JPH05277902A - Work machining method and device - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] To provide a work method and a work device capable of performing a proper work operation on a work part of a work. [Structure] As a processing method, first, the position of a work piece of a workpiece is measured in a measurement process, data of this position is stored in the next process, and processing is performed based on the position data stored in the next process. . As the work processing device 1,
The proximity sensor 111 with respect to the work W is used as the moving means 1 for measurement.
Work piece W on work W moved by 20
a ′, Wb ′ ... Measuring device 100, and based on the measured position data, the processing tool 210 has a machining moving device having the same form as the measuring moving device 120 in the measuring device 100. A processing machine 200 that moves the workpieces 220 to perform processing operations on the workpieces Wa ′, Wb ′ ... Of the work W is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work processing method and a work apparatus.

[0002]

2. Description of the Related Art For example, when chamfering a cylinder port in a two-cycle engine by using a processing apparatus, a work fixed to a jig of the processing apparatus is rotated by a rotating machine mounted on the processing apparatus. Processing tools such as grindstones
The chamfering work is performed by controlling the movement based on the shape of the cylinder port and the dimensions of each part described in the manufacturing drawing of the two-cycle engine.

[0003]

By the way, the shape and size of the opening edge of the cylinder port of the engine, that is, the shape and size of the processed portion of the actually manufactured work are subject to manufacturing errors due to various factors. It is inevitable that there will be a "shift" between the shape and dimensions described in. For this reason, with the above-described conventional configuration in which the work is performed on the work part of the work on the basis of the manufacturing drawings, it is extremely difficult to perform the appropriate work work on the work part of the work. In view of the above situation, it is an object of the present invention to provide a work machining method and a machining device that can perform a proper machining operation on a workpiece part.

[0004]

In the method of machining a work according to the present invention, the position of the work piece in the work is measured in the measuring step, and the position of the work piece measured in the measuring step is measured in the next step. The above object is achieved by storing the data and processing the workpiece, which has been measured in the measuring step in the next step, based on the data of the position. Further, in the processing apparatus according to the present invention, a measuring machine that moves the measuring sensor with respect to the work by the measuring moving means to measure the position of the processed portion of the work, and the work measured by the measuring machine. A processing machine for moving a processing tool by a processing moving means having the same form as the measuring moving means in the measuring machine, based on position data in the processed portion, and performing a working operation on the processed portion of the work. The above object is achieved by providing and.

[0005]

With the above-described method and apparatus for machining a workpiece, when machining the workpiece, the actual position of the workpiece formed on the workpiece is not based on the position and shape of the workpiece described in the manufacturing drawing. Based on the position and shape of the work piece,
A processing operation is performed on the processed portion.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the drawings showing an embodiment. 1 to 3 show an example in which the work machining method and machining device according to the present invention are applied as a work machining method and a chamfering machining device when molding a cylinder port of a two-cycle engine for a motorcycle.

As is apparent from FIG. 1, the chamfering processing apparatus 1 includes a measuring machine 100 and a processing machine 200. The measuring machine 100 and the processing machine 200 are adjacent to each other on the floor. Are installed side by side.

As shown in FIGS. 1 and 2, the measuring machine 100 has a moving head 101 having a measuring probe 110, which will be described later, and a head for moving the moving head 101 in three axial directions orthogonal to each other. A feed unit 102 is provided, and the moving head 101 and the head feed unit 102 constitute a measuring moving unit 120 for moving the measuring probe 110 in a manner described later during a measuring process.

Further, a work holding means 103 for fixing the work is provided in a lower area of the moving head 101, and a work carrying means is provided in a front area (left area in the drawing) of the work holding means 103. Conveyor 104 is installed. Note that reference numerals 105a and 105b in the drawing denote a fixed cover and a movable cover that surround each element other than the conveyor 104.

The measuring probe 110 has a spindle 1 extending in the vertical direction as shown in FIGS. 4 and 5.
10A and a measuring head 110B provided at the tip (lower end) of the spindle 110A,
The measurement head 110B is provided with a proximity sensor 111 as a measurement sensor.

The proximity sensor 111 is a bracket 112.
The bracket 112 is provided so as to be movable in the left-right direction in the figure via a guide rail 113 and a slider 114 fixed to the spindle 110A.

Further, the bracket 112 is fixed to the operating rod 116a of the cylinder actuator 116 mounted on the head casing 115, and the proximity sensor 111 is formed on the head casing 115 based on the operation of the cylinder actuator 116. The workpiece is moved in the front-rear direction (left-right direction in the drawing) through the formed opening 115a so as to set a predetermined distance from the work.

Further, the measuring probe 110 is centered on the axis of the spindle 110A so as to scan the work during the measuring work by a driving means (not shown) provided in the moving head 101 of the measuring machine 100. Is rotated.

On the other hand, the processing machine 200, as shown in FIGS. 1 and 3, has a moving head 201 on which a processing tool 210 is mounted and a head feed for moving the moving head 201 in three axial directions orthogonal to each other. Unit 202
And the moving head 201 and the head feed unit 202 constitute a working moving means 220 for moving the working tool 210 in a manner described later during a working process.

The machining tool 210 mounted on the moving head 201 is a spindle 2 extending in the vertical direction.
10A and the tip of the spindle 210A (lower end in the figure)
And a grindstone 210B fixed to the moving head 201, and is driven and rotated at high speed by the drive motor (not shown) provided on the moving head 201 about the axis of the spindle 210A.

Work holding means 203 for fixing the work is provided in the lower area of the moving head 201, and the measurement is performed in the front area (left area in the drawing) of the work holding means 203. Conveyor 10 in machine 100
4 in parallel with each other, the work conveying conveyor 204
Is installed.

A tool dresser 205 for correcting or shaping the surface of the grindstone 210B of the working tool 210 is provided in the lower area of the moving head 201. Note that reference numerals 206a and 206b in the drawing denote a fixed cover and a movable cover that surround each element other than the conveyor 204.

Here, as is apparent from FIGS. 1 to 3, the above-described processing apparatus 1 is a configuration for equipping one device with the measurement probe 110 for two devices having the same basic configuration. Is added to the measuring machine 100, and a configuration for equipping the other device with the processing tool 210 is added to the measuring machine 200.

Therefore, the measuring moving means 120 in the measuring machine 100 and the processing moving means 220 in the processing machine 200 are slightly different in the structure of the moving heads 101 and 201, but their basic structures are different. Are the same as each other, and there is no difference in the operation mode.

The processing apparatus 1 is controlled by a control system 300 constructed as shown in FIG. 6, and the control system 300 includes a measuring machine side control system 310 which controls the operation of the measuring machine 100. And a processing machine side control system 320 that controls the operation of the processing machine 200.

The measuring machine side control system 310 and the processing machine side control system 320 respectively use personal computers 311 and 321 as control devices. As means for storing various data, the personal computer 311 and 321 are used. An internal memory or an external memory such as the hard disks 312 and 322 is used. In the control system 300 described above, various kinds of data are transferred between the personal computer 311 of the measuring machine side control system 310 and the personal computer 321 of the processing machine side control system 320.

On the other hand, the work (cylinder sleeve) W targeted by the processing apparatus 1 has openings Wa, Wb, Wc, Wd, W such as air supply / exhaust ports and scavenging ports as shown in FIG.
e, Wf, Wg, Wh, and notches Wi, Wj are formed, and the processing device 1 has the edge portions Wa ′, Wb ′, Wc ′, Wd ′, W at the openings and notches.
e ', Wf', Wg ', Wh', and Wi ', Wj'
Grinding is carried out using as a processed portion.

When the workpiece 1 of the workpiece W is ground by the processing apparatus 1 having the above-described structure, the workpiece W is first carried into the measuring machine 100 and the workpiece holding means 10 is provided.
The work W is set on a jig (not shown) in 3.

Next, the measurement moving means 120 is operated to lower the measurement probe 110 from the upper region of the work W, and the measurement probe 110 is inserted into the bore W'in the work W.

At the time when the proximity sensor 111 detects the upper edge of the bore W ', the descending movement of the measuring probe 110 is temporarily stopped, and the measuring probe 11 at this time is stopped.
The position of 0 is the 0 origin in the height direction of the work W.

On the other hand, the measuring probe 110 is rotated to measure the distance between the proximity sensor 111 and the bore W'in four directions perpendicular to each other as shown in FIG. 8, and the measuring probe is based on this data. The shift amounts δx and δy between the center of the bore 110 and the center of the bore W ′ are calculated, and the measuring probe 110 is horizontally moved by the above shift amounts δx and δy to measure the central axis Op of the measuring probe 110 and the bore W ′. The central axes Ow are made to coincide with each other.

The proximity sensor 11 is connected to the upper edge of the bore W '.
It is also possible to perform the above-mentioned centering of the measuring probe 110 and the bore W ′ without temporarily stopping the lowering of the measuring probe 110 at the time of detection by 1.

After setting the zero origin in the height direction of the work W and aligning the measuring probe 110 and the bore W ′ with each other, the measuring probe 110 is driven on the moving head 101. While rotating at a speed of about 60 rpm by means (not shown), the measuring moving means 120 lowers the inside of the bore W ′, and the proximity sensor 11 in the measuring probe 110.
1, the entire inner peripheral surface of the bore W'is scanned.

The proximity sensor 111 is a portion to be processed in the work W, that is, each opening and notch Wa, Wb,
Each edge portion Wa ', Wb', W in Wc ...
The specific points of c '... are measured, and these edge portions Wa', W '
Data of positions at b ', Wc' ..., That is, FIG.
Dimensions Ha, H from the upper edge of the bore W'as shown in (a)
b, Hc ... And the central angles θa, θb, θc, θd ... from the reference axis as shown in FIG.
Personal computer 3 as a control device in 0
11, and each opening and notch Wa, Wb, Wc ...
Each time it is edited and stored.

After the measurement of the position of the work with respect to the processed portion is completed, the work W is carried out from the work holding means 103 in the measuring machine 100 by the work paying-out means 106, and then the conveyor 104 and the conveyor 104. The work W transferred by 204 is carried into the processing machine 200, and the work W is set on a jig (not shown) in the work holding means 203.

The measuring machine 10 carrying out the work W
0, the workpiece to be continued immediately is carried in, and the machining operation described later is performed on the workpiece W for which the measurement process has been completed in the processing machine 200. The measured work is performed.

When the setting of the work W on the processing machine 200 is completed, the position of the work piece on the work W previously measured by the measuring machine 100 is changed from the personal computer 311 as a control device in the measuring machine side control system 310. The data is transmitted to the personal computer 321 as a control device in the processing machine side control system 320.

Then, the machining tool 210 is moved to the moving head 20.
1 is rotated at a high speed by a drive motor (not shown) provided in No. 1 and the machining moving means 220 is operated based on the data of the position of the processed portion received by the personal computer 321 of the processing machine side control system 320. Control and
The grindstone 210B of the processing tool 210 is provided with the respective edge portions W of the openings and the notches Wa, Wb, Wc ...
By moving along a ', Wb', Wc '..., the edge portions Wa', Wb ', Wc' ... are ground (deburring). Needless to say, the positioning amount of the processing tool 210 during the above-described processing operation takes into consideration the positional deviation amount during measurement.

As described above, based on the position data of the processed portion of the work W measured by the measuring machine 100,
Since the machining operation is performed on the workpiece by the processing machine 200, even if the position of the workpiece on the work W is “shifted” with respect to the manufacturing drawing, the workpiece is processed by the workpiece. Appropriate processing work can be performed.

Further, in the processing apparatus 1, the position of the work piece is measured for each work, and the work work is performed on the work piece of the work based on the position data obtained by this measurement work. Therefore, when processing multiple workpieces of the same type, even if the amount of deviation of the work piece from the manufacturing drawing varies from work piece to work piece, the work piece of each work piece can be machined accurately. It is possible to carry out various processing operations.

Further, as described above, since the measuring machine 100 and the processing machine 200 in the processing apparatus 1 are composed of devices having the same basic structure, the measuring machine 100 and the processing machine 200 are resistant to external conditions such as thermal deformation. Measuring machine 100 and processing machine 200
And will be deformed in the same tendency as each other.
Measurement work on the workpiece at 00 and the processing machine 200 described above.
An error is unlikely to occur between the machining work on the workpiece and the machining work on the workpiece.

After the processing work for the work piece of the work W is completed, the work W is delivered to the work delivering means 20.
The work W is carried out of the processing machine 200 onto the conveyor 204 by the machine 7, and the work W is transferred to the next step via the conveyor 204.

In the processing device 1 described above, the measuring machine 1
00 and one processing machine 200 each, but if the processing work time in the processing machine is shorter than the measuring work time in the measuring machine for the work, one measuring machine is used. On the other hand, by disposing two or more processing machines, a plurality of works can be efficiently and continuously processed.

In addition to the proximity sensor shown in the embodiment, various sensors such as a reflection type photoelectric sensor can be adopted as the measuring sensor provided in the measuring probe. By installing a plurality of measurement probes along the vertical direction, it is possible to scan the entire area of the inner peripheral surface of the workpiece by only rotating operation without vertically moving the measurement probes.
This makes it possible to reduce the time required for measurement work.

Further, the work processing method and the processing apparatus according to the present invention are not limited to the method for forming the cylinder port of the two-cycle engine for a motorcycle shown in the embodiment, and the work processing method for various works. Needless to say, it can be effectively applied as a processing device.

[0041]

As described above in detail, in the method of machining a workpiece according to the present invention, the position of the portion to be machined in the workpiece is measured in the measuring step, and the workpiece measured in the measuring step is measured in the next step. Since the data of the position of a part is stored and the work is measured based on the data of the position in the next step, the work measured in the measuring step is processed. It becomes possible to perform a proper working operation on the work part of the work regardless of the deviation. Further, in the workpiece processing apparatus according to the present invention, a measuring sensor that moves the measuring sensor with respect to the workpiece by the measuring moving means and measures the position of the portion to be processed in the workpiece, and the measuring machine measures the position. Based on the data of the position of the workpiece in the processed portion, the processing tool is moved by the processing moving means having the same aspect as the measuring moving means in the measuring machine, and the working operation is performed on the processed portion of the work. Since the measuring machine is used to measure the workpiece, and then the working machine performs the machining operation on the workpiece, regardless of the actual deviation of the processed part from the manufacturing drawing. Thus, it becomes possible to perform an appropriate working operation on the work part of the work.

[Brief description of drawings]

FIG. 1 is an overall front view showing a processing apparatus according to the present invention.

FIG. 2 is an overall side view showing a measuring machine in a processing apparatus.

FIG. 3 is an overall side view showing a processing machine in the processing apparatus.

FIG. 4 is a side view showing a measuring probe in the measuring machine with a part thereof omitted.

5 is a cross-sectional side view taken along the line AA in FIG.

FIG. 6 is a block diagram showing a control system of a processing apparatus according to the present invention.

7 (a), (b), and (c) are a sectional side view showing a workpiece to be processed, a sectional side view seen from the other side, and a sectional plan view.

8A and 8B are conceptual cross-sectional side views and cross-sectional plan views showing the actual measurement work by the measurement probe of the measuring machine.

FIG. 9 is a plan sectional view conceptually showing an actual measurement operation using a measurement probe of a measuring machine.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Machine tool, 100 ... Measuring machine 110 ... Measuring probe, 110A ... Spindle, 110B ... Measuring head, 111 ... Proximity sensor (measuring sensor), 120 ... Measuring moving means, 200 ... Processing machine 210 ... Processing tool, 210A ... Spindle, 210B ... Grinding stone, 220 ... Machining moving means, 300 ... Control system, 311, 321 ... Personal computer (control device), W ... Work, Wa ', Wb', Wc ', Wd', We ', Wf ', Wg', Wh ', Wi', Wj '... Edge part (processed part).

Claims (2)

[Claims] 1. A measuring step of measuring a position of a processed part in a work, a step of storing data of a position of the processed part measured in the measuring step, and the work measured in the measuring step. On the other hand, a method of processing a workpiece, which includes: a step of processing based on the position data. 2. A measuring sensor, and a measuring moving means for moving the measuring sensor, wherein the measuring sensor is moved by the measuring moving means with respect to a work,
A measuring machine for measuring the position of the portion to be machined in the workpiece, a machining tool, and a machining moving means having the same aspect as the measuring moving means in the measuring machine, and the work measured by the measuring machine A processing machine for moving the processing tool by the processing moving means based on position data of the processed part of the workpiece to perform a processing operation on the processed part of the workpiece. Processing equipment.