JPH085004Y2 - Wrapping equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a lapping apparatus for precisely finishing a relatively large flat surface, and more particularly to a lapping apparatus suitable for mirror polishing a stainless steel plate. .

[Conventional technology]

A grinding means for grinding a plate to be reciprocally moved relative to the rotary head while rotating and revolving a plurality of grinding wheels attached to a rotary head using a planetary gear mechanism is It is described in Japanese Laid-Open Patent Publication No. 60-191750 and grinds the plate to be polished while moving a box in which a large number of pressing force adjusting type polishing tools are juxtaposed in parallel with an adjustable spring with respect to the plate to be moved back and forth and left and right. Grinding means to do so is described in JP-A-63-11264, and further, an apparatus for lapping while supplying an abrasive to the front surface of the lap is also described in JP-A-61-265264. Has been known.

[Problems to be solved by the device]

In the conventional apparatus disclosed in the above-mentioned Japanese Patent Laid-Open No. 63-11264, the pressing force is applied to the plate to be polished by the biasing of each polishing tool by a spring provided individually, so that the plate to be polished is pressed against the plate to be polished. Not only must the pressure be adjusted individually, but it is extremely difficult to keep the pressing force of all the polishing tools always equal, due to changes over time such as abrasion of the polishing tools or deterioration of springs. If the pressing force on the polishing plate is different, there is a serious drawback that the smoothing accuracy is reduced.

Further, in the lapping device described in JP-A-61-265264, an abrasive is supplied by a supply pipe into a cup-shaped gap of the upper open type formed in the tool. Since the gap portion of (1) rotates at a high speed together with the tool, the liquid abrasive causes a problem of being scattered from the upper open portion to the surroundings by centrifugal force.

Therefore, an object of the present invention is to provide a lapping device capable of polishing a flat plate surface of a large area onto a mirror surface of a linear scratch having a high degree of smoothness with a relatively small equipment. It is an object of the present invention to provide a wrapping device that can supply water accurately without scattering.

[Means for solving the problem]

In order to achieve the above object, the present invention is provided with a plurality of lapping heads provided so as to rotate and revolve the lap in a suspended state, and the front surface of the lap is moved forward, backward, leftward and rightward while pressing the polishing plate. In addition to associating each wrap with a separate pneumatic cylinder mechanism, all pneumatic cylinder mechanisms communicate them to a common source of pressurized air to provide uniform pressure to all laps. The main feature is that it is pressed against the plate to be polished based on the above, and as an equipment for supplying the abrasive, in addition to forming the abrasive supply jacket in the state of surrounding the lap shaft at the bottom of the holding frame, A polishing agent supply passage having an upper end opening to the jacket is formed in the center near the lower end of the lap shaft, and the polishing agent is supplied to the front surface of the wrap through the jacket and the polishing agent supply passage. And, also, in which rotatably constructed by connecting the sun gear shaft to the motor.

[Action]

By rotating the lap itself, the rubbing track of the lap draws a small trochoidal curve, while following the large trochoidal curve by the rotating movement of the wrapping head and the zigzag movement by the vertical feed mechanism and the horizontal feed mechanism, it becomes a so-called double trochoidal curve, While polishing the surface of the plate to be finely and evenly rubbed, the scratch-free mirror polishing is lapped with high efficiency.

All laps are pressed against the surface to be polished by pressurized air from a common source of pressurized air, and the surface of the plate to be polished is constantly rubbed under a uniform pressure to provide uniform lapping over a wide area with high smoothness. Is done.

The abrasive is constantly supplied to the front surface of the lap without being scattered through a jacket that partially surrounds the lap shaft and an abrasive supply passage formed in the lap shaft.

〔Example〕

Hereinafter, a lapping apparatus of the present invention will be described in detail with reference to the embodiments shown in the drawings.

1 is a partially longitudinal front view of a lapping apparatus showing an embodiment, which is generally a base 1 on which an abrading plate W can be mounted immovably on the upper surface, and left and right sides of the base 1. Rails 4 installed on both sides in the left-right direction on the underframe 3 that can move along the rails 2 in the front-rear direction.
A plurality of wrapping heads 6 and 6 rotatably provided under a suspended state on a support frame 5 that can move along 4
A lateral feed mechanism 7 for rolling the support frame 5 in the left-right direction
And a vertical feed mechanism 8 for rolling the underframe 3 in the front-back direction.
And

The underframe 3 is provided with vertical movement preventing rollers 10 and 10 on both sides of the legs 9 and 9 at appropriate intervals in the front-rear direction, and rails 11 and 11 are provided to these rollers 10, 10 and 11. , 11
While allowing the underframe 3 to move smoothly in the front-rear direction with the rails 2 and 2 being in contact with the rails 2, 2, a vertical feed mechanism 8 is provided on the sprockets 12, 12 on both outer sides of the base 1. A chain 13 that travels in the front-rear direction is provided under the condition of being hung over, and the underframe 3 is engaged with the passive arm 14 on the chain 13, and the support frame 5 has an appropriate front-rear direction at both left and right ends thereof. The vertical movement prevention rollers 15 and 15 are provided with keeping the space between them, and the supporting frame 5 is smoothly moved to the left and right with the front and rear movement prevention rollers 16 and 16 with the rail 4 being held in contact with the rail 4. In addition to being able to move, the horizontal feed mechanism 7 is attached to the female screw 19 of the support frame 5 while the left and right axis screw rods 17 are provided on the underframe 3 so that they can be rotated by the passive wheels 18. Adopt a screw feed type that is screwed in.

As the lapping head 6, bearings 20 and 20 in the vertical axis direction are provided on the support frame 5, and the hollow shaft 22 of the planetary gear holding frame 21 and the sun gear shaft 23 are pierced and supported in a coaxial relationship therewith. As it is, the sun gear 24 in the holding frame 21
A plurality of planetary gears 25, 25, which are fixed to 23 and mesh with the sun gear 24, are provided and the shafts thereof are suspended as lap shafts 26, and the disc-shaped wraps 27 are provided at the lower ends of the lap shafts 26. And a gear-type passive pulley 28 is provided on the upper end of the hollow shaft 22 of the holding frame 21, and the motor is driven at a relatively low speed via a reduction gear and a toothed belt (neither is shown). The holding frame 21 is made rotatable, and a V pulley 29 is provided near the upper end of the sun gear shaft 23.
The lap is made to be fixed by rotating the V belt and a motor (not shown) at a desired speed such as a relatively high speed or a low speed, or holding it in a stopped state.
Allows 27 to be rotated and revolved by the planetary gear mechanism.

In order to press the individual wraps 27 against the plate W under uniform pressure, a pneumatic cylinder mechanism 30 is attached to the upper end of the wrap shaft 26 at the upper part of the holding frame 21, and all the pneumatic cylinder mechanisms 30 are attached. Are connected to a common pressurized air source, and an abrasive supply passage 31 is formed near the lower end of the lap shaft 26, and the lap shaft 26 is partially provided around the lower end of the lap shaft 26. The abrasive supply jacket 32 is formed in the surrounding state and provided on the holding frame 21, and the upper end of the abrasive supply passage 31 is opened to the jacket 32 and the lower end is opened to the front surface of the wrap 27. The abrasive is supplied to the front surface of the wrap 27 through the jacket 32 and the supply passage 31 without being scattered around.

The number of the lapping heads 6 is not limited to two as shown in the figure, and may be one or three or more.

With both of the above configurations, each wrap 27 of the lapping head 6 is revolved while revolving under the use of a planetary gear mechanism, and the lapping head 6 is swept in a zigzag manner by the lateral feed mechanism 7 and the vertical feed mechanism 8. Due to
While the front surface of each lap 27 is pressed against the surface of the plate to be polished W under uniform pressure, the lap 27 is rubbed so that a double trochoidal curve is drawn. It is fine.

[Effect of device]

As described above, the present invention has the following effects.

a. Since all the laps 27 are configured to be able to move forward and backward by the cylinder mechanism 30 that communicates with each other by a common pressurized air source, the laps 27 are lapped while being pressed against the plate W under uniform pressure. Therefore, it is possible to polish a large area flat surface to a uniform mirror surface with high smoothness.

b. A polishing agent supply jacket 32 that surrounds the wrap shaft 26 is formed around the wrap shaft 26, and this is provided in the holding frame 21, and the lap shaft 26 is provided with an abrasive supply passage 31 to form a jacket.
Since the abrasive is supplied to the front surface of the wrap 27 through the 32 and the abrasive supply passage 31, the abrasive can be effectively and evenly supplied to necessary places without being scattered around.

c. Since the sun gear shaft 23 is configured to be rotatable by a motor, the rotation speed of the lap 27 can be adjusted with respect to the revolution speed, so that the speed of a part of the device can be changed without changing the operating speed of the entire device. Thus, the finishing degree can be arbitrarily selected, and, in combination with the polishing function having high smoothness accuracy, the lapping can be easily performed to an arbitrary finishing degree with high smoothness.

[Brief description of drawings]

The drawing is a partially longitudinal front view showing a lapping apparatus of the present invention in one embodiment. 1 ... Base 3 ... Underframe 5 ... Supporting frame 6 ... Lapping head 7 ... Horizontal feed mechanism 8 ... Longitudinal feed mechanism 20 ... Bearing 21 ... Holding frame 22 ... Hollow shaft 23 ... Sun Gear shaft 24 …… Sun gear 25 …… Planetary gear 26 …… Lap shaft 27 …… Lap 30 …… Pneumatic cylinder mechanism 31 …… Abrasive agent supply path 32 …… Jacket W …… Plate to be polished

Claims (3)

[Scope of utility model registration request] 1. A base (1) for immovably mounting a polishing plate (W) on an upper surface thereof, and an underframe (3) for moving in the front-rear direction above the base (1). At the same time, a support frame (5) that moves in the left-right direction is provided on the underframe (3),
Further, a lateral feed mechanism (7) for moving the support frame (5) in the left-right direction and a vertical feed mechanism (8) for moving the underframe (3) in the front-rear direction are provided, and the support frame (5) is rotatable. A plurality of lapping heads (6), (6) provided in the above are provided in a suspended state, and as the lapping head (6), a support frame (5) is provided with a bearing (20) in the vertical axis direction. While the hollow shaft (22) of the planetary gear holding frame (21) and the sun gear shaft (23) are axially supported in a penetrating manner, the sun gear (24) is placed in the holding frame (21). A planetary gear (2) that is fixed to (23) and meshes with this sun gear (24).
5) is provided and the shaft of each planetary gear is applied to the lap shaft (26) and hangs down, and the front surface of the lap (27) is pressed against the abraded plate (W) at the lower end of the lap shaft (26). And the hollow shaft (22) of the holding frame (21) is connected to the motor with the intervention of the speed reducer to rotate the wrap (27).
The holding frame (21) also has a pneumatic cylinder mechanism (30) for pressing the lap (27) against the plate (W) to be polished, which is associated with each lap shaft (26). And a pneumatic cylinder mechanism (30) connected to a common pressurized air source. 2. A polishing agent supply jacket (32) in a state of partially enclosing the lap shaft (26) is provided in the lower portion of the holding frame (21), and the lap shaft (26) is ground at the center of the lower end thereof. The agent supply passage (31) is bored so that the upper and lower ends thereof are opened to the front surfaces of the jacket (32) and the wrap (27), respectively, and the abrasive is wrapped through the jacket (32) and the supply passage (31). The wrapping device according to claim 1, wherein the wrapping device is configured to supply to the front surface of (27). 3. The lapping device according to claim 1, wherein the sun gear shaft (23) is connected to a motor so as to be rotatable.