Flexible hydraulic clamp for clamping large shell

Abstract

The utility model discloses a flexible hydraulic clamp for clamping a large shell. The flexible hydraulic clamp comprises a hydraulic base station, a hydraulic support group and a combined clamping accessory, the hydraulic base station provides pressure liquid, the hydraulic supporting group comprises a plurality of supporting mechanisms, a hydraulic telescopic rod (9) is arranged in each supporting mechanism, the lower ends of the supporting mechanisms are communicated with the hydraulic base station, the upper ends of the supporting mechanisms are connected with top supporting blocks (12) through the hydraulic telescopic rods (9), and the top supporting blocks (12) are attached to the surface of a shell through combined clamping accessories. The combined clamp is used for a large shell, has the advantages of a combined clamp and a special clamp, is simple in clamping process, uniform in clamping stress, high in clamping reliability and not prone to deformation of the shell, meanwhile is suitable for clamping of various large shells and box bodies, has an obvious clamping effect on the inner surface grinding procedure of a half shell, and is high in practicability. And the machining quality of the large shell and the box body can be effectively improved, and the stricter machining precision can be guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing technology and relates to a flexible hydraulic clamp for clamping large shells. Background Technology

[0002] Fixtures are fundamental tools in machining processes. Clamping large housings has always been a major challenge in housing machining, presenting problems such as difficulty in fixing them, susceptibility to deformation, and difficulty in controlling precision requirements. Currently, both domestically and internationally, the clamping of large housings primarily employs combination clamping or specialized fixtures. Combination fixtures are suitable for clamping various housing and box-type components, but their disadvantages include: long clamping time (requiring repeated adjustments by the operator), uneven clamping force, poor housing stability, and susceptibility to deformation. Specialized fixtures have limited applicability and high cost, but they address the shortcomings of combination fixtures.

[0003] Regardless of the technical solution or combination mentioned above, the clamping efficiency and reliability are generally not high. Furthermore, when high machining accuracy is required, most manufacturers ensure precision by directly scrapping defective products. Therefore, a widely applicable and highly reliable clamping method is needed to solve these problems. Utility Model Content

[0004] (I) Purpose of the utility model

[0005] The purpose of this invention is to provide a flexible hydraulic clamp for clamping large shells. It combines the advantages of combined clamps and dedicated clamps for large shells, with a simple clamping process, uniform clamping force, high clamping reliability, and resistance to shell deformation. At the same time, it is suitable for clamping various large shells and boxes, and its effect is particularly significant for clamping half shells. It can effectively improve the processing quality and production efficiency of large shells and boxes, and can ensure higher precision processing requirements.

[0006] (2) Technical solution

[0007] To solve the above-mentioned technical problems, this utility model provides a flexible hydraulic clamp for clamping large shells, which includes: a hydraulic base station, a hydraulic support group, and a combination clamping accessory; the hydraulic base station provides pressurized fluid, the hydraulic support group includes multiple support mechanisms, each support mechanism is provided with a hydraulic telescopic rod 9 inside, the lower end of the support mechanism is connected to the hydraulic base station, and the upper end is connected to a top support block 12 through the hydraulic telescopic rod 9, and the top support block 12 is attached to the surface of the shell through the combination clamping accessory.

[0008] The hydraulic base station includes a hydraulic integration plate 2, which is a shell structure with pressurized liquid flowing into its inner cavity. An inlet 1 is provided on one side of the hydraulic integration plate 2.

[0009] Each support mechanism includes a threaded base 3, a bottom cover 4, a hydraulic pipe 5, a spring 6, a pressure cap 7, a detachable hydraulic cylinder 8, a hydraulic telescopic rod 9, and a top support block 12. The threaded base 3 has an external thread on its outer ring, which is fixed to the internal thread at the bottom of the detachable hydraulic cylinder 8. The bottom of the threaded base 3 is rigidly connected to the hydraulic integrated disk 2 and placed on the dot matrix through holes of the hydraulic integrated disk 2 to ensure passage. The upper and lower parts of the hydraulic pipe 5 are respectively provided with a connecting hole. The hydraulic pipe 5 passes through the central hole of the threaded base 3. The bottom of the hydraulic pipe 5 is the bottom cover 4. The spring 6 is sleeved on the outside of the upper part of the hydraulic pipe 5. The top of the hydraulic pipe 5 is the pressure cap 7. After the detachable hydraulic cylinder 8 is assembled with the threaded base 3, a lower cavity and an upper cavity are formed through the through hole. The spring 6 and the pressure cap 7 are located in the lower cavity, and the hydraulic telescopic rod 9 is located in the upper cavity. The detachable hydraulic cylinder 8 presses the spring 6 through the pressure cap 7 to make the connecting hole of the hydraulic pipe 5 pass through, thereby realizing the pressure control of the hydraulic telescopic rod 9.

[0010] The lower cavity of the detachable hydraulic cylinder 8 is provided with a layer of impermeable rubber 10.

[0011] Among them, the piston outer circumference surface at the lower end of the hydraulic telescopic rod 9 is provided with anti-seepage rubber, which contacts the upper cavity inner wall of the detachable hydraulic cylinder 8.

[0012] The upper connecting hole of the hydraulic pipe 5 is connected to the upper cavity of the detachable hydraulic cylinder 8, and the lower connecting hole is connected to the inner cavity of the threaded base 3.

[0013] The hydraulic integrated plate 2 is surrounded by an oil baffle ring, and the notch of the oil baffle ring is a liquid collection port 11, which is used to collect the liquid that leaks out and flows out when the detachable hydraulic cylinder 8 is disassembled.

[0014] The hydraulic integrated plate 2 has a dot matrix of through holes inside the oil baffle ring, which connects the liquid inlet 1 and the inner cavity of the hydraulic integrated plate 2.

[0015] The lower cavity of the detachable hydraulic cylinder 8 is connected to the upper cavity, which serves as the slide rod cavity, through four evenly distributed through holes. The pressurized fluid pushes the hydraulic telescopic rod 9 through the four evenly distributed through holes.

[0016] The detachable hydraulic cylinder 8 is provided with a vent hole at the top to balance the air pressure.

[0017] (3) Beneficial effects

[0018] The flexible hydraulic clamp provided by the above technical solution for clamping large shells has the advantages of both combination clamps and special clamps for large shells. The clamping process is simple, the clamping force is uniform, the clamping reliability is high, and the shell is not easily deformed. At the same time, it is suitable for clamping various large shells and boxes. The clamping effect is particularly significant for the grinding process of the inner surface of half shells. It can effectively improve the processing quality of large shells and boxes and ensure more stringent processing accuracy. Attached Figure Description

[0019] Figure 1 This is a partial sectional view of the assembly drawing of this utility model;

[0020] Figure 2 This is a partial enlarged view of the present invention;

[0021] Figure 3 This is the threaded base of the present invention;

[0022] Figure 4 This utility model relates to a hydraulic pipe;

[0023] Figure 5 Figure 1 is a partial sectional view of the detachable hydraulic cylinder of this utility model; Figure 2b is a top view of Figure 3a.

[0024] Figure 6 This utility model relates to a hydraulic integrated disc;

[0025] Figure 7 This utility model includes a liquid inlet and a liquid collection outlet.

[0026] In the figure, (1) liquid inlet, (2) hydraulic integrated plate, (3) threaded base, (4) bottom cover, (5) hydraulic pipe, (6) spring, (7) pressure cap, (8) detachable hydraulic cylinder, (9) hydraulic telescopic rod, (10) anti-seepage rubber, (11) liquid collection port, (12) top support block. Detailed Implementation

[0027] To make the objectives, contents, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0028] Reference Figures 1 to 7 As shown, the flexible hydraulic clamp for clamping large shells in this embodiment includes: a hydraulic base station, a hydraulic support group, and a combination clamping accessory; the hydraulic base station provides pressurized fluid, the hydraulic support group includes multiple support mechanisms, each support mechanism is provided with a hydraulic telescopic rod 9 inside, the lower end of the support mechanism is connected to the hydraulic base station, and the upper end is connected to the top support block 12 through the hydraulic telescopic rod 9, and the top support block 12 is attached to the shell surface through the combination clamping accessory.

[0029] The hydraulic base station includes a hydraulic integration plate 2, which is a shell structure with pressurized liquid flowing into its inner cavity. An inlet 1 is provided on one side of the hydraulic integration plate 2.

[0030] Each support mechanism includes a threaded base 3, a bottom cover 4, a hydraulic pipe 5, a spring 6, a pressure cap 7, a detachable hydraulic cylinder 8, a hydraulic telescopic rod 9, and a top support block 12. The outer ring of the threaded base 3 is provided with an external thread, which is fixed to the bottom internal thread of the detachable hydraulic cylinder 8. The bottom of the threaded base 3 is rigidly connected to the hydraulic integrated disk 2 and placed on the dot matrix through holes of the hydraulic integrated disk 2 to ensure passage. The upper and lower parts of the hydraulic pipe 5 are respectively provided with a connecting hole. The hydraulic pipe 5 passes through the central hole of the threaded base 3. The bottom of the hydraulic pipe 5 is the bottom cover 4. The spring 6 is sleeved on the outside of the upper part of the hydraulic pipe 5. The top of the hydraulic pipe 5 is the pressure cap 7. After the detachable hydraulic cylinder 8 is assembled with the threaded base 3, a lower cavity and an upper cavity are formed through the through hole. The spring 6 and the pressure cap 7 are located in the lower cavity, and the hydraulic telescopic rod 9 is located in the upper cavity. The detachable hydraulic cylinder 8 presses the spring 6 through the pressure cap 7 to make the connecting hole of the hydraulic pipe 5 pass through, thereby realizing the pressure control of the hydraulic telescopic rod 9.

[0031] A layer of impermeable rubber 10 is provided on the inner wall of the lower cavity of the detachable hydraulic cylinder 8.

[0032] An anti-seepage rubber is provided on the outer circumference of the piston at the lower end of the hydraulic telescopic rod 9, and the anti-seepage rubber contacts the inner wall of the upper cavity of the detachable hydraulic cylinder 8.

[0033] The upper connecting hole of the hydraulic pipe 5 is connected to the upper cavity of the detachable hydraulic cylinder 8, and the lower connecting hole is connected to the inner cavity of the threaded base 3.

[0034] The combined clamping accessories are connected to the top support block 12 to fit the large shell according to the shape of the large shell, such as angle blocks and fastening clamps.

[0035] The hydraulic base station provides pressurized fluid to the support mechanism through the inlet 1; the pressurized fluid pushes the hydraulic telescopic rod 9 through the inlet 1, the inner cavity of the hydraulic integrated plate 2, the threaded base 3, the hydraulic pipe 5, and the detachable hydraulic cylinder 8 to achieve the linear movement of the hydraulic telescopic rod 9.

[0036] The hydraulic integrated plate 2 is surrounded by an oil baffle ring. The notch of the oil baffle ring is a liquid collection port 11, which is used to collect the liquid that leaks out and flows out when the detachable hydraulic cylinder 8 is disassembled. The inside of the oil baffle ring is a dot matrix through hole, which connects the liquid inlet 1 and the inner cavity of the hydraulic integrated plate 2.

[0037] When the detachable hydraulic cylinder 8 and the threaded base 3 are not assembled, the spring 6 is in the extended state, the connecting hole below the hydraulic pipe 5 is blocked by the inner wall of the central hole of the threaded base 3, and the contact surface between the threaded base 3 and the bottom cover 4 is provided with anti-seepage rubber 10 to further prevent pressurized liquid leakage; the bottom of the detachable hydraulic cylinder 8 is threadedly connected and fixed to the threaded base 3, and the contact parts with the threaded base 3, the pressure cover 7 and the contact cavity are all provided with anti-seepage rubber 10 to reduce wear and prevent leakage; the lower cavity of the detachable hydraulic cylinder 8 is connected to the upper cavity, which is the slide rod cavity, through four evenly distributed through holes, and the pressurized liquid pushes the hydraulic telescopic rod 9 through the four evenly distributed through holes. The bottom outer ring of the hydraulic telescopic rod 9 is also provided with anti-seepage rubber, and the top of the detachable hydraulic cylinder 8 is provided with a vent hole to balance the air pressure.

[0038] The hydraulic telescopic rod 9 and the top support block 12 are connected to the combined clamping accessories by threads or directly fixed to the clamped parts by bolts to achieve clamping of the clamped parts.

[0039] The clamping process of the flexible hydraulic clamp for clamping large housings in this embodiment is as follows: During the placement of the large housing, it is in a state of slight pressure, meaning the hydraulic support group can extend and retract according to the shape of the large housing during placement. This slight pressure state can be adjusted according to the mass of the large housing. After the housing is in full contact with the top support block 12, pressure is applied according to the strength, thickness, and mass of the housing material, as well as the number of detachable hydraulic cylinders assembled. After pressurization is complete, the valve is closed, which locks the flexible hydraulic clamp, thus achieving damage-free clamping of the large housing.

[0040] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A flexible hydraulic clamp for clamping large housings, characterized in that, include: Hydraulic base station, hydraulic support group, and combined clamping accessories; The hydraulic base station provides pressurized fluid, and the hydraulic support group includes multiple support mechanisms. Each support mechanism is equipped with a hydraulic telescopic rod (9). The lower end of the support mechanism is connected to the hydraulic base station, and the upper end is connected to the top support block (12) through the hydraulic telescopic rod (9). The top support block (12) is attached to the surface of the shell through a combination of clamping accessories.

2. The flexible hydraulic clamp for clamping large housings as described in claim 1, characterized in that, The hydraulic base station includes a hydraulic integration plate (2), which is a shell structure with pressurized liquid flowing into its inner cavity. An inlet (1) is provided on one side of the hydraulic integration plate (2).

3. The flexible hydraulic clamp for clamping large housings as described in claim 2, characterized in that, Each support mechanism includes a threaded base (3), a bottom cover (4), a hydraulic pipe (5), a spring (6), a pressure cap (7), a detachable hydraulic cylinder (8), a hydraulic telescopic rod (9), and a top support block (12); the outer ring of the threaded base (3) is provided with an external thread, which is fixed to the bottom internal thread of the detachable hydraulic cylinder (8). The bottom of the threaded base (3) is rigidly connected to the hydraulic integrated plate (2) and placed on the dot matrix through holes of the hydraulic integrated plate (2) to ensure passage; the upper and lower parts of the hydraulic pipe (5) are respectively provided with a connecting hole, and the hydraulic pipe (5) passes through the threaded base (3). The bottom of the hydraulic pipe (5) is a bottom cover (4), and the hydraulic pipe (5) is fitted with a spring (6) on the outside of the threaded base (3). The top of the hydraulic pipe (5) is a pressure cap (7). After the detachable hydraulic cylinder (8) is assembled with the threaded base (3), a lower cavity and an upper cavity are formed through a through hole. The spring (6) and the pressure cap (7) are located in the lower cavity, and the hydraulic telescopic rod (9) is located in the upper cavity. The detachable hydraulic cylinder (8) presses the spring (6) through the pressure cap (7) so that the connecting hole of the hydraulic pipe (5) is a passage, thereby realizing the pressure control of the hydraulic telescopic rod (9).

4. The flexible hydraulic clamp for clamping large housings as described in claim 3, characterized in that, A layer of impermeable rubber (10) is provided on the inner wall of the lower cavity of the detachable hydraulic cylinder (8).

5. The flexible hydraulic clamp for clamping large housings as described in claim 4, characterized in that, An anti-seepage rubber is provided on the outer circumference of the piston at the lower end of the hydraulic telescopic rod (9), and the anti-seepage rubber contacts the inner wall of the upper cavity of the detachable hydraulic cylinder (8).

6. The flexible hydraulic clamp for clamping large housings as described in claim 5, characterized in that, The upper part of the hydraulic pipe (5) is connected to the upper cavity of the detachable hydraulic cylinder (8), and the lower part is connected to the inner cavity of the threaded base (3).

7. The flexible hydraulic clamp for clamping large housings as described in claim 6, characterized in that, The hydraulic integrated plate (2) is surrounded by an oil baffle ring, and the notch of the oil baffle ring is a liquid collection port (11) for collecting leakage and liquid flowing out of the disassembly detachable hydraulic cylinder (8).

8. The flexible hydraulic clamp for clamping large housings as described in claim 7, characterized in that, The oil baffle ring of the hydraulic integrated plate (2) has a dot matrix of through holes inside, which connect the inlet (1) and the inner cavity of the hydraulic integrated plate (2).

9. The flexible hydraulic clamp for clamping large housings as described in claim 8, characterized in that, The lower cavity of the detachable hydraulic cylinder (8) is connected to the upper cavity, which serves as the slide rod cavity, through four evenly distributed through holes. The pressurized fluid pushes the hydraulic telescopic rod (9) through the four evenly distributed through holes.

10. The flexible hydraulic clamp for clamping large housings as described in claim 9, characterized in that, The detachable hydraulic cylinder (8) is provided with a vent hole at the top for equalizing air pressure.

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