Perforating device

Abstract

The invention discloses a punching device which is used for punching the end face, extending out of a flange, of a conducting rod on a gas insulation sleeve, the punching device comprises a machine base, a positioning clamping mechanism, a supporting mechanism and a punching mechanism, the positioning clamping mechanism is arranged at the first end of the machine base, and the supporting mechanism is arranged on the machine base in a sliding mode and is away from the positioning clamping mechanism; the gas insulation sleeve is placed on the supporting mechanism, the end, extending out of the flange, of the conducting rod is fixedly connected to the positioning and clamping mechanism, and the punching mechanism is arranged outside the machine base, close to the first end of the machine base and used for positioning and punching the conducting rod. Wherein the positioning and clamping mechanism comprises a positioning plate and a center positioning piece, the positioning plate is vertically fixed on the machine base and comprises a first surface and a second surface which are arranged oppositely, the first surface is close to the supporting mechanism, and one end of the conducting rod penetrates through the second surface from the first surface of the positioning plate; the center positioning piece sleeves one end of the conductive rod and is fixedly connected to the second surface of the positioning plate.

Description

Technical Field

[0001] This application relates to the technical field of the manufacture of gas-insulated bushings, and particularly to a punching device. Background Art

[0002] Gas-insulated bushings generally include insulators, flanges sleeved at both ends of the insulators respectively, and conductive rods. One end of the conductive rod is fixedly connected to one of the flanges, and the other end passes through the inner cavity of the insulator and extends from the end of the other flange. The end face of the conductive rod extending from the flange usually needs to be punched to connect with other devices, and there are position requirements such as angles between the holes on the end face of the conductive rod and the bolt holes on the flange. Therefore, the production is carried out by the method of assembling first and then punching. However, the existing punching methods all require installing positioning tooling for each specification of gas-insulated bushing products. There are many types of tooling, the punching process is cumbersome, the manual operation time is long, and the requirements for manual operation are high, resulting in low production efficiency. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the purpose of this application is to provide a punching device for punching the end face of the conductive rod extending from the flange of the gas-insulated bushing, so as to accurately position the gas-insulated bushing, improve production efficiency, and be applicable to products of multiple specifications.

[0004] To solve the above technical problems, the technical solution adopted in this application is: providing a punching device for punching the end face of the conductive rod extending from the flange of the gas-insulated bushing. The punching device includes a machine base, a positioning and clamping mechanism, a supporting mechanism, and a punching mechanism. The positioning and clamping mechanism is arranged at the first end of the machine base. The supporting mechanism is slidably arranged on the machine base and away from the positioning and clamping mechanism. The gas-insulated bushing is placed on the supporting mechanism. One end of the conductive rod extending from the flange is fixedly connected to the positioning and clamping mechanism. The punching mechanism is arranged outside the machine base and close to the first end of the machine base for positioning and punching the conductive rod. Among them, the positioning and clamping mechanism includes a positioning plate and a central positioning member. The positioning plate is vertically fixed on the machine base. The positioning plate includes a first surface and a second surface arranged opposite to each other. The first surface is close to the supporting mechanism. One end of the conductive rod passes through the first surface of the positioning plate to the second surface. The central positioning member is sleeved on one end of the conductive rod and fixedly connected to the second surface of the positioning plate.

[0005] In one embodiment, a first through hole penetrating the first surface and the second surface is opened at the center of the positioning plate, and one end of the conductive rod passes through the positioning plate through the first through hole.

[0006] In one embodiment, the central positioning member includes a positioning cylinder and a positioning disk. The positioning cylinder is hollow along the axial direction. The positioning disk extends radially outward along the outer periphery of the positioning cylinder to form an annular disk-shaped member. The positioning cylinder is sleeved on one end of the conductive rod, and the positioning disk is fixedly connected to the second surface of the positioning plate.

[0007] In one embodiment, a plurality of first positioning holes are provided circumferentially around the first through hole on the positioning plate, and a plurality of second positioning holes corresponding to and matching the first positioning holes are provided on the positioning disk. After the first positioning holes and the second positioning holes are correspondingly matched, a fastener is inserted therethrough to fixedly connect the central positioning member to the positioning plate.

[0008] In one embodiment, the inner diameter of the positioning cylinder matches the outer diameter of the conductive rod.

[0009] In one embodiment, the positioning and clamping mechanism further includes a positioning pin. Two first through slots are provided on the positioning plate in the vertical direction, and the two first through slots are respectively located outside the first through hole. After the positioning pin is inserted into the first through slot from the second surface of the positioning plate, the positioning pin is positioned and fixed with the flange.

[0010] In one embodiment, the positioning and clamping mechanism further includes a pressing device. Two second through slots are provided on the positioning plate in the horizontal direction, and the two second through slots are respectively located outside the first through hole. After the pressing device is inserted into the second through slot from one side of the positioning plate located on the second surface, it enters one side of the positioning plate located on the first surface, and presses and fixes the flange to the positioning plate.

[0011] In one embodiment, the support mechanism includes a bracket, a first support, a second support, and a support portion. The bracket is slidably connected to the machine base. The first support is fixed to the bracket in the vertical direction. The second support is movably arranged on the first support in the vertical direction. The support portion is arranged on the second support and is used to support the gas-insulated bushing.

[0012] In one embodiment, the first support includes a plurality of first support columns and a first support plate. The two ends of the plurality of first support columns are respectively connected and fixed to the bracket and the first support plate, so that the first support plate is spaced from the bracket.

[0013] In one embodiment, the second support includes a plurality of second support columns, a second support plate, and a third support plate. The two ends of the plurality of second support columns are respectively connected and fixed to the second support plate and the third support plate, so that the second support plate and the third support plate are spaced apart. The third support plate is movably connected to the first support column, so that the third support plate drives the second support to move in the vertical direction.

[0014] In one embodiment, the punching mechanism includes a punching head, a first punching module, and a second punching module. The first punching module drives the punching head to move back and forth in the X-axis direction, and the second punching module drives the punching head to move back and forth in the Y-axis direction, where the X-axis direction is in the horizontal plane and perpendicular to the axis direction of the conductive rod, and the Y-axis direction is the vertical direction.

[0015] The beneficial effects of the present application are as follows: Different from the prior art, the punching device of the present application accurately positions the gas-insulated bushing through the setting of the positioning mechanism. At the same time, the positioning mechanism is applicable to the application of gas-insulated bushings of various specifications, avoiding the phenomenon that customized positioning tooling is required for each specification product in the prior art. At the same time, a bi-weekly punching die is adopted. While automatically finding the position for punching, there is no need to install and disassemble the tooling for each product, simplifying the operation steps, reducing the operation time, and the horizontal punching method also improves the product operation mode and reduces the operation risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. Among them:

[0017] Figure 1 is a schematic perspective view of the punching device 100 in an embodiment;

[0018] Figure 2 is Figure 1 an enlarged view of part A in

[0019] Figure 3 is a schematic perspective view of the positioning plate 121 in an embodiment;

[0020] Figure 4 is a schematic perspective view of the central positioning member 122 in an embodiment;

[0021] Figure 5 is Figure 4 a side view of the central positioning member 122 in

[0022] Figure 6 is a schematic perspective view of the positioning pin 123 in an embodiment;

[0023] Figure 7 is a schematic perspective view of the support mechanism 130 in an embodiment;

[0024] Figure 8 is a schematic perspective view of the punching mechanism 140 in an embodiment;

[0025] Figure 9 is Figure 8 an enlarged view of part B in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0027] Refer to Figure 1 , the gas-insulated bushing 20 includes an insulator, flanges sleeved at both ends of the insulator respectively, and a conductive rod 21. One end of the conductive rod 21 is fixedly connected to one of the flanges, and the other end passes through the inner cavity of the insulator and extends from the end of the other flange. The present application provides a punching device 100 for punching the end face of the conductive rod 21 extending from the flange on the gas-insulated bushing 20. The punching device 100 includes a machine base 110, a positioning and clamping mechanism 120, a support mechanism 130, and a punching mechanism 140. The machine base 110 is a rectangular frame structure. The two ends of the edge of the machine base 110 along its length direction are respectively the first end 111 and the second end 112 of the machine base 110. The positioning and clamping mechanism 120 is arranged at the first end 111 of the machine base 110. The support mechanism 130 is slidably arranged on the machine base 110 and away from the positioning and clamping mechanism 120. The support mechanism 130 can slide along the length direction of the machine base 110, that is, the support mechanism 130 can slide arbitrarily between the first end 111 and the second end 112 of the machine base 110. The gas-insulated bushing 20 is placed on the support mechanism 130. By operating the support mechanism 130, the gas-insulated bushing 20 can move along the length direction of the machine base 110, and then the end of the conductive rod 21 extending from the flange can be moved to the positioning and clamping mechanism 120 and fixedly connected to the positioning and clamping mechanism 120. The punching mechanism 140 is arranged outside the machine base 110 and close to the first end 111 of the machine base 110 for positioning and punching the conductive rod 21.

[0028] Refer to Figures 1 - 3, the positioning and clamping mechanism 120 includes a positioning plate 121, a central positioning member 122, positioning pins 123 and a pressing device. The positioning plate 121 is vertically fixed to the machine base 110. The positioning plate 121 includes a first surface 1211 and a second surface 1212 which are arranged back to back, and the first surface 1211 is close to the support mechanism 130. A first through hole 1213 penetrating the first surface 1211 and the second surface 1212 is formed at the center of the positioning plate 121. One end of the conductive rod 21 passes through the first through hole 1213 and penetrates from the first surface 1211 of the positioning plate 121 to the second surface 1212, that is, one end of the conductive rod 21 penetrates out of the positioning plate 121. The pressing device includes a first pressing device 124 and a second pressing device 125. The central positioning member 122 is sleeved on one end of the conductive rod 21 and abuts against the second surface 1212 of the positioning plate 121, and the central positioning member 122 is fixed to the positioning plate 121 by the first pressing device 124. At the same time, the flange of the gas insulation bushing 20 abuts against the first surface 1211 of the positioning plate 121, and the flange is fixed to the positioning plate 121 by the second pressing device 125.

[0029] Specifically, two first through slots 1214 are arranged on the positioning plate 121 in the vertical direction, and the two first through slots 1214 are respectively located outside the first through hole 1213. Two second through slots 1215 are arranged on the positioning plate 121 in the horizontal direction, and the two second through slots 1215 are respectively located outside the first through hole 1213, that is, the two first through slots 1214 and the two second through slots 1215 are evenly distributed along the circumferential direction of the first through hole 1213 outside the first through hole 1213. A number of second through holes 1216 are evenly arranged on both sides of the first through slot 1214 on the positioning plate 121. When one end of the conductive rod 21 penetrates the positioning plate 121, the end face of the flange abuts against the first surface 1211 of the positioning plate 121. After the positioning pin 123 is inserted into the first through slot 1214 from the second surface 1212 of the positioning plate 121, the positioning pin 123 is positioned and fixed with the flange. At the same time, one end of the conductive rod 21 is sleeved with the central positioning member 122 to prevent the extended part of the conductive rod 21 from being too long and shaking during the drilling process. The first pressing device 124 presses the central positioning member 122 to fix the central positioning member 122 to the positioning plate 121. And the second pressing device 125 is inserted into the second through slot 1215 from one side of the positioning plate 121 located on the second surface 1212 and then enters one side of the positioning plate 121 located on the first surface 1211. Then the second pressing device 125 presses the flange to fixedly connect the flange to the positioning plate 121. Wherein, the pressing device is a rotary pressing cylinder.

[0030] Combined with Figures 4 - 5As shown, the central positioning member 122 includes a positioning cylinder 1221 and a positioning disk 1222. The positioning cylinder 1221 is a hollow structure along the axial direction. The positioning disk 1222 extends radially outward along the outer circumference of the positioning cylinder 1221 to form an annular disk-shaped member, and the positioning disk 1222 is located at the middle position of the positioning cylinder 1221 along its axial direction. When the positioning cylinder 1221 is sleeved and fixed at one end of the conductive rod 21, the positioning disk 1222 is fixedly connected to the second surface 1212 of the positioning plate 121. At this time, the positioning cylinder 1221 close to the flange side is defined as the first positioning cylinder 12211, and the positioning cylinder 1221 far from the flange side is defined as the second positioning cylinder 12212. The inner cavities of the first positioning cylinder 12211 and the second positioning cylinder 12212 are communicated and are used for sleeving on the outer peripheral surface of the conductive rod 21. And the first positioning cylinder 12211 is located in the inner cavity of the flange after passing through the first through hole 1213. Therefore, the outer diameter of the first positioning cylinder 12211 should be smaller than the inner diameter of the flange to facilitate the insertion of the first positioning cylinder 12211 into the inner cavity of the flange. Wherein, the inner diameter of the positioning cylinder 1211 matches the outer diameter of the conductive rod 21, that is, the inner diameter of the positioning cylinder 1211 is equal to or slightly larger than the outer diameter of the conductive rod 21, which is convenient for the positioning cylinder 1211 to be sleeved and fixed on the outer periphery of the conductive rod 21 and the socket is stable. The outer diameter of the first positioning cylinder 12211 and the outer diameter of the second positioning cylinder 12212 can be equal or not equal, as long as the first positioning cylinder 12211 can be inserted into the inner cavity of the flange.

[0031] Wherein, a plurality of first positioning holes are provided on the positioning plate 121 around the circumference of the first through hole 1213, and a plurality of second positioning holes corresponding and matching with the first positioning holes are provided on the positioning disk 1222. After the first positioning holes and the second positioning holes are correspondingly matched, fasteners are passed through them to fixedly connect the central positioning member 122 to the positioning plate 121.

[0032] At the same time, the outer diameter of the first positioning cylinder 1211 is smaller than the diameter of the first through hole 1213 to be applicable to central positioning members 122 of various specifications, that is, applicable to gas-insulated bushings 20 of various specifications, and the applicability of the positioning mechanism 120 is expanded.

[0033] Combined Figure 6As shown, the positioning pin 123 includes a fixing portion 1231 and a positioning portion 1232. The fixing portion 1231 is a rectangular plate member, and the positioning portion 1232 is a long rod member similar to a pin. The positioning portion 1232 is fixed to one side plate surface of the fixing portion 1231. The fixing portion 1231 is provided with a third through hole 1233 corresponding to and matching the second through hole 1216. After the positioning portion 1232 of the positioning pin 123 passes through the first through slot 1214, the third through hole 1233 on the fixing portion 1231 corresponds to and matches the second through hole 1216 on the positioning plate 121, and then a fastener is passed through, so that the positioning pin 123 is fixedly connected to the positioning plate 121. Among them, the end of the positioning portion 1232 away from the fixing portion 1231 passes through the bolt hole on the flange, and two positioning pins 123 are provided, which respectively pass through two first through slots 1214 and are fixedly corresponding to two bolt holes on the flange, so as to position and fix the gas-insulated bushing 20.

[0034] Combined Figure 7 As shown, the support mechanism 130 is arranged at intervals along the length direction of the machine base 110 between the first end 111 and the second end 112 of the machine base 110 for supporting the gas-insulated bushing 20. The support mechanism 130 includes a bracket 131, a first support 132, a second support 133 and a support portion 134. Two guide rails 113 are provided on the machine base 110. The guide rails 113 are fixed above the machine base 110 along the length direction of the machine base 110. The two guide rails 113 are located between the first end 111 and the second end 112 of the machine base 110, and the two guide rails 113 are arranged at intervals in the width direction of the machine base 110. The bracket 131 is slidably connected to the two guide rails 113 through sliders, so that the support mechanism 130 reciprocates between the first end 111 and the second end 112 of the machine base 110 along the length direction of the machine base 110, and then one end of the conductive rod 21 of the gas-insulated bushing 20 extending out is fixedly connected to the positioning plate 121.

[0035] The first support 132 is fixedly connected to the bracket 131 in the vertical direction. The first support 132 includes a plurality of first support columns 1321 and a first support plate 1322. The two ends of the plurality of first support columns 1321 are respectively connected and fixed to the bracket 131 and the first support plate 1322, so that the first support plate 1322 is arranged at an interval from the bracket 131. The second support 133 is a movable support. The second support 133 is movably arranged on the first support 132 in the vertical direction. The second support 133 includes a plurality of second support columns 1331, a second support plate 1332 and a third support plate 1333. The two ends of the plurality of second support columns 1331 are respectively connected and fixed to the second support plate 1332 and the third support plate 1333, so that the second support plate 1332 and the third support plate 1333 are arranged at an interval. At the same time, the third support plate 1333 is movably connected to the first support column 1321, so that the third support plate 1333 drives the second support 133 to move in the vertical direction. Among them, the first support plate 1322 is located between the second support plate 1332 and the third support plate 1333, so that the second support 133 can move within the height range of the first support column 1321. Among them, the number of the first support columns 1321 is set to four, and the number of the second support columns 1331 is also set to four. Of course, it can also be set to other numbers, which is not limited here.

[0036] The support portion 134 is arranged on the second support 133. Specifically, the support portion 134 is arranged on the second support plate 1332. The second support 133 drives the support portion 134 to move in the vertical direction for supporting and positioning the gas-insulated bushing 20. The support portion 134 is a roller structure and is used for being clamped between the umbrella skirts of the gas-insulated bushing 20 and is not likely to roll and cause slipping. Since the support portion 134 is directly in contact with the umbrella skirt of the gas-insulated bushing 20, in order to avoid damaging the umbrella skirt of the gas-insulated bushing 20, the rollers of the support portion 134 are made of nylon material. The nylon material has high mechanical strength, good toughness, smooth surface and small friction coefficient, and will not cause damage to the surface of the gas-insulated bushing 20. In other embodiments, the contact part between the roller on the support portion and the gas-insulated bushing can also be made of other materials, as long as it can ensure that its surface is smooth and will not cause damage to the surface of the gas-insulated bushing.

[0037] The support mechanism 130 further includes a handwheel 135. By rotating the handwheel 135, the second bracket 133 can be controlled to move back and forth in the vertical direction. By controlling the movement of the gas-insulated bushing 20 in the vertical direction through the second bracket 133, on the one hand, it is convenient to adjust the concentricity between the gas-insulated bushing 20 placed on the support mechanism 130 and the first through hole 1213 on the positioning plate 121, ensuring smooth positioning connection; on the other hand, it is convenient for the hoisting of the gas-insulated bushing 20. By adjusting the distance between the gas-insulated bushing 20 and each component of the drilling device 100, the gas-insulated bushing 20 can be prevented from being damaged due to collision during the hoisting and transportation process. Since the support mechanism 130 mainly functions to support the gas-insulated bushing 20, its movement in the length direction of the machine base 110 can be roughly adjusted manually, that is, manually pushing the support mechanism 130 to slide along the two guide rails 113, as long as it can stably support the gas-insulated bushing 20. In other embodiments, a servo motor can also be provided to control the movement of the support mechanism in the length direction of the machine base, and a servo motor can be provided to control the movement of the second bracket in the vertical direction to achieve automated operation and precisely control the movement distance, which will not be elaborated here.

[0038] In this embodiment, the number of the support mechanisms 130 is two. The two support mechanisms 130 can more stably support the gas-insulated bushing 20, avoiding the phenomenon of unstable force when there is only one support mechanism 130 and it is not in the exact middle of the gas-insulated bushing 20, which may cause the inclination and dropping of the gas-insulated bushing 20. In other embodiments, when the length of the gas-insulated bushing is relatively long, the number of the support mechanisms is not limited and can be set to three or more, as long as it can support the gas-insulated bushing to keep it balanced.

[0039] Refer to Figure 1 、 Figure 8 and Figure 9, the punching mechanism 140 includes a body part 141 and a punching part 142. The punching part 142 is disposed on the body part 141. The body part 141 is further provided with a display screen and an electrical connection structure. The display screen is used to display the working state and data information of the punching mechanism 140, so as to help the staff adjust the processing parameters in time and ensure the processing effect; the electrical connection structure is used to provide power for the punching part 142. The punching part 142 includes a punching head 1421, a first punching module 1422 and a second punching module 1423. The first punching module 1422 drives the punching head 1421 to move back and forth along the X-axis direction, and the second punching module 1423 drives the punching head 1421 to move back and forth along the Y-axis direction, so that the punching head 1421 can accurately position and punch the end of the conductive rod 21. Among them, the X-axis direction is located in the horizontal plane and perpendicular to the axis direction of the conductive rod 21, and the Y-axis direction is the vertical direction, so the X-axis direction is perpendicular to the Y-axis direction. At the same time, the axis direction of the punching head 1421 is defined as the Z-axis direction, and the first punching module 1422 simultaneously drives the punching head 1421 to feed along the Z-axis direction, so that the punching head 1421 performs a punching operation on the end of the conductive rod 21. Similarly, the second punching module 1423 can also simultaneously drive the punching head 1421 to feed along the Z-axis direction, which will not be elaborated here. Among them, the axial direction of the conductive rod 21 is parallel to the Z-axis direction.

[0040] Specifically, when operating the punching mechanism 140, process parameters such as target position coordinates, punching / tapping mode, hole diameter, etc. need to be input into the display screen in advance, and the tool is replaced synchronously. After the Z-axis tool setting is completed, the quick-lock blocks below the first punching module 1422 and the second punching module 1423 are locked, and the target point is selected to start punching. The punching part 142 can automatically find the position and punch holes. After punching, it returns to the initial position to start the next cycle. The operation part of the body part 141 is also equipped with interlocking devices such as gratings and safety door locks to prevent the staff from accidentally touching during the punching operation and facilitate timely stopping of the operation. Among them, the positioning accuracy of the punching part 142 reaches ±0.02 mm, which greatly improves the punching accuracy, ensures the product qualification rate. While automatically finding the position and punching holes, there is no need to install and disassemble the tooling for each product, which simplifies the operation steps, reduces the operation time, and also improves the operation mode and reduces the operation risk.

[0041] Continue to refer to Figure 9 , the punching part 142 is further provided with a chip receiving groove 1424. The chip receiving groove 1424 is disposed below the punching head 1421 and extends along the Z-axis direction to the outside of the body part 141, so that the chip receiving groove 1424 can be used to receive the metal chips dropped from the conductive rod 21 during punching, and prevent the metal chips from falling on the ground or in the gap structure of the punching device 100, which is difficult to clean.

[0042] The working process of the punching device 100 is as follows: Adjust the position of the support mechanism 130 to ensure that the support part 134 is horizontally arranged. Place the gas-insulated composite bushing 20 on the support mechanism 130. By pushing the support mechanism 130, move the gas-insulated composite bushing 20 towards the positioning plate 121. At the same time, control the handwheel 135 to move the gas-insulated composite bushing 20 in the vertical direction until the conductive rod 21 can pass through the first through hole 1213 on the positioning plate 121. Then install the center positioning part 122 and the positioning pin 123 to achieve the positioning and fixing of the flange of the gas-insulated bushing 20 and the conductive rod 21. By operating the punching part 142, complete the punching of the end of the conductive rod 21.

[0043] The beneficial effects of the present application are as follows: Different from the prior art, the punching device of the present application enables the accurate positioning of the gas-insulated bushing through the setting of the positioning mechanism. At the same time, the positioning mechanism is applicable to the application of gas-insulated bushings of various specifications, avoiding the phenomenon that customized positioning tooling is required for each specification product in the prior art. At the same time, a double-week punching die is adopted. While automatically finding the position for punching, there is no need to install and disassemble the tooling for each product, which simplifies the operation steps, reduces the operation time, and the horizontal punching method also improves the product operation mode and reduces the operation risk.

[0044] The above description is only the implementation mode of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present application.

Claims

1. A punching device for punching the end face of the conductive rod extending from the flange of the gas-insulated bushing, characterized in that, The punching device includes a machine base, a positioning and clamping mechanism, a supporting mechanism, and a punching mechanism. The positioning and clamping mechanism is arranged at the first end of the machine base. The supporting mechanism is slidably arranged on the machine base and away from the positioning and clamping mechanism. The gas-insulated bushing is placed on the supporting mechanism. One end of the conductive rod extending out of the flange is fixedly connected to the positioning and clamping mechanism. The punching mechanism is arranged outside the machine base and near the first end of the machine base for positioning and punching the conductive rod. Among them, the positioning and clamping mechanism includes a positioning plate and a central positioning member. The positioning plate is vertically fixed on the machine base. The positioning plate includes a first surface and a second surface arranged opposite to each other. The first surface is close to the supporting mechanism. One end of the conductive rod penetrates from the first surface of the positioning plate to the second surface. The central positioning member is sleeved on one end of the conductive rod and fixedly connected to the second surface of the positioning plate.

2. The punching device according to claim 1, characterized in that, A first through hole penetrating the first surface and the second surface is formed at the center of the positioning plate. One end of the conductive rod penetrates the positioning plate through the first through hole.

3. The punching device according to claim 2, characterized in that, The central positioning member includes a positioning cylinder and a positioning disk. The positioning cylinder is hollow along the axial direction. The positioning disk extends radially outward along the outer periphery of the positioning cylinder to form an annular disk-shaped member. The positioning cylinder is sleeved on one end of the conductive rod. The positioning disk is fixedly connected to the second surface of the positioning plate.

4. The punching device according to claim 3, wherein, A plurality of first positioning holes are arranged on the positioning plate around the circumference of the first through hole. A plurality of second positioning holes corresponding to and matching the first positioning holes are arranged on the positioning disk. After the first positioning holes and the second positioning holes are correspondingly matched, fasteners are inserted through them to fixedly connect the central positioning member to the positioning plate.

5. The punching device according to claim 3, characterized in that The inner diameter of the positioning cylinder matches the outer diameter of the conductive rod.

6. The punching device according to claim 1, wherein The positioning and clamping mechanism further includes a positioning pin. Two first through slots are arranged on the positioning plate in the vertical direction. The two first through slots are respectively located outside the first through hole. After the positioning pin is inserted into the first through slot from the second surface of the positioning plate, the positioning pin is positioned and fixed to the flange.

7. The punching device according to claim 2, characterized in that, The positioning and clamping mechanism further includes a pressing device. Two second through slots are arranged on the positioning plate in the horizontal direction. The two second through slots are respectively located outside the first through hole. After the pressing device is inserted into the second through slot from one side of the positioning plate located on the second surface and enters the side of the positioning plate located on the first surface, the flange is pressed and fixed to the positioning plate.

8. The punching device according to claim 1, wherein, The supporting mechanism includes a bracket, a first support, a second support, and a supporting portion. The bracket is slidably connected to the machine base. The first support is vertically fixed on the bracket. The second support is vertically movably arranged on the first support. The supporting portion is arranged on the second support for supporting the gas-insulated bushing.

9. The punching device according to claim 8, wherein The first bracket includes a plurality of first struts and a first plate. Both ends of the plurality of first struts are respectively connected and fixed to the bracket and the first plate, so that the first plate and the bracket are arranged at intervals.

10. The punching device according to claim 9, wherein, The second bracket includes a plurality of second struts, a second plate and a third plate. Both ends of the plurality of second struts are respectively connected and fixed to the second plate and the third plate, so that the second plate and the third plate are arranged at intervals. The third plate is movably connected to the first strut, so that the third plate drives the second bracket to move in the vertical direction.

11. The punching device according to claim 1, characterized in that, The punching mechanism includes a punching head, a first punching module and a second punching module. The first punching module drives the punching head to move back and forth in the X-axis direction, and the second punching module drives the punching head to move back and forth in the Y-axis direction, where the X-axis direction is located in the horizontal plane and perpendicular to the axis direction of the conductive rod, and the Y-axis direction is the vertical direction.

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