JPH07112655B2 - Multi-purpose processing machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-purpose processing machine (multi-purpose machine tool) which has a basic construction of a radial drilling machine and can handle a wide variety of workpieces such as a gate type NC processing machine and a five-sided processing machine.

[0002]

2. Description of the Related Art In a conventional radial drilling machine, an arm is rotatably supported by a support column in a cantilever manner, and a main shaft of a spindle head which can be slid by a manual handle is vertically movable by a lifting handle. Then, for a large workpiece on the table, by rotating the arm, moving the spindle head, and raising / lowering the spindle, the tool is positioned, and various processing such as drilling and tapping is performed. On the other hand, the portal type machine has a column-shaped structure and employs a powerful spindle head and spindle in order to perform heavy cutting of large workpieces with high precision. Also, the five-sided machine adopts a universal head for the spindle head,
The spindle is switched between horizontal and vertical postures, enabling five-sided machining of large workpieces.

Since the machine tools as described above each have a special function, each production processing plant must be equipped with a processing machine according to the processing application, and thus the radial drilling machine, The equipment costs of many processing machines such as gate-type processing machines and five-sided processing machines are increasing, and the factory installation area is being expanded. In addition, as a recent production trend, there are many kinds of small-lot production, and this tendency is remarkable especially in small and medium-sized enterprises. In addition, small and medium-sized enterprises cannot afford to buy expensive machines because of the shortage of manpower, the small machine installation area in factories, and the scarce capital investment for purchasing machines. Furthermore, although the radial drilling machine is capable of machining large workpieces and the like and is relatively inexpensive, it is currently placed in one corner of the factory in the factory equipment machine. Making more effective use of this radial drilling machine is an on-site issue for small and medium-sized enterprises.
It is also a problem that must be resolved.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the fact that the individual functions of a conventional processing machine are not combined, and it has a basic structure of a radial drilling machine and a gate type NC processing machine. It is an object of the present invention to provide a versatile processing machine (multi-purpose machine tool) capable of handling a wide variety of work pieces such as a surface processing machine.

[0005]

According to a first aspect of the present invention, a table that is moved by a servomotor is mounted on a machine base, and an arm is pivotally mounted on a support column that is erected on the machine base. Hold and support this arm with a manual handle to lengthen the arm
A radial drilling machine equipped vertically capable spindle of move possible spindle head Toko direction with lifting the handle, arranged on the machine base a sliding table for detaching movement relative to said arm, said
Attach the free end of the arm to the sub-support column that is erected on the slide base.
It does not have a detachable portal structure, and the spindle head is detachable from the nut body that is screwed into the ball screw of the servo motor, and the movement of the spindle head in the Y-axis direction (arm longitudinal direction) is fed by the servo motor and the manual handle. It is a multi-purpose processing machine characterized by being able to switch to.

According to a second aspect of the present invention, a table which is moved by a servomotor is mounted on the machine base, and at the same time, an arm is rotatably cantilever-supported on a support column which is erected on the machine base.
A radial drilling machine equipped vertically capable of longitudinally of move possible spindle head Toko main axis of the arm in the lifting handle handwheel this arm, away to the arm
Place a sliding table that moves in close contact on the machine table and plant it on the sliding table.
The free end of the arm is detachably connected to the standing sub-support pillar.
It does not have a connected gate type configuration, and the spindle head can be attached to and detached from the nut body that is screwed onto the ball screw of the servo motor, and the movement of the spindle head in the Y-axis direction (arm longitudinal direction) can be switched between servo motor feed and manual handle feed. In addition, the multi-purpose processing machine is characterized in that a universal head can be attached to and removed from the main spindle portion of the main spindle head to perform five-sided machining.

[0007]

With the above-mentioned means, when the sub support pillar is separated from the arm, the nut body screwed into the ball screw is separated from the spindle head, and the workpiece is machined as a normal radial drilling machine by manually operating each axis. In addition, when the sub-support pillar is engaged and supported at the free end of the arm, it has a gate-shaped structure and performs heavy cutting X,
Workpiece machining is performed under the Y-axis 2-axis NC control operation. Further, by mounting a universal head on the main spindle, it is possible to perform five-sided machining in a radial drilling machine or a portal type construction, and the radial drilling machine is retrofitted and utilized as a multi-purpose processing machine.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a multi-purpose processing machine (composite machine tool) of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of a multi-purpose processing machine (composite machine tool) of the present invention, and FIG. 2 is a plan view of a gate type configuration. FIG. 3 is an action plan view of a radial drilling machine, FIG. 4 is an action plan view of an arm pivoting operation, and FIG. 5 is a perspective view showing a mechanism for attaching and detaching a nut body and a spindle head. Figure 6
FIG. 6 is a side sectional view showing another attachment / detachment mechanism of the nut body and the spindle head. FIG. 7 is a side sectional view of a machine body having a universal head mounted on a main shaft.

In FIGS. 1 and 2, M ₀ indicates the entire multi-purpose processing machine (composite machine tool) of the present invention. Two parallel guide rails 2 and 3 are provided in the center of the upper surface of the machine base 1. The table 4 is mounted and supported via sliding guides 5 and 6 on the lower surface thereof, and a ball screw 7 and a nut body 8 driven by an X-axis servo motor MX drive the table 4 in the machine front-rear direction (X-axis direction). To send. The motor feed is performed by the NC controller 10 and the X-axis manual pulse generator 1 attached to the NC controller 10.
Even with 1, you can drive with the feeling of using a handwheel,
Send the table. Further, the holding cylinder portion 14A of the arm 14 is engaged with the support column 13 that is erected on one side of the machine base 1 so as to be cantilevered so as to be rotatable. The arm 1
4 is clamped at an arbitrary turning position.

Reference numeral 15 denotes a spindle head, which is provided with a spindle 16 mounted in a hanging posture, is raised and lowered by an elevating handle 17, a spindle motor M rotates the spindle at a high speed, and a work W is punched and processed. The spindle head 15 is the sliding surface 1 of the arm 14.
4B is movably engaged and supported, and the nut body 20 of the ball screw 19 and the bracket which are entangled between the Y-axis servomotor MY on the arm holding cylinder portion 14A and the bearing body 18 planted on the upper surface of the arm free end portion 14C. It is connected to the back via 150. Then, the spindle head 15 is the Y-axis servomotor MY.
Thus, in addition to being automatically fed in the left-right direction of the machine (Y-axis direction), the Y-axis manual pulse generator 12 attached to the NC control device 10 can be used to move with a feeling of hand-held handle operation. In addition, the nut body 20 connected to the back surface of the spindle head 15
Is detached from the spindle head 15 on the free end side of the arm 14 by the attaching / detaching mechanism 30 as shown in FIGS. In the above-mentioned state, the spindle head 15 is the nut body 2 of the ball screw 19.
It is separated from 0, and although it is not shown in the figure, it is in a relation that it can be manually operated and fed by a spindle head feed handle in the Y-axis direction. This state is the functional state of the radial drilling machine, in which each axis (Y axis, Z axis) other than table feed can be fed by the handle, and the spindle head 15 pivots on the table by the pivoting of the arm and the spindle for the work W on the table. Three-dimensional positioning of the head 15 and the main shaft 16 is performed.

Next, a mechanism for making the radial drilling machine into a processing machine having a portal structure will be described. Reference numeral 21 is a sub-support pillar, which is set up on a slide base 24 mounted on guide rails 22 and 23 on the machine base so that the free end 14C of the arm 14 and the square hole 21A can be attached / detached. ing. The sliding table 24 is driven in the arm direction and the anti-arm direction when the rod 25 of the air cylinder C is projected, and the square hole 21A of the sub-support column 21 is driven.
Engages with the corner of the arm free end 14C, and in this state, the slide base 24 is fixed by the clamp bolt 26 so as not to move. As described above, in addition to a simple machine having a gantry structure, heavy cutting of a large workpiece W can be automatically operated on the X and Y axes by the NC controller 10 with high rigidity.
It is possible to perform work processing by operating the handle with the X and Y axis manual pulse generators 11 and 12. In addition, in order to change from the gate-type configuration to the radial drilling machine again, after loosening the clamp bolt 26 by manual operation, the air cylinder C is operated and the rod 25 is contracted, so that the arm is moved as shown in FIGS. 14 slides the slide base 24 away from the sub support column 2
The square hole 21A of No. 1 is removed from the corner of the free arm end 14C.
With this, the free end 14C of the arm 14 becomes a free-standing cantilever arm as shown in FIGS. 3 and 4, and the arm can be swung forward in the direction of the machine as shown by the arrow. Further, when the nut body 20 of the ball screw 19 is connected to the spindle head 15, the spindle head 15 can be manually fed in the longitudinal direction of the arm by operating the manual pulse generator 12. On the other hand, in order to feed the spindle head 15 by the handle in the Y-axis direction without using the pulse motor MY, the nut body 20 is moved to the position shown in FIGS.
By the functions of the attaching / detaching devices 30, 40, etc. shown in FIG. As a result, the spindle head 1
5 can be moved on the sliding surface of the arm by a Y-axis feed handle (not shown).

Next, the structure of the attaching / detaching devices 30 and 40 will be described. In the system using the tightening handle 31 shown in FIG. 5, a bracket 150 is attached to the back surface of the spindle head 15, and the nut body 20 in the relation of the dovetail 150A and the dovetail groove 20C of the mounting seat 20A is attached to the mounting seat 20A. Hole 2 opened in
0B through the tightening bolt 31, and tap hole 1 of the bracket
The nut body 20 is attached and detached with the tightening bolts 31 screwed into 50B. The attachment / detachment device 40 of FIG. 6 incorporates a plurality of pairs of clamp cylinders KC for performing clamp C and unclamp AC by fluid pressure in the bracket 150 ', and the rods of the cylinders KC are provided with hooks 50, 51 for clamping. . Then, at the time of clamping, the hooks 50 and 51 tighten and fix the attachment seat 20A 'of the nut body 20. When unclamping AC, hook 50
As shown by ‘51’, the nuts 20 are separated from the mounting seat 20A ′ to loosen the tightening, and the nut body 20 is attached to the bracket 150 of the spindle head 15.
Separate from ´. Further, although not shown, a system using a magnetic chuck may be used. For example, the mounting seat 20A is strongly attracted and fixed when the magnetic chuck attached to the bracket is biased.

Finally, an embodiment in which the universal head UH is attached to the main shaft 16 to form a five-face processing machine for the upper surface W1 of the workpiece W1 and the left and right front and rear side surfaces W2 will be described with reference to FIG. The universal head UH can orient the main shaft 16A for mounting the tool in the vertical and horizontal directions by rotating the swinging handles 60 and 61 about the horizontal and vertical axis centers a and b, respectively. And the spindle feed handle 1
By the operation of 7, the tool (not shown) is placed on the upper surface W of the work W.
1. Five-side processing is performed toward the front and rear side surfaces W2. This five-sided machining can be performed either in the radial drilling machine or in the portal configuration.

Of course, the present invention is not limited to the above-mentioned embodiment, and it is a matter of course that the design change can be freely made within the scope of the invention. For example, the detailed configuration of each unit is not limited to that shown in the drawings.

[0015]

[Effect] According to the present invention, since it is configured as described above, when the sub-support pillar is separated from the arm, the nut body screwed into the ball screw is separated from the spindle head, and the manual operation of each axis is performed as a normal radial drilling machine. Can process the workpiece. In addition, when the sub-support column is supported by being engaged with the free end of the arm, a heavy-duty cutting process is performed in the double-axis NC of the X- and Y-axes by forming a gate structure
Work machining is performed under controlled operation. Furthermore, by mounting a universal head on the spindle, five-sided machining is possible when using a radial drilling machine or a gate-type configuration.The radial drilling machine is retrofitted and used as a versatile processing machine that exhibits a wide variety of processing and machine functions. To be done. For this reason, it is excellent as a versatile machine for small and medium-sized enterprises, because a single machine can perform a wide variety of machining and machine functions in a small factory installation area, and the investment cost of the machine can be small. effective. Furthermore, the existing radial drilling machine can be retrofitted into a versatile processing machine that exhibits a wide variety of processing and machine functions, and this can be easily used again as a radial drilling machine.

[Brief description of drawings]

FIG. 1 is a front view of a multi-purpose processing machine (composite machine tool) of the present invention.

FIG. 2 is a plan view in a gate type configuration.

FIG. 3 is an action plan view of a radial drilling machine.

FIG. 4 is a plan view of action when the arm is turned.

FIG. 5 is a perspective view showing a mechanism for attaching and detaching the nut body and the spindle head.

FIG. 6 is a side sectional view showing another attachment / detachment mechanism of the nut body and the spindle head.

FIG. 7 is a side sectional view of a machine body having a universal head mounted on a spindle.

[Explanation of symbols]

1 Machine 11, 11 Manual pulse generator 10 NC controller 14 Arm 15 Spindle head 19 Ball screw 20 Nut body 20A Mounting seat 150, 150 'Bracket 21 Sub-support pillar 24 Sliding base 26 Clamp bolt 30 Detaching mechanism 40 Detaching mechanism 50 , 51 Hook KC Clamp cylinder UH Universal head M ₀ Multi-purpose processing machine MX, MY Servo motor

Claims (2)

[Claims] 1. A table, which is moved by a servomotor, is mounted on a machine base, while an arm is rotatably cantilever-supported on a support column which is erected on the machine base, and a manual handle is mounted on the arm to support the arm. in the longitudinal direction of the spindle of the move possible spindle head Toko a vertically capable equipped with radial drilling machine in the lifting handle, the sliding board the machine base on which detaching movement relative to said arm
The sub-support columns that are set up on the sliding table and are mounted on the sliding table.
The free end of the arm is detachably connected, and the spindle head is detachably attached to a nut body screwed to the ball screw of the servomotor to move the spindle head in the Y-axis direction (arm.
A multi-purpose processing machine characterized by being able to switch between the servo motor feed and the manual handle feed in the longitudinal direction . 2. A table, which is moved by a servo motor, is mounted on a machine base, and an arm is rotatably supported by a support column which is erected on the machine base so that the arm can be pivotally supported by a manual handle . in the longitudinal direction of the spindle of the move possible spindle head Toko a vertically capable equipped with radial drilling machine in the lifting handle, the sliding board the machine base on which detaching movement relative to said arm
The sub-support columns that are set up on the sliding table and are mounted on the sliding table.
The free end of the arm is detachably connected, and the spindle head is detachably attached to a nut body screwed to the ball screw of the servomotor to move the spindle head in the Y-axis direction (arm.
A multi-purpose processing machine characterized in that the longitudinal direction) can be switched between servo motor feed and manual handle feed, and that a universal head can be attached to and detached from the spindle portion of the spindle head to perform five-sided machining.