Classifications

• • 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
  • B24B39/00—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor
  • B24B39/04—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor designed for working external surfaces of revolution
• • 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
  • B24B33/00—Honing machines or devices; Accessories therefor
• • 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
• • 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
  • B24B21/004—Machines or devices using grinding or polishing belts; Accessories therefor using abrasive rolled strips
• • 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
  • B24B21/16—Machines or devices using grinding or polishing belts; Accessories therefor for grinding other surfaces of particular shape

Definitions

• the present invention relates to a superfinishing apparatus using a wrapping film, and more particularly, to a superfinishing apparatus used for performing a superfinishing process on a polished surface of a work that is rotated or reciprocated.
• the rubbing film wound in the direction opposite to the rotation direction of the mouth roller, i.e., in one direction, is driven by a contact roller capable of reciprocating in the axial direction of the roller. (A surface to be polished), whereby a uniform surface finish is applied to one surface of the roller.
• the structure that the above work is swung around the center of swing
• the wrapping film may be tensioned, but the moving directions of the two are the same and the rocking speed of the work is reduced. If it is large, the wrapper film will be pulled out excessively from the supply spool side. For this reason, there is a possibility that the surface to be polished of the workpiece cannot be polished while maintaining the tension of the wrapping film.
• the wrapping film has a structure in which the wrapping film is wound in the opposite direction, and if the wrapping film once used for polishing is replaced with a new wrapping film each time it is used, However, since the polishing operation is interrupted after each replacement, the working efficiency is significantly reduced.
• the workpiece is the above-described slide arm of the locker arm.
• the surface is slightly curved in the width direction as in the case of polishing a round surface such as one surface, the polishing cannot be performed along the surface to be polished curved in the width direction. Disclosure of the invention
• the present invention has been made to solve the above problems, and a pair of winding films for a rubbing film are held in the same plane, and are respectively driven by the other ends of their rotating shafts.
• a dynamic friction wheel is mounted, and the driven friction wheel is pressed by one of the driven gears disposed on both ends of a rotatable flat U-shaped swinging member and a driving friction wheel respectively mounted coaxially.
• Each driven gear held by the swinging member is engaged with a driving gear rotated by a drive motor, and the U-shaped contour of the swinging member has a final end of the wrapping film wound up.
• a drive switching cylinder for rotating the swinging member around its pivot shaft is provided, and a winding film to be wound is covered between the winding reels.
• An elastic pressing member connected to a pressing cylinder that presses toward the polishing surface is provided, and each take-up reel has a driven friction wheel on the side to be taken up that prevents the wrapping film from loosening.
• a rexilinder is provided to constitute a super finishing device using a rubbing film.
• each take-up reel Since the rotation direction of the pair of wrapping film take-up reels is controlled to be switched by the drive switching cylinder, effective use of the entire abrasive surface of the wrapping film is achieved.
• the driven friction wheel portion of each take-up reel is provided with a brake cylinder that exerts a pressing force when the driven friction wheel is on the driven side (driven side). Therefore, even if the oscillating work exerts a sliding force on the rubbing film in the same direction as the moving direction, the rubbing film is prevented from being pulled out excessively, and the tension is reduced. Enables polishing of oscillating workpieces to maintain.
• the polished surface of the workpiece is a circular arc-shaped surface such as a rocker arm
• the polished surface can always be polished while being in contact with the polished surface of the wrapping film.
• the entire abrasive surface of the wrapping film is effectively used.
• the wrapping film is pressed against the surface to be polished of the work by the elastic pressing member, even if the surface to be polished is slightly curved in the width direction of the wrapping film, the curved wrapping film is also bent. Polishing along the surface to be polished can be performed.
• FIG. 1 shows a wrapping film according to an embodiment of the present invention. It is a top view which shows the super finishing apparatus which was put.
• FIG. 2 is a rear view of the superfinishing apparatus, showing a part of FIG. 1 in cross section.
• FIG. 3 is a cross-sectional plan view of the superfinishing apparatus taken along the line m-m in FIG.
• FIG. 4 is a side view of a main part of the superfinishing apparatus, showing a part of FIG. 1 in a cross section.
• FIG. 5 is a plan view showing a super-finishing apparatus using a wrapping film according to another embodiment of the present invention.
• Figure 6 is a rear view der of the superfinishing apparatus showing a portion of FIG. 5 in cross-section ⁇ ? 0
• FIG. 7 is a side view of a main part of the superfinishing apparatus, showing a part of FIG. 5 in cross section.
• FIG. 1 to 4 show a super-finishing apparatus using a wrapping film according to an embodiment of the present invention.
• reference numeral 1 denotes a horizontal top plate provided on the upper part of the superfinishing device.
• the top plate 1 holds two winding reels 2 and 3 for a wrapping film in the same horizontal plane.
• Rotating shafts 4 and 5 are rotatably held by bearings 6 and 7.
• driven friction wheels 8, 9 having a V-shaped groove on the outer periphery and having the same diameter are attached.
• the upper surface plate 1 is provided with a pivot shaft 10 projecting downward at a position equidistant from the rotation shafts 4 and 5.
• a flat U-shaped swinging member 11 (FIG. 3) rotatably held at the lower end of the pivot shaft 10 has a shape capable of engaging with the driven friction wheels 8 and 9.
• Drive friction wheels 1 2, 13 are coaxially mounted with driven gears 16 and 17 having the same number of teeth via intermediate shafts 14 and 15 respectively.
• Reference numeral 19 denotes an intermediate plate held in parallel with the upper surface plate 1 by vertical axes 18 and 18.
• the intermediate plate 19 has the drive shaft 21 facing upward and the axis thereof is connected to the pivot.
• a drive motor 20 is mounted, which is arranged to coincide with the axis of the axis 10.
• the drive gear 22 attached to the upper end of the drive shaft 21 meshes with the two driven gears 16 and 17 at the same time, whereby the driven gears 16 and 17 are coaxial.
• the above-mentioned driving friction wheels 12 and 13 attached to the motor are rotated in the same direction at the same rotation speed.
• This switching is performed, for example, when the reflected light from the reflective tape affixed to the final end of the wrapping film 25 to be wound is detected by a photoelectric tube (both not shown).
• the rod 24 is moved in the left or right direction in FIG. 3 by the working fluid in 23. For example, as shown in FIG. 3, when the rod 24 is moved to the right and the rocking member 11 is rotated counterclockwise around the pivot 10. Since the driving friction wheel 12 is pressed by the driven friction wheel 8 to drive the winding reel 2, the winding reel 2 is driven by the other winding reel that is not driven. Take up the rubbing film 25 from 3.
• brake cylinders 26, 26 are provided to press the peripheral surfaces of the driven friction wheels 8, 9 with a set force.
• Reference numeral 27 denotes a pressing cylinder disposed between the take-up reels 2 and 3.
• the wrapping film 25 is provided with a holding portion at the tip of the rod 28 of the pressing cylinder 27.
• An elastic pressing member 29 such as hard urethane rubber attached via a material 29a is held so as to press against the surface to be polished of the work 30.
• the ⁇ rocker arm (work) 30 with the round surface (arc-shaped cross section) 30 a is fitted to the fixed shaft 32 projecting upward from the jig 31 and the tail end of the rocker arm 30 is closed. Pressing member 3 3 Stopper 3
• the jig 31 is attached to a vertical swing shaft 37 which is swung by a servomotor 35 via a speed reducer 36, and when the servomotor 35 is driven,
• the pressing cylinder 27 is actuated to push out the elastic pressing member 29 attached to the tip of the port 28, and the driven side winding reel 3 to the driving side winding reel 3 are pushed out.
• the rubbing film 25 wound up toward the handle 2 is pressed against the round surface 30a of the lock arm 30 with a set force.
• the driven friction wheel 8 on the winding reel 2 rotated by the drive gear 22 is driven by the brake cylinder 26.
• the driven friction wheel 9 on the driven take-up reel 3 receives the pressing action of the brake cylinder 26, so that the moving wrapping
• the film 25 is always kept in tension in any direction in which the rocker arm 30 is swung by the servomotor 35, and grinds the above-mentioned arc surface 30a.
• the round surface 30a of the rocker arm 30, which is held horizontally and swings, can be efficiently polished to a predetermined surface finish in a short time.
• the rocker arm 30 is rocked a set number of times and then stopped at a position where the radius surface 30a does not contact the elastic pressing member 29 by stopping the driving of the drive motor 20. At this stop position, the pressing action of the pressing member 33 is released, the rocker arm 30 is removed from the fixed shaft 32, and the next new rocker arm 30 is mounted on the fixed shaft 32. The tail end of the rocker arm 30 is pressed against the stopper 34 by the pressing member 33, and the drive motor 20 and the servomotor 35 are driven again to repeat the same polishing operation as described above.
• the reflected light from the reflection tape (not shown) attached to the final end of the wrapping film 25 is generated. Detected by a phototube (not shown). Then, by the output from the photoelectric tube, the port 24 of the cylinder 23 is switched from the rightward pressing force shown in FIG. 3 to the leftward pressing force, and the rocking member 11 is pushed. Rotate clockwise around pivot axis 10. As a result, the driving friction wheel 12 which had been driving the driven friction wheel 8 until now is released from the driving action, and the other driving friction wheel 13 presses the other driven friction wheel 9 to drive the driven friction wheel 9. The switching between the drive side and the driven side (driven side) is performed between the take-up reels 2 and 3.
• the output from the photoelectric tube also simultaneously switches the pressing direction of each rod of the two brake cylinders 26, 26,
• the wrapping film 25 is automatically rewound in the opposite direction, and the wrapping film 25 having polishing ability is repeatedly used.
• the round surface 30a of the above-mentioned docker arm 30 can be polished to a predetermined surface finish.
• the polishing of the round surface 30a is performed by the wrapping film.
• the rubbing film 25 is stopped after feeding a certain amount, and the rocker arm 30 is swung to polish the round surface 30a. You may do it.
• FIG. 5 to FIG. 7 show another embodiment of the present invention.
• a cylindrical member provided downward from the top plate 1 in the embodiment.
• the slide balls 38 and 38 are held by slide balls 39 and 39 mounted between the vertical shafts 18 and 18 so as to be slidable in the vertical direction along the vertical shafts 18. I have.
• the cylindrical members 38, 38 are connected by a horizontal connecting member 40.
• the drive shaft 21 of the drive motor 20 is locked by the connecting member 40, and the upper end face is formed by a drive gear 22. It is rotatably held by a bearing 41 that comes into contact with the lower surface of the boss portion 2 2a of the boss.
• the tubular member 49 is rotatably held by bearings 43, 43, and a key guide groove 42 formed in the length direction of the drive shaft 21 includes:
• the half-moon key 44 held on the tubular member 49 engages with the inner surface of the hollow tube 50 mounted between the bearings 43, 43, and the length of the drive shaft 21 Movement in the direction can be performed smoothly.
• Reference numeral 45 denotes an up-and-down moving cylinder in which a mouth 46 is directed vertically downward, and the up-and-down moving cylinders 45 and 45 are cylindrical members 38 and 3 by L-shaped members 47 and 47, respectively. 8 and the lower end of each of the ports 46 is fixed to the intermediate plate 19. For this reason, when a downward fluid pressure acts on the rods 46, 46, the vertical cylinders 45, 45 move upward instead of the ports 46, which cannot move downward. Is done.
• Reference numeral 48 denotes a grinding wheel having a polishing surface having a U-shaped cross section.
• the grinding wheel 48 is configured so as to be movable toward the rocker arm 30 and is opposed to the rocker arm 30 that is swung.
• a round surface 30a having the center of oscillation as the center is formed.
• the mouth arm 30 When the formation of the round surface 30a by the grinding wheel 48 is completed, the mouth arm 30 is moved outwardly (the counterclockwise in FIG. 5) so that the round surface 30a does not contact the grinding wheel 48. After being once stopped at the position of swinging in the direction (direction), the round surface 30 a is similarly rotated by the servo motor 35 to a position where it can face the elastic pressing member 29. At the same time as the rotation stops, the direction of the fluid pressure acting on each of the ports 46 of the vertical cylinders 45, 45 is switched, and the top plate 1 is lowered to the original height position. .
• the rocker arm 30 is moved by the servo motor 35 in the angular range set around the swing center ⁇ .
• the rocking means of the device for forming the round surface 30 a having an arc-shaped cross section on the rocker arm 30 is shared, and the rock surface 3 immediately after being formed by the grinding wheel 48 is used. 0a can be super-finished by wrapping film 25.
• the grinding wheel 48 is driven by its rotation. Along with the means, it is configured to be able to advance and retreat with respect to the rocker arm 30 so that the jig 31 can be rotated clockwise around the swing center 0 after the grinding wheel 48 is retracted. In such a case, the means for vertically moving the top plate 1 may be omitted.
• the swinging member When the winding end or end of the wrapping film is detected, the swinging member is rotated around the pivot shaft to switch the drive side of the winding reel.
• the wrapping film which still has sufficient polishing capacity, is repeatedly used during rewinding. It can be used for polishing.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=18235563

Family Applications (1)

Country Status (8)

Families Citing this family (23)

Citations (2)

Family Cites Families (2)

• 1987
  • 1987-12-26 JP JP62330698A patent/JPH0624682B2/ja not_active Expired - Lifetime
• 1988
  • 1988-12-23 WO PCT/JP1988/001307 patent/WO1989006178A1/ja active IP Right Grant
  • 1988-12-23 EP EP89900890A patent/EP0349653B1/en not_active Expired - Lifetime
  • 1988-12-23 KR KR1019890701141A patent/KR910009720B1/ko not_active Expired
  • 1988-12-23 DE DE89900890T patent/DE3882525T2/de not_active Expired - Fee Related
  • 1988-12-23 US US07/381,743 patent/US4999953A/en not_active Expired - Lifetime
  • 1988-12-23 BR BR888807390A patent/BR8807390A/pt not_active IP Right Cessation
• 1989
  • 1989-01-17 IN IN46/CAL/89A patent/IN171208B/en unknown

Patent Citations (2)

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