JPH11151675A - Grinder surface plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grinder surface plate having a structure which enables speedy and easy mounting and removal of a solid grinding wheel on/from a surface plate. SOLUTION: This grinder surface plate is provided with a surface plate 1 in which a plurality of grooves 11 opened on an outer peripheral face 1b are cut out radially and a plurality of solid grindstones 2 on which a mounting piece 3 having a projecting part 31 having the same cross sectional shape as the groove 11 is firmly fixed, and has a structure in which a plurality of solid grindstones 2 attached on the surface plate 1 by sliding and inserting the projecting part 31 into the groove 11 from an outside opening of the groove 11 are fixed using a tightening tool 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grinder surface plate applied to a grinder for grinding or polishing a work.

[0002]

2. Description of the Related Art FIG. 15 is a perspective view showing an example of a conventional grinder surface plate. As shown in FIG. 15, this grinder surface plate has a configuration in which a plurality of fan-shaped fixed grindstones 120 are mounted on a surface plate 100 via mounting pieces 110. FIG. 16 is an exploded perspective view showing an attached state of a conventional grinder surface plate. As shown in FIG. 16, a platen 100 of the conventional grinder platen has a pair of female screw holes 10.
A pair of holes 111, 111 and holes 121, 121 corresponding to the female screw holes 101, 101 are also formed in each mounting piece 110 and the fixed grindstone 120. Thereby, the female screw hole 101 and the hole 111,
The fixed grindstone 120 is applied to the surface plate 100 via the mounting piece 110 so that
130 is inserted into the holes 121, 121 of the fixed grindstone 120, and penetrated through the holes 111, 111 of the mounting piece 110.
By screwing into the female screw holes 101, 101 of the
The two fixed whetstones 120 are fixed to the surface plate 100. And
The remaining fixed grindstone 120 was similarly fixed on the surface plate 100 to form the grinder surface plate shown in FIG.

[0003]

However, the above-mentioned conventional grinder surface plate has the following problems. First,
When the fixed whetstone 120 is attached to the surface plate 100, the female screw hole 101 is aligned with the holes 111 and 121, and then the male screw 1
Since the fixed grindstone 120 cannot be attached to the surface plate 100 unless the step of inserting the 30 into the hole 121 and fixing it with screws is performed, the attaching operation is very complicated. In addition, since a large number of fixed grindstones 120 must be attached to the surface plate 100, it takes a lot of trouble and a long time before assembling the grinder surface plate. Also, in the work of removing the fixed grindstone 120, the male screw 130 must be removed with a screwdriver or the like, which is troublesome.

[0004] Before the fixed whetstone 120 is attached to the surface plate 100 and used, it is necessary to put the fixed whetstone 120 in a water tank or the like so that water is sufficiently contained therein. For this reason, when attaching the fixed grindstone 120, water is dripped from the fixed grindstone 120 and the work becomes difficult. In the case of a single-side polishing type grinder, since the fixed whetstone 120 is attached to the upper surface of the lower stool 100,
Although not affected so much, in the case of a double-side polishing grinder, the fixed whetstone 120 is not only placed on the lower platen 100 but also on the upper platen 100.
Must be attached, so that dripping of water from the fixed whetstone 120 hits the worker's face and adversely affects the work. That is, since the worker must put his / her face under the upper platen 100 suspended above and look up at the upper platen 100, the fixed whetstone 120 must be attached to the upper platen 100. Water from 120 spills on the face, making work very difficult. On the other hand, when the fixed grindstone 120 is removed from the upper surface plate 100 after the polishing operation, the polishing liquid or the like is applied to the operator, and the removal operation is difficult.

Further, holes 121 and 12 are formed in the fixed grindstone 120.
1 is drilled so that the edge of the workpiece is
There is a risk of damage due to hitting on 1,121. For this reason,
In the conventional grinder surface plate, as shown in FIG.
It was necessary to flatten the surface of No. 20, and the work required a lot of labor and time.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a grinder surface plate having a structure capable of quickly and easily mounting and removing a solid grindstone on and from a surface plate. It is assumed that.

[0007]

In order to solve the above-mentioned problems, a first aspect of the present invention is a mounting piece in which a plurality of substantially fan-shaped solid grinding wheels are fixed to one surface of each solid grinding stone on one surface of a surface plate. In the grinder surface plate which is provided through, each mounting piece has a rail-shaped convex portion whose cross section is constricted on the base side,
In addition, the rail-shaped convex portion is fixed to one surface of the solid grindstone so as to face the radial direction of the solid grindstone, and the platen has a cross-sectional shape substantially matching the cross-sectional shape of the rail-shaped convex portion, and Attaching to the surface plate by inserting the rail-shaped convex part of the mounting piece by sliding it from the outside opening end of the straight-shaped concave part of the grinding wheel mounting part In addition, a plurality of solid whetstones are fixed with a fixture that can be fixed and released. With this configuration, the solid grindstone can be removed from the platen by releasing the fixing action of the fixture and pulling out the solid grindstone along the straight concave portion to the outside of the platen. In addition, the attachment of the solid whetstone to the surface plate is achieved by sliding the rail-shaped convex portion from the outer opening end of the straight concave portion, inserting the rail-shaped convex portion, and then fixing with a fixture.

By the way, the whetstone mounting portion may be any as long as a solid whetstone can be mounted via a mounting piece.
It does not need to be separate from the surface plate. Therefore, claim 2
The invention according to claim 1, wherein the grinder surface plate according to claim 1,
The whetstone mounting portion was formed on the surface plate itself, and the straight concave portion of the whetstone mounting portion was a straight groove that opened on the outer peripheral surface of the surface plate. Further, the shape of the mounting piece may be a shape which can be slidably inserted into a straight groove of the fixed mounting portion. As an example, the invention according to claim 3 is the mounting method according to claim 2, wherein The piece is formed by a long main body fixed to a solid grindstone and a rail-shaped protrusion protruding in the length direction of the main body. Further, as another example, the invention according to claim 4 is the grinder surface plate according to claim 2, wherein the mounting piece is fixed to the solid grindstone so as to substantially coincide with the solid whetstone; It is configured to be formed with a rail-shaped convex portion protruding in the radial direction.

[0009] The grinding wheel mounting portion is only required to be capable of mounting a solid grinding wheel via a mounting piece, and may be separate from the surface plate. Therefore, the invention of claim 5 is
The grinder platen according to claim 1, wherein the grindstone mounting portion is formed of a plate fixed to the platen, and a straight concave portion is formed on the surface of the plate. Here, the shape of the plate is arbitrary, and as an example, the invention of claim 6 has a configuration in which the plate is formed of an elongated member in the grinder platen according to claim 5. further,
As another example, the invention according to claim 7 is the grinder surface plate according to claim 5, wherein the mounting piece has a substantially fan-shaped main body portion substantially fixed to the solid grindstone and fixed thereto, and a radial direction of the main body portion. And a rail-shaped protrusion protruding from the main body, and the plate body is formed in a substantially sector shape substantially coinciding with the main body.

The cross-sectional shape of the rail-shaped convex portion may be any shape as long as it is constricted at its base.
An eighth aspect of the present invention is the grinder base according to any one of the first to seventh aspects, wherein a cross section of the rail-shaped convex portion is formed in a substantially trapezoidal shape, a substantially T shape, or a substantially circular shape. is there.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) FIG. 1 is a perspective view showing a partially cutaway grinder surface plate according to a first embodiment of the present invention. The grinder surface plate has a structure in which eight solid whetstones 2 having a substantially fan shape are provided on the surface of the surface plate 1 via mounting pieces 3 fixed to the respective solid whetstones 2.

FIG. 2 is a perspective view showing the solid whetstone 2.
FIG. 3 is a front view, with the polished surface 20 facing downward. As shown in FIG. 2, the solid grindstone 2 has a substantially fan shape in plan view, and has the mounting piece 3 on a surface 21 opposite to the polishing surface 20. The mounting piece 3 is composed of an elongated main body 30 and a rail-shaped projection 31 protruding from the main body 30, and is attached to the surface 21 of the solid grindstone 2 in a state where the main body 30 faces in the radial direction. It is fixed with an adhesive. As shown in FIG. 3, the convex portion 31 has a conical inverted trapezoidal cross section at the base portion.
As shown in the figure, the protruding portion is provided along the length direction of the main body 30.

On the other hand, as shown in FIG. 1, the surface plate 1 has a whetstone mounting portion 10 into which the projection 31 of the mounting piece 3 can be inserted. FIG. 4 is a perspective view of the surface plate 1. As shown in FIG. 4, a tubular stopper 12 having a length substantially equal to the thickness of the solid whetstone 2 is inserted into a center hole 1 a of the surface plate 1. Eight grinding stone mounting parts 10 formed by processing are recessed. In particular,
Each grindstone mounting portion 10 is formed by a straight groove 11 formed by cutting the surface of the surface plate 1 in the radial direction, that is, from the stopper 12 side toward the outer peripheral surface 1b of the surface plate 1. Also, this groove 11
An opening is formed on the inner peripheral surface and the outer peripheral surface 1b that define the center hole 1a, and the cross-sectional shape thereof substantially matches the cross-sectional shape of the projection 31 of the mounting piece 3.

FIG. 5 is a sectional view taken along line AA of FIG.
FIG. 6 is a cross-sectional view showing a state in which the solid whetstone 2 is attached to the surface plate 1. The eight solid whetstones 2 as described above are shown in FIGS.
As shown in the figure, the projections 31 of the mounting pieces 3 are fitted on the surface of the surface plate 1 in a state of being fitted into the grooves 11 of the surface plate 1, and the outer peripheral surface has a ring shape as a fixture. The tightening tool 4 is wound to prevent the solid grindstone 2 from jumping outward due to centrifugal force when the grinder platen rotates. As shown in FIGS. 1 and 5, the fastener 4 includes a band 40, a bolt 41 inserted into holes at both ends of the band 40, and a bolt 41.
And a nut 42 fitted on the tip end side of the band member. The band member 40 is tightened by tightening the bolt 41, and the band member 40 is expanded by loosening the bolt 41.

Next, the operation of attaching and detaching the solid whetstone 2 to and from the surface plate 1 in the grinder surface plate of this embodiment will be described. FIG. 7 is a cross-sectional view for explaining the mounting and removing operations of the solid whetstone 2. First, when the solid grindstone 2 is attached to the lower surface plate 1-1 in FIG. 7, the solid grindstone 2 shown in FIG. 2 is turned downward, and the end of the convex portion 31 of the attachment piece 3 is opened to the outer peripheral surface 1 b of the groove 11. Fit into the solid whetstone 2
To the center of the surface plate 1. Then, the solid whetstone 2 becomes the groove 1
1, slides toward the center of the platen 1 and hits the stopper 12. Similarly, the remaining solid whetstone 2
1 and 5, the fastener 4 is wound around the outer peripheral surface of the eight solid grindstones 2 and tightened, as shown in FIGS. I do.

In the case of a grinder of a double-side polishing type, as shown in FIG.
-2, the solid grindstone 2 is attached. In this case, the same operation as described above is sufficient. That is, the solid whetstone 2 in the state shown in FIG. 2 is brought to the outer peripheral surface 1 b of the surface plate 1, the end of the convex portion 31 of the mounting piece 3 is fitted to the opening end of the outer peripheral surface 1 b of the groove 11, and the stopper 12 is hit. After sliding to the center portion side of the platen 1, the fastener 4 is tightened to the outer peripheral surface of the eight solid whetstones 2 inserted into the grooves 11.

Thus, the upper platen 1-2 is replaced with the lower platen 1-1.
Side while pressing the work (not shown) placed on the solid whetstone 2 of the surface plate 1-1 with the upper surface plate 1-2.
By rotating the lower stools 1-1 and 1-2 in opposite directions, both surfaces of the work can be simultaneously ground. In addition, the centrifugal force acts on the solid grindstone 2 at the time of rotation of each platen 1, but the solid grindstone 2 does not jump out because the fastener 4 is tightened to the eight outer peripheral surfaces.

Then, after the grinding operation, when the worn solid whetstone 2 is to be removed from the upper and lower stools 1-1 and 1-2, the fasteners 4 are loosened and removed, and each solid whetstone 2 is lifted up.
Pull out along the groove 11 of the lower surface plate 1-1, 1-2.

As described above, according to the grinder surface plate of this embodiment, the solid whetstone 2 is simply inserted into the groove 11 of the surface plate 1 and the fastener 4 is wound around the outer peripheral surface of the solid whetstone 2. 2 is completed, and conversely, by simply removing the fastener 4 and pulling out the solid grindstone 2 from the groove 11 of the surface plate 1, the work of removing the solid grindstone 2 is completed. The installation and removal of the solid grindstone 2 can be performed quickly and easily without requiring complicated work such as outside. In addition, since there is no bolt hole on the surface of the solid whetstone 2, it is possible to eliminate the troublesome work of creating a grindstone plug 131 and filling the hole in the hole as in a conventional grinder surface plate, thereby speeding up the work. Is promoted. Further, as shown in FIG. 7, when the solid grindstone 2 is attached to and detached from the upper surface plate 1-2, liquid W such as water droplets and polishing liquid falls from the solid grindstone 2. Since the face had to be put under the surface plate 1-2 and the solid whetstone 2 had to be bolted and unbolted facing upward, the liquid W came into contact with the face. However, with the grinder surface plate of this embodiment, the worker can attach and remove the solid whetstone 2 away from the upper surface plate 1-2, so that the work can be performed comfortably and easily. Further, since the whetstone mounting portion 10 is formed on the surface plate 1 itself, the number of parts can be reduced. Furthermore, since the mounting piece 3 is formed in a long shape, the mounting piece 3 can be easily formed.

(Second Embodiment) FIG. 8 is a perspective view showing a solid grindstone applied to a grinder surface plate according to a second embodiment of the present invention. FIG. It is sectional drawing which shows the attached state. In the grinder surface plate of this embodiment, the shape of the main body of the mounting piece 3 is different from that of the main body 30 of the first embodiment. As shown in FIG. 6, in the first embodiment, since the width of the main body 30 is smaller than the width of the solid grindstone 2, both sides of the solid grindstone 2 protruding from the main body 30 are used during the grinding operation. It cannot be said that it does not break. Therefore, in this embodiment, as shown in FIG. 8, the main body 30 ′ of the mounting piece 3 is formed in a shape that matches the fan-shaped surface 21 of the solid grindstone 2. This allows
As shown in FIG. 9, when the solid grindstone 2 is attached to the surface plate 1, the solid grindstone 2 does not protrude, so that the solid grindstone 2 does not crack during the grinding operation, and the strength of the solid grindstone 2 is improved. I do. The other configuration, operation, and effect are the same as those of the first embodiment, and the description thereof is omitted.

(Third Embodiment) FIG. 10 is a perspective view showing a surface plate 1 applied to a grinder surface plate according to a third embodiment of the present invention, and FIG. It is sectional drawing which shows the state attached to the board 1. The grinder surface plate of this embodiment differs from the grindstone mounting portions 10 of the first and second embodiments in the configuration of the grindstone mounting portion. That is,
As shown in FIG. 10, a grindstone mounting portion 10 'was formed using a long plate 13 having a straight groove 11 opened at both ends. Specifically, as shown in FIG. 11, a plurality of bolt holes 14 are formed in the groove 11 of the plate 13, and these bolt holes 14 correspond to female screw holes 1 c threaded on the surface of the surface plate 1. In this state, the plate body 13 is fixed to the surface of the surface plate 1 by screwing the bolt 15 into the female screw hole 1c. Thereby, by inserting the convex part 31 of the attachment piece 3 fixed to the solid grindstone 2 shown in FIG. 2 or FIG. 8 into the groove 11 of the plate 13,
The solid whetstone 2 can be mounted on the whetstone mounting part 10 '. Therefore, even in the surface plate 1 in which it is difficult to cut the groove 11, the grindstone mounting portion can be provided, which is very convenient.
The other configuration, operation, and effect are the same as those of the first and second embodiments, and thus description thereof is omitted.

(Fourth Embodiment) FIG. 12 is a perspective view showing a surface plate 1 applied to a grinder surface plate according to a fourth embodiment of the present invention, and FIG. It is sectional drawing which shows the state attached to the board 1. The grinder surface plate of this embodiment is different from the plate body 13 of the third embodiment in the shape of the plate body of the grindstone mounting portion 10 '. That is, the plate 13 ′ was formed in a shape corresponding to the fan-shaped surface 21 of the solid grindstone 2. Thus, when the solid whetstone 2 shown in FIG. 8 is mounted on the whetstone mounting portion 10 ', the plate 13' and the main body 30 'of the mounting piece 3 come into complete contact as shown in FIG. The strength of the solid whetstone 2 during operation is further improved. The other configuration, operation, and effect are the same as those of the third embodiment, and thus description thereof is omitted.

The present invention is not limited to the above embodiment, and various modifications and changes can be made within the scope of the invention. FIG. 14 shows the projection 3 of the mounting piece 3.
It is sectional drawing which shows the modification of 1. In the above embodiment, the cross section of the convex portion 31 is set to an inverted trapezoidal shape, but the convex portion may have a constricted cross section at the base. Therefore, the convex portion 3 having a T-shaped cross section as shown in FIG.
1 'or a convex portion 31 "having a substantially circular cross section as shown in FIG. 14B can also be applied.

[0024]

As described above in detail, according to the grinder platen according to the first aspect of the present invention, the rail-shaped convex portion is slid from the outer opening end of the straight-shaped concave portion and inserted, and then fixed by the fixture. To remove the solid whetstone simply by releasing the fixing action of the fixture and pulling the solid whetstone to the outside of the surface plate along the straight recess. As a result, complicated work such as tightening and removing bolts is not required, and as a result, the excellent effect that the work of attaching and removing the solid whetstone to and from the surface plate can be performed quickly and easily is achieved. is there. In addition, since it is not necessary to provide bolt holes on the surface of the solid whetstone, it is possible to omit the troublesome work of creating and filling a hole in a whetstone plug as in a conventional grinder surface plate, which speeds up the work. Is promoted.
In addition, in the double-side polishing grinder, the worker can attach and remove the solid whetstone away from the upper surface plate, so that water droplets and polishing liquid from the solid whetstone may be removed from the face of the worker during the work. As a result, work can be performed comfortably and easily.

In the grinder surface plate according to the second aspect of the present invention, the number of components can be reduced because the grinding wheel mounting portion is formed on the surface plate itself. Furthermore, the grinder surface plate according to the invention of claim 3 is characterized in that the mounting piece is formed by a long main body fixed to a solid grindstone and a rail-shaped protrusion protruding in the length direction of the main body. Thus, since the shape is simple, the mounting piece can be easily formed. Furthermore, in the grinder surface plate according to the fourth aspect of the present invention, since the main body of the mounting piece is made substantially coincident with the solid grindstone, the strength of the solid grindstone can be improved.

Further, in the grinder surface plate according to the fifth aspect of the present invention, since the grindstone mounting portion is formed separately from the surface plate, the grindstone mounting portion can be provided even on a surface plate where it is difficult to cut a groove or the like. It is convenient. According to a sixth aspect of the present invention, in the grinder surface plate according to the fifth aspect, since the plate is formed of a long member, the plate can be easily formed and processed. Further, in the grinder surface plate according to the invention of claim 7, since the plate body is formed in a substantially fan shape in the grinder surface plate of claim 5, the strength of the solid grindstone can be further improved.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing a grinder surface plate according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing the solid grindstone of FIG. 1;

FIG. 3 is a front view of a solid whetstone.

FIG. 4 is a perspective view of the platen shown in FIG. 1;

FIG. 5 is a sectional view taken along the line AA of FIG. 1;

FIG. 6 is a cross-sectional view showing a state in which a solid grindstone is attached to a surface plate.

FIG. 7 is a cross-sectional view for explaining an attaching and detaching operation of the solid grindstone.

FIG. 8 is a perspective view showing a solid grindstone applied to a grinder surface plate according to a second embodiment of the present invention.

9 is a cross-sectional view showing a state where the solid grindstone of FIG. 8 is attached to a surface plate.

FIG. 10 is a perspective view showing a surface plate applied to a grinder surface plate according to a third embodiment of the present invention.

11 is a sectional view showing a state in which a solid grindstone is attached to the surface plate of FIG.

FIG. 12 is a perspective view showing a surface plate applied to a grinder surface plate according to a fourth embodiment of the present invention.

13 is a cross-sectional view showing a state in which a solid grindstone is attached to the surface plate of FIG.

FIG. 14 is a cross-sectional view showing a modification of the protrusion of the mounting piece.

FIG. 15 is a perspective view showing an example of a conventional grinder surface plate.

FIG. 16 is an exploded perspective view showing a mounted state of a conventional grinder surface plate.

FIG. 17 is a cross-sectional view showing a state in which holes of a solid grinding stone are filled with a grinding stone plug.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Surface plate, 2 ... Solid whetstone, 3 ... Mounting piece, 4 ... Fastener, 10 ... Whetstone mounting part, 11 ... Groove, 12 ... Stopper, 30 ... Body part, 31 ... Convex part.

Claims (8)

[Claims] 1. A grinder surface plate in which a plurality of substantially fan-shaped solid grindstones are provided on one surface of a surface plate via mounting pieces fixed to one surface of each solid whetstone, wherein each of the mounting pieces has a cross-section. Has a rail-shaped convex portion of a constricted shape on the base side, and is fixed to the one surface of the solid grindstone so that the rail-shaped convex portion faces the radial direction of the solid grindstone. Has a whetstone mounting portion substantially matching the cross-sectional shape of the rail-shaped convex portion and having a straight-shaped concave portion facing the radial direction of the surface plate. The rail-shaped convex portion of the mounting piece is connected to the whetstone mounting portion. A plurality of solid whetstones attached to the surface plate by being slid and inserted from the outer opening ends of the straight-shaped concave portions, and fixed with a fixing tool capable of being fixedly released. 2. The grinder surface plate according to claim 1, wherein the whetstone mounting portion is formed on the surface plate itself, and a straight-shaped concave portion of the whetstone mounting portion opens on an outer peripheral surface of the surface plate. A grinder surface plate, which is a straight groove. 3. The grinder surface plate according to claim 2, wherein the mounting piece is fixed to the solid grindstone, and a long main body portion is provided. A grinder surface plate formed with a convex portion. 4. The grinder surface plate according to claim 2, wherein the mounting piece has a substantially fan-shaped main body portion substantially fixed to the solid grindstone and fixed thereto, and the mounting piece protrudes in a radial direction of the main body portion. A grinder surface plate formed with a rail-shaped convex portion. 5. The grinder surface plate according to claim 1, wherein the whetstone mounting portion is formed of a plate fixed to the surface plate, and the straight recess is formed on a surface of the plate. A grinder surface plate characterized by the following. 6. The grinder surface plate according to claim 5, wherein the plate is formed of an elongated member. 7. The grinder surface plate according to claim 5, wherein the mounting piece is substantially a fan-shaped main body fixed to the solid whetstone so as to substantially coincide with the solid whetstone, and the mounting piece protrudes in a radial direction of the main body. A grinder surface plate formed by rail-shaped protrusions, and wherein the plate is formed in a substantially fan shape substantially corresponding to the main body. 8. The grinder surface plate according to claim 1, wherein a cross section of the rail-shaped convex portion is formed in a substantially trapezoidal shape, a substantially T shape, or a substantially circular shape. A characteristic grinder surface plate.