JPH0899242A - Machine tool for combined working - Google Patents

Abstract

PURPOSE: To provide grinding work with the same high accuracy as preceding work even after dressing or truing by carrying out a series of combined work including grinding work with a workpiece attached only one time. CONSTITUTION: With a grinding wheel 343a attached onto a tool head, the grinding wheel 343a is dressed by a dressing means 302 by relatively-moving the dressing means 302 so as to bring it into contact with the grinding wheel 343a by means of drive systems 12, 13. By relatively-moving a grinding wheel measuring means 303 so as to bring it into contact with the grinding wheel 343a by means of the drive systems 12, 13, the dimension of the grinding wheel 343a is measured by the grinding wheel measuring means 303. It is thus possible to carry out a series of combined work including grinding work with a workpiece attached only one time, dress or true the grinding wheel 343a, and maintain high processing accuracy.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a machine tool for composite machining of workpieces.

[0002]

2. Description of the Related Art As an example of conventional work machining, a compound machining will be described in which an outer periphery of a cylindrical work is turned, a hole is formed in the work, and further grinding is performed.

First, the work is attached to a chuck of a lathe and the outer periphery of the work is turned with a cutting tool. Next, remove the work from the lathe, attach it to the drilling machine, and drill a hole.

Next, the work is removed from the drilling machine, mounted on a grinding machine, and ground.

After the grinding, the work is removed from the grinder and attached to a three-dimensional measuring device or the like to measure the shape of the work.

When the surface of the grindstone of the grinder is crushed or clogged, that is, when the surface of the grindstone is worn out, the dresser and the grindstone correcting device are used to redress and reshape the grindstone, and the diameter of the grindstone is measured. .

[0007]

As described above, the work is detached from the lathe and attached to the drilling machine, or detached from the drilling machine and attached to the grinding machine. For this reason, it takes time to attach and detach the work, and it is difficult to maintain high machining accuracy.

Moreover, the grindstone is removed to perform dressing and reshaping. Therefore, there is a problem that it takes time and labor to attach and detach the grindstone.

Further, there is a problem that it is not easy to accurately correct the change in the diameter of the grindstone due to the dressing and the like, and the grinding accuracy is likely to deteriorate.

According to the present invention, by attaching the work once, it is possible to perform various works including the grinding work on the work, and moreover, the grindstone is properly reshaped and reshaped to maintain a high machining accuracy. It is an object of the present invention to provide a machine tool for combined machining capable of performing.

[0011]

A first invention of the present application is a tool head for mounting at least one tool arbitrarily selected from a drill, a turning tool, and a grindstone, and a feed for relatively moving a workpiece with respect to the tool. Means, dressing means, and grindstone measuring means, the dressing means and grindstone measuring means are provided in a common feed means, and the dressing means is brought into contact with the grindstone by the feed means with the grindstone mounted as a tool on the tool head. To relatively move and dress the whetstone by the dressing means, and
A gist of a machine tool for combined machining is characterized in that a grindstone is moved relative to a grindstone by a feed means so that the grindstone is measured by the grindstone measuring means.

A second invention of the present application is a work spindle (1
6), which has a work head (4) on which a work can be attached to and detached from the work spindle (16) and a tool spindle (42), and which has at least a drill, a turning tool, and a grindstone. 1 chosen arbitrarily
Tool head (5) to which two tools can be attached / detached, a machine tool body (1) having a work head (4) and a tool head (5), and a tool in the axial direction of the work spindle (16) of the work head (4) A first index part (6) for changing the axial direction of the tool spindle (42) of the head (5) and a work spindle (16) of the work head (4) capable of continuously rotating in the first direction (A). 1 drive unit (7), a second index unit (8) for indexing the work spindle (16) of the work head (4) in the first direction (A), and a work spindle (16) of the work head (4). A first blocking part (9) for blocking rotation as needed, a second drive part (10) for continuously rotating the tool spindle (42) of the tool head (5), and a tool head (5) tool. A second blocking part (11) for blocking the rotation of the spindle (42) as needed, and a work head (4) and a tool head (5) which are provided in the machine tool body (1) in a three-dimensional manner. Drive system (1
2, 13), dressing means (302), and grindstone measuring means (303), and the grindstone (343) as a tool.
With the a) attached to the tool head, the drive system (12,
13) the dressing means (302) is moved relative to the grindstone (343a) so that the dressing means (302) dresses the grindstone (343a), and the drive system (12, 13) causes the grindstone (343a) to move. ) Is relatively moved so as to bring the grindstone measuring means (303) into contact therewith, and the size of the grindstone (343a) is measured by the grindstone measuring means (303).

A third invention of the present application is a composite machining means for grinding a cylindrical surface, a flat surface or a hole of a work in a state where a grindstone shaft is attached to a tool spindle, a dressing means for correcting the grindstone, and a grindstone A machine tool for combined machining characterized by including a grindstone measuring means for measuring a diameter, a work measuring means for measuring a work after grinding, and an automatic tool changing device for mounting the work measuring means on a tool spindle. And

[0014]

EXAMPLE A machine tool according to an example of the present invention will be described.

This machine tool comprises a composite machining means for grinding a cylindrical surface, a flat surface or a hole of a workpiece with a grindstone shaft attached to a tool spindle, a dressing means for correcting the grindstone, and a grindstone for measuring the diameter of the grindstone. The measuring means, the workpiece measuring means for measuring the workpiece after grinding, and the automatic tool changing device for mounting the workpiece measuring means on the tool spindle are provided.

Then, the composite machining means performs at least turning and grinding on the work attached to the work spindle, and selects any of a plurality of turning, milling, drilling, tapping, and grinder processing. At least turning tools, milling tools, drills, to perform a series of complex operations including machining
A plurality of tools selected from tapping tools and grindstones are attached to the tool spindle one at a time.

The grindstone is a tool for performing grinding, and various ordinary grinding wheels can be used. For example, various types of grinding wheels such as a grindstone shaft, a flat wheel, and a ring wheel can be used.

The dressing means is a tool for performing dressing, for example, dressing or reshaping of a grindstone, and a dresser such as an ordinary diamond tool can be used.

The grindstone measuring means is means for measuring the size of the grindstone by moving relative to the grindstone and contacting the grindstone, and an ordinary touch sensor or the like can be used.

The feeding means is a means for moving the workpiece, the dressing means, and the grindstone measuring means relative to the tool. The direction of each relative movement can be set arbitrarily. For example, the work, the dressing means, and the grindstone measuring means can be moved relative to the tool along the three linear axes, and the work can be moved relative to the two rotation axes for indexing. Furthermore, the dressing means and the grindstone measuring means may be moved relative to each other with respect to the rotation axis for indexing.

As the tool, a grindstone, a turning tool, a cutting tool, a drill, a milling tool, a tapping tool or the like can be used.

When a grindstone is used as the tool, various kinds of grinding work, for example, grinding work of a cylindrical surface, a flat surface or a hole of a work can be carried out.

When a turning tool or a cutting tool is used as the tool, turning, milling, drilling, tapping or the like is possible.

Therefore, by sequentially using various tools, a series of combined machining of turning, milling, drilling, tapping and grinder processing is possible.

Also, a normal automatic tool changer (ATC)
The tool and workpiece measuring means may be exchanged by using. The work measuring means is for measuring the size and shape of the work, and a normal touch sensor can be adopted. In this case, the work and the touch sensor can be relatively moved so as to be in contact with each other, and the size and shape of the work can be measured.

Next, machine tools for combined machining according to the first to third embodiments of the present invention will be described in order.

[0027] The machine tool for combined machining will be described according to the first embodiment of the first embodiment the present invention.

Referring to FIG. The machine tool according to the first embodiment includes a compound machining means, a CNC device 100, a work change 101, a tool changer 102, a work magazine 103, a tool magazine 104, and a work measuring means 30.
1, a dressing means 302, and a grindstone measuring means 303.

The composite machining means includes a machine tool body 1, a work head 4, a tool head 5, a first index portion 6, a first driving portion 7, a second index portion 8, a first blocking portion 9, and a second driving portion 10. , A first drive system 12, a second drive system 13, a cutting oil tank 200, and a cutting oil supply device 201.

The first drive system 12 and the second drive system 13 are
It constitutes the drive system.

The machine tool body 1, the work head 4, the tool head 5, the first index portion 6, the second index portion 8 and the drive system constitute a feeding means.

The machine tool body 1 has a bed 2 and a column 3.

Referring to FIGS. 1 and 2, the work head 4
Has a first casing 15, a work spindle 16, bearings 17 to 19, and a hydraulic device 23. The first casing 15 is provided with a first drive unit 7, a second index unit 8 and a first blocking unit 9. Furthermore, the first
A work spindle 16 is rotatably provided on the casing 15 via bearings 17 to 19. A work holder 20 is detachably attached to the work spindle 16 by an ordinary collet chuck method. The shape of the tapered portion 21 of the work holder 20 matches the mounting hole 22 of the work spindle 16.

The rod 24a of the hydraulic device 23 can be moved in the direction e. Thereby, the work holder 20
The taper portion 21 can be fitted into the mounting hole 22.
The taper portion 21 can be removed from the mounting hole 22 by moving the rod 24a in the f direction.

In the vicinity of the other end of the work spindle 16,
A first blocking unit 9 is provided. The first blocking unit 9 has a hydraulic brake device 25 and a rotor 26. The hydraulic brake device 25 is attached to the first casing 15. The rotor 26 is fixed to the other end of the work spindle 16. The hydraulic brake device 25 can be operated to stop the rotation of the rotor 26, that is, the rotation of the work spindle 16 as needed.

The first drive unit 7 is the first rotary drive motor 2
7, a first gear 28, a second gear 29, and the like. The first gear 28 is fixed to the output shaft of the first rotary drive motor 27. The second gear 29 is fixed to the work spindle 16. The first gear 28 and the second gear 29 can transmit power by a gear (not shown) or the like. When the first rotation drive motor 27 is driven, the work spindle 16 moves to the first
Rotate continuously in direction A.

The second index portion 8 includes a first index motor 30, a third gear 31, a fourth gear 32, a fifth gear 33, a sixth gear 34, a slide mechanism 35, and a first shaft 36.
have. The third gear 31 is fixed to the output shaft of the first index motor 30. The fourth gear 32 is
It is fixed to the first shaft 36. The fourth gear 32 meshes with the third gear 31, and the fifth gear 33 meshes with the sixth gear 34. With the first indexing motor 30,
The work spindle 16 can be indexed in the first direction A in FIG. For example, it is possible to index every 10 ° or 1 °.

However, the fifth gear 33 is slidable only in the axial direction of the first shaft 36. The lever 37a of the slide mechanism 35 meshes with the portion 33a of the fifth gear 33, and when the rod 37b of the cylinder 37 contracts,
The gear 33 slides in the direction of the first shaft 36. As a result, the fifth gear 33 separates from the sixth gear 34. That is, the force of the first indexing motor 30 is not transmitted to the work spindle 16. By doing so, the first rotation drive motor 27 protects the first index motor 30 by preventing the first index motor 30 from rotating while the work spindle 16 is continuously rotating. This is because The first index motor 30 is, for example, a servo motor.

The work holder 20 shown in FIG. 2 has an ordinary air chuck 40. In this air chuck 40,
A cylindrical work W is fixed.

Referring to FIG. The tool head 5 is the second
It has a casing 41 and a tool spindle 42.
The second casing 41 is provided with the second blocking unit 11 and the second drive unit 10.

The tool spindle 42 is the work head 4
The work spindle 16 is of the same type. However, a tool holder is detachably attached to the tool spindle 42 by an ordinary collet chuck method.

The tool holder is, for example, a grinding tool holder, a turning tool holder, a cutting tool holder, or the like, which will be described later, and the same one as the conventional one can be adopted.

In FIG. 1, a grinding tool holder 343 is detachably attached as a tool holder.
As described below, the grinding tool holder 343 can be replaced with another tool holder, such as a turning tool holder.

The second drive unit 10 has a motor (not shown), other gears (not shown), and the tool spindle 4
2 can be continuously rotated.

The first index portion 6 shown in FIG.
It is provided on the first saddle 60 of the drive system 12. The first index portion 6 has a rotary disk 51, a fixed disk 53, and a second index motor 52.
The work head 4 is fixed on the rotating disk 51. The rotating disk 51 can be indexed in the B direction by the second indexing motor 52. The mechanism for doing this indexing is commonly used.

The first drive system 12 and the second drive system 13 are for relatively moving the tool head 5 and the work head 4.

The first drive system 12 includes a first saddle 60 and a second saddle 60.
It has a saddle 61, an X-axis motor 62, and a Z-axis motor 63. The second saddle 61 can be moved in the Z-axis direction along the Z-axis guide 64 of the bed 2 by driving the Z-axis motor 63. Further, the first saddle 60 can be moved in the X-axis direction by driving the X-axis motor 62 along the X-axis guide 65 of the second saddle 61.

The second drive system 13 includes a Y-axis motor 66 and a Y-axis motor 66.
It has a shaft guide 67. The tool head 5 can be moved in the Y-axis direction by driving the Y-axis motor 66.

Referring to FIGS. 4 and 5, a turning tool holder 43, a detent means and a cutting oil supply device 201.
Will be described.

In FIGS. 4 and 5, the grinding tool holder 343 is replaced with the turning tool holder 43. A tool holder 43 for turning is attached to the tool spindle 42 by an ordinary collet chuck method.

The detent means has a fixing member 208, a detent member 212, and a positioning block 203.

The cutting oil supply device 201 has a first cutting oil line 205, a second cutting oil line 206, and a sphere 214.

As described above, the turning tool holder 43, which is also called a bite holder, is inserted into the tool spindle 42. The positioning block 203 is detachably fixed to the end cover 41a of the second casing 41. An L-shaped first passage 204 is formed in the positioning block 203. At one end of the first passage 204,
One end of the first cutting oil line 205 is connected. The other end of the first cutting oil line 205 is connected to the tank 200. Further, another second cutting oil line 206 is provided as needed as shown in FIG. One end of the second cutting oil line 206 is a cutting oil discharge part 207, and the other end is connected to the tank 200.

The turning tool holder 43 includes a fixing member 2
08 is fixed. This fixing member 208 is shown in FIG.
And as shown in FIG. 5, the turning tool 209 has the set screw 30
It is fixed by 0 and 301. Turning Tool 209
A chip 210 is fixed to the. Fixing member 208
The rotation preventing member 212 is provided on the protruding portion 211 so as to protrude. The detent member 212 has a pipe shape.

The detent member 212 includes a second passage 212.
a is formed. The fixing member 208 includes the third passage 2
13 is formed. One end of the second passage 212a of the rotation stopping member 212 is connected to the other end of the first passage 204. The other end of the second passage 212a of the whirl-stop member 212 and one end of the third passage 213 of the fixed member 208 are connected to each other, and form a passage for cutting oil.

A spherical body 214 is provided on the outer surface of the fixing member 208, and the nozzle 215 of the spherical body 214 is connected to the other end of the third passage 213. The sphere 214 is rotatable with respect to the fixed member 208 and can change the discharge direction of the cutting oil OIL. In FIG. 4, the ejection direction of the cutting oil OIL is toward the tip 210.

When the turning tool holder 43 is inserted into the tool spindle 42, the detent member 212 is axially inserted into the positioning block 203 and meshes therewith.
This can prevent the turning tool holder 43 from rotating with respect to the tool spindle 42, the end cover 41a, or the second casing 41. Anti-rotation member 21
The second second passage 212 a is connected to the first passage 204 of the positioning block 203.

Supply motor 200a for cutting oil tank 200
The cutting oil in the cutting oil tank 200 is supplied to the first cutting oil line 205, the first passage 204, the second passage 212a,
The chip 21 passes through the third passage 213 and the nozzle 215.
It is discharged toward 0.

As shown in FIG. 3, the CNC device 100 controls the following.

First, regarding the work head 4, the first rotary drive motor 27, the first index motor 30, the first blocking unit 9, the hydraulic device 23, the X-axis motor 62, and the Z-axis motor 63. , Motor for the second index 5
2 is controlled. The second drive unit 10 and the Y-axis motor 66 are controlled in relation to the tool head 5. The supply motor 2 for the cutting oil tank 200
00a is controlled.

The work changer 101 is for replacing the work holder 20 attached to the work head 4 with another work holder. The tool changer 102 is for replacing the tool holder 43 attached to the tool head 5 with another tool holder. The tool changer 102 may be of the same type as the work changer 101 described above.

The work magazine 103 is for storing a large number of work holders. Tool magazine 10
4 is for storing many tool holders.

The tank 200 has a first cutting oil line 205.
Alternatively, it has a supply motor 200a for sending the cutting oil to the second cutting oil line 206, and this supply motor 200a
Are controlled and operated by the CNC device 100.

Next, with reference to FIGS. 6 to 8, a case where one work W is processed in combination will be described.

As shown in FIG. 6, the cylindrical work W is fixed to the air chuck 40 of the work holder 20 attached to the work spindle 16 of the work head 4. On the other hand, a turning tool 209 (also referred to as a bite) is fixed to the turning tool holder 43 attached to the tool head 5.

The turning tool holder 43 is inserted into the tool spindle 42, and the rotation stopping member 21 of the fixing member 208 is fixed.
By engaging the positioning block 203 with the tool 2, the tool 209 is positioned at the correct position in the circumferential direction.

The work spindle 16 is continuously rotated, the work head 4 is moved in the Z1 direction, and the cutting oil in the tank 200 is discharged from the nozzle 215 as shown in FIG. To do.

Next, refer to FIG. Instead of the turning tool holder 43 shown in FIG. 6, another cutting tool holder 143 is attached. This cutting tool holder 143 is
It has a drill 143a. The drill 143a faces the end surface of the work W of the work holder 40.

After the work spindle 16 is prevented from rotating, the work holder 4 is moved in the Z1 direction. Meanwhile, the tool spindle 42 is continuously rotated. As a result, a hole h is axially formed in the work W (see FIG. 9). Also at this time, the cutting oil is supplied through the line 206.

The work head 4 is returned in the Z2 direction in FIG. Then, as shown in FIG. 8, the work head 4 is indexed in the B1 direction. After that, the work head 4 is moved in the Z1 direction to make a hole h2 in the work W as shown in FIG.
The axial direction of the hole h and the axial direction of the hole h2 intersect at a predetermined angle. At this time, the cutting oil is supplied through the second cutting oil line 206.

Next, another working example of the work will be described with reference to FIGS.

The work W1 shown in FIG. 10 has two holes. The axial direction of the hole h3 and the axial direction of the hole h4 are orthogonal to each other.

The work W2 shown in FIG. 11 has a round portion P1.
And an inclined portion P2.

The work W3 shown in FIG. 12 has a hole h5 formed in the side surface of the small diameter portion P3.

Next, referring to FIGS. 1, 3, 13, and 14, dressing means 302 and grindstone measuring means 30.
3 will be described.

The grindstone measuring means 303 comprises a rotating disk 51.
It is provided in. The dressing means 302 is provided in the grindstone measuring means 303.

The dressing means 302 may be any one capable of dressing. For example, a normal dresser such as a diamond dresser can be adopted. In the illustrated example, the dressing means 302 is a diamond dresser, and has a diamond 302a at its tip.

The grindstone measuring means 303 may be any one capable of measuring the size and shape of the grindstone. For example, a normal measuring means such as a touch sensor can be adopted. In the illustrated example, the grindstone measuring means 303 is a touch sensor.

In the grinding process, instead of cutting oil, another grinding oil is used. For example, the cutting oil and the grinding oil are separately stored in the tank 200, and one of them is selectively sent to the cutting oil supply device 201.

Next, the surface grinding will be described with reference to FIG.

First, the work spindle 16 is positioned and the tool spindle 42 is continuously rotated.

A grinding tool holder 343 is attached to the tool spindle 42. A grindstone 343a is attached to the grinding tool holder 343. The grindstone 343a is a cylindrical grindstone shaft.

A work holder 340 for holding a rectangular parallelepiped work W4 is attached to the work spindle 16. The work holder 340 is similar to the work holder 40 shown in FIG.

In this state, the work head 4 and the tool head 5 are relatively moved in the X-axis, Y-axis, and Z-axis directions to bring the peripheral surface of the grindstone 343a into contact with a desired side surface of the work W4. The grindstone 343a is moved in the X-axis direction to perform surface grinding. In this grinding, the grinding oil is discharged from the cutting oil discharge section 207 of the second cutting oil line 206 toward the grindstone 343a and the work W4. As a result, it is possible to prevent the eyes of the grindstone from being clogged in the grinding process as much as possible, to cause grinding heat and grinding resistance, and to improve the degree of finishing. The grinding oil may be the same as the conventional one.

In the grinding process, a cutting oil other than the cutting oil may be used instead of the cutting oil. For example, the cutting oil and the grinding oil are separately stored in the tank 200,
Either of them can be selectively sent to the cutting oil supply device.

Next, another surface grinding will be described with reference to FIG.

From the state shown in FIG. 16, the work head 4 is moved to Z
Move in one direction to move the end surface of the grindstone 343a to the work W4.
Then, the work head 4 and the tool head 5 are moved relative to each other in the X-axis or Y-axis direction to perform grinding. Except for this point, the surface grinding is the same as that shown in FIG.

Next, cylindrical grinding will be described with reference to FIG.

First, the work spindle 16 is continuously rotated, and the tool spindle 42 is continuously rotated.

A work holder 341 for holding a cylindrical work W5 is attached to the work spindle 16. Work spindle 16, tool spindle 42,
The axes of the work W5 and the grindstone 343a are parallel to each other, and the positions in the Y-axis direction coincide with each other.

From this state, the work head 4 is moved in the Z2 direction and further in the X1 direction to move the grindstone 343.
The peripheral surface of a is brought into contact with the peripheral surface of the work W5. Thereby, cylindrical grinding is performed. At this time, the grinding oil is discharged from the cutting oil discharge portion 207 of the second cutting oil line 206 toward the grindstone 343a and the work W5.

Next, the inner surface grinding will be described with reference to FIG.

First, the work spindle 16 is continuously rotated, and the tool spindle 42 is continuously rotated.

A work holder 342 for holding the work W6 is attached to the work spindle 16.

The work W6 is disk-shaped and has a hole 6Wa in the axial direction. The diameter dimension of the hole W6a of the work W6 is larger than the diameter dimension of the grindstone 343a. Work spindle 16, tool spindle 42, hole W6 of work W6
The axis directions of the a and the grindstone 343a are parallel to each other. The grindstone 343a is located so as to correspond to the hole W6a in the Y-axis direction.

From this state, the work head 4 is moved in the Z1 direction and further in the X1 or X2 direction to bring the peripheral surface of the grindstone 343a into contact with the inner surface W6a of the work W6. Thereby, the inner surface is ground. At this time, toward the grindstone 343a and the inner surface W6a of the work W6,
The grinding oil is discharged from the cutting oil discharge portion 207 of the second cutting oil line 206.

The present invention is not limited to the above-described surface grinding, cylindrical grinding, and inner surface grinding, but can also perform other grinding processes.

Next, a method of reshaping or reshaping the grindstone 343a will be described.

First, the position of the grindstone correcting means 300 is moved to the grindstone correcting means origin position by the first drive system 12, and the tool head 5 is moved to the predetermined Y-axis machine origin position by the second drive system 13. . In the dressing and reshaping of the grindstone 343a, the relative movement by the first drive system 12 and the second drive system 13 is performed based on the positional relationship in this state.

After that, the tool spindle 42 is continuously rotated. In this state, the dressing device 301 and the grindstone 343a are driven by the first drive system 12 and the second drive system 13.
By relatively moving the tip of the dressing means 302.
2a is brought into contact with the grindstone 343a to perform dressing and reshaping. In FIG. 14, the grindstone in this state is indicated by reference numeral 343a (a).

Dressing means 3 for the grindstone 343a
The angle of 02 can be set arbitrarily. For example, the dressing means 302 can be set to be inclined with respect to the wheel grinding surface of the grindstone 343a at an appropriate angle. Thereby,
It is possible to prevent biting and streaking.

After that, the tip 3 of the dressing means 302
02a and the grindstone 343a are separated from each other to stop the rotation of the tool spindle 42. Then, by the first drive system 12 and the second drive system 13, the grindstone measuring means 303 and the grindstone 3
43a is relatively moved to grindstone measuring means 303 and grindstone 3
43a are brought into contact with each other. The grindstone in this state is designated as 34
It is shown by 3a (b). Then, the grindstone is brought into contact with the opposite side in the diameter direction. The position of each contact point is measured by the grindstone measuring means, and the diameter of the grindstone 343a is calculated based on the measured position.

If necessary, the three-dimensional shape of the grindstone 343a can be measured. These measurement methods are the same as the conventional measurement methods using a touch sensor or the like.

The measurement result of the grindstone is transmitted to the CNC device 100.

The measurement of the grindstone 343a can be performed before the dressing or the reshaping.

The CNC device 100 can appropriately perform dressing and reshaping based on the diameter of the grindstone 343a.

In addition, the CNC device 100 has a grindstone 343a.
It is also possible to adjust the relative movement of the work head 4 and the tool head 5 based on the size of the diameter to perform each of the above-described grinding processes. Thereby, even after the dressing or the dressing, the grinding process can be performed with the same accuracy as before.

Next, with reference to FIG. 13, a method for measuring the shape of the work after processing will be described.

After processing, the work measuring means 301 is replaced with the work holder 43 by an automatic tool changing device (not shown; hereinafter referred to as ATC) and attached to the tool spindle 42. The work measuring means 301 is a work holder 3
Similarly to 43, the tool spindle 42 is detachably attached. The exchange of the work measuring means 301 and the work holder 43 is schematically shown by an arrow 304.
The ATC may be the same as the conventional one, but the tool changer 102 described above may be used as the ATC.

Then, the work measuring means 301 and the work W are relatively moved by the first drive system 12 and the second drive system 13, and the work measuring means 301 and the work W are brought into contact with each other, whereby the size of the work W and Measure the shape. This measuring method is the same as the conventional measuring method using a touch sensor or the like. The measurement result is transmitted to the CNC device 100.

[0111] With reference to the second embodiment FIGS. 19 and 20, it will be described machine tool for combined machining according to a second embodiment of the present invention.

This machine tool has a second blocking section 11 and a sensor 47. Then, on the tool spindle 42,
A recess 46 and a detection plate 48 are provided. The other configurations are the same as those of the machine tool according to the first embodiment described above, and are designated by the same reference numerals.

The second blocking portion 11 has an air cylinder 243 and a lock member 44, as shown in FIGS. 19 and 20. The lock member 44 is the rod 4 of the air cylinder 243.
It is attached to 5. The rod 45 extends and the locking member 4
4 engages in the recess 46 of the tool spindle 42. Accordingly, the rotation of the tool spindle 42 can be prevented and the tool spindle 42 can be positioned.

A sensor 47 shown in FIG. 20 is used to align the recess 46 with the lock member 44. When the sensor 47 detects the detection plate 48 of the tool spindle 42, based on a command from the CNC device 100, the second drive unit 10
Is stopped and the tool spindle 42 is positioned.

The second blocking unit 11 is controlled by the CNC device 100.

When the positioning signal of the sensor 47 shown in FIG. 20 is transmitted to the CNC device 100, the C signal is transmitted as necessary.
The NC device 100 stops the second drive unit 10.

[0117] With reference to Third Embodiment FIG. 21 and FIG. 22, described machine tool for combined machining according to a third embodiment of the present invention. This machine tool is a multi-face machining device and is of a horizontal machining center type.

This machine tool 401 includes an operation panel 40
2, NC device 403, work supply means 404, and processing device main body 500 are set. The machine tool 401 is surrounded by a tip guard 407. Chip guard 407
Has doors 405 and 406.

The processing apparatus main body 500 has the same structure as the composite processing means, work measuring means, dressing means, and grindstone measuring means in the above-described first or second embodiment. Further, the processing apparatus main body 500 has an automatic tool changing means (not shown). The automatic tool changing means is similar to the tool changer and tool magazine of the first embodiment described above.

The NC unit 403 is the C of the first embodiment described above.
It has the same configuration as the NC device.

Next, the work supply means 404 will be described.
The work supply means 404 has a work station 421 and an automatic work changer 422.

Conveyor 42 of workstation 421
A large number of work holders 423 are arranged at 5.
A work W is mounted on each work holder 423. The work holder 423 is similar to the work holder of the first embodiment described above.

The work supply means 404 is for loading a large number of works W arranged in the workstation 421 one by one into the processing apparatus main body 500, and after processing, unloading the works W from the processing apparatus main body 500. .

The conveyor 425 of this work station 421 is operated by a driving means (not shown). The rotation timing of the conveyor 425 is given by the program of the NC device 403. Further, each operation of the automatic work changer 422 described below is performed according to the program of the NC device 403.

The automatic work changer 422 has a changer body 429 and an arm 436. The changer body 429 can rotate 180 ° around the vertical fulcrum shaft 431.

The arm 436 has a shape capable of detachably holding the work holder 423.

Next, the operation of the automatic work changer 422 will be described.

The automatic work changer 422 includes a work holder 42 attached to the work station 421.
3 is held by the arm 436. Then, the work holder 423 is removed from the work station 421, the changer body 429 is rotated forward by 180 °, and the arm 43 is rotated.
6 is moved to the processing apparatus main body 500, and the processing apparatus main body 50 is moved.
The work holder 23 is attached to the work head 0. After that, rotate the changer body 429 in the opposite direction by 180 °,
The arm 436 is returned to the workstation 421 side.

In this state, similarly to the first or second embodiment described above, the machining apparatus body 500 performs grinding, turning, drilling, etc. on the workpiece.

A procedure for unloading the machined work W to the work station 421 after machining will be described.

As described above, the arm 436 is returned to the workstation 421 side. From this state, the changer body 429 rotates forward by 180 °. Then, the arm 436 holds the work holder 423 and removes it from the processing apparatus main body 500. After this, the changer body 4
The work holder 423 is attached to the work station 421 by the arm 436 by rotating the 29 reversely by 180 °.

In this way, the loading, processing and unloading of one work W is completed.

The work W to be processed next is the conveyor 4
It is sent to a position facing the arm 436 by 25. The workpieces W that are sequentially sent are sequentially loaded into the processing apparatus main body 500 by the above-described procedure, after processing, unloaded from the processing apparatus main body 500 and returned to the workstation 421.

Modifications The present invention is not limited to the above embodiments.

For example, in the first embodiment, the dressing means 302 and the grindstone measuring means 303 may be attached not to the rotary disk 51 but to other things. For example, it may be provided on the work head 4. In this case, the first
The indexing unit 6 can index the dressing means and the grindstone measuring means. Thereby, even if the shape of the grindstone is complicated, the dressing means and the grindstone measuring means can be brought into contact with the grindstone at an appropriate angle.

Further, in the embodiment shown in FIG. 6, the fixing member 208 may be formed as a part of the turning tool holder 43. Further, the second cutting oil line 206 does not necessarily have to be provided. In that case, for example, in the processing shown in FIGS. 8 and 7, the cutting oil or the grinding oil can be directly supplied to the tool or the work from the positioning member.

The tool head 5 shown in FIG. 1 may be movable in the X-axis direction and the Z-axis direction. In that case, it is not necessary to move the work head 4 in the X-axis direction or the Z-axis direction. Further, in addition to drilling after turning the work, tapping, milling, etc. can be performed by selecting an appropriate tool.

[0138]

According to the present invention, it is possible to perform a series of combined machining including grinding and the like, and to reshape or reshape a grindstone by attaching a work once.

Further, grinding can be performed based on the diameter of the grindstone. Thereby, even after the dressing or the dressing, the grinding process can be performed with the same accuracy as before.

Therefore, as compared with the case where the work is mounted a plurality of times, it is possible to carry out the complex machining and the revising of the grindstone with high accuracy. Moreover, the labor and time required for mounting can be saved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a machine tool for combined machining according to a first embodiment of the present invention.

2 is a cross-sectional view showing an internal structure of a work head of the machine tool shown in FIG.

FIG. 3 is a schematic diagram showing a control system of the machine tool shown in FIG.

FIG. 4 is a side view showing a tool holder of the machine tool shown in FIG. 1 and its peripheral portion.

5 is a front view showing a turning tool holder of the machine tool shown in FIG. 1 and its peripheral portion.

FIG. 6 is a diagram showing an example of turning of a workpiece by the machine tool shown in FIG. 1.

FIG. 7 is a diagram showing another example of machining a workpiece.

FIG. 8 is a view showing another example of machining a work.

FIG. 9 is a view showing an example of a processed work.

FIG. 10 is a view showing an example of another processed work.

FIG. 11 is a view showing an example of another processed work.

FIG. 12 is a view showing an example of another processed work.

FIG. 13 is a diagram showing automatic tool change in the machine tool shown in FIG. 1.

14 is a side view showing dressing means and tool measuring means of the machine tool shown in FIG.

15 is a partial perspective view showing surface grinding by the machine tool shown in FIG.

16 is a partial plan view showing surface grinding by a method different from the surface grinding shown in FIG.

17 is a partial plan view showing cylindrical grinding by the machine tool shown in FIG. 1. FIG.

FIG. 18 is a partial plan view showing inner surface grinding by the machine tool shown in FIG. 1.

FIG. 19 is a partial axial sectional view showing a configuration for preventing rotation of a tool spindle of a machine tool for combined machining according to a second embodiment of the present invention.

20 is a partial cross-sectional view of the tool spindle shown in FIG. 19 in a direction perpendicular to the axis.

FIG. 21 is a front view showing a machine tool for combined machining according to a third embodiment of the present invention.

22 is a plan view of the machine tool shown in FIG. 21.

[Explanation of symbols]

 1 Machine Tool Main Body 2 Bed 3 Column 4 Work Head 5 Tool Head 10 Second Drive Section 12 First Drive System 13 Second Drive System 42 Tool Spindle 43 Turning Tool Holder 200 Cutting Oil Tank 203 Positioning Block 208 Fixing Member 209 Tool 212 Non-rotating member 301 Work measuring means 302 Dressing means 303 Grinding stone measuring means 343 Grinding tool holder 343a Grinding stone 401 Machine tool 403 NC device 404 Work supply means 421 Workstation 422 Automatic work changer 423 Work holder 436 Arm 500 Processing device body

Claims (4)

[Claims] 1. A tool head for mounting at least one tool arbitrarily selected from a drill, a turning tool, and a grindstone, a feeding means for relatively moving a workpiece with respect to the tool, a dressing means, and a grindstone measuring means. Provided, the dressing means and the grindstone measuring means are provided in a common feeding means,
With the grindstone mounted on the tool head as a tool, the feed means relatively moves the dressing means so that the dressing means contacts the grindstone, the dressing means dresses the grindstone, and the feed means contacts the grindstone measuring means with the grindstone. A machine tool for combined machining, characterized in that the size of the grindstone is measured by a grindstone measuring means by relative movement to the. 2. A work spindle (16), a work head (4) on which a work is attachable to and detachable from the work spindle (16), and a tool spindle (42), at least the tool spindle (42). A tool head (5) to which one tool arbitrarily selected from a drill, a turning tool and a grindstone can be attached / detached, a machine tool body (1) having a work head (4) and a tool head (5), and a work head The tool spindle (4) of the tool head (5) with respect to the axial direction of the work spindle (16) of (4)
First index part (6) that changes the axial direction of 2)
And the work spindle (16) of the work head (4) first
The first drive unit (7) which is continuously rotatable in the direction (A) and the work spindle (16) of the work head (4)
A second index portion (8) for indexing in the direction (A), a first blocking portion (9) for blocking rotation of the work spindle (16) of the work head (4) as necessary, and a tool head (5) A second drive part (10) for continuously rotating the tool spindle (42) of the tool, a second blocking part (11) for blocking the rotation of the tool spindle (42) of the tool head (5) as necessary, Work head (4) provided on the machine body (1)
A drive system (12, 13) capable of relatively three-dimensionally moving the tool head (5), a dressing means (302), and a grindstone measuring means (303), and the grindstone (343a) is used as a tool. With the head mounted on the head, the whetstone (343) is driven by the drive system (12, 13).
The dressing means (302) is moved relative to (a) so that the whetstone (343a) is dressed by the dressing means (302), and the drive system (1)
2 and 13) relatively moves the grindstone (343a) so that the grindstone measuring means (303) is brought into contact with the grindstone (343a), and measures the size of the grindstone (343a) by the grindstone measuring means (303). Machine tool. 3. A composite machining means for grinding a cylindrical surface, a flat surface, or a hole of a workpiece with a grindstone shaft attached to a tool spindle, dressing means for correcting the grindstone, and grindstone measuring means for measuring the diameter of the grindstone. A machine tool for combined machining, comprising: a work measuring means for measuring a work after grinding; and an automatic tool changing device for mounting the work measuring means on a tool spindle. 4. A composite machining means performs at least turning and grinding on a work attached to a work spindle, and selects any of a plurality of turning, milling, drilling, tapping and grinder processing. To perform a series of complex machining including machining,
The machine tool for combined machining according to claim 3, wherein a plurality of tools selected from at least a turning tool, a milling tool, a drill, a tapping tool, and a grindstone are attached to the tool spindle one by one in order.