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Variable-stiffness flexible grinding and polishing actuator

An actuator and variable stiffness technology, which is used in grinding/polishing equipment, parts of grinding machine tools, automatic grinding control devices, etc. Guarantee the quality of grinding and polishing, reduce the grinding error and the effect of fine grinding

Active Publication Date: 2021-06-22
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the active compliant grinding and polishing machine can maintain a constant grinding and polishing pressure, the surface precision of the finished product is low, and it is easy to accumulate dynamic errors, and the algorithm is complicated; although the passive compliant grinding and polishing machine has a stable structure and high precision, it can only process workpieces with simple surface shapes. For grinding and polishing, it is rare to see wood grinding and polishing machines that combine active and passive softness
[0004] A series-parallel robot technology platform for compliant grinding, in which a compliant grinding adjustment assembly is proposed, which consists of three sets of linear drive systems evenly distributed along the circumference to form a parallel compliant device, and a one-dimensional pressure is arranged in the compliant grinding adjustment assembly and the grinding head assembly The sensor can collect the pressure value in real time, and realize the active compliance control through the closed-loop control algorithm. This series-parallel robot process platform for compliance grinding is flexible in movement and can maintain a constant grinding and polishing force, but it is difficult to solve the kinematics and the algorithm is complicated.
[0005] A wood grinding device in the field of furniture production. The conveyor belt transports the boards. The first electric telescopic rod pushes the abrasive disc placed above the worktable to move downward, and the second electric telescopic rods on both sides push the side grinding rods to the workbench. The center moves towards each other until it is polished with the plate to be processed. Although this device has a simple structure and low manufacturing cost, it cannot meet the processing of more complex profiles.

Method used

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. In the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0031] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indications are only used to explain how to move in a certain posture (as shown in the accompanying drawings). If the specific posture chan...

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Abstract

The invention discloses a variable-stiffness flexible grinding and polishing actuator, and belongs to the technical field of solid wood panel machining. The variable-stiffness flexible grinding and polishing actuator comprises a box body, an active flexible mechanism, a passive flexible mechanism and a grinding and polishing head mechanism arranged outside the box body; the active flexible mechanism and the passive flexible mechanism are arranged in the box body from top to bottom; a pressure sensor is arranged between the active flexible mechanism and the passive flexible mechanism, and the grinding and polishing head mechanism is connected with the passive flexible mechanism. The problem that active and passive flexible separation of a common grinding and polishing machine has many defects can be solved.

Description

technical field [0001] The invention belongs to the technical field of solid wood plate processing, and in particular relates to a flexible grinding and polishing actuator with variable stiffness. Background technique [0002] Solid wood board is a kind of high-quality board with natural texture, strong and durable for making high-end furniture and decorating houses. During its processing, the grinding and polishing machine can liberate workers working in harsh environments, broaden the processing field of wood grinding and polishing, and greatly improve Enterprise productivity. [0003] Grinding and polishing machines on the existing market can be roughly divided into two types, namely active compliant grinding and polishing machines and passive compliant grinding and polishing machines. Although the active compliant grinding and polishing machine can maintain a constant grinding and polishing pressure, the surface precision of the finished product is low, and it is easy t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B41/04B24B41/00B24B49/00B24B51/00
CPCB24B41/04B24B41/042B24B41/007B24B49/00B24B51/00
Inventor 王正雨林睿涵林志鹏何旭东薛家怿王典刘光明
Owner HEFEI UNIV OF TECH
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