A slotted wire cutting tool for screw shaft

Abstract

The utility model relates to a kind of screw shaft keyway processing tools, specifically to a kind of screw shaft slotting wire cutting tooling.The tooling includes pedestal, the pedestal includes two L type positioning blocks and a support block, the two L type positioning blocks are oppositely arranged, the L type positioning block includes cross block and vertical block, the support block is arranged between the vertical block of two L type positioning blocks, the support block divides the internal space of two L type positioning blocks into T-shaped groove and first U-shaped groove.The utility model tooling improves slotting accuracy and processing efficiency, guarantees screw shaft keyway processing qualified rate, and simple structure, convenient operation, low manufacturing cost.

Description

Technical Field

[0001] This utility model relates to a tool for machining keyways on a screw shaft, specifically a wire EDM fixture for slotting screw shafts. Background Technology

[0002] With the continuous development of technology, the application of screw shafts in aerospace equipment is becoming increasingly widespread, and the global demand for screw shafts is increasing every year. To ensure the processing quality of screw shafts, it is necessary to continuously optimize their processing technology. Among these processes, wire EDM grooving is a crucial step. However, existing screw shaft processing methods suffer from difficulties in controlling grooving accuracy and low processing efficiency, especially for small-sized screw shafts where grooving is extremely challenging. Therefore, developing a wire EDM fixture for screw shaft grooving is of great significance in order to reduce the difficulty and cost of keyway processing, improve the accuracy and dimensional pass rate of keyway processing, and complete keyway processing more efficiently, conveniently, and quickly. Utility Model Content

[0003] To overcome the above-mentioned defects, the purpose of this utility model is to provide a screw shaft grooving wire EDM tooling, which improves grooving accuracy and processing efficiency, ensures the pass rate of screw shaft keyway processing, and has a simple structure, convenient operation, and low manufacturing cost.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A slotted wire EDM fixture for a screw includes a base, which includes two L-shaped positioning blocks and a support block. The two L-shaped positioning blocks are arranged facing each other. Each L-shaped positioning block includes a horizontal block and a vertical block. The support block is disposed between the vertical blocks of the two L-shaped positioning blocks. The support block divides the internal space of the two L-shaped positioning blocks into a T-shaped groove and a first U-shaped groove.

[0005] Preferably, an end block is provided in the T-groove, and a second U-groove is formed on the end face of the end block that contacts the semi-finished screw shaft.

[0006] Preferably, the support block has several fixing holes, and fixing components are installed in the fixing holes.

[0007] Preferably, the fixing hole is a threaded hole, and the fixing element is a screw that matches the threaded hole.

[0008] The positive and beneficial effects of this utility model are as follows: 1. This utility model screw shaft grooving wire EDM fixture is used to install and fix semi-finished screw shafts. The processing starts from the smooth end face of the semi-finished screw shaft and extends to the step position, ensuring the total processing length. The grooving at both ends is consistent, with high grooving accuracy and high processing efficiency. To suit different specifications of screw shafts, the T-slot size of each base is different, solving the problem of grooving different specifications of screw shafts, especially the extremely difficult problem of grooving small specifications. Moreover, this utility model screw shaft grooving wire EDM fixture has a simple structure, low manufacturing cost, and produces products with consistent dimensions and stable quality. It has high processing efficiency, strong safety operation, and wide applicability. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the base structure of the slotted wire cutting tooling of the present invention; Figure 2 This is a schematic diagram of the end block structure of the slotted wire cutting tooling for the screw shaft of this utility model; Figure 3 This is a schematic diagram of the screw shaft slotting wire cutting tooling structure of this utility model; Figure 4 This is a schematic diagram of the semi-finished screw shaft structure of this utility model; Figure 5 This is a diagram showing the usage state of the screw shaft slotting wire cutting tool of this utility model; Figure 6 This is a schematic diagram of the finished screw shaft of this utility model; In the figure: 1-base, 11-L-shaped positioning block, 12-support block, 2-end block, 3-T-slot, 4-first U-slot, 5-second U-slot, 6-fixing hole, 7-screw, 8-screw shaft semi-finished product. Detailed Implementation

[0010] The present invention will be further described below with reference to some specific embodiments.

[0011] Example 1 See Figure 1-6 A slotted wire EDM fixture for a screw includes a base 1. The base 1 includes two L-shaped positioning blocks 11 and a support block 12. The two L-shaped positioning blocks 11 are arranged facing each other. Each L-shaped positioning block 11 includes a horizontal block and a vertical block. The support block 12 is fixedly connected between the vertical blocks of the two L-shaped positioning blocks 11. The support block 12 divides the internal space of the two L-shaped positioning blocks 11 into a T-shaped groove 3 and a first U-shaped groove 4.

[0012] Furthermore, an end block 2 is provided in the T-slot 3. A second U-shaped groove 5 is opened on the end face of the end block 2 that contacts the screw shaft semi-finished product 8. The grooved side of the end block contacts the end face of the screw shaft semi-finished product, and the other side is in close contact with the inner side of the base.

[0013] Furthermore, a row of fixing holes 6 are equally spaced on the support block 12, and fixing elements are installed in the fixing holes 6. The fixing elements pass through the fixing holes to abut against the end block, thereby clamping the position of the screw shaft semi-finished product.

[0014] Furthermore, the fixing hole 6 is a threaded hole, and the fixing component is a screw 7 that matches the threaded hole 6. The screw passes through the first U-shaped groove, passes through the support block and abuts against the end face of the end block away from the screw shaft semi-finished product, and clamps the stepped position of the screw shaft semi-finished product in the middle of the base and the end block. The position of the screw shaft semi-finished product is fixed, which facilitates the slotting wire cutting process.

[0015] The method of using this utility model screw slotting wire EDM fixture involves neatly arranging and installing the semi-finished screw shaft in the T-slot. The semi-finished screw shaft is a machined semi-finished product with steps. See [link to documentation]. Figure 4 The protrusion at one end of the semi-finished screw shaft engages with the groove in the end block, while the polished end extends beyond the T-slot. Using an electric wrench, a screw is quickly installed and tightened in the threaded hole, pressing against the end block. The end block compresses the semi-finished screw shaft to be processed, and the stepped portion of the semi-finished screw shaft is secured between the base and the end block. Once the entire assembly is complete, wire cutting is performed. First, the polished end of the semi-finished shaft is cut, then the outer threaded step is grooved and cut off. This method effectively avoids obstructing the product and tooling while achieving high precision and efficiency in machining the end face groove and cutting. See the finished product example. Figure 6 .

[0016] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A wire EDM fixture for slotting screw shafts, characterized in that, The device includes a base, which includes two L-shaped positioning blocks and a support block. The two L-shaped positioning blocks are arranged facing each other. Each L-shaped positioning block includes a horizontal block and a vertical block. The support block is disposed between the vertical blocks of the two L-shaped positioning blocks. The support block divides the internal space of the two L-shaped positioning blocks into a T-shaped groove and a first U-shaped groove.

2. The screw grooving wire cutting fixture according to claim 1, characterized in that, An end block is provided in the T-groove, and a second U-groove is opened on the end face of the end block that contacts the semi-finished screw shaft.

3. The screw shaft slotting wire cutting fixture according to claim 2, characterized in that, The support block has several fixing holes, and fixing components are installed in the fixing holes.

4. The screw shaft slotting wire cutting fixture according to claim 3, characterized in that, The fixing hole is a threaded hole, and the fixing component is a screw that matches the threaded hole.

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