Oil pressure synchronous self-locking oil cylinder device

Abstract

The invention discloses an oil pressure synchronous self-locking oil cylinder device which comprises a cylinder body, one side of the cylinder body is provided with a clamping area, and during clamping, a part is clamped into the clamping area to achieve clamping of the part; the number of the clamping pieces is two, and the clamping pieces are movably arranged in the cylinder body. One end of the clamping piece moves and protrudes into the clamping area and abuts against the part, and the other end of the clamping piece is seamlessly attached to the interior of the cylinder body; the pushing part is composed of an injection area and an inner cavity channel, the inner cavity channel is provided with an input end and two output ends, the two output ends are communicated with the areas where the two clamping pieces are located respectively, and the input end penetrates to the other side of the cylinder body; two paths of oil or gas are achieved through the two pistons, the cylinder body, the oil nozzle and the inner cavity channel, the pistons act at the same time, deflection caused when a part is clamped due to asynchronous braking structures in the past is eliminated, the whole structure is simple, control is convenient and fast, and it is effectively guaranteed that the two pistons act at the same time, and error-free locking is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of locking devices, and in particular relates to an oil pressure synchronous self-locking cylinder device. Background Art

[0002] In the field of mechanical processing, the general method is that the clamping mechanism is controlled by a hydraulic valve PLC program, and the machine uses a clamping brake pad, a cylinder, and a moving piston to achieve clamping.

[0003] However, traditional locking devices are relatively complex and cannot be applied to the precision range of machine tools and processing fields. It is often necessary to purchase various locking devices from outside and use them in combination with oil, gas, electronic control and machinery to achieve them. There are great limitations in actual applications and there is room for improvement. Summary of the invention

[0004] The object of the present invention is to provide a hydraulic synchronous self-locking cylinder device to solve the problems of the existing locking devices mentioned in the above background technology that the structure is complex and the application range is narrow.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hydraulic synchronous self-locking cylinder device, comprising a cylinder body, a clamping area is opened on one side, and during clamping, the part is clamped into the clamping area to achieve clamping of the part; two clamping members are provided and movably arranged inside the cylinder body; one end of the clamping member moves and protrudes into the clamping area and abuts against the part, thereby achieving clamping of the part, and the other end of the clamping member is seamlessly fitted with the interior of the cylinder body; a pushing part is composed of an injection area and an inner cavity, wherein the inner cavity has an input end and two output ends, and the two output ends are respectively connected to the areas where the two clamping members are located, and the input end passes through the other side of the cylinder body, and the injection area is installed on the input end of the inner cavity, thereby achieving the injection of oil and gas, and synchronously pushing one end of the clamping member to move, and achieving clamping of the part by protruding into the clamping area.

[0006] As a preferred technical solution in the present invention, sliding cavities are opened on both sides of the clamping area toward the two ends of the cylinder body, and the clamping member includes a piston movably arranged in the sliding cavity. The output end of the inner cavity is connected to the sliding cavity, so that the piston is pushed toward the inner direction of the clamping area to achieve clamping of the parts.

[0007] As a preferred technical solution in the present invention, the sliding cavity is in the shape of a step groove, and the end of the piston away from the clamping area is against the step groove part of the sliding cavity, so as to prevent the piston from directly penetrating and falling off. The outer surface of the piston is also provided with a sealing ring, which is seamlessly fitted with the inner wall of the sliding cavity, so as to ensure that when gas or oil is injected through the inner cavity, the piston can be pushed to move.

[0008] As a preferred technical solution in the present invention, sealing covers are installed at both ends of the cylinder body, the output end of the inner cavity passes through the sealing cover and extends into the sliding cavity, and the input end of the inner cavity passes through the middle position of the cylinder body.

[0009] As a preferred technical solution in the present invention, the injection area is an oil nozzle, which is sealed and connected to the input end of the inner cavity. External high-pressure gas or oil is injected through the oil nozzle and discharged into the sliding cavity through the inner cavity, thereby pushing the piston to move.

[0010] As a preferred technical solution in the present invention, two branches are formed between the input end and the two output ends of the inner cavity, and the distance between the two branches is equal, so that the piston can be pushed synchronously and the purpose of synchronous clamping can be achieved.

[0011] As a preferred technical solution in the present invention, a chuck is installed at one end of the piston facing the clamping area through bolts, and the end section of the chuck is circular.

[0012] As a preferred technical solution in the present invention, the centers of the two pistons are on the same straight line, and the piston is T-shaped as a whole, so as to achieve a limit offset with the step groove.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention realizes two-way oil or gas through two pistons, a cylinder body, an oil nozzle and an inner cavity channel. The simultaneous action of the pistons eliminates the asynchronism of the previous brake structure, which causes the deviation when clamping parts. At the same time, the present invention saves brake pads and has a compact structure, which can be flexibly used in a small space. The overall structure is simple and the control is convenient, and it can effectively ensure that the two pistons act simultaneously and lock without error. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 It is a schematic diagram of the end portion of the present invention;

[0017] Figure 3 For the present invention Figure 2 Cross-sectional view at AA in the middle.

[0018] In the figure:

[0019] 100, cylinder body; 101, oil nozzle; 102, sealing cover; 103, clamping area; 104, piston; 105, sealing ring; 106, sliding chamber; 107, chuck; 108, inner cavity. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figures 1 to 3 The present invention provides a technical solution: a hydraulic synchronous self-locking cylinder device, comprising

[0022] The cylinder body 100 has a clamping area 103 on one side. During clamping, the part is clamped into the clamping area 103 to achieve clamping of the part.

[0023] Two clamping members are provided and are movably arranged inside the cylinder body 100; one end of the clamping member moves and protrudes into the clamping area 103 and abuts against the part, thereby clamping the part, while the other end of the clamping member is seamlessly fitted with the inside of the cylinder body 100;

[0024] The pushing part is composed of an injection area and an inner cavity 108, wherein the inner cavity 108 has an input end and two output ends, and the two output ends are respectively connected to the areas where the two clamping parts are located, and the input end passes through to the other side of the cylinder body 100. The injection area is installed on the input end of the inner cavity 108, so as to realize the injection of oil and gas, and simultaneously push one end of the clamping part to move, and realize the clamping of the parts by protruding into the clamping area 103.

[0025] In this embodiment, sliding cavities 106 are opened on both sides of the clamping area 103 toward the two ends of the cylinder body 100. The clamping member includes a piston 104 movably arranged in the sliding cavity 106. The output end of the inner cavity 108 is connected to the sliding cavity 106, thereby pushing the piston 104 toward the interior direction of the clamping area 103 to achieve clamping of the parts.

[0026] In this embodiment, the sliding cavity 106 is in the shape of a stepped groove, and the end of the piston 104 away from the clamping area 103 abuts against the stepped groove part of the sliding cavity 106, thereby preventing the piston 104 from directly penetrating and falling off. The outer surface of the piston 104 is also provided with a sealing ring 105, and the sealing ring 105 is seamlessly fitted with the inner wall of the sliding cavity 106, thereby ensuring that when gas or oil is injected through the inner cavity 108, the piston 104 can be pushed to move.

[0027] In this embodiment, sealing covers 102 are installed at both ends of the cylinder body 100 , the output end of the inner cavity 108 passes through the sealing covers 102 and extends into the sliding cavity 106 , and the input end of the inner cavity 108 passes through the middle of the cylinder body 100 .

[0028] In this embodiment, the injection area is an oil nozzle 101, which is sealed and connected to the input end of the inner cavity 108. External high-pressure gas or oil is injected through the oil nozzle 101 and discharged into the sliding cavity 106 through the inner cavity 108, thereby pushing the piston 104 to move.

[0029] In this embodiment, two branches are formed between the input end and the two output ends of the inner cavity 108, and the distance between the two branches is equal, so that the piston 104 can be pushed synchronously and the purpose of synchronous clamping can be achieved.

[0030] In this embodiment, a clamp 107 is mounted on one end of the piston 104 facing the clamping area 103 through bolts, and the end section of the clamp 107 is circular.

[0031] In this embodiment, the centers of the two pistons 104 are on the same straight line, and the piston 104 is T-shaped as a whole, so as to achieve a limit offset with the step groove.

[0032] Although embodiments of the present invention have been shown and described (see the above detailed description for details), it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic synchronous self-locking cylinder device, characterized in that: include The cylinder body (100) has a clamping area (103) on one side; Two clamping members are provided and are movably arranged inside the cylinder body (100); one end of the clamping member moves and protrudes into the clamping area (103) and abuts against the part, while the other end of the clamping member is seamlessly fitted with the inside of the cylinder body (100); The pushing part is composed of an injection area and an inner cavity (108), wherein the inner cavity (108) has an input end and two output ends, and the two output ends are respectively connected to the areas where the two clamping parts are located, and the input end passes through to the other side of the cylinder body (100), and the injection area is installed on the input end of the inner cavity (108).

2. The hydraulic synchronous self-locking cylinder device according to claim 1, characterized in that: A sliding cavity (106) is formed on both sides of the clamping area (103) toward both ends of the cylinder body (100), and the clamping member includes a piston (104) movably arranged in the sliding cavity (106), and the output end of the inner cavity (108) is connected to the sliding cavity (106).

3. The hydraulic synchronous self-locking cylinder device according to claim 2, characterized in that: The sliding cavity (106) is in the shape of a stepped groove, and the end of the piston (104) away from the clamping area (103) is against the stepped groove part of the sliding cavity (106). The outer surface of the piston (104) is also provided with a sealing ring (105), and the sealing ring (105) is seamlessly fitted with the inner wall of the sliding cavity (106).

4. The hydraulic synchronous self-locking cylinder device according to claim 1, characterized in that: Sealing covers (102) are also installed at both ends of the cylinder body (100), the output end of the inner cavity (108) passes through the sealing cover (102) and extends into the sliding cavity (106), and the input end of the inner cavity (108) passes through the middle position of the cylinder body (100).

5. The hydraulic synchronous self-locking cylinder device according to claim 4, characterized in that: The injection area is an oil nozzle (101), and the oil nozzle (101) is sealedly connected to the input end of the inner cavity (108).

6. The hydraulic synchronous self-locking cylinder device according to claim 4, characterized in that: Two branches are formed between the input end and the two output ends of the inner cavity (108), and the distance between the two branches is equal.

7. The hydraulic synchronous self-locking cylinder device according to claim 2, characterized in that: One end of the piston (104) facing the clamping area (103) is mounted with a clamp (107) via bolts, and the end section of the clamp (107) is circular.

8. The hydraulic synchronous self-locking cylinder device according to claim 2, characterized in that: The centers of the two pistons (104) are on the same straight line, and the piston (104) is T-shaped as a whole.

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