Accurate pressing composite type motion actuator with built-in pressure sensor

Abstract

The invention provides an accurate pressing composite type motion actuator with a built-in pressure sensor. The accurate pressing composite type motion actuator comprises a bearing shaft and a rotarymotion actuator; one end of the bearing shaft is used for being connected with a load, and the other end is connected with a connecting block; the connecting block is fixedly connected to a linear motion actuator, the linear motion actuator drives the connecting block to perform linear motion, and therefore, the bearing shaft is driven to perform axial reciprocating motion; a pressed sheet is arranged between the rotary motion actuator and the connecting block and arranged on the bearing shaft in a sleeving manner, and besides, the pressure sensor is connected with the side, close to the pressed sheet, of the connecting block; clearance is reserved between the pressed sheet and the pressure sensor, and slide clearance is reserved between the connecting block and the bearing shaft; when themotion, driven by the connecting block, of the bearing shaft to the load is blocked, the connecting block drives the pressure sensor to slide downwards relative to the bearing shaft, and the pressuresensor is contacted with the pressed sheet; and by means of limited space, the whole module has small size, cannot be disturbed by other structures, detects a value of applied pressure online and controls the value of pressure required to be applied.

Description

technical field [0001] The invention relates to the technical field of integrated motion actuators, in particular to a precision pressure compound motion actuator with embedded pressure sensors. Background technique [0002] In the field of automation and intelligent equipment, equipment whose main shaft can rotate around the axis and move linearly along the axis is often used. In the current industry, the compound actuator with a single linear motion, that is, the compound actuator in the three directions of xyz, has been very mature and meets the needs of industrialization. However, for the main shaft, there is no standardized and industrialized solution for the integrated actuator that can move both linearly and rotationally. [0003] Based on this, some composite actuators have been gradually developed on the market. By combining rotary motion actuators and linear motion actuators, the main shaft has two functions of rotation and linear motion, and is widely used in rob...

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Problems solved by technology

[0003] Based on this, some composite actuators have been gradually developed on the market. By combining rotary motion actuators and linear motion actuators, the main shaft has two functions of rotation and linear motion, and is widely used in robotic arms. , in order to meet some pressure mode motion modules on the market, such as pressure spot welding and crimping assembly, etc.; these pressure mode motion modules only have requirements for pressure, and do not limit their movement distance; so many products are equipped with pressure sensors , but this method also brings problems: because of its low integration, scattered parts, large volume and uncontrollable; such a module not only has insufficient pressure sensing accuracy, but also has requirements for the installation position, which makes the application limitations larger

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