Positioning tool for high-precision capillary tube machining

By designing positioning fixtures for the clamping assembly, fastening assembly, and drive assembly, the problem of low multi-stage clamping efficiency caused by the long length of high-precision capillary tubing is solved, stable clamping and fastening are achieved, and processing efficiency and precision are improved.

CN223326341UActive Publication Date: 2025-09-12WUHU FENGRONG REFRIGERATION CO LTD
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Patent Information

Application Number
CN202422044811.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-22
Publication Date
2025-09-12
Estimated Expiration
2034-08-22

AI Technical Summary

Technical Problem

In the prior art, high-precision capillary tubing in applications such as air conditioners and refrigerators requires multi-stage clamping due to its long length, resulting in low processing efficiency.

Method used

A positioning tool is designed, which includes a clamping assembly, a fastening assembly and a driving assembly. The pipe is clamped by the sliding pressure plate and functional spring of the clamping assembly, and fastened by the threaded sleeve and fastening rubber pad of the fastening assembly. The forward and reverse motor of the driving assembly drives the movable support block to move to adapt to pipes of different lengths.

Benefits of technology

It achieves stable clamping and tightening of high-precision capillary tubes, improving processing efficiency and product positioning accuracy.

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Abstract

The utility model discloses a high-precision positioning tool for capillary tube processing, which relates to the technical field of capillary tube processing and comprises a working platform, a pair of fixed concave blocks are fixedly mounted at the top end of the working platform, a tube to be processed is arranged between the pair of fixed concave blocks, and a through groove is formed in the center of the working platform. The penetrating groove is formed between the pair of fixed concave blocks, a movable supporting block is movably arranged between the pair of fixed concave blocks, a plurality of rotating balls are rotationally installed at the top end of the movable supporting block, and the outer side walls of the rotating balls are attached to the outer side wall of the to-be-machined pipe. The clamping assembly is arranged, a sliding rod is pulled through a fixed handle and a sliding pressing plate, so that a limiting plate compresses a functional spring, a pipe to be machined is placed on a fixed concave plate, the fixed handle is loosened, and the sliding pressing plate is compressed downwards under the counter-acting force of the functional spring, so that the sliding pressing plate is attached to the outer side wall of the pipe to be machined; and clamping of the high-precision capillary tube is achieved.
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Description

Technical Field

[0001] The utility model relates to the technical field of capillary tube processing, in particular to a positioning tool for high-precision capillary tube processing. Background Art

[0002] High-precision capillary tubing typically refers to slender, tubular materials manufactured with extremely high precision in size, shape, and surface quality. The manufacture of high-precision capillary tubing typically involves precision drawing, grinding, and polishing processes to ensure uniform wall thickness, consistent inside and outside diameters, and a smooth, flawless surface. The material can be stainless steel, glass, quartz, polytetrafluoroethylene (PTFE), or other specialty alloys, depending on the application requirements. For example, applications requiring corrosion resistance and high-temperature stability might choose stainless steel or quartz, while applications requiring transparency and chemical inertness might use glass or PTFE.

[0003] Application number: CN202222040404.6 discloses a positioning tool for capillary tubing, comprising a base; a rotating base, the rear end plate of which is connected to the base and forms a rotating fit with the base, and the front end plate of which is installed with a limit seat; the limit seat, wherein a threading hole and a limit hole are provided in the limit seat, the limit hole is in front and the perforation is in the back, the aperture of the limit hole is larger than the aperture of the threading hole, and at least two light-through grooves are provided in the diameter of the limit hole, and the light-through grooves are connected to the limit hole; a clamping and tightening mechanism is provided on the rotating base and located at the rear side of the limit seat, the clamping and tightening mechanism tightens the capillary filament passing through the threading hole of the limit seat, so as to drive the front end of the hypotube to press the end cap against the bottom surface of the limit hole, and the laser beam is suitable for entering the limit hole from the light-through groove to weld the hypotube and the end cap. Through the positioning tool of the utility model, capillary tubing can be quickly disassembled and positioned, and efficient mass production of products can be achieved.

[0004] However, when the above device is used to clamp high-precision capillary tubing, the high-precision capillary tubing required for air conditioners or refrigerators is long and requires multi-stage clamping. Therefore, a positioning tool for processing high-precision capillary tubing is needed. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a high-precision positioning tool for processing capillary materials.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a positioning tool for high-precision capillary tube processing, comprising a working platform, a pair of fixed recessed blocks fixedly installed on the top of the working platform, a tube to be processed is arranged between the pair of fixed recessed blocks, a clamping assembly is arranged above the fixed recessed blocks, a through groove is opened in the center of the working platform, the through groove is arranged between the pair of fixed recessed blocks, a movable support block is movably arranged between the pair of fixed recessed blocks, a fastening assembly is arranged on the top of the movable support block, and a driving assembly for driving the pair of movable support blocks is arranged at the bottom of the working platform.

[0007] The top end face of said sliding panel also is provided with an interlocking structure, and the interlocking structure is pivotally connected to the upper end of said sliding panel and the interlocking structure is pivotally connected to a bottom end of said sliding panel.

[0008] Preferably, the fastening assembly includes an L-shaped mounting plate fixedly mounted on the outer side wall of the movable support block, the horizontal section of the L-shaped mounting plate is threaded with a threaded column, the bottom end of the threaded column is threadedly sleeved with a threaded sleeve, the bottom end of the threaded sleeve is fixedly mounted with a movable pressure plate, the bottom end of the movable pressure plate is fixedly mounted with a fastening rubber pad, and the top end of the threaded column is fixedly mounted with a rotating handle; it is used to fasten different positions of the pipe to be processed, the pipe to be processed is placed on the movable support block so that the outer side wall of the rotating ball fits with the outer side wall of the pipe to be processed, and the rotating handle is rotated to cause the threaded rod to rotate, thereby causing the threaded sleeve to push the movable pressure plate downward, and the fastening rubber pad fits with the outer side wall of the pipe to be processed, thereby achieving fastening of the pipe to be processed.

[0009] Preferably, the driving assembly includes a pair of fixed mounting blocks fixedly mounted on the bottom end of the working platform, a threaded rod rotatably mounted between the pair of fixed mounting blocks, a limiting rod fixedly mounted between the pair of fixed mounting blocks, a screw block threaded sleeve on the threaded rod, and the screw block sliding sleeve on the limit rod, a forward and reverse motor is fixedly mounted on the outer wall of the fixed mounting block, the output shaft of the forward and reverse motor is coaxially fixedly connected to the threaded rod, a connecting block is fixedly mounted on the top of the screw block, the connecting block is slidably set in the through groove, and the connecting block is fixedly mounted on the bottom end of the movable support block; preferably, it is used to move the position of the movable support block, start the forward and reverse motor, the threaded rod rotates, causing the screw block to reciprocate, and the screw block drives the movable support block to move through the connecting block, and at this time the connecting block slides in the through groove.

[0010] A plurality of rotating balls are rotatably mounted on the top of the movable support block, and the outer side walls of the rotating balls fit the outer side walls of the pipe to be processed, so as to ensure the smooth movement of the pipe to be processed.

[0011] The utility model has the following beneficial effects: 1. By setting a clamping assembly, the sliding rod is pulled by the fixed handle and the sliding pressure plate, so that the limit plate compresses the functional spring, the pipe to be processed is placed on the fixed concave plate, the fixed handle is released, and the sliding pressure plate is compressed downward under the reaction force of the functional spring, so that it fits with the outer wall of the pipe to be processed, thereby achieving clamping of high-precision capillary pipes.

[0012] 2. By setting up the fastening assembly, the pipe to be processed is placed on the movable support block so that the outer wall of the rotating ball fits with the outer wall of the pipe to be processed. The rotating handle is rotated to rotate the threaded rod, and then the threaded sleeve pushes the movable pressure plate downward, and the fastening rubber pad fits with the outer wall of the pipe to be processed, thereby achieving the fastening of the pipe to be processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the external structure of a positioning tool for high-precision capillary tube processing proposed by the present invention;

[0014] Figure 2 This is a schematic structural diagram of the clamping assembly of the utility model;

[0015] Figure 3 This is a schematic structural diagram of the fastening assembly of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the drive assembly of the utility model.

[0017] In the figure: 1. Working platform; 2. Fixed concave block; 3. Pipe to be processed; 4. Clamping assembly; 41. Fixed concave plate; 42. Horizontal plate; 43. Sliding pressure plate; 44. Sliding rod; 45. Limiting plate; 46. Functional spring; 47. Pressing rubber pad; 48. Fixed handle; 5. Through slot; 6. Movable support block; 61. Rotating ball; 7. Fastening assembly; 71. L-shaped mounting plate; 72. Threaded column; 73. Threaded sleeve; 74. Movable pressure plate; 75. Fastening rubber pad; 76. Rotating handle; 8. Driving assembly; 81. Fixed mounting block; 82. Threaded rod; 83. Limiting rod; 84. Screw block; 85. Forward and reverse motor; 86. Connecting block. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0020] Reference Figure 1-4 A positioning tool for processing high-precision capillary tubes includes a working platform 1, a pair of fixed recessed blocks 2 are fixedly installed on the top of the working platform 1, a tube 3 to be processed is arranged between the pair of fixed recessed blocks 2, a clamping component 4 is arranged above the fixed recessed blocks 2, a through groove 5 is opened in the center of the working platform 1, the through groove 5 is arranged between the pair of fixed recessed blocks 2, a movable support block 6 is movably arranged between the pair of fixed recessed blocks 2, a fastening component 7 is arranged on the top of the movable support block 6, and a driving component 8 for driving the pair of movable support blocks 6 is arranged at the bottom of the working platform 1.

[0021] The clamping assembly 4 includes a fixed concave plate 41 fixedly installed on the top of the fixed concave block 2, and horizontal plates 42 are integrated at both ends of the fixed concave plate 41. A sliding pressure plate 43 is movably provided above the fixed concave plate 41, and a pair of sliding rods 44 are fixedly installed at the bottom end of the sliding pressure plate 43. The sliding rods 44 slide through the horizontal plate 42.

[0022] A limit plate 45 is fixedly installed at the bottom end of the sliding rod 44, and a functional spring 46 is sleeved on the sliding rod 44. The functional spring 46 is elastically connected between the bottom end of the horizontal plate 42 and the top end of the limit plate 45. A clamping rubber pad 47 is fixedly installed at the center of the bottom end of the sliding pressure plate 43, and a fixed handle 48 is fixedly installed at the top end of the sliding pressure plate 43.

[0023] The fastening assembly 7 includes an L-shaped mounting plate 71 fixedly mounted on the outer wall of the movable support block 6, a threaded column 72 is threaded through the horizontal section of the L-shaped mounting plate 71, a threaded sleeve 73 is threadedly sleeved on the bottom end of the threaded column 72, a movable pressure plate 74 is fixedly mounted on the bottom end of the threaded sleeve 73, a fastening rubber pad 75 is fixedly mounted on the bottom end of the movable pressure plate 74, and a rotating handle 76 is fixedly mounted on the top end of the threaded column 72.

[0024] The driving assembly 8 includes a pair of fixed mounting blocks 81 fixedly mounted on the bottom end of the working platform 1, a threaded rod 82 is rotatably mounted between the pair of fixed mounting blocks 81, a limiting rod 83 is fixedly mounted between the pair of fixed mounting blocks 81, a screw block 84 is threadedly sleeved on the threaded rod 82, and the screw block 84 is slidably sleeved on the limiting rod 83, a forward and reverse motor 85 is fixedly mounted on the outer wall of the fixed mounting block 81, the output shaft of the forward and reverse motor 85 is coaxially fixedly connected to the threaded rod 82, a connecting block 86 is fixedly mounted on the top of the screw block 84, the connecting block 86 is slidably set in the through groove 5, and the connecting block 86 is fixedly mounted on the bottom end of the movable support block 6.

[0025] A plurality of rotating balls 61 are rotatably mounted on the top of the movable support block 6 , and the outer side walls of the rotating balls 61 are in contact with the outer side walls of the pipe 3 to be processed.

[0026] In the present invention, the sliding rod 44 is pulled by the fixed handle 48 and the sliding pressure plate 43, so that the limit plate 45 compresses the functional spring 46, and the pipe 3 to be processed is placed on the fixed concave plate 41. The fixed handle 48 is released, and the sliding pressure plate 43 is compressed downward under the reaction force of the functional spring 46, so that 47 fits the outer wall of the pipe 3 to be processed, thereby achieving the clamping of the high-precision capillary pipe. The forward and reverse motor 85 is started, and the threaded rod 82 rotates, so that the screw block 84 moves back and forth. The screw block 84 passes The connecting block 86 drives the movable supporting block 6 to move. At this time, the connecting block 86 slides in the through groove 5. After the movable supporting block 6 moves to a suitable position, the pipe 3 to be processed is placed on the movable supporting block 6, so that the outer wall of the rotating ball 61 fits with the outer wall of the pipe 3 to be processed. The rotating handle 76 is rotated to rotate the threaded rod 82, and then the threaded sleeve 73 pushes the movable pressure plate 74 to move downward, and the fastening rubber pad 75 fits with the outer wall of the pipe 3 to be processed, thereby fastening the pipe 3 to be processed.

[0027] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A positioning tool for high-precision capillary tube processing, comprising a working platform (1), characterized in that: A pair of fixed recessed blocks (2) are fixedly installed on the top of the working platform (1), a pipe to be processed (3) is arranged between the pair of fixed recessed blocks (2), a clamping assembly (4) is arranged above the fixed recessed blocks (2), a through groove (5) is opened in the center of the working platform (1), the through groove (5) is arranged between the pair of fixed recessed blocks (2), a movable support block (6) is movably arranged between the pair of fixed recessed blocks (2), a fastening assembly (7) is arranged at the top of the movable support block (6), and a driving assembly (8) for driving the pair of movable support blocks (6) is arranged at the bottom of the working platform (1).

2. The positioning tool for high-precision capillary tube processing according to claim 1, characterized in that: The clamping assembly (4) comprises a fixed concave plate (41) fixedly mounted on the top of the fixed concave block (2), horizontal plates (42) being integrally provided at both ends of the fixed concave plate (41), a sliding pressure plate (43) being movably provided above the fixed concave plate (41), a pair of sliding rods (44) being fixedly mounted at the bottom end of the sliding pressure plate (43), and the sliding rods (44) slidingly passing through the horizontal plate (42).

3. The positioning tool for high-precision capillary tube processing according to claim 2, characterized in that: The bottom end of the sliding rod (44) is fixedly mounted with a limit plate (45), and a functional spring (46) is sleeved on the sliding rod (44). The functional spring (46) is elastically connected between the bottom end of the horizontal plate (42) and the top end of the limit plate (45). A pressing rubber pad (47) is fixedly mounted at the center of the bottom end of the sliding pressure plate (43), and a fixed handle (48) is fixedly mounted on the top end of the sliding pressure plate (43).

4. The positioning tool for high-precision capillary tube processing according to claim 1, characterized in that: The fastening assembly (7) comprises an L-shaped mounting plate (71) fixedly mounted on the outer side wall of the movable support block (6); a threaded column (72) is threadedly penetrated through the horizontal section of the L-shaped mounting plate (71); a threaded sleeve (73) is threadedly sleeved on the bottom end of the threaded column (72); a movable pressure plate (74) is fixedly mounted on the bottom end of the threaded sleeve (73); a fastening rubber pad (75) is fixedly mounted on the bottom end of the movable pressure plate (74); and a rotating handle (76) is fixedly mounted on the top end of the threaded column (72).

5. The positioning tool for high-precision capillary tube processing according to claim 1, characterized in that: The driving assembly (8) includes a pair of fixed mounting blocks (81) fixedly mounted on the bottom end of the working platform (1), a threaded rod (82) is rotatably mounted between the pair of fixed mounting blocks (81), a limiting rod (83) is fixedly mounted between the pair of fixed mounting blocks (81), a screw block (84) is threadedly sleeved on the threaded rod (82), and the screw block (84) is slidably sleeved on the limiting rod (83), a forward and reverse motor (85) is fixedly mounted on the outer wall of the fixed mounting block (81), an output shaft of the forward and reverse motor (85) is coaxially fixedly connected to the threaded rod (82), a connecting block (86) is fixedly mounted on the top end of the screw block (84), the connecting block (86) is slidably set in the through groove (5), and the connecting block (86) is fixedly mounted on the bottom end of the movable support block (6).

6. The positioning tool for high-precision capillary tube processing according to claim 1, characterized in that: A plurality of rotating balls (61) are rotatably mounted on the top of the movable support block (6), and the outer side walls of the rotating balls (61) are in contact with the outer side walls of the pipe (3) to be processed.

Citation Information

Patent Citations

  • Positioning tool for capillary tube

    CN217889916U