JP3195021B2 - Turret punch press die holder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a turret punch press die holder.

[0002]

2. Description of the Related Art Conventionally, when exchanging a punch and a die provided on the circumference of the upper and lower turrets of a turret punch press,
For example, there has been known a mold arm having a tool holding portion, in which a punch holder and a die holder on which a punch and a die are mounted are exchanged together.

[0003]

However, when exchanging a die holder with a punch holder having a punch and a die mounted on the upper and lower turrets of the conventional turret punch press described above, especially when exchanging the die holder. There is a problem that whisker-like chips, dust and the like generated at the time of the punching process from the upper portion fall on the sliding portion of the die holder, seize, cannot be inserted or removed, and hinder automatic operation.

[0004] An object of the present invention is to solve the above-mentioned problems, even if chips, dust, etc. enter the sliding portion of the die holder.
An object of the present invention is to provide a die holder for a turret punch press that discharges the above, eliminates the impossibility of insertion and removal, and improves workability.

[0005]

Means for Solving the Problems Conventional problems as described above
In view of the above, the present invention provides an upper saucer supporting a plurality of punches.
The unit is rotatable and supports the above punches.
A rotatable lower turret supporting multiple dies,
Up and down movement to strike the punch positioned at the processing position
And the work position
Tall equipped with a work positioning device capable of positioning the workpiece
In the die holder of the top punch press,
Die provided with die against die base
The holder can be removed in the radial direction of the lower turret.
And mounting the die holder on the die base.
Cleaning tool for cleaning the upper surface of the die base when
Is provided on the inner end side of the die holder and discharges dust and the like.
For providing an opening for the inner end of the die base
It is.

[0006]

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings. The turret punch press and the stocker accommodating a plurality of mold holders supporting the exchange punches and dies have a known configuration, and therefore, detailed illustration and description are omitted.

Referring to FIG. 7, the turret punch press 1 has a gate-shaped frame 3 on which rotatable upper and lower turrets 5 and 7 are supported. Pans P and dies D are mounted on the circumferences of the upper and lower turrets 5 and 7, respectively, at corresponding positions.

The upper and lower turrets 5 and 7 have a processing position 9 and a die changing position 11 for exchanging a punch P and a die D.
Is provided, and the frame 3 above the processing position 9 is provided.
In order to strike the punch P, a striker is provided so as to be vertically movable by a known driving device (not shown).

A center table 13 is fixedly arranged so as to surround the upper and lower turrets 5 and 7, and a front side table 1 is provided on both sides of the center table 13.
5. The rear side table 17 is disposed so as to be movable in the Y-axis direction (in FIG. 7, obliquely forward and backward). Front and rear side tables 1 over the center table 13
A carriage base 19 extending in the X-axis direction and movable in the Y-axis direction is provided at the left end of each of the carriage bases 5 and 17.

The carriage base 19 is provided with a carriage 21 movable in the X-axis direction. The carriage 21 is provided with a plurality of work clamps 23 for clamping the work W. Incidentally, carriage base 19 and carriage 21, already a ball screw is known, not shown, is moved by the servo motor, etc. in the Y-axis direction and X-axis direction, follower relative to the machining position 9
Workpiece movement positioning device that moves and positions the workpiece W
It is a well-known, well-known,
Description is omitted.

By moving the carriage base 19 together with the front and rear side tables 15 and 17 in the Y-axis direction and the carriage 21 in the X-axis direction, the work W clamped by the work clamp 23 is formed.
Moves in the X-axis and Y-axis directions, and the desired position of the work W is positioned at the processing position 9. When the desired position of the work W is positioned at the processing position 9, the upper and lower turrets 5 and 7 are rotated to index the desired punch P and die D at the processing position 9, and the punch is moved by the vertical movement of the striker. Punching is performed at a desired position of the work W in cooperation with the die P and the die D.

In the vicinity of the frame 3 in the turret punch press 1, for example, on the left side in FIG. 7, a stocker 27 accommodating a plurality of mold holders 25 supporting a replacement punch and a die is arranged. In the stocker 27, a stocker base 33 is rotatably mounted on a column 31 erected on a frame 29, and a plurality of the mold holders 25 are stored on the stocker base 33.

Between the stocker 27 and the mold exchanging position 11 of the turret punch press 1, there is provided an automatic mold exchanging device 35 which can reciprocate in the Y-axis direction. The traveling device 37, which is a part of the automatic die changing device 35, includes an upper frame 39U and a lower frame 39D extending in the Y-axis direction at upper and lower portions of a frame 39 equipped with the stocker 27.

In the upper and lower frames 39U and 39D,
A traveling block (not shown) is provided so as to be movable in the Y-axis direction, and a column 41 penetrating a rotary drive shaft (not shown) is fixed to the traveling block.

A punch exchanging hand 43 and a die exchanging hand 45 are mounted on the support 41 so as to freely rotate and move up and down, and the support 41 is a pinion fixed to upper and lower ends of a rotary drive shaft penetrating therethrough. (Not shown) are engaged with the upper and lower racks 47U and 47D provided horizontally on the upper and lower frames 39U and 39D in the Y-axis direction.

With the above configuration, when the pinion is rotated by a motor or the like (not shown), the pinion
Since it is engaged with U and 47D, it moves in the Y-axis direction. In this case, since the pinion is provided at the upper and lower ends of the rotary drive shaft, the rotary drive shaft can move in the Y-axis direction in synchronization with the vertical state. That is, the column 41 having the built-in rotary drive shaft is smoothly moved in the Y-axis direction.

A disk 49 is provided at the upper and lower ends of the column 41, and a cable 51 for running, a cable 53 for turning and a cable 55 for moving up and down are mounted on the disk 49. Die exchange hand 45
The wiring and the piping member to the electric equipment or the fluid working equipment provided in are connected.

The punch exchanging hand 43 and the die exchanging hand 45 mounted on the support 41 so as to be rotatable and vertically movable will be described in more detail.

Referring to FIG. 8, the support 41 has a spline groove 57 and a spiral groove 59 formed therein. The punch replacement hand 43 is inserted into the spline groove 57 and the spiral groove 59.
And the block 67 supporting the die arm 65 of the die exchange hand 45 is engaged. Each of the blocks 63 and 67 has a rotating electric motor 69.
And an electric motor 71 for raising and lowering are provided.
A motor 69 for rotation is mounted on the lower side, a motor 71 for raising and lowering is mounted on the upper side, and a motor 71 for lifting and lowering is mounted on the upper side of the block 67 and the motor 69 for rotation on the lower side.

A rotation transmission member is provided between the support shaft 41 and the output shafts of the rotating motor 69 and the elevating motor 71 for engaging with the spline groove 57 and the spiral groove 59 provided on the support column 41. This configuration is already known, and its illustration and detailed description are omitted. For example, the rotating electric motor 69
By rotating the gear fitted in the spline groove 57 of the support column 41 via the gear portion, the punch exchange hand 43
Alternatively, the die exchange hand 45 can be turned. Further, the column 4 is provided by the lifting / lowering motor 71 via a gear portion.
By rotating the ball nut mounted on the first spiral groove 59, the punch exchanging hand 43 or the die exchanging hand 4 is rotated.
5 can be freely moved up and down.

A fixed arm 73 constituting the punch arm 61 is fixed to the block 63 by a bolt or the like. A movable arm 75 is provided on the fixed arm 73 via a support member 77, and the movable arm 75 is movable by a minute amount. It has become. Further, a lock device 79 for fixing the fixed arm 73 and the movable arm 75 is provided.

Further, a punch P is provided at the tip of the movable arm 75.
A driving member 83 is provided for holding the gripping claw 81 in a gripping state or an open state. The hydraulically operated cylinder 8 serving as a driving source of the driving member 83 is provided.
5 is provided on the fixed arm 73. Further, a support plate 89 is fixed to the upper surface of a cover 87 that shields the drive member 83, and the vibration transmission member 9 is attached to the support plate 89.
A vibration generating device 95, such as an ultrasonic vibrator, composed of a vibration source 1 and a vibration source 93, is vertically provided on the center line of the punch P gripped by the gripping claw 81.

With the above configuration, when the punch exchange hand 43 replaces the punch mounted on the upper turret 5 of the turret punch press 1 or the punch P stored in the stocker 27, the rotation provided on the block 63 is performed. By driving the electric motor 69 and the elevating electric motor 71, the gripping claw 81 at the tip of the punch arm 61 is positioned at a position where the desired punch P can be gripped. Then, the mold holder 25 housed in the stocker 35 is drawn out to a position shown by a two-dot chain line in FIG. Cylinder 85
Is operated, the punch P is gripped by the gripping claw 81 via the driving member 83, and the lifting / lowering motor 71 is driven to drive the punch P
Is pulled upward. At this time, the punch P can be pulled out smoothly by operating the vibration generator 95 to apply vibration to the punch P. The position indicated by the two-dot chain line in FIG.

When the punch P is mounted on the upper turret 5 or the mold holder 25 provided on the stocker 27, the punch P gripped by the gripping claw 81 at the tip of the punch arm 61 is moved to a desired punch mounting hole position. The rotation motor 69 and the lift motor 71 are driven and positioned. Then, the lift motor 71 is driven to lower the punch arm 61. At this time, the vibration generator 95 is operated, and the punch P
Vibration can be applied for smooth mounting.

The block 67 includes a die arm 6.
5 is fixed by bolts or the like, and the movable arm 99 is provided on the fixed arm 97 with the support member 7 which is the same member as that provided on the punch arm 61.
7, the movable arm 99 is movable by a minute amount. The fixed arm 97 and the movable arm 99
Is provided with a lock device 79 for fixing the.

Furthermore, on the upper surface of the movable arm 99, a die holder mounted on the lower turret 7 and an access device 101 for pulling out the mold holder 25 mounted on the stocker 27.
Is provided, and the access device 101 is configured to move the access shaft 105 back and forth by the cylinder 103 which is operated by fluid pressure. Further, the die D pulled out by the access device 101 or the die D attached to the die holder 23 is stored in the temporary holding portion 107 provided in the movable arm 99. A die attachment / detachment device 113 including a cylinder 109 and a lower cylinder 111 is provided. The temporary holding unit 107
The die D stored in the die holder or the mold holder 2
3 is also performed by the die attaching / detaching device 113.

With the above configuration, the die exchange hand 45 uses the die D or the stocker 27 provided on the die holder on which the lower turret 7 of the turret punch press 1 is mounted.
Block D when replacing the die D stored in
The motor 69 for rotation and the motor 71 for raising / lowering provided in 7 are driven. Then, the input / output shaft 105 of the input / output device 101 provided on the movable arm 99 of the die arm 65 is positioned at the extraction position of the die holder 25 stored in the die holder or the stocker 27, and the cylinder 103 of the input / output device 101 is operated by a predetermined amount. Then, the die holder or the mold holder 25 is pulled out. The drawing position is a position indicated by a two-dot chain line in the drawing of FIG.

When the die holder or the mold holder 25 is pulled out, the upper cylinder 109 is operated to push out the die D into the temporary holding portion 107 provided on the movable arm 99 to push out the die D.
Is completed.

The die D is placed in a die holder or a mold holder 2.
5, the temporary holding unit 10 of the movable arm 99
7 into the mounting hole of the die holder drawn out from the lower turret 7 or the die holder 25 drawn out of the stocker base 33.
And the elevator motor 71 is driven for positioning. And
By operating the lower cylinder 111 provided on the movable arm 99, the die D stored in the temporary holding unit 107 is pushed up to the die holder or the mold holder 25 side to complete the mounting.

Next, the die holder 115 mounted on the lower turret 7 of the turret punch press 1, which is a main part of this embodiment, will be described in detail.

Referring to FIGS. 1 to 5, a number of die bases 117 are radially provided around the circumference of the lower turret 7.
A die holder 115 having a plurality of dies D is mounted on the die base 117. A protruding holding portion 121 is formed on the inner end side (the left side in FIGS. 1, 2 and 5) of the die holder 115, and the holding portion 121 serves as a cleaning tool 123, for example, a plate made of Teflon (registered trademark). Scraper is screw 12
5 is attached. Further, a holding block 127 engaging with the holding portion 121 is fixed to the die base 117 with bolts 129 and the like.
7 has an opening 131 for discharging chips, dust and the like.

At the outer end of the die holder 115, FIG.
As shown in FIG.
3 is attached, and this pin 133 is inserted into a lower portion of an engaging portion 135 which is a protrusion formed on the die base 117,
The die holder 115 is prevented from floating with respect to the die base 117. A cam 137 is rotatably mounted on the outer end side of the die holder 115.
7 are formed in the die base 117 by the eccentric portion 139.
1 can be freely inserted and removed. The cam 137
The access shaft 10 of the access device 101 of the die exchange hand 45
5, a slit 143 is formed so that a part of the locking member provided at the tip of the lever 5 can be freely engaged and disengaged.

Further, at the outer end side of the die holder 115, as shown in FIG.
7 are formed. Further, a projecting surface 149 is formed on the outer end side of the die base 117, and the projecting surface 149 is formed.
The protrusion 151 of the die holder 115 comes into contact with the base member to perform positioning. Note that reference numeral 153 is a lid, which is provided to facilitate processing. Reference numeral 155 denotes a die D
Are holes to be mounted, and reference numerals 157 and 159 are through holes for discharging the punched material at the time of punching.

The operation of the above configuration will be described with reference to FIG.

FIG. 6A shows a state in which the die holder 115 locked to the die base 117 is pulled out, which is exactly the same as the locked state described earlier with reference to FIG. In this state, the T-shaped locking member 161 provided at the tip of the access shaft 105 of the access device 101 of the die exchange hand 45 is
It is inserted into the insertion groove 145 provided in the die holder 115. At this time, the locking member 161 is also inserted into the slit 143 provided in the cam 137.

Next, as shown in FIG. 6 (B), the inserted access shaft 105 is rotated 90 ° to the left or right. By rotating the access shaft 105, the pin 163 provided on the locking member 161 enters the locking groove 147, and the eccentric portion 139 of the cam 137 is free from the groove 141.

In this state, as shown in FIG. 6C, the pin 163 provided on the locking member 161 is locked by the locking groove 147 by moving the access shaft 105 to the right in the drawing. Therefore, the die holder 115 can be protruded from the die base 117 by a predetermined amount, and the die D is exchanged. Note that the insertion and locking of the die holder 115 to the die base 117 can be performed by performing the above operation in reverse.

The operation as described above causes the die holder 11
In particular, when the die holder 115 is inserted into the die base 117, the cleaning tool 123 provided on the inner end side of the die holder 115 cleans the surface on which the die holder 115, which is the upper surface of the die base 117, slides. Inserted.

For this reason, even if the whisker-like chips and dust generated during the punching process fall on the sliding surface of the die base 117, they are scraped out by the cleaning tool 123 when the die holder 115 is inserted, and the inner end of the die base 117 is removed. Chips, dust and the like are discharged from the opening 131 formed on the side.

Thus, the die holder 115 and the die base 1
17 can prevent seizure due to chips, dust and the like, eliminate inability to insert and remove, and improve workability.

The present invention is not limited to the above-described embodiments, but can be embodied in other forms by making appropriate changes.

[0043]

As will be understood from the above description of the embodiments, in the present invention, a turret punch press is used.
Die base 117 provided on the upper surface of lower turret 7
The die holder 115 having the die D
The turret 7 is attached and detached in the radial direction.
When attaching the solder 115 to the die base 117,
A cleaning tool 123 for cleaning the upper surface of the base 117
The die base 11 is provided on the inner end side of the holder 115.
An opening 131 for discharging dust etc. is provided at the inner end of
Because of the digitized configuration, the die base 117
Each time the attachment and detachment of the solder 115 are repeated, the die base 117
The upper surface is to be cleaned by the cleaning tool 123,
Then, dust and the like are discharged from the opening 131,
Always slide the die holder 115 smoothly against the base 117
It can be moved and attached and detached.
Sometimes it can solve the problem.

[0044]

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a main part of the present invention and incorporating a die holder into a die base.

FIG. 2 is a plan view of FIG.

FIG. 3 is a side view as viewed from the right side in FIG. 1;

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

FIG. 5 is a sectional view taken along line VV in FIG. 1;

FIG. 6 is an explanatory diagram of an operation when the die holder is pulled out from the die base.

FIG. 7 is a perspective view of a turret punch press and a stocker in which an automatic die changing device is provided in a reciprocating manner according to an embodiment of the present invention.

FIG. 8 is a side view showing a punch exchanging hand and a die exchanging hand of the automatic die changing apparatus.

[Explanation of symbols]

 1 Turret Punch Press 115 Die Holder 117 Die Base 123 Cleaning Tool 131 Opening

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-56-119631 (JP, A) JP-A-62-248523 (JP, A) JP-A 3-47633 (JP, U) JP-A 64-64 27130 (JP, U) Japanese Utility Model 4-104229 (JP, U) Japanese Utility Model 5-24322 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B21D 37/14 B21D 28 / 36 B21D 37/00

Claims (1)

(57) [Claims] 1. An upper saucer supporting a plurality of punches (P).
(5) is rotatably provided and each of the above punches
Lower sauce supporting multiple dies (D) corresponding to (P)
(7) is rotatable and positioned at the processing position (9)
Vertical strike that strikes the punch (P)
And a workpiece (W) with respect to the machining position.
Turret pallet with work positioning device that can be positioned freely
In the die holder of the multi-press, the lower turret is
With respect to the die base (117) provided on the upper surface of (7),
A die holder (115) having a die (D) is placed in the lower part.
The turret (7) is provided detachably in the radial direction, and the die
Place the die holder (115) against the base (117)
Clean the upper surface of the die base (117) when installing
Cleaning tool (123) for cleaning the die holder (11).
5) An opening provided at the inner end side for discharging dust etc.
Part (131) is provided on the inner end side of the die base (117).
Die holder of turret punch press, characterized in that digit.