JP2005144600A - Onboard measuring device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an onboard measuring device capable of measuring a horizontal directional and vertical directional dimension of a processing object part of a workpiece by grinding, capable of coping with processing from both the horizontal and vertical directions of the processing object part of the workpiece, having a processing means of a processing machine and the onboard measuring device such as grinding in a near position, and preventing the deterioration in workability when measuring the dimension while performing processing such as grinding. <P>SOLUTION: This measuring device of the processing object part Wa of the workpiece W, is arranged in a side part of the processing means of the processing machine so as to be freely movable to a measuring position and a retreat position by longitudinally moving, and to be vertically freely movable in the measuring position. An expanding means 9 is coaxially installed with a photographing means 8 of the processing object part Wa. One has a prism 10 downward and expands the processing object part Wa in the vertical direction of the workpiece W, and the other expands the processing object part Wa in the horizontal direction of the workpiece W. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an apparatus for measuring a workpiece that is mounted on a machine such as a grinding machine and is ground.

  2. Description of the Related Art Conventionally, in a grinding machine or the like, there is a need for a measuring device for processing to a final target dimension while measuring the dimension of a processed part of a workpiece during the processing. However, the processing machine and the measuring device are installed completely separately, and in order to measure the dimension of the workpiece part of the workpiece with the measuring device during processing, the workpiece must be removed from the table of the processing machine. However, when measurement is completed and machining is required again, the workpiece must be mounted on the table of the processing machine again. It was. Further, this re-attachment takes time, and there is a problem that work efficiency is deteriorated.

  Therefore, as shown in Fig. 8, on-machine measurement that measures the dimensions of the workpiece without removing it from the table during machining of the workpiece, and eliminates errors due to detachment and attachment, allowing high-precision machining. A grinding machine with an apparatus has been invented.

This grinding machine is mounted on a table 32 to which an object to be ground 31 is attached, a grindstone 33, a moving means 34 for moving the table 32 relatively horizontally with respect to the grindstone 33, and the table 32. Measuring means 36 including a tool microscope 35 for measuring the horizontal dimension of the portion 31a to be ground on the workpiece 31 and the moving means during grinding according to the dimension of the portion 31a to be ground measured by the measuring means 36 It is assumed that a control means (not shown) for controlling 34 is provided (Patent Document 1).
Japanese Patent Laid-Open No. 6-15567 (2nd page, FIG. 2)

  However, the on-machine measuring device provided in the conventional grinding machine can measure only the horizontal dimension of the portion to be ground 31a of the workpiece 31 mounted on the table 32, and the workpiece to be ground. The vertical dimension of the portion 31a to be ground 31 cannot be measured, and there is a problem that it cannot be handled when the workpiece 31 is cut from both the horizontal and vertical directions.

  Further, since the on-machine measuring device provided in the conventional grinding machine is provided at a position away from the grindstone 33 as the grinding means as shown in FIG. When the grinding is performed with a grinding machine while measuring the dimension of the portion 31a to be ground with the on-machine measuring device with the on-machine measuring device, there is a problem that workability is deteriorated.

  Accordingly, the present invention solves the problems of the on-machine measuring device provided in the conventional grinding machine and measures the horizontal and vertical dimensions of the workpiece part of the workpiece by grinding or the like. It can handle both horizontal and vertical machining of the workpiece part, and it is equipped with processing means for processing machines such as grinding and on-machine measuring devices at close positions. The purpose of the present invention is to provide an on-machine measuring device that does not deteriorate the workability when measuring dimensions while processing such as grinding.

  For this reason, the on-machine measuring device of the present invention can be moved to the measurement position and the retreat position by moving back and forth on the side of the processing means of the processing machine, and the workpiece W provided to be movable up and down at the measurement position. Measuring device Wa of the processing portion Wa, and an enlargement means 9 attached on the same axis as the photographing means 8 of the processing portion Wa, one of which is provided with a prism 10 on the lower side in the vertical direction of the work W. The workpiece portion Wa is enlarged, and the other is to enlarge the workpiece portion Wa in the horizontal direction of the workpiece W.

  And in the on-machine measuring device of this invention, the said expansion means 9 is attached to the revolver 11, respectively, the expansion of the workpiece part Wa of the up-down direction of the workpiece W, and the workpiece part of the workpiece W in the horizontal direction Wa enlargement can be switched freely.

  Further, in the on-machine measuring device of the present invention, the prism 10 can be finely adjusted in the vertical direction and the horizontal direction.

  Since the on-machine measuring device according to the present invention is configured as described above, it can measure the horizontal and vertical dimensions of the processed portion of the workpiece by grinding or the like. The machined part can be processed from both the horizontal and vertical directions, and the processing means of the processing machine, such as grinding, and the on-machine measuring device are provided close to each other. However, the workability in measuring dimensions was not deteriorated.

  The best mode for carrying out the on-machine measuring device of the present invention will be described below in detail with reference to the drawings.

  1 and 2 show an embodiment in which the on-machine measuring device of the present invention is provided in a grinding machine. The grinding machine is provided with a Y table 2 that is movable in the front-rear direction in FIG. 1 on a machine base 1, and an X table 3 that is movable in the left-right direction in FIG. Is provided. Further, a workpiece W is detachably attached to the upper surface of the X table 3. A grinding machine 4 as a processing means is provided on the rear side of the machine base 1. The grinding machine 4 is provided with a grindstone head 5 that faces the workpiece W from above and is movable in the vertical direction in FIG. The grindstone head 5 is provided with a disk-shaped grindstone 6 that is rotationally driven.

  The measuring device 7 of the workpiece Wa of the workpiece W that is movable to the measurement position and the retreat position by moving back and forth in FIG. Is provided. This measuring device 7 has an enlargement means 9 attached on the same axis as the photographing means 8 of the workpiece Wa, and one of them has a prism 10 below to enlarge the workpiece Wa in the vertical direction of the workpiece W. Assuming that the other is to enlarge the horizontal workpiece portion Wa of the workpiece W, each is attached to the revolver 11, and the workpiece W in the vertical direction of the workpiece W is enlarged, and the workpiece W The horizontal enlargement of the work portion Wa can be switched.

  The measuring device 7 moves forward and backward by sliding a horizontal rail 14 a provided on the side of the grinding machine 4 by a guide 13 a provided on the side of the support 12, and provided on the front of the support 12. The vertical rail 14b is moved up and down by sliding a guide 13b provided at the rear part of the measuring means 7 so as to be movable between the measurement position and the retreat position as described above.

  The photographing means 8 is a CCD camera or the like, and photographs the workpiece Wa of the workpiece W enlarged by the enlargement means 9. The image of the workpiece Wa photographed by the photographing means 8 is taken into an image processing device (not shown) and becomes an image signal, and is converted into a measured dimension by an arithmetic processing device (not shown).

  The magnifying means 9 is a microscope or the like, and two magnifying means 9 are attached to face the revolver 11, and one of the magnifying means 9 includes the prism 10 below as described above. The revolver 11 is assumed to be manually operated or automatically operated. The revolver 11 is configured to rotate obliquely, but may be configured to rotate horizontally.

  The prism 10 is attached to a fine adjustment means 15 held by the enlargement means 9 so that it can be finely adjusted in the vertical and horizontal directions. As shown in FIG. 3, the fine adjustment means 15 includes an upper and lower holding body 16 provided with holding holes 16 a that hold the upper and lower portions of the enlarging means 9, and a receiving body 18 attached to a support plate 17 of the upper and lower holding body 16. And a slide body 19 that slides the receiving body 18 in the vertical direction and a prism holder 20 attached to the lower end of the slide body 19. The prism 10 is attached to the prism holder 20 so as to be slidable in the horizontal direction, and is positioned below the magnifying means 9. The slide body 19 is adapted to slide in the vertical direction by being screwed into the screw hole 19a at the upper end and loosening or tightening the adjusting screw 21 pressed against the upper surface 18a of the receiving body 18 at the lower end. Further, the slide body 19 is fixed by a fixing screw 22 inserted into the slit 19b and screwed into the support plate 17 at an appropriate position where the slide body 19 is slid. The prism holding body 20 is formed by forming a rail 20a on which the both side guides 10a of the prism 10 slide respectively as a two-part body, and is fixed to the lower end of the slide body 19 by a fixing screw 23. An adjustment screw 24 is fixed to the rear end of the prism 10, and the adjustment screw 24 is threaded into a screw hole 19 c at the lower end of the slide body 19, and is screwed to the rear end of the adjustment screw 24. The combined adjustment knob 25 is loosened or tightened to slide in the horizontal direction. 3 is a fixing screw for fixing the upper and lower holding bodies 16 to the support plate 17, and 27 is a fixing screw for fixing the receiving body 18 to the support plate 17. is there.

  In order to measure the dimension of the workpiece W without removing it from the table during the processing of the workpiece W, the on-machine measuring device of the present invention configured as described above is performed as follows.

  First, in order to measure the vertical dimension of the workpiece Wa of the workpiece W, the X table 3 is moved to bring the workpiece W closer to the measuring device 7 and the measuring device 7 is moved from the retracted position. It slides and moves to the measurement position which is the side of the to-be-processed part Wa. In this case, since the measuring device 7 is provided on the side portion of the grinding machine 4, the X table 3 can be moved less after the workpiece portion Wa of the workpiece W is processed. Can be moved immediately. Then, the revolver 11 is rotated to switch the magnifying means 9 attached on the same axis as the photographing means 8 to the one provided with the prism 10. Next, while moving the measuring device 7 in the YZ-axis direction in FIG. 5 on the side of the processed part Wa, the processed part Wa is enlarged by the magnifying means 9, and the photographic means 8 is shown in FIG. The portions surrounded by are continuously photographed, and the entire processed portion Wa in the YZ axis direction is photographed. The captured image of the processed portion Wa is captured by the image processing apparatus to become an image signal, which is converted into a measurement dimension by the arithmetic processing apparatus. As a result, the height h of the groove, the width w of the groove, the pitch p1 of the groove, and the like, which are the processed portion Wa of the workpiece W, can be measured. The fine adjustment means 15 attached to the prism 10 is for adjusting the horizontal, vertical, front and rear, left and right, and inclination of the optical axis.

  Next, in order to measure the horizontal dimension of the workpiece portion Wa of the workpiece W, the X table 3 is moved to bring the workpiece W closer to the measuring device 7 and the measuring device 7 is retracted. And is moved to the measurement position above the workpiece Wa. In this case as well, since the measuring device 7 is provided on the side of the grinding machine 4, the movement of the X table 3 can be reduced after processing the workpiece Wa of the workpiece W. The workpiece can be moved immediately above the workpiece Wa. Then, the revolver 11 is rotated to switch the magnifying means 9 attached on the same axis as the photographing means 8 to one not provided with the prism 10. Next, while moving the measuring device 7 in the XY axis direction in FIG. 7 above the workpiece Wa, the workpiece Wa is magnified by the magnifying means 9, and the photographing means 8 causes the dash-dotted line in FIG. The portions surrounded by are continuously photographed, and the entire processed portion Wa in the XY axis directions is photographed. The captured image of the processed portion Wa is captured by the image processing apparatus to become an image signal, which is converted into a measurement dimension by the arithmetic processing apparatus. As a result, the hole diameter d, the hole pitches p2, p3, and the like, which are the workpiece Wa of the workpiece W, can be measured.

  Therefore, the on-machine measuring device according to the present invention can measure the horizontal and vertical dimensions of the processed portion of the workpiece by grinding or the like.

It is a front view of the grinding machine provided with the on-machine measuring device of this invention. It is a side view of the grinding machine provided with the on-machine measuring device of this invention. It is a disassembled perspective view of the fine adjustment means of the on-machine measuring device of this invention. It is explanatory drawing which shows the dimension measurement state of the up-down direction of the to-be-processed part of a workpiece with the on-machine measuring device of this invention. It is a partially-omitted side view of the workpiece part of the workpiece measured by the on-machine measuring device of this invention. FIG. It is explanatory drawing which shows the dimension measurement state of the horizontal direction of the to-be-processed part of a workpiece with the on-machine measuring device of this invention. It is a partially omitted plan view of a part to be processed of a workpiece to be measured by the on-machine measuring device of the present invention. FIG. It is a front view of the grinding machine provided with the conventional on-machine measuring device. It is a perspective view of the to-be-ground object measured with the conventional on-machine measuring device.

Explanation of symbols

4 Grinding machine 8 Photographing means 9 Enlarging means 10 Prism 11 Revolver

Claims (3)

  Measurement of the workpiece (Wa) of the workpiece (W) provided to be movable to the measurement position and the retreat position by moving back and forth on the side of the processing means of the processing machine and movable up and down at the measurement position. The apparatus includes an enlarging means (9) attached on the same axis as the photographing means (8) of the workpiece (Wa), one of which is provided with a prism (10) on the lower side, and the vertical direction of the workpiece W An on-machine measuring device characterized in that the processing portion (Wa) of the workpiece is enlarged and the other processing portion (Wa) in the horizontal direction of the workpiece (W) is enlarged.   The enlargement means (9) is attached to the revolver (11), respectively, and the workpiece (W) in the vertical direction of the workpiece (W) is enlarged, and the workpiece (W) in the horizontal direction ( 2. The on-machine measuring device according to claim 1, wherein the enlargement of Wa) is switchable. The on-machine measuring device according to claim 1, wherein the prism (10) can be finely adjusted in a vertical direction and a horizontal direction.

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