Transformer iron core clamping device

Abstract

The utility model belongs to the field of transformer iron cores, and particularly relates to a transformer iron core clamping device which comprises a base. A groove is formed in the top of the base; a pair of through grooves is formed in the bottom of the groove; the side surface of the base is rotationally connected with a first screw rod; the first screw rod is in threaded connection with a pair of moving frames; during use, the bottom of a transformer iron core is inserted into the groove, a pin penetrates through the through groove, the directions of threads at the two ends of the first threaded rod are opposite, the first threaded rod is rotated to drive the transformer iron core to move away from or close to each other, and then the fixing plates are driven to move; the fixing plate is inserted into the through groove to extrude the pin, so that the pin is fixed, the situation that the pin is bent and deviated in the trimming process can be reduced, the trimming precision can be improved conveniently, and meanwhile the flatness of a trimmed notch is improved.

Description

Technical Field

[0001] The utility model relates to the field of transformer cores, and particularly to a clamping device for a transformer core. Background Art

[0002] The transformer core is a crucial component in a transformer, mainly responsible for magnetic conduction and the role of the skeleton.

[0003] In the current prior art, before welding the transformer core, workers need to trim the pins on the transformer core to reduce and neatly trim the length of the pins. In the existing technology, it is necessary to fix the transformer core. There are grooves on the workbench for inserting the transformer core. There are two through slots at the bottom of the grooves for the pins of the transformer core to pass through. The pins exposed at the through slots are cut by a trimming knife driven by a cylinder.

[0004] However, when trimming the pins of the transformer core, the pins are prone to bending, which affects the trimming accuracy of the pins and the flatness of the trimming cut. Therefore, a clamping device for a transformer core is proposed to solve the above problems. Summary of the Utility Model

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem in the background art, the utility model proposes a clamping device for a transformer core.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows: A clamping device for a transformer core according to the utility model includes a base; a groove is provided at the top of the base; a pair of through slots are provided at the bottom of the groove; a first screw is rotatably connected to the side of the base; a pair of moving frames are threadedly connected to the first screw; fixing plates are fixedly connected to one side of the pair of moving frames that are close to each other; the fixing plates are located on the side of the through slots; the fixing plates can be inserted into the through slots and are slidably matched with them. When in use, by rotating the first screw, it can drive the movement to move away from or close to each other, and then drive the fixing plates to move. The fixing plates are inserted into the through slots to squeeze the pins, so as to fix the pins. Therefore, the situation that the pins are bent and offset during the trimming process can be reduced, and the trimming accuracy can be improved, and at the same time, the flatness of the trimming cut can be improved.

[0007] Preferably, a motor is fixedly connected to the side of the base; a rotating shaft is fixedly connected to the output end of the motor; a first bevel gear is fixedly connected to the rotating shaft; a second bevel gear is fixedly connected to the first screw; the first bevel gear and the second bevel gear are meshed with each other.

[0008] Preferably, a pair of bases are fixedly connected to the top of the base; the pair of bases are located on both sides of the groove; a chute is formed inside the base; a vertical rod is slidably connected inside the chute; a pressing plate is provided at the top of the vertical rod; a shaft rod is fixedly connected to the bottom of the vertical rod; a pushing frame is fixedly connected to the top of the moving frame; the side of the pushing frame close to the shaft rod is inclined; the pushing frame is arranged in a U-shaped structure when viewed from above. When the moving frame moves, it will drive the pushing frame to move. The movement of the pushing frame will drive the shaft rod to move downward, and then drive the vertical rod and the fixing plate to move downward, so as to move downward from above, so as to fit the bottom side of the transformer core with the base and fix it.

[0009] Preferably, sliding sleeves are fixedly connected to both sides of the moving frame; guide rods are slidably connected inside the sliding sleeves; the guide rods are fixedly connected to the base; a spring is fixedly connected between the bottom end of the vertical rod and the base.

[0010] Preferably, a screw cylinder is estimated at the top of the vertical rod; a second screw rod is threadedly connected inside the screw cylinder; the top of the second screw rod is rotatably connected to a pressing plate.

[0011] Preferably, a rubber pad is provided on one side of the fixing plate close to the through groove; the rubber pad is detachably fixedly connected to the through groove by bolts.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. By setting the first screw rod, the moving frame, the base and the fixing plate, when in use, the bottom of the transformer core is inserted into the groove, and the pins pass through the through groove. The thread directions at both ends of the first screw rod are opposite. By rotating the first screw rod, it can drive the movement to move away from or close to each other, and then drive the fixing plate to move. The fixing plate is inserted into the through groove to squeeze the pins, so as to fix the pins. In this way, during the trimming process, the pins can be prevented from bending and shifting, and the trimming accuracy can be improved, and at the same time, the flatness of the trimming cut can be improved.

[0014] 2. By setting the base, the pushing frame, the vertical rod, the shaft rod and the pressing plate, during the use process, the pins may be bent and stuck against the side wall of the through groove, so that the bottom side of the transformer core is not completely fitted with the base. When in use, when the moving frame moves, it will drive the pushing frame to move. The movement of the pushing frame will drive the shaft rod to move downward, and then drive the vertical rod and the fixing plate to move downward, so as to move downward from above, so as to fit the bottom side of the transformer core with the base and fix it. Description of the Drawings

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 is a schematic structural diagram of the present invention;

[0017] Figure 2 is a schematic structural diagram of the bottom of the base of the present invention;

[0018] Figure 3 is a schematic structural diagram of the push frame of the present invention;

[0019] Figure 4 is a schematic structural diagram of the vertical rod of the present invention;

[0020] Figure 5 is a schematic structural diagram of the fixing plate of the present invention.

[0021] In the figure: 11, base; 12, groove; 13, through groove; 14, moving frame; 15, first screw; 16, fixing plate; 21, motor; 22, first bevel gear; 23, second bevel gear; 31, base; 32, push frame; 33, vertical rod; 34, pressing plate; 35, shaft rod; 41, guide rod; 42, sliding sleeve; 43, spring; 51, screw barrel; 52, second screw; 61, rubber pad; 62, bolt; 7, pulley. Detailed implementation manners

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0023] The following gives specific embodiments.

[0024] Please refer to Figures 1-5As shown in the figure, a clamping device for a transformer core includes a base 11; a groove 12 is provided at the top of the base 11; a pair of through grooves 13 are provided at the bottom of the groove 12; a first screw 15 is rotatably connected to the side of the base 11; a pair of moving frames 14 are threadedly connected to the first screw 15; a fixing plate 16 is fixedly connected to one side of each of the pair of moving frames 14 that are close to each other; the fixing plate 16 is located on the side of the through groove 13; the fixing plate 16 can be inserted into the through groove 13 and is slidably engaged with it; a motor 21 is fixedly connected to the side of the base 11; a rotating shaft is fixedly connected to the output end of the motor 21; a first bevel gear 22 is fixedly connected to the rotating shaft; a second bevel gear 23 is fixedly connected to the first screw 15; the first bevel gear 22 and the second bevel gear 23 are meshed with each other; during use, the bottom of the transformer core is inserted into the groove 12, and the pins pass through the through grooves 13. The thread directions at both ends of the first screw 15 are opposite. By rotating the first screw 15, it can drive the movement to move away from or close to each other, and then drive the fixing plate 16 to move. The fixing plate 16 is inserted into the through groove 13 to squeeze the pins, thereby fixing the pins. This can reduce the situation where the pins are bent and offset during the trimming process, and thus facilitate improving the trimming accuracy and at the same time improving the flatness of the trimming cut. During the use process, the motor 21 is used to drive the rotating shaft to rotate, so as to drive the first bevel gear 22 to rotate, and then drive the second bevel gear 23 to rotate, so as to drive the first screw 15 to rotate.

[0025] Further, as Figure 1 , 3As shown in Figure -4, a pair of bases 31 are fixedly connected to the top of the base 11; the pair of bases 31 are located on both sides of the groove 12; a chute is provided inside the base 31; a vertical rod 33 is slidably connected in the chute; a pressing plate 34 is provided at the top of the vertical rod 33; a shaft rod 35 is fixedly connected to the bottom of the vertical rod 33; a pushing frame 32 is fixedly connected to the top of the moving frame 14; the side of the pushing frame 32 close to the shaft rod 35 is inclined; the pushing frame 32 is of a U-shaped structure in a top view; sliding sleeves 42 are fixedly connected to both sides of the moving frame 14; a guide rod 41 is slidably connected inside the sliding sleeve 42; the guide rod 41 is fixedly connected to the base 11; a spring 43 is fixedly connected between the bottom end of the vertical rod 33 and the base 31; during the use process, the pins may be bent and stuck to the side wall of the through groove 13, resulting in the situation that the bottom side of the transformer core is not fully attached to the base 11. When in use, when the moving frame 14 moves, it will drive the pushing frame 32 to move. The movement of the pushing frame 32 will drive the shaft rod 35 to move downward, and then drive the vertical rod 33 and the fixing plate 16 to move downward, so as to move downward from above to attach the bottom side of the transformer core to the base 11 and fix it. Among them, the guide rod 41 can cooperate with the sliding sleeve 42 to guide the movement of the moving frame 14, thereby improving the stability during the movement. Among them, the spring 43 can facilitate the upward reset of the vertical rod 33.

[0026] Further, as Figures 3-4 shown, a screw cylinder 51 is estimated at the top of the vertical rod 33; a second screw rod 52 is threadedly connected inside the screw cylinder 51; the top of the second screw rod 52 is rotatably connected to the pressing plate 34; when in use, the staff can rotate the second screw rod 52, and under the threaded action of the second screw rod 52 and the screw cylinder 51, to adjust the position of the pressing plate 34, thereby facilitating the fixation of transformer cores of different sizes and improving the applicable range.

[0027] Further, as Figure 5 shown, a rubber pad 61 is provided on the side of the fixing plate 16 close to the through groove 13; the rubber pad 61 and the through groove 13 are detachably fixedly connected by bolts 62; when in use, the rubber pad 61 is detachably connected to the fixing plate 16 by bolts 62. Due to the elastic material of the rubber pad 61, it can play a role in protecting the pins, thereby reducing the situation of pin deformation when the pins are squeezed and fixed.

[0028] Further, as Figures 3-4 shown, a pulley 7 is rotatably connected to the shaft rod 35. When in use, by providing the pulley 7, the friction between the pulley 7 and the pushing frame 32 can be reduced, thereby facilitating the downward movement of the vertical rod 33.

[0029] Working principle: During use, the bottom of the transformer core is inserted into the groove 12, and the pins pass through the through groove 13. The thread directions at both ends of the first screw 15 are opposite. By rotating the first screw 15, it can drive the movement to move away from or close to each other, and then drive the fixed plate 16 to move. The fixed plate 16 is inserted into the through groove 13 to squeeze the pins, so as to fix the pins. This can reduce the situation that the pins are bent and offset during the trimming process, and thus facilitate improving the trimming accuracy and at the same time improving the flatness of the trimming cut. During use, the motor 21 is used to drive the rotating shaft to rotate, so as to drive the first bevel gear 22 to rotate, and then drive the second bevel gear 23 to rotate, so as to drive the first screw 15 to rotate. During use, the pins may be bent and stuck against the side wall of the through groove 13, resulting in the situation that the bottom side of the transformer core is not completely attached to the base 11. During use, when the moving frame 14 moves, it will drive the pushing frame 32 to move. The movement of the pushing frame 32 will drive the shaft rod 35 to move downward, and then drive the vertical rod 33 and the fixed plate 16 to move downward, so as to move from top to bottom, so as to attach the bottom side of the transformer core to the base 11 and fix it. The guide rod 41 can cooperate with the sliding sleeve 42, so as to guide the movement of the moving frame 14, and thus improve the stability during the movement. The spring 43 can facilitate the upward reset of the vertical rod 33. During use, the staff can rotate the second screw 52, and under the thread action of the second screw 52 and the screw barrel 51, so as to adjust the position of the pressing plate 34, and thus facilitate the fixation of transformer cores of different sizes, improving the applicable range. The rubber pad 61 is detachably connected to the fixed plate 16 by bolts 62. The elastic material of the rubber pad 61 can protect the pins, and thus reduce the situation that the pins are deformed when being squeezed and fixed.

[0030] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0031] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed.

Claims

1. A transformer core clamping device, comprising a base (11); characterized in that: The top of the base (11) is provided with a groove (12); the bottom of the groove (12) is provided with a pair of through grooves (13); the side of the base (11) is rotatably connected with a first screw rod (15); a pair of movable frames (14) are threadedly connected to the first screw rod (15); a fixing plate (16) is fixedly connected to the side of the pair of movable frames (14) close to each other; the fixing plate (16) is located on the side of the through groove (13); the fixing plate (16) can be inserted into the through groove (13) and slidably matched therewith.

2. A transformer core clamping device according to claim 1, characterized in that: A motor (21) is fixedly connected to the side of the base (11); a rotating shaft is fixedly connected to the output end of the motor (21); a first bevel gear (22) is fixedly connected to the rotating shaft; a second bevel gear (23) is fixedly connected to the first screw rod (15); and the first bevel gear (22) and the second bevel gear (23) are meshed with each other.

3. A transformer core clamping device according to claim 2, characterized in that: A pair of bases (31) are fixedly connected to the top of the base (11); the pair of bases (31) are located on both sides of the groove (12); a slide groove is provided inside the base (31); a vertical rod (33) is slidably connected in the slide groove; a pressure plate (34) is provided on the top of the vertical rod (33); a shaft rod (35) is fixedly connected to the bottom of the vertical rod (33); a pushing frame (32) is fixedly connected to the top of the movable frame (14); a side of the pushing frame (32) close to the shaft rod (35) is inclined; the pushing frame (32) is arranged in a U-shaped structure when viewed from above.

4. A transformer core clamping device according to claim 3, characterized in that: Both sides of the movable frame (14) are fixedly connected with a sliding sleeve (42); the interior of the sliding sleeve (42) is slidably connected with a guide rod (41); the guide rod (41) is fixedly connected to the base (11); and a spring (43) is fixedly connected between the bottom end of the vertical rod (33) and the base (31).

5. The transformer core clamping device according to claim 3, characterized in that: The top of the vertical rod (33) is estimated to have a screw barrel (51); the internal thread of the screw barrel (51) is connected to a second screw rod (52); the top of the second screw rod (52) is rotatably connected to a pressure plate (34).

6. A transformer core clamping device according to claim 1, characterized in that: A rubber pad (61) is provided on one side of the fixing plate (16) close to the through slot (13); the rubber pad (61) and the through slot (13) are detachably fixedly connected via bolts (62).

Images