JPH06285555A - Punch press machine with cutting device - Google Patents

Abstract

PURPOSE:To diversify the working by providing a working head, a turret, a main shaft head, a rotation driving part, and an ascending/descending driving part. CONSTITUTION:A punch working part 17 is constituted of the upper turret 14 and the lower turret 16, and its working center position is P. In the side of the upper turret 14, a cutting device 20 is arranged. This cutting device 20 is provided in the side part of the upper frame 3, and mainly constituted of a turret 22 in which a tool holder 29 for holding various cutting tools 21 is installed, an index motor 23 for indexing a desired tool 21 on the turret 22, a main shaft spindle 24 in which the indexed tool 21 is installed, a cylinder 25 for driving to allow the main shaft spindle 24 to ascend and descend and a servomotor 26, and a spindle motor 27 for driving to rotate the main shaft spindle 24.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a punch press machine, and more particularly to a punch press machine with a cutting machine capable of cutting a plate material.

[0002]

2. Description of the Related Art In a punch press machine for punching a plate material, a punch press machine with a tapping device capable of tapping the plate material has been put into practical use. The tapping device in this type of punch press machine is provided, for example, on the upper frame side of the punch press machine, and is mainly composed of a tapping head that holds a tap at its tip and a drive motor thereof.

During processing, for example, by moving the plate material,
The punched hole is arranged at a position facing the tapping head. Then, the tapping head is driven by the driving device to perform tapping processing on the plate material. Since the tapping device in the conventional punch press machine is a dedicated device for tapping processing, the processing is limited to cutting processing only by tapping processing. On the other hand, if it is possible to perform various cutting processes other than tapping by one punch press machine, it is convenient because various processes can be achieved and various processes can be efficiently performed.

An object of the present invention is to make it possible to diversify processing.

[0005]

A punch press machine with a cutting machine according to the present invention comprises a machining head, a turret, a spindle head, a rotary drive section, and a lift drive section. The processing head punches a plate material. The turret has a plurality of stations for holding a cutting tool for cutting a plate material and is rotatable. The spindle head has a chuck portion for chucking a tool. The rotary drive unit rotates the spindle head at a predetermined speed. The elevating and lowering drive unit elevates and lowers the spindle head at a predetermined speed.

[0006]

In the present invention, the plate material is punched by the processing head. When the plate material is cut, the turret is rotated to index the station holding the desired cutting tool. Then, the indexed tool is chucked on the chuck portion of the spindle head. Next, while rotating the spindle head at a predetermined speed by the rotation drive unit,
The plate material is cut by moving the spindle head up and down at a predetermined speed by the lifting drive unit.

In this case, since the turret is provided with a plurality of stations for holding tools, various cutting tools can be held by holding various cutting tools in each station. It is possible to diversify processing.

[0008]

1 shows a punch press according to an embodiment of the present invention. This punch press machine 1 mainly includes a lower frame 2 and an upper frame 3 arranged above the lower frame 2.
And a throat portion 4 that supports the upper frame 3 from the rear (upper side in FIG. 1).

A fixed table 10 is arranged at the center of the upper surface of the lower frame 2. Further, a pair of guide rails 5 and 6 are arranged on both sides of the upper surface of the lower frame 2. A carriage 7 is arranged on the guide rails 5 and 6 so as to be movable in the front-rear direction (Y-axis direction). Moving tables 8 and 9 arranged on both sides of a fixed table 10 are fixed to the carriage 7. Further, the cross slide 15 is provided in the carriage 7 in the left-right direction (X-axis direction).
It is provided to be movable. Work holders 11 and 12 for holding the plate material W are attached to the cross slide 15.

The upper frame 3 is rotatably provided with an upper turret 14 for accommodating a plurality of punches (not shown) arranged on the circumference. On the other hand, on the lower frame 2 side, a lower turret 16 that houses a plurality of dies (not shown) arranged on the circumference is arranged to face the upper turret 14. The upper turret 14 and the lower turret 16 form a punching section 17, and the processing center position is P.

A cutting device 20 is arranged on the side of the upper turret 14. This cutting device 20 is provided on the side of the upper frame 3, and as shown in FIGS. 2 and 3, is equipped with a tool holder 29 that holds various cutting tools 21 such as a drill, a tap, and an end mill. Turret 22, an index motor 23 for indexing a desired tool 21 on the turret 22, a spindle spindle 24 on which the indexed tool 21 is mounted, a cylinder 25 for driving the spindle spindle 24 up and down, It is mainly composed of a servo motor 26 and a spindle motor 27 for driving the spindle spindle 24 to rotate.

The turret 22 is a generally disk-shaped member as shown in FIG. 4, and has a plurality of stations in which a plurality of tool grips 30 are radially arranged. Each tool gripper 30 has a pair of claw members 31 that can be opened and closed. The claw member 31 is always placed in a closed state in which the tool is gripped by the spring force of a coil spring 32 provided on the rear end side (inward side of the turret 22). On the other hand, on the side of the turret 22, as shown in FIG. 3, an air cylinder 33 is arranged. A contact portion 34 for contacting the tip of the claw member 31 of the tool gripping portion 30 and opening the claw member 31 is attached to the tip of the piston rod of the air cylinder 33. Further, below the air cylinder 33, an optical sensor 38 for detecting a cutting loss of the tool 21 is provided. The optical sensor 38, as shown in FIG.
a and a light receiving portion 38b. The optical sensor 38 is provided at the tip of the piston rod 19a of the air cylinder 19 arranged below the air cylinder 33. As a result, the optical sensor 38 can approach and separate from the tool 21. As shown in FIG. 4, a notch 22a is formed in a part of the outer circumference of the turret 22. The notch 22a is arranged below the spindle 24 during processing by the cutting device 20 and serves as a processing area for the spindle 24 to move up and down. By providing the notch 22a as such a processing area, a tool exchanging device for exchanging tools between the tool gripping portion 30 and the spindle 24 becomes unnecessary, and the structure is simplified.

A hole 22b is formed in the center of the turret 22 as shown in FIG. On the other hand, the horizontal frame 34 above the turret 22 has a support shaft 3 protruding downward.
The upper part of 5 is fixed. A bracket 36 is provided around the support shaft 35 via a bearing. Bracket 3
The lower part of 6 is inserted into the hole 22b and fixed on the turret 22. With this configuration, the bracket 36 and the turret 22 are rotatable around the support shaft 35. A gear 40 is fixed around the bracket 36. A pinion 41 that meshes with the gear 40 is fixed to the output shaft 23a of the index motor 23. Also,
A dog 42 is attached to the boss portion of the gear 41. On the other hand, the horizontal frame 34 is provided with a proximity switch (not shown) for detecting the dog 42. When the dog 42 is detected by this proximity switch, the turret 2
Two rotation positions (indexing positions) can be detected.

As shown in FIG. 6, the main body of the cylinder 25 is
It is fixed to the side of the vertical frame 45. A connecting member 47 is attached to the tip of the piston rod 25a of the cylinder 25 via a floating joint 46.
Further, below the cylinder 25, on the vertical frame 45, rodless cylinders 48 are vertically arranged.
The rodless cylinder 48 is fixed to the side portion of the vertical frame 45 via floating joints 49 and 50 arranged at the upper and lower ends thereof. On the other hand, a support member 51 extending in the up-down direction is arranged on the side of the vertical frame 45. The upper end of the support member 51 has a connecting member 47.
The central portion is connected to the piston 52 of the rodless cylinder 48. As shown in FIG. 3, the servo motor 26 is fixed to the upper end of the support member 51. on the other hand,
A rail 55 extending in the vertical direction is arranged on the vertical frame 45, and the support member 51 is vertically movable on the rail 55 via a guide member 52 fixed to the side portion thereof. A timing pulley 56 is attached to the output shaft end of the servo motor 26.

As shown in FIG. 6, a ball screw 57 extending vertically is disposed on the side of the support member 51. The ball screw 57 is inserted through a support unit 58 fixed to the side of the support member 51, and the support unit 5
It is rotatably supported by 8. A timing pulley 59 is attached to the upper end of the ball screw 57. A timing belt 60 is wound around the timing pulleys 56 and 59.

A ball nut 62 is screwed onto the ball screw 57. A support member 63 extending in the vertical direction is fixed to the side portion of the ball nut 62. On the other hand, on the support member 51, as shown in FIG. 3, a rail 64 extending in the vertical direction is arranged. Support member 63
Can be moved up and down on the rail 64 via a guide member 65 fixed to the back side thereof and engaged with the rail 64.

On the side of the slide member 63, the spindle 2
4 and a cylinder 78 disposed above the cylinder 4 for mounting a tool on the spindle 24. As shown in FIG. 7, the spindle 24 is a member extending in the vertical direction, and is rotatably supported by a bracket 66 fixed on the support member 63. At the tip of the spindle 24, a tool mounting hole 2 for mounting a tool holder 29
4a is formed. Timing pulleys 67 and 68 are attached around the center of the spindle 24. On the other hand, a timing pulley 69 is attached to the output shaft 27a of the spindle motor 27. A timing belt 70 is wound around the timing pulleys 68 and 69. As a result, the spindle motor 2
By driving 5, the spindle 24 is rotated via the timing belt 70, and the tool 21 of the tool holder 29 attached to the tip of the spindle 24 can be rotated.

A rotary encoder 72 is attached to the side of the spindle 24. The rotary encoder 72 is for detecting the rotational position of the spindle 24. A timing pulley 73 is attached to the tip of the rotary shaft 72a of the rotary encoder 72. Between each timing pulley 73 and 67,
The timing belt 74 is wound around. By detecting the rotational position of the spindle 24 by the rotary encoder 72, the key groove in the tool mounting hole 24a of the spindle 24 and the key 39 of the tool holder 29 are aligned with each other.

In the spindle 24, there is formed a hole 24b which communicates with the tool mounting hole 24a and extends vertically. The rod 8 extending vertically in the hole 24b.
0 is inserted so that it can move up and down. The rod 80 has a hole 2
It is constantly urged upward by the spring force of the disc spring 81 stacked in 4b. In addition, the rod 8 is formed in the hole 24b.
A collet chuck 82 for gripping the head portion 29a of the tool holder 29 is mounted around the lower part of the 0. On the other hand, a cylinder 78 is arranged above the spindle 24. The piston rod 78a of the cylinder 78 can come into contact with the upper portion 80a of the rod 80. As a result, the piston rod 7 is driven by the drive of the cylinder 78.
8a pushes down the rod 80, and the grip of the tool holder 29 by the collet chuck 82 is released. The piston rod 7 is provided on the side of the cylinder 78.
A proximity switch 85 for detecting the vertical position of 8a is arranged.

Next, the operation will be described. At the time of punching, the carriage 7 and the cross slide 15 are held with the plate material W held by the work holders 11 and 12 (FIG. 1).
Respectively by moving in the X-axis and Y-axis directions,
The processing position of the plate material W is arranged at the processing center position P. By driving the punching section 17 from this state, the plate material W is punched.

When cutting the plate material W, first, the turret 22 (FIGS. 2 to 5) is rotated to perform desired cutting processing (drilling, tapping, end milling, etc.). Index the desired tool 21 to a position below the spindle 24. In this case, the pinion 41, the gear 40, and the bracket 36 are driven by driving the index motor 23.
The turret 22 is rotated via. At this time, the position of each station of the turret 22 is determined by the proximity switch (not shown) detecting the dog 42 attached to the output shaft 23a of the index motor 23.

Next, the cylinder 25 and the rodless cylinder 48 are driven to lower the piston rod 25a and the piston 52 (FIG. 6). As a result, the servo motor 26, the ball screw 57, the cylinder 78, and the spindle 24 are integrally lowered via the support member 51, and the spindle 24 approaches the indexed tool on the turret 22 side. Next, the servo motor 26 is driven to rotate the ball screw 57 via the timing pulleys 56 and 59 and the timing belt 60. This allows the ball screw 5
7 through the ball nut 62 screwed to the spindle 24
Gradually descends, and the tool mounting hole 2 at the bottom of the spindle 24
The tool holder head 29a is inserted into 4a (FIG. 7).
In this case, the rotary encoder 72 is previously driven to drive the key groove of the spindle 24 and the tool holder 29.
The key 39 on the side is aligned. The piston rod 78a is projected by the driving of the cylinder 78 and pushes down the upper end 80a of the rod 80, and the collet chuck 82 is in an open state. As a result, the tool holder 29 can be smoothly inserted into the tool mounting hole 24a of the spindle 24. After mounting the tool holder 29 in the tool mounting hole 24a, the cylinder 78 is driven to retract the piston rod 78a. As a result, the rod 80 is pushed up by the spring force of the disc spring 81, and the collet chuck 82 chucks the head portion 29a of the tool holder 29. At this time, the contact portion 34 at the tip of the piston rod is driven by the air cylinder 33 (FIG. 3) so that the tool grip portion 30 is
The contact with the claw member 31 is released and the grip by the claw member 31 is released. From this state, the spindle 24 is raised by driving the servo motor 26 in the opposite direction. As a result, the tool holder 29 chucked by the spindle 24 is disengaged from the tool grip portion 30.

Next, the turret 22 is rotated by driving the index motor 23, and the notch 22a (FIG. 4) of the turret 22 is arranged below the spindle 24.
On the other hand, by driving the carriage 7 and the cross slide 15, the cutting processing position of the plate material W is arranged below the spindle 24. From this state, spindle motor 2
7 drives the spindle 24 via the timing pulleys 69 and 68 and the timing belt 70, and the servomotor 26 drives the ball screw 57.
Is rotated to lower the spindle 24. As a result, the plate material W is subjected to desired cutting by the tool 21 mounted on the spindle 24. During the cutting process, the rotation speed of the spindle 24 (that is, the rotation speed of the spindle motor 27) and the feed amount of the spindle 24 (the rotation amount of the servo motor 26) are determined by the diameter of the tool 21 mounted on the spindle 24 and the tap. It is appropriately determined according to the screw pitch at the time of processing.

In the case of continuously performing the cutting process, the turret 22 is rotated by the drive of the index motor 23 to index the desired tool 21 and the tool 21 is mounted on the spindle 24 in the same manner as described above. To process. In this way, various types of cutting processes are continuously performed.

[0025]

In the punch press machine with a cutting device according to the present invention, since a turret having a plurality of stations for holding a cutting tool is provided, various cutting processes are performed in addition to punching. It is possible to diversify processing.

[Brief description of drawings]

FIG. 1 is a schematic plan view of a punch press machine according to an embodiment of the present invention.

FIG. 2 is a schematic front view of a cutting device.

FIG. 3 is a schematic view taken along the line III-III in FIG.

FIG. 4 is a schematic view taken along the line IV-IV in FIG.

5 is a schematic cross-sectional view taken along line VV of FIG.

FIG. 6 is a schematic configuration diagram of a lifting device portion of a spindle.

7 is a schematic sectional view taken along line VII-VII of FIG.

[Explanation of symbols]

 1 Punch Press Machine 20 Cutting Machine 22 Turret 24 Spindle 25 Cylinder 26 Servo Motor 27 Spindle Motor 48 Rodless Cylinder

[Procedure amendment]

[Submission date] May 20, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Claims

[Correction method] Change

[Correction content]

[Claims]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0005

[Correction method] Change

[Correction content]

[0005]

A punch press machine with a cutting apparatus according to the present invention controls a rotation drive unit for controlling a rotation speed of a spindle head on which a rotary cutting tool is mounted, and an ascending / descending speed of the spindle head. The cutting apparatus includes a lifting drive unit. Further, it may be provided with a rotatable turret having a plurality of holding parts for a cutting tool, and a spindle head having a chuck part for chucking the tool, wherein the elevating drive part is a servo motor. It may be configured to include a drive unit including a ball screw and a cylinder device that integrally lowers the drive unit and the spindle.

Claims (1)

[Claims] 1. A machining head for punching a plate material, a rotatable turret having a plurality of stations for holding a cutting tool for cutting the plate material, and a chuck for chucking the tool. A punch press machine with a cutting machine, comprising: a spindle head having a chuck portion, a rotary drive portion that rotates the spindle head at a predetermined speed, and an elevating drive portion that elevates and lowers the spindle head at a predetermined speed.