阅读说明：本技术 一种伺服电动气液增压缸装置 (Servo electric gas-liquid pressure cylinder device ) 是由 吴兴尧 罗杰 黄金晶 郑程 赵建良 章彩琴 于 2021-01-21 设计创作，主要内容包括：本发明涉及一种伺服电动气液增压缸装置,尤其涉及在相对较小的空间内实现位移可控的高输出力的电动气液增压缸装置。本增压缸装置,在传统气液增压缸的缸体内,追加伺服电机及丝杆组件顶杆机构,将丝杆组件推力、及原有气压力,以增压缸形式增大后,形成推力,输出到顶杆端部,实现高输出力。同时,伺服电机及丝杆组件的应用,可实现顶杆末端位移一定范围内可控。本发明解决了传统高输出力气液增压缸体积大、位移不可控,以及传统高输出力电动伺服压机成本高的问题。(The invention relates to a servo electric gas-liquid pressure cylinder device, in particular to an electric gas-liquid pressure cylinder device which realizes displacement controllable high output force in a relatively small space. The booster cylinder device is characterized in that a servo motor and a screw rod assembly ejector rod mechanism are additionally arranged in a cylinder body of a traditional gas-liquid booster cylinder, and the thrust of a screw rod assembly and the original gas pressure are increased in a booster cylinder mode to form thrust which is output to the end part of an ejector rod, so that high output force is realized. Meanwhile, the servo motor and the screw rod assembly are applied, so that the displacement of the tail end of the ejector rod can be controlled within a certain range. The invention solves the problems of large volume, uncontrollable displacement and high cost of the traditional high-output-force gas-liquid pressure cylinder and the traditional high-output-force electric servo press.)

1. The utility model provides a servo electronic gas-liquid pressure cylinder device which characterized in that: including handling frame (1), handling frame (1) in be equipped with ability down-drive lead screw (2), lead screw (2) drive pressure boost piston ejector pin (3) displacement downwards, the lower extreme of handling frame (1) in be equipped with outer roof rod (4) and pressure boost piston ejector pin (3) and promote outer roof rod (4) displacement downwards, the outer wall of handling frame (1) be equipped with and be used for carrying out gas-liquid pressure boost cylinder (5) that the pressure boost is carried out pressure boost piston ejector pin (3).

2. The servo electric gas-liquid pressure cylinder device according to claim 1, characterized in that: lead screw (2) overcoat lead screw nut (6), the upper end of pressure boost piston ejector pin (3) cup joint with the outer wall of lead screw nut (6), handling frame (1) in be equipped with and prevent that rotary column (7) and pressure boost piston ejector pin (3) slide along preventing rotary column (7).

3. The servo electric gas-liquid pressure cylinder device according to claim 2, characterized in that: the inner wall of the upper end of the pressurizing piston ejector rod (3) and the anti-rotation column (7) and the inner wall of the operating frame (1) and the pressurizing piston ejector rod (3) are respectively sealed through O-shaped rings (8).

4. A servo electric gas-liquid pressure cylinder apparatus according to claim 1 or 2, characterized in that: the upper part of the operating frame (1) is provided with a servo motor (9), and the servo motor (9) is connected with the screw rod (2) through a coupler (10).

5. A servo electric gas-liquid pressure cylinder apparatus according to claim 1 or 2, characterized in that: the screw rod (2), the pressurizing piston mandril (3) and the outer mandril (4) are distributed on the same central line.

Technical Field

The invention relates to a pressure cylinder device, in particular to a servo electric gas-liquid pressure cylinder device.

Background

At present, in the traditional gas-liquid pressure cylinder, the pressure cylinder body cannot realize the control of the displacement and the speed of the ejector rod, and meanwhile, when the requirement on the output force of the ejector rod is large, the volume of the gas-liquid pressure cylinder is large; the traditional high-output power servo electric cylinder has high cost.

Disclosure of Invention

The invention mainly solves the defects in the prior art, and aims to provide a servo electric gas-liquid pressure cylinder device which solves the problems of uncontrollable displacement and speed and large volume of a mandril of the traditional gas-liquid pressure cylinder and the problem of high cost of the traditional high-output-force servo electric cylinder, realizes high output force of the mandril by simultaneously electrically servo and pneumatically pressurizing, can control the output displacement and speed of the mandril, and has low cost and small occupied space.

The technical problem of the invention is mainly solved by the following technical scheme:

the utility model provides a servo electronic gas-liquid pressure cylinder device, includes the handling frame, the handling frame in be equipped with ability down-drive's lead screw, the lead screw drive pressure boost piston ejector pin downward displacement, the lower extreme of handling frame in be equipped with outer neck rod and pressure boost piston ejector pin and promote outer neck rod downward displacement, the outer wall of handling frame be equipped with and be used for carrying out the gas-liquid pressure cylinder that pressurizes to pressure boost piston ejector pin.

Preferably, the screw rod is sleeved with a screw rod nut, the upper end of the pressurizing piston ejector rod is sleeved with the outer wall of the screw rod nut, and the operation frame is internally provided with an anti-rotation column and the pressurizing piston ejector rod slides along the anti-rotation column.

Preferably, the inner wall of the upper end of the pressurizing piston mandril and the anti-rotating column and the inner wall of the operating frame and the pressurizing piston mandril are respectively sealed through O-shaped rings.

Preferably, the upper part of the operating frame is provided with a servo motor, and the servo motor is connected with the screw rod through a coupler.

Preferably, the screw rod, the pressurizing piston mandril and the outer mandril are distributed on the same central line.

A servo motor and a screw rod assembly ejector rod mechanism are additionally arranged in a cylinder body of a traditional gas-liquid pressure cylinder, and the thrust of a screw rod assembly and the original gas pressure are increased in a pressure cylinder mode to form thrust which is output to the end part of an ejector rod, so that high output force is realized. Meanwhile, the servo motor and the screw rod assembly are applied, so that the displacement of the tail end of the ejector rod can be controlled within a certain range.

The working principle is as follows: the servo motor drives the screw rod to rotate through the coupler, drives the screw rod nut and the pressurizing piston ejector rod to move downwards in a linear motion mode, and therefore the oil pressure intensity in the cylinder body at the lower portion of the gas-liquid pressurizing cylinder is increased, and further the large output force of the outer ejector rod is achieved. The servo motor, the screw rod and the screw rod nut are used to ensure that the downward moving speed and the position of the pressurizing piston mandril are accurately controllable, thereby ensuring that the downward moving speed and the position of the outer mandril are controllable within a certain range. The pressurizing piston ejector rod is pushed by the screw rod and is simultaneously subjected to the gas pressure of the cylinder body at the upper part of the gas-liquid pressurizing cylinder, so that the screw rod thrust and the gas pressure are simultaneously output to the outer ejector rod after being pressurized by the gas-liquid pressurizing cylinder, and the simultaneous pressurization of electric servo and gas pressure is realized. The electric dynamic pressure servo and the air pressure are increased simultaneously, and a gas-liquid pressure cylinder with a small volume can be utilized to realize large output force and use in a small equipment space. The anti-rotation column prevents the pressurizing piston ejector rod and the screw rod nut from rotating in the circumferential direction, so that the linear motion of the screw rod and the screw rod nut is realized.

Therefore, the servo electric gas-liquid pressure cylinder device provided by the invention can control the output displacement and speed of the ejector rod while realizing high output force of the ejector rod of the servo electric gas-liquid pressure cylinder, and has the advantages of low cost and small occupied space.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic cross-sectional structure of the present invention.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.

Example 1: as shown in the figure, the servo electric gas-liquid pressure cylinder device comprises an operation frame 1, wherein a lead screw 2 capable of being driven downwards is arranged in the operation frame 1, the lead screw 2 drives a pressure piston ejector rod 3 to move downwards, an outer top rod 4 and a pressure piston ejector rod 3 are arranged in the lower end of the operation frame 1 to push the outer top rod 4 to move downwards, and a gas-liquid pressure cylinder 5 used for pressurizing the pressure piston ejector rod 3 is arranged on the outer wall of the operation frame 1.

2 overcoat of lead screw have lead screw nut 6, the outer wall of upper end and lead screw nut 6 of pressure boost piston ejector pin 3 cup joint, handling frame 1 in be equipped with and prevent that rotary column 7 and pressure boost piston ejector pin 3 slide along preventing rotary column 7.

And the inner wall of the upper end of the pressurizing piston ejector rod 3 and the anti-rotating column 7 as well as the inner wall of the operating frame 1 and the pressurizing piston ejector rod 3 are respectively sealed through O-shaped rings 8.

The upper part of the operating frame 1 is provided with a servo motor 9, and the servo motor 9 is connected with the screw rod 2 through a coupler 10.

The screw rod 2, the pressurizing piston mandril 3 and the outer mandril 4 are distributed on the same central line.