Closed hydraulic dynamic clamp for detection experiment

Abstract

The utility model belongs to the technical field of clamps, and particularly relates to a closed hydraulic dynamic clamp for a detection experiment, which comprises a jaw seat, a cylinder barrel fixedly connected to the lower end face of the jaw seat, an end cover fixedly connected to the lower end face of the cylinder barrel, a piston arranged in the end cover and the cylinder barrel, and a piston arranged in the piston. A lifting connecting disc is fixedly connected to the upper end face of the piston, a clamping guide seat is arranged on the upper end face of the lifting connecting disc, a clamping mechanism is arranged at the upper end of the clamping guide seat, a guide plate is arranged in the jaw seat, a clamp is arranged on the inner end face of the guide plate, and the lower end of the clamp is fixedly connected to the clamping guide seat. And the clamp is fixedly connected with the guide plate through a connecting bolt. The jaw seat, the jaw seat fixing hole, the cylinder barrel, the end cover, the piston and the clamping mechanism are combined, so that the structure is simple, and disassembly and maintenance are convenient; no other accessory equipment is arranged, so that the manufacturing and using cost of the equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a closed hydraulic dynamic clamp for detection experiments. Background Art

[0002] A hydraulic dynamic fixture is a device used to secure and clamp workpieces. Its operating principle is to utilize hydraulic transmission technology to achieve workpiece clamping and positioning. A hydraulic dynamic fixture typically consists of a hydraulic cylinder, a fixture body, a positioning mechanism, and a clamping mechanism. The hydraulic cylinder enables the fixture body to move and rotate, clamping and positioning the workpiece. The positioning mechanism ensures the workpiece's precise position in the fixture, while the clamping mechanism prevents the workpiece from loosening or moving during processing.

[0003] The following problems exist:

[0004] Most of the existing hydraulic dynamic clamps are open hydraulic dynamic clamps, which have relatively complex structures, high manufacturing costs, and many auxiliary equipment. The hydraulic system is not easy to disassemble during regular maintenance and care, making maintenance difficult. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the utility model provides a closed hydraulic dynamic clamp for detection experiments, which solves the problems of relatively complex structure, high manufacturing cost, many auxiliary equipment, and difficulty in disassembly and maintenance.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a closed hydraulic dynamic clamp for detection experiments, comprising a jaw seat, the lower end face of the jaw seat is fixedly connected to a cylinder, the lower end face of the cylinder is fixedly connected to an end cover, pistons are provided inside the end cover and the cylinder, the upper end face of the piston is fixedly connected to a lifting connecting plate, the upper end face of the lifting connecting plate is provided with a clamping guide seat, and the upper end of the clamping guide seat is provided with a clamping mechanism.

[0007] As an optimal technical solution of the present invention, the clamping mechanism includes a clamp, a guide plate, and a connecting bolt. A guide plate is provided inside the jaw seat, and a clamp is provided on the inner end face of the guide plate. The lower end of the clamp is fixedly connected to the clamping guide seat, and the clamp and the guide plate are connected and fixed by connecting bolts.

[0008] As an optimal technical solution of the present invention, a jaw seat fixing hole is provided on the outside of the jaw seat, a jaw seat cylinder connection hole is provided on the lower end surface of the jaw seat, and a lifting ring connection screw hole is provided on the upper end surface of the jaw seat.

[0009] As an optimal technical solution of the present invention, the lower end face of the cylinder is provided with a cylinder end cover connecting hole, the interior of the cylinder is provided with a cylinder inner sealing cavity, and the circumference of the cylinder is provided with oil inlet holes, and the oil inlet holes include an upper oil inlet hole and a lower oil inlet hole.

[0010] As a preferred technical solution of the present invention, the upper end surface of the piston is provided with a connecting hole, the lower end surface of the piston is provided with a piston fixing hole, and the circumference of the piston is provided with a piston outer sealing platform.

[0011] As a preferred technical solution of the present invention, an end cover inner sealing cavity is provided inside the end cover, and a cylinder end cover connecting hole is provided at the lower part of the end cover.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The utility model is assembled by arranging a jaw seat, a jaw seat fixing hole, a cylinder, an end cover, a piston, and a clamping mechanism, so that the structure is simple and easy to disassemble and maintain; there is no other auxiliary equipment, thereby reducing the manufacturing and use cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the isometric structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the AA section position of the utility model;

[0016] Figure 3 This is a schematic diagram of the AA cross-section structure of the utility model when clamping;

[0017] Figure 4 This is a schematic diagram of the AA cross-section structure of the utility model when it is opened;

[0018] Figure 5 This is a schematic diagram of the AA cross-sectional structure of the jaw seat of the utility model;

[0019] Figure 6 This is a schematic diagram of the AA section structure of the cylinder of the utility model;

[0020] Figure 7 This is a schematic diagram of the AA cross-sectional structure of the end cover of the utility model;

[0021] Figure 8 This is a schematic diagram of the bottom view of the end cover of the utility model;

[0022] Figure 9 This is a schematic diagram of the AA cross-sectional structure of the piston of the present invention.

[0023] In the figure: 1. Jaw seat; 3. Screw hole for connecting the lifting ring; 4. Oil inlet hole; 401. Upper oil inlet hole; 402. Lower oil inlet hole; 5. Cylinder; 6. End cover; 7. Piston; 8. Clamping mechanism; 801. Clamp; 802. Guide plate; 803. Connecting bolt; 9. Connecting hole of cylinder end cover; 10. Lifting connecting plate; 11. Connecting hole; 12. Fixing hole of jaw seat; 13. Clamping guide seat; 14. Sealing chamber in end cover; 15. Fixing hole of piston; 16. Sealing chamber in cylinder; 17. Connecting hole of jaw seat and cylinder; 18. Piston sealing platform. DETAILED DESCRIPTION

[0024] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0025] Example

[0026] See also Figure 1-9 The utility model provides the following technical solutions: a closed hydraulic dynamic clamp for detection experiments, including a jaw seat 1, the lower end surface of the jaw seat 1 is fixedly connected to a cylinder 5, the lower end surface of the cylinder 5 is fixedly connected to an end cover 6, a piston 7 is provided inside the end cover 6 and the cylinder 5, the upper end surface of the piston 7 is fixedly connected to a lifting connecting plate 10, the upper end surface of the lifting connecting plate 10 is provided with a clamping guide seat 13, and the upper end of the clamping guide seat 13 is provided with a clamping mechanism 8.

[0027] In this embodiment, the jaw seat 1 and the cylinder 5 are connected by threaded bolts, two connecting holes are symmetrically provided, a guide groove is provided at the lower part of the clamping guide seat 13, and a connecting groove is provided at the bottom of the piston 7 for connecting other equipment.

[0028] Specifically, the clamping mechanism 8 includes a clamp 801, a guide plate 802, and a connecting bolt 803. The guide plate 802 is provided inside the jaw seat 1, and the inner end face of the guide plate 802 is provided with a clamp 801. The lower end of the clamp 801 is fixedly connected to the clamping guide seat 13, and the clamp 801 and the guide plate 802 are connected and fixed by a connecting bolt 803.

[0029] In this embodiment, the connecting bolt 803 is a hexagon socket bolt, the guide plate 802 moves along the inner wall of the jaw seat 1 during operation, and two clamping guide seats 13 are symmetrically arranged.

[0030] Specifically, a jaw seat fixing hole 12 is provided on the outside of the jaw seat 1 , a jaw seat cylinder connection hole 17 is provided on the lower end surface of the jaw seat 1 , and a lifting ring connection screw hole 3 is provided on the upper end surface of the jaw seat 1 .

[0031] In this embodiment, twelve jaw seat fixing holes 12 are evenly spaced and used to lock the jaw seat for easy assembly and disassembly.

[0032] Specifically, the lower end surface of the cylinder 5 is provided with a cylinder end cover connecting hole 9, the interior of the cylinder 5 is provided with a cylinder inner sealing cavity 16, and the circumference of the cylinder 5 is provided with oil inlet holes 4, which include an upper oil inlet hole 401 and a lower oil inlet hole 402.

[0033] In this embodiment, the upper oil inlet hole 401 and the lower oil inlet hole 402 are provided with threads for connecting to the oil valve, and the lower end surface of the cylinder 5 is provided with a 20° chamfer.

[0034] Specifically, a connecting hole 11 is provided on the upper end surface of the piston 7 , a piston fixing hole 15 is provided on the lower end surface of the piston 7 , and a piston sealing platform 18 is provided on the circumference of the piston 7 .

[0035] In this embodiment, the connecting hole 11 is used to connect the lifting connecting plate 10 and the piston 7. The piston outer sealing platform 18 and the piston 7 are cast as one piece. The upper and lower end faces of the piston 7 are both provided with a 20° chamfer, and the angle between the piston outer sealing platform 18 and the piston 7 is set to 104°.

[0036] Specifically, an end cover inner sealing cavity 14 is provided inside the end cover 6 , and a cylinder end cover connecting hole 9 is provided at the lower portion of the end cover 6 .

[0037] In this embodiment, the upper portion of the end cover 6 is provided with a chamfer of 152°, twelve cylinder end cover connecting holes 9 are provided, and the end cover 6 and the end cover sealing cavity 14 are cast as one piece.

[0038] The working principle and usage process of the present utility model are as follows: the staff installs the end of the equipment piston 7 on the detection equipment, and then connects the oil pump to the upper oil inlet hole 401 and the lower oil inlet hole 402, and then controls the oil pump to allow oil to flow into the upper oil inlet hole 401, so that the piston 7 moves downward, thereby driving the lifting connecting plate 10 and the clamping guide seat 13 to move downward, driving the clamping mechanism 8 to move downward to separate the clamp 801, and then placing the material to be tested into the two clamps 801, and then controlling the oil pump to allow oil to flow into the lower oil inlet hole 402. Under the action of oil pressure, the piston 7 moves upward, thereby driving the lifting connecting plate 10 and the clamping guide seat 13 to move upward, so that the clamp 801 clamps the material to be tested, completing the working process.

[0039] Finally, it should be noted that the above description is merely 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 will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A closed hydraulic dynamic clamp for testing experiments, comprising a jaw seat (1), characterized in that: The lower end surface of the jaw seat (1) is fixedly connected to a cylinder (5), the lower end surface of the cylinder (5) is fixedly connected to an end cover (6), a piston (7) is provided inside the end cover (6) and the cylinder (5), the upper end surface of the piston (7) is fixedly connected to a lifting connection plate (10), the upper end surface of the lifting connection plate (10) is provided with a clamping guide seat (13), and the upper end of the clamping guide seat (13) is provided with a clamping mechanism (8); the clamping mechanism (8) includes a clamp (801), a guide plate (802), and a connecting bolt (803). A guide plate (802) is provided inside the jaw seat (1), a clamp (801) is provided on the inner end surface of the guide plate (802), the lower end of the clamp (801) is fixedly connected to the clamping guide seat (13), and the clamp (801) and the guide plate (802) are connected and fixed by a connecting bolt (803); a jaw seat fixing hole (12) is provided on the outside of the jaw seat (1), a jaw seat cylinder connection hole (17) is provided on the lower end surface of the jaw seat (1), and a lifting ring connection screw hole (3) is provided on the upper end surface of the jaw seat (1).

2. A closed hydraulic dynamic fixture for testing experiments according to claim 1, characterized in that: The lower end surface of the cylinder (5) is provided with a cylinder end cover connecting hole (9), the interior of the cylinder (5) is provided with a cylinder inner sealing cavity (16), and the circumference of the cylinder (5) is provided with an oil inlet hole (4), and the oil inlet hole (4) includes an upper oil inlet hole (401) and a lower oil inlet hole (402).

3. The closed hydraulic dynamic fixture for testing experiments according to claim 1, characterized in that: The upper end surface of the piston (7) is provided with a connecting hole (11), the lower end surface of the piston (7) is provided with a piston fixing hole (15), and the circumference of the piston (7) is provided with a piston outer sealing platform (18).

4. A closed hydraulic dynamic fixture for testing experiments according to claim 1, characterized in that: An end cover inner sealing cavity (14) is provided inside the end cover (6), and a cylinder end cover connecting hole (9) is provided at the lower portion of the end cover (6).

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