Semi-automatic sand blasting tool for woven bracket

Abstract

The semi-automatic sand blasting tool comprises a lining rod body, and the lining rod body is integrally formed by a clamping section, a first large-diameter hollowed-out section, a second large-diameter hollowed-out section, a middle transition section, a first small-diameter hollowed-out section, a second small-diameter hollowed-out section and a head end transition section in sequence from left to right. Wherein the first large-diameter hollow-out section, the second large-diameter hollow-out section, the first small-diameter hollow-out section and the second small-diameter hollow-out section are each composed of four supporting rods which are arranged at intervals, and a gap is formed between every two supporting rods, and sand can pass through the outer surface of the woven support to be hit on the inner surface of the woven support to be used for removing an oxide layer on the inner surface of the woven support. According to the tool, the woven support rotates at a constant speed, and the sand blasting opening moves at a constant speed, so that the problem of non-uniformity of sand blasting caused by manual operation is solved, and the operation is more convenient and stable.

Description

Technical Field

[0001] This utility model specifically relates to the field of medical device technology, and more specifically to a semi-automatic sandblasting fixture for a braided support. Background Technology

[0002] Sandblasting is not suitable for woven supports (made of nickel-titanium tubing) used in open-loop structures. The interlacing of the nickel-titanium wires makes it impossible to use the tooling for sandblasting the supports to remove the oxide layer, and the areas where the oxide layer is not removed are difficult to remove during polishing. Utility Model Content

[0003] Therefore, this utility model proposes a semi-automatic sandblasting fixture for woven supports to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a semi-automatic sandblasting fixture for a braided bracket, comprising a liner body, wherein the liner body is integrally formed from left to right by a clamping section, a large-diameter hollow section one, a large-diameter hollow section two, a middle transition section, a small-diameter hollow section one, a small-diameter hollow section two, and a head end transition section;

[0005] The large-diameter hollow section one, the large-diameter hollow section two, the small-diameter hollow section one, and the small-diameter hollow section two are all composed of four spaced support rods, and a gap is formed between each pair of support rods to allow sand to pass through the outer surface of the woven bracket and hit the inner surface to remove the oxide layer on the inner surface.

[0006] Furthermore, as a preferred embodiment, the outer diameters of the large-diameter hollow section one and the large-diameter hollow section two are the same, and the outer diameters of the small-diameter hollow section one and the small-diameter hollow section two are the same.

[0007] Furthermore, as a preferred embodiment, the gaps between the large-diameter hollow section one and the large-diameter hollow section two, as well as the gaps between the small-diameter hollow section one and the small-diameter hollow section two, are all staggered.

[0008] Furthermore, as a preferred embodiment, the main body of the liner is made of stainless steel.

[0009] This utility model adopts the above technology and has the following beneficial effects compared with the existing technology:

[0010] 1. In this new tooling, the uniform rotation of the braided bracket and the uniform movement of the sandblasting nozzle solve the problem of uneven sandblasting caused by manual operation, making the operation more convenient and stable.

[0011] 2. In this new tooling, the position of the interlaced nickel-titanium wires on the braided bracket sleeved on the liner rods of different diameters changes, which can remove all the oxide layer.

[0012] 3. In this new tooling, the two-section hollow structure design ensures the uniformity of sandblasting on the inner surface of the braided bracket.

[0013] 4. In this new tooling, the four hollow designs enhance the support, and the woven bracket is softer and more easily deformed than the cutting bracket, ensuring that the woven bracket does not deform during the sandblasting process. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the planar structure of a semi-automatic sandblasting fixture with a braided support frame.

[0015] Figure 2 This is a three-dimensional structural diagram of a semi-automatic sandblasting fixture with a braided support.

[0016] In the diagram: 1. Clamping section; 2. Large diameter hollow section one; 3. Large diameter hollow section two; 4. Middle transition section; 5. Small diameter hollow section one; 6. Small diameter hollow section two; 7. Head transition section. Detailed Implementation

[0017] With reference to the accompanying drawings of the embodiments of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below.

[0018] Example: Please refer to the appendix. Figure 1 and 2 This utility model provides a technical solution: a semi-automatic sandblasting fixture for a braided bracket, which includes a liner body. The liner body is made of clamping section 1, large diameter hollow section 1 2, large diameter hollow section 2 3, middle transition section 4, small diameter hollow section 1 5, small diameter hollow section 2 6 and head end transition section 7 in an integrated manner from left to right.

[0019] Among them, the large-diameter hollow section 1 2, the large-diameter hollow section 2 3, the small-diameter hollow section 1 5, and the small-diameter hollow section 2 6 are all composed of four spaced support rods, and a gap is formed between each pair of support rods to allow sand to pass through the outer surface of the woven support and hit the inner surface to remove the oxide layer on the inner surface.

[0020] Specifically, the four support rods prevent the woven frame from deforming during the sandblasting process.

[0021] In this embodiment, the outer diameters of the large-diameter hollow section 1 2 and the large-diameter hollow section 2 3 are the same, and the outer diameters of the small-diameter hollow section 1 5 and the small-diameter hollow section 2 6 are the same.

[0022] Specifically, the difference between the two hollow sections of the same diameter lies in the position of the support rod. They are used to remove the oxide layer on the inner surface that was blocked by the support rod during the first sandblasting. The smaller diameter hollow section allows the braided bracket to maintain its normal diameter and be fixed on it, while the larger diameter hollow section can open up the braided bracket and fix it on it, changing the position of the nickel-titanium wires to effectively remove the oxide layer.

[0023] In this embodiment, the gaps between the large-diameter hollow section 1 2 and the large-diameter hollow section 2 3, as well as the gaps between the small-diameter hollow section 1 5 and the small-diameter hollow section 2 6, are all staggered.

[0024] In this embodiment, the main body of the liner is made of stainless steel.

[0025] In practice, the braided support frame, after being heat-set to the required dimensions, is fitted onto the small-diameter perforated section 6 after passing through the head transition section 7. The main body of the liner is clamped on the motor and begins to rotate. The sandblasting nozzle moves left and right on the screw via the motor to perform sandblasting. When the sandblasting nozzle stops at the position between the small-diameter perforated section 6 and the small-diameter perforated section 5, the operator needs to move the braided support frame onto the small-diameter perforated section 5. The liner continues to rotate, and the sandblasting nozzle moves forward to perform sandblasting. The sandblasting nozzle stops at the middle position of the middle transition section 4. The employee moves the braided bracket to the large-diameter hollow section 2 (3). The diameter of the bracket increases, and the position of the nickel-titanium wires changes, exposing areas that were not previously sandblasted. The liner continues to rotate, and the sandblasting nozzle moves forward to perform sandblasting. The sandblasting nozzle stops at the position between the large-diameter hollow section 2 (3) and the large-diameter hollow section 1 (2). The operator moves the braided bracket to the large-diameter hollow section 1 (2). The liner body continues to rotate, and the sandblasting nozzle moves forward to perform sandblasting. The sandblasting nozzle stops at the clamping section 1, and the sandblasting of the braided bracket is completed.

[0026] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A semi-automatic sandblasting fixture for a braided support frame, comprising a main body of a liner, characterized in that: The main body of the liner is made of the clamping section (1), the large diameter hollow section one (2), the large diameter hollow section two (3), the middle transition section (4), the small diameter hollow section one (5), the small diameter hollow section two (6), and the head end transition section (7) in one piece from left to right; Among them, the large-diameter hollow section one (2), the large-diameter hollow section two (3), the small-diameter hollow section one (5), and the small-diameter hollow section two (6) are all composed of four spaced support rods, and a gap is formed between each pair of support rods to allow sand to pass through the outer surface of the braided bracket and hit the inner surface to remove the oxide layer of the inner surface.

2. The semi-automatic sandblasting fixture for a braided bracket according to claim 1, characterized in that: The outer diameter of the large-diameter hollow section one (2) is the same as that of the large-diameter hollow section two (3), and the outer diameter of the small-diameter hollow section one (5) is the same as that of the small-diameter hollow section two (6).

3. The semi-automatic sandblasting fixture for a braided bracket according to claim 2, characterized in that: The gaps between the large-diameter hollow section one (2) and the large-diameter hollow section two (3), as well as the gaps between the small-diameter hollow section one (5) and the small-diameter hollow section two (6), are all staggered.

4. The semi-automatic sandblasting fixture for a braided support according to claim 1, characterized in that: The main body of the liner is made of stainless steel.

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