Variable-degree-of-freedom connecting rod mechanism containing rotating pair locking devices for novel gas cutting unloading machine

Abstract

The invention discloses a variable-degree-of-freedom connecting rod mechanism containing rotating pair locking devices for a novel gas cutting unloading machine. The mechanism comprises a base 1, a large arm extension mechanism, a lower arm lifting mechanism, a clamper connecting rod keeping mechanism, a clamper 27, a cutting gun 28, a servo driving device, a first locking device 25 and a second locking device 26; the large arm extension mechanism consists of a fourth connecting rod 5, a first driving rod 3, a second driving rod 20 and a first connecting rod 22; the keeping mechanism consists of a second connecting rod 17, a keeping connecting rod 18 and a large arm 8; the first locking device 25 is mounted on a second rotating pair 4; the second locking device 26 is mounted on a tenth rotating pair 16; and the servo driving device includes a first servo motor and a second servo motor, which are connected with the first driving rod 3 and the second driving rod 20 to drive the first driving rod 3 and the second driving rod 20 to rotate. The variable-degree-of-freedom connecting rod transmission mechanism is adopted to replace traditional hydraulic transmission to solve the defects of complexity and easiness in oil leakage in a hydraulic system of a hydraulic gas cutting unloading machine.

Description

technical field [0001] The invention relates to the field of machinery, in particular to a variable-degree-of-freedom link mechanism for a novel gas cutting blanking machine which includes a rotating pair locking device. Background technique [0002] In the past few years, due to the shortage of personnel in the labor market, labor costs have increased year by year, which has promoted the wide application of gas cutting blanking machines in gas cutting blanking operations. There are two types of gas cutting machines: mechanical and hydraulic. At present, most of the gas cutting machines are driven by hydraulic pressure. Since the hydraulic transmission uses hydraulic oil as the power transmission medium, there are the following problems: its starting performance is poor, and it is easy to cause internal Leakage occurs after the components are worn, and the leaked hydraulic oil will pollute the environment; the hydraulic oil is greatly affected by temperature, the overall eff...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a new type of gas cutting cutting machine that contains a rotating pair locking device variable degree of freedom linkage, which overcomes the shortcomings of the hydraulic system components of the hydraulic gas cutting cutting machine, such as high precision requirements, complex structure, and easy oil leakage. , to overcome the shortcoming that the drive motors of the open chain structure need to be installed at the joint position, and make the number of controllable drive motors less than the degree of freedom of the connecting rod mechanism of the gas cutting machine, and overcome the need for the existing mechanical electric gas cutting machine. The shortcomings of the control motor with the same number of degrees of freedom in the linkage mechanism, simplify the complexity of the structure, and reduce the weight, motion inertia, volume and cost of the mechanism

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