阅读说明：本技术 具有导向功能的气液增压缸 (Gas-liquid pressure cylinder with guiding function ) 是由 黄维斌 金征宇 于 2019-09-24 设计创作，主要内容包括：本发明公开了一种具有导向功能的气液增压缸,包括预压气缸、增压气缸以及连接预压气缸与增压气缸的中间体,所述预压气缸包括预压缸体、设置于预压缸体内的活塞杆以及固设于活塞杆的预压活塞,所述预压缸体的两端分别设置有第一法兰和第二法兰,所述第一法兰上设有排气孔、第二法兰上设有进气孔,所述活塞杆从第一法兰穿出且中间体上连接有储油桶,所述预压气缸的外壁滑移设置有导向滑轨,所述导向滑轨往复滑移且滑移方向与活塞杆的伸缩方向平行设置,所述导向滑轨与活塞杆固定连接。本发明具有以下优点和效果：本发明可对移动的活塞杆进行导向,从而延长增压缸的使用寿命、减少需要高精度导向机械的设计开发成本和减少设备体积。(The invention discloses a gas-liquid pressure cylinder with a guiding function, which comprises a pre-pressing cylinder, a pressure cylinder and an intermediate body for connecting the pre-pressing cylinder and the pressure cylinder, wherein the pre-pressing cylinder comprises a pre-pressing cylinder body, a piston rod arranged in the pre-pressing cylinder body and a pre-pressing piston fixedly arranged on the piston rod, a first flange and a second flange are respectively arranged at two ends of the pre-pressing cylinder body, an exhaust hole is formed in the first flange, an air inlet hole is formed in the second flange, the piston rod penetrates out of the first flange, an oil storage barrel is connected to the intermediate body, a guiding slide rail is arranged on the outer wall of the pre-pressing cylinder in a sliding mode, the guiding slide rail slides in a reciprocating mode, the sliding direction is. The invention has the following advantages and effects: the invention can guide the moving piston rod, thereby prolonging the service life of the pressure cylinder, reducing the design and development cost of a high-precision guide machine and reducing the volume of equipment.)

1. The utility model provides a gas-liquid pressure cylinder with direction function, includes gas-liquid pressure cylinder body, gas-liquid pressure cylinder body includes pre-compaction cylinder, pressure cylinder and connects pre-compaction cylinder and pressure cylinder's midbody, pre-compaction cylinder includes the pre-compaction cylinder body, sets up the piston rod in the pre-compaction cylinder body and sets firmly the pre-compaction piston in the piston rod, the both ends of pre-compaction cylinder body are provided with first flange and second flange respectively, be equipped with the inlet port on exhaust hole, the second flange on the first flange, the piston rod is worn out and is connected with the oil storage bucket on the midbody from first flange, its characterized in that: the outer wall of the gas-liquid pressure cylinder body is provided with a guide sliding rail, the sliding direction of the guide sliding rail is parallel to the telescopic direction of the piston rod, and the guide sliding rail is fixedly connected with the piston rod.

2. the gas-liquid pressure cylinder with a guide function according to claim 1, characterized in that: the guide sliding rails are arranged in a plurality of surrounding modes around the circle center of the piston rod, and the guide sliding rails are fixedly connected with the piston rod through connecting pieces.

3. The gas-liquid pressure cylinder with a guide function according to claim 1, characterized in that: including setting firmly in the flange of pre-compaction cylinder, the direction slide rail is including setting up in the guide hole of flange and wearing to establish the slide bar of sliding fit with the guide hole, slide bar and piston rod fixed connection.

4. The gas-liquid pressure cylinder with a guide function according to claim 3, characterized in that: the flanges are arranged in a plurality along the axial direction of the piston rod.

5. The gas-liquid pressure cylinder with a guide function according to claim 3, characterized in that: and the guide sleeve is fixedly arranged on the wall of the guide hole and is in sliding fit with the sliding rod.

6. The gas-liquid pressure cylinder with the guiding function according to claim 5, characterized in that: the guide sleeve comprises a linear bearing.

7. The gas-liquid pressure cylinder with a guide function according to claim 3, characterized in that: the connecting piece is fixedly connected with the sliding rod and is in threaded connection with the piston rod.

8. The gas-liquid pressure cylinder with a guide function according to claim 1, characterized in that: the supercharging cylinder comprises a supercharging cylinder body, a supercharging rod arranged in the supercharging cylinder body and a supercharging piston fixedly arranged on the supercharging rod, and a third flange and a fourth flange are arranged at two ends of the supercharging cylinder body respectively.

9. The gas-liquid pressure cylinder with a guiding function according to claim 8, characterized in that: the intermediate body comprises a cylinder body, a middle rod arranged in the cylinder body and a hydraulic piston fixedly arranged on the middle rod, the middle rod penetrates through a second flange to be fixedly connected with a piston rod, and the cylinder body is connected with a third flange and the second flange.

10. The gas-liquid pressure cylinder with a guide function according to claim 1, characterized in that: including setting firmly in the flange of pre-compaction cylinder, the direction slide rail is including setting up in the slide rail of flange and with the slide rail complex sliding block that slides, sliding block and piston rod fixed connection.

Technical Field

The invention relates to the technical field of pressure cylinders, in particular to a gas-liquid pressure cylinder with a guiding function.

Background

The booster cylinder is formed by integrally combining an oil pressure cylinder and a booster, and the low pressure of the air pressure is increased by tens of times by using the air pressure as power and utilizing the proportion of the sectional areas of the large piston and the small piston of the booster to supply the oil pressure cylinder for use so as to achieve the high pressure of the hydraulic cylinder.

The existing gas-liquid pressure cylinder has the disadvantages of low axial precision and small axial eccentric stress of a piston rod due to the production process and tolerance fit.

When the connection precision between the piston rod and the driven member is deviated, the piston rod can form lateral stress in the moving process (the stress direction of the piston rod and the moving direction of the piston rod are not on the axis of the piston rod), and local abrasion can be generated between the pre-pressing piston and the pre-pressing cylinder body, so that the sealing and the service life between the pre-pressing piston and the pre-pressing cylinder body are influenced. And the spare part of pressure cylinder itself has certain manufacturing, fit tolerance, if the tolerance is too big plus the lateral force on the piston rod, will further increase wearing and tearing to reduce pressure cylinder's life.

The modern advanced manufacturing process, most of cold stamping manufacturing and automation equipment need higher positioning precision, the guiding precision of the common gas-liquid pressure cylinder cannot meet the existing production process, and all the equipment needing high-precision positioning are additionally provided with a high-precision guiding sliding rail at the front end of the gas-liquid pressure cylinder, so that the equipment is increased in size, more in non-standard parts and long in design period.

Disclosure of Invention

The invention aims to provide a gas-liquid pressure cylinder with a guiding function, which can prolong the service life of the pressure cylinder, reduce the parts of equipment, reduce the volume of the equipment, reduce the design and the production period of automation equipment, achieve the integration and modularization of the equipment and facilitate the installation and maintenance of the equipment.

The technical purpose of the invention is realized by the following technical scheme: the utility model provides a gas-liquid pressure cylinder with direction function, includes gas-liquid pressure cylinder body, gas-liquid pressure cylinder body includes pre-compaction cylinder, pressure cylinder and connects pre-compaction cylinder and pressure cylinder's midbody, pre-compaction cylinder includes the pre-compaction cylinder body, sets up the piston rod in the pre-compaction cylinder body and sets firmly in the pre-compaction piston of piston rod, the both ends of pre-compaction cylinder body are provided with first flange and second flange respectively, be equipped with the inlet port on exhaust hole, the second flange on the first flange, the piston rod is worn out and be connected with the oil storage bucket on the midbody from first flange, the outer wall of gas-liquid pressure cylinder body is provided with the direction slide rail that leads, the slip direction of direction slide rail and the flexible direction parallel arrangement of piston rod.

Through adopting above-mentioned technical scheme, slide and set up the direction slide rail that sets up in pre-compaction cylinder outer wall and play direction and limiting displacement to the piston rod in moving, avoid the yawing force that receives on the piston rod through the direction slide rail, avoid the motion deviation that the piston rod leads to because of the atress through the spacing of direction slide rail, improve the direction precision, improve the range of application to reduce the local wear that the pre-compaction piston caused in the motion process, prolong the life of pressurized cylinder.

Further setting the following steps: the guide sliding rails are arranged in a plurality of surrounding modes around the circle center of the piston rod, and the guide sliding rails are fixedly connected with the piston rod through connecting pieces.

Through adopting above-mentioned technical scheme, encircle the direction slide rail that sets up and can play better direction and limiting displacement to the piston rod to increase this guide structure's stability, make it carry out better bearing to the effort, thereby further reduce the atress on the piston rod, prolong the life of pressure cylinder, improve direction precision and axial eccentric atress.

Further setting the following steps: including setting firmly in the flange of pre-compaction cylinder, the direction slide rail is including setting up in the guide hole of flange and wearing to establish the slide bar of sliding fit with the guide hole, slide bar and piston rod fixed connection.

By adopting the technical scheme, the matching between the sliding rod and the guide hole plays a role in guiding the moving piston rod.

Further setting the following steps: the flanges are arranged in a plurality along the axial direction of the piston rod.

Through adopting above-mentioned technical scheme, the setting up of a plurality of flanges increases and leads the spacing area between the slide rail, further promotes this guide structure's stability.

Further setting the following steps: and the guide sleeve is fixedly arranged on the wall of the guide hole and is in sliding fit with the sliding rod.

Through adopting above-mentioned technical scheme, the area of contact between further increase and the slide bar of setting up of guide pin bushing to realize better direction and limiting displacement.

Further setting the following steps: the guide sleeve comprises a linear bearing.

Through adopting above-mentioned technical scheme, linear bearing realizes with the roll cooperation between the direction slide rail to reduce this guide structure's frictional resistance.

Further setting the following steps: the connecting piece is fixedly connected with the sliding rod and is in threaded connection with the piston rod.

through adopting above-mentioned technical scheme, threaded connection's mode can realize leading the quick assembly between slide rail, connecting piece and the piston rod three.

Further setting the following steps: the supercharging cylinder comprises a supercharging cylinder body, a supercharging rod arranged in the supercharging cylinder body and a supercharging piston fixedly arranged on the supercharging rod, and a third flange and a fourth flange are arranged at two ends of the supercharging cylinder body respectively.

By adopting the technical scheme, the method has the advantages that,

further setting the following steps: the intermediate body comprises a cylinder body, a middle rod arranged in the cylinder body and a hydraulic piston fixedly arranged on the middle rod, the middle rod penetrates through a second flange to be fixedly connected with a piston rod, and the cylinder body is connected with a third flange and the second flange.

By adopting the technical scheme, the method has the advantages that,

Further setting the following steps: including setting firmly in the flange of pre-compaction cylinder, the direction slide rail is including setting up in the slide rail of flange and with the slide rail complex sliding block that slides, sliding block and piston rod fixed connection.

Through adopting above-mentioned technical scheme, the cooperation between sliding block and the slide rail both plays the guide effect to the piston rod in the motion.

In conclusion, the invention has the following beneficial effects: the invention can guide the moving piston rod, thereby prolonging the service life of the pressure cylinder, reducing the parts of the equipment, reducing the volume of the equipment, reducing the design and the production period of the automatic equipment, achieving the integration of the equipment, and being more convenient and faster to modularize, install and maintain the equipment.

Drawings

FIG. 1 is a sectional view of the first embodiment;

FIG. 2 is a sectional view showing another state of the embodiment;

Fig. 3 is a schematic structural diagram of the second embodiment.

In the figure: 01. pre-pressing a cylinder body; 02. a piston rod; 03. prepressing the piston; 04. a first flange; 05. a second flange; 21. a pressurizing cylinder body; 22. a pressure increasing lever; 23. a booster piston; 24. a third flange; 25. a fourth flange; 31. a barrel; 32. a middle rod; 33. a hydraulic piston; 4. an exhaust hole; 5. an air inlet; 6. an oil storage barrel; 8. a connecting member; 9. a flange; 14. a guide hole; 11. a guide sleeve; 15. a slide bar; 16. a slide rail; 17. and (4) a sliding block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.