CN-121973064-A - Abrasive belt tensioning mechanism and abrasive belt polishing device

CN121973064ACN 121973064 ACN121973064 ACN 121973064ACN-121973064-A

Abstract

The invention discloses an abrasive belt tensioning mechanism and an abrasive belt polishing device, which relate to the technical field of polishing equipment and comprise an active tensioning mechanism which is arranged on a supporting unit of the abrasive belt polishing device, wherein the active tensioning mechanism is provided with a mounting part which is arranged on the supporting unit and is positioned on one side of an abrasive belt, a switching part which is movably arranged on the mounting part along the direction vertical to the surface of the abrasive belt, one side of the switching part, which is close to the abrasive belt, is rotatably provided with an active tensioning wheel, one side of the switching part, which is away from the abrasive belt, is provided with a pressure sensor, a driving mechanism which is arranged on the supporting unit, the output end of the driving mechanism is connected with the pressure sensor, and a controller which is electrically connected with the pressure sensor and the driving mechanism, so that the dynamic control of high efficiency, high precision and high stability of abrasive belt tensioning force is realized.

Inventors

SHI YU
FAN WENGANG
ZHANG BO
WANG HAO
CAI LIN
SHAN YUHANG
LIU XIN
LIU JUNNING

Assignees

北京交大麒麟慧通科技有限公司

Dates

Publication Date: 20260505
Application Date: 20251208

Claims (10)

1. An abrasive belt tensioning mechanism comprising an active tensioning mechanism for mounting on a support unit of an abrasive belt grinding device, said active tensioning mechanism being provided with: a mounting part mounted on the supporting unit and located at one side of the abrasive belt; The switching part is movably arranged on the mounting part along the direction perpendicular to the surface of the abrasive belt, one side of the switching part, which is close to the abrasive belt, is rotatably provided with an active tensioning wheel, and one side of the switching part, which is away from the abrasive belt, is provided with a pressure sensor; The driving mechanism is arranged on the supporting unit, and the output end of the driving mechanism is connected with the pressure sensor; and the controller is electrically connected with the pressure sensor and the driving mechanism.
2. Abrasive belt tensioning mechanism according to claim 1, wherein the mounting part is provided with a plurality of sets of guiding mechanisms comprising: A guide bush mounted on the mounting portion; The guide shaft is inserted in the guide shaft sleeve in a sliding manner and is connected with the switching part.
3. Abrasive belt tensioning mechanism according to claim 1 or 2, characterized in that the drive mechanism employs a servo-operated cylinder, the telescopic rod of which is connected to the pressure sensor.
4. A belt tensioner according to claim 3, wherein the mounting portion is located on a side of the adapter facing away from the belt, and the output end of the drive mechanism is slidably mounted through the mounting portion and is connected to the pressure sensor.
5. Abrasive belt tensioning mechanism according to claim 1, further comprising a passive tensioning mechanism for mounting on the support unit, the passive tensioning mechanism being provided with: a passive tensioning wheel, the tensioning wheel shaft of which is movably arranged on the supporting unit along the direction perpendicular to the surface of the abrasive belt; and one end of the elastic component is connected to the supporting unit, and the other end of the elastic component is directly or indirectly connected with the tensioning wheel shaft of the passive tensioning wheel.
6. Abrasive belt tensioning mechanism according to claim 5, characterized in that the passive tensioning wheel is provided with a lifting mechanism which is connected to the tensioning wheel axle of the passive tensioning wheel.
7. Abrasive belt tensioning mechanism according to claim 6, characterized in that the lifting mechanism is provided with: one end of the first connecting rod is fixed on a tensioning wheel shaft of the passive tensioning wheel, and the other end of the first connecting rod extends along a direction perpendicular to the tensioning wheel shaft of the passive tensioning wheel; And one end of the second connecting rod is hinged with the end part of the tensioning wheel shaft, which is not connected with the passive tensioning wheel, of the first connecting rod, and the other end of the second connecting rod extends along the direction perpendicular to the tensioning wheel shaft of the passive tensioning wheel and is movably arranged on the supporting unit.
8. Abrasive belt tensioning mechanism according to claim 7, characterized in that the elastic assembly is connected at one end to the support unit and at the other end to the end position of the second link articulated to the first link.
9. Abrasive belt tensioning mechanism according to claim 5, characterized in that the elastic assembly is provided with a limit part, and an adjusting part is movably arranged on the limit part along the movement direction of the tensioning wheel shaft of the passive tensioning wheel, and the adjusting part is connected to the end part of the elastic assembly, which is away from the tensioning wheel shaft of the passive tensioning wheel.
10. An abrasive belt sanding device, comprising: A supporting unit as a carrying structure; a driving wheel assembly mounted on the supporting unit; The grinding wheel pressing assemblies are arranged on the supporting unit and are distributed at intervals with the driving wheel assemblies; at least one auxiliary transmission wheel assembly, which is mounted on the support unit and is located between the driving wheel assembly and the grinding wheel assembly; A belt encircling the drive wheel of the drive wheel assembly, the grinding wheel of the grinding wheel assembly and the auxiliary drive wheel of the auxiliary drive wheel assembly; Abrasive belt tensioning mechanism as claimed in any one of claims 1 to 9, disposed between the drive wheel assembly and the grinding wheel assembly and spaced evenly from the auxiliary drive wheel assembly.

Description

Abrasive belt tensioning mechanism and abrasive belt polishing device Technical Field The invention relates to the technical field of polishing equipment, in particular to an abrasive belt tensioning mechanism and an abrasive belt polishing device. Background The abrasive belt polishing is used as a high-efficiency and flexible surface treatment process and is widely applied to various industrial fields such as metal processing, woodworking, composite material treatment, deburring, polishing and the like. The core working parts of the belt sander are annular belt which is supported and driven by a drive wheel, a tension wheel and an idler wheel. The belt needs to maintain a constant and proper tension during operation, which is a key factor in ensuring sanding quality, equipment operational stability and belt life. Currently, the abrasive belt tensioning mode commonly adopted in the industry mainly comprises manual adjustment tensioning and passive tensioning. The manual tensioning has the problems of low efficiency, dependence on manpower, poor consistency of tensioning force, incapability of real-time compensation, potential safety hazard and the like, and the passive tensioning has the problems of limited compensation capacity, hysteresis, poor dynamic response, complex initial setting, easiness in drifting and lack of accurate control and feedback. The defects of the conventional abrasive belt tensioning technology directly lead to difficult guarantee of polishing quality and easy fluctuation, abnormal abrasion of the abrasive belt, increased replacement frequency, rising of consumable cost, unstable equipment operation, large vibration noise, large load change of key parts and influence on equipment reliability and service life. Disclosure of Invention The invention aims to provide an abrasive belt tensioning mechanism and an abrasive belt polishing device, which are used for solving the problems of the prior art and realizing the dynamic control of the abrasive belt tensioning force with high efficiency, high precision and high stability. In order to achieve the above object, the invention provides a belt tensioning mechanism comprising an active tensioning mechanism for mounting on a support unit of a belt sander, said active tensioning mechanism being provided with: a mounting part mounted on the supporting unit and located at one side of the abrasive belt; The switching part is movably arranged on the mounting part along the direction perpendicular to the surface of the abrasive belt, one side of the switching part, which is close to the abrasive belt, is rotatably provided with an active tensioning wheel, and one side of the switching part, which is away from the abrasive belt, is provided with a pressure sensor; The driving mechanism is arranged on the supporting unit, and the output end of the driving mechanism is connected with the pressure sensor; and the controller is electrically connected with the pressure sensor and the driving mechanism. Optionally, the installation department is last to be equipped with multiunit guiding mechanism, guiding mechanism includes: A guide bush mounted on the mounting portion; The guide shaft is inserted in the guide shaft sleeve in a sliding manner and is connected with the switching part. Optionally, the driving mechanism adopts a servo electric cylinder, and a telescopic rod of the servo electric cylinder is connected with the pressure sensor. Optionally, the installation part is located the switching portion deviates from the one side of abrasive band, actuating mechanism's output slip passes the installation part, and be connected with pressure sensor. Optionally, the device further comprises a passive tensioning mechanism for being mounted on the supporting unit, wherein the passive tensioning mechanism is provided with: a passive tensioning wheel, the tensioning wheel shaft of which is movably arranged on the supporting unit along the direction perpendicular to the surface of the abrasive belt; and one end of the elastic component is connected to the supporting unit, and the other end of the elastic component is directly or indirectly connected with the tensioning wheel shaft of the passive tensioning wheel. Optionally, the passive tensioning wheel is matched with a lifting mechanism, and the lifting mechanism is connected with a tensioning wheel shaft of the passive tensioning wheel. Optionally, the lifting mechanism is provided with: one end of the first connecting rod is fixed on a tensioning wheel shaft of the passive tensioning wheel, and the other end of the first connecting rod extends along a direction perpendicular to the tensioning wheel shaft of the passive tensioning wheel; And one end of the second connecting rod is hinged with the end part of the tensioning wheel shaft, which is not connected with the passive tensioning wheel, of the first connecting rod, and the other end of the second connecting rod extends along the direction perpendicu