Cylinder grinding eccentric fixture

By designing an eccentric fixture for grinding the outer diameter of a cylinder, and utilizing components such as a disc and a threaded column, stable clamping of the cylinder and flexible adjustment of the ejector pin position were achieved. This solved the problem of unstable positioning of the locating pin and improved machining accuracy and efficiency.

CN224407089UActive Publication Date: 2026-06-26SUZHOU HANHAO PRECISION MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU HANHAO PRECISION MASCH CO LTD
Filing Date
2025-06-27
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

When grinding the outer diameter of a cylinder, the use of locating pins for positioning results in unstable clamping, which easily leads to deviation and affects machining accuracy and efficiency.

Method used

An eccentric clamping fixture for grinding the outer diameter of a cylinder is designed. Stable clamping is achieved through the cooperation of a disc, threaded column, inclined block, limiting plate, slider, connecting plate, sliding column, fixing block, clamping block and spring. Flexible adjustment of the ejector pin position is achieved through the cooperation of a rotating column, turntable, adjusting block, threaded rod, connecting block, positioning disc, ejector pin, sliding shaft, sliding plate and limiting block.

Benefits of technology

It achieves stable clamping of the cylinder during the grinding of the outer diameter, avoids deviation, improves machining accuracy and efficiency, and adapts to the needs of different types of eccentric fixtures.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to eccentric clamp technical field discloses cylinder grinding eccentric clamp, including disc, the inside rotation of disc is connected with threaded column, the outer wall threaded connection of threaded column has inclined block, the outer wall sliding connection of inclined block has limit stop, the outer wall sliding connection of inclined block has sliding block, the outer wall fixed connection of sliding block has connecting plate, the outer wall fixed connection of connecting plate has slide post, the outer wall sliding connection of slide post has fixed block, the outer wall fixed connection of slide post has fixed plate, the outer wall fixed connection of fixed plate has clamping block, the outer wall of slide post is provided with spring, the outer wall of disc is provided with support subassembly. In the utility model, through the cooperation between disc, threaded column, inclined block, limit stop, sliding block, connecting plate, slide post, fixed block, fixed plate, clamping block and spring can play the effect of clamping fixed cylinder, avoid producing deviation when grinding eccentric work, influence work efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of eccentric fixture technology, and in particular to an eccentric fixture for grinding the outer diameter of a cylinder. Background Technology

[0002] Cylinders are crucial components in mechanical engineering, widely used in various power equipment and mechanical systems. Cylinder grinding is a common machining process, primarily aimed at meeting requirements for dimensional accuracy, surface quality, and shape precision. To satisfy these requirements, including dimensional accuracy, surface quality, shape precision, assembly accuracy, and performance enhancement, the cylinder needs to be clamped and secured; therefore, an eccentric fixture for cylinder grinding is required.

[0003] The eccentric fixture for grinding the outer diameter of a cylinder is a type of fixture that can be used when grinding the outer diameter of a cylinder. In the past, when eccentrically clamping a cylinder, locating pins were usually used for positioning. This method may result in unstable clamping and easy displacement. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an eccentric clamp for the outer diameter of a cylinder grinder, which aims to improve the problem that directly using locating pins for positioning may lead to unstable clamping and easy displacement.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an eccentric clamp for grinding the outer diameter of a cylinder, comprising a disc, a threaded column rotatably connected inside the disc, a wedge block threadedly connected to the outer wall of the threaded column, a limit plate slidably connected to the outer wall of the wedge block, the outer wall of the limit plate fixedly connected to the outer wall of the disc, a slider slidably connected to the outer wall of the wedge block, a connecting plate fixedly connected to the outer wall of the slider, a sliding column fixedly connected to the outer wall of the connecting plate, a fixing block slidably connected to the outer wall of the sliding column, the outer wall of the fixing block fixedly connected to the outer wall of the disc, a fixing plate fixedly connected to the outer wall of the sliding column, a clamping block fixedly connected to the outer wall of the fixing plate, a spring provided on the outer wall of the sliding column, one end of the spring fixedly connected to the outer wall of the fixing plate, the other end of the spring fixedly connected to the outer wall of the fixing block, and a support assembly provided on the outer wall of the disc.

[0006] Preferably, the support assembly includes a support block, the interior of which is disposed on the outer wall of the disk, and a base plate is fixedly connected to the lower surface of the support block.

[0007] Preferably, a support plate is fixedly connected to the upper surface of the base plate, a rotating column is rotatably connected inside the support plate, and a turntable is fixedly connected to the outer wall of the rotating column.

[0008] Preferably, an adjusting block is fixedly connected to the outer wall of the turntable, and a threaded rod is rotatably connected inside the adjusting block.

[0009] Preferably, the outer wall of the threaded rod is threadedly connected to a connecting block, and the outer wall of the connecting block is slidably connected to the inside of the adjusting block.

[0010] Preferably, a positioning plate is fixedly connected to the outer wall of the connecting block, and a pin is fixedly connected to the outer wall of the positioning plate.

[0011] Preferably, the positioning disk is slidably connected to a sliding shaft inside, and a sliding plate is rotatably connected to the outer wall of the sliding shaft.

[0012] Preferably, a limiting block is slidably connected to the outer wall of the sliding plate, and the lower surface of the limiting block is fixedly connected to the upper surface of the base plate.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the cylinder can be clamped and fixed by the cooperation between the disc, threaded column, inclined block, limiting plate, slider, connecting plate, sliding column, fixing block, fixing plate, clamping block and spring, so as to avoid displacement during the grinding of the outer circle and affect the work efficiency.

[0015] 2. In this utility model, the position of the positioning plate can be adjusted by the cooperation between the rotating column, turntable, adjusting block, threaded rod, connecting block, positioning plate, ejector pin, sliding shaft, sliding plate and limiting block, so as to flexibly adjust the position of the ejector pin to adapt to different types of eccentric clamps. Attached Figure Description

[0016] Figure 1 This is a perspective view of the eccentric fixture for grinding the outer diameter of a cylinder according to this utility model.

[0017] Figure 2 This is a partial structural diagram of the connecting plate of the cylinder grinding eccentric fixture proposed in this utility model;

[0018] Figure 3 This is a partial structural diagram of the fixing block of the cylinder grinding outer circle eccentric fixture proposed in this utility model;

[0019] Figure 4 This is a partial structural diagram of the support plate of the cylinder grinding eccentric fixture proposed in this utility model;

[0020] Figure 5 This is a partial structural diagram of the rotating column of the eccentric clamp for the cylinder grinding outer circle proposed in this utility model.

[0021] Legend:

[0022] 1. Disc; 2. Threaded column; 3. Inclined block; 4. Limiting plate; 5. Slider; 6. Connecting plate; 7. Sliding column; 8. Fixing block; 9. Fixing plate; 10. Clamping block; 11. Spring; 12. Support block; 13. Base plate; 14. Support plate; 15. Rotating column; 16. Turntable; 17. Adjusting block; 18. Threaded rod; 19. Connecting block; 20. Positioning disc; 21. Ejector pin; 22. Sliding shaft; 23. Sliding plate; 24. Limiting block. Detailed Implementation

[0023] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, 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.

[0024] Reference Figure 1 , Figure 2 and Figure 3 An embodiment of this utility model provides a cylinder grinding outer circle eccentric fixture, including a disc 1, a threaded column 2 rotatably connected inside the disc 1, a wedge block 3 threadedly connected to the outer wall of the threaded column 2, a limit plate 4 slidably connected to the outer wall of the wedge block 3, the outer wall of the limit plate 4 fixedly connected to the outer wall of the disc 1, a slider 5 slidably connected to the outer wall of the wedge block 3, a connecting plate 6 fixedly connected to the outer wall of the slider 5, a sliding column 7 fixedly connected to the outer wall of the connecting plate 6, a fixing block 8 slidably connected to the outer wall of the sliding column 7, the outer wall of the fixing block 8 fixedly connected to the outer wall of the disc 1, a fixing plate 9 fixedly connected to the outer wall of the sliding column 7, a clamping block 10 fixedly connected to the outer wall of the fixing plate 9, a spring 11 provided on the outer wall of the sliding column 7, one end of the spring 11 fixedly connected to the outer wall of the fixing plate 9, the other end of the spring 11 fixedly connected to the outer wall of the fixing block 8, and a support assembly provided on the outer wall of the disc 1.

[0025] Specifically, rotating the threaded column 2 can cause the inclined block 3 to slide on the outer wall of the limiting plate 4. The limiting plate 4 limits the inclined block 3. The inclined block 3 can cause the slider 5 to slide. The slider 5 can cause the connecting plate 6 to move. The connecting plate 6 can cause the sliding column 7 to slide. The sliding column 7 slides inside the fixed block 8. The fixed block 8 limits the sliding column 7. The sliding column 7 can cause the fixed plate 9 to slide. The fixed plate 9 can cause the clamping block 10 to move. The clamping block 10 clamps and fixes the cylinder. When the fixed plate 9 moves, it can cause the spring 11 to be compressed. The spring 11 can drive the clamping block 10 to achieve a stable clamping effect.

[0026] Reference Figure 2The support assembly includes a support block 12, the interior of which is located on the outer wall of the disk 1, and a base plate 13 is fixedly connected to the lower surface of the support block 12.

[0027] Specifically, the support block 12 supports the disc 1. The disc 1 can be driven to rotate, which can drive the cylinder to grind the outer circle. The base plate 13 provides fixed support for the support block 12.

[0028] Reference Figure 4 and Figure 5 A support plate 14 is fixedly connected to the upper surface of the base plate 13. A rotating column 15 is rotatably connected inside the support plate 14. A turntable 16 is fixedly connected to the outer wall of the rotating column 15. An adjusting block 17 is fixedly connected to the outer wall of the turntable 16. A threaded rod 18 is rotatably connected inside the adjusting block 17. A connecting block 19 is threadedly connected to the outer wall of the threaded rod 18. The outer wall of the connecting block 19 is slidably connected to the inside of the adjusting block 17. A positioning plate 20 is fixedly connected to the outer wall of the connecting block 19. A pin 21 is fixedly connected to the outer wall of the positioning plate 20.

[0029] Specifically, the base plate 13 fixes the support plate 14, the support plate 14 supports the rotating column 15, the rotating column 15 fixes the turntable 16, the turntable 16 fixes the adjusting block 17, the rotating threaded rod 18 can drive the connecting block 19 to slide inside the adjusting block 17, and the moving connecting block 19 can drive the positioning plate 20 to move, so as to flexibly adjust the position of the positioning plate 20. By adjusting the position of the positioning plate 20, the position of the ejector pin 21 can be adjusted so as to position the cylinder.

[0030] Reference Figure 4 The positioning disk 20 has a sliding shaft 22 inside, and a sliding plate 23 is rotatably connected to the outer wall of the sliding shaft 22. A limit block 24 is slidably connected to the outer wall of the sliding plate 23, and the lower surface of the limit block 24 is fixedly connected to the upper surface of the base plate 13.

[0031] Specifically, when the positioning disk 20 is adjusted, the sliding shaft 22 slides inside the positioning disk 20 to achieve the effect of limiting the positioning disk 20. The sliding shaft 22 can drive the sliding plate 23 to slide inside the limiting block 24, and the limiting block 24 plays a role in limiting the sliding plate 23.

[0032] Working principle: When the fixture is needed, the cylinder to be ground is first placed in the middle of the clamping block 10. By rotating the threaded column 2, the inclined block 3 can slide on the outer wall of the limiting plate 4, and at the same time, the inclined block 3 can slide on the outer wall of the slider 5, thereby moving the connecting plate 6. At the same time, the sliding column 7 can slide inside the fixed block 8, thereby moving the fixed plate 9. At the same time, the spring 11 is compressed, thereby achieving the effect of clamping and fixing the cylinder by the clamping block 10.

[0033] By adjusting the eccentric position of the positioning plate 20, the ejector pin 21 is aligned with the center hole of the cylinder. By rotating the threaded rod 18, the connecting block 19 can slide inside the adjusting block 17, which in turn moves the positioning plate 20, causing the sliding shaft 22 to slide inside the positioning plate 20, and the sliding plate 23 to slide inside the limiting block 24. This, in turn, adjusts the position of the ejector pin 21. By adjusting the ejector pin 21 to the position in the center hole of the cylinder, the eccentric clamping of the cylinder is completed. This clamp not only achieves the effect of stable clamping of the cylinder, preventing the cylinder from shifting when grinding the outer diameter, but also allows for flexible adjustment of the position of the ejector pin 21 to adapt to different types of eccentric clamps.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 eccentric fixture for grinding the outer circle of a cylinder, comprising a disc (1), characterized in that: The disc (1) is internally rotatably connected to a threaded column (2). A wedge block (3) is threadedly connected to the outer wall of the threaded column (2). A limit plate (4) is slidably connected to the outer wall of the wedge block (3). The outer wall of the limit plate (4) is fixedly connected to the outer wall of the disc (1). A slider (5) is slidably connected to the outer wall of the wedge block (3). A connecting plate (6) is fixedly connected to the outer wall of the slider (5). A sliding column (7) is fixedly connected to the outer wall of the connecting plate (6). The outer wall of the sliding column (7) is slidably connected to… There is a fixed block (8), the outer wall of the fixed block (8) is fixedly connected to the outer wall of the disc (1), the outer wall of the sliding column (7) is fixedly connected to a fixed plate (9), the outer wall of the fixed plate (9) is fixedly connected to a clamping block (10), the outer wall of the sliding column (7) is provided with a spring (11), one end of the spring (11) is fixedly connected to the outer wall of the fixed plate (9), the other end of the spring (11) is fixedly connected to the outer wall of the fixed block (8), and the outer wall of the disc (1) is provided with a support assembly.

2. The eccentric cylinder lapping fixture of claim 1, wherein: The support assembly includes a support block (12), the interior of which is disposed on the outer wall of the disk (1), and a base plate (13) is fixedly connected to the lower surface of the support block (12).

3. The eccentric cylinder lapping fixture of claim 2, wherein: A support plate (14) is fixedly connected to the upper surface of the base plate (13), and a rotating column (15) is rotatably connected inside the support plate (14). A turntable (16) is fixedly connected to the outer wall of the rotating column (15).

4. The eccentric fixture for grinding the outer diameter of a cylinder according to claim 3, characterized in that: An adjusting block (17) is fixedly connected to the outer wall of the turntable (16), and a threaded rod (18) is rotatably connected inside the adjusting block (17).

5. The eccentric fixture for grinding the outer diameter of a cylinder according to claim 4, characterized in that: The outer wall of the threaded rod (18) is threadedly connected to a connecting block (19), and the outer wall of the connecting block (19) is slidably connected to the inside of the adjusting block (17).

6. The eccentric fixture for grinding the outer diameter of a cylinder according to claim 5, characterized in that: The outer wall of the connecting block (19) is fixedly connected to a positioning disk (20), and the outer wall of the positioning disk (20) is fixedly connected to a pin (21).

7. The eccentric fixture for grinding the outer diameter of a cylinder according to claim 6, characterized in that: The positioning disk (20) is internally slidably connected to a sliding shaft (22), and the outer wall of the sliding shaft (22) is rotatably connected to a sliding plate (23).

8. The eccentric fixture for grinding the outer diameter of a cylinder according to claim 7, characterized in that: The outer wall of the sliding plate (23) is slidably connected to a limiting block (24), and the lower surface of the limiting block (24) is fixedly connected to the upper surface of the base plate (13).