Fixed-point punching device for transformer framework

Abstract

The utility model discloses a fixed-point punching device for a transformer framework, which belongs to the field of transformers and comprises the transformer framework consisting of a hollow winding post for winding a coil, L-shaped baffles welded on two sides of the hollow winding post and a plurality of pins welded on one sides of the L-shaped baffles. Compared with the prior art, the device has the advantages that through holes in the two sides of the hollow wrapping post are perpendicularly fixed to the upper surface of the fixing table through the top face detachable fixing disc and the bottom face detachable fixing disc, and the fixing screw penetrates through a center through hole of the top face detachable fixing disc and is screwed into a screw hole of the bottom face detachable fixing disc; in order to prevent the hollow wrapping post from idling during machining, positioning plates tightly attached to L-shaped baffles on the side faces of the hollow wrapping post are welded to the side faces of the top face detachable fixing disc and the bottom face detachable fixing disc, and then a servo motor is inserted into a bottom hole of the bottom face detachable fixing disc; the angle between the hollow wrapping post and the drill bit is controlled through rotation of the servo motor.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer field, concretely points to a kind of fixed-point punching device of transformer skeleton. BACKGROUND

[0002] In the existing transformer assembly, in order to ensure the heat dissipation performance of transformer, multiple ventilation holes are usually opened on the hollow winding column of the transformer skeleton, which are generally in the shape of a long strip or a round hole, so that the best heat dissipation effect can be achieved, and the ventilation holes are generally punched after being machined by an injection molding machine using a fixed-point punching device of the transformer skeleton.

[0003] The existing fixed-point punching device of the transformer skeleton usually adopts a three-axis punching assembly, which can perform punching operation on the transformer skeleton fixed on a fixed table, and in order to fix the transformer skeleton without affecting the punching, a pressing block and a screw are usually used to fix the L-shaped baffle on both sides of the hollow winding column on the fixed table.

[0004] During the punching process, if a cylindrical hollow winding column (which is generally in a rectangular structure) is encountered, it needs to be manually turned over when punching multiple surfaces, and the screw needs to be disassembled and fixed multiple times, and the common three-axis punching assembly will not be able to uniformly open multiple directional ventilation holes when punching. TECHNICAL CONTENT

[0005] The technical problem to be solved by the utility model is that the existing fixed-point punching device of the transformer skeleton cannot uniformly punch multiple ventilation holes on the outer surface of the cylindrical hollow winding column when punching the cylindrical hollow winding column.

[0006] To solve the above technical problems, the technical solution provided by the utility model is as follows: a fixed-point punching device of a transformer skeleton, comprising a transformer skeleton composed of a hollow winding column wound with a coil, L-shaped baffles welded on both sides of the hollow winding column, and a plurality of pins welded on one side of the L-shaped baffle, and a plurality of ventilation holes are provided on the side wall of the hollow winding column, one side of the transformer skeleton is provided with a three-axis punching assembly that punches through the ventilation holes, and a fixed table is provided below the three-axis punching assembly.

[0007] The through hole of the hollow winding column is perpendicular to the upper surface of the fixing table, two sides of the hollow winding column are respectively provided with a detachable fixing disc on the bottom surface of the through hole center of the hollow winding column and a detachable fixing disc on the top surface of the through hole center of the hollow winding column, and a fixing screw rod is arranged on one side of the top surface of the hollow winding column and passes through the detachable fixing disc on the top surface and the detachable fixing disc on the bottom surface, one side of the detachable fixing disc on the top surface and one side of the detachable fixing disc on the bottom surface are respectively provided with a positioning plate which is tightly arranged on the L-shaped baffle, and the bottom surface of the detachable fixing disc on the bottom surface is provided with a servo motor which passes through the fixing table.

[0008] As an improvement, a fixing clamp block is arranged between the L-shaped baffle and the positioning plate to ensure the stable connection of the two.

[0009] As an improvement, a polygonal fixing column is arranged on the top end of the output shaft of the servo motor and passes through the bottom surface of the detachable fixing disc on the bottom surface.

[0010] As an improvement, the three-axis punching assembly comprises a three-axis moving assembly and a puncher which is fixed on the Z-axis top surface of the three-axis moving assembly through a U-shaped sleeve, and the output end of the puncher is provided with a detachable drill bit.

[0011] As an improvement, one side of the fixing table is provided with a control panel which controls the three-axis moving assembly and a hand-operated pulse generator which manually controls the moving direction of the three-axis moving assembly.

[0012] As an improvement, the servo motor is connected with the bottom surface of the fixing table through a bolt structure.

[0013] Compared with the prior art, the two side openings of the hollow winding column are vertically fixed on the upper surface of the fixing table by using the detachable fixing disc on the top surface and the detachable fixing disc on the bottom surface, the fixing screw rod passes through the center through hole of the detachable fixing disc on the top surface and is screwed into the screw hole of the detachable fixing disc on the bottom surface, the positioning plate which tightly abuts against the L-shaped baffle on the side surface of the hollow winding column is welded on the side surface of the detachable fixing disc on the top surface and the detachable fixing disc on the bottom surface, then the servo motor is inserted into the bottom hole of the detachable fixing disc on the bottom surface, and the angle between the hollow winding column and the drill bit is controlled by the rotation of the servo motor. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a general structure diagram of the fixed-point punching device of the transformer framework.

[0015] Figure 2 It is a transformer framework structure diagram of the fixed-point punching device of the transformer framework.

[0016] Figure 3 It is an explosion view of the detachable fixing disc on the bottom surface of the fixed-point punching device of the transformer framework.

[0017] Figure 4 The utility model relates a fixed-point punching device's bottom detachable fixed disc section view of transformer framework.

[0018] As shown in the figure: 1, transformer framework;11, hollow winding column;111, air hole;12, L-shaped baffle;13, pin;2, three-axis punching assembly;21, three-axis moving assembly;211, control panel;212, hand pulse generator;22, punch;23, detachable drill;3, bottom detachable fixed disc;31, top detachable fixed disc;32, fixed screw;33, positioning plate;331, fixed clamping block;4, fixed table;5, servo motor;51, polygonal fixed column. DETAILED DESCRIPTION

[0019] The utility model will be further explained in detail in combination with the drawings.

[0020] As shown in the description accompanying drawings Figure 1 、 2 It includes the transformer framework 1 that is composed of the hollow winding column 11 that is wound coil, the L-shaped baffle 12 that is welded on both sides of the hollow winding column 11 and the several pin 13 that is welded on one side of the L-shaped baffle 12, and the side wall of the hollow winding column 11 is equipped with several air holes 111, wherein the L-shaped baffle 12 does not affect the pass of the center hole of the hollow winding column 11, and the pin 13 is welded below the vertical plane of the L-shaped baffle 12.

[0021] One side of the transformer framework 1 is equipped with the three-axis punching assembly 2 that punches the air hole 111, and the three-axis punching assembly 2 includes the three-axis moving assembly 21 and the punch 22 that is fixed on the top surface of the Z-axis of the three-axis moving assembly 21 through the U-shaped sleeve, the position of the punch 22 is controlled through the three-axis moving assembly 21, so that the drill of the punch 22 can punch in different directions on the corresponding surface of the rectangular hollow winding column 11, and the center line of the cylindrical hollow winding column 11 and the punch 22 is calibrated, in order to facilitate punching the air hole 111 of different sizes, the output end of the punch 22 is equipped with the detachable drill 23;Wherein the lower side of the three-axis moving assembly 21 is equipped with the fixed table 4 for fixing the three-axis moving assembly 21, in order to facilitate the batch operation of the three-axis punching assembly 2, the three-axis punching assembly 2 is like numerical control milling machine and has the control panel 211 that can input program, and in order to facilitate the position calibration of the detachable drill 23, the hand pulse generator 212 is connected on one side of the three-axis punching assembly 2, so that it can manually control the feed speed of the three-axis moving assembly 21 like numerical control milling machine.

[0022] As shown in the figure: 1, transformer framework;11, hollow winding column;111, air hole;12, L-shaped baffle;13, pin;2, three-axis punching assembly;21, three-axis moving assembly;211, control panel;212, hand pulse generator;22, punch;23, detachable drill;3, bottom detachable fixed disc;31, top detachable fixed disc;32, fixed screw;33, positioning plate;331, fixed clamping block;4, fixed table;5, servo motor;51, polygonal fixed column. Figure 1 、 3As shown in FIG. 4, in order to conveniently fix the through holes on both sides of the hollow winding column 11, the through hole of the hollow winding column 11 is perpendicular to the upper surface of the fixing table 4, and the hollow winding column 11 is respectively provided with a bottom detachable fixing disc 3 penetrating the bottom surface of the center through hole of the hollow winding column 11 and a top detachable fixing disc 31 penetrating the top surface of the center through hole of the hollow winding column 11, in order to ensure the stability of the bottom detachable fixing disc 3 and the top detachable fixing disc 31, the bottom detachable fixing disc 3 and the top detachable fixing disc 31 are both T-shaped structures, and the thin column end penetrates the center through hole of the hollow winding column 11, in order to fix the connection of the bottom detachable fixing disc 3 and the top detachable fixing disc 31, the top side of the hollow winding column 11 is provided with a fixing screw 32 penetrating the top detachable fixing disc 31 and the bottom detachable fixing disc 3, the center hole of the top detachable fixing disc 31 is a through hole, and the center through hole of the bottom detachable fixing disc 3 is a screw hole corresponding to the thread of the fixing screw 32 (the shape of the top detachable fixing disc 31 and the bottom detachable fixing disc 3 is determined according to the shape of the hollow winding column 11, and the hollow winding column 11 is mostly rectangular structure and cylindrical structure).

[0023] In order to ensure the stability of the connection between the top detachable fixing disc 31 and the bottom detachable fixing disc 3 and the L-shaped baffle 12, and to avoid the hollow winding column 11 from idling during processing, one side of the top detachable fixing disc 31 and the bottom detachable fixing disc 3 is provided with a positioning plate 33 closely attached to the L-shaped baffle 12, and a fixing clamp block 331 is arranged between the L-shaped baffle 12 and the positioning plate 33 to ensure the stability of the connection between the L-shaped baffle 12 and the positioning plate 33.

[0024] Then the servo motor 5 for controlling the angle rotation of the hollow winding column 11 is fixed on the bottom surface of the fixing table 4 by using a screw, and the output shaft of the servo motor 5 penetrates the fixing table 4, in order to ensure the synchronous rotation of the bottom detachable fixing disc 3 and the servo motor 5, the top end of the output shaft of the servo motor 5 is provided with a polygonal fixing column 51, and the polygonal fixing column 51 penetrates the bottom surface of the bottom detachable fixing disc 3, in order to avoid the falling of the bottom detachable fixing disc 3, a fixing screw is screwed into the side of the bottom detachable fixing disc 3, and the fixing screw penetrates the side of the bottom detachable fixing disc 3 and the side wall of the polygonal fixing column 51.

[0025] The utility model discloses in the specific implementation, respectively, the bottom detachable fixed disc 3 and the top detachable fixed disc 31 are inserted into the both ends of hollow winding column 11, and after fixed screw rod 32 is passed through the center via hole of top detachable fixed disc 31, is screwed into the center screw hole of bottom detachable fixed disc 3 and is fixed, pay attention to the positioning plate 33 of bottom detachable fixed disc 3 and top detachable fixed disc 31 side is closely attached on L-shaped baffle 12, if can not guarantee the stable connection of both, inserts fixed clamping block 331 in the gap of both, after that, the polygonal via hole of bottom detachable fixed disc 3 bottom is sleeved on the polygonal fixed column 51 on servo motor 5 output shaft top, and is screwed into fixed screw in the screw hole on one side of polygonal fixed column 51, after that, the zero point of detachable drill bit 23 is adjusted through hand -operated pulse generator 212, after that, input program, and through control panel 211 carries out the automation operation.

[0026] The above describes the utility model and its implementation mode, and this kind of description has no limit, and the shown in the drawing is only one of the embodiment of the utility model, and the actual structure is not limited to this. In general, if the ordinary skilled person in the art is inspired, without departing from the utility model creation tenet, does not design the similar structure mode and example with this technical scheme, all should belong to the protection scope of the utility model.

Claims

1. A transformer skeleton's fixed-point punching device, comprising a transformer skeleton (1) composed of a hollow bobbin (11) wound with coils, L-shaped baffles (12) welded on both sides of the hollow bobbin (11), and a plurality of pins (13) welded on one side of the L-shaped baffles (12), and a plurality of ventilation holes (111) are arranged on the side wall of the hollow bobbin (11), one side of the transformer skeleton (1) is provided with a three-axis punching assembly (2) punching through the ventilation holes (111), and the lower side of the three-axis punching assembly (2) is provided with a fixing table (4), characterized in that: the via hole of the hollow bobbin (11) is perpendicular to the upper surface of the fixing table (4), the two sides of the hollow bobbin (11) are respectively provided with a detachable bottom fixing disc (3) passing through the bottom surface of the center via hole of the hollow bobbin (11) and a detachable top fixing disc (31) passing through the top surface of the center via hole of the hollow bobbin (11), and the top side of the top of the hollow bobbin (11) is provided with a fixing screw (32) passing through the detachable top fixing disc (31) and the detachable bottom fixing disc (3), one side of the detachable top fixing disc (31) and the detachable bottom fixing disc (3) is provided with a positioning plate (33) closely attached to the L-shaped baffle (12), and the bottom surface of the detachable bottom fixing disc (3) is provided with a servo motor (5) passing through the fixing table (4).

2. The spot punching device for transformer frame according to claim 1, characterized in that: The L-shaped baffle (12) and the positioning plate (33) are provided with a fixed clamping block (331) to ensure stable connection.

3. The spot punching device for transformer frame according to claim 1, characterized in that: The top end of the output shaft of the servo motor (5) is provided with a polygonal fixed column (51), and the polygonal fixed column (51) passes through the bottom surface of the detachable bottom fixing disc (3).

4. The spot punching device of a transformer tank according to claim 1, characterized in that: The three-axis punching assembly (2) comprises a three-axis moving assembly (21) and a puncher (22) fixed on the Z-axis top surface of the three-axis moving assembly (21) through a U-shaped sleeve, and the output end of the puncher (22) is provided with a detachable drill bit (23).

5. A spot punching device for transformer bobbins as claimed in claim 4, characterized in that: One side of the fixing table (4) is provided with a control panel (211) controlling the three-axis moving assembly (21) and a hand pulse generator (212) manually controlling the moving direction of the three-axis moving assembly (21).

6. The spot punching device of a transformer tank according to claim 1, characterized in that: The servo motor (5) is connected to the bottom surface of the fixing table (4) through a bolt structure.

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