A device for precision polishing of inner and outer cavities of a capillary of hard and brittle material

Abstract

The application discloses a kind of hard brittle material capillary inner and outer cavity precision polishing equipment, it is related to capillary inner and outer cavity polishing technical field, to solve the problem that existing hard brittle material capillary polishing device cannot be fully positioned polishing to different size capillary, its technical scheme main points are including workbench, the mobile clamp is movably connected in workbench upper end, mobile adjusting mechanism that mobile clamp is driven is arranged between mobile clamp and workbench, the fixed plate is fixedly connected in mobile clamp upper end, the installation sleeve pipe is rotatably connected in fixed plate interior, the fixed screw is threadedly connected in installation sleeve pipe side wall, the installation column is fixedly connected in workbench upper end, the polishing mechanism for capillary inner and outer cavity polishing is detachably connected in installation column one end.The effect of fully polishing, efficient polishing and multi-specification capillary adjusting polishing is achieved.

Description

Technical Field

[0001] This invention relates to the field of capillary inner and outer cavity polishing technology, and in particular to a device for precision polishing of the inner and outer cavities of capillary tubes made of hard and brittle materials. Background Technology

[0002] Capillary tubes generally refer to thin tubes with an inner diameter equal to or less than 1 mm. They are called capillaries because their diameter is as thin as a hair. Capillary tubes are generally used in small Freon refrigeration devices with a power of less than 20 kW. Capillary electrochromatography is a new type of micro-separation analysis technology that integrates the advantages of capillary electrophoresis and micro-column liquid chromatography. By applying a DC high-voltage electric field to both ends of a micro-column filled with micro-particle liquid chromatography packing material, it achieves its superior separation capability for trace complex biological and chemical system samples.

[0003] Chinese Patent CN215789057U discloses a fixing device for capillary polishing. By setting a limiting device, when needed, pushing a control block to one side causes the drive wheel and rotating rod to rotate. The rotating rod then rotates the limiting rod, causing a torsion spring to deform and generate elastic force. Pressing the limiting block closer to the placement block causes a compression spring to deform and generate elastic force. When it moves to a certain position, releasing the control rod releases the torsion spring's elastic force, allowing the limiting rod to insert into the limiting sleeve, thus completing the use. To open, push the control block. The control block drives the drive wheel and rotating rod to rotate. The rotating rod drives the limit rod to rotate. The torsion spring deforms under force, generating elastic force, causing the limit rod to lose its restraint on the limit sleeve. The compression spring releases the elastic force, thus completing the opening. By setting a limit device, it is easy to limit the equipment, thereby avoiding the phenomenon of squeezing and deforming the equipment when the equipment is clamped and fixed by bolts and clamps during grinding, which is easy to cause the equipment to be squeezed and deformed, and also avoids the inconvenience of operation. This reduces the probability of material damage and improves the ease of use of the equipment.

[0004] The existing technical solutions mentioned above have the following drawbacks: the existing capillary polishing devices for hard and brittle materials cannot perform sufficient positioning and polishing of capillaries of different sizes. At the same time, during the overall polishing process, only the outer surface or the inner surface can be fully polished, which reduces the overall processing efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a device for precision polishing of the inner and outer cavities of capillaries of hard and brittle materials that is easy to operate and will not cause injury to operators during the feeding process while the machine is running.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A device for precision polishing of the inner and outer cavities of capillaries made of hard and brittle materials includes a worktable. A movable clamp is movably connected to the upper end of the worktable. A moving adjustment mechanism for driving the movable clamp is provided between the movable clamp and the worktable. A fixed plate is fixedly connected to the upper end of the movable clamp. An installation sleeve is rotatably connected inside the fixed plate. A rotating mechanism for driving the installation sleeve to rotate is provided at the upper end of the movable clamp. A fixing screw is threaded to the side wall of the installation sleeve. An installation column is fixedly connected to the upper end of the worktable. A polishing mechanism for polishing the inner and outer cavities of the capillary is detachably connected to one end of the installation column.

[0008] By adopting the above technical solution, the moving adjustment mechanism can drive the moving fixture to move laterally, and at the same time, during the overall movement, the rotating mechanism drives the capillary to rotate, ensuring that the capillary is fully rotated and polished, thus increasing the overall polishing effect.

[0009] Furthermore, the movable adjustment mechanism includes a drive motor fixed to the side wall of the worktable. The output end of the drive motor extends through the side wall of the worktable into the interior of the worktable. The output end of the drive motor is fixedly connected to a lead screw body. A lead screw slider adapted to the lead screw body is movably connected to the outside of the lead screw body. The upper end of the lead screw slider is fixedly connected to the lower end of the movable clamp.

[0010] By adopting the above technical solution, the drive motor can drive the lead screw body to rotate, and the lead screw body can drive the lead screw slider to move during the rotation, thereby ensuring a good overall moving polishing effect.

[0011] Furthermore, the rotating mechanism includes a rotary motor fixed to the upper end of the moving clamp. The output end of the rotary motor is fixedly connected to a drive wheel, and a belt is movably connected to the outside of the drive wheel. A driven wheel is fixedly connected to the outside of the mounting sleeve. The driven wheel is movably connected to the belt, and the drive wheel is movably connected to the driven wheel via the belt.

[0012] By adopting the above technical solution, the rotary motor drives the drive wheel to rotate, and during the rotation of the drive wheel, the driven wheel is driven to rotate through the belt, ensuring that the capillary maintains a rotating state during the movement, thereby increasing the overall polishing effect.

[0013] Furthermore, the mounting sleeve is a hollow cylindrical structure with a sealed bottom end, and two sets of fixing screws are symmetrically distributed about the center line of the mounting sleeve, with a protective pad fixedly connected to the inner side of the fixing screw.

[0014] By adopting the above technical solution, the fixing screw can be fixed to the capillary tube by the protective pad for full positioning, which facilitates the full positioning, movement and rotation of capillary tubes with different outer diameters, and ensures good positioning and rotation effect of the whole.

[0015] Furthermore, the polishing mechanism includes an installation frame, on the side of the installation frame near the moving clamp a fixedly connected inner wall cleaning brush assembly for cleaning the inner wall, and a fixed frame is fixedly connected on the side of the installation frame near the moving clamp, the fixed frame being located outside the inner wall cleaning brush assembly.

[0016] By adopting the above technical solution, the inner wall cleaning brush assembly can be inserted into the capillary during the overall insertion process, ensuring that the capillary can be fully polished during the overall movement and rotation.

[0017] Furthermore, the inner wall cleaning brush assembly includes a hollow positioning post, a movable block is movably connected inside the positioning post, a brush plate is fixedly connected to the outside of the movable block, a rotating positioning component for positioning the movable block is detachably connected inside the positioning post, a threaded connecting sleeve is fixedly connected to the bottom inside the positioning post, and a threaded connecting post is fixedly connected to the side of the rotating positioning component near the threaded connecting sleeve, the threaded connecting post being adapted to the threaded connecting sleeve.

[0018] By adopting the above technical solution, the threaded connecting column and the threaded connecting sleeve can be easily installed and disassembled, which in turn facilitates the installation and disassembly of the rotating positioning component. This allows for easy adjustment based on the inner wall condition of the capillary made of hard and brittle materials, ensuring that the overall brush plate opening can be adjusted according to actual conditions, thus increasing overall flexibility.

[0019] Furthermore, a limiting sleeve is fixedly connected to the side of the rotating positioning component away from the threaded connecting sleeve. The limiting sleeve is located outside the threaded connecting post. A docking rod is fixedly connected to the outside of the movable block. The side of the docking rod away from the movable block is fixedly connected to the brush plate. The brush plate, docking rod, and movable block are distributed in three sets at equal intervals in a ring around the center line of the positioning insert.

[0020] By adopting the above technical solution, the limiting sleeve can work with the rotating positioning component to position the movable block, ensuring the good stability of the brush plate after the movable block is inserted into the rotating positioning component, thereby facilitating thorough cleaning of the inside of the capillary of hard and brittle materials.

[0021] Furthermore, the outer wall of the positioning pin is provided with a limiting groove for the docking rod to move. The limiting groove is adapted to the shape and size of the docking rod. The movable block is a right-angled triangular structure. When the movable block and the rotating positioning component are in contact with each other, the side of the movable block away from the rotating positioning component is in contact with the inner side of the limiting sleeve.

[0022] By adopting the above technical solution, after the right-angled triangular movable block is inserted into the rotating positioning component, one end of the movable block is in contact with the inner side of the limiting sleeve, and the other end is in contact with the rotating positioning component. This ensures that different rotating positioning components can form brush plates in different states, thus facilitating thorough cleaning of capillaries of hard and brittle materials with different inner diameters.

[0023] Furthermore, an adjusting cylinder is fixedly connected to the outside of the fixed frame. The movable end of the adjusting cylinder extends through the outside of the fixed frame to the inside of the fixed frame. An outer wall cleaning brush is fixedly connected to the movable end of the adjusting cylinder. Four sets of adjusting cylinders are evenly distributed in a ring about the center line of the fixed frame.

[0024] By adopting the above technical solution, the installation spring can drive the spring clip to fully engage with the positioning clip hole, thereby facilitating the replacement of the polishing mechanism and increasing overall flexibility.

[0025] Furthermore, a plug-in block is fixedly connected to the side of the mounting column near the mounting frame, and a spring latch is movably connected inside the plug-in block. The mounting frame has a plug-in groove that matches the plug-in block, and the outer wall of the mounting frame has a positioning hole that communicates with the plug-in groove. The positioning hole matches the spring latch.

[0026] By adopting the above technical solution, the installation spring can drive the spring clip to fully engage with the positioning clip hole, thereby facilitating the replacement of the polishing mechanism and increasing overall flexibility.

[0027] Furthermore, the plug block has an internal mounting groove for the spring latch to move, and a mounting spring is fixedly connected inside the mounting groove. The side of the mounting spring away from the mounting groove is fixedly connected to the spring latch. The mounting post overlaps with the horizontal center line of the moving clamp, and the spring latch is distributed correspondingly with the positioning holes.

[0028] By adopting the above technical solution, the moving fixture can drive the capillary to move, ensuring a good overall moving polishing effect, and facilitating sufficient polishing of the inner and outer walls of the capillary, thereby increasing the overall polishing effect.

[0029] In summary, the beneficial technical effects of the present invention are as follows:

[0030] 1. This invention uses a movable adjustment mechanism to drive a rotatable mounting sleeve to move fully, ensuring that the whole can move and rotate fully during the polishing process, thereby increasing the overall moving polishing effect and polishing the inner and outer walls at the same time, achieving a thorough polishing effect.

[0031] 2. This invention uses an inner wall cleaning brush and an outer wall cleaning brush to fully polish the inner and outer walls of the capillary, increasing the overall polishing effect. Furthermore, the polishing of the inner and outer walls is carried out simultaneously, improving the overall polishing efficiency and achieving a highly efficient polishing effect.

[0032] 3. This invention uses an adjustable cylinder to drive the outer wall cleaning brush to fully adhere to and polish the outer wall of the capillary. The polishing mechanism is easy to install and disassemble, thus facilitating overall adjustment and polishing according to different capillary sizes, achieving the effect of adjusting and polishing capillary sizes. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 This is a three-dimensional structural diagram of the movable adjustment mechanism of the present invention;

[0035] Figure 3 This is a three-dimensional structural diagram of the rotating mechanism of the present invention;

[0036] Figure 4 This is a schematic diagram of the disassembled structure of the polishing mechanism of the present invention;

[0037] Figure 5 This is a schematic diagram of the side structure of the polishing mechanism of the present invention;

[0038] Figure 6 This is a schematic diagram of the disassembled spring-loaded button structure of the present invention;

[0039] Figure 7 This is a schematic diagram of the disassembled structure of the inner wall cleaning brush assembly of the present invention;

[0040] Figure 8 This is a schematic diagram of the internal structure of the inner wall cleaning brush assembly of the present invention.

[0041] In the diagram: 1. Worktable; 2. Moving fixture; 3. Moving adjustment mechanism; 4. Fixed plate; 5. Mounting sleeve; 6. Rotating mechanism; 7. Fixing screw; 8. Mounting column; 9. Polishing mechanism; 31. Drive motor; 32. Lead screw body; 33. Lead screw slider; 61. Rotary motor; 62. Drive wheel; 63. Belt; 64. Driven wheel; 71. Protective pad; 81. Insertion block; 82. Spring latch; 83. Mounting slot; 84. Mounting 91. Spring; 92. Mounting frame; 93. Inner wall cleaning brush assembly; 94. Fixed frame; 95. Adjusting cylinder; 96. Outer wall cleaning brush; 97. Insertion slot; 98. Positioning hole; 9201. Positioning pin; 9202. Movable block; 9203. Brush plate; 9204. Rotary positioning component; 9205. Threaded connecting sleeve; 9206. Threaded connecting post; 9207. Limiting sleeve; 9208. Connecting rod; 9209. Limiting groove. Detailed Implementation

[0042] The present invention will be further described in detail below with reference to the accompanying drawings.

[0043] Reference Figure 1 A device for precision polishing of the inner and outer cavities of capillaries made of hard and brittle materials includes a worktable 1, a movable clamp 2 movably connected to the upper end of the worktable 1, a moving adjustment mechanism 3 for driving the movable clamp 2 between the movable clamp 2 and the worktable 1, a fixed plate fixedly connected to the upper end of the movable clamp 2, an installation sleeve rotatably connected inside the fixed plate, a rotating mechanism 6 for driving the installation sleeve to rotate at the upper end of the movable clamp 2, a fixing screw 7 threadedly connected to the side wall of the installation sleeve, and an installation column 8 fixedly connected to the upper end of the worktable 1. One end of the installation column 8 is detachably connected to a polishing mechanism 9 for polishing the inner and outer cavities of the capillary. The entire device uses the polishing mechanism 9 to fully polish the inner and outer cavities of the hard and brittle material capillary, ensuring a good overall polishing effect.

[0044] Reference Figure 2 The movable adjustment mechanism 3 includes a drive motor 31 fixed to the side wall of the worktable 1. The output end of the drive motor 31 extends through the side wall of the worktable 1 into the interior of the worktable 1. The output end of the drive motor 31 is fixedly connected to a lead screw body 32. A lead screw slider 33 adapted to the lead screw body 32 is movably connected to the outside of the lead screw body 32. The upper end of the lead screw slider 33 is fixedly connected to the lower end of the movable clamp 2. During the rotation of the lead screw body 32, the lead screw slider 33 is driven to move, thereby ensuring that the whole can move laterally repeatedly during the polishing process, which increases the overall polishing effect. The mounting sleeve 5 is a hollow cylindrical structure with a sealed bottom. There are two sets of fixing screws 7 symmetrically distributed about the center line of the mounting sleeve 5. A protective pad 71 is fixedly connected to the inside of the fixing screws 7. The protective pad 71 can reduce the damage to the capillary and ensure good installation stability of the capillary.

[0045] Reference Figure 3 The rotating mechanism 6 includes a rotary motor 61 fixed to the upper end of the movable clamp 2. The output end of the rotary motor 61 is fixedly connected to a drive wheel 62. A belt 63 is movably connected to the outside of the drive wheel 62. A driven wheel 64 is fixedly connected to the outside of the mounting sleeve 5. The driven wheel 64 is movably connected to the belt 63. The drive wheel 62 is movably connected to the driven wheel 64 through the belt 63. The drive wheel 62 and the driven wheel 64 have the same specifications, which facilitates the rotary motor 61 to drive the mounting sleeve 5 to rotate inside the fixed plate 4, ensuring a good overall rotary polishing effect.

[0046] Reference Figure 4 and Figure 5The polishing mechanism 9 includes a mounting frame 91. An inner wall cleaning brush assembly 92 is fixedly connected to the side of the mounting frame 91 closest to the moving clamp 2. A fixed frame 93 is also fixedly connected to the side of the mounting frame 91 closest to the moving clamp 2. The fixed frame 93 is located outside the inner wall cleaning brush assembly 92. The inner wall cleaning brush assembly 92 is adapted to the shape and size of the capillary inner wall and can be replaced, thus facilitating overall adjustment according to the capillary condition. An adjusting cylinder 94 is fixedly connected to the outside of the fixed frame 93. The movable end of the adjusting cylinder 94... Extending from the outside of the fixed frame 93 to the inside of the fixed frame 93, the movable end of the adjusting cylinder 94 is fixedly connected to the outer wall cleaning brush 95. The adjusting cylinder 94 can drive the outer wall cleaning brush 95 to fit against the capillary, ensuring a good overall fit and polishing effect. There are four sets of adjusting cylinders 94 distributed at equal intervals in a ring about the center line of the fixed frame 93. The adjusting cylinders 94 distributed at equal intervals in a ring about the center line of the fixed frame 93 can fit and polish the outer wall cleaning brush 95 against the outer surface of the capillary, increasing the overall polishing effect.

[0047] Reference Figure 7 and Figure 8The inner wall cleaning brush assembly 92 includes a hollow positioning post 9201. A movable block 9202 is movably connected inside the positioning post 9201. A brush plate 9203 is fixedly connected to the outer side of the movable block 9202. A rotating positioning component 9204 for positioning the movable block 9202 is detachably connected inside the positioning post 9201. A threaded connecting sleeve 9205 is fixedly connected to the bottom end of the positioning post 9201. A threaded connecting post 9206 is fixedly connected to the side of the rotating positioning component 9204 near the threaded connecting sleeve 9205. The threaded connecting post 9206 is connected to the threaded connecting sleeve 9205. The threaded connecting post 9206 and the threaded connecting sleeve 9205 are compatible and can be easily connected, thus facilitating the installation of the rotating positioning component 9204. During the installation of the rotating positioning component 9204, it fully abuts against the movable block 9202, thereby fixing the brush plate 9203 and ensuring a good rotating cleaning effect for the brush plate 9203. The side of the rotating positioning component 9204 away from the threaded connecting sleeve 9205 is fixedly connected to the limiting sleeve 9207, which is located on the outside of the threaded connecting post 9206. The outside of the movable block 9202 is fixedly connected to... A connecting rod 9208 is provided. The side of the connecting rod 9208 away from the movable block 9202 is fixedly connected to the brush plate 9203. The brush plate 9203, the connecting rod 9208, and the movable block 9202 are distributed in three sets at equal intervals in a ring around the center line of the positioning pin 9201. These three sets of brush plates 9203, connecting rods 9208, and movable block 9202 can form a circular cleaning brush, increasing the overall rotational cleaning effect. The outer wall of the positioning pin 9201 has a limiting feature to allow the connecting rod 9208 to move. The groove 9209 and the limiting groove 9209 are adapted to the shape and size of the connecting rod 9208. The movable block 9202 has a right-angled triangular structure. When the movable block 9202 and the rotating positioning component 9204 are in contact with each other, the side of the movable block 9202 away from the rotating positioning component 9204 is in contact with the inner side of the limiting sleeve 9207. The rotating positioning component 9204 and the limiting sleeve 9207 can fully resist the movable block 9202. At the same time, the rotating positioning component 9204 is easy to disassemble and replace, which makes it easy to adjust the opening degree of the three sets of brush plates 9203 and increases the overall flexibility.

[0048] Reference Figure 6A plug-in block 81 is fixedly connected to the side of the mounting column 8 near the mounting frame 91. A spring-loaded latch 82 is movably connected inside the plug-in block 81. The mounting frame 91 has a plug-in groove 96 that matches the plug-in block 81. The outer wall of the mounting frame 91 has a positioning hole 97 that communicates with the plug-in groove 96. The positioning hole 97 matches the spring-loaded latch 82, allowing the spring-loaded latch 82 to fully engage with the positioning hole 97. This facilitates the installation and removal of the mounting frame 91, and makes it easy to replace the inner wall cleaning brush assembly 92, thus improving the overall performance. For flexibility, the plug-in block 81 has an internal mounting groove 83 for the spring latch 82 to move. A mounting spring 84 is fixedly connected inside the mounting groove 83. The side of the mounting spring 84 away from the mounting groove 83 is fixedly connected to the spring latch 82. The mounting spring 84 can drive the spring latch 82 to fully engage with the positioning hole 97, which facilitates the installation and removal of the inner wall cleaning brush assembly 92 and the outer wall cleaning brush 95. The horizontal center line of the mounting column 8 overlaps with that of the moving clamp 2, and the spring latch 82 and the positioning hole 97 are correspondingly distributed to ensure a good overall installation effect.

[0049] Working principle: First, the capillary tube is inserted into the installation sleeve 5. Simultaneously, the fixing screw 7 tightens the protective pad 71 against the outer wall of the capillary tube, positioning it. At the same time, four sets of adjusting cylinders 94, evenly spaced in a ring around the center line of the fixing frame 93, move the outer wall cleaning brush 95 to fit against the outer wall of the capillary tube. Simultaneously, the threaded connecting post 9206 aligns with the threaded connecting sleeve 9205, facilitating the installation of the rotating positioning component 9204. During the installation of the rotating positioning component 9204, the movable block 9202... The rotating positioning component 9204 and the limiting sleeve 9207 fully engage with each other, thereby fixing the brush plate 9203 and ensuring a good rotational cleaning effect of the brush plate 9203. During the overall polishing process, the rotary motor 61 drives the drive wheel 62 to rotate, and the drive wheel 62 drives the driven wheel 64 to rotate through the belt 63. At the same time, the drive motor 31 drives the lead screw body 32 to rotate, and the lead screw body 32 drives the lead screw slider 33 to move laterally, thereby completing the full polishing of the inner and outer walls of the capillary.

[0050] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A device for precision polishing of the inner and outer cavities of capillary tubes made of hard and brittle materials, comprising a worktable (1), characterized in that: The upper end of the worktable (1) is movably connected to a movable clamp (2). A moving adjustment mechanism (3) for driving the movable clamp (2) is provided between the movable clamp (2) and the worktable (1). A fixed plate is fixedly connected to the upper end of the movable clamp (2). An installation sleeve is rotatably connected inside the fixed plate. A rotating mechanism (6) for driving the installation sleeve to rotate is provided at the upper end of the movable clamp (2). A fixing screw (7) is threadedly connected to the side wall of the installation sleeve (5). An installation column (8) is fixedly connected to the upper end of the worktable (1). A polishing mechanism (9) for polishing the inner and outer cavities of the capillary is detachably connected to one end of the installation column (8). The polishing mechanism (9) includes an installation frame (91) inside. An inner wall cleaning brush assembly (92) for cleaning the inner wall is fixedly connected to the side of the installation frame (91) near the moving clamp (2). A fixed frame (93) is fixedly connected to the side of the installation frame (91) near the moving clamp (2). The fixed frame (93) is located outside the inner wall cleaning brush assembly (92). The inner wall cleaning brush assembly (92) includes a hollow positioning post (9201) inside. A movable block (9202) is movably connected inside the positioning post (9201). A brush plate (9203) is fixedly connected to the outside of the movable block (9202). A rotating positioning component (9204) for positioning the movable block (9202) is detachably connected inside the positioning post (9201). A threaded connecting sleeve (9205) is fixedly connected to the bottom inside the positioning post (9201). A threaded connecting post (9206) is fixedly connected to the side of the rotating positioning component (9204) near the threaded connecting sleeve (9205). The threaded connecting post (9206) is adapted to the threaded connecting sleeve (9205). The rotating positioning component (9204) is fixedly connected to a limiting sleeve (9207) on the side away from the threaded connecting sleeve (9205). The limiting sleeve (9207) is located outside the threaded connecting post (9206). A connecting rod (9208) is fixedly connected to the outside of the movable block (9202). The side of the connecting rod (9208) away from the movable block (9202) is fixedly connected to the brush plate (9203). The brush plate (9203), the connecting rod (9208), and the movable block (9202) correspond to the positioning post (9206). 201) Three sets of circular center lines are evenly spaced; the outer wall of the positioning pin (9201) is provided with a limiting groove (9209) for the docking rod (9208) to move. The limiting groove (9209) is adapted to the shape and size of the docking rod (9208). The movable block (9202) is a right-angled triangle structure. When the movable block (9202) and the rotating positioning component (9204) are in contact with each other, the side of the movable block (9202) away from the rotating positioning component (9204) is in contact with the inner side of the limiting sleeve (9207). An adjusting cylinder (94) is fixedly connected to the outside of the fixed frame (93). The movable end of the adjusting cylinder (94) extends through the outside of the fixed frame (93) to the inside of the fixed frame (93). An outer wall cleaning brush (95) is fixedly connected to the movable end of the adjusting cylinder (94). Four sets of adjusting cylinders (94) are distributed in a ring at equal intervals about the center line of the fixed frame (93).

2. The device for precision polishing of the inner and outer cavities of a capillary tube made of hard and brittle materials according to claim 1, characterized in that: The moving adjustment mechanism (3) includes a drive motor (31) fixed to the side wall of the workbench (1). The output end of the drive motor (31) extends through the side wall of the workbench (1) into the workbench (1). The output end of the drive motor (31) is fixedly connected to a lead screw body (32). A lead screw slider (33) adapted to the lead screw body (32) is movably connected to the outside of the lead screw body (32). The upper end of the lead screw slider (33) is fixedly connected to the lower end of the moving clamp (2).

3. The equipment for precision polishing of the inner and outer cavities of capillary tubes made of hard and brittle materials according to claim 2, characterized in that: The rotating mechanism (6) includes a rotary motor (61) fixed to the upper end of the movable clamp (2). The output end of the rotary motor (61) is fixedly connected to a drive wheel (62). A belt (63) is movably connected to the outside of the drive wheel (62). A driven wheel (64) is fixedly connected to the outside of the mounting sleeve (5). The driven wheel (64) is movably connected to the belt (63). The drive wheel (62) is movably connected to the driven wheel (64) through the belt (63).

4. The device for precision polishing of the inner and outer cavities of a capillary tube made of hard and brittle materials according to claim 3, characterized in that: The mounting sleeve (5) is a hollow cylindrical structure with a sealed bottom end. The fixing screws (7) are symmetrically distributed in two sets about the center line of the mounting sleeve (5). The fixing screws (7) are fixedly connected to the inner side of the fixing pad (71).

5. The device for precision polishing of the inner and outer cavities of a capillary tube made of hard and brittle materials according to claim 4, characterized in that: The mounting post (8) is fixedly connected to a plug block (81) on the side near the mounting frame (91). A spring latch (82) is movably connected inside the plug block (81). The mounting frame (91) has a plug groove (96) that matches the plug block (81) inside. The mounting frame (91) has a positioning hole (97) that communicates with the plug groove (96) on the outer wall of the mounting frame (91). The positioning hole (97) matches the spring latch (82).

6. The device for precision polishing of the inner and outer cavities of a capillary tube made of hard and brittle materials according to claim 5, characterized in that: The plug block (81) has an internal mounting groove (83) for the spring latch (82) to move. An installation spring (84) is fixedly connected inside the mounting groove (83). The side of the installation spring (84) away from the mounting groove (83) is fixedly connected to the spring latch (82). The mounting post (8) overlaps with the horizontal center line of the moving clamp (2). The spring latch (82) is distributed correspondingly with the positioning hole (97).

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