Integrated cylinder rear clamp

Abstract

The utility model relates to the field of pneumatic chucks, in particular to an integrated air cylinder rear clamp which comprises a fixing unit, a rotating unit is rotationally arranged on the fixing unit and comprises a guide assembly, a chuck body is installed at the end of one side of the guide assembly, and the guide assembly comprises an integrated guide block outer cover. The integrated guide block outer cover is integrally machined and formed, and the parallelism error of the height of the end faces of the four piston rod assemblies, the upper push rod above the piston rod assemblies, the short push rod above the piston rod assemblies, the axis of the cylinder body and the axis of the integrated guide block outer cover is small. The consistency of the stroke and thrust of the air cylinder is more easily guaranteed, smooth sliding of the first flange plate and the second flange plate on the upper portion in the push rod moving cavity is further guaranteed, the overall structure of the cylinder sleeve and the integrated guide block outer cover are integrally formed, the cost can be reduced, meanwhile, the assembling process is autonomous and controllable, the product quality can be improved, and the product competitiveness is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic chucks, in particular to an integrated cylinder rear chuck. Background Art

[0002] A pneumatic chuck is a clamp powered by air pressure, primarily used in automated machining, simplifying installation and reducing equipment costs. The pneumatic chuck is a type of pneumatic chuck used to clamp pipes.

[0003] The cylinder back chuck is also known as the pneumatic back chuck. It is mainly composed of a fixed part and a rotating part. The fixed part is mainly the bearing seat, and the rotating part is mainly the guide assembly and the claw assembly. The rotating part is installed on the bearing seat through the bearing. It rotates during pipe processing and the air source drives the cylinder to achieve the clamping and loosening of the pipe.

[0004] Currently, most guide assemblies use four finished cylinders, and two are installed in the guide block cover in a group. The cylinders are telescopically driven to drive the synchronization mechanism and the lever mechanism, thereby pushing the chuck sliding block to achieve the clamping and loosening of the claw assembly. It is the core component of the entire rear chuck. However, there are many cylinder manufacturers, with large price differences and uneven process levels, resulting in unstable cylinder performance and affecting the overall performance of the chuck. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an integrated cylinder rear clamp.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] The integrated cylinder rear clamp includes a fixed unit, a rotating unit rotatably provided on the fixed unit, the rotating unit including a guide assembly, a chuck body being mounted at one end of the guide assembly, the guide assembly including an integrated guide block housing, a push rod movable cavity being defined within the integrated guide block housing, a cylinder mounting cavity being defined on one side of the push rod movable cavity, and a plurality of through holes being evenly defined between the push rod movable cavity and the cylinder mounting cavity;

[0008] A plurality of cylinder bodies are installed in the cylinder installation cavity, and a piston rod assembly is arranged inside the cylinder body, and each set of opposite piston rod assemblies is respectively provided with a long push rod and a short push rod;

[0009] The cylinder body comprises a cylinder liner, a cylinder cover is mounted on one side of the cylinder liner, a piston rod assembly is arranged in the cylinder liner, and a sealing member is arranged on the outer wall of the cylinder liner.

[0010] In addition, a preferred structure is that the fixing unit includes a bearing seat, and the guide assembly is rotatably arranged on the bearing seat.

[0011] In addition, a preferred structure is that a protective cover is provided on the outer wall of one end of the integrated guide block outer cover close to the chuck body, and a driven gear is installed on the other end of the integrated guide block outer cover away from the chuck body.

[0012] In addition, a preferred structure is that a hole elastic ring is provided on a surface of the cylinder head away from the cylinder liner, and an air pipe joint is provided on the cylinder head.

[0013] In addition, a preferred structure is that the long push rod and the short push rod are arranged in the push rod active cavity.

[0014] In addition, the preferred structure is that a second flange plate is installed at the other end of the long push rod away from the piston rod assembly, and a first flange plate is installed at the other end of the short push rod away from the piston rod assembly, the first flange plate is located above the second flange plate, the top ends of the first flange plate and the second flange plate are located in the same plane, and the first flange plate and the second flange plate are connected to the chuck body.

[0015] In addition, a preferred structure is that the driven gear includes a mounting plate, and an air path distributor is provided on the mounting plate.

[0016] The beneficial effects of the present invention are as follows: the integrated guide block outer cover of the present invention is integrally processed and formed, and the end face heights of the four piston rod assemblies and the upper push rod and short push rod above them, and the parallelism errors of the cylinder axis and the axis of the overall guide block outer cover are small, which makes it easier to ensure the consistency of the cylinder stroke and thrust, thereby ensuring the smooth sliding of the first flange plate and the second flange plate above in the push rod active cavity, and the overall structure of the cylinder sleeve and the integrated guide block outer cover are integrally formed, which can reduce costs. At the same time, the assembly process is autonomous and controllable, which can improve product quality and thus enhance product competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the cylinder rear card;

[0018] Figure 2 This is a schematic diagram of the structure after the cylinder rear card is disassembled;

[0019] Figure 3 The schematic diagram of the structure after the guide component is disassembled;

[0020] Figure 4 This is a structural diagram showing the long push rod and the short push rod installed at the bottom of the chuck body;

[0021] Figure 5 Schematic diagram of the structure of the integrated guide block cover Figure 1 ;

[0022] Figure 6 Schematic diagram of the structure of the integrated guide block cover Figure 2 ;

[0023] Figure 7 Schematic diagram of the structure of the integrated guide block cover Figure 3 ;

[0024] Figure 8 Schematic diagram of the structure after the long push rod and the short push rod are separated from the first flange plate and the second flange plate;

[0025] Figure 9 Schematic diagram of the structure of the cylinder block;

[0026] Figure 10 It is a structural diagram of the cylinder body and piston rod assembly after being disassembled;

[0027] Figure 11 Schematic diagram of the structure of the cylinder block;

[0028] Figure 12 Schematic diagram of the driven gear structure Figure 1 ;

[0029] Figure 13 Schematic diagram of the driven gear structure Figure 2 .

[0030] In the figure: 001 fixed unit, 002 rotating unit, 01 bearing seat, 02 guide assembly, 03 chuck body, 04 claw assembly, 1 integrated guide block outer cover, 11 push rod movable chamber, 12 cylinder mounting chamber, 13 through hole, 2 protective cover, 3 cylinder block, 31 cylinder liner, 32 cylinder head, 33 elastic retaining ring for hole, 34 air pipe joint, 4 long push rod, 5 short push rod, 6 piston rod assembly, 7 first flange plate, 8 second flange plate, 9 driven gear, 91 air path distributor, 92 mounting plate. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] Reference Figure 1-13, an integrated cylinder rear clamp, including a fixed unit 001, a rotating unit 002 is rotatably provided on the fixed unit 001, the rotating unit 002 includes a guide assembly 02, a chuck body 03 is installed at one end of the guide assembly 02, the guide assembly 02 includes an integrated guide block outer cover 1, a push rod movable cavity 11 is provided in the integrated guide block outer cover 1, a cylinder mounting cavity 12 is provided on one side of the push rod movable cavity 11, a plurality of through holes 13 are evenly provided between the push rod movable cavity 11 and the cylinder mounting cavity 12, a plurality of cylinder bodies 3 are installed in the cylinder mounting cavity 12, a piston rod assembly 6 is provided inside the cylinder body 3, and each group of opposite piston rod assemblies 6 is respectively provided with a long push rod 4 and a short push rod 5, and the long push rod 4 and the short push rod 5 are used to push the flange plate to move.

[0033] Furthermore, the cylinder body 3 includes a cylinder liner 31, a cylinder head 32 is mounted on one side of the cylinder liner 31, a piston rod assembly 6 is disposed within the cylinder liner 31, a seal 10 is disposed on the outer wall of the cylinder liner 31, and the cylinder head 31 is mounted at the rear end of the cylinder liner 31 to improve the sealing of the cylinder body.

[0034] Moreover, the fixing unit 001 includes a bearing seat 01, and the guide assembly 02 is rotatably arranged on the bearing seat 01.

[0035] In addition, a protective cover 2 is provided on the outer wall of the integrated guide block outer cover 1 close to one end of the chuck body 03, and a driven gear 9 is installed on the other end of the integrated guide block outer cover 1 away from the chuck body 03. The driven gear 9 facilitates the rotation of the guide assembly 02.

[0036] In addition, a hole elastic ring 33 is provided on the surface of the cylinder head 32 on one side away from the cylinder sleeve 31, and an air pipe joint 34 is provided on the cylinder head 32 to facilitate the connection of the air pipe, thereby performing pneumatic drive.

[0037] At the same time, the long push rod 4 and the short push rod 5 are arranged in the push rod activity chamber 11.

[0038] Moreover, a second flange plate 8 is installed at the other end of the long push rod 4 away from the piston rod assembly 6, and a first flange plate 7 is installed at the other end of the short push rod 5 away from the piston rod assembly 6. The first flange plate 7 is located above the second flange plate 8, and the top ends of the first flange plate 7 and the second flange plate 8 are both located in the same plane. The first flange plate 7 and the second flange plate 8 are connected to the chuck body 03. The long push rod 4 and the short push rod 5 are pneumatically pushed by the piston rod assembly 6 below, so as to slide in the push rod active cavity 11, and the first flange plate 7 and the second flange plate 8 on the top can ensure the movement synchronization of the cylinder's piston rod assembly 6 during pushing, thereby ensuring the centering of the clamping of the same group of claws.

[0039] In addition, the driven gear 9 includes a mounting plate 92 , on which an air path distributor 91 is provided.

[0040] In this embodiment, the long push rod 4 and the short push rod 5 are pneumatically pushed by the piston rod assembly 6 below, thereby sliding in the push rod active cavity 11, and the first flange plate 7 and the second flange plate 8 on the top can ensure the synchronization of the movement of the piston rod assembly 6 of the cylinder during pushing, thereby ensuring the concentricity of the clamping of the same group of claws.

[0041] In the present invention, the integrated guide block outer cover 1 is integrally processed and formed, and the end face heights of the four piston rod assemblies 6 and the upper push rod 4 and the short push rod 5 above them, and the parallelism errors of the cylinder axis and the axis of the overall guide block outer cover are small, which makes it easier to ensure the consistency of the cylinder stroke and thrust, thereby ensuring the smooth sliding of the upper first flange plate 7 and the second flange plate 8 in the push rod active cavity 11, and the overall structure of the cylinder sleeve 31 is integrally formed with the integrated guide block outer cover 1, which can reduce costs. At the same time, the assembly process is autonomous and controllable, which can improve product quality and thus enhance product competitiveness.

[0042] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An integrated cylinder rear clamp, comprising a fixed unit (001), a rotating unit (002) rotatably provided on the fixed unit (001), characterized in that: The rotating unit (002) includes a guide assembly (02), a chuck body (03) is installed at one end of the guide assembly (02), the guide assembly (02) includes an integrated guide block outer cover (1), a push rod movable cavity (11) is provided in the integrated guide block outer cover (1), a cylinder installation cavity (12) is provided on one side of the push rod movable cavity (11), and a plurality of through holes (13) are evenly provided between the push rod movable cavity (11) and the cylinder installation cavity (12); A plurality of cylinder bodies (3) are installed in the cylinder installation cavity (12), a piston rod assembly (6) is provided inside the cylinder body (3), and each set of opposing piston rod assemblies (6) is provided with a long push rod (4) and a short push rod (5); The cylinder body (3) includes a cylinder sleeve (31), a cylinder head (32) is mounted on one side of the cylinder sleeve (31), a piston rod assembly (6) is arranged in the cylinder sleeve (31), and a sealing member (10) is arranged on the outer wall of the cylinder sleeve (31).

2. The integrated cylinder rear clamp according to claim 1, characterized in that: The fixing unit (001) comprises a bearing seat (01), and the guide assembly (02) is rotatably arranged on the bearing seat (01).

3. The integrated cylinder rear clamp according to claim 1, characterized in that: A protective cover (2) is provided on the outer wall of the one-piece guide block outer cover (1) close to one end of the chuck body (03), and a driven gear (9) is installed on the other end of the one-piece guide block outer cover (1) away from the chuck body (03).

4. The integrated cylinder rear clamp according to claim 1, characterized in that: A hole elastic retaining ring (33) is provided on a surface of a side of the cylinder head (32) away from the cylinder sleeve (31), and a gas pipe joint (34) is provided on the cylinder head (32).

5. The integrated cylinder rear clamp according to claim 1, characterized in that: The long push rod (4) and the short push rod (5) are arranged in a push rod active cavity (11).

6. The integrated cylinder rear clamp according to claim 5, characterized in that: The other end of the long push rod (4) away from the piston rod assembly (6) is installed with a second flange plate (8), and the other end of the short push rod (5) away from the piston rod assembly (6) is installed with a first flange plate (7), the first flange plate (7) is located above the second flange plate (8), the top ends of the first flange plate (7) and the second flange plate (8) are located in the same plane, and the first flange plate (7) and the second flange plate (8) are connected to the chuck body (03).

7. The integrated cylinder rear clamp according to claim 3, characterized in that: The driven gear (9) comprises a mounting plate (92), and an air path distributor (91) is provided on the mounting plate (92).

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