Double-sided machining jig for drilling of spark erosion drilling machine

Abstract

The utility model discloses a double-face machining jig for punching of a spark erosion punching machine. The double-face machining jig comprises a turnover assembly and a plurality of locking mechanisms. The overturning assembly comprises an overturning driving part, the driving end of the overturning driving part is fixedly connected with a horizontally-arranged carrier support, a plurality of supporting pipes are arranged on the carrier support in the length direction of the carrier support, and each supporting pipe is provided with a supporting insertion hole with the two ends penetrating through. And each locking mechanism can be used for locking the workpiece in the corresponding supporting insertion hole. The double-sided punching device can realize double-sided punching operation on the workpiece without repeatedly disassembling and assembling the workpiece, is convenient to use and simple to operate, and can effectively improve the machining efficiency of the workpiece.

Description

Technical Field

[0001] This utility model relates to the field of drilling machine equipment technology, and in particular to a double-sided machining fixture for drilling with an electrical discharge drilling machine. Background Technology

[0002] An electrical discharge drilling machine, also known as an electrical discharge punch or electrical discharge fine hole generator, works by using a continuously moving, hollow, thin metal tube (as an electrode) to perform pulsed spark discharge on the workpiece to remove metal and create holes. Electrical discharge drilling machines are generally used as auxiliary equipment for wire electrical discharge cutting machines, processing wire-threading holes, spinnerets, spinneret holes, filter plates, sieve plates, engine blades, cylinder cooling holes, and oil and air passages in hydraulic and pneumatic valve bodies. Unlike wire electrical discharge cutting machines and forming machines, its pulsed electrode is a hollow copper tube, with the medium passing through a fine hole in the center of the tube for cooling and chip removal.

[0003] Currently, in the process of electrical discharge drilling of workpieces, the drilling device can generally only perform single-sided drilling operations. When the workpiece needs to be drilled on both sides, it needs to be disassembled from the carrier, flipped over, and then placed back into the carrier. This results in low drilling efficiency and slow processing speed.

[0004] Therefore, there is a need to provide a double-sided machining fixture for EDM drilling to solve the above problems. Utility Model Content

[0005] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a double-sided machining fixture for EDM drilling, which can realize double-sided drilling of workpieces without repeated disassembly and assembly, is convenient to use, simple to operate, and can effectively improve the processing efficiency of workpieces.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a double-sided machining fixture for drilling with an electrical discharge machining (EDM) machine, comprising a flipping assembly and several locking mechanisms; the flipping assembly includes a flipping drive component, the drive end of which is fixedly connected to a horizontally arranged carrier support, and several support tubes are arranged along the length of the carrier support, each of which has a support insertion hole through both ends, and each locking mechanism can lock the workpiece in the corresponding support insertion hole.

[0007] Furthermore, the driving end of the flipping drive extends along the length of the carrier support and penetrates through it, with the driving end connected to the interior of the carrier support via a bearing. This improves the stability of the carrier support during rotation and provides a certain supporting force, effectively improving the drilling accuracy during subsequent EDM drilling of the workpiece.

[0008] Furthermore, the locking mechanism includes a locking hole formed on the support tube and a locking screw adapted to the locking hole. One end of the locking hole communicates with the support insertion hole, and the other end extends out of the outer wall of the support tube in a direction away from the support insertion hole. After the workpiece is inserted into the support insertion hole, the operator rotates the locking screw until its end abuts against the side of the workpiece and secures it to the inner wall of the support insertion hole to ensure that the workpiece will not shift position during subsequent drilling, thus preventing misalignment during drilling.

[0009] Furthermore, the locking hole is a threaded hole, and the locking screw is inserted into the threaded hole and rotated to press the workpiece against the inner wall of the support socket. The cooperation between the threaded hole and the locking screw increases the speed at which the workpiece is fixed in the support socket, making it more convenient and efficient.

[0010] Furthermore, the locking mechanism includes an adjustment cavity, a push plate, a connecting rod, and a connecting air pipe. The adjustment cavity is located inside the carrier support. The two ends of the push plate in the length direction are slidably connected to the side wall of the adjustment cavity. One end of the connecting rod is fixedly connected to the middle of the push plate, and the other end extends into the support tube and is provided with a clamping plate. A connecting air pipe is connected to the side of the adjustment cavity away from the support tube.

[0011] Furthermore, the adjustment cavity is opened from top to bottom along the height direction of the carrier, and its top sealing cover is provided with a removable top cover. The removable top cover facilitates the maintenance or replacement of the push plate or connecting rod inside the adjustment cavity, while also ensuring the sealing of the adjustment cavity when closed.

[0012] Furthermore, a guide rail is provided on each of the opposite sides of the adjustment cavity, and both ends of the push plate along its length are slidably connected to a guide rail. The straight line along the length of the guide rail is parallel to the straight line along the length of the carrier support. The guide rail guides the movement of the push plate under pneumatic pressure to ensure the stability of the clamping plate in clamping the workpiece.

[0013] Furthermore, the EDM drilling machine includes a machine base, a plurality of drilling machines and an EDM machine, wherein the plurality of drilling machines and the EDM machine are connected to the machine base via a support frame, and the flipping assembly is located on a horizontally movable platform that is slidably connected to the machine base.

[0014] The beneficial effects of this utility model are:

[0015] In this invention, the flipping component and the carrier support work together. The flipping drive can drive the carrier support to flip at any angle. After one end of the workpiece is drilled, the flipping drive drives the carrier support to rotate 180 degrees to flip the other end of the workpiece (without a hole) under the EDM drilling machine for drilling. Double-sided drilling of the workpiece can be achieved without repeatedly disassembling and reassembling the workpiece. It is convenient to use, simple to operate, and can effectively improve the processing efficiency of the workpiece. Attached Figure Description

[0016] Figure 1 This is an axonometric view of the overall structure of an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the overall structure of the support pipe according to an embodiment of the present invention;

[0018] Figure 3 This is a partial cross-sectional schematic diagram of an embodiment of the present invention;

[0019] Figure 4 This is an isometric view of the overall structure of a machining fixture according to an embodiment of the present invention applied to an electrical discharge machining (EDM) drilling machine;

[0020] In the diagram: 1. Machine base; 2. Support frame; 3. Drilling machine; 4. EDM machine; 5. Horizontal moving table; 6. Tilting assembly; 61. Tilting drive component; 62. Tilting support; 7. Carrier support; 8. Support tube; 9. Support insertion hole; 10. Locking hole; 11. Workpiece; 12. Connecting bearing; 13. Adjustment chamber; 14. Guide slide rail; 15. Push plate; 16. Connecting rod; 17. Clamping plate; 18. Connecting air pipe. Detailed Implementation

[0021] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0022] See appendix Figures 1 to 4 As shown, a double-sided machining fixture for EDM drilling in this embodiment includes a flipping assembly 6 and several locking mechanisms; the flipping assembly 6 includes a flipping drive 61, the drive end of which is fixedly connected to a horizontally arranged carrier support 7. In some embodiments, the flipping drive 61 is a drive motor or an indexing plate, and the flipping drive 61 can drive the carrier support 7 to rotate around its circumference by a specified angle.

[0023] The carrier support 7 is provided with a plurality of support tubes 8 along its length direction. Each support tube 8 is provided with a support insertion hole 9 through both ends. The straight line of the length direction of the support tube 8 is perpendicular to the straight line of the length direction of the carrier. It can serve as a carrier for placing the workpiece 11 and limit the movement of the workpiece 11 in the circumferential direction.

[0024] In some embodiments, the outer periphery of each support tube 8 is connected to the carrier support 7 via a connecting bearing 12.

[0025] Each of the locking mechanisms can lock the workpiece 11 into the corresponding support socket 9. After the workpiece 11 is placed in the support tube 8, it is locked into the support socket 9 by the locking mechanism to avoid positional displacement and affecting the drilling accuracy during subsequent drilling.

[0026] After one end of workpiece 11 is drilled, the flipping drive 61 drives the carrier support 7 to rotate 180 degrees, so that the other end of workpiece 11 that is not drilled is flipped under the EDM drilling machine 3 for drilling. In this process, the workpiece 11 can be drilled on both sides without repeated disassembly and assembly, which can effectively improve the drilling speed and efficiency of workpiece 11.

[0027] The driving end of the flipping drive 61 extends along the length of the carrier support 7 into and through the interior of the carrier support 7, and the driving end is connected to the interior of the carrier support 7 by a bearing. This improves the stability of the carrier support 7 during rotation and also provides a certain supporting force to the carrier support 7, which can effectively improve the drilling accuracy when the EDM drilling machine 3 drills holes in the workpiece 11.

[0028] The locking mechanism includes a locking hole 10 formed on the support tube 8 and a locking screw adapted to the locking hole 10. One end of the locking hole 10 communicates with the support insertion hole 9, and the other end extends out of the outer wall of the support tube 8 in a direction away from the support insertion hole 9. After the workpiece 11 is inserted into the support insertion hole, the operator rotates the locking screw until its end abuts against the side of the workpiece 11 and tightens it onto the inner wall of the support insertion hole 9 to ensure that the workpiece 11 will not shift position during subsequent drilling, thus preventing misalignment during drilling.

[0029] The locking hole 10 is a threaded hole. The locking screw is inserted into the threaded hole and rotated to press the workpiece 11 against the inner wall of the support socket 9. The cooperation between the threaded hole and the locking screw increases the speed at which the workpiece 11 is fixed in the support socket 9, making it more convenient and faster.

[0030] The locking mechanism includes an adjustment cavity 13, a push plate 15, a connecting rod 16, and a connecting air pipe 18. The adjustment cavity 13 is located inside the carrier support 7. The two ends of the push plate 15 in the length direction are slidably connected to the side wall of the adjustment cavity 13. One end of the connecting rod 16 is fixedly connected to the middle of the push plate 15, and the other end extends into the support tube 8 and is provided with a clamping plate 17. A connecting air pipe 18 is connected to the side of the adjustment cavity 13 away from the support tube 8.

[0031] See appendix Figure 1-3 Each support tube 8 has a corresponding locking mechanism on its side. When the workpiece 11 is placed into the support tube 8, the air pump connected to the connecting air pipe 18 starts to work, inflating the connecting air pipe 18. By increasing the air pressure in the regulating cavity 13, the push plate 15 is pushed to move towards the support tube 8 under the guidance of the connecting rod 16, until the clamping plate 17 connected to the other end of the connecting rod 16 presses the workpiece 11 against the inner wall of the support insertion hole 9. After the workpiece 11 is drilled, the air pump draws in air, making the air pressure in the support tube 8 greater than the air pressure in the regulating cavity 13. This air pressure can push the clamping plate 17 to move towards the regulating cavity 13, so that the clamping plate 17 is reset and the workpiece 11 is no longer clamped, making it easy to remove later.

[0032] In some embodiments, the height of the clamping plate 17 is consistent with the height of the support socket 9, which can be used to clamp workpieces 11 of different sizes and specifications, and at the same time, it is more stable than simply locking a single fulcrum on the workpiece 11.

[0033] A sealing ring is provided around the contact port between the support tube 8 and the connecting rod 16 to ensure that no air leakage occurs during the back-and-forth movement of the connecting rod 16, thus affecting the sealing of the adjustment cavity 13.

[0034] The adjustment cavity 13 is opened from top to bottom along the height direction of the vehicle, and its top sealing cover is provided with a removable top cover. The removable top cover facilitates the maintenance or replacement of the push plate 15 or connecting rod 16 inside the adjustment cavity 13, while ensuring the airtightness of the adjustment cavity 13 when closed.

[0035] A guide rail 14 is provided on each of the opposite sides of the adjustment cavity 13. The two ends of the push plate 15 along its length are slidably connected to a guide rail 14. The straight line along the length of the guide rail 14 is parallel to the straight line along the length of the carrier support 7. The guide rail 14 can guide the movement of the push plate 15 under air pressure to ensure the stability of the clamping plate 17 in clamping the workpiece 11.

[0036] The electrical discharge machining (EDM) drilling machine 3 includes a machine base 1, several drilling machines 3, and several EDM machines 4. The drilling machines 3 and EDM machines 4 are connected to the machine base 1 via a support frame 2. The flipping assembly 6 is located on a horizontal moving table 5 that is slidably connected to the machine base 1. By integrating multiple drilling machines 3 and EDM machines 4 with different drilling diameters into the equipment, a single machine can meet the drilling requirements of multiple workpieces 11 with different drilling diameters and shapes, thereby effectively reducing the processing and production costs of enterprises. The horizontal moving table 5 can accurately move the workpiece 11 located in the support tube 8 to the bottom of the drilling equipment for precise drilling. The locking mechanism can stably fix the workpiece 11 in the support tube 8, ensuring the stability of the workpiece 11 during drilling.

[0037] In some embodiments, the flipping drive 61 is fixed to the horizontal moving stage 5 by a flipping support 62.

[0038] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A double-sided machining fixture for drilling with an electrical discharge machining (EDM) machine, characterized in that: It includes a flipping assembly and several locking mechanisms; the flipping assembly includes a flipping drive, the drive end of which is fixedly connected to a horizontally arranged carrier support, and several support tubes are arranged along its length on the carrier support. Each support tube has a support insertion hole that passes through both ends, and each locking mechanism can lock the workpiece in the corresponding support insertion hole.

2. The double-sided machining fixture for EDM drilling according to claim 1, characterized in that: The driving end of the flipping drive extends along the length of the vehicle support into the interior of the vehicle support and penetrates through it. The driving end is connected to the interior of the vehicle support by a bearing.

3. The double-sided machining fixture for EDM drilling according to claim 1, characterized in that: The locking mechanism includes a locking hole on the support tube and a locking screw that matches the locking hole. One end of the locking hole is connected to the support insertion hole, and the other end extends out of the outer wall of the support tube in a direction away from the support insertion hole.

4. A double-sided machining fixture for EDM drilling according to claim 3, characterized in that: The locking hole is a threaded hole. The locking screw is inserted into the threaded hole and rotated to press the workpiece against the inner wall of the support hole.

5. A double-sided machining fixture for EDM drilling according to claim 1, characterized in that: The locking mechanism includes an adjustment cavity, a push plate, a connecting rod, and a connecting air pipe. The adjustment cavity is located inside the carrier support. The two ends of the push plate are slidably connected to the side wall of the adjustment cavity along its length. One end of the connecting rod is fixedly connected to the middle of the push plate, and the other end extends into the support tube and is provided with a clamping plate. A connecting air pipe is connected to the side of the adjustment cavity away from the support tube.

6. A double-sided machining fixture for EDM drilling according to claim 5, characterized in that: The adjustment cavity is opened from top to bottom along the height direction of the vehicle, and its top sealing cover is provided with a removable top cover.

7. A double-sided machining fixture for EDM drilling according to claim 5, characterized in that: A guide rail is provided on each of the two opposite sides of the adjustment cavity. The two ends of the push plate along the length direction are slidably connected to a guide rail. The straight line along the length direction of the guide rail is parallel to the straight line along the length direction of the carrier support.

8. A double-sided machining fixture for EDM drilling according to claim 1, characterized in that: The electrical discharge machining (EDM) machine includes a machine base, several drilling machines, and an EDM machine. The drilling machines and EDM machines are connected to the machine base via a support frame. The flipping assembly is located on a horizontally movable platform that is slidably connected to the machine base.

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