workbench; a multi-stage telescopic rod, which is connected to the fixed frame, and the telescopic end of the multi-stage telescopic rod is connected to the fixed block; an elastic member, which is sleeved on the outside of the multi-stage telescopic rod, and both ends of the elastic member are respectively connected to the fixed block and the fixed frame.

[0009] Preferably, the support assembly includes a connecting frame connected to the workbench; a second telescopic device rotatably connected to the workbench; a support roller connected to the telescopic end of the second telescopic device; a sliding block connected to both ends of the support roller, and the sliding block is slidably connected to a sliding groove opened on the workbench.

[0010] Preferably, the positioning assembly includes a threaded rod, two of which are arranged side by side, the threaded rods are rotatably connected to a receiving groove opened on the workbench, and one end of any threaded rod passes through the receiving groove and is connected to an adjustment handle; a sliding seat, which is threadedly connected to the threaded rod; a support plate, which is connected to the sliding seat, and support blocks are connected to the opposite sides of both ends of the two support plates; a stopper, which is connected to the support block; a transmission assembly, which is connected to the threaded rod; when the transmission assembly is in use, the transmission assembly drives the other threaded rod to rotate synchronously when one threaded rod rotates.

[0011] Preferably, the transmission assembly includes synchronous pulleys, the number of which corresponds to the threaded rod, and the synchronous pulleys are connected to the end of the threaded rod away from the workbench; a synchronous toothed belt, which is sleeved on the synchronous pulleys and meshes with the synchronous pulleys.

[0012] Preferably, the support plate is composed of two symmetrically arranged rods, and a receiving cavity is opened on the opposite sides of the two rods. The receiving cavity on any one of the rods is connected to a third telescopic device, and the telescopic end of the third telescopic device is connected to the other rod.

[0013] Preferably, a scale is connected to the side wall of the support plate.

[0014] Compared with the prior art, the above technical solution of the utility model has the following beneficial technical effects:

[0015] In the utility model, symmetrically arranged support components can move synchronously in opposite directions or in opposite directions, and the spacing between the symmetrical components changes to accommodate insulating boards of different lengths. At the same time, the change in the spacing between the symmetrical components can also shorten the downward movement distance of the bending component, and the insulating board can be bent to a larger or smaller angle when moving down the same distance. The telescopic end of the bending component will move and push the insulating board toward the workbench when in use, and the insulating board and the support component will cooperate with each other to bend the insulating board. The positioning component can drive the insulating board in a horizontal direction along the workbench. When positioning the component, different positions of the insulating board contact the bending component, so that the bending component can bend different positions of the insulating board. At the same time, the positioning component can provide positioning and reference for the bending of the insulating board to avoid the problem of inaccurate bending position. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 for Figure 1 A cross-sectional schematic diagram of

[0018] Figure 3 for Figure 2 A magnified view of the structure at A;

[0019] Figure 4 for Figure 2 Enlarged view of the structure at B.

[0020] Figure numerals: 1. workbench; 2. support frame; 3. first telescopic device; 4. moving block; 5. pressure roller; 6. heating roller; 7. fixed frame; 8. multi-stage telescopic rod; 9. elastic member; 10. connecting frame; 11. second telescopic device; 12. support roller; 13. sliding block; 14. threaded rod; 15. adjusting handle; 16. sliding seat; 17. support plate; 18. support block; 19. stop block; 20. synchronous pulley; 21. synchronous toothed belt; 22. rod body; 23. third telescopic device; 24. ruler. DETAILED DESCRIPTION

[0021] Embodiment 1

[0022] like Figure 1-Figure 4As shown, the utility model proposes a bending device for a transformer insulating plate, comprising a workbench 1, a supporting assembly, a bending assembly and a positioning assembly, wherein an opening for the insulating plate to pass through is provided on the workbench 1; after the opening is provided on the workbench 1, the shape of the bending device is a frame; two supporting assemblies are symmetrically arranged, and the supporting assemblies are connected to the workbench 1; when the supporting assemblies are in use, the symmetrically arranged supporting assemblies can move synchronously in opposite directions, and the spacing between the symmetrical assemblies changes to adapt to insulating plates of different lengths. At the same time, the change in the spacing between the symmetrical assemblies can also shorten the downward movement distance of the bending assembly, and the insulating plate can be bent to a larger or smaller angle when moving down the same distance; the bending assembly is connected to the workbench 1; when the bending assembly is in use, the telescopic end of the bending assembly will move and push the insulating plate toward the workbench 1, and the insulating plate and the supporting assembly cooperate with each other to bend the insulating plate; a positioning assembly, which is connected to the workbench 1; when the positioning assembly is in use, the positioning assembly drives the insulating plate to move horizontally to adjust its bending position.

[0023] Embodiment 2

[0024] like Figure 2 As shown, the utility model proposes a bending device for a transformer insulating plate. Compared with the first embodiment, the present embodiment records the detailed structure of the bending assembly, which includes a support frame 2, a first telescopic device 3, a moving block 4, a pressure roller 5 and an auxiliary assembly. The support frame 2 is connected to the workbench 1, and two first telescopic devices 3 are symmetrically arranged, and the first telescopic devices 3 are connected to the lower end surface of the support frame 2; the first telescopic device 3 is selected from but not limited to a hydraulic cylinder; the number of moving blocks 4 corresponds to that of the first telescopic device 3, and the moving block 4 is connected to the telescopic end of the first telescopic device 3, and both ends of the pressure roller 5 are rotatably connected to the bearings of the moving block 4, and the auxiliary assembly is connected to the lower end surface of the workbench 1; when the auxiliary assembly is in use, the auxiliary assembly is pressed down by the pressure roller 5 and moves in a vertical direction to contact the insulating plate;

[0025] The auxiliary components include a heating roller 6, a fixing frame 7, a multi-stage telescopic rod 8 and an elastic member 9. The heating roller 6 and the pressure roller 5 are arranged in parallel up and down. Both ends of the heating roller 6 are connected with fixed blocks. The fixing frame 7 is connected to the middle position of the lower end surface of the workbench 1. The multi-stage telescopic rod 8 is connected to the fixing frame 7. The telescopic end of the multi-stage telescopic rod 8 is connected to the fixed block. The elastic member 9 is sleeved on the outside of the multi-stage telescopic rod 8. The two ends of the elastic member 9 are respectively connected to the fixed block and the fixing frame 7; the elastic member 9 is a spring.

[0026] Embodiment 3

[0027] like Figure 1-Figure 2As shown, the utility model proposes a bending device for a transformer insulating plate. Compared with the second embodiment, the detailed structure of the support assembly is recorded in this embodiment. The support assembly includes a connecting frame 10, a second telescopic device 11, a support roller 12 and a sliding block 13. The connecting frame 10 is connected to the lower end surface of the workbench 1; the second telescopic device 11 is hingedly connected to the connecting frame 10, and the support roller 12 is connected to the telescopic end of the second telescopic device 11; the second telescopic device 11 is selected from but not limited to a hydraulic cylinder; the cylindrical sliding block 13 is connected to both ends of the support roller 12, and the sliding block 13 is slidably connected to the sliding groove opened on the workbench 1.

[0028] Embodiment 4

[0029] like Figure 2-Figure 4 As shown, a bending device for a transformer insulating plate proposed by the utility model, compared with the third embodiment, the detailed structure of the positioning assembly is recorded in this embodiment, the positioning assembly includes a threaded rod 14, an adjustment handle 15, a sliding seat 16, a support plate 17, a stopper 19 and a transmission assembly, two threaded rods 14 are arranged side by side, the threaded rods 14 are rotatably connected to the receiving grooves opened on the upper end surface of the workbench 1, one end of any threaded rod 14 passes through the receiving groove and is connected to the adjustment handle 15; the other threaded rod 14 passes through the receiving groove and is connected to the transmission, and the sliding seat 16 is threadedly connected to the threaded rod 14, a sliding seat 16 is slidably connected to the inner wall of the accommodating groove, a support plate 17 is connected to the sliding seat 16, and support blocks 18 are connected to the opposite sides of the two support plates 17 at both ends; after the support block 18 is connected to the support plate 17, its shape is "]" or "[" shape; a stopper 19 is connected to the support block 18; the stopper 19 is used to support the insulating plate to prevent it from falling, and will not affect the bending of the insulating plate; the transmission assembly is connected to the threaded rod 14; when the transmission assembly is in use, the transmission assembly drives the other threaded rod 14 to rotate synchronously in the same direction when one threaded rod 14 rotates;

[0030] The transmission assembly includes a synchronous pulley 20 and a synchronous toothed belt 21. The number of the synchronous pulleys 20 corresponds to the threaded rod 14. The synchronous pulley 20 is connected to the end of the threaded rod 14 away from the workbench 1. The synchronous toothed belt 21 is sleeved on the synchronous pulley 20, and the synchronous toothed belt 21 is meshed with the synchronous pulley 20.

[0031] In an optional embodiment, the support plate 17 is composed of two symmetrically arranged rod bodies 22, and the two rod bodies 22 have a receiving cavity on the opposite side. A third telescopic device 23 is connected to the receiving cavity on any one of the rod bodies 22, and the telescopic end of the third telescopic device 23 is connected to the other rod body 22; the third telescopic device 23 is selected from but not limited to an electric gas rod;

[0032] In an optional embodiment, a scale 24 is connected to the side wall of the support plate 17; when the support plate 17 adjusts its own length, the current increased length of the rod body 22 can be observed through the scale 24, providing a reference for adjusting the length.

[0033] In summary, when the utility model is used, the staff prevents the insulating plate to be bent from being above the support plate 17, controls the movement of the telescopic end of the third telescopic device 23 according to the length of the insulating plate, changes the length of the support plate 17 formed by the two rod bodies 22, so that the support block 18 and the stopper 19 limit the four corners at both ends of the insulating plate, and when it is necessary to bend the insulating plate at different positions, such as the center position or the eccentric position, rotate the adjustment handle 15 to drive the threaded rod 14 to rotate, and the sliding seat 16 moves along the central axis of the threaded rod 14 to drive the support plate 17 and the insulating plate above the support plate 17 to move, and move the insulating plate with the time mark to the pressure roller 5 and the heating roller 5. The first telescopic device 3 is in the middle of the roller 6. At this time, the lower end surface of the insulating plate is in contact with the two supporting rollers 12. When the first telescopic device 3 is started, the telescopic end of the first telescopic device 3 extends out to drive the moving block 4 and the pressure roller 5 to move down and fit with the upper end surface of the insulating plate. At the same time, the heating roller 6 fits with the lower end surface of the insulating plate. Both the pressure roller 5 and the heating roller 6 can heat the insulating plate. After heating to a predetermined temperature, the output end of the first telescopic device 3 moves downward, and the insulating plate is bent through the cooperation of the supporting roller 12 and the pressure roller 5. When the pressure roller 5 moves downward, the heating roller 6 will be pushed through the insulating plate to compress the length of the elastic member 9 and the multi-stage telescopic rod 8. After the bending is completed, the heating roller 6 will automatically rebound through the elastic member 9.

[0034] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A bending device for a transformer insulating plate, characterized in that: include A workbench (1) is provided with an opening for the insulating plate to pass through; Two support assemblies are symmetrically arranged and connected to a workbench (1); when the support assemblies are in use, the spacing between the support assemblies changes to change the bending angle of the insulating plate; A bending assembly connected to the workbench (1); when the bending assembly is in use, the bending assembly pushes the insulating plate and cooperates with the supporting assembly to bend the insulating plate; A positioning component is connected to a workbench (1); when the positioning component is in use, the positioning component drives the insulating plate to move horizontally to adjust its bending position.

2. The bending device for transformer insulating plate according to claim 1, characterized in that: Bending components include A support frame (2) connected to the workbench (1); Two first telescopic devices (3) are symmetrically arranged, and the first telescopic devices (3) are connected to the support frame (2); Moving blocks (4), the number of which corresponds to the number of the first telescopic devices (3), and the moving blocks (4) are connected to the telescopic ends of the first telescopic devices (3); A pressure roller (5), both ends of which are rotatably connected to the moving block (4); The auxiliary component is connected to the workbench (1); when the auxiliary component is in use, the auxiliary component is pressed down by the pressure roller (5) and moves in a vertical direction to contact the insulating plate.

3. The bending device for transformer insulating plate according to claim 2, characterized in that: Auxiliary components include A heating roller (6) is arranged in parallel with the pressure roller (5), and both ends of the heating roller (6) are connected with fixing blocks; A fixed frame (7) connected to the workbench (1); A multi-stage telescopic rod (8) is connected to the fixed frame (7), and the telescopic end of the multi-stage telescopic rod (8) is connected to the fixed block; The elastic member (9) is sleeved on the outside of the multi-stage telescopic rod (8), and the two ends of the elastic member (9) are respectively connected to the fixed block and the fixed frame (7).

4. The bending device for transformer insulating plate according to claim 1, characterized in that: Support components include A connecting frame (10) connected to the workbench (1); A second telescopic device (11) rotatably connected to the workbench (1); A supporting roller (12) connected to the telescopic end of the second telescopic device (11); The sliding block (13) is connected to the two ends of the supporting roller (12), and the sliding block (13) is slidably connected to the sliding groove provided on the workbench (1).

5. The bending device for transformer insulating plate according to claim 1, characterized in that: Positioning components include Two threaded rods (14) are arranged side by side. The threaded rods (14) are rotatably connected to a receiving groove provided on the workbench (1). One end of any threaded rod (14) passes through the receiving groove and is connected to an adjustment handle (15); A sliding seat (16) threadedly connected to the threaded rod (14); A support plate (17) connected to the sliding seat (16), with support blocks (18) connected to both ends of the two support plates (17) on one side facing each other; A stopper (19) connected to the support block (18); The transmission assembly is connected to the threaded rod (14); when the transmission assembly is in use, when one threaded rod (14) rotates, the transmission assembly drives the other threaded rod (14) to rotate synchronously.

6. The bending device for transformer insulating plate according to claim 5, characterized in that: Transmission components include Synchronous pulleys (20), the number of which corresponds to the number of threaded rods (14), and the synchronous pulleys (20) are connected to the end of the threaded rod (14) away from the workbench (1); The synchronous toothed belt (21) is sleeved on the synchronous belt wheel (20), and the synchronous toothed belt (21) is meshed with the synchronous belt wheel (20).

7. The bending device for transformer insulating plate according to claim 5, characterized in that: The support plate (17) is composed of two symmetrically arranged rod bodies (22). The two rod bodies (22) are provided with accommodating cavities on opposite sides. A third telescopic device (23) is connected to the accommodating cavity on any one of the rod bodies (22). The telescopic end of the third telescopic device (23) is connected to the other rod body (22).

8. The bending device for transformer insulating plate according to claim 7, characterized in that: A scale (24) is connected to the side wall of the support plate (17).

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