CN106737030B - Abrasive belt tensioning mechanism capable of preventing abrasive belt from deviating and implementation method thereof - Google Patents
Abrasive belt tensioning mechanism capable of preventing abrasive belt from deviating and implementation method thereof Download PDFInfo
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- CN106737030B CN106737030B CN201611144947.5A CN201611144947A CN106737030B CN 106737030 B CN106737030 B CN 106737030B CN 201611144947 A CN201611144947 A CN 201611144947A CN 106737030 B CN106737030 B CN 106737030B
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- eccentric shaft
- section
- abrasive belt
- bearing
- guide groove
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/18—Accessories
- B24B21/20—Accessories for controlling or adjusting the tracking or the tension of the grinding belt
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/18—Accessories
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- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention provides an abrasive belt tensioning mechanism capable of preventing an abrasive belt from deviating, which comprises an eccentric shaft, a guide groove block, an adjusting bolt, a hoop, a locking screw, a joint bearing, a tensioning wheel, a handle and a locking nut, wherein the eccentric shaft is arranged on the eccentric shaft; the tension wheel is connected with the bearing and arranged on the eccentric shaft section of the eccentric shaft, and displaces along with the axial change of the eccentric shaft section of the eccentric shaft; the first bearing section of the eccentric shaft is inserted into a guide groove in a guide groove block, so that the eccentric shaft can swing along the direction of the guide groove, and threads on the guide groove block are matched with an adjusting bolt to fix the swing angle of the eccentric shaft; the second bearing section of the eccentric shaft is arranged on the joint bearing, and the tail end of the second bearing section is provided with a handle for controlling the eccentric shaft to rotate around the axis of the joint bearing; the eccentric shaft is controlled to rotate by shaking the handle, and the axial position of the eccentric shaft section is changed, so that the abrasive belt is tensioned. The abrasive belt tensioning mechanism capable of preventing the abrasive belt from deviating provided by the invention is simple and reliable in structure, small in occupied space, capable of solving the problem of abrasive belt deviation and excellent in performance.
Description
Technical Field
The invention relates to the field of grinding instruments, in particular to an abrasive belt tensioning mechanism capable of preventing an abrasive belt from deviating.
Background
Along with the continuous propulsion of industrial automation process, in traditional abrasive band machine field of polishing, use the robot more and more to polish, the robot is polished end effector's design and is limited by robot self bearing capacity usually, can only adopt comparatively simple, light structure.
Robots are generally used in non-contact processing and manufacturing processes, such as transportation, welding, assembly, etc., in industrial production, and end effectors for polishing robots need to be specifically designed according to performance characteristics of the robots. The belt sander is a common device in the polishing operation, has the advantages of good universality, good polishing effect and the like, the belt sander tensioning mechanism has a decisive influence on the complexity of the overall structure of the belt sander, and the common belt sander tensioning mechanism comprises an eccentric shaft tensioning mechanism, a cylinder tensioning mechanism, a cam tensioning mechanism and the like. When the width of the abrasive belt is too large, the axial deviation generated by machining errors can cause the axial movement and the deviation of the abrasive belt, and the using effect of the abrasive belt machine is influenced, so that the common abrasive belt tensioning mechanisms can only be used under the condition that the width of the abrasive belt is small.
Disclosure of Invention
In order to solve the technical problems, the technical scheme of the invention is as follows: the abrasive belt tensioning mechanism capable of preventing the abrasive belt from deviating comprises an eccentric shaft, a guide groove block, an adjusting bolt, a hoop, a locking screw, a joint bearing, a tensioning wheel, a handle and a locking nut;
the eccentric shaft comprises a first bearing section, an eccentric shaft section and a second bearing section, the eccentric shaft section is positioned between the first bearing section and the second bearing section, the first bearing section and the second bearing section are coaxial, and the axis of the eccentric shaft section deviates from the axes of the first bearing section and the second bearing section; the guide groove block comprises a guide groove, and the guide groove comprises a thread matched with the adjusting bolt; the adjusting bolt comprises a thread section and a smooth shaft section; the hoop comprises a clasping ring which can be matched with the first bearing section of the eccentric shaft;
the second bearing section of the eccentric shaft is arranged on the joint bearing, and the tail end of the second bearing section is provided with a handle for controlling the eccentric shaft to rotate around the axis of the joint bearing; the eccentric shaft is controlled to rotate by shaking the handle, the axial line position of the eccentric shaft section is changed, and the wheel spacing between the tension wheel and the driving wheel is changed, so that the abrasive belt is tensioned;
the tensioning wheel is connected with the bearing and arranged on the eccentric shaft section of the eccentric shaft, and displaces along with the axial change of the eccentric shaft section of the eccentric shaft; the first bearing section of the eccentric shaft is inserted into a guide groove in a guide groove block, so that the eccentric shaft can swing along the direction of the guide groove, and the threads in the guide groove are matched with an adjusting bolt to fix the swing angle of the eccentric shaft;
the locking thread of the hoop is matched with the locking screw to clamp the first bearing section of the eccentric shaft, the optical axis section of the adjusting bolt is inserted into the tightly-pushing waist hole of the hoop to fix the position of the hoop, and the hoop is sleeved at the tail end of the first bearing section of the eccentric shaft.
The invention also provides an implementation method of the abrasive belt tensioning mechanism capable of preventing the abrasive belt from deviating, which comprises the following steps:
1) sleeving the abrasive belt on the tension wheel and the driving wheel;
2) the rotating handle drives the eccentric shaft to rotate, so that the abrasive belt is tensioned;
3) starting a driving wheel motor of the belt sander to enable the belt sander to run, observing the axial position and displacement of an abrasive belt along an eccentric shaft, if the abrasive belt deviates, rotating an adjusting bolt to change the screwing amount of the adjusting bolt to drive the eccentric shaft to swing until the abrasive belt runs stably and does not deviate any more, and then screwing a locking nut to fix the position of the adjusting bolt;
4) rotating the handle to loosen the abrasive belt and restore the deflected abrasive belt to the initial position;
5) and tightening the locking screw to enable the anchor ear to tightly hold the eccentric shaft, so that the eccentric shaft does not deflect in the polishing process.
The abrasive belt tensioning mechanism capable of preventing the abrasive belt from deviating provided by the invention is simple and reliable in structure, small in occupied space, capable of solving the problem of abrasive belt deviation and excellent in performance.
Drawings
The invention is further described with reference to the accompanying drawings:
fig. 1 is a schematic structural diagram of a belt tensioning mechanism capable of preventing a belt from running off according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of an eccentric shaft in a belt tensioning mechanism for preventing a belt from running off a track according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a guide groove block in a belt tensioning mechanism capable of preventing a belt from deviating according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an adjusting bolt in a belt tensioning mechanism capable of preventing a belt from running off according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a hoop in a belt tensioning mechanism capable of preventing a belt from running off according to an embodiment of the present invention;
fig. 6 is a three-dimensional structure diagram of a belt tensioning mechanism capable of preventing a belt from running off a track according to an embodiment of the present invention.
Detailed Description
The belt tensioning mechanism and the method for implementing the same according to the present invention will be described in detail with reference to the accompanying drawings and embodiments. It is to be noted that the drawings are in a very simplified form and are all used in a non-precise ratio for the purpose of facilitating and distinctly aiding in the description of the embodiments of the invention.
The abrasive belt tensioning mechanism capable of preventing abrasive belt from deviating is mainly composed of components such as an eccentric shaft 1, a guide groove block 2, an adjusting bolt 3, an anchor ear 4, a locking screw 5, a joint bearing 6, a tensioning wheel 7, a handle 8, a locking nut 9, mounting blocks and the like, and is shown in figures 1 and 6.
The eccentric shaft 1 is shown in fig. 2, and is characterized in that the eccentric shaft 1 is divided into A, B, C three sections, wherein the section A and the section C are coaxial, and the axis of the section B is deviated from the axis of the section A, C by a certain distance.
The guide slot block 2 is shown in fig. 3, and is mainly characterized by comprising a guide slot, which is matched with the section a of the eccentric shaft to realize the swinging of the eccentric shaft along the guide slot, and a section of thread, which is matched with the adjusting bolt 3 to fix the swinging angle of the eccentric shaft 1, wherein the thread usually adopts fine teeth to improve the resolution of the angle adjustment of the eccentric shaft 1.
The adjusting bolt 3 is shown in fig. 4, and is characterized by comprising a thread (a section) and an optical axis (B section), and other parts are similar to those of a common bolt.
The hoop 4 is shown in fig. 5, and is characterized by comprising a holding ring, which is matched with the eccentric shaft 1A section to provide supporting force and clamping force for the eccentric shaft 1, the locking thread of the hoop 4 is matched with a locking screw to clamp the eccentric shaft 4A section, and the tightening waist hole is matched with the adjusting bolt 3B section to fix the position of the hoop 4.
The structural features of the invention are as follows:
1) the C section of the eccentric shaft 1 is sleeved on the joint bearing and is arranged on the base, the tail end of the C section is provided with a handle, the eccentric shaft 1 is controlled to rotate around the axis of the joint bearing 6, and when the eccentric shaft 1 rotates, the position of the axis of the B section of the eccentric shaft changes, so that the position of the axis of the tension pulley 7 is adjusted, namely the wheel distance between the tension pulley 7 and the driving wheel is changed, and the abrasive belt is tensioned;
2) the tension pulley 7 is connected with a bearing and arranged at the section B of the eccentric shaft 1 and changes position along with the axial change of the section B of the eccentric shaft 1;
3) the section A of the eccentric shaft 1 is embedded into a guide groove of the guide groove block 2, so that the eccentric shaft 1 can swing along the direction of the guide groove;
4) 2 guide ways are installed on the base, adjusting bolts 3 are screwed in the threads of the guide ways, the optical axes of the 3B sections of the adjusting bolts are inserted into the hold hoop 4 to tightly push the waist holes, and the hold hoop 4 is sleeved at the tail end of the 1A section of the eccentric shaft.
The invention has the following steps:
1) sleeving the abrasive belt on the tension wheel 7 and the driving wheel;
2) the rotating handle 8 drives the eccentric shaft 1 to rotate, so that the abrasive belt is tensioned;
3) starting a driving wheel motor of the belt sander to enable the belt sander to run, observing the axial position and displacement of an abrasive belt along an eccentric shaft 1, if the abrasive belt deviates, rotating an adjusting bolt 3 to change the screwing amount of the adjusting bolt, driving the eccentric shaft 1 to swing until the abrasive belt runs stably and does not deviate any more, screwing a locking nut 9 at the moment, and fixing the position of the adjusting bolt 3;
4) rotating the handle 8 to loosen the abrasive belt and restore the deflected abrasive belt to the initial position;
5) and the locking screw 5 is screwed down to enable the anchor ear 4 to tightly hold the eccentric shaft 1, so that the eccentric shaft is prevented from deflecting in the polishing process.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (3)
1. An abrasive belt tensioning mechanism capable of preventing an abrasive belt from deviating comprises an eccentric shaft, a guide groove block, an adjusting bolt, a hoop, a locking screw, a joint bearing, a tensioning wheel, a handle and a locking nut;
the eccentric shaft comprises a first bearing section, an eccentric shaft section and a second bearing section, the eccentric shaft section is positioned between the first bearing section and the second bearing section, the first bearing section and the second bearing section are coaxial, and the axis of the eccentric shaft section deviates from the axes of the first bearing section and the second bearing section; the guide groove block is internally provided with a guide groove, and the guide groove block is provided with a thread matched with the adjusting bolt; the adjusting bolt comprises a thread section and a smooth shaft section; the hoop comprises a clasping ring which can be matched with the first bearing section of the eccentric shaft;
the eccentric shaft bearing is characterized in that the second bearing section of the eccentric shaft is arranged on a joint bearing, and the tail end of the second bearing section is provided with a handle for controlling the eccentric shaft to rotate around the axis of the joint bearing; the eccentric shaft is controlled to rotate by shaking the handle, the axial line position of the eccentric shaft section is changed, and the wheel spacing between the tension wheel and the driving wheel is changed, so that the abrasive belt is tensioned;
the tensioning wheel is connected with the bearing and arranged on the eccentric shaft section of the eccentric shaft, and displaces along with the axial change of the eccentric shaft section of the eccentric shaft; the first bearing section of the eccentric shaft is inserted into a guide groove in a guide groove block, so that the eccentric shaft can swing along the direction of the guide groove, and the threads on the guide groove block are matched with an adjusting bolt to fix the swing angle of the eccentric shaft;
the locking thread of the hoop is matched with the locking screw to clamp the first bearing section of the eccentric shaft, the optical axis section of the adjusting bolt is inserted into the tightly-pushing waist hole of the hoop to fix the position of the hoop, and the hoop is sleeved at the tail end of the first bearing section of the eccentric shaft.
2. Belt tensioning mechanism according to claim 1, characterized in that the thread in the guide groove block is a fine thread.
3. Method for realizing a belt tensioning mechanism for preventing deviation of a sanding belt according to claim 1, characterized in that it comprises the following steps:
1) sleeving the abrasive belt on the tension wheel and the driving wheel;
2) the rotating handle drives the eccentric shaft to rotate, so that the abrasive belt is tensioned;
3) starting a driving wheel motor of the belt sander to enable the belt sander to run, observing the axial position and displacement of an abrasive belt along an eccentric shaft, if the abrasive belt deviates, rotating an adjusting bolt to change the screwing amount of the adjusting bolt to drive the eccentric shaft to swing until the abrasive belt runs stably and does not deviate any more, and then screwing a locking nut to fix the position of the adjusting bolt;
4) rotating the handle to loosen the abrasive belt and restore the deflected abrasive belt to the initial position;
5) the handle is rotated to tension the abrasive belt, the locking screw is screwed down to enable the anchor ear to tightly hold the eccentric shaft, and the eccentric shaft does not deflect in the polishing process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611144947.5A CN106737030B (en) | 2016-12-13 | 2016-12-13 | Abrasive belt tensioning mechanism capable of preventing abrasive belt from deviating and implementation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611144947.5A CN106737030B (en) | 2016-12-13 | 2016-12-13 | Abrasive belt tensioning mechanism capable of preventing abrasive belt from deviating and implementation method thereof |
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| Publication Number | Publication Date |
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| CN106737030A CN106737030A (en) | 2017-05-31 |
| CN106737030B true CN106737030B (en) | 2021-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611144947.5A Active CN106737030B (en) | 2016-12-13 | 2016-12-13 | Abrasive belt tensioning mechanism capable of preventing abrasive belt from deviating and implementation method thereof |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107461466B (en) * | 2017-08-14 | 2019-11-05 | 芜湖慧盈自动化设备有限公司 | A kind of aligning, tuningout integral type movement band mechanism |
| CN108000300A (en) * | 2017-12-05 | 2018-05-08 | 上海航天设备制造总厂 | A kind of polishing end effector suitable for robot |
| CN107855891A (en) * | 2017-12-07 | 2018-03-30 | 上海航天设备制造总厂有限公司 | A kind of abrasive band suitable for narrow abrasive band is tensioned adjusting deviation device and its implementation |
| CN109454528A (en) * | 2018-12-28 | 2019-03-12 | 无锡常欣科技股份有限公司 | Rust remover driven axle offset assembly |
| CN110682190A (en) * | 2019-07-08 | 2020-01-14 | 上海航天设备制造总厂有限公司 | Abrasive belt tensioning and deviation adjusting mechanism capable of keeping tension force basically constant and implementation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5165203A (en) * | 1991-09-25 | 1992-11-24 | Chuang Bor Yann | Belt-grinding machine |
| CN201055969Y (en) * | 2007-02-06 | 2008-05-07 | 陈勇奇 | Eccentric shaft type bearing support governor mechanism |
| CN201324770Y (en) * | 2008-12-05 | 2009-10-14 | 中国重型机械研究院 | Eccentric sleeve deviation adjusting mechanism |
| CN201410641Y (en) * | 2009-06-24 | 2010-02-24 | 莱州市蔚仪试验器械制造有限公司 | Automatic tension device of abrasive band grinding machine |
| CN103921200A (en) * | 2014-04-29 | 2014-07-16 | 杭州祥生砂光机制造有限公司 | Front-arranged cam type sanding belt deviation correction mechanism for wide belt sanding machine and deviation correction method |
-
2016
- 2016-12-13 CN CN201611144947.5A patent/CN106737030B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5165203A (en) * | 1991-09-25 | 1992-11-24 | Chuang Bor Yann | Belt-grinding machine |
| CN201055969Y (en) * | 2007-02-06 | 2008-05-07 | 陈勇奇 | Eccentric shaft type bearing support governor mechanism |
| CN201324770Y (en) * | 2008-12-05 | 2009-10-14 | 中国重型机械研究院 | Eccentric sleeve deviation adjusting mechanism |
| CN201410641Y (en) * | 2009-06-24 | 2010-02-24 | 莱州市蔚仪试验器械制造有限公司 | Automatic tension device of abrasive band grinding machine |
| CN103921200A (en) * | 2014-04-29 | 2014-07-16 | 杭州祥生砂光机制造有限公司 | Front-arranged cam type sanding belt deviation correction mechanism for wide belt sanding machine and deviation correction method |
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| CN106737030A (en) | 2017-05-31 |
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