JPH0435856A - Surface polishing device for plate like metal member - Google Patents

Abstract

PURPOSE:To simultaneously polish one face and the other face of a plate like metal member, by providing a 1st rotating grinding wheel and 2nd rotating grinding wheel and transfer body in the extending direction of a rotating shaft freely deflectably elastically. CONSTITUTION:In the case of the size of a gap G at the setting time being set slightly smaller than the thickness of a plate like metal member W, the metal member W is pressed with its interposition by a 1st rotating grinding wheel 50 and 2nd rotating grinding wheel 60 in the actual polishing treatment time even in the case of a small difference (d) being caused between the center level L1 of the gap G at the setting time and that L2 in the thickness direction of the metal member W. The three of the 1st rotating grinding wheel 50, 2nd rotating grinding wheel 60 and a transfer body 70 become balanced with the their deflections in small quantities each accordingly. Therefore the pressure of the 1st rotating grinding wheel 50 to one face of the metal member W and that of the 2nd rotating grinding wheel 60 to the other face become in an equal state. Consequently, one face and the other face of the plate like metal member W are simultaneously finished with polishing by the 1st and 2nd rotating grinding wheels 50, 60.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a surface polishing apparatus for a plate-shaped metal member for performing, for example, hairline polishing on the surface of the plate-shaped metal member.

[Conventional technology]

Conventionally, when polishing both the surfaces of one side and the other side of a plate-shaped metal member, for example, a polishing device equipped with a disc-shaped rotating grindstone is used to polish one side first, and then the plate-shaped metal member is polished. After turning the metal member upside down and polishing the other side, or polishing one side with a rotary grindstone installed on one side of the running path while the plate-shaped metal member is running, the process continues. Usually, the other surface is polished using a rotating grindstone provided on the other side of the road.

[Problem to be solved by the invention]

Conventional polishing equipment polishes one side and the other side of a plate-shaped metal member in separate processes, which requires a long processing time and makes it difficult to achieve the same finish on both sides. There was a problem.

The present invention has been made based on the above circumstances, and a first object of the present invention is to simultaneously polish one side and the other side of a plate-shaped metal member with a simple configuration. Moreover, it is an object of the present invention to provide a surface polishing device for a plate-shaped metal member, which can provide the same finished state on the negative side and the other side.

A second object of the present invention is to use the above-mentioned device to equally and easily perform the dressing process (refacing) required to maintain the outer peripheral surfaces of the two rotating grindstones in a proper condition. An object of the present invention is to provide a surface polishing device for a plate-shaped metal member that can be used to polish a surface of a plate-shaped metal member.

[Means to solve the problem]

The surface polishing device for plate metal members of the present invention includes a frame, a rotating shaft provided on the frame and extending in one direction, and a rotating shaft screwed into a first screw portion formed on the rotating shaft. a first movable substrate supported movably in an extending direction; a first rotary drive shaft whose intermediate portion is rotatably supported on the first movable substrate; a tip end of the first rotary drive shaft; a first polishing mechanism comprising a disc-shaped first rotary grindstone provided in the rotary shaft and a first rotary drive source connected to a base end of a first rotary drive shaft; a second movable substrate supported movably in the extending direction of the rotating shaft, the second movable substrate being screwed into a second screw portion formed apart from the screw portion in a reverse screw relationship with the first movable substrate; , on the second movable substrate, a second rotary drive shaft whose intermediate portion is rotatably supported; and a rotary shaft that is connected to the first rotary grindstone at the tip of the second rotary drive shaft; a second polishing mechanism consisting of a second rotary grindstone in the form of a disc whose outer peripheral surfaces face each other in the extending direction and a second rotary drive source connected to the base end of the second rotary drive shaft; , while holding the plate metal member to be polished,
a conveying body that is moved to pass tangentially between the rotating whetstone and the second rotating whetstone, and the first rotating whetstone, the second rotating whetstone, and the conveying body move in the direction in which the rotating shaft extends. Characterized by being elastically deflectable.

Furthermore, the rotating shaft extends into a third threaded portion formed at a position outward from the first threaded portion of the rotating shaft and having a pitch twice that of the first threaded portion in the forward thread direction. A first dresser supported so as to be movable in the direction is screwed together with the second threaded portion formed at a position outward from the second threaded portion of the rotating shaft, and has a pitch in the forward threaded direction. A second screw part supported movably in the extending direction of the rotating shaft by a fourth screw part having a double diameter.
are screwed together, and the rotation of the rotating shaft causes the first dresser and the second dresser to move twice as much in the same direction as the first and second rotating grindstones, respectively. Characterized by being moved.

〔Example〕

Embodiments of the present invention will be specifically described below with reference to the drawings.

FIG. 1 is an explanatory diagram showing an outline of the configuration of main parts in an embodiment of the present invention. In this example, a rotating shaft 20 extending in the vertical direction is rotatably supported by the frame 10 at its upper and lower ends, and this rotating shaft 20 is connected to a shaft rotation drive motor 26 via a worm gear mechanism 27. There is.

A first screw portion 21 is formed in an upper portion of the rotating shaft 20, and a first movable substrate 31 is supported by a rail (not shown) so as to be movable only in the vertical direction. are screwed together. This first movable substrate 3
A pillow block 33 is fixed on the pillow block 33, and a first rotary drive 1ll extends horizontally to the pillow block 33.
The lI 34 is rotatably supported at its intermediate portion, and a first rotary grindstone 50 is provided at the tip 34A of the first rotary drive shaft 34 so as to rotate within a vertical plane. The motor 3 provided on the first movable substrate 31 is connected to the base end 34B of the first rotary drive shaft 34 via an endless belt 35 that transmits rotational force while suppressing the base end 34B upward.
2 are connected, thereby configuring a first polishing mechanism.

On the other hand, a second threaded part 22 having a reverse threaded relationship with the first threaded part 21 is formed in a lower part of the rotating shaft 20, and this second threaded part 22 has a rail (not shown). A second movable substrate 41 supported so as to be movable only in the vertical direction is screwed together.

A pillow block 43 is fixed on this second movable substrate 41, and a second rotational drive shaft 44 extending horizontally on this pillow block 43 is rotatably supported at an intermediate portion thereof, and A second rotary whetstone 60, which is the same as the first rotary whetstone 50, is disposed at the tip 44A of the drive shaft 44 so as to face the lowest part of the outer peripheral surface of the first rotary whetstone 50 with a gap G therebetween. It is arranged to rotate in a vertical plane. A motor 42 provided on the second movable substrate 41 is connected to the base end 44B of the second rotary drive shaft 44 via an endless belt 45 that transmits rotational force while suppressing the base end 44B downward. are connected, thereby configuring a second polishing mechanism.

70 is a conveying body, and this conveying body 70 runs in the horizontal direction while fixing and holding the plate-shaped metal member W to be polished so that the part to be polished protrudes. W is the first rotating grindstone 50 and the second rotating grindstone 60
A pair of guide rails 7 extending in parallel so as to horizontally pass through the gap G between the guide rails 7 along the tangential direction thereof.
It is set up to run on I and 72.

The first rotating grindstone 50 and the second rotating grindstone 60
and the carrier 70 are each able to be elastically deflected slightly in the vertical direction. To be more specific, as shown in FIG.
36 is tightened by a bolt donut 39 via a spring 37 with a slight margin, so that it is fixed so that it can be displaced vertically by a very small distance. In this state, the base end 34B of the first rotary drive shaft 34 is restrained upward by the tension of the endless belt 45, so the first rotating grindstone 50 is restrained downward. . Further, the pillow block 43 related to the second rotating grindstone 60 is also fixed by a similar mechanism so as to be elastically deflectable in the vertical direction.
0 is a state of being suppressed upward.

Furthermore, as shown in FIG. 3, of the guide rails 71 and 72 that serve as the running path of the carrier 70, a guide rail that fixes one guide rail 71 on the side from which the polished portion of the plate-shaped metal member W protrudes. The fixing members 73 and 74 are fixed by being tightened to the frame 10 with a slight margin by bolts 78 via springs 77, and
The guide rail fixing members 75 and 76 that fix the other guide rail 72 are fixed to the frame 10 with bolts 79, so that the holding portion side of the carrier 70 can be elastically dominant in the vertical direction slightly. has been done.

In the above, the vertical deviation tolerance of each of the first rotating grindstone 50 and the second rotating grindstone 60 is, for example, 0.5.
+nm, therefore, the gap G is set to be expandable and retractable within the range of lff1m, and the allowable vertical deviation of the carrier 70 is, for example, ±Q, 5 mm.

According to the above configuration, when the rotating shaft 20 is rotated, the first movable substrate 31 and the second movable substrate 41 can be moved only in the vertical direction, and the first screw portion 21 and the second screw portion Since the portions 22 are in a reverse screw relationship, they are moved in a direction away from each other or in a direction toward each other depending on the direction of rotation. Then, the pitch of the first threaded portion 21 and the pitch of the second threaded portion 21 are determined.
By making the pitch of the threads of the first grinding wheel 50 the same, the center level of the gap G between the bottom of the outer circumferential surface of the first rotating grinding wheel 50 and the top of the outer circumferential surface of the second rotating grinding wheel 60 is always constant. Become.

Therefore, by setting the size of the gap G according to the thickness of the plate-shaped metal member W and driving the motor 32 and the motor 42, the first rotary whetstone 50 and the second rotary whetstone 6 are
0 is rotated, when the conveyor 70 is run to pass the plate-shaped metal member W through the gap G, the upper surface of the plate-shaped metal member W is polished by the first rotating grindstone 50, and at the same time the lower surface is polished by the second rotating grindstone 60.

Here, in an example of the polishing process, for example, the first rotating grindstone 50 and the second rotating grindstone 60 have a diameter of 1
When using 50 mm, their rotation speed is 15
00 rpm, and the conveying speed of the plate-shaped metal member W is, for example, 50 cm/sec.

Since each of the first rotary whetstone 50, the second rotary whetstone 60, and the conveyor 70 can be elastically dominant in the vertical direction, the size of the gap G at the time of setting is determined by the plate metal member. WI7) If set slightly smaller than the thickness, as shown in FIG. 4, the center level L1 of the gap G and the center level L2 in the thickness direction of the plate-shaped metal member W at the time of setting
Even if there is a slight difference d between the two, the plate metal member W is pinched between the first grindstone 5G and the second grindstone 60 during the actual polishing process. According to
First rotating grindstone 50, second rotating grindstone 60, and conveyor 70
The king of the two is shifted by a small amount to reach equilibrium, and therefore the pressure of the first rotating grindstone 50 on one surface of the plate-shaped metal member W and the pressure of the second rotating grindstone 60 on the other surface become equal. As a result, it is possible to simultaneously polish one side and the other side of the plate-shaped metal member W using the first rotating grindstone 50 and the second rotating grindstone 60, respectively, and to make the finished state of each side the same. . Here, the size of the gap G at the time of setting is about 1.5 mm when the thickness of the plate-shaped metal member W is 2 mm.

FIG. 5 is an explanatory diagram showing an outline of the configuration of main parts in another embodiment of the present invention.

In this example, a first dresser 81 and a second dresser 82 are further provided in the example of FIG. That is, a third threaded portion 23 having a pitch twice that of the first threaded portion 21 in the forward thread direction is formed in a portion further above the first threaded portion 21 of the rotating shaft 20. The base of a dresser arm 83 is screwed into the third threaded portion 23, and the first dresser 81 is provided at the tip thereof. This first dresser 81 is supported so as to be movable only in the vertical direction. In addition, the rotating shaft 20
A fourth threaded portion 24 having a pitch twice that of the second threaded portion 22 in the forward thread direction is formed in a portion further below the second threaded portion 22. A base portion of a dresser arm 84 is screwed to 24, and a second dresser 82 is provided at the tip thereof. This second dresser 82 is supported so as to be movable only in the vertical direction.

As shown in FIG. 6, the first dresser arm 81 is prevented from rotating together with the rotating shaft 20 by a rotation stop plate 85 fixed to the frame 10, and is moved in the vertical direction. It is now possible to do so. In the figure, 87 is a spring for relieving excessive pressure applied to the first dresser 81, and 38 is a long hole extending in the vertical direction provided in the first movable base plate. Second
The dresser 82 can also be moved vertically by the same mechanism as the first dresser 81.

In the device of this embodiment, the third threaded part 23 and the fourth threaded part 24 have twice the thread pitch in the forward thread direction as the first threaded part 21 and the second threaded part 22, respectively. During the dressing process, the dresser is set at the processing position, and the first movable substrate 31 and the second movable substrate 41 are moved close to each other by the rotary shaft 20 while rotating the first rotary whetstone 50 and the second rotary whetstone 60. When the first dresser 81 and the second dresser 82 are rotated in the direction shown in FIG.

Therefore, as shown in FIG. 7, if the position of the first dresser 81 is set at the top of the outer peripheral surface of the first rotary grindstone 50 whose radius is R at the start of the dressing process, the descending distance is is twice that of the first rotational drive shaft 34, so
Even when the first rotary whetstone 50 is dressed and becomes circular with radius r, the lowermost part of the outer peripheral surface of the first rotary whetstone 50 remains at the same polishing level L3. That is, the descending distance of the first rotary drive shaft 34 is (R
-r), the cutting edge level of the first dresser 81 moves downward by 2x(R-r), and as a result, the top of the outer peripheral surface of the first rotary grindstone 50 is always at the first dresser 81. The same polishing level L3 is maintained while contacting the cutting edge of the blade. The above also applies to the second dresser 82.

Therefore, the first rotating grindstone 50 and the second rotating grindstone 60
0, it is possible to easily perform the dressing process on both of them at the same time and in exactly the same way, and it is also possible to immediately continue the polishing process after finishing the dressing process.In this respect, the dressing process can be performed with high efficiency. can be executed.

〔Effect of the invention〕

According to the invention of claim 1, it is possible to simultaneously polish one side and the other side of a plate-shaped metal member with a simple configuration, and moreover, the central level of the gap between the first and second rotating grindstones Even if the center level in the thickness direction of the plate-shaped metal member does not exactly match, it is possible to obtain the same finished state on one side and the other side of the plate-shaped metal member.

According to the invention of claim 2, with a simple configuration, it is possible to dress both the first rotating grindstone and the second rotating grindstone simultaneously and with high efficiency.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram showing the outline of the configuration of the main parts in an embodiment of the present invention, Fig. 2 is an explanatory diagram showing the supporting state of the first rotary drive shaft, and Fig. 3 is an explanatory drawing showing the holding state of the guide rail. FIG. 4 is an explanatory diagram showing the positional relationship between the rotary grindstone and the plate-shaped metal member, FIG. FIG. 7 is an explanatory diagram showing the holding state of the dresser arm, and FIG. 7 is an explanatory diagram showing the positional relationship between the first rotating grindstone and the first dresser. DESCRIPTION OF SYMBOLS 10... Frame 20... Rotating shaft 21... First threaded part 22... Second threaded part 23... Third threaded part 24... Fourth threaded part 26... - Shaft rotation drive motor 27... Worm mechanism 31... First movable board 32... Motor 33.
...Pillow block 34...First rotational drive shaft 3
4A... Tip 34B... Base end 35...
・Endless belt 36...L-shaped steel 37...Spring
38...Long size 39...Bold donut 41.
・Second movable board 42...motor 43
...Pillow block 44...Second rotational drive shaft 4
4A... Tip 44B... Base end 45...
Endless belt 50...First rotating grindstone 60...Second rotating grindstone 70...Transporter 7172.
...Guide rail 73, 74.75.76...Guide rail fixing member 77...Spring 78.7
9... Bolt 81... First dresser 82...
・Second dresser 83.84...Dresser arm 85...Rotation stop plate 87...Spring-
1t-2 Figure 13 Figure 7゜+5 Figure

Claims (2)

[Claims] (1) A frame, a rotating shaft provided on the frame that extends in one direction, and a first screw threaded into a first screw portion formed on the rotating shaft and supported movably in the direction in which the rotating shaft extends. a first movable substrate; a first rotary drive shaft whose intermediate portion is rotatably supported on the first movable substrate; a first disk-shaped drive shaft provided at the tip of the first rotary drive shaft; a first polishing mechanism comprising a rotary grindstone and a first rotary drive source connected to a base end of a first rotary drive shaft; a second polishing mechanism formed on the rotary shaft at a distance from the first screw portion a second movable substrate supported to be movable in the extending direction of the rotating shaft, the second movable substrate being screwed into the threaded portion of the first movable substrate in a reverse threaded relationship; on the second movable substrate; a second rotary drive shaft whose intermediate portion is rotatably supported; and a distal end of the second rotary drive shaft such that its outer circumferential surface faces the first rotary grindstone in the extending direction of the rotary shaft. a second polishing mechanism comprising a second disc-shaped rotary grindstone and a second rotary drive source connected to the base end of a second rotary drive shaft; and a plate-shaped metal member to be polished. holding the first
a conveying body that is moved to pass tangentially between the rotating whetstone and the second rotating whetstone, and the first rotating whetstone, the second rotating whetstone, and the conveying body move in the direction in which the rotating shaft extends. A surface polishing device for a plate-shaped metal member, characterized in that it can be elastically deflected. (2) A third threaded portion, which is formed at a position outward from the first threaded portion of the rotating shaft and has a pitch twice that of the first threaded portion in the forward thread direction, is attached in the direction in which the rotating shaft extends. A first dresser movably supported by the rotary shaft is screwed together with the second threaded portion formed at a position outward from the second threaded portion of the rotating shaft, and has a pitch of 2 in the forward thread direction. A second dresser supported movably in the extending direction of the rotating shaft is screwed into the fourth threaded portion, and the rotation of the rotating shaft causes the first dresser and the second dresser to be connected to each other. is the first rotating grindstone and the second
2. The surface polishing apparatus for a plate-shaped metal member according to claim 1, wherein the surface polishing apparatus for a plate-shaped metal member is moved in the same direction and twice as much as the rotary grindstone.