Current transformer press-fitting equipment

Abstract

The utility model discloses a current transformer press-fitting device which comprises a working table, a clamping assembly is arranged on the top of the working table, a support is fixedly connected to the top of the working table, a bidirectional electric telescopic rod is arranged on the support, a pressing plate is fixedly connected to the bottom of the bidirectional electric telescopic rod, and the pressing plate is fixedly connected to the top of the working table. The two ends of the bidirectional electric telescopic rod are fixedly connected with telescopic rods, and the other ends of the two telescopic rods are fixedly connected with fixing plates. Through cooperative use of the fixing plate, the placing plate, the first square telescopic rod, the connecting rods, the screwing grooves, the limiting discs, the sliding grooves, the bidirectional threaded rods and other structures, the positions of the four connecting rods and the four screwing grooves can be correspondingly adjusted according to the installation positions of screws at the four corners of the current transformer to be pressed; and the device can screw the screws on the current transformers of different sizes, the fixing efficiency of the current transformers after press fitting is improved, and meanwhile the applicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of current transformers, in particular to a current transformer press-fitting device. Background Art

[0002] The bundled shell type current transformer comprises two mutually matched rectangular shells. The two rectangular shells are matched with each other, and fixing holes are opened at four right angles of the rectangular shells. Screws are passed through the fixing holes to fix the mutually matched rectangular shells.

[0003] At present, after the current transformer is press-fitted using a press-fitting device, it is necessary to use screws to fix the pressed current transformer from the four corners. Although some press-fitting devices are provided with a screw tightening mechanism to directly tighten the screws at the four corners (such as the Chinese utility model patent with application number: 202020829141.9, which discloses a shell-type current transformer press-fitting tool), most screw tightening mechanisms have a relatively fixed structure and can only be used for current transformers of the same model, which has certain limitations.

[0004] Therefore, it is necessary to provide a current transformer press-fitting device to solve the above technical problems. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and provides a current transformer pressing device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a current transformer pressing device, comprising a workbench, a clamping assembly is arranged on the top of the workbench, a bracket is fixedly connected to the top of the workbench, the bracket is U-shaped, a bidirectional electric telescopic rod is arranged on the bracket, a pressing plate is fixedly connected to the bottom of the bidirectional electric telescopic rod, both ends of the bidirectional electric telescopic rod are fixedly connected to the telescopic rod, the other ends of the two telescopic rods are fixedly connected to the fixing plate, a screwing assembly is arranged on the side where the two fixing plates are separated, the screwing assembly comprises two placement plates, the two placement plates are slidably connected to one side of one of the fixing plates through a slide groove, a bidirectional threaded rod is arranged inside the slide groove, the bidirectional threaded rod is threadedly connected to the two placement plates, a square telescopic rod 1 is rotatably connected to the top of the two fixing plates, two worms and a bevel gear 1 are fixedly arranged on the outer surface of the square telescopic rod 1, connecting rods are rotatably connected to the two placement plates, worm gears are fixedly sleeved on the outer surfaces of the two connecting rods, screwing grooves are arranged at the bottoms of the two connecting rods, and a driving assembly and a connecting assembly are arranged on the bracket.

[0007] As a further description of the above technical solution:

[0008] The outer surface of the telescopic rod is sleeved with a spring, and the two worms are respectively meshed with two worm wheels.

[0009] As a further description of the above technical solution:

[0010] A driving motor is arranged on one of the placement plates, and an output end of the driving motor is fixedly connected to one end of one of the square telescopic rods.

[0011] As a further description of the above technical solution:

[0012] The clamping assembly comprises two electric telescopic rods fixedly connected to the top of the workbench, the telescopic ends of the two electric telescopic rods are fixedly connected to the clamping plate, and the two electric telescopic rods are symmetrically arranged.

[0013] As a further description of the above technical solution:

[0014] The driving assembly comprises a cylinder fixedly mounted on the top of the bracket, and the telescopic end of the cylinder is fixedly connected to the bidirectional electric telescopic rod.

[0015] As a further description of the above technical solution:

[0016] The connecting assembly includes a square telescopic rod 2, which is rotatably connected to two of the placement plates. The outer surface of the square telescopic rod 2 is fixedly sleeved with two bevel gears 2 and two limit plates. The two bevel gears 2 and the two limit plates are symmetrically arranged on the square telescopic rod 2.

[0017] As a further description of the above technical solution:

[0018] The two bevel gears 1 are respectively meshed with the two bevel gears 2, and the two limit plates are respectively rotatably connected with the two placement plates.

[0019] The utility model has the following beneficial effects:

[0020] Compared with the prior art, the current transformer pressing equipment, through the coordinated use of structures such as a fixing plate, a placing plate, a square telescopic rod, a connecting rod, a screw groove, a limit plate, a slide groove and a bidirectional threaded rod, can adjust the positions of the four connecting rods and the four screw grooves accordingly according to the installation positions of the screws at the four corners of the current transformer to be pressed, so that the device can screw the screws on current transformers of different sizes, thereby improving the fixing efficiency of the current transformer after pressing and improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a current transformer press-fitting device proposed by the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of a limit plate and a spring of a current transformer press-fitting device proposed by the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of a worm gear and a worm etc. of a current transformer press-fitting device proposed by the utility model;

[0024] Figure 4 The utility model discloses a schematic diagram of the structure of a connecting rod and a screwing groove of a current transformer press-fitting device.

[0025] Legend:

[0026] 1. Workbench; 2. Bracket; 3. Two-way electric telescopic rod; 4. Press plate; 5. Telescopic rod; 6. Fixing plate; 7. Placement plate; 8. Square telescopic rod 1; 9. Worm; 10. Bevel gear 1; 11. Connecting rod; 12. Worm gear; 13. Screw groove; 14. Spring; 15. Drive motor; 16. Electric telescopic rod; 17. Clamping plate; 18. Cylinder; 19. Square telescopic rod 2; 20. Bevel gear 2; 21. Limiting plate; 22. Slide groove; 23. Two-way threaded rod. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Reference Figure 1-4The utility model provides a current transformer pressing device: it includes a workbench 1, a clamping assembly is arranged on the top of the workbench 1, a bracket 2 is fixedly connected to the top of the workbench 1, a bidirectional electric telescopic rod 3 is arranged on the bracket 2, a pressing plate 4 is fixedly connected to the bottom of the bidirectional electric telescopic rod 3, telescopic rods 5 are fixedly connected to both ends of the bidirectional electric telescopic rod 3, the other ends of the two telescopic rods 5 are fixedly connected to a fixing plate 6, a screwing assembly is arranged on the side where the two fixing plates 6 are separated, the screwing assembly includes two placement plates 7, the two placement plates 7 are slidably connected to one side of one of the fixing plates 6 through a slide groove 22, a bidirectional threaded rod 23 is arranged inside the slide groove 22, the bidirectional threaded rod 23 is threadedly connected to the two placement plates 7, a square telescopic rod 8 is rotatably connected to the top of the two fixing plates 6, a driving motor 15 is arranged on one of the placement plates 7, and the output end of the driving motor 15 is connected to the placement plate 7. One end of a square telescopic rod 8 is fixedly connected, and two worm gears 9 and a bevel gear 10 are fixedly arranged on the outer surface of the square telescopic rod 8. Connecting rods 11 are rotatably connected to the two placement plates 7. Worm gears 12 are fixedly sleeved on the outer surfaces of the two connecting rods 11. Screwing grooves 13 are provided at the bottoms of the two connecting rods 11. A driving assembly and a connecting assembly are provided on the bracket 2. Through the coordinated use of structures such as the bidirectional electric telescopic rod 3, the fixed plate 6, the placement plate 7, the square telescopic rod 8, the connecting rod 11, the screwing groove 13, the limit plate 21, the slide groove 22 and the bidirectional threaded rod 23, the positions of the four connecting rods 11 and the four screwing grooves 13 can be adjusted accordingly according to the screw installation positions at the four corners of the current transformers of different sizes to be pressed, so that the screw heads of the four screws can be moved into the screwing grooves 13 at the same time and then screwed, thereby improving the fixing efficiency of the current transformer after pressing.

[0029] The outer surface of the telescopic rod 5 is sleeved with a spring 14. Through the arrangement of the telescopic rod 5 and the spring 14, under the action of the cylinder 18, when the pressing plate 4 moves downward to press-fit the current transformer, the spring 14 can be squeezed and the telescopic rod 5 contracts, so that the four placement plates 7 move upward synchronously to avoid the four placement plates 7 obstructing the pressing plate 4 that is continuously pressed downward, resulting in the current transformer not being completely pressed together. The two worm gears 9 are respectively engaged with the two worm wheels 12.

[0030] The clamping assembly includes two electric telescopic rods 16 fixedly connected to the top of the workbench 1 , and the telescopic ends of the two electric telescopic rods 16 are fixedly connected to the clamping plate 17 .

[0031] The driving assembly includes a cylinder 18 fixedly mounted on the top of the bracket 2 , and the telescopic end of the cylinder 18 is fixedly connected to the bidirectional electric telescopic rod 3 .

[0032] The connecting component includes a square telescopic rod 19, which is rotatably connected to two of the placement plates 7. The outer surface of the square telescopic rod 19 is fixedly sleeved with two bevel gears 20 and two limit plates 21. The two bevel gears 10 are respectively meshed with the two bevel gears 20, and the two limit plates 21 are respectively rotatably connected to the two placement plates 7. Through the setting of the two limit plates 21, the square telescopic rod 19 can be prevented from moving left and right as a whole.

[0033] Working principle: When working, the current transformer to be pressed is placed on the workbench 1, and the two electric telescopic rods 16 are started at the same time, driving the two clamping plates 17 to move to the opposite side, and the two clamping plates 17 clamp and fix the current transformer to be pressed, and then the positions of the four connecting rods 11 and the screwing grooves 13 are adjusted according to the shape and size of the current transformer to be pressed, that is, the two bidirectional threaded rods 23 are rotated at the same time, and under the limiting effect of the two slide grooves 22, the four placement plates 7 are respectively moved laterally along the axial direction of the bidirectional threaded rods 23 , and simultaneously, the two square telescopic rods 1 8 are synchronously contracted or extended, and the square telescopic rod 2 19 is driven to move, and then the two-way electric telescopic rod 3 is started to synchronously extend or contract its two ends, and under the coordinated action of the telescopic rod 5, the fixed plate 6 and the placement plate 7, the two fixed plates 6 are moved to the opposite or separated side, driving the four placement plates 7 to move vertically, and under the limiting action of the two limiting plates 21, the square telescopic rod 2 19 is synchronously contracted or extended, and then the positions of the four connecting rods 11 and the four screwing grooves 13 can be adjusted;

[0034] After adjusting the positions of the four connecting rods 11 and the four screwing grooves 13 according to the size of the current transformer to be pressed and the position of the mounting hole thereon, screws are placed at the fixed connection points at the four corners of the current transformer, and the cylinder 18 is started to drive the bidirectional threaded rod 23, the telescopic rod 5, the spring 14, the pressing plate 4, the four placement plates 7 and the driving motor 15 to move downward, and the current transformer is pressed by the downward pressing plate 4. During the pressing process, the four screw heads are moved to the inside of the four screwing grooves 13 respectively. When the current transformer is pressed, it can be Start the driving motor 15 to drive one of the square telescopic rods 18, the two worms 9 and one of the bevel gears 10 to rotate, and drive the bevel gear 20 meshing with the bevel gear 10 to rotate, so that the square telescopic rod 2 19 and the other bevel gear 2 20 rotate, and then the other square telescopic rod 18 and the two worms 9 rotate synchronously, so that the four worm wheels 12 meshing with the worm 9 drive the connecting rod 11 to rotate synchronously, and the four rotating connecting rods 11 respectively drive the four screws to rotate, so as to fix the current transformer after the press-fitting is completed.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A current transformer press-fitting device, comprising a workbench (1), characterized in that: The top of the workbench (1) is provided with a clamping assembly, the top of the workbench (1) is fixedly connected with a bracket (2), a bidirectional electric telescopic rod (3) is provided on the bracket (2), the bottom of the bidirectional electric telescopic rod (3) is fixedly connected with a pressing plate (4), both ends of the bidirectional electric telescopic rod (3) are fixedly connected with telescopic rods (5), the other ends of the two telescopic rods (5) are fixedly connected with a fixing plate (6), and a screwing assembly is provided on the separated side of the two fixing plates (6), and the screwing assembly includes two placement plates (7), and the two placement plates (7) are slidably connected to one of the fixing plates (6) through a slide groove (22). ), a bidirectional threaded rod (23) is arranged inside the slide groove (22), and the bidirectional threaded rod (23) is threadedly connected to the two placement plates (7), the tops of the two fixed plates (6) are rotatably connected with a square telescopic rod (8), the outer surface of the square telescopic rod (8) is fixedly provided with two worms (9) and a bevel gear (10), the two placement plates (7) are rotatably connected with a connecting rod (11), the outer surfaces of the two connecting rods (11) are fixedly provided with a worm gear (12), the bottoms of the two connecting rods (11) are provided with a screwing groove (13), and the bracket (2) is provided with a driving component and a connecting component.

2. The current transformer press-fitting device according to claim 1, characterized in that: The outer surface of the telescopic rod (5) is sleeved with a spring (14), and the two worms (9) are respectively meshed with two worm wheels (12).

3. The current transformer press-fitting device according to claim 1, characterized in that: A driving motor (15) is arranged on one of the placement plates (7), and an output end of the driving motor (15) is fixedly connected to one end of one of the square telescopic rods (8).

4. The current transformer press-fitting device according to claim 1, characterized in that: The clamping assembly comprises two electric telescopic rods (16) fixedly connected to the top of the workbench (1), and the telescopic ends of the two electric telescopic rods (16) are fixedly connected to the clamping plate (17).

5. The current transformer press-fitting device according to claim 1, characterized in that: The driving assembly comprises a cylinder (18) fixedly mounted on the top of the bracket (2), and the telescopic end of the cylinder (18) is fixedly connected to the bidirectional electric telescopic rod (3).

6. The current transformer press-fitting device according to claim 1, characterized in that: The connecting assembly comprises a second square telescopic rod (19), the second square telescopic rod (19) being rotatably connected to two of the placement plates (7), and the outer surface of the second square telescopic rod (19) being fixedly sleeved with two second bevel gears (20) and two limit plates (21).

7. The current transformer press-fitting device according to claim 6, characterized in that: The two bevel gears (10) are respectively meshed with the two bevel gears (20), and the two limit plates (21) are respectively rotatably connected with the two placement plates (7).

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