Variable-rigidity constant-force floating-grinding grinding head

Abstract

The invention discloses a variable-rigidity constant-force floating-grinding grinding head. The variable-rigidity constant-force floating-grinding grinding head comprises an installing bracket, a transmission assembly and a grinding head body; the transmission assembly is installed in the installing bracket, one end of the transmission assembly is connected with the grinding head body, and the other end of the transmission assembly is connected with an external driving device; and a pneumatic variable-rigidity soft driver used for supplying thrusting force to the grinding head body is arrangedon the installing bracket, the pneumatic variable-rigidity soft driver is filled with interfering particles, the pneumatic variable-rigidity soft driver can change the compact degree of the interfering particles by differentially adjusting the internal pressure, and then the variable rigidity and the variable length of the pneumatic variable-rigidity soft driver are achieved. According to the variable-rigidity constant-force floating-grinding grinding head, the thrusting force is supplied to the grinding head body through extension of the pneumatic variable-rigidity soft driver and friction force among the particles, a machined part generates supporting force to the grinding head body when the part is machined by the grinding head body, and constant-force grinding is achieved through force balancing; and in addition, the variable-rigidity constant-force floating-grinding grinding head can adapt to the machined part made of different materials by changing the rigidity to supply optimalconstant-force grinding, and the product quality is guaranteed.

Description

technical field [0001] The invention relates to the field of mechanical processing equipment, in particular to a floating grinding head with variable stiffness and constant force. Background technique [0002] At present, there is no constant-force floating grinding tool based on the automation of software-variable-stiffness robotic hands in my country. Traditional manual grinding relies on the hand-holding of workers to apply pressure. Due to mechanical vibration and human physical limitations, constant grinding and polishing pressure cannot be guaranteed. Some grinding tools based on automation design cannot achieve real-time flexible constant force grinding due to problems such as precision, pressure, and flexibility. [0003] Therefore, in order to solve the above problems, a floating grinding head with variable stiffness and constant force is needed, which provides thrust for the grinding head through the extension of the pneumatic variable stiffness software driver, an...

AI Technical Summary

Problems solved by technology

[0002] At present, there is no constant-force floating grinding tool based on the automation of software-variable-stiffness robotic hands in my country. Traditional manual grinding relies on the hand-holding of workers to apply pressure. Due to mechanical vibration and human physical limitations, the constant grinding and polishing pressure cannot be guaranteed.

Some grinding tools based on automation design cannot achieve real-time flexible constant force grinding due to problems such as precision, pressure, and flexibility

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