Electric spark universal conversion fixture

Abstract

The utility model relates to electric spark processing technical field, especially in kind a spark universal conversion fixture, including adapter rod, guide sleeve and example electrode, the adapter rod is L shape and one end is processed into the butt joint B of thickness D1, the non electrode one end of example electrode is processed into the butt joint A of thickness D2, the guide sleeve center is equipped with the limit slot of hollow, and the limit slot one side is processed into the opening, the utility model discloses conversion fixture simple structure, stable, can make three -axis electric spark realize the corner degree processing, equivalent to the rotation of B axis and C axis, to adapt to the processing demand of complex. The utility model discloses simple manufacture, and the adjustability is high, and the electric spark processing center of different models, the electrode of different shapes and various processing station needs of avoiding can be compatible.

Description

Technical Field

[0001] This utility model relates to the field of electrical discharge machining technology, and in particular to an electrical discharge universal conversion fixture. Background Technology

[0002] With the development of the aerospace industry and the continuous iteration of designs, irregularly shaped parts such as pumps and valves have gradually developed machining stations with various complex angles. These stations are difficult to machine using even multi-axis machining centers, highlighting the advantages of electrical discharge machining (EDM). EDM can change the electrode shape according to the shape of the machining station, simplifying the machining of complex positions. Currently, most EDM equipment is three-axis, and the cost of multi-axis EDM equipment is too high for multi-angle machining. Therefore, adding machining angles to three-axis EDM has become a low-investment, high-return approach. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model discloses an EDM universal conversion fixture.

[0004] The specific technical solution is as follows: An EDM universal conversion fixture includes an adapter rod, a guide sleeve, and an example electrode; the adapter rod is L-shaped and one end is machined into a mating interface B with a thickness of D1; the non-electrode end of the example electrode is machined into a mating interface A with a thickness of D2; a hollow limiting groove is formed in the center of the guide sleeve, and one side of the limiting groove is machined into an opening.

[0005] The sum of D1 and D2 is the thickness of the limiting groove. The space of the limiting groove is the overall shape after the interface A and interface B are matched, ensuring that the perpendicularity and flatness of the adapter rod and the example electrode are consistent.

[0006] The interface B has a threaded hole, and the interface A has a light hole. The positions and number of the threaded hole and the light hole are corresponding, and they are fixed by screws.

[0007] The assembly formed by the adapter rod and the example electrode is interference-fitted with the guide sleeve.

[0008] The adapter rod can be structurally modified according to the actual processing station to meet the processing requirements of various angles and dimensions.

[0009] The guide sleeve is designed to have different sizes and lengths depending on the change of the adapter rod.

[0010] Compared with the prior art, the present invention has the following beneficial technical effects: The angle of the adapter rod of this utility model can be changed according to the actual processing conditions to achieve universal conversion of the electrode direction. The adapter rod is 90°, realizing a 90° rotation of the processing station. In addition, the spindle can rotate, so the 90° adapter rod can be rotated another 360 degrees, which is equivalent to the rotation of the B-axis and C-axis.

[0011] This invention is applicable to various types of electrodes. Adaptive rods can be configured to match the electrode shape, providing modular adaptability and strong versatility. Through purely mechanical innovation, it achieves an optimal balance between cost, efficiency, and precision. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the conversion clamp of this utility model; Figure 2 This is an exploded view of the conversion fixture of this utility model; Figure 3 This is a three-dimensional structural diagram of the adapter rod of this utility model; Figure 4 This is a three-dimensional structural diagram of the guide sleeve of this utility model; In the diagram, 1 is the adapter rod; 11 is the interface B; 12 is the threaded hole; 2 is the guide sleeve; 21 is the limiting groove; 22 is the opening; 3 is the example electrode; 31 is the interface A; 32 is the aperture; and 4 is the screw. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but the scope of protection of the present invention is not limited to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a three-dimensional structural diagram of the conversion clamp of this utility model. Figure 2 This is an exploded view of the conversion fixture of this utility model. Figure 3 This is a three-dimensional structural diagram of the adapter rod of this utility model. Figure 4The figure shows a three-dimensional structural diagram of the guide sleeve of this utility model: This utility model electrical discharge universal conversion fixture includes an adapter rod 1, a guide sleeve 2, and an example electrode 3; the adapter rod 1 is L-shaped and one end is machined into a mating interface B11 with a thickness of D1; the non-electrode end of the example electrode 3 is machined into a mating interface A31 with a thickness of D2; a hollow limiting groove 21 is opened in the center of the guide sleeve 2, and an opening 22 is machined on one side of the limiting groove 21 to reduce the difficulty of mating. The sum of D1 and D2 is the thickness of the limiting groove 21, and the space of the limiting groove 21 is the overall shape after the mating interface A31 and the mating interface B11 are matched, ensuring that the perpendicularity and flatness of the adapter rod 1 and the example electrode 3 are consistent. The adapter rod is 90°, realizing a 90° rotation of the machining station. In addition, the spindle can rotate, so the 90° adapter rod can be rotated another 360 degrees, which is equivalent to the rotation of the B-axis and the C-axis. A threaded hole 12 is made on interface B11, and a light hole 32 is made on interface A31. The positions and number of the threaded hole 12 and the light hole 32 are corresponding and are fixed by screw 4 to realize the connection between the adapter rod 1 and the example electrode 3 and to give the connection strength.

[0015] The assembly formed by the adapter rod 1 and the example electrode 3 is interference-fitted with the guide sleeve 2. The adapter rod 1 can be structurally modified according to the actual machining station to meet the machining requirements of various angles and dimensions. The guide sleeve 2 can be designed to have different sizes and lengths depending on the adapter rod 1.

[0016] During operation, since the adapter rod is 90°, it achieves a 90° rotation of the machining station. In addition, the spindle can rotate, so the 90° adapter rod can be rotated another 360 degrees, which is equivalent to the rotation of the B-axis and the C-axis.

[0017] If a part is relatively tall and needs to be machined horizontally, the electrode needs to be rotated 90° and then rotated 90°. The operation is as follows: (1) First, connect the adapter rod 1 to the example electrode 3 with screw 4 to ensure that the adapter rod 1 and the example electrode 3 are fixed; (2) Place the guide sleeve 2 on the connection between the adapter rod 1 and the example electrode 3, and adjust the position of the guide sleeve 2 to avoid interference with the workpiece; (3) Install the assembly of the adapter rod 1 and the example electrode 3 after they are fitted together by the guide sleeve 2 on the main shaft of the EDM equipment, adjust it to 90°, and then adjust the position of the adapter rod on the main shaft to ensure the flatness and perpendicularity of the adapter rod; (4) Verify the perpendicularity between the example electrode 3 and the adapter rod 1 to ensure that the processing requirements are met; (5) Test process the workpiece and check whether the perpendicularity of the station after processing meets the requirements; (6) After the test is passed, the formal electrical discharge machining will begin.

Claims

1. A universal conversion fixture for electrical discharge machining, characterized in that: It includes an adapter rod (1), a guide sleeve (2) and an example electrode (3); the adapter rod (1) is L-shaped and one end is machined into a mating interface B (11) with a thickness of D1; the non-electrode end of the example electrode (3) is machined into a mating interface A (31) with a thickness of D2; the guide sleeve (2) has a hollow limiting groove (21) in the center and an opening (22) on one side of the limiting groove (21).

2. The EDM universal conversion fixture according to claim 1, characterized in that: The sum of D1 and D2 is the thickness of the limiting groove (21). The space of the limiting groove (21) is the overall shape after the interface A (31) and interface B (11) are matched, ensuring that the perpendicularity and flatness of the adapter rod (1) and the example electrode (3) are consistent.

3. The EDM universal conversion fixture according to claim 1, characterized in that: A threaded hole (12) is provided on the interface B (11), and a light hole (32) is provided on the interface A (31). The positions and number of the threaded hole (12) and the light hole (32) are corresponding, and they are fixed by screws (4).

4. The EDM universal conversion fixture according to claim 1, characterized in that: The assembly formed by the adapter rod (1) and the example electrode (3) is interference-fitted with the guide sleeve (2).

5. The EDM universal conversion fixture according to claim 1, characterized in that: The adapter rod (1) can be structurally modified according to the actual processing station to meet the processing requirements of various angles and dimensions.

6. The EDM universal conversion fixture according to claim 1, characterized in that: The guide sleeve (2) is designed to have different sizes and lengths depending on the change of the adapter rod (1).

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