CN210265349U

CN210265349U - Four-axis cylinder

Info

Publication number: CN210265349U
Application number: CN201921319296.8U
Authority: CN
Inventors: 陈旭闽; 焦中良; 谢华军; 林振宇; 陈坤勇
Original assignee: Blch Pneumatic Science & Technology Co ltd
Current assignee: Blch Pneumatic Science & Technology Co ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-04-07
Anticipated expiration: 2029-08-14

Abstract

The utility model relates to a four-axis cylinder, be the cylinder subassembly of cross setting on the valve body including valve body, four, the cylinder subassembly including setting up cylinder body on the valve body, setting up cylinder cap on the cylinder body, the activity set up in the cylinder body the piston, with piston linkage complex piston rod, the lateral wall of piston and valve body between be formed with no pole chamber, piston and cylinder cap between be formed with the pole chamber, the valve body on be provided with first interface, the second interface of ventilating respectively, the valve body on be provided with the first gas circuit that is linked together with the no pole chamber of each cylinder subassembly respectively, the valve body on be provided with the second gas circuit that extends to each cylinder subassembly respectively, the cylinder body of each cylinder subassembly on be provided with the third gas circuit of intercommunication between second gas circuit and the pole chamber respectively. The utility model has the advantages of simple structure, stable and reliable performance, simple operation, long service life and low cost.

Description

Four-axis cylinder

Technical Field

The utility model relates to a pneumatic element technical field, concretely relates to four-axis cylinder.

Background

The cylinder is an element which converts the pressure energy of compressed air into mechanical energy and drives the mechanism to do linear reciprocating motion, swinging motion and rotating motion, and is also called as a pneumatic actuator. The existing air cylinder has single function, when four-direction simultaneous operation (clamping and transmission) needs to be realized, 4 air cylinders need to be installed, 8 exhaust throttle valves, a plurality of pipeline connecting pieces, air pipes and the like, the pipelines are complex, the difficulty of tidy pipe distribution is high, the operation speed is controlled or the four directions are approximately simultaneously operated, the 8 exhaust throttle valves need to be adjusted, the operation is very inconvenient, the difficulty is very high, the cost is high, and therefore, the air cylinder capable of realizing four-direction simultaneous operation is researched and developed to be very necessary.

Disclosure of Invention

An object of the utility model is to overcome prior art's defect, provide a simple structure, stable performance is reliable, simple operation, long service life, with low costs four-axis cylinder.

For realizing above-mentioned mesh, the utility model discloses a four-axis cylinder, be the cylinder subassembly of cross setting on the valve body including valve body, four, the cylinder subassembly including setting up cylinder body on the valve body, setting up cylinder cap, the activity on the cylinder body sets up the piston in the cylinder body, with piston linkage complex piston rod, the lateral wall of piston and valve body between be formed with no pole chamber, piston and cylinder cap between be formed with the pole chamber, the valve body on be provided with first interface, the second interface of ventilating respectively, the valve body on be provided with the first gas circuit that is linked together with the no pole chamber of each cylinder subassembly respectively, the valve body on be provided with the second gas circuit that extends to each cylinder subassembly respectively, the cylinder body of each cylinder subassembly on be provided with the third gas circuit of intercommunication between second gas circuit and the pole chamber respectively.

The beneficial effect of above-mentioned structure is: four cylinder assemblies are arranged around the valve body, so that the function of simultaneous operation in four directions can be realized, the traditional complex pipeline is simplified, only 2 exhaust throttle valves need to be installed, the piston rods in four directions can be guaranteed to move approximately synchronously without adjustment, the operation speed can be controlled only by adjusting 2 exhaust throttle valves, the cost is saved, and the operation is simple and convenient. When the four-axis cylinder works and the first ventilation interface is ventilated, compressed air respectively enters four pistons of a rodless cavity pair of the four cylinder assemblies through a first air passage in the valve body to do work simultaneously, and piston rods in four directions extend out simultaneously; when the second air passage is used for ventilation, compressed air enters the rod cavities of the four air cylinder assemblies through the second air passage and the third air passage in the valve body to simultaneously apply work to the four pistons, and the piston rods in the four directions retract simultaneously, so that the four-axis air cylinder has the function of simultaneously operating in the four directions. Thereby this four-axis cylinder has simple structure, stable performance is reliable, simple operation, long service life, advantage with low costs.

In particular, the piston is respectively provided with a sealing ring and a wear-resisting ring which are matched with the inner wall of the cylinder body, and the cylinder body and the piston are in sealing fit. The sealing ring is arranged between the piston and the cylinder body, the airtight effect is better, and the wear-resisting ring can play a role in protecting the piston, so that the service life of the piston is prolonged.

In particular, one end of the piston rod is provided with a connecting part which passes through the through hole of the cylinder cover and extends outside the cylinder body, and the connecting part is provided with a threaded hole for connecting with external equipment. The piston rod is provided with a connecting part, so that the four-shaft air cylinder is convenient to mount.

Particularly, an oil-retaining bearing is arranged in a through hole of the cylinder cover, and the connecting part of the piston rod penetrates through the oil-retaining bearing and extends out of the cylinder body. The piston rod is arranged in the oil-containing bearing, and the oil-containing bearing has the advantages of low cost, vibration absorption and low noise, so that the noise of the four-axis cylinder is reduced.

Particularly, the cylinder cover is clamped in the opening of the cylinder body, an O-shaped ring is arranged between the cylinder cover and the cylinder body, the cylinder body is in sealing fit with the cylinder cover, and a check ring which is abutted to the outer wall of the cylinder cover is arranged in the opening of the cylinder body. The cylinder cover and the cylinder body are connected in a clamping and matching mode, so that the cylinder body and the cylinder cover can be assembled conveniently, the check ring is added, and the cylinder body and the cylinder cover can be connected more compactly.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a sectional view taken along line a-a of fig. 1.

Detailed Description

As shown in fig. 1 and 2, the embodiment of the present invention is a four-axis cylinder, which comprises a valve body 10, four cylinder assemblies 20 arranged on the valve body 10 in a cross shape, the cylinder assembly 20 comprises a cylinder body 21 hermetically arranged on the valve body 10, a cylinder cover 22 arranged on the cylinder body 21, a piston 23 movably arranged in the cylinder body 21, and a piston rod 24 in linkage fit with the piston 23, a rodless cavity 200 is formed between the piston 23 and the side wall of the valve body 21, a rod cavity 201 is formed between the piston 23 and the cylinder cover 22, the valve body 10 is respectively provided with a first vent interface 11 and a second vent interface 12, the valve body 10 is respectively provided with a first air passage 13 communicated with the rodless cavity 200 of each cylinder assembly 20, the valve body 10 is respectively provided with a second air passage 14 extending to each cylinder assembly 20, the cylinder body 21 of each cylinder assembly 20 is provided with a third air passage 15 communicated between the second air passage 14 and the rod chamber 201. The piston 23 is provided with a sealing ring 231 and a wear-resistant ring 232 which are matched with the inner wall of the cylinder 21 respectively, and the cylinder 21 and the piston 23 are in sealing matching. The sealing ring is arranged between the piston and the cylinder body, the airtight effect is better, and the wear-resisting ring can play a role in protecting the piston, so that the service life of the piston is prolonged. One end of the piston rod 24 has a connecting portion 241, the connecting portion 241 passes through the through hole 221 of the cylinder cover 22 and extends outside the cylinder body 21, and a threaded hole 242 for connecting with an external device is provided on the connecting portion 241. The piston rod is provided with a connecting part, so that the four-shaft air cylinder is convenient to mount. An oil-containing bearing 222 is arranged in the through hole 221 of the cylinder cover 22, and the connecting part 241 of the piston rod 24 penetrates through the oil-containing bearing 222 and extends out of the cylinder body 21. The piston rod is arranged in the oil-containing bearing, and the oil-containing bearing has the advantages of low cost, vibration absorption and low noise, so that the noise of the four-axis cylinder is reduced. The cylinder cover 22 is clamped in the opening of the cylinder body 21, an O-shaped ring 211 is arranged between the cylinder cover 22 and the cylinder body 21, the cylinder body 21 and the cylinder cover 22 are in sealing fit, and a retaining ring 212 abutting against the outer wall of the cylinder cover 22 is arranged in the opening of the cylinder body 21. The cylinder cover and the cylinder body are connected in a clamping and matching mode, so that the cylinder body and the cylinder cover can be assembled conveniently, the check ring is added, and the cylinder body and the cylinder cover can be connected more compactly.

Four cylinder assemblies are arranged around the valve body, so that the function of simultaneous operation in four directions can be realized, the traditional complex pipeline is simplified, only 2 exhaust throttle valves need to be installed, the piston rods in four directions can be guaranteed to move approximately synchronously without adjustment, the operation speed can be controlled only by adjusting 2 exhaust throttle valves, the cost is saved, and the operation is simple and convenient. When the four-axis cylinder works and the first ventilation interface is ventilated, compressed air respectively enters four pistons of a rodless cavity pair of the four cylinder assemblies through a first air passage in the valve body to do work simultaneously, and piston rods in four directions extend out simultaneously; when the second air passage is used for ventilation, compressed air enters the rod cavities of the four air cylinder assemblies through the second air passage and the third air passage in the valve body to simultaneously apply work to the four pistons, and the piston rods in the four directions retract simultaneously, so that the four-axis air cylinder has the function of simultaneously operating in the four directions. Thereby this four-axis cylinder has simple structure, stable performance is reliable, simple operation, long service life, advantage with low costs.

Claims

1. The utility model provides a four-axis cylinder which characterized in that: the valve comprises a valve body and four air cylinder assemblies arranged on the valve body in a cross shape, wherein each air cylinder assembly comprises a cylinder body arranged on the valve body, a cylinder cover arranged on the cylinder body, a piston movably arranged in the cylinder body and a piston rod in linkage fit with the piston, a rodless cavity is formed between the piston and the side wall of the valve body, a rod cavity is formed between the piston and the cylinder cover, a first ventilation interface and a second ventilation interface are respectively arranged on the valve body, a first air passage communicated with the rodless cavity of each air cylinder assembly is respectively arranged on the valve body, a second air passage extending to each air cylinder assembly is respectively arranged on the valve body, and a third air passage communicated between the second air passage and the rod cavity is respectively arranged on the cylinder body of each air cylinder assembly.

2. The four-axis cylinder of claim 1, characterized in that: the piston is respectively provided with a sealing ring and a wear-resisting ring which are matched with the inner wall of the cylinder body, and the cylinder body is in sealing fit with the piston.

3. The four-axis cylinder of claim 1 or 2, characterized in that: one end of the piston rod is provided with a connecting part, the connecting part penetrates through a through hole of the cylinder cover and extends outside the cylinder body, and a threaded hole used for being connected with external equipment is formed in the connecting part.

4. The four-axis cylinder of claim 3, characterized in that: the through hole of cylinder cap in be provided with the oiliness bearing, the connecting portion of piston rod pass the oiliness bearing and extend outside the cylinder body.

5. The four-axis cylinder of claim 1 or 2, characterized in that: the cylinder cap block in the opening of cylinder body, and be provided with O type circle between cylinder cap and the cylinder body, and constitute the sealed cooperation of cylinder body and cylinder cap, and be provided with the retaining ring of contradicting on the outer wall of cylinder cap in the opening of cylinder body.