Fixture for centerless grinding of capillary tube

Abstract

The utility model provides a clamp for centerless grinding of capillary tubes, which relates to the technical field of capillary tube grinding equipment and comprises a supporting structure, a sliding adjusting structure and a positioning component, the sliding adjusting structure is connected with the positioning component, and the sliding adjusting structure is slidably connected with the supporting structure along the horizontal direction; the supporting structure comprises fixing assemblies and a blade assembly, the two ends of a blade of the blade assembly are connected with the corresponding fixing assemblies respectively, and the blade is used for supporting the capillary tube. A positioning hole is formed in the fixing assembly and used for limiting the capillary tube. The grinding tool rest solves the technical problem that in the prior art, due to the fact that a grinding tool rest cannot achieve good supporting, a capillary tube deviates in the grinding process.

Description

Technical Field

[0001] This utility model relates to the technical field of capillary grinding equipment, and in particular to a fixture for centerless capillary grinding. Background Technology

[0002] A capillary is a long metal tube with micro-engineered features throughout its entire channel. It is an important component of catheters used in minimally invasive treatments. Capillaries need to maintain a certain strength while being flexible at the distal end to achieve good pushability during use. When advancing along long, tortuous blood vessels, the distal portion needs to be rubbed with a variable diameter.

[0003] This type of variable diameter grinding is usually done using centerless grinding equipment. However, because the outer diameter of the capillary to be ground is very small, usually between 0.3 and 0.5 mm, conventional grinding tool holders cannot provide good support, causing the capillary to shift during grinding, which can easily result in dimensional and appearance defects. Utility Model Content

[0004] The purpose of this invention is to provide a fixture for centerless grinding of capillary tubes, so as to alleviate the technical problem in the prior art where the grinding tool holder cannot provide good support, resulting in capillary tube displacement during grinding.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] In a first aspect, this utility model provides a fixture for centerless grinding of capillary tubes, including a support structure, a sliding adjustment structure and a positioning component, wherein the sliding adjustment structure is connected to the positioning component, and the sliding adjustment structure is slidably connected to the support structure in the horizontal direction.

[0007] The support structure includes a fixing component and a blade assembly. The two ends of the blade of the blade assembly are respectively connected to the corresponding fixing component, and the blade is used to support the capillary.

[0008] The fixing component has a positioning hole, which is used to limit the position of the capillary.

[0009] Furthermore, the support structure also includes a mounting bracket, which is connected to both the fixing component and the blade assembly.

[0010] The mounting bracket has a concave surface on its side.

[0011] Furthermore, the fixing assembly includes a first clamping member, a second clamping member, and a fastening bolt, wherein the first clamping member is connected to the mounting bracket;

[0012] The second clamping member is detachably connected to the first clamping member via the fastening bolt, and the second clamping member and the first clamping member form the positioning hole.

[0013] Furthermore, the blade assembly also includes a blade holder, which is connected to the mounting bracket and to the blade;

[0014] The blade is connected to the first clamping member.

[0015] Furthermore, the sliding adjustment structure includes a slider, a fixing member, and a support frame, wherein the slider is slidably connected to the mounting frame;

[0016] The fixing member is connected to the slider;

[0017] The support frame is slidably connected to the fixing member, and the positioning component is provided on the top of the support frame.

[0018] Furthermore, the support frame includes a longitudinal portion and a support portion, the support portion being disposed at the top of the longitudinal portion and connected to the positioning component;

[0019] The longitudinal section is provided with a sliding groove along the vertical direction;

[0020] The fixing member is slidably connected to the slide groove, and the fixing member is provided with an adjustment knob, which passes through the slide groove and is fastened to the slide groove.

[0021] Furthermore, the positioning component includes a V-shaped support piece and a sleeve, wherein the V-shaped support piece is connected to the support portion;

[0022] The sleeve is disposed on the V-shaped support plate, and the sleeve is used to pass through the capillary.

[0023] This utility model can achieve the following beneficial effects:

[0024] In a first aspect, this utility model provides a fixture for centerless grinding of capillary tubes, including a support structure, a sliding adjustment structure, and a positioning component. The sliding adjustment structure is connected to the positioning component, and the sliding adjustment structure is slidably connected to the support structure in the horizontal direction. The support structure includes a fixing component and a blade assembly. The two ends of the blade of the blade assembly are respectively connected to the corresponding fixing components, and the blade is used to support the capillary tube. The fixing component has a positioning hole for limiting the position of the capillary tube.

[0025] In this invention, the blade of the support structure is used to support the capillary along the extension direction of the blade, and the fixing components at both ends of the blade are provided with positioning holes. The positioning holes are used to position the capillary, thereby facilitating the grinding wheels on both sides to grind the capillary.

[0026] Compared with the prior art, the clamp for centerless grinding of capillary tubes provided by this utility model limits the capillary tube on the blade through the positioning hole of the fixing component, so that the capillary tube stays on the cutting edge of the blade. For longer capillary tubes, they can be inserted into the positioning component to prevent them from curling during the grinding process.

[0027] In summary, this utility model at least alleviates the technical problem in the prior art where the grinding tool holder cannot achieve good support, resulting in capillary displacement during grinding. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the main structure of a fixture for centerless grinding of capillary tubes provided in an embodiment of the present invention;

[0030] Figure 2 This is a partial side view of the fixture for centerless grinding of capillary tubes provided in an embodiment of the present invention.

[0031] Figure 3 This is a side view of the clamping part of a jig for centerless grinding of capillary tubes provided in an embodiment of the present invention.

[0032] Icons: 1-Support structure; 11-Mounting bracket; 111-Concave surface; 12-Fixing component; 121-First clamping element; 122-Second clamping element; 123-Fastening bolt; 124-Positioning hole; 13-Blade assembly; 131-Blade holder; 132-Blade; 2-Sliding adjustment structure; 21-Slider; 22-Fixing element; 221-Adjusting knob; 23-Support frame; 231-Longitudinal part; 2311-Slide groove; 232-Support part; 3-Positioning component; 31-V-shaped support piece; 32-Sleeve. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] In the description of this utility model, it should be noted that the terms "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0038] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0040] Example 1

[0041] This embodiment provides a fixture for centerless grinding of capillary tubes, see reference. Figure 1 The fixture for centerless grinding of capillary tubes includes a support structure 1, a sliding adjustment structure 2, and a positioning component 3. The sliding adjustment structure 2 is connected to the positioning component 3, and the sliding adjustment structure 2 is slidably connected to the support structure 1 in the horizontal direction. The support structure 1 includes a fixing component 12 and a blade assembly 13. The two ends of the blade 132 of the blade assembly 13 are respectively connected to the corresponding fixing component 12, and the blade 132 is used to support the capillary tube. The fixing component 12 has a positioning hole 124, which is used to limit the position of the capillary tube.

[0042] This utility model embodiment at least alleviates the technical problem in the prior art where the grinding tool holder cannot achieve good support, resulting in capillary deviation during grinding.

[0043] In this embodiment of the utility model, the blade 132 of the support structure 1 is used to support the capillary along the extension direction of its blade edge, and the fixing components 12 at both ends of the blade 132 are provided with positioning holes 124. The positioning holes 124 are used to position the capillary, thereby facilitating the grinding wheels on both sides to grind the capillary.

[0044] Compared with the prior art, the clamp for centerless grinding of capillary tubes provided in this embodiment of the utility model limits the capillary tube on the blade 132 by positioning hole 124 of fixing component 12, so that the capillary tube stays on the cutting edge of blade 132. For capillary tubes with a long length, they can be inserted into positioning component 3 to avoid curling during grinding.

[0045] In an optional implementation of this embodiment, refer to Figure 1 The support structure 1 also includes a mounting bracket 11, which is connected to the fixing component 12 and the blade assembly 13 respectively; the mounting bracket 11 has a concave surface 111 on its side.

[0046] Specifically: the mounting bracket 11 has symmetrical fixing components 12 on both sides of the top, and a blade assembly 13 is provided at the center of the top of the mounting bracket 11. The blade assembly 13 is connected to the fixing components 12 on both sides respectively; and the mounting bracket 11 has symmetrical concave surfaces 111 on both sides. The concave surfaces 111 are used to make way for the roller when the roller polishes the capillary.

[0047] Furthermore, referring to Figure 3The fixing component 12 includes a first clamping member 121, a second clamping member 122 and a fastening bolt 123. The first clamping member 121 is connected to the mounting bracket 11. The second clamping member 122 is detachably connected to the first clamping member 121 through the fastening bolt 123, and the second clamping member 122 and the first clamping member 121 form a positioning hole 124.

[0048] Specifically: the first clamping member 121 is connected to the top of the mounting bracket 11, and the second clamping member 122 is connected to the first clamping member 121 by fastening bolts 123. After the first clamping member 121 and the second clamping member 122 are connected, a positioning hole 124 is formed between them.

[0049] Furthermore, referring to Figure 1 The blade assembly 13 also includes a blade holder 131, which is connected to the mounting bracket 11 and to the blade 132; the blade 132 is connected to the first clamping member 121.

[0050] Specifically: the blade holder 131 is connected to the top of the mounting bracket 11, and the blade 132 is inserted into the top of the blade holder 131. The blade 132 is detachably connected to the blade holder 131 by bolts.

[0051] In an optional implementation of this embodiment, refer to Figure 1 The sliding adjustment structure 2 includes a slider 21, a fixing member 22 and a support frame 23. The slider 21 is slidably connected to the mounting frame 11; the fixing member 22 is connected to the slider 21; the support frame 23 is slidably connected to the fixing member 22, and a positioning component 3 is provided on the top of the support frame 23.

[0052] Specifically: the slider 21 is slidably connected to the groove of the mounting bracket 11 in the horizontal direction, while the support bracket 23 is connected to the slider 21 through the fastener 22; the top of the support bracket 23 is provided with a positioning component 3, and the height of the positioning component 3 matches the positioning hole 124.

[0053] Furthermore, referring to Figure 2 The support frame 23 includes a longitudinal part 231 and a support part 232. The support part 232 is located on the top of the longitudinal part 231 and is connected to the positioning component 3. The longitudinal part 231 has a vertical groove 2311. The fixing member 22 is slidably connected to the groove 2311, and the fixing member 22 is provided with an adjustment knob 221. The adjustment knob 221 passes through the groove 2311 and is fastened to the groove 2311.

[0054] Specifically: the longitudinal part 231 is distributed in the vertical direction, and its top is provided with a V-shaped support part 232, which is used to support the positioning component 3; the fixing part 22 is slidably connected to the slide groove 2311 to adjust the height of the fixing part 22, thereby adjusting the height of the positioning component 3; and the fixing part 22 is positioned relative to the fixing part 22 by tightening the adjustment knob 221.

[0055] Furthermore, referring to Figure 1 or Figure 2 The positioning component 3 includes a V-shaped support plate 31 and a sleeve 32. The V-shaped support plate 31 is connected to the support part 232. The sleeve 32 is disposed on the V-shaped support plate 31 and is used to pass through the capillary tube.

[0056] Specifically: the V-shaped support plate 31 is engaged with the support part 232 so that it is positioned relative to the support part 232, and a sleeve 32 is provided inside the V-shaped support plate 31 along its extension direction so that a longer capillary can be inserted into the sleeve 32 to limit the capillary and prevent it from curling due to being too long.

[0057] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similar or identical parts between embodiments can be referred to mutually. The above embodiments in this specification are only used to illustrate the technical solutions of this utility model, and not 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 or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of this utility model.

Claims

1. A fixture for centerless grinding of capillary tubes, characterized in that, It includes a support structure (1), a sliding adjustment structure (2) and a positioning component (3), wherein the sliding adjustment structure (2) is connected to the positioning component (3), and the sliding adjustment structure (2) is slidably connected to the support structure (1) in the horizontal direction; The support structure (1) includes a fixing component (12) and a blade assembly (13). The two ends of the blade (132) of the blade assembly (13) are respectively connected to the corresponding fixing component (12), and the blade (132) is used to support the capillary. The fixing component (12) has a positioning hole (124) for limiting the position of the capillary.

2. The fixture for centerless grinding of capillary tubes according to claim 1, characterized in that, The support structure (1) further includes a mounting bracket (11), which is connected to the fixing component (12) and the blade assembly (13) respectively; The mounting bracket (11) has a concave surface (111) on its side.

3. The fixture for centerless grinding of capillary tubes according to claim 2, characterized in that, The fixing component (12) includes a first clamping member (121), a second clamping member (122), and a fastening bolt (123), wherein the first clamping member (121) is connected to the mounting bracket (11); The second clamping member (122) is detachably connected to the first clamping member (121) by the fastening bolt (123), and the second clamping member (122) and the first clamping member (121) form the positioning hole (124).

4. The fixture for centerless grinding of capillary tubes according to claim 3, characterized in that, The blade assembly (13) further includes a blade holder (131), which is connected to the mounting bracket (11) and the blade holder (131) is connected to the blade (132). The blade (132) is connected to the first clamping member (121).

5. The fixture for centerless grinding of capillary tubes according to claim 2, characterized in that, The sliding adjustment structure (2) includes a slider (21), a fixing member (22) and a support frame (23), wherein the slider (21) is slidably connected to the mounting frame (11); The fixing member (22) is connected to the slider (21); The support frame (23) is slidably connected to the fixing member (22), and the positioning component (3) is provided on the top of the support frame (23).

6. The fixture for centerless grinding of capillary tubes according to claim 5, characterized in that, The support frame (23) includes a longitudinal part (231) and a support part (232). The support part (232) is located on the top of the longitudinal part (231) and is connected to the positioning component (3). The longitudinal portion (231) is provided with a vertical groove (2311); The fixing member (22) is slidably connected to the slide groove (2311), and the fixing member (22) is provided with an adjustment knob (221), which passes through the slide groove (2311) and is fastened to the slide groove (2311).

7. The fixture for centerless grinding of capillary tubes according to claim 6, characterized in that, The positioning component (3) includes a V-shaped support piece (31) and a sleeve (32), wherein the V-shaped support piece (31) is connected to the support part (232); The sleeve (32) is disposed on the V-shaped support plate (31), and the sleeve (32) is used to pass through the capillary.

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