JPS6294261A - Grindstone correcting device - Google Patents

Abstract

PURPOSE:To ensure the dresser with easy exchange and high rigidity by providing two guide rails on a feed gear in the direction intersected to a wheel spindle, thereby making possible to adjust a space between a coping body and a diamond cut-in body. CONSTITUTION:A coping body 13 is energized so as to approach to a traverse body 6 by a coping spring 22 and is shifted on cross slide direction guide rails 7, 8 by a ball slide guide 11 while a stylus 18 is pressedly touched to a template 19. Accordingly, a diamond cut-in body 12 is shifted in the direction intersected to a wheel spring 3 so that a space between the diamond cut-in body and the coping body 13 is changed, thus the cut-in quantity of a diamond tool is obtained. Further, a traverse screw 10 is turned by the feed gear, the traverse body 6 is shifted on the traverse guide rail 4 through a slide guide 5. Therefore, the diamond cut-in body is shifted due to the shape of the template 19 by the coping body for shaping the grinstone.

Description

[Detailed description of the invention] [Purpose of the invention] "Industrial application field" The present invention relates to a grinding wheel correction device installed in a grinding machine.

"Prior Art" In a grinding machine that performs grinding using a grinding wheel, a single point diamond or a rotary diamond device is generally installed at the tip of the grinding wheel to correct, sharpen and reshape the grinding wheel, and In the case of a multi-stage or tapered object, a grinding wheel correction device incorporating a copying template of the shape is used.

Fig. 4 is a vertical cross-sectional view of a conventional example of a grinding wheel correction device.
The front view of FIG. 4 is shown in FIG. In the figure, bed 1
A traverse space 34 that serves as a guide parallel to the grinding wheel shaft 3 fixed above, a traverse body 6 that slides into the traverse space 34, and a screw feed device (not shown) provided between the traverse body 6 and the traverse space 34. is configured. Grinding wheel shaft 3 on top of traverse body 6
A cross slide 69 that slides into a guide perpendicular to the cross slide 3 has one end locked to the traverse body 6 and the other end of the
The stylus 18 fixed to the cross slide 39 presses against the template 19 fixed to the traverse space 34. The position of the cross slide 59 is determined.

The diamond par 2 slides into the cylindrical hole in the direction perpendicular to the grinding wheel shaft 6 of the cross slide 39 without rotating.
A diamond cutting screw 32 screwed into the cross slide 39 is supported by a bearing 33 fixed to the rear end of the cross slide 39 so as not to move in the axial direction, and a diamond cutting handle 31 is attached thereto.

A diamond tool 25 is fixed to the end of the diamond par 26.

"Problems to be Solved by the Invention" In FIG. 4, when the diamond cutting handle 31 is rotated, the diamond cutting screw 32 rotates, the diamond par 26 moves forward, and the diamond tool 25 changes its position each time the grinding wheel 2 is adjusted. Go out in front. Therefore, the amount of protrusion of the diamond par 26 from the cross slide 39 changes and the supporting conditions change, and when the amount of protrusion increases, chatter vibration occurs in the diamond tool 25, making it impossible to form an accurate working surface of the grindstone. If the diamond par 26 is made thicker to increase its rigidity, the cross slide 39 will also become larger, making the device larger. When using a rotary diamond type dresser, it is common to attach a rotary head to the tip of the diamond par 26, and when sharing it with a single diamond, the size is such that a rotary head can be attached and a single diamond is installed. Therefore, when it was a single diamond, it was larger than necessary.

It is an object of the present invention to solve the above-mentioned problems and to provide a grinding wheel correction device that is always supported with the same rigidity, enables good grinding wheel correction, and can be downsized even when attached to a rotary diamond type dresser. shall be.

[Structure of the invention]

"Means for Solving the Problems" The present invention provides a feeding device that feeds a grinding wheel correction tool along the grinding surface of the grinding wheel so as to cross the grinding surface, and a cutting device that makes a cut in the grinding wheel correction tool carried by the feeding device. In the grinding wheel correction device equipped with the grinding wheel correction device, the feeding device is provided with two parallel guide rails in a direction intersecting the grinding wheel axis, three slide guides are engaged with each of the guide rails, and a grinding wheel correction tool is provided. The diamond-cut body carrying the diamond-cut body is engaged with one guide rail.Inner of the three slide guides, two slide guides are engaged from the side closest to the grindstone, and three slides are engaged with the other guide rail. The internal liquid of the guide is also fixed to one slide guide on the side near the grinding wheel, and the copying body, which has a stylus that presses against the template fixed to the stationary part, is fixed to the remaining slide guides, and the copying body and the diamond notch body are connected to each other. This is a grinding wheel correction device connected so that the interval can be adjusted.

"Operation" When the grinding wheel is fed by the feeding device, the two parallel guide rails on the feeding device are fed in a direction parallel to the grinding wheel axis. When the grindstone correction tool grinds the grindstone, the stylus of the copying body follows the template, and the copying body and the diamond cutting body are connected and moved on the guide rail via the slide guide. When the diameter of the grinding wheel becomes smaller and the diamond cutting body is adjusted in a direction away from the copying body, the distance between the stylus of the copying body and the grindstone correction tool changes and cutting is performed. Regardless of the position of the diamond notch body on the guide rail, the support conditions for the grinding wheel correction tool via the slide guide by the guide rail are constant, and the main component force and feed component force of the grinding wheel correction action are under the same conditions. It is supported, and the back force is countered by the auxiliary force on the body side.

"Embodiments" Examples of the present invention will be described below with reference to the drawings. FIG. 1 is a longitudinal cross-sectional view in a direction intersecting the grindstone axis, and FIG. 2 is a plan view of FIG. 1. Two traverse guide rails 4, 4 are fixed to the bed 1, which is integrated with the component frame of the grinding machine or attached to the component frame of the grinder, in parallel to the grinding wheel shaft 6 of the grinding wheel 2, and the traverse is connected to the idle rails 4, 4. Slide guide 5 to engage
．． 5 are fixed near the four outer corners of the lower side of the traverse body 6. A traverse screw 10 rotatably supported by the bed 1 is screwed into the traverse body 6. As described above, a feeding device is configured to send the grindstone correction tool along the grinding surface of the grindstone so as to cross the surface.

Two cross-slide ball guide rails 7.8 that are perpendicular to the traverse guide rail 4 and parallel in the horizontal plane are fixed to the upper surface of the traverse body 6, and a ball slide guide that engages with the ball guide rails 7.8. 9 is fixed to the diamond notch body 12, and the ball slide guide 11 is fixed to the copying body 13.

As shown in Fig. 2, the diamond notch body 12 and the copying body 1
5 each have an L-shape, and when put together so as to fit into each other, it becomes a substantially rectangular shape. One side of the L shape of the diamond cut body 12 overlaps along the ball guide rail 7, and the -
It engages with the slide guide rail 7 via a ball slide guide 9 at position =s on the side closer to the grindstone 2 fixed to the side, and the other side of the L shape overlaps the ball guide rail 8 at right angles, It engages with the ball guide rail 8 via one ball slide guide 9 on the side closest to the grindstone 2 fixed to the side. One side of the L-shape of the copying body 13 overlaps along the ball slide rail 8, and the ball guide rail 8 engages with two ball slide guides 11 fixed to the -side, and the other side of the L-shape overlaps the ball slide rail 8. overlaps the ball guide rail 7 perpendicularly and engages with the ball guide rail 7 via one ball slide guide 11 fixed to the side.

The above ball guide rail 7.8 and diamond notch body 12
In relation to the copying body 13, three slide guides are engaged with each of the guide rails 7.8, and the grinding wheel correction work A (
Three slide guides that engage a diamond cutting body 12 carrying a diamond tool 25) to be described later with one guide rail 7? , 9. Three slide guides that engage with the two slide guides 9, 9 and the other guide rail 8 from the side near the inner grindstone 2 of 9.11? , 11. i1 is fixed to one slide guide 9 on the side closest to the grinding wheel 2, and the body 15 is fixed to follow the remaining slide guides 11, and the diamond cut body 12 and the follow body 13 are each limited to an L shape. They do not have to be two-dimensional, but may have a shape that fits into each other or a shape that allows them to approach each other.

A ball screw 15 parallel to the ball guide rail 7.8 is screwed into a ball nut 14 fixed to the diamond-cut body 12. The ball screw 15 is supported by a bearing 16 housed in the copying body 15 so as not to move in the axial direction, and is connected to the output shaft end of a pulse motor 17 fixed to the copying body 13 via a gear train.

A stylus 18 is fixed to the rear of the copying body 13 and hangs down, and the tip of the stylus 18 is in a position where it can be pressed against a template 19 fixed to the bed 1. A pipe 20 is fixed to the copying pod 1S in parallel to the ball screw 15, and a nut 21 is fixed to the rear end of the pipe 20. One end of the copying spring 22, which is a tension spring, is locked to a pin 23 fixed to the traverse body 6, and is inserted through a hole in the copying body 13 drilled in line with the pipe 20 and the pipe 20, and screwed into the nut 21. hanger 24
The other end is locked to the tip of the.

A diamond par 26 is fixed to the tip of the upper surface of the diamond cutting body 12, and a diamond tool 25 equipped with a diamond is fixed to the tip as a grindstone correction tool.

When making a diamond cut, the pulse motor 17 is energized. The pulse motor 17 rotates the ball screw 15 by a predetermined amount. The copying body 13 is urged to approach the traverse body 6 by the copying spring 22, and is movable on the ball guide rail 7.8 in the cross-slide direction by the ball slide guide 11.1. The end of the stylus 18 is pressed against the template 19. Therefore, since the profiling body 13 is at a constant position at each point of the traverse body 6, the diamond notch body 12 moves in the direction perpendicular to the grinding wheel shaft 6 with respect to the profiling body 13, and the diamond notch body 12 and the profiling body 15 The spacing changes, giving the depth of cut of the diamond tool 25.

When copying is performed using the template 19, when the traverse screw 10 is rotated by a correction feeding device (not shown), the traverse body 6 moves on the traverse guide rail 4 via the slide guide 5, so that the diamond cut body 12, The copying body 16 and other objects carried by these bodies move in the same direction. Since the stylus 18 is in pressure contact with the template 19, the profiling body 16 moves in the direction of the diamond cut via the ball slide guide 11 on the ball guide rail 7.8 in accordance with the shape of the template 19. At this time, the diamond notch body 12 is the copying body 13.
The ball guide rails 7.8 are connected to the ball guide rails 7.8 and 8.
The shape of the template 19 is transferred to the grindstone 2 by moving the upper part thereof in the diamond cutting direction via the ball slide guide 9 according to the shape of the template 19.

When moving the diamond notch body 12 and the copying body 13 as described above, both the diamond notch body 12 and the copying body 13 are connected to the two ball guide rails 7.8 on the traverse body 6.
are combined by three ball guide bearings 9 and 11, respectively. These three ball guide bearings 9 and 11 support the main component force and the feed component force applied to the diamond tool 25, and the lateral, front-back, and vertical directions based on the three-component force obtained by adding the back force to these two-component forces. It supports the moment of Further, the traverse body 6 and the copying body 16 are adjusted to be pulled together by a copying spring 22 so that the stylus 1a is always in contact with the template 19, and the tension of the copying spring 22 is also adjusted depending on the situation. The structure is such that adjustments can be made by rotating the hanger 24 from the outside.

In the embodiment, the traverse guide rails 4, 4 and the ball guide rails 7, 8 are arranged in a horizontal plane, but the plane on which these guide rails are arranged may be a vertical plane, a slope, etc.

〔Effect of the invention〕

The present invention provides a grinding wheel correction device comprising a feeding device for feeding a grinding wheel correction tool along the grinding working surface of the grinding wheel so as to cross the working surface of the grinding wheel, and a device for making a cut in the grinding wheel correction tool carried by the feeding device. The feeding device is provided with two parallel guide rails in a direction intersecting the grinding wheel axis, three slide guides are engaged with each of the guide rails, and one diamond cutting body carrying a grinding wheel correction tool is provided. Of the three slide guides that engage with the guide rail, the two slide guides closest to the whetstone, and the one closest to the whetstone of the three slide guides that engage with the other guide rail. A grinding wheel correction device in which a copying body is fixed to a slide guide, a copying body is provided with a stylus that is pressed into contact with a template fixed to a stationary part, and a copying body is fixed to the remaining slide guide, and the copying body and the diamond notch body are connected so that the interval can be adjusted. Therefore, (1) in the present invention, the diamond notch body on which the diamond bar rests moves forward (because of its structure, the rigidity is always constant even when the diamond moves forward, and vibrations that are likely to occur from this point There is no occurrence of

(2) In the present invention, since the diamond bar is placed on the diamond cut body, it is possible to attach a large diamond bar. Therefore, the dresser can be made highly rigid despite its small size.

(3) Since the present invention has a structure in which the diamond bur is placed on the diamond notch body, simply remove the diamond bur and place the rotary head on the diamond notch body, and the size of the dresser can be the same as when using a single diamond. . Furthermore, since the single diamond and the rotary diamond can be exchanged externally, the exchange is easy.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional view of an embodiment of the present invention, Fig. 2 is a plan view of Fig. 1, Fig. 3 is a front view of Fig. 1, Fig. 4 is a longitudinal sectional view of a conventional example, and Fig. 5. is a front view of FIG. 4. 1... Bed 2... Grindstone 3... Grinding wheel shaft 4... Traverse guide rail 5... Slide guide 6... Traverse body 7, 8... Ball guide rail 9...
Ball slide guide 10... Traverse screw 11... Ball slide guide 12... Diamond notch body 13... Copying body 14... Ball nut 1
5... Ball screw 16... Bearing 17... Pulse motor 18... Stylus 19... Template 20...
Pipe 21... Nut 22... Copying spring 23
・[Corporation] Pin 24...Hanger 25...Diamond tool 26...Diamond par 31...Diamond cut handle 62...Diamond cut screw 53...Bearing 3
4-・Traver space 39・・Cross slide.

Claims (1)

[Claims] 1. A grinding wheel correction device comprising a feeding device that feeds the grinding wheel correction tool along the grinding working surface of the grinding wheel so as to cross the working surface of the grinding wheel, and a device that makes a cut to the grinding wheel correction tool carried by the feeding device. The feeding device is equipped with two parallel guide rails in the direction intersecting the grinding wheel axis, three slide guides are engaged with each of the guide rails, and one diamond cutting body carrying the grinding wheel correction tool is connected to the feeding device. Two slide guides from the side closest to the whetstone of the three slide guides that engage with the guide rail, and one of the three slide guides closest to the whetstone that engages with the other guide rail. A grinding wheel correction device in which a copying body is fixed to a slide guide and has a stylus that presses against a template fixed to an immovable part, and a copying body is fixed to the remaining slide guide, and the copying body and diamond notch body are connected so that the interval can be adjusted.