Magnetic attraction tool for planing bottom cover of oil cylinder
By designing a magnetic fixture with components such as a base, adjustment groove, and magnets, the problem that existing magnetic fixtures cannot be used for machining the flat surface of the cylinder bottom cover is solved. This enables positioning and stable support for different models of cylinder bottom covers, improving the stability and applicability of the machining process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG JIANQIAO MASCH CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-06-23
AI Technical Summary
Existing magnetic fixtures are not suitable for machining the flat surface of cylinder bottom covers, and cannot be used to position and fix the bottom covers of different models of cylinders, resulting in inconvenience in machining the sealing surface.
A magnetic fixture was designed, comprising a base, an adjustment groove, a magnet, a fixing ring, a rotating ring, a spur bolt, a connecting strip, an adjusting strip, a support column, a positioning column, and a clamping assembly. These components enable the bottom surface positioning and fixing support of different models of hydraulic cylinder bottom covers, enhancing the stability of the machining process.
It achieves effective positioning and fixing support for bottom covers of different models of hydraulic cylinders, improves the practicality and stability of sealing surface machining, and enhances the stability and applicability of machining.
Smart Images

Figure CN224390846U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of magnetic suction fixture for machining the flat surface of a hydraulic cylinder bottom cover, and particularly to a magnetic suction fixture for machining the flat surface of a hydraulic cylinder bottom cover. Background Technology
[0002] Existing magnetic suction fixtures for machining are easy to use due to their structural design. However, because there are various models of hydraulic cylinder bottom covers, existing magnetic suction fixtures are not suitable for machining the flat surfaces of hydraulic cylinder bottom covers. For example, Chinese patent disclosure "A Magnetic Suction Fixture" (application number: CN202322315689.4) includes: a limiting member A, a limiting member B, and a magnetic suction component. The lower end of the limiting member A has a limiting surface A, which is used for contacting and positioning with the surface of the foam board. The limiting member B is arranged parallel to the limiting member A and has a gap between them. The lower end of the limiting member B has a limiting surface B, which is used for contacting and positioning with the surface of the foam board. Limiting surface A is flush with B, meaning that limiting surface A and limiting surface B are at the same horizontal level. Limiting surface B is used for contact and positioning with the surface of the foam board. Magnetic components are set in the gap and connected to limiting components A and B respectively. The magnetic components are used to attract the iron plate to fit against limiting surfaces A and B. The area of limiting surfaces A and B is larger than the area of the attracted iron plate. This structure facilitates use, but it is not suitable for machining the flat surface of the cylinder bottom cover. It cannot be used to position and fix the bottom surface of different models of cylinder bottom covers, and it is not convenient to machine the sealing surface. Its use is limited. Utility Model Content
[0003] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a magnetic suction fixture for machining the bottom surface of a hydraulic cylinder cover. By setting a base, adjusting groove, magnet, protection, fixing ring, rotating ring, spur bolt, connecting strip, adjusting strip, support column, positioning column, and clamping assembly, it is convenient to position and fix the bottom surface of hydraulic cylinder covers of different models, thereby facilitating the machining of the sealing surface and enhancing the overall practicality.
[0004] This utility model also provides a magnetic suction fixture for machining the surface of a hydraulic cylinder bottom cover, comprising: a base, an adjustment groove on the base, a magnet fixedly connected in the adjustment groove, a protective ring on the side surface of the magnet, a fixing ring on the outer surface of the protective ring, a rotating ring rotatably connected to the outer surface of the fixing ring, a screw bolt threaded onto the side surface of the rotating ring, the screw bolt passing through the rotating ring and fitting against the outer surface of the fixing ring, four connecting strips fixedly connected to the side surface of the rotating ring, an adjustment strip rotatably connected to the upper surface of the connecting strips via a rotating column, a support column on the adjustment strip, a positioning column fixedly connected to the top of the support column, and a clamping assembly on the adjustment groove. This structure facilitates the positioning and fixing of the bottom surface of hydraulic cylinder bottom covers of different models, thereby facilitating the machining of the sealing surface and enhancing overall practicality.
[0005] According to the present invention, a magnetic suction fixture for machining the bottom cover of an oil cylinder includes a clamping assembly comprising a fixing bar with a threaded post threadedly connected to the fixing bar. A rotating block is fixedly connected to one end of the threaded post located on the upper surface of the base. The above structure facilitates the rotation of the threaded post when it is limited.
[0006] According to the present invention, a magnetic suction fixture for machining the bottom cover of an oil cylinder has a movable block slidably connected to the upper surface of the base, a rotating groove is provided in the movable block, the rotating block is located in the rotating groove and is rotatably connected to the rotating groove. With the above structure, when the rotating block rotates, the movable block can be moved by the threaded column.
[0007] According to the present invention, a magnetic suction fixture for machining the flat surface of a hydraulic cylinder bottom cover is provided on the moving block, a locking slot is provided in the locking slot, a connecting block is fixedly connected to the side surface of the locking block, a fixing block is fixedly connected to the side surface of the connecting block away from the moving block, and a clamping block is fixedly connected to the side surface of the fixing block. With the above structure, it is convenient to replace the clamping block and enhance the stability during the machining of the hydraulic cylinder bottom cover.
[0008] According to the present invention, a magnetic suction fixture for machining the bottom cover of an oil cylinder is provided on the moving block, and a clamping plate is slidably connected in the moving block. The clamping plate is located above the clamping block, and a pull block is fixedly connected to the side surface of the clamping plate. With the above structure, it is convenient to pull the clamping plate to move.
[0009] According to the present invention, a magnetic suction fixture for machining the bottom cover of an oil cylinder is provided, wherein a connecting column is fixedly connected to the side surface of the pull block, and a slider is fixedly connected to the end of the connecting column away from the pull block. With the above structure, it is convenient to move the connecting column by pulling the pull block, thereby driving the slider to move.
[0010] According to the present invention, a magnetic suction fixture for machining the bottom cover of an oil cylinder is provided in the movable block, and a spring is fixedly connected in the movable groove. The other end of the spring is fixedly connected to the side surface of the slider. The slider is located in the movable groove and is slidably connected to the movable groove. With the above structure, it is easy to pop up the slider, thereby popping up the clamping plate.
[0011] According to the present invention, a magnetic suction fixture for machining the bottom cover of an oil cylinder is provided on the base, and the drainage groove is connected to the adjustment groove. Through the above structure, it is convenient to discharge the coolant sprayed during machining and avoid the accumulation of coolant affecting the use.
[0012] Beneficial effects:
[0013] Compared with existing technologies, this magnetic suction fixture for machining the bottom surface of a hydraulic cylinder cover, by being equipped with a base, adjusting groove, magnet, protection, fixing ring, rotating ring, spur bolt, connecting strip, adjusting strip, support column, positioning column, and clamping assembly, facilitates the positioning and fixing support of the bottom surface of hydraulic cylinder covers of different models, thereby facilitating the machining of the sealing surface and enhancing the overall practicality. Attached Figure Description
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0015] Figure 1 This is an overall structural diagram of a magnetic suction fixture for machining the flat surface of a hydraulic cylinder bottom cover according to this utility model;
[0016] Figure 2 This is a transverse sectional view of a magnetic suction fixture for machining the flat surface of a hydraulic cylinder bottom cover according to this utility model.
[0017] Figure 3 This is a structural diagram showing the spring position of a magnetic suction fixture for machining the flat surface of a hydraulic cylinder bottom cover according to this utility model.
[0018] Figure 4 This is a longitudinal sectional view of a magnetic suction fixture for machining the flat surface of a hydraulic cylinder bottom cover according to this utility model.
[0019] Figure 5 This utility model relates to a magnetic suction fixture for machining the flat surface of a hydraulic cylinder bottom cover. Figure 3 Enlarged structural diagram at point D.
[0020] Legend:
[0021] 1. Base; 2. Adjustment groove; 3. Connecting bar; 4. Adjustment bar; 5. Positioning post; 6. Rotating post; 7. Support post; 8. Rotating ring; 9. Magnet; 10. Claw bolt; 11. Fixing ring; 12. Protective ring; 13. Drainage groove; 14. Fixing bar; 15. Threaded post; 16. Moving block; 17. Fixing block; 18. Clamping block; 19. Moving groove; 20. Pulling block; 21. Connecting post; 22. Slider; 23. Movable groove; 24. Spring; 25. Clamping plate; 26. Connecting block; 27. Clamping block; 28. Rotating groove; 29. Rotating block. Detailed Implementation
[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0023] Reference Figure 1-5 This utility model discloses a magnetic suction fixture for machining the flat surface of a hydraulic cylinder bottom cover, comprising: a base 1, an adjustment groove 2 and a drainage groove 13 on the base 1, the drainage groove 13 being connected to the adjustment groove 2, a magnet 9 being fixedly connected inside the adjustment groove 2, a protective ring 12 on the side surface of the magnet 9, a fixing ring 11 on the outer surface of the protective ring 12, a rotating ring 8 rotatably connected to the outer surface of the fixing ring 11, a horn bolt 10 threadedly connected to the side surface of the rotating ring 8, the horn bolt 10 penetrating the rotating ring 8 and fitting against the outer surface of the fixing ring 11, four connecting strips 3 fixedly connected to the side surface of the rotating ring 8, an adjustment strip 4 rotatably connected to the upper surface of the connecting strips 3 via a rotating column 6, a support column 7 on the adjustment strip 4, a positioning column 5 fixedly connected to the top of the support column 7, and a clamping assembly on the adjustment groove 2.
[0024] Specifically, the position of the positioning pin 5 is adjusted according to the positioning hole on the bottom cover of the cylinder, so that the adjusting strip 4 can be rotated. When necessary, the rotating ring 8 is rotated and fixed by the spur bolt 10 to adjust the positioning pin 5 to the required position. Then, the positioning pin 5 is engaged with the positioning hole on the bottom cover of the cylinder, and the bottom cover of the cylinder is attracted by the magnet 9.
[0025] The clamping assembly includes a fixing strip 14, a threaded post 15 threadedly connected to the fixing strip 14, a rotating block 29 fixedly connected to one end of the threaded post 15 located on the upper surface of the base 1, a movable block 16 slidably connected to the upper surface of the base 1, a rotating groove 28 provided in the movable block 16, the rotating block 29 located in the rotating groove 28 and rotatably connected to the rotating groove 28, a slot provided on the movable block 16, a locking block 27 engaging in the slot, a connecting block 26 fixedly connected to the side surface of the locking block 27, and a fixing block 17 fixedly connected to the side surface of the connecting block 26 away from the movable block 16. A clamping block 18 is fixedly connected to the surface of the movable block 16. A movable groove 19 is provided on the movable block 16. A locking plate 25 is slidably connected in the movable groove 19. The locking plate 25 is located above the locking block 27. A pulling block 20 is fixedly connected to the side surface of the locking plate 25. A connecting post 21 is fixedly connected to the side surface of the pulling block 20. A slider 22 is fixedly connected to the end of the connecting post 21 away from the pulling block 20. A movable groove 23 is provided in the movable block 16. A spring 24 is fixedly connected in the movable groove 23. The other end of the spring 24 is fixedly connected to the side surface of the slider 22. The slider 22 is located in the movable groove 23 and is slidably connected to the movable groove 23.
[0026] Specifically, rotating the threaded column 15 causes the rotating block 19 to rotate, which in turn moves the moving block 16 forward. This causes the clamping block 18 to clamp and limit the edge of the cylinder bottom cover, enhancing stability during processing. When the clamping block 18 needs to be replaced, pull the pull block 20 to compress the spring 24 via the slider 22. At the same time, the clamping plate 25 releases the clamping block 27, allowing for replacement. After replacement, release the pull block 20. Under the action of the spring 24, the pull block 20 returns to its original position via the connecting column 21, which in turn returns the clamping plate 25 to its original position, thus locking the clamping block 27.
[0027] Working principle: During use, the position of the adjusting strip 4 is rotated according to the positioning hole of the cylinder bottom cover, and the rotating ring 8 is rotated as needed. After the position of the adjusting strip 4 is adjusted, the position of the rotating ring 8 is fixed by the spur bolt 10, and the positioning pin 5 is inserted into the positioning hole on the cylinder bottom cover. The magnet 9 attracts the cylinder bottom cover, and then the threaded pin 15 is rotated to move the moving block 16, which drives the clamping block 18 to move and clamp the edge of the cylinder bottom cover, making the machining more stable and preventing displacement.
[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A magnetic clamping fixture for machining the flat surface of a hydraulic cylinder bottom cover, characterized in that, include: A base (1) is provided with an adjustment groove (2). A magnet (9) is fixedly connected in the adjustment groove (2). A protective ring (12) is provided on the side surface of the magnet (9). A fixing ring (11) is provided on the outer surface of the protective ring (12). A rotating ring (8) is rotatably connected to the outer surface of the fixing ring (11). A horn bolt (10) is threadedly connected to the side surface of the rotating ring (8). The horn bolt (10) passes through the rotating ring (8) and fits against the outer surface of the fixing ring (11). Four connecting strips (3) are fixedly connected to the side surface of the rotating ring (8). An adjustment strip (4) is rotatably connected to the upper surface of the connecting strip (3) through a rotating column (6). A support column (7) is provided on the adjustment strip (4). A positioning column (5) is fixedly connected to the top of the support column (7). A clamping assembly is provided on the adjustment groove (2).
2. The magnetic suction fixture for machining the flat surface of a hydraulic cylinder bottom cover according to claim 1, characterized in that, The clamping assembly includes a fixing bar (14), on which a threaded post (15) is threadedly connected, and a rotating block (29) is fixedly connected to one end of the threaded post (15) located on the upper surface of the base (1).
3. The magnetic suction fixture for machining the flat surface of a hydraulic cylinder bottom cover according to claim 2, characterized in that, A movable block (16) is slidably connected to the upper surface of the base (1). A rotating groove (28) is provided inside the movable block (16). The rotating block (29) is located inside the rotating groove (28) and is rotatably connected to the rotating groove (28).
4. The magnetic suction fixture for machining the flat surface of a hydraulic cylinder bottom cover according to claim 3, characterized in that, The movable block (16) is provided with a slot, and a card block (27) is engaged in the slot. A connecting block (26) is fixedly connected to the side surface of the card block (27). A fixing block (17) is fixedly connected to the side surface of the connecting block (26) away from the movable block (16). A clamping block (18) is fixedly connected to the side surface of the fixing block (17).
5. The magnetic suction fixture for machining the flat surface of a hydraulic cylinder bottom cover according to claim 3, characterized in that, The movable block (16) is provided with a movable groove (19), and a card plate (25) is slidably connected in the movable groove (19). The card plate (25) is located above the card block (27), and a pull block (20) is fixedly connected to the side surface of the card plate (25).
6. The magnetic suction fixture for machining the flat surface of a hydraulic cylinder bottom cover according to claim 5, characterized in that, A connecting post (21) is fixedly connected to the side surface of the pull block (20), and a slider (22) is fixedly connected to the end of the connecting post (21) away from the pull block (20).
7. The magnetic suction fixture for machining the flat surface of a hydraulic cylinder bottom cover according to claim 6, characterized in that, The movable block (16) is provided with a movable groove (23), and a spring (24) is fixedly connected in the movable groove (23). The other end of the spring (24) is fixedly connected to the side surface of the slider (22). The slider (22) is located in the movable groove (23) and is slidably connected to the movable groove (23).
8. The magnetic suction fixture for machining the flat surface of a hydraulic cylinder bottom cover according to claim 1, characterized in that, The base (1) is provided with a drainage groove (13), which is connected to the adjustment groove (2).