Zero-position air cylinder pressing and clamping jig

Abstract

The utility model discloses a zero-position air cylinder pressing and clamping jig, which relates to the technical field of machining and manufacturing and comprises a fixed base, a movable pressing block is connected to the inner side of the fixed base in a sliding manner, and a machining workpiece is arranged between the movable pressing block and the fixed base; one side of the fixed base is fixedly connected with a cylinder, and the output end of the cylinder is fixedly connected with a cylinder piston rod. By arranging the air cylinder, the air cylinder piston rod, the piston connecting rod, the piston rod connecting shaft, the movable pressing block, the fixed base, the first connecting shaft and the pressing block connecting rod, a machined workpiece can be effectively and rapidly fixed and clamped, the air cylinder drives the air cylinder piston rod to move to push the piston connecting rod to move, and finally the pressing block connecting rod is pushed to move. When the two pressing block connecting rods are located on the same line at a zero angle, the self-locking function can be achieved, so that the movable pressing block and the fixed base cannot be loosened when a clamped machined workpiece is subjected to the action of the external force, and the clamping effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing and manufacturing, in particular to a zero-position cylinder pressing and clamping tool. Background Art

[0002] Cylinder clamping fixtures mainly use the air pressure or hydraulic pressure generated by the cylinder to drive the mechanical structure to achieve the clamping, positioning and clamping of the workpiece. It is widely used in production lines such as mechanical processing, assembly, and testing, and can significantly improve production efficiency and processing accuracy.

[0003] When existing clamping jigs are used, parts are mostly clamped and fixed by manual clamping, which leads to low efficiency in the clamping process, slow production efficiency, and defects such as loose clamping.

[0004] Therefore, it is necessary to invent a zero-position cylinder clamping fixture to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a zero-position cylinder clamping fixture, which can effectively and quickly fix and clamp the workpiece by arranging a cylinder, a cylinder piston rod, a piston connecting rod, a piston rod connecting shaft, a movable pressure block, a fixed base, a first connecting shaft and a pressure block connecting rod. The cylinder drives the cylinder piston rod to move and pushes the piston connecting rod to move, and finally pushes the pressure block connecting rod to move. When the two pressure block connecting rods are in a straight line with zero angle, a self-locking function can be achieved, so that the clamped workpiece cannot be loosened from the movable pressure block and the fixed base no matter how much external force is applied, thereby improving the clamping effect, so as to solve the problem that the existing clamping fixtures proposed in the above background technology, when in use, mostly clamp and fix the parts by manual clamping, resulting in low efficiency in the clamping process, slow efficiency in producing products, and defects such as loose clamping.

[0006] According to one aspect of the present disclosure, the following technical solution is provided: a zero-position cylinder clamping fixture, comprising a fixed base, a movable pressing block is slidably connected to the inner side of the fixed base, and a workpiece is arranged between the movable pressing block and the fixed base;

[0007] A cylinder is fixedly connected to one side of the fixed base, a cylinder piston rod is fixedly connected to the output end of the cylinder, a connecting block is fixedly connected to the other end of the cylinder piston rod, piston connecting rods are arranged on both sides of the connecting block, and a pressure block connecting rod is arranged on the top of the piston connecting rod.

[0008] According to a zero-position cylinder clamping fixture of at least one embodiment of the present disclosure, piston rod connecting shafts are arranged on both sides of the top of the connecting block, the piston connecting rod is arranged at the bottom end of the piston rod connecting shaft, and the piston rod connecting shaft is arranged on the inner side of the piston connecting rod and the piston rod connecting shaft, and the piston connecting rod and the piston rod connecting shaft are rotatably connected to each other.

[0009] According to a zero-position cylinder clamping fixture of at least one embodiment of the present disclosure, the piston connecting rod is arranged at the bottom end of the pressure block connecting rod, and two pressure block connecting rods are symmetrically arranged. A first connecting shaft is arranged on the inner side of the two pressure block connecting rods and the piston connecting rod, and the two pressure block connecting rods and the piston connecting rod are rotatably connected to each other.

[0010] According to a zero-position cylinder clamping fixture of at least one embodiment of the present disclosure, a second connecting shaft is provided on the inner side of a pressure block connecting rod, a through groove is provided on the inner side of the movable pressure block, and the second connecting shaft is provided on the inner side of the through groove.

[0011] According to a zero-position cylinder clamping fixture of at least one embodiment of the present disclosure, two guide rods are symmetrically fixedly connected to the bottom end of the fixed base, and the movable pressure block is slidably connected to the outer side of the guide rods.

[0012] Technical effects and advantages of the utility model:

[0013] (1) The utility model can effectively and quickly fix and clamp the workpiece by arranging a cylinder, a cylinder piston rod, a piston connecting rod, a piston rod connecting shaft, a movable pressure block, a fixed base, a first connecting shaft and a pressure block connecting rod. The cylinder drives the cylinder piston rod to move and pushes the piston connecting rod to move, and finally pushes the pressure block connecting rod to move. When the two pressure block connecting rods are in a straight line with zero angle, a self-locking function can be realized, so that the clamped workpiece cannot loosen the movable pressure block and the fixed base no matter how much external force is applied to it, thereby improving the clamping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings illustrate exemplary embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0015] Figure 1 It is a schematic diagram of the overall structure of a zero-position cylinder clamping fixture according to an embodiment of the present disclosure.

[0016] Figure 2 It is a schematic diagram of the top structure of a zero-position cylinder clamping fixture according to an embodiment of the present disclosure.

[0017] The specific reference numerals in the figure are:

[0018] 1. Processing workpiece; 2. Cylinder; 3. Cylinder piston rod; 4. Piston connecting rod; 5. Piston rod connecting shaft; 6. Moving pressure block; 7. Fixed base; 8. First connecting shaft; 9. Pressure block connecting rod; 10. Connecting block; 11. Through groove; 12. Second connecting shaft; 13. Guide rod. DETAILED DESCRIPTION

[0019] like Figure 1-Figure 2 As shown, a zero-position cylinder clamping fixture disclosed in the present invention comprises a fixed base 7, a movable pressing block 6 is slidably connected to the inner side of the fixed base 7, and a workpiece 1 is arranged between the movable pressing block 6 and the fixed base 7;

[0020] One side of the fixed base 7 is fixedly connected with a cylinder 2, an output end of the cylinder 2 is fixedly connected with a cylinder piston rod 3, and the other end of the cylinder piston rod 3 is fixedly connected with a connecting block 10, piston connecting rods 4 are arranged on both sides of the connecting block 10, and a pressure block connecting rod 9 is arranged on the top of the piston connecting rod 4. By arranging the cylinder 2, the cylinder piston rod 3, the piston connecting rod 4, the piston rod connecting shaft 5, the movable pressure block 6, the fixed base 7, the first connecting shaft 8 and the pressure block connecting rod 9, the workpiece 1 can be effectively and quickly fixed and clamped. The cylinder 2 drives the cylinder piston rod 3 to move and pushes the piston connecting rod 4 to move, and finally pushes the pressure block connecting rod 9 to move. When the two pressure block connecting rods 9 are in a straight line with zero angle, a self-locking function can be realized, so that the clamped workpiece 1 cannot loosen the movable pressure block 6 and the fixed base 7 no matter how much external force is applied, thereby improving the clamping effect;

[0021] Piston rod connecting shafts 5 are provided on both sides of the top of the connecting block 10, the piston connecting rod 4 is provided at the bottom end of the piston rod connecting shaft 5, the piston rod connecting shaft 5 is provided on the inner side of the piston connecting rod 4 and the piston rod connecting shaft 5, the piston connecting rod 4 and the piston rod connecting shaft 5 are rotatably connected to each other, the piston connecting rod 4 is provided at the bottom end of the pressure block connecting rod 9, two pressure block connecting rods 9 are symmetrically provided, the first connecting shaft 8 is provided on the inner side of the two pressure block connecting rods 9 and the piston connecting rod 4, the two pressure block connecting rods 9 and the piston connecting rod 4 are rotatably connected to each other, by providing the piston rod connecting shaft 5, the piston connecting rod 4 and the connecting block 10 can rotate with each other and can be transmitted, and similarly, the provision of the first connecting shaft 8 can effectively make the piston connecting rod 4 and the pressure block connecting rod 9 rotate with each other and can be transmitted.

[0022] A second connecting shaft 12 is arranged on the inner side of a pressure block connecting rod 9, a through groove 11 is arranged on the inner side of the movable pressure block 6, and the second connecting shaft 12 is arranged on the inner side of the through groove 11. By setting the second connecting shaft 12, the second connecting shaft 12 is arranged on the inner side of a pressure block connecting rod 9, and the second connecting shaft 12 is arranged on the inner side of the through groove 11, so that the pressure block connecting rod 9 can rotate on the outer side of the second connecting shaft 12 and on the inner side of the through groove 11, and the other pressure block connecting rod 9 is rotatably arranged on the inner side of the pressure block connecting rod 9, and is also limited by the second connecting shaft 12. At the same time, the two pressure block connecting rods 9 are also rotatably arranged with each other through the setting of the first connecting shaft 8.

[0023] The bottom end of the fixed base 7 is symmetrically fixedly connected to two guide rods 13, and the movable pressure block 6 is slidably connected to the outside of the guide rods 13, which can effectively increase the sliding stability of the movable pressure block 6.

[0024] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present disclosure, and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A zero-position cylinder clamping fixture, characterized in that: It comprises a fixed base (7), the inner side of which is slidably connected to a movable pressing block (6), and a workpiece (1) is arranged between the movable pressing block (6) and the fixed base (7); One side of the fixed base (7) is fixedly connected to a cylinder (2), the output end of the cylinder (2) is fixedly connected to a cylinder piston rod (3), the other end of the cylinder piston rod (3) is fixedly connected to a connecting block (10), piston connecting rods (4) are arranged on both sides of the connecting block (10), and a pressure block connecting rod (9) is arranged at the top end of the piston connecting rod (4).

2. A zero-position cylinder clamping fixture according to claim 1, characterized in that: A piston rod connecting shaft (5) is provided on both sides of the top end of the connecting block (10); the piston connecting rod (4) is provided at the bottom end of the piston rod connecting shaft (5); the piston rod connecting shaft (5) is provided on the inner side of the piston connecting rod (4) and the piston rod connecting shaft (5); and the piston connecting rod (4) and the piston rod connecting shaft (5) are rotatably connected to each other.

3. A zero-position cylinder clamping fixture according to claim 2, characterized in that: The piston connecting rod (4) is arranged at the bottom end of the pressure block connecting rod (9), and two pressure block connecting rods (9) are symmetrically arranged. A first connecting shaft (8) is arranged on the inner side of the two pressure block connecting rods (9) and the piston connecting rod (4), and the two pressure block connecting rods (9) and the piston connecting rod (4) are rotatably connected to each other.

4. The zero-position cylinder clamping fixture according to claim 3 is characterized in that: A second connecting shaft (12) is arranged on the inner side of one of the pressure block connecting rods (9), a through slot (11) is arranged on the inner side of the movable pressure block (6), and the second connecting shaft (12) is arranged on the inner side of the through slot (11).

5. The zero-position cylinder clamping fixture according to claim 4 is characterized in that: Two guide rods (13) are symmetrically fixedly connected to the bottom end of the fixed base (7), and the movable pressing block (6) is slidably connected to the outer sides of the guide rods (13).

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