Four-belt sander of automatic deviation rectifying mechanism for robot

Abstract

The utility model discloses a four-belt sander of an automatic deviation rectifying mechanism for a robot. The four-belt sander comprises a rack, a polishing mechanism and a power mechanism, wherein the polishing mechanism and the power mechanism are arranged on the rack; the polishing mechanism comprises a driving wheel, a driven wheel, an abrasive belt, a deviation rectifying wheel and a sound wave edge detector. An abrasive belt is tensioned on the driving wheel, the driven wheel and the deviation rectifying wheel; the deviation rectifying wheel is used for carrying out autorotation rolling and carrying out second-dimension autorotation perpendicular to the autorotation rolling axial direction of the deviation rectifying wheel; the detection area of the sound wave edge detector is aligned with the abrasive belt, and when it is detected that the abrasive belt deviates, the second-dimension rotation of the deviation rectifying wheel is used for driving the abrasive belt to conduct deviation rectifying operation; the power mechanism is used for driving the four grinding mechanisms to conduct grinding work. After the scheme is adopted, the four abrasive belts can be used for installing the abrasive belts with different sand grains, and the deviation correcting wheels can be used for realizing automatic deviation correction of the abrasive belts, so that the problem that the existing abrasive belts are easy to deviate and fall off is practically solved.

Description

Technical Field

[0001] The utility model relates to the technical field of abrasive belt machines, in particular to a four-belt abrasive belt machine with an automatic deviation-correcting mechanism for a robot. Background Art

[0002] Belt sanders and polishers are used for metal castings, machined metal parts, or plastic products. The mold lines of metal components, uneven surfaces, tool marks on machined metal parts, and the outer surfaces of plastic products all require grinding and polishing to improve their appearance.

[0003] However, the existing sanding belt machines have a single sanding belt, which needs to be disassembled and replaced for different sand grains. Grinding with multiple processes requires several sanding belt machines to achieve. In addition, the sanding belts are prone to deviation and falling. Therefore, how to solve this dilemma has become an urgent problem to be solved by technical personnel in this field. Utility Model Content

[0004] The utility model aims to provide a four-belt sanding machine with an automatic deviation-correcting mechanism for a robot, so as to solve the problem that the existing sanding belts are prone to deviation and falling.

[0005] In order to solve the above technical problems, the utility model provides a four-belt sanding machine with an automatic correction mechanism for a robot, comprising a frame, a grinding mechanism and a power mechanism arranged on the frame; the grinding mechanism comprises a driving wheel, a driven wheel, a sanding belt, a correction wheel and an acoustic edge detector; the driving wheel, the driven wheel and the correction wheel are tensioned with the sanding belt; the correction wheel is used to rotate and roll, and to rotate in a second dimension perpendicular to its rotation and rolling axis; the detection area of the acoustic edge detector is aligned with the sanding belt, and when the sanding belt is measured to be offset, the second-dimensional rotation of the correction wheel is used to drive the sanding belt to perform a correction operation; the power mechanism is used to drive the four grinding mechanisms to perform grinding work.

[0006] In one embodiment, there are four grinding mechanisms, two of which are connected to form a structure for performing grinding work synchronously, and the other two grinding mechanisms are respectively arranged above the aforementioned two grinding mechanisms, and the two upper grinding mechanisms are also connected to form a structure for performing grinding work synchronously.

[0007] In one embodiment, in the two grinding mechanisms connected to form a synchronous grinding working structure, a driving wheel connecting shaft is connected between the driving wheels of each two grinding mechanisms, and a driven wheel connecting shaft is connected between the driven wheels of each two grinding mechanisms; the power mechanism is used to drive the two driving wheel connecting shafts to rotate.

[0008] In one embodiment, the power mechanism includes a power motor, a power wheel and a power transmission belt; the power motor is used to drive the power wheel to rotate; the power wheel and the two driving wheel connecting shafts are tensioned with the power transmission belt.

[0009] In one embodiment, a mounting plate is provided on the frame, two of the grinding mechanisms are provided on both sides of the lower part of the mounting plate, and another two of the grinding mechanisms are provided on both sides of the upper part of the mounting plate, and four correction mechanisms are provided on the mounting plate, and the four correction mechanisms are respectively used to control the four correction wheels to rotate in a second dimension perpendicular to their rotational rolling axis.

[0010] In one embodiment, the correction mechanism includes a guide module arranged on the mounting plate, a correction bracket connected to the guide module, and a correction motor, a reducer and a wheel mounting bracket arranged on the correction bracket; the guide module is used to control the movement of the correction wheel to adjust the tension on the sanding belt; the output shaft of the correction motor is connected to the input end of the reducer; the output end of the reducer is connected to the wheel mounting bracket, and the reducer is used to drive the wheel mounting bracket to rotate; the correction wheel is installed on the wheel mounting bracket, and the rotation axis of the wheel mounting bracket is perpendicular to the rotation and rolling axis of the correction wheel.

[0011] In one embodiment, the guide module is a cylinder.

[0012] In one embodiment, the correction motor is a servo motor; the reducer is a harmonic reducer.

[0013] In one embodiment, the four-belt sanding machine further includes a sanding belt dust removal and waxing mechanism, and the four sanding belt dust removal and waxing mechanisms are respectively aligned with the four sanding belts.

[0014] In one embodiment,

[0015] The beneficial effects of the utility model are as follows:

[0016] 1. The traditional belt sander has a single belt, which is difficult to connect or communicate with automated equipment. The utility model has a total of four belts, which can be installed with belts of different coarse and fine grit (or polishing wheels or cloth wheels and rattan wheels can be installed separately for polishing or wire drawing), and its performance is far superior to the existing technology.

[0017] 2. The sanding belt dust removal and waxing mechanism of this utility model can remove the residues that fall off and stick to the sanding belt during operation in real time, and can replenish industrial wax in real time during polishing to make the workpiece surface smooth and bright. This function is not available in traditional sanding belt machines.

[0018] 3. The traditional belt sander's correction mechanism manually adjusts the parallelism between the power wheel, guide wheel, and correction wheel. However, when the belt is subjected to the lateral force of the belt during operation, the belt is easily offset and falls off, affecting the quality and effect of sanding. When the sanding belt is measured to be offset, the second-dimensional rotation of the correction wheel is used to drive the sanding belt to perform correction operations. The sanding belt can be accurately positioned and stabilized to rotate within the fixed position error of 0.3mm among the power wheel, driven wheel, and correction wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the implementation. Obviously, the drawings described below are only some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a structural diagram provided by an embodiment of the present utility model;

[0021] Figure 2 yes Figure 1 Schematic diagram of the internal structure;

[0022] Figure 3 yes Figure 2 Schematic diagram of the power mechanism structure;

[0023] Figure 4 yes Figure 2 Schematic diagram of the correction mechanism structure.

[0024] The reference numerals are as follows:

[0025] 10. Frame; 11. Mounting plate;

[0026] 20. Grinding mechanism; 21. Driving wheel; 22. Driven wheel; 23. Abrasive belt; 24. Correction wheel; 25. Sonic edge detector; 26. Driving wheel connecting shaft; 27. Driven wheel connecting shaft;

[0027] 30. Power mechanism; 31. Power motor; 32. Power wheel; 33. Power transmission belt;

[0028] 40. Correction mechanism; 41. Guide module; 42. Correction bracket; 43. Correction motor; 44. Reducer; 45. Wheel mounting bracket;

[0029] 50. Sanding belt dust removal and waxing mechanism. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0031] The utility model provides a four-belt sander with an automatic deviation correction mechanism 40 for a robot, which is implemented as follows: Figures 1 to 4 As shown, it includes a frame 10, a grinding mechanism 20 arranged on the frame 10 and a power mechanism 30; the grinding mechanism 20 includes a driving wheel 21, a driven wheel 22, a grinding belt 23, a correction wheel 24 and an acoustic edge detector 25; the driving wheel 21, the driven wheel 22 and the correction wheel 24 are tensioned with the grinding belt 23; the correction wheel 24 is used to rotate and roll, and to rotate in a second dimension perpendicular to its rotation and rolling axis; the detection area of the acoustic edge detector 25 is aligned with the grinding belt 23, and when the deviation of the grinding belt 23 is detected, the second dimension rotation of the correction wheel 24 is used to drive the grinding belt 23 to perform a correction operation; the power mechanism 30 is used to drive the four grinding mechanisms 20 to perform grinding work.

[0032] During application, the power mechanism 30 will drive the driving wheels 21 of the four grinding mechanisms 20 to rotate. Since the sanding belt 23 is tensioned by the driving wheel 21, the driven wheel 22 and the correction wheel 24, the sanding belt 23 will rotate in a cycle at this time. By bringing the workpiece to be ground into contact with the circulating sanding belt 23, the grinding of the workpiece can be completed.

[0033] Obviously, the traditional sanding belt 23 machine only has a single sanding belt, while this embodiment has a total of four sanding belts 23. The four sanding belts 23 can be installed with sanding belts 23 of different coarse and fine sand grains (polishing wheels or cloth wheels and rattan wheels can also be installed separately for polishing or wire drawing processes), and its performance is far superior to the existing technology.

[0034] In addition, the traditional belt sander's correction mechanism manually adjusts the parallelism between the power wheel, guide wheel, and correction wheel. However, when the belt is subjected to the lateral force of the belt during operation, the belt is easily offset and falls off, affecting the grinding quality and effect.

[0035] The acoustic edge detector 25 of this embodiment is wrapped around the outside of the edge of the sanding belt 23, so that the edge position of the sanding belt 23 can be detected; if it is measured that the sanding belt 23 is deflected inwardly too much, the correcting wheel 24 can be controlled to rotate in the second dimension, and the sanding belt 23 can be moved outward by turning the correcting wheel 24 outward, thereby achieving the purpose of automatically correcting the sanding belt 23; similarly, if it is measured that the sanding belt 23 is deflected outwardly too much, the correcting wheel 24 can be controlled to rotate in the second dimension, and the sanding belt 23 can be moved inward by turning the correcting wheel 24 inward, which can also achieve the purpose of automatically correcting the sanding belt 23.

[0036] like Figure 1 and Figure 2As shown, this embodiment is provided with four grinding mechanisms 20, wherein two grinding mechanisms 20 are connected as a structure for performing grinding work synchronously, and the other two grinding mechanisms 20 are respectively arranged above the aforementioned two grinding mechanisms 20, and the two upper grinding mechanisms 20 are also connected as a structure for performing grinding work synchronously.

[0037] After adopting this setting method, the coverage of the four sanding belts 23 will be wider, which can meet more different usage requirements; and every two grinding mechanisms 20 are connected to form a structure for performing grinding work synchronously, which also facilitates the synchronous driving of multiple grinding mechanisms 20.

[0038] like Figure 1 and Figure 2 As shown, this embodiment is set in two grinding mechanisms 20 connected to perform synchronous grinding work structure, a driving wheel connecting shaft 26 is connected between the driving wheels 21 of each two grinding mechanisms 20, and a driven wheel connecting shaft 27 is connected between the driven wheels 22 of each two grinding mechanisms 20, so that the power mechanism 30 is used to drive the two driving wheel connecting shafts 26 to rotate.

[0039] After adopting this setting method, as long as the power mechanism 30 drives one driving wheel connecting shaft 26 to rotate, it can drive the two driving wheels 21 to rotate. The rotation of the two driving wheels 21 can naturally drive the two driven wheels 22 to rotate through the sanding belt 23. At this time, the driven wheel connecting shaft 27 will ensure the synchronization of the rotation of the two driven wheels 22; therefore, after the power mechanism 30 drives the two driving wheel connecting shafts 26 to rotate at the same time, the synchronous rotation of the four driving wheels 21, the four driven wheels 22, and the four correcting wheels 24 can be achieved.

[0040] like Figure 2 and Figure 3 As shown, this embodiment provides a power mechanism 30 including a power motor 31, a power wheel 32 and a power transmission belt 33; the power motor 31 is used to drive the power wheel 32 to rotate; the power wheel 32 and the two driving wheel connecting shafts 26 are tensioned with a power transmission belt 33.

[0041] After adopting this setting method, as long as the power motor 31 drives the power wheel 32 to rotate, the power wheel 32 can drive the two driving wheel connecting shafts 26 to rotate through the power transmission belt 33, thereby achieving the effect of the power mechanism 30 providing power for the grinding mechanism 20.

[0042] like Figure 1 and Figure 2As shown, in this embodiment, a mounting plate 11 is provided on the frame 10, two grinding mechanisms 20 are provided on both sides of the lower part of the mounting plate 11, and another two grinding mechanisms 20 are provided on both sides of the upper part of the mounting plate 11, and four correcting mechanisms 40 are provided on the mounting plate 11. The four correcting mechanisms 40 are respectively used to control the four correcting wheels 24 to rotate in the second dimension perpendicular to their rotational rolling axis.

[0043] After adopting this setting mode, the four correcting mechanisms 40 will independently control the four correcting wheels 24 to work, so that each correcting wheel 24 can perform appropriate correcting adjustment according to its own situation.

[0044] like Figure 2 and Figure 4 As shown, this embodiment provides a correction mechanism 40 including a guide module 41 provided on the mounting plate 11, a correction bracket 42 connected to the guide module 41, and a correction motor 43, a reducer 44 and a wheel mounting bracket 45 provided on the correction bracket 42, wherein this embodiment provides the correction motor 43 as a servo motor, the reducer 44 as a harmonic reducer, and the guide module 41 as a cylinder; the guide module 41 is used to control the movement of the correction wheel 24 to adjust the tension on the sanding belt 23; the output shaft of the correction motor 43 is connected to the input end of the reducer 44; the output end of the reducer 44 is connected to the wheel mounting bracket 45, and the reducer 44 is used to drive the wheel mounting bracket 45 to rotate; the wheel mounting bracket 45 is mounted with a correction wheel 24, and the rotation axis of the wheel mounting bracket 45 is perpendicular to the rotation and rolling axis of the correction wheel 24.

[0045] After adopting this setting mode, if the tension of the abrasive belt 23 needs to be adjusted, the guide module 41 can be used to control the movement of the deviation correction wheel 24 to achieve this, for example, Figure 2 and Figure 4 Taking the direction shown as an example, if the tension on the sanding belt 23 needs to be increased, the guide module 41 only needs to be used to control the correcting wheel 24 to move to the right. If the tension on the sanding belt 23 needs to be reduced, the guide module 41 only needs to be used to control the correcting wheel 24 to move to the left.

[0046] When the correction wheel 24 is needed to perform correction operations, the correction motor 43 can be used to input power to the reducer 44. The reducer 44 converts the input power into a low-speed rotation control of the wheel mounting bracket 45. The rotation of the wheel mounting bracket 45 realizes the self-rotation of the correction wheel 24 in the second dimension.

[0047] like Figure 2 As shown, this embodiment of the invention provides a four-belt sanding machine and further includes a sanding belt dust removal and waxing mechanism 50 , and the four sanding belt dust removal and waxing mechanisms 50 are respectively aligned with the four sanding belts 23 .

[0048] After adopting this setting method, the sanding belt dust removal and waxing mechanism 50 can remove the residues that fall off and stick to the sanding belt 23 when the sanding belt 23 is working in real time, and can replenish industrial wax in real time during polishing to make the workpiece surface smooth and bright. This function is not available in traditional sanding belt machines.

[0049] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A four-belt sanding machine with an automatic deviation correction mechanism for a robot, characterized in that: It comprises a frame, a grinding mechanism and a power mechanism arranged on the frame; The grinding mechanism includes a driving wheel, a driven wheel, a sanding belt, a correcting wheel, and a sonic edge detector; the driving wheel, the driven wheel, and the correcting wheel are tensioned with the sanding belt; the correcting wheel is configured to rotate and roll on its own axis, as well as to rotate in a second dimension perpendicular to its rotation and rolling axis; the detection area of the sonic edge detector is aligned with the sanding belt, and when deviation of the sanding belt is detected, the correcting wheel rotates in the second dimension to drive the sanding belt to perform a correcting operation; The power mechanism is used to drive the four grinding mechanisms to perform grinding work.

2. The four-belt sanding machine according to claim 1, characterized in that: There are four grinding mechanisms, two of which are connected to form a structure for performing grinding work synchronously, and the other two grinding mechanisms are respectively arranged above the above two grinding mechanisms, and the two upper grinding mechanisms are also connected to form a structure for performing grinding work synchronously.

3. The four-belt sanding machine according to claim 2, characterized in that: In the two grinding mechanisms connected to perform grinding work synchronously, a driving wheel connecting shaft is connected between the driving wheels of each two grinding mechanisms, and a driven wheel connecting shaft is connected between the driven wheels of each two grinding mechanisms; The power mechanism is used to drive the two driving wheel connecting shafts to rotate.

4. The four-belt sanding machine according to claim 3, characterized in that: The power mechanism includes a power motor, a power wheel and a power transmission belt; The power motor is used to drive the power wheel to rotate; The power transmission belt is tensioned between the power wheel and the two driving wheel connecting shafts.

5. The four-belt sanding machine according to claim 2, characterized in that: A mounting plate is provided on the frame, two of the grinding mechanisms are provided on both sides of the lower part of the mounting plate, another two of the grinding mechanisms are provided on both sides of the upper part of the mounting plate, and four correcting mechanisms are provided on the mounting plate, which are respectively used to control the four correcting wheels to rotate in a second dimension perpendicular to their rotational rolling axis.

6. The four-belt sanding machine according to claim 5, characterized in that: The correction mechanism includes a guide module arranged on the mounting plate, a correction bracket connected to the guide module, and a correction motor, a reducer and a wheel mounting bracket arranged on the correction bracket; The guide module is used to control the movement of the correcting wheel to adjust the tension on the abrasive belt; The output shaft of the correction motor is connected to the input end of the reducer; The output end of the reducer is connected to the wheel mounting bracket, and the reducer is used to drive the wheel mounting bracket to rotate; The deflection-correcting wheel is mounted on the wheel-mounting bracket, and the rotation axis of the wheel-mounting bracket and the rotation and rolling axis of the deflection-correcting wheel are perpendicular to each other.

7. The four-belt sanding machine according to claim 6, characterized in that: The guide module is a cylinder.

8. The four-belt sanding machine according to claim 6, characterized in that: The deviation correction motor is a servo motor; The reducer is a harmonic reducer.

9. The four-belt sanding machine according to claim 1, characterized in that: The four-belt sanding machine further comprises a sanding belt dust removal and waxing mechanism, and the four sanding belt dust removal and waxing mechanisms are respectively aligned with the four sanding belts.

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