A high-precision inner hole sealing spherical grinding device

By designing a high-precision inner hole sealing spherical grinding device including a swing mechanism, abrasive assembly, a shrinking assembly and a fixed assembly, the problem of incomplete grinding of the sealing ball surface is solved and the grinding effect is significantly improved.

CN118990220BActive Publication Date: 2025-04-15NANTONG LIANXIN MACHINERY MFR
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Patent Information

Application Number
CN202411475356.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-22
Publication Date
2025-04-15
Estimated Expiration
2044-10-22

AI Technical Summary

Technical Problem

During the grinding process of the existing high-precision inner hole sealing spherical grinding device, there is a problem of incomplete grinding on the surface of the sealing ball, resulting in a decrease in the grinding effect.

Method used

A high-precision inner hole sealing spherical grinding device including a swing mechanism, a grinding assembly, a shrinking assembly and a fixing assembly is designed. The grinding assembly is driven to swing on the surface of the sealing ball by a swing mechanism. The grinding assembly is designed to simulate the shape of the inner wall of the pipe in the water valve, the shrinking assembly is used to center the grinding assembly, and the fixing assembly is used to fix the sealing ball and drive its rotation.

Benefits of technology

By increasing the grinding area, simulating the shape of the sealing ball in the inner wall of the pipe in the water valve, ensuring the centered clamping of the grinding assembly and the rotation of the sealing ball, the grinding effect on the sealing ball surface is significantly improved.

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Abstract

The invention relates to the technical field of mechanical processing, and discloses a high-precision inner hole sealing spherical grinding device, comprising a connecting plate 1 that is rotatably connected to the bottom of a base 1 through a bearing, the bottom of the connecting plate 1 is fixedly connected with a shrinkage component, both sides of the connecting plate 1 are fixedly connected with a slide plate, the inner walls of the two slide plates are slidably connected with grinding components, a cross plate is provided at the bottom of the connecting plate 1, the front and rear ends of the connecting plate 1 are fixedly connected to the cross plate, and one end of the two slide plates away from the connecting plate 1 is fixedly connected to the cross plate, the bottom of the cross plate is fixedly connected with a slider 1, and the top of the workbench is fixedly connected with a sliding column 1, the rotation of the motor 1 drives the bottom connecting plate 1 to continuously swing left and right, and then the grinding components on both sides are also continuously swung on the surface of the sealing ball, thereby increasing the grinding area of ​​the equipment on the sealing ball and improving the grinding effect of the equipment on the sealing ball.
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Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, in particular to a high-precision inner hole sealing spherical surface grinding device. Background Art

[0002] The existing air-locking valve achieves sealing by the contact between the spherical sealing surface of the ball and the sealing spherical surface of the valve seat. The machining accuracy of the sealing spherical surface in the inner hole of the valve seat directly affects the sealing effect of the air-locking valve, so the grinding accuracy of the sealing spherical surface in the inner hole of the valve seat is very high.

[0003] The patent application with application number CN202020552648.0 discloses a high-precision inner hole sealing spherical grinding device, including a support frame, a guide device, a planetary gear grinding device, a precision workpiece clamping and positioning device, a linear drive mechanism, and a controller. The linear drive mechanism and the planetary gear grinding device are controlled by the controller. The equipment has the advantages of novel structure, low manufacturing cost, high grinding accuracy, and high grinding efficiency.

[0004] When the above device is in use, the state of the central sealing ball is controlled by the linear drive mechanism and the planetary gear to grind the sealing ball. However, the surface of the sealing ball is still not completely ground, resulting in a decrease in the grinding effect. Summary of the invention

[0005] The object of the present invention is to provide a high-precision inner hole sealing spherical grinding device to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a high-precision inner hole sealing spherical grinding device, comprising a workbench, the top of the workbench is fixedly connected to a base 1, the top of the base 1 is fixedly connected to a track, the outer wall of the track is slidably connected to a moving seat, the inner wall of the moving seat is fixedly connected to a fixed rod, and further comprising:

[0007] The swing mechanism comprises a connecting plate 1 rotatably connected to the bottom of the base 1 through a bearing, a contraction component is fixedly connected to the bottom of the connecting plate 1, a slide plate is fixedly connected to both sides of the connecting plate 1, a grinding component is slidably connected to the inner walls of the two slide plates, a cross plate is arranged at the bottom of the connecting plate 1, the front and rear ends of the connecting plate 1 are fixedly connected to the cross plate, the ends of the two slide plates away from the connecting plate 1 are fixedly connected to the cross plate, a slider 1 is fixedly connected to the bottom of the cross plate, a sliding column 1 is fixedly connected to the top of the workbench, and the sliding column 1 The outer wall is slidably connected to a long plate, and notches are formed at the front and rear ends of the long plate. The inner wall of the notch at the front end is slidably connected to a slider, and the inner wall of the workbench is fixedly connected to a motor, and a circular plate is fixedly connected to the output end of the motor, and a cylinder is fixedly connected to the side of the circular plate away from the motor, and the inner wall of the notch at the rear side is slidably connected to the cylinder. The rotation of the motor drives the bottom connecting plate 1 to continuously swing left and right, and then the grinding components on both sides also continuously swing on the surface of the sealing ball, thereby increasing the grinding area of ​​the equipment on the sealing ball and improving the grinding effect of the equipment on the sealing ball.

[0008] The rotating mechanism comprises a bracket fixedly connected to the top of the base one, the inner wall of the bracket is fixedly connected to the motor three, the output end of the motor three is fixedly connected to the fixing component, and the top of the bracket is fixedly connected to the injector.

[0009] According to the above technical scheme, the grinding component includes a slider 2, the outer wall of the slider 2 is slidably connected to the slide plate, the bottom of the slider 2 is fixedly connected to a Z-plate, the top of the Z-plate away from the slider 2 is fixedly connected to a connecting column, the top of the slider 2 is fixedly connected to a base 2, the inner wall of the base 2 is fixedly connected to a motor 2, the output end of the motor 2 is fixedly connected to a grinding ring, the side of the grinding ring close to the base 2 is rotatably connected to the base 2 through a bearing, and by setting the grinding component, the grinding ring is fit to the surface of the sealing ball, because the design of the grinding ring simulates the appearance of the sealing ball on the inner wall of the pipe in the water valve, the surface of the sealing ball ground in this way can be more suitable for the use of the water valve, thereby improving the grinding effect of the equipment on the sealing ball.

[0010] According to the above technical scheme, the shrinkage component includes a push rod, the bottom of the connecting plate 1 is fixedly connected to the push rod, the front end of the push rod is fixedly connected with a slider 3, the inner wall of the slider 3 is slidably connected to the connecting plate 1, the outer wall of the front end of the push rod is slidably connected to a connecting frame, the front end outer wall of the push rod is sleeved with a spring 1, one end of the spring 1 is fixedly connected to the connecting frame, the end of the spring 1 away from the connecting frame is fixedly connected to the slider 3, the outer walls at both ends of the connecting frame are rotatably connected with connecting rods through bearings, and the end of the connecting rod away from the connecting frame is rotatably connected to the connecting column through a bearing, and by setting the shrinkage component, the grinding components on both sides of the equipment are clamped in the center, so that the grinding ring can fit firmly on the surface of the sealing ring that needs to be ground, thereby improving the grinding effect of the equipment on the sealing ball.

[0011] According to the above technical solution, the fixed component includes a shell, the output end of the motor three is fixedly connected to the shell, the inner wall of the shell is fixedly connected to an elastic component, the end of the elastic component away from the shell is fixedly connected to a center column, the outer wall of the center column is fixedly connected to an extrusion plate, the end of the center column away from the elastic component is fixedly connected to a contact plate, the end of the shell away from the motor three is fixedly connected to a hollow column one, the inner wall of the hollow column one is slidably connected to the center column, the end of the hollow column one away from the shell is fixedly connected to a frame, the end of the frame away from the hollow column one is fixedly connected to a hollow column two, the inner wall of the hollow column two is slidably connected to the center column, and the frame The inner wall of the frame is slidably connected to a sliding column 2, the outer side of the sliding column 2 is fixedly connected to a fixed plate, the inner side of the sliding column 2 is fixedly connected to a connecting plate 2, the outer wall of the sliding column 2 is sleeved with a spring 2, one end of the spring 2 is fixedly connected to the frame, the end of the spring 2 away from the frame is fixedly connected to the connecting plate 2, the central axis of the connecting plate 2 is rotatably connected to a roller through a bearing, and a fixing component is set, and the sealing ball to be polished is sleeved on the component, and the sealing ball is fixed to the inner wall of the sealing ball through the component, and then the sealing ball is driven to rotate by the motor 3, so that the surface of the sealing ball can contact the grinding ring, thereby improving the grinding effect of the equipment on the sealing ball.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0013] 1. The present invention sets a swing component, and the rotation of the motor drives the bottom connecting plate to swing left and right continuously, and then the grinding components on both sides also swing continuously on the surface of the sealing ball, thereby increasing the grinding area of ​​the equipment on the sealing ball and improving the grinding effect of the equipment on the sealing ball.

[0014] 2. The present invention sets a grinding assembly to allow the grinding ring to fit on the surface of the sealing ball. Since the design of the grinding ring simulates the appearance of the sealing ball on the inner wall of the pipe in the water valve, the surface of the sealing ball ground in this way can be more suitable for the use of the water valve, thereby improving the grinding effect of the equipment on the sealing ball.

[0015] 3. The present invention provides a shrinking component to allow the grinding components on both sides of the equipment to be centrally clamped, so that the grinding ring can be firmly attached to the surface of the sealing ring that needs to be ground, thereby improving the grinding effect of the equipment on the sealing ball.

[0016] 4. The present invention sets a fixing component, sets the sealing ball to be polished on the component, fixes the sealing ball from the inner wall through the component, and then drives the sealing ball to rotate through motor 3, so that the surface of the sealing ball can contact the grinding ring, thereby improving the grinding effect of the equipment on the sealing ball. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the swing mechanism of the present invention;

[0020] Figure 3 is a bottom view of the swing mechanism of the present invention;

[0021] Figure 4 It is a schematic diagram of the internal connection of the swing mechanism of the present invention;

[0022] Figure 5 is a schematic diagram of a grinding assembly of the present invention;

[0023] Figure 6 is a schematic diagram of a contraction assembly of the present invention;

[0024] Figure 7 is a schematic diagram of the rotating mechanism of the present invention;

[0025] Figure 8 is a cross-sectional view of a fixing assembly of the present invention;

[0026] In the figure: 1, workbench; 101, base 1; 102, track; 103, moving seat; 104, fixed rod; 2, swing mechanism; 201, connecting plate 1; 202, slide plate; 203, cross plate; 204, slider 1; 205, sliding column 1; 206, long plate; 207, notch; 208, motor 1; 209, round plate; 2010, column; 21, grinding assembly; 211, slider 2; 212, Z-shaped plate; 213, connecting column; 214, base 2; 215, motor 2; 216, grinding ring; 22, shrinkage assembly Parts; 221, push rod; 222, slider three; 223, spring one; 224, connecting frame; 225, connecting rod; 3, rotating mechanism; 301, bracket; 302, motor three; 303, injector; 31, fixing component; 311, housing; 312, elastic component; 313, center column; 314, extrusion plate; 315, contact plate; 316, hollow column one; 317, frame; 318, hollow column two; 319, sliding column two; 3110, fixing plate; 3111, connecting plate two; 3112, spring two; 3113, roller. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] For example, see Figure 1-Figure 4 The present invention provides a technical solution: a high-precision inner hole sealing spherical grinding device, comprising a workbench 1, the top of the workbench 1 is fixedly connected to a base 101, the top of the base 101 is fixedly connected to a track 102, the outer wall of the track 102 is slidably connected to a moving seat 103, the inner wall of the moving seat 103 is fixedly connected to a fixed rod 104, and also includes:

[0029] The swing mechanism 2 includes a connecting plate 201 rotatably connected to the bottom of the base 101 through a bearing, a contraction component 22 is fixedly connected to the bottom of the connecting plate 201, both sides of the connecting plate 201 are fixedly connected to the slide plates 202, the inner walls of the two slide plates 202 are slidably connected to the grinding components 21, a cross plate 203 is arranged at the bottom of the connecting plate 201, the front and rear ends of the connecting plate 201 are fixedly connected to the cross plate 203, the ends of the two slide plates 202 away from the connecting plate 201 are fixedly connected to the cross plate 203, and the cross plate 203 A slider 204 is fixedly connected to the bottom of the workbench 1, a sliding column 205 is fixedly connected to the top of the workbench 1, a long plate 206 is slidably connected to the outer wall of the sliding column 205, notches 207 are provided at the front and rear ends of the long plate 206, the inner wall of the notch 207 at the front end is slidably connected to the slider 204, a motor 208 is fixedly connected to the inner wall of the workbench 1, a circular plate 209 is fixedly connected to the output end of the motor 208, a cylinder 2010 is fixedly connected to the side of the circular plate 209 away from the motor 208, and the inner wall of the notch 207 at the rear side is slidably connected to the cylinder 2010.

[0030] The working principle of this embodiment is as follows: after the sealing ball is fixed on the rotating mechanism 3, the moving seat 103 is started to drive the fixing rod 104 to be inserted into the rotating mechanism 3 to ensure the stability of the equipment operation, and then the shrinking component 22 is started to drive the grinding component 21 to fit on the surface of the sealing ball, and then the grinding component 21 is started to grind the surface of the sealing ball, and finally the motor 208 is started. The rotating motor 208 will drive the circular plate 209 to rotate, and the rotating circular plate 209 drives the long plate 206 to move back and forth left and right through the cylinder 2010. The reciprocating long plate 206 will drive the cross plate 203 to swing back and forth left and right, and then the grinding component 21 will also swing left and right on the surface of the sealing ball, thereby increasing the grinding area of ​​the equipment for the sealing ball and improving the grinding effect of the equipment on the sealing ball.

[0031] Embodiment 2 is different from Embodiment 1 in that: Figure 5-Figure 6 As shown, the grinding assembly 21 includes a slider 211, the outer wall of the slider 211 is slidably connected to the slide plate 202, the bottom of the slider 211 is fixedly connected to a Z-shaped plate 212, the top of the Z-shaped plate 212 away from the slider 211 is fixedly connected to a connecting column 213, the top of the slider 211 is fixedly connected to a base 214, the inner wall of the base 214 is fixedly connected to a motor 215, and the output end of the motor 215 is fixedly connected to a grinding ring 216, so that the grinding ring 216 fits on the surface of the sealing ball, because the design of the grinding ring 216 simulates the appearance of the sealing ball on the inner wall of the pipe in the water valve, so that the surface of the sealing ball ground in this way can be more suitable for the use of the water valve, thereby improving the grinding effect of the equipment on the sealing ball, and the side of the grinding ring 216 close to the base 214 is rotatably connected to the base 214 through a bearing.

[0032] The contraction assembly 22 includes a push rod 221, the bottom of the connecting plate 201 is fixedly connected to the push rod 221, the front end of the push rod 221 is fixedly connected to a slider 3 222, the inner wall of the slider 3 222 is slidably connected to the connecting plate 201, the outer wall of the front end of the push rod 221 is slidably connected to a connecting frame 224, the front end outer wall of the push rod 221 is sleeved with a spring 1 223, one end of the spring 1 223 is fixedly connected to the connecting frame 224, the end of the spring 1 223 away from the connecting frame 224 is fixedly connected to the slider 3 222, the outer walls at both ends of the connecting frame 224 are rotatably connected to connecting rods 225 through bearings, and the end of the connecting rod 225 away from the connecting frame 224 is rotatably connected to the connecting column 213 through a bearing.

[0033] The working principle of this embodiment is: when the grinding assembly 21 needs to be moved to the center, the push rod 221 is started to move the connecting frame 224 forward, and then the grinding assembly 21 is driven to move to the center through the connecting rod 225, so that the grinding ring 216 can be firmly attached to the surface of the sealing ring that needs to be ground, thereby improving the grinding effect of the equipment on the sealing ball.

[0034] Embodiment 3 is different from Embodiment 1 and Embodiment 2 in that: Figure 7-Figure 8 As shown, the rotating mechanism 3 includes a bracket 301 fixedly connected to the top of the base 101, the inner wall of the bracket 301 is fixedly connected to a motor 302, the output end of the motor 302 is fixedly connected to a fixing component 31, after the sealing ball is sleeved on the fixing component 31, the motor 302 is started to drive the sealing ball to rotate, so that the surface of the sealing ball can contact the grinding ring 216, thereby improving the grinding effect of the equipment on the sealing ball, and the top of the bracket 301 is fixedly connected to an injector 303, and the purpose of setting the injector 303 is to spray the abrasive on the surface of the sealing ball to enhance the grinding effect of the equipment on the sealing ball.

[0035] The fixing component 31 includes a shell 311, the output end of the motor three 302 is fixedly connected to the shell 311, the inner wall of the shell 311 is fixedly connected to an elastic component 312, the end of the elastic component 312 away from the shell 311 is fixedly connected to a central column 313, the outer wall of the central column 313 is fixedly connected to an extrusion plate 314, the end of the central column 313 away from the elastic component 312 is fixedly connected to a contact plate 315, the end of the shell 311 away from the motor three 302 is fixedly connected to a hollow column 1 316, the inner wall of the hollow column 1 316 is slidably connected to the central column 313, the end of the hollow column 1 316 away from the shell 311 is fixedly connected to a frame 317, and the frame 318 is fixedly connected to the outer wall of the shell 311. One end of 17 away from the hollow column 1 316 is fixedly connected to the hollow column 2 318, the inner wall of the hollow column 2 318 is slidably connected to the central column 313, the inner wall of the frame 317 is slidably connected to the sliding column 2 319, the outer side of the sliding column 2 319 is fixedly connected to the fixed plate 3110, the inner side of the sliding column 2 319 is fixedly connected to the connecting plate 2 3111, the outer wall of the sliding column 2 319 is sleeved with a spring 2 3112, one end of the spring 2 3112 is fixedly connected to the frame 317, the end of the spring 2 3112 away from the frame 317 is fixedly connected to the connecting plate 2 3111, and the central axis of the connecting plate 2 3111 is rotatably connected to a roller 3113 through a bearing.

[0036] The working principle of this embodiment is as follows: when the fixing rod 104 hits the contact plate 315, the center column 313 is driven to move backward, and then the extrusion plate 314 squeezes the roller 3113, driving the roller 3113 to move outward, and then the movement of the roller 3113 drives the fixing plate 3110 to move outward as well. The fixing plate 3110 moving outward will fit against the inner wall of the sealing ball to fix the sealing ball, so that the motor can rotate and the sealing ball can also rotate, so that the surface of the sealing ball can contact the grinding ring 216, thereby improving the grinding effect of the equipment on the sealing ball.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-precision inner hole sealing spherical grinding device, comprising a workbench (1), the top of the workbench (1) is fixedly connected to a base (101), the top of the base (101) is fixedly connected to a track (102), the outer wall of the track (102) is slidably connected to a moving seat (103), the inner wall of the moving seat (103) is fixedly connected to a fixing rod (104), characterized in that: Also includes: A swing mechanism (2), the swing mechanism (2) comprising a connecting plate (201) rotatably connected to the bottom of a base (101) via a bearing, a contraction assembly (22) being fixedly connected to the bottom of the connecting plate (201), a slide plate (202) being fixedly connected to both sides of the connecting plate (201), a grinding assembly (21) being slidably connected to the inner walls of the two slide plates (202), a cross plate (203) being arranged at the bottom of the connecting plate (201), front and rear ends of the connecting plate (201) being fixedly connected to the cross plate (203), ends of the two slide plates (202) away from the connecting plate (201) being fixedly connected to the cross plate (203), and the cross plate (203) The bottom of the workbench (1) is fixedly connected with a slider (204), the top of the workbench (1) is fixedly connected with a sliding column (205), the outer wall of the sliding column (205) is slidably connected with a long plate (206), the front and rear ends of the long plate (206) both have notches (207), the inner wall of the notch (207) at the front end is slidably connected with the slider (204), the inner wall of the workbench (1) is fixedly connected with a motor (208), the output end of the motor (208) is fixedly connected with a circular plate (209), the side of the circular plate (209) away from the motor (208) is fixedly connected with a cylinder (210), and the inner wall of the notch (207) at the rear side is slidably connected with the cylinder (210); A rotating mechanism (3), the rotating mechanism (3) comprising a bracket (301) fixedly connected to the top of the first base (101), a motor three (302) fixedly connected to the inner wall of the bracket (301), a fixed component (31) fixedly connected to the output end of the motor three (302), and a fuel injector (303) fixedly connected to the top of the bracket (301); The grinding assembly (21) comprises a second slider (211), the outer wall of the second slider (211) is slidably connected to the slide plate (202), the bottom of the second slider (211) is fixedly connected to a Z-shaped plate (212), the top of the Z-shaped plate (212) away from the second slider (211) is fixedly connected to a connecting column (213), the top of the second slider (211) is fixedly connected to a second base (214), the inner wall of the second base (214) is fixedly connected to a second motor (215), the output end of the second motor (215) is fixedly connected to a grinding ring (216), and the side of the grinding ring (216) close to the second base (214) is rotatably connected to the second base (214) via a bearing; The contraction assembly (22) comprises a push rod (221), the bottom of the connecting plate 1 (201) is fixedly connected to the push rod (221), the front end of the push rod (221) is fixedly connected to a slider 3 (222), the inner wall of the slider 3 (222) is slidably connected to the connecting plate 1 (201), the outer wall of the front end of the push rod (221) is slidably connected to a connecting frame (224), the front end outer wall of the push rod (221) is sleeved with a spring 1 (223), one end of the spring 1 (223) is fixedly connected to the connecting frame (224), the end of the spring 1 (223) away from the connecting frame (224) is fixedly connected to the slider 3 (222), the outer walls at both ends of the connecting frame (224) are rotatably connected to connecting rods (225) via bearings, and the end of the connecting rod (225) away from the connecting frame (224) is rotatably connected to the connecting column (213) via a bearing.

2. A high-precision inner hole sealing spherical surface grinding device according to claim 1, characterized in that: The fixing component (31) comprises a housing (311), the output end of the motor three (302) is fixedly connected to the housing (311), an elastic component (312) is fixedly connected to the inner wall of the housing (311), an end of the elastic component (312) away from the housing (311) is fixedly connected to a center column (313), an outer wall of the center column (313) is fixedly connected to an extrusion plate (314), and an end of the center column (313) away from the elastic component (312) is fixedly connected to a contact plate (315).

3. A high-precision inner hole sealing spherical surface grinding device according to claim 2, characterized in that: The end of the housing (311) away from the motor three (302) is fixedly connected to the hollow column one (316), the inner wall of the hollow column one (316) is slidably connected to the center column (313), the end of the hollow column one (316) away from the housing (311) is fixedly connected to the frame (317), the end of the frame (317) away from the hollow column one (316) is fixedly connected to the hollow column two (318), and the inner wall of the hollow column two (318) is slidably connected to the center column (313).

4. A high-precision inner hole sealing spherical surface grinding device according to claim 3, characterized in that: The inner wall of the frame (317) is slidably connected to a sliding column 2 (319), the outer side of the sliding column 2 (319) is fixedly connected to a fixed plate (3110), the inner side of the sliding column 2 (319) is fixedly connected to a connecting plate 2 (3111), the outer wall of the sliding column 2 (319) is sleeved with a spring 2 (3112), one end of the spring 2 (3112) is fixedly connected to the frame (317), the end of the spring 2 (3112) away from the frame (317) is fixedly connected to the connecting plate 2 (3111), and the central axis of the connecting plate 2 (3111) is rotatably connected to a roller (3113) via a bearing.

Citation Information

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