A inner circle wire cutting clamp for bifurcated stent parts

Abstract

The utility model provides a kind of inner circle wire cutting clamp of bifurcated support part, including box, limiting cylinder and positioning cylinder, the side of the box is equipped with the first entrance for the support part of a supporting leg to extend into, and the second entrance for wire cutting crossbeam to extend into is equipped in adjacent side face;The mounting seat is equipped in the box, the top surface of the mounting seat is the top surface of the box, and the top surface is equipped with two positioning channels respectively just for the limiting cylinder and positioning cylinder insertion, the cross section of the limiting cylinder is equipped with limiting gap. It can stably fix the part, and realize the accurate wire cutting of inner circle.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing technology, specifically relating to an inner circle wire cutting fixture for a bifurcated bracket part. Background Technology

[0002] There is a type of forked bracket part, which has two forked support legs with two through holes on each support leg. The semi-finished product with the outer shape completed needs to be precision machined. The inner circle of the through hole on the support leg needs to be longitudinally wire-cut. During the machining, the wire-cut beam needs to be inserted into the inner cavity of the bracket part. There is a lack of special fixtures to support this machining process. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model provides an inner circle wire cutting fixture for bifurcated bracket parts, which can stably fix the parts and achieve precise wire cutting of the inner circle.

[0004] To achieve the objective of this utility model, the technical solution adopted by this utility model is as follows: A wire cutting fixture for a bifurcated bracket part includes a housing, a limiting cylinder, and a positioning cylinder. The housing has a first inlet on one side for a support leg of the bracket part to extend into, and a second inlet on an adjacent side for a wire cutting beam to extend into. The second inlet corresponds to a through hole in the part to be cut, and the bottom of the second inlet is higher than the bottom of the first inlet. The housing contains a mounting base, the top surface of which is the top surface of the housing. The top surface has two positioning channels that allow the limiting cylinder and positioning cylinder to be inserted into, respectively. The opening position and size of the positioning channels are adapted to the two through holes in the part. The limiting cylinder has a limiting notch in its cross-section. Both the limiting cylinder and the positioning cylinder have circumferential retaining rings, but the limiting notch lacks a retaining ring.

[0005] The positioning channel of this utility model is provided with a steel sleeve, which is a T-shaped tube that can be inserted into the positioning channel. The limiting cylinder and the positioning cylinder can be inserted into the steel sleeve.

[0006] Preferably, the steel sleeve is made of T10 steel.

[0007] The outer surfaces of the limiting cylinder and the positioning cylinder of this utility model are provided with anti-slip texture.

[0008] The mounting base of this utility model has a cavity below the first and second inlets, which is just enough for the bracket parts and the wire-cut crossbeam to extend into.

[0009] The beneficial effects of this utility model are as follows: entrances for parts and wire cutting beams to enter are respectively provided on two sides of the box body, and the entrance of the beam is higher, which allows the beam to enter the inner cavity of the part. By opening positioning channels with corresponding through holes on the top surface of the box body, two columns are inserted to position the part, ensuring the stability of the part during the cutting process. Limiting notches are set on the cross section of the columns to limit the cutting range within the hole, thereby achieving precise wire cutting of the inner circle. Attached Figure Description

[0010] Figure 1 This is a structural diagram showing the inner circle wire cutting fixture of the bifurcated bracket part of this utility model in use.

[0011] Figure 2 This is a schematic diagram of the inner circle wire cutting fixture for the bifurcated bracket part of this utility model.

[0012] Figure 3 This is a cross-sectional view of the inner circle wire cutting fixture for the bifurcated bracket part of this utility model.

[0013] Figure 4 This is a top view of the through hole of the bracket component, showing the state of the inner circle being cut.

[0014] The markings in the diagram are as follows: 1. Box body, 2. Limiting cylinder, 3. Positioning cylinder, 4. Bracket parts, 5. Snap ring, 6. Mounting base, 7. Steel sleeve, 8. Anti-slip texture, 11. First inlet, 12. Second inlet, 21. Limiting notch, 41. Through hole, 42. Cutting edge, 61. Positioning channel. Detailed Implementation

[0015] To more clearly and in detail illustrate the objective technical solution of this utility model, the present utility model will be further described below through relevant embodiments. The following embodiments are merely illustrative of the implementation methods of this utility model and do not limit the scope of protection of this utility model.

[0016] Example 1 like Figure 1-3As shown, an inner circle wire cutting fixture for a bifurcated bracket part includes a housing 1, a limiting cylinder 2, and a positioning cylinder 3. The housing 1 has a first inlet 11 on one side for a support leg of the bracket part 4 to extend into, and a second inlet 12 on the adjacent side for a wire cutting beam to extend into. The position of the second inlet 12 corresponds to the through hole of the part to be cut, and the bottom of the second inlet 12 is higher than the bottom of the first inlet 11. The housing 1 contains a mounting base 6, the top surface of which is the top surface of the housing 1. The top surface has two positioning channels 61, which are respectively designed for the insertion of the limiting cylinder 2 and the positioning cylinder 3. The opening position and size of the positioning channels 61 are adapted to the two through holes 41 of the part. The cross-section of the limiting cylinder 2 has a limiting notch 21. Both the limiting cylinder 2 and the positioning cylinder 3 are provided with circumferential retaining rings 5, but the limiting notch 21 does not have a retaining ring 5.

[0017] First, the housing 1 is welded and installed on the machine tool. Then, one support leg of the bracket part 4 is inserted into the housing 1 through the first inlet 11. The two through holes 41 are aligned with the corresponding positioning channels 61. The limiting cylinder 2 and the positioning cylinder 3 are inserted. The limiting cylinder 2 is inserted into the through hole to be cut. After the two cylinders are inserted, the bracket part 4 is fixed. The wire cutting beam moves forward and extends into the inner cavity of the bracket part 4 through the second inlet 12 of the housing 1. The water jet cutting is aligned with the limiting notch 21 of the limiting cylinder 2 from above. The limiting cylinder 2 restricts the cutting range of the water jet in the through hole, and only performs precise wire cutting on the inner wall of the hole at the limiting notch 21. The completed cut 42 is shown below. Figure 4 .

[0018] Example 2 This embodiment is based on embodiment 1: like Figure 3 As shown, the positioning channel 61 is provided with a steel sleeve 7, which is a T-shaped tube that can be inserted into the positioning channel 61. The limiting cylinder 2 and the positioning cylinder 3 can be inserted into the steel sleeve.

[0019] The steel sleeve 7 is made of T10 steel. The steel sleeve serves to resist wear.

[0020] Example 3 This embodiment is based on embodiment 1: The outer surfaces of the limiting cylinder 2 and the positioning cylinder 3 are provided with anti-slip textures 8. Since the cylinder is inserted just right and the fit is tight, the anti-slip textures facilitate the insertion and removal of the cylinder.

[0021] The mounting base 6 has a cavity below the first inlet 11 and the second inlet 12, which is just enough for the bracket parts and the wire-cut crossbeam to extend into.

[0022] Connection methods not mentioned in this utility model include welding, snap-fitting, riveting, hinge, threaded connection, or bonding.

[0023] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A wire cutting fixture for the inner circle of a bifurcated bracket part, characterized in that: The device includes a housing, a limiting cylinder, and a positioning cylinder. The housing has a first inlet on one side for a support leg of a bracket component to extend into, and a second inlet on an adjacent side for a wire cutting beam to extend into. The second inlet corresponds to the through hole of the component to be cut, and the bottom of the second inlet is higher than the bottom of the first inlet. The housing contains a mounting base, the top surface of which is the top surface of the housing. The top surface has two positioning channels that are precisely for the insertion of the limiting cylinder and the positioning cylinder. The opening position and size of the positioning channels are adapted to the two through holes of the component. The limiting cylinder has a limiting notch in its cross-section. Both the limiting cylinder and the positioning cylinder have circumferential retaining rings, but the limiting notch lacks a retaining ring.

2. The inner circle wire cutting fixture for a bifurcated bracket part according to claim 1, characterized in that: The positioning channel is provided with a steel sleeve, which is a T-shaped tube that can be inserted into the positioning channel. The limiting cylinder and the positioning cylinder can be inserted into the steel sleeve.

3. The inner circle wire cutting fixture for a bifurcated bracket part according to claim 2, characterized in that: The steel sleeve is made of T10 steel.

4. The inner circle wire cutting fixture for a bifurcated bracket part according to claim 1, characterized in that: The outer surfaces of the limiting cylinder and the positioning cylinder are provided with anti-slip textures.

5. The inner circle wire cutting fixture for a bifurcated bracket part according to claim 1, characterized in that: The mounting base has a cavity below the first and second inlets, which is just enough for the bracket parts and the wire-cut crossbeam to extend into.

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