A cutting device for cutting a glass capillary tube

By designing a cutting fixture for diamond wire cutting capillary tubes, the problem of low cutting efficiency of traditional glass capillary tubes was solved, achieving rapid non-destructive cutting and high-efficiency production.

CN224488686UActive Publication Date: 2026-07-14WUHAN JIEYAN NEW MATERIALS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN JIEYAN NEW MATERIALS CO LTD
Filing Date
2025-06-20
Publication Date
2026-07-14

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Abstract

The utility model discloses a kind of shortening tool of diamond wire cutting glass capillary, including line cutting bottom plate and line cutting mould, several bearing modules are equipped on line cutting bottom plate, the left and right sides of bearing module are equipped with the wire slot for diamond wire cutting machine's diamond cutting line to pass through, line cutting mould includes multiple clamps of upper and lower layer stacking, both ends of clamp are provided with connecting end, first positioning hole is opened in each connecting end and is vertically through, the region between two connecting end of the upper surface of clamp is uniformly spaced in front and back direction and is equipped with multiple V-shaped grooves, V-shaped groove extends along left and right direction, to be cut capillary is placed in V-shaped groove and is compressed tightly by upper clamp bottom and is limited, the both ends of bearing module are equipped with the second positioning hole corresponding with first positioning hole. Advantage is, this shortening tool integrates clamping, positioning and guiding cutting function, can realize the quick, non-destructive cutting of glass capillary, while batch cutting short glass capillary, shortening processing efficiency is high.
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Description

Technical Field

[0001] This utility model relates to the field of shortening and cutting glass capillaries, specifically to a cutting tool for diamond wire cutting capillaries. Background Technology

[0002] Traditional glass capillary cutting methods, such as abrasive wheel cutting or manual scribing, suffer from problems like burrs at the ends, uneven lengths, and low production efficiency. While diamond wire cutting offers high precision and effectively solves the burr problem, the lack of specialized tooling limits the number of capillaries that can be processed at once, resulting in frequent repetitive operations and low efficiency. Utility Model Content

[0003] This invention provides a cutting tool for diamond wire cutting capillary tubes, aiming to overcome at least to some extent the above-mentioned deficiencies in the prior art.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A cutting fixture for diamond wire cutting capillary tubes includes a wire cutting base plate and a wire cutting mold. The wire cutting base plate is detachably connected to the movable worktable of the diamond wire cutting machine. The wire cutting base plate is provided with several carrying modules. The left and right sides of the carrying modules are provided with wire routing grooves for the diamond cutting wire of the diamond wire cutting machine to pass through. Adjacent wire routing grooves are connected by connecting grooves extending forward and backward at one end. The wire cutting mold includes multiple clamping plates stacked on top of each other. The two ends of the clamping plates are provided with connecting ends. Each connecting end is provided with a first positioning hole that runs through from top to bottom. The upper surface of the clamping plate is provided with multiple V-shaped grooves evenly spaced in the front-back direction in the area between two connecting ends. The V-shaped grooves extend in the left-right direction. The capillary tube to be cut is placed in the V-shaped groove and pressed and limited by the bottom of the clamping plate immediately above. The two ends of the carrying module are provided with second positioning holes corresponding to the first positioning holes. The wire cutting mold is fixedly connected to the carrying module by positioning parts that are inserted into the first positioning holes and the second positioning holes respectively.

[0005] Based on the above technical solution, the present invention can be further improved as follows.

[0006] Furthermore, the connecting end includes a boss located on the upper surface of one end of the clamping plate and a groove located on the lower surface of one end of the clamping plate, with the boss of the lower clamping plate correspondingly engaging in the groove of the upper clamping plate adjacent to it.

[0007] Furthermore, the first positioning hole is located at the center of the boss.

[0008] Furthermore, the bottom surface of the clamping plate is provided with a flexible anti-slip pad.

[0009] Furthermore, each clamping plate is provided with 20-100 V-grooves, and each wire cutting die includes 2-10 clamping plates stacked on top of each other.

[0010] Furthermore, the width of the clamp in the left-right direction is 5-100mm, and the length of the clamp in the front-back direction is 5-20cm.

[0011] Furthermore, the positioning element is a bolt, screw, or retaining pin.

[0012] Furthermore, the wire cutting base plate is provided with multiple positioning screw holes around its perimeter, and the wire cutting base plate is detachably connected to the movable worktable by bolts provided in the positioning screw holes.

[0013] Furthermore, the wire-cutting base plate is provided with a total of 5 identical bearing modules that are evenly spaced in the left-right direction.

[0014] Furthermore, the width of the wiring groove is 2-5mm.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This cutting fixture integrates clamping, positioning, and guided cutting functions, enabling rapid and non-destructive cutting of glass capillaries. The clamping plates of the wire cutting die clamp and confine multiple glass capillaries to be cut in their respective V-grooves. The wire cutting die is fixed to the wire cutting base plate by positioning components. Subsequently, the diamond wire of the diamond wire cutting machine moves along the wire groove on the wire cutting base plate, completing the batch cutting and shortening of the clamped and confined glass capillaries. It has high efficiency in shortening capillaries, capable of cutting 50-5000 capillaries at a time. The wire cutting die can clamp and confine capillaries of different specifications, exhibiting strong adaptability. Attached Figure Description

[0017] Figure 1 Axonometric drawing of a diamond wire cutting glass capillary shortening fixture provided for this utility model;

[0018] Figure 2 for Figure 1 Axonometric view of the wire-cut bottom plate of the cutting tool shown;

[0019] Figure 3 for Figure 1 An isometric view of one of the clamps in the cutting tool shown.

[0020] Figure 4 for Figure 1 The image shows an isometric view of the anti-slip pad at the bottom of the clamping plate in the cutting tool.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Wire cutting base plate; 2. Wire cutting die;

[0023] 10. Bearing module; 11. Wiring channel; 12. Second positioning hole; 13. Positioning screw hole;

[0024] 20. Clamping plate; 21. First positioning hole; 22. V-groove; 23. Boss; 24. Groove; 25. Anti-slip pad. Detailed Implementation

[0025] The technical solution provided by this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] In the description of this utility model, if terms such as "upper", "lower", "left", "right", "top", "bottom", "inner", and "outer" are used to indicate the orientation or positional relationship, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings. 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.

[0027] like Figures 1 to 4 As shown, this utility model provides a cutting fixture for diamond wire-cut capillary tubes, including a wire-cutting base plate 1 and a wire-cutting mold 2. The wire-cutting base plate 1 is detachably connected to the movable worktable of the diamond wire cutting machine. The wire-cutting base plate 1 is provided with several supporting modules 10. The supporting modules 10 have wire-passing grooves 11 on their left and right sides for the diamond cutting wire of the diamond wire cutting machine to pass through. Adjacent wire-passing grooves 11 are connected by connecting grooves extending forward and backward at one end. The wire-cutting mold 2 includes multiple clamping plates 20 stacked on top of each other. The clamping plates 20 have connecting ends at both ends. The head has a first positioning hole 21 that runs vertically through it. The upper surface of the clamping plate 20 has a plurality of V-shaped grooves 22 evenly spaced in the front-back direction in the area between the two connecting ends. The V-shaped grooves 22 extend in the left-right direction. The capillary tube to be cut is placed in the V-shaped grooves 22 and pressed and limited by the lower surface of the clamping plate 20 above. The two ends of the carrying module 10 have second positioning holes 12 corresponding to the first positioning hole 21. The wire cutting die 2 is fixedly connected to the carrying module 10 by positioning members that are correspondingly inserted into the first positioning hole 21 and the second positioning hole 12.

[0028] It should be noted that when using this shortening fixture, depending on the specific requirements, only one of the carrier modules may be fixedly equipped with a corresponding wire cutting die, or multiple carrier modules may each be fixed with a corresponding wire cutting die. For example, when the capillary to be cut is relatively short, only enough to cut a standard length of target short tube, then only one wire cutting die needs to be fixed on the carrier module. This wire cutting die will clamp and limit the various capillary tubes of similar length to be cut. The two ends of each clamped capillary tube extend out from the two ends of the corresponding V-groove. The diamond cutting wire of the diamond cutting machine moves along the wire groove (note that it is a relative movement; it can be that the wire cutting base plate is stationary relative to the cutting machine while the cutting wire moves along the wire groove, or vice versa), so that the excess capillary tube segments extending from the left and right sides of the V-groove are cut off. The capillary tubes clamped in the V-groove are the required target short tubes. For example, when the capillary to be cut is relatively long, and one capillary can be cut into multiple target short tubes, multiple wire cutting dies can be fixed sequentially on the wire cutting base plate. The diamond cutting wire still moves along the wire groove, passing through both sides of the corresponding wire cutting die one by one, so that multiple batches of target short tubes can be obtained in one go (each wire cutting die contains one batch).

[0029] In one embodiment of this utility model, such as Figure 3 As shown, the connecting end includes a boss 23 on the upper surface of one end of the clamping plate 20 and a groove 24 on the lower surface of one end of the clamping plate 20. The boss 23 of the lower clamping plate 20 is correspondingly engaged in the groove 24 adjacent to the upper clamping plate 20.

[0030] It is understandable that the bosses and grooves of the upper and lower adjacent clamping plates match each other, and the upper and lower superimposed positioning is used to form a fast batch clamping limit for the capillary tubes to be cut. After the bosses are inserted into the grooves, the upper and lower adjacent clamping plates are also limited in the front and back direction. At the same time, the first positioning holes at both ends of each clamping plate are also accurately aligned, which facilitates the subsequent insertion and fixing of positioning parts.

[0031] In one embodiment of the present invention, the first positioning hole 21 is located at the center of the boss 23.

[0032] It is understandable that the positioning and fixing effect is best when the first positioning hole is located at the center of the boss, but if necessary, it can be appropriately deviated from the center of the boss.

[0033] In one embodiment of the present invention, the bottom surface of the clamping plate 20 is provided with a flexible anti-slip pad 25.

[0034] It should be noted that flexible anti-slip mats can be made of materials that are elastic and relatively soft, such as rubber and silicone, to avoid crushing the glass capillary tube.

[0035] In one embodiment of the present invention, each clamping plate 20 is provided with 20-100 V-grooves 22, and each wire cutting die 2 includes 2-10 clamping plates 20 stacked on top of each other.

[0036] It should be noted that the number of V-grooves on the clamp is not limited to the above data range. The V-grooves are grooves that open upwards, and the opening size is larger when it is closer to the upper opening, so it can be adapted to the cutting of glass capillaries of various diameters.

[0037] In one embodiment of this utility model, the width of the clamping plate 20 in the left-right direction is 5-100mm, and the length of the clamping plate 20 in the front-back direction is 5-20cm.

[0038] In one embodiment of this utility model, the positioning element is a bolt, screw, or fixing pin.

[0039] In one embodiment of the present invention, the periphery of the wire cutting base plate 1 is provided with a plurality of positioning screw holes 13, and the wire cutting base plate 1 is detachably connected to the movable worktable by bolts provided in the positioning screw holes 13.

[0040] In one embodiment of this utility model, the wire-cutting base plate 1 is provided with a total of 5 bearing modules 10 of the same size and evenly spaced in the left-right direction.

[0041] Understandably, the size of each carrier module on the same wire cutting base plate is usually set to the same size, which facilitates the batch cutting and production of glass capillary tubes of the same specifications. However, when needed, carrier modules of different sizes can also be set on the same wire cutting base plate so that target tubes of different lengths can be cut and produced at one time.

[0042] In one embodiment of this utility model, the width of the wiring groove 11 is 2-5mm.

[0043] Understandably, the width of the wiring channel should be 2-3 times or more than that of the diamond wire cutter, so that the diamond wire can move smoothly without colliding with or cutting the channel wall during wiring cutting.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cutting fixture for diamond wire-cut glass capillaries, characterized in that, The device includes a wire cutting base plate (1) and a wire cutting mold (2). The wire cutting base plate (1) is detachably connected to the movable worktable of the diamond wire cutting machine. The wire cutting base plate (1) is provided with several support modules (10). The support modules (10) are provided with wire routing grooves (11) on the left and right sides for the diamond cutting wire of the diamond wire cutting machine to pass through. Adjacent wire routing grooves (11) are connected by connecting grooves extending forward and backward at one end. The wire cutting mold (2) includes multiple clamping plates (20) stacked on top of each other. The clamping plates (20) are provided with connecting ends at both ends. Each connecting end is provided with a first positioning tool that runs through the machine from top to bottom. Hole (21), the area between the two connecting ends on the upper surface of the clamping plate (20) is provided with a plurality of V-shaped grooves (22) evenly spaced in the front-back direction. The V-shaped grooves (22) extend in the left-right direction. The capillary tube to be cut is placed in the V-shaped groove (22) and pressed and limited by the bottom of the clamping plate (20) above. The two ends of the bearing module (10) are provided with second positioning holes (12) corresponding to the first positioning hole (21). The wire cutting mold (2) is fixedly connected to the bearing module (10) by positioning members corresponding to the first positioning hole (21) and the second positioning hole (12).

2. The cutting fixture for diamond wire-cut glass capillaries according to claim 1, characterized in that, The connecting end includes a boss (23) on the upper surface of one end of the clamping plate (20) and a groove (24) on the lower surface of one end of the clamping plate (20). The boss (23) of the lower clamping plate (20) is engaged in the groove (24) of the upper clamping plate (20).

3. The cutting fixture for diamond wire-cut glass capillaries according to claim 2, characterized in that, The first positioning hole (21) is located at the center of the boss (23).

4. The cutting fixture for diamond wire-cut glass capillaries according to claim 1, characterized in that, The bottom surface of the clamp (20) is provided with a flexible anti-slip pad (25).

5. The cutting fixture for diamond wire-cut glass capillaries according to claim 1, characterized in that, Each clamping plate (20) is provided with 20-100 V-grooves (22), and each wire cutting die (2) includes 2-10 clamping plates (20) stacked on top of each other.

6. The cutting fixture for diamond wire-cut glass capillaries according to claim 1, characterized in that, The width of the clamp (20) in the left-right direction is 5-100mm, and the length of the clamp (20) in the front-back direction is 5-20cm.

7. The cutting fixture for diamond wire-cut glass capillaries according to claim 1, characterized in that, The positioning element is a bolt, screw, or retaining pin.

8. The cutting fixture for diamond wire-cut glass capillaries according to claim 1, characterized in that, The wire cutting base plate (1) is provided with a plurality of positioning screw holes (13) around its periphery. The wire cutting base plate (1) is detachably connected to the movable worktable by bolts provided in the positioning screw holes (13).

9. A cutting fixture for diamond wire-cut glass capillaries according to any one of claims 1 to 8, characterized in that, The line-cut base plate (1) has a total of 5 bearing modules (10) of the same size and evenly spaced in the left and right directions.

10. The cutting fixture for diamond wire-cut glass capillaries according to claim 9, characterized in that, The width of the wiring groove (11) is 2-5mm.