Pneumatic clamp for upper joint

Abstract

The utility model provides an upper connector pneumatic clamp, and belongs to the technical field of pneumatic clamps. The problems that in the prior art, sealing reliability is poor, an air path is single, and multiple air cylinders or complex clamping actions cannot be expanded are solved. The pneumatic clamping device comprises an installation base, a pneumatic clamping unit and an air path interface module, a plurality of installation holes are formed in the installation base, the pneumatic clamping unit comprises an air cylinder barrel, a piston rod, a piston assembly, a piston end cover and a base supporting block, and an upper connector and a lower connector are formed at the upper end and the lower end of the piston end cover respectively. The upper connector and the lower connector are communicated with each other, the upper connector is sleeved with the piston assembly, the piston rod penetrates through the upper connector and the lower connector, the piston assembly is covered with the air cylinder barrel, the driving connector is installed at the upper end of the base supporting block, the piston rod is connected with the driving connector, and the air path interface module is fixedly installed on the side face of the installation base. The multi-station synchronous clamping device has the advantages of multi-station synchronous clamping and good sealing effect.

Description

Technical Field

[0001] This utility model belongs to the field of pneumatic clamp technology and relates to an upper connector pneumatic clamp. Background Technology

[0002] The top-connector pneumatic clamp is a high-efficiency clamping device driven by air pressure and adapted to automated production lines. It can be seamlessly connected to an air source or equipment through a quick-connect interface on the top to achieve precise positioning and rapid clamping of workpieces.

[0003] Chinese patent publication number CN204844660U discloses a pneumatic clamp, including a body. One side of the body is provided with a handle, and the other side is provided with a mounting part. The end of the mounting part is provided with a mounting hole for inserting hardware parts. The body is provided with a guide positioning hole for aligning and mounting on a mold. The body is provided with a first air passage communicating with the mounting hole. The handle is provided with a second air passage communicating with the first air passage. The second air passage is connected to an air pipe for connecting high-pressure air through a sealing joint fixed to the bottom of the handle. The first air passage is a through hole that is crisscrossed horizontally and vertically and penetrates the body. A sealing plug is inserted into the through hole opening located on the surface of the body.

[0004] In the pneumatic clamp provided by this patent, the horizontal and vertical through-hole air passages rely on the insertion of sealing plugs, resulting in poor sealing reliability. Furthermore, the air path is singular, only driving a single station and unable to be expanded to multiple cylinders or complex clamping actions. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned problems in the existing technology by providing an upper connector pneumatic clamp.

[0006] The objective of this utility model can be achieved through the following technical solution: A pneumatic clamp for an upper connector, comprising a mounting base, a pneumatic clamping unit, and an air interface module. The mounting base is rectangular and has several mounting holes. The number of pneumatic clamping units is several, each including a cylinder, a piston rod, a piston assembly, a piston end cap, and a base support block. The piston end cap has an upper connector and a lower connector formed at its upper and lower ends, respectively. The upper and lower connectors have open holes and are interconnected. The piston assembly is sleeved on the outside of the upper connector. The piston rod passes through the upper and lower connectors and is fixed to the upper end of the piston assembly. The cylinder is covered on the outside of the piston assembly. A drive connector is installed on the upper end of the base support block. The piston rod extends out of the lower connector and connects to the drive connector. The air interface module is fixedly installed on the side of the mounting base.

[0007] In the aforementioned pneumatic clamp for the upper connector, a sealing groove is provided at the lower end of the cylinder.

[0008] In the aforementioned pneumatic clamp for the upper connector, a sealing base is formed on the upper end of the piston end cap, and the lower end face of the cylinder barrel is in contact with the upper end face of the sealing base.

[0009] In the above-mentioned pneumatic clamp for the upper connector, a number of end cap bolts are fixedly installed in the piston end cap, and the end cap bolts are fixedly connected to the mounting base.

[0010] In the above-mentioned pneumatic clamp for the upper connector, the base support block is in contact with the lower end face of the mounting base, and support block bolts are fixedly installed in the mounting base and the base support block.

[0011] Compared with the prior art, the pneumatic clamp for the upper connector provided by this utility model has the following advantages: 1. The mounting base integrates multiple pneumatic clamping units, and multiple air sources are distributed through the air circuit interface module, supporting synchronous clamping at multiple workstations; 2. The sealing groove at the lower end of the cylinder is tightly fitted with the sealing base of the piston end cover, and is rigidly fixed with the end cover bolts, which greatly reduces the leakage rate. Each pneumatic unit is rigidly connected to the mounting base through the support block bolts and the end cover bolts. The sealing accuracy still maintains high coaxiality under vibration environment, the uniformity of clamping force is improved, and it is suitable for high-precision machining scenarios. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the pneumatic clamping unit structure and its exploded structure.

[0014] In the diagram: 1. Mounting base; 11. Mounting hole; 2. Pneumatic clamping unit; 21. Cylinder barrel; 211. Sealing groove; 22. Piston rod; 23. Piston assembly; 24. Piston end cap; 241. Upper connector; 242. Lower connector; 243. Sealing base; 25. Base support block; 3. Air circuit interface module; 4. Drive connector; 5. End cap bolt; 6. Support block bolt. Detailed Implementation

[0015] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0016] like Figures 1 to 2 As shown, this embodiment includes a mounting base 1, which is rectangular in shape and has a plurality of mounting holes 11 evenly distributed on it. The mounting holes 11 are used to fix and install the pneumatic clamping unit 2.

[0017] like Figures 1 to 2As shown, the number of pneumatic clamping units 2 is the same as the number of mounting holes 11. Each pneumatic clamping unit 2 includes a cylinder 21, a piston rod 22, a piston assembly 23, a piston end cap 24, and a base support block 25. The piston end cap 24 forms an upper connector 241 and a lower connector 242 at its upper and lower ends, respectively. The upper connector 241 and the lower connector 242 have open structures inside and are interconnected, providing a channel for the piston rod 22 to pass through and for airflow to pass through. The piston assembly 23 is sleeved on the outside of the upper connector 241, and the piston rod... Piston rod 22 passes through upper connector 241 and lower connector 242 in sequence, and the upper end of piston rod 22 is fixed to the upper end of piston assembly 23. Cylinder 21 covers the outside of piston assembly 23 to form a closed working space. Drive connector 4 is installed on the upper end of base support block 25. After piston rod 22 extends out of lower connector 242, it connects to drive connector 4. The piston assembly 23 is pushed by the change of air pressure in cylinder 21, which in turn drives piston rod 22 and drive connector 4 to move, realizing pneumatic clamping function.

[0018] To elaborate further, such as Figures 1 to 2 As shown, a sealing groove 211 is provided at the lower end of the cylinder barrel 21. Sealing rings and other sealing components can be installed in the sealing groove 211. Together with the sealing base 243 formed at the upper end of the piston end cover 24, when the lower end face of the cylinder barrel 21 is in contact with the upper end face of the sealing base 243, gas leakage can be effectively prevented, ensuring the working efficiency and stability of the pneumatic clamping unit 2.

[0019] To elaborate further, such as Figures 1 to 2 As shown, several end cap bolts 5 are fixedly installed through the piston end cap 24. After passing through the piston end cap 24, the end cap bolts 5 are fixedly connected to the mounting base 1, which securely installs the piston end cap 24 on the mounting base 1 and ensures the overall structural stability of the pneumatic clamping unit 2. The base support block 25 is in contact with the lower end face of the mounting base 1. Support block bolts 6 are fixedly installed in the mounting base 1 and the base support block 25 to further strengthen the connection strength between the base support block 25 and the mounting base 1, so that the entire pneumatic clamp remains stable during operation.

[0020] To elaborate further, such as Figures 1 to 2 As shown, each pair of pneumatic clamping units 2 is equipped with an air path interface module 3. The air path interface module 3 is fixedly installed on the side of the mounting base 1 and is used to connect to an external air source to introduce compressed air into the pneumatic clamping unit 2 to provide power for the operation of the pneumatic clamp. By reasonably arranging the air path interface modules 3, it is possible to achieve independent control or collaborative operation of each pneumatic clamping unit 2 to meet different usage requirements.

[0021] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0022] Although this document uses a variety of terms, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.

Claims

1. A pneumatic clamp for an upper connector, comprising a mounting base (1), a pneumatic clamping unit (2), and a pneumatic interface module (3), characterized in that: The mounting base (1) is rectangular and has several mounting holes (11). The number of pneumatic clamping units (2) is several. Each pneumatic clamping unit (2) includes a cylinder (21), a piston rod (22), a piston assembly (23), a piston end cap (24), and a base support block (25). The piston end cap (24) has an upper connector (241) and a lower connector (242) at its upper and lower ends, respectively. The upper connector (241) and the lower connector (242) have open holes inside. The piston assembly (23) is sleeved on the outside of the upper connector (241). The piston rod (22) passes through the upper connector (241) and the lower connector (242), and the upper end of the piston rod (22) is fixed to the upper end of the piston assembly (23). The cylinder (21) is covered on the outside of the piston assembly (23). The upper end of the base support block (25) is equipped with a drive connector (4). The piston rod (22) extends out of the lower connector (242) and is connected to the drive connector (4). The air circuit interface module (3) is fixedly installed on the side of the mounting base (1).

2. The pneumatic clamp for the upper connector according to claim 1, characterized in that: A sealing groove (211) is provided at the lower end of the cylinder barrel (21).

3. The pneumatic clamp for the upper connector according to claim 1, characterized in that: A sealing base (243) is formed on the upper end of the piston end cap (24), and the lower end face of the cylinder barrel (21) is in contact with the upper end face of the sealing base (243).

4. The pneumatic clamp for the upper connector according to claim 1, characterized in that: Several end cap bolts (5) are fixedly installed in the piston end cap (24), and the end cap bolts (5) are fixedly connected to the mounting base (1).

5. A pneumatic clamp for an upper connector according to claim 1, characterized in that: The base support block (25) is in contact with the lower end face of the mounting base (1), and support block bolts (6) are fixedly installed in the mounting base (1) and the base support block (25).

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