CN101633141B - Pinch wheel polishing and grinding mechanism - Google Patents
Pinch wheel polishing and grinding mechanism Download PDFInfo
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- CN101633141B CN101633141B CN2009100536249A CN200910053624A CN101633141B CN 101633141 B CN101633141 B CN 101633141B CN 2009100536249 A CN2009100536249 A CN 2009100536249A CN 200910053624 A CN200910053624 A CN 200910053624A CN 101633141 B CN101633141 B CN 101633141B
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Abstract
A pinch wheel polishing and grinding mechanism comprises a feeding device, a polishing and grinding head and a pinch wheel device; the polishing and grinding head comprises a frame, a drive motor, a driving wheel, a driven wheel and an abrasive belt; and a pinch wheel of the pinch wheel device is arranged on a connecting piece, an upper support leg and a lower support leg of the connecting piece are rotatably connected with an upper support shaft and a lower support shaft respectively, the upper support shaft is fixed on the frame, and the lower support shaft is movably connected with the frame. The pinch wheel polishing and grinding mechanism has the advantages of employing the scheme of additionally providing the polishing and grinding head with the pinch wheel device, thus causing the abrasive belt to closely fit work pieces, increasing cutting force of the abrasive belt on the surface of work pieces, improving polishing and grinding efficiency and having better polishing and grinding effect. The pinch wheel polishing and grinding mechanism is especially applicable to machining roll surfaces with roll diameter more than phi 200mm, and surface roughness Ra not more than 2.
Description
Technical field
The present invention relates to field of machining, relate in particular to a kind of pinch wheel polishing and grinding mechanism that product surface is carried out the rubbing down processing.
Background technology
It is very important procedure of processing in the product manufacturing procedure that the rubbing down processing is carried out on the surface of product, especially for roll surfaces such as each big steel mill high, medium and low temperature section furnace roller, technology rollers, behind detonation flame spraying, its coating hardness HV 〉=1100, surface roughness generally about Ra12, does not meet the surface roughness value requirement of the needed all size of steel mill, need carry out rubbing down to its stiff dough and handle, therefore, rubbing down efficient and effect become one of key factor that influences production efficiency and quality.
Existing polishing and grinding head comprises frame, drive motors, driving wheel, driven pulley and abrasive band, and drive motors is installed on the frame, and driving wheel is directly installed on the main shaft of drive motors, and the abrasive band is enclosed within on driving wheel and the driven pulley.Its shortcoming is: because there is certain length in the abrasive band between driving wheel and the driven pulley, cause the abrasive band when rubbing with workpiece, rock in the abrasive band, the force part instability, the sand grains on the abrasive band is little to the cutting force of surface of the work, and rubbing down efficient is low, in practical operation, directly surpass Φ 200mm for roller, the roll surface of its surface roughness Ra≤0.8 is adding the requirement that is difficult to reach expection man-hour.
Summary of the invention
In order to address the above problem, the invention provides a kind of simple in structure, rubbing down efficient height, the effective pinch wheel polishing and grinding mechanism of rubbing down.
To achieve these goals, technical scheme of the present invention is as follows:
Pinch wheel polishing and grinding mechanism, comprise feed arrangement and polishing and grinding head, described polishing and grinding head comprises frame, drive motors, driving wheel, driven pulley and abrasive band, it is characterized in that: also comprise a pressing wheel device, the pinch roller of described pressing wheel device is installed on a connection piece, the upper and lower leg of the described connector upper and lower back shaft that is rotatably connected respectively, described upper support axle is fixed on the frame, and described lower support axle and frame flexibly connect.
Further, in the present invention, described feed arrangement comprises the vertical slide carriage that can vertically move, and is arranged on the vertical slide carriage and transversely movable horizontal slide carriage; Described polishing and grinding head is fixed on the horizontal slide carriage.
Further, in the present invention, pinch roller adopts aluminium or steel to make, the elastic ring that its surface coverage has rubber to make.
Beneficial effect of the present invention is:
1, the present invention adopts the scheme of setting up pressing wheel device on polishing and grinding head, makes between abrasive band and the workpiece to fit tightly, and increases the cutting force of abrasive band to surface of the work, improves rubbing down efficient, and the rubbing down better effects if.
2, the present invention is simple in structure, and cost is low, is convenient to promote.
The present invention is particularly useful for working roll and directly surpasses Φ 200mm, and surface roughness need reach the roll surface of Ra≤2.
Description of drawings
Describe the present invention in detail below in conjunction with the drawings and specific embodiments:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is that the A of Fig. 1 is to schematic diagram;
Fig. 3 is the structural representation of pressing wheel device of the present invention.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
Referring to Fig. 1,2 and 3, a kind of pinch wheel polishing and grinding mechanism, its feed arrangement comprise and are arranged on the vertical slide carriage 5 on the C6163B lathe (among the figure indicate) and are arranged on horizontal slide carriage 4 on the vertical slide carriage 5.The first precise ball screw pair is installed on the body of lathe bed, and vertically moving of vertical slide carriage 5 is to drive the nut drive of the screw mandrel of the first precise ball screw pair by the precise ball screw pair by servomotor.Horizontal slide carriage 4 can laterally slide on the guide rail of vertical slide carriage 5, and horizontal slide carriage 4 is moving by the second precise ball screw subband by another servomotor.
Polishing and grinding head comprises frame 10, drive motors 2, driving wheel 11, driven pulley 8 and abrasive band 9.The right-hand member of frame 10 welds a fixed head 7, and this fixed head 7 is fixed on the horizontal slide carriage 4 by a pressing plate 6.The mobile of polishing and grinding head is to drive it by the vertical slide carriage 5 of the main spindle box driving of lathe to vertically move; Laterally move with moving of horizontal slide carriage 4.
In this embodiment, the output speed of drive motors 2 is 2830r/min, power 1.1KW, and abrasive band speed is 20m/s-25m/s, the abrasive band is 60 particle diamond abrasive bands, abrasive band length 1200-1300mm, width 50mm.
Be welded with upper and lower leg (12,15) on the connector 19, upper and lower leg (12,15) connects upper and lower back shaft (14,17) respectively, and upper support axle 14 can be around last leg 12 rotations, and lower support axle 17 can rotate around lower support leg 15.Have groove 3 on frame 10, upper support axle 14 passes this groove 3 and by locking nut 13 lockings, is with spring 16 on the lower support axle 17, and lower support axle 17 passes groove 3, and spring 16 is crushed between connector 19 and the frame 10.Under the effect of pinch roller 18, the abrasive band between driving wheel and the driven pulley is in tensioning state all the time, and the force part is constant, and the sand grains on the abrasive band is big to the cutting force of surface of the work.According to the shape and the surface roughness requirement of workpiece, can suitably regulate the position of lower support axle 17, thereby regulate the position of pinch roller 18.
During work, workpiece is installed on the lathe spindle, and rotates with lathe spindle, and rotate under the drive of drive motors in abrasive band 9.Under the drive of vertical slide carriage 5, polishing and grinding head is close and touch workpiece, carries out rubbing down and handles.Under the effect of pinch roller 18, fit tightly between abrasive band 9 and the workpiece, increase the cutting force of abrasive band to surface of the work, improve rubbing down efficient, the rubbing down better effects if.
Following table is for increasing the technical parameter comparison sheet of pressing wheel device front and back:
More than show and described basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in the foregoing description and the specification is principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the present invention.The protection domain that the present invention requires is defined by appending claims and equivalent thereof.
Claims (2)
1. pinch wheel polishing and grinding mechanism, comprise feed arrangement and polishing and grinding head, described polishing and grinding head comprises frame, drive motors, driving wheel, driven pulley and abrasive band, it is characterized in that: also comprise a pressing wheel device, the pinch roller of described pressing wheel device is installed on a connection piece, the upper and lower leg of the described connector upper and lower back shaft that is rotatably connected respectively, described upper support axle is fixed on the frame, and described lower support axle and frame flexibly connect; Described feed arrangement comprises the vertical slide carriage that can vertically move, and is arranged on the vertical slide carriage and transversely movable horizontal slide carriage; Described polishing and grinding head is fixed on the horizontal slide carriage.
2. pinch wheel polishing and grinding mechanism according to claim 1 is characterized in that, pinch roller adopts aluminium or steel to make, the elastic ring that its surface coverage has rubber to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100536249A CN101633141B (en) | 2009-06-23 | 2009-06-23 | Pinch wheel polishing and grinding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100536249A CN101633141B (en) | 2009-06-23 | 2009-06-23 | Pinch wheel polishing and grinding mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101633141A CN101633141A (en) | 2010-01-27 |
| CN101633141B true CN101633141B (en) | 2011-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100536249A Active CN101633141B (en) | 2009-06-23 | 2009-06-23 | Pinch wheel polishing and grinding mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN101633141B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522047A (en) * | 2016-12-28 | 2017-03-22 | 中车北京二七机车有限公司 | Steel rail milling and grinding vehicle, and grinding belt pressing device thereof |
| CN107745310A (en) * | 2017-11-16 | 2018-03-02 | 湖南盛世威得科技有限公司 | The Watchcase special grinding machine of frosted tape crimp can be prevented |
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2009
- 2009-06-23 CN CN2009100536249A patent/CN101633141B/en active Active
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| CN101633141A (en) | 2010-01-27 |
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