JPH0957366A - Aligning method for punch supporting member with die supporting member in punching machine and its device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the weight of an aligning device, to facilitate the work and to realize the highly precise alignment. SOLUTION: An aligning device 109 is fitted to an upper turret 49 at the punching position, a detector 119 for detecting the misalignment is moved in the vertical direction, the distance between a punch fitting hole 111 and the inner circumferential surface of a die fitting hole 113 which are formed in the upper and lower turrets 49, 51 is detected, the distance is read by an indicator 121 to understand the misalignment, and the position of the upper turret 49 or the lower turret 51 is corrected. The weight of the aligning device 109 is reduced, the aligning work is facilitated, and the highly precise aligning work is realized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a centering method and apparatus for a punch support member and a die support member in a punching machine.

[0002]

2. Description of the Related Art Conventionally, in a turret punch press as a punching machine, when centering the upper and lower turrets, the upper and lower turrets are first aligned in parallel and then a centering jig is used. Centering at each position of the upper and lower turrets. Generally, the above two steps are performed.

[0003]

By the way, in the centering work of the upper and lower turrets provided in the above-mentioned conventional turret punch press, the centering jig is heavy (about 10 kg), and it is difficult to put it in and out. There was a problem. Further, in the turret punch press, since the die replacement position and the punching position are different, there is a problem that the centering work takes time. Further, when the core is not centered, the centering jig does not move and it is difficult to remove the centering jig.

An object of the present invention is to reduce the weight of the centering device, facilitate the work, and perform the centering with high accuracy. To provide a device.

[0005]

In order to achieve the above object, a method of centering a punch support member and a die support member in a punching machine of the present invention according to claim 1 is a punch support member and a die provided in the punching machine. The centering device is inserted into the punch mounting hole and the die mounting hole formed in the supporting member at the punching processing position, the centering device is positioned on the punch supporting member or the die supporting member, and the centering device is formed. The detector for detecting misalignment, which is provided at the center, is moved up and down, and the distance between this detector and the inner circumference of the punch mounting hole and die mounting hole is detected. It is characterized in that the position of the member or the die supporting member is corrected.

Further, the centering device for the punch support member and the die support member in the punching machine of the present invention according to claim 2 processes the plate material in cooperation with the punch support member supporting the punch and the punch. A die supporting member supporting a die, and a punching machine including: a punch mounting hole formed in the punch supporting member; and a centering device positioned through the die mounting hole formed in the die supporting member. A detector for measuring the distance between the punch mounting hole and the inner peripheral surface of the die mounting hole is movably provided in the centering device in the vertical direction, and a display device for displaying a detection value detected by the detector. Is provided.

In the centering method of the punch supporting member and the die supporting member in the punching machine and the apparatus therefor according to claims 1 and 2, the detector provided in the centering device is vertically moved to form the punch supporting member. The values on the inner peripheral surface of the punch mounting hole and the die mounting hole formed in the die supporting member are read, and the difference becomes the misalignment amount to correct the position of the punch supporting member or the die supporting member.

Therefore, the centering device can be reduced in weight, the centering work can be facilitated, and the centering work can be performed with high accuracy.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. A turret punch press as a punching machine will be described.

Referring to FIGS. 5, 6 and 7, the turret punch press 1 is provided with a common base 3, and a gate-shaped main body frame 5 is erected on the common base 3. The main body frame 5 includes an upper frame 5U having an opening 7 and a lower frame 5D. A disk support 9 that receives the force of the press is provided at the processing position on the lower frame 5D.

The upper frame 5U of the main body frame 5 is provided with a hydraulic cylinder for moving the ram 11 up and down, or a drive device 13 including a crank drive or a servo drive. A striker 15 is provided below the ram 11. Moreover, the ram 11 is slidably slid in the Z-axis direction (vertical direction in FIGS. 5 and 6) by being guided by the ram guide member 17 attached to the upper frame 5U.

With the above structure, when the driving device 13 is driven, the ram 11 is guided by the ram guide member 17 and Z
Since it moves in the axial direction, the striker 15 is moved up and down.

A plurality of brackets 19 are attached to the lower frame 5D of the main body frame 5 extending in the Z-axis direction at appropriate intervals in the Y-axis direction (left and right directions in FIGS. 6 and 7). A support frame 21 is provided on the plurality of brackets 19. A work table 25 is attached to each of the support frames 21 via a plurality of balls 23.
The side table 25S is provided so as to be movable in the Y-axis direction. The work table 25 has side tables 25S on both sides of a fixed center table 25C.

A carriage base 29 of the plate material movement positioning device 27 is provided on the left side of the work table 25 in FIG. This carriage base 2
A rotatable ball screw 31 extending in the X-axis direction (horizontal direction in FIG. 5, vertical direction in FIG. 7) is supported on the shaft 9. The ball screw 31 is provided with a carriage 33 movable in the X-axis direction via a nut member. Moreover, the carriage 33 is provided with a plurality of work clamps 35 for clamping the plate material W.

An X-axis motor 37 is provided below the carriage base 29 as shown in FIG. 7, and a drive pulley 39 is attached to the output shaft of the X-axis motor 37. On the other hand, a driven pulley 41 is attached to one end of the ball screw 31, and a timing belt 43 is wound around the driven pulley 41 and the drive pulley 39.

With the above structure, when the Y-axis drive motor (not shown) is driven, the side table 25S is moved in the Y-axis direction via the carriage base 29 and the balls 23 supported by the support frame 21. It will be.
When the X-axis drive motor 37 is driven, the carriage 33 is moved in the X-axis direction. Therefore, the plate material W clamped by the work clamp 35 is X,
The plate W is moved in the Y-axis direction, and the desired position of the plate W is positioned at the processing position below the striker 15.

A sub-frame 45 adjacent to the body frame 5 is erected on the common base 3. The sub frame 45 is an upper frame 45U and a lower frame 45.
It has a C-shaped structure made of D. For example, a rectangular upper turret 49 rotatable via an upper rotary shaft 47U is provided below the upper frame 45U. For example, a long turret 49 which is rotatable via a lower rotary shaft 47D is provided above the lower frame 45D. A rectangular lower turret 51 is respectively supported.

Punches P are provided on both sides of the upper turret 49.
The punch holder PH in which the die D is attached is detachably attached, and the die holder DH in which the die D is attached at a position corresponding to the punch P is detachably attached on both sides of the lower turret 51. In addition, inside the upper and lower frames 45U and 45D, rotation driving means for rotating the upper and lower rotating shafts 47U and 47D are provided on both left and right sides in FIG.

A side portion of the lower turret 51 is provided with a semi-arcuate auxiliary table 55 having a supporting member 53 such as a brush for supporting the plate material W, as shown in FIG. Therefore, the downward forming process can be performed, and the scratches generated on the plate material W when the lower turret 51 rotates can be reduced.

With the above construction, the upper and lower rotary shafts 47U,
By the rotation of 47D, the upper and lower turrets 49, 51 are indexed, and the selected punch P and die D are positioned at the processing position. Then, as the striker 15 moves up and down, the punch P and the die D cooperate with each other to punch the plate W at a desired position.

As described above, the punching process is performed by the operation of the vertically movable ram 11, and the heat generated by the operation at this time extends from the upper frame 5U portion to the upper frame 45U portion of the sub-frame 45. Is released without conducting heat. That is, the upper and lower turrets 49 and 51 are connected to the upper and lower frames 4 of the subframe 45, respectively.
5U, 45D, the thermal displacement occurring in the upper and lower turrets 49, 51 is lower than that of the upper and lower turrets 4.
It can be maintained only by the heat of rotation of 9, 51, and is not greatly affected by the heat generated by the ram 51 such as misalignment.

Adjacent to the left side of the upper and lower frames 45U, 45D of the sub-frame 45 in FIG. 5, a punch holder magazine 57 supporting a punch P to be detachably attached to the upper turret 49 and a lower turret. 51
And a die holder magazine 59 that supports a die D to be detached and replaced. The upper turret 49
As shown in FIG. 5, the punch attaching / detaching / changing position PT is located below the punch holder magazine 57, and the die attaching / detaching / changing position DT of the lower turret 51 is also shown in FIG. On the die exchanging device 61 so as to be located above the die holder magazine 59,
Lower die changing devices 61U and 61D are arranged in the vertical direction of the punch and die changing positions PT and DT.

The punch and die holder magazines 57, 5
9 are arranged to face each other in the vertical direction, and endless chain members 63 and 65 are wound around a drive sprocket 67 and a driven sprocket 69 as shown in FIG. Drive motors 71 and 73 such as servo motors are connected to the drive sprocket 67 in an interlocked manner. A plurality of endlessly-mounted clamp claws 75 and 77 for clamping the punches and die holders PH and DH are attached to the chain members 63 and 65, respectively.

Chuck pawls 79 and 81 for clamping the punch and die holders PH and DH are provided below the upper and lower mold exchanging devices 61U and 61D. The upper and lower mold exchanging devices 61U and 61 are driven by drive motors 83 and 85 for changers such as servomotors mounted on the upper and lower frames 45U and 45D of the subframe 45.
D is moved up and down.

With the above construction, while the punch P and the die D cooperate with each other at the processing position to perform the punching process on the plate material W, at the punch / die attachment / detachment exchange positions PT and DT,
The upper and lower mold exchanging devices 61U and 61D are driven by the drive motor 83,
The upper and lower turrets 49, 5 are moved up and down by 85.
The punches and die holders PH and DH mounted on 1 are pulled out with the chuck claws 79 and 81 and mounted on the punch and die holder magazines 57 and 59. Next, the punches and the die holders PH and DH are chucked to the chuck claws 79 and 81 from the clamp claws 75 and 77 of the punch and die holder magazines 57 and 59.
And then attach it to the upper and lower turrets 49 and 51.
By performing this series of operations, the upper and lower mold exchanging devices 61U, 61 are moved between the punch / die attaching / detaching / changing positions PT, DT and the punch / die holder magazines 57, 59.
Since the punch and the die holders PH and DH can be directly exchanged by the linear movement of D in the vertical direction, the setup and exchange time can be shortened as compared with the conventional case. Therefore, it is possible to handle high-mix low-volume production and flexible automation, and it is possible to perform unmanned operation.

The punch and die holder magazines 57, 5
In the exchange position of 9, as shown in FIGS. 6 and 7,
An ordinary mold changing device 87 composed of two arms and a tooling tower 89 which are already known are arranged. The mold exchanging device 87 has a clamp claw 9 at the tip of two arms 91.
3 is attached and can rotate 90, 180 degrees.
Since the structure is already known, detailed description is omitted. The tooling tower 89 also has a cylindrical member 95.
A plurality of clamp claws 97 are provided on the outer periphery of the punch, and punches and die holders PH and DH are clamped to the clamp claws 97. The cylindrical member 95 is rotatable and vertically movable. That is, the cylindrical member 95 is moved up and down by the operation of the fluid cylinder 99, and
1 drive pulley 103, timing belt 1
05, the driven pulley 107 is rotated. Therefore, the punch and die holder magazine 5
The die and die holders PH and DH are exchanged between the die 7 and the tooling tower 89 by the mold exchanging device 87.

Next, the centering device for correcting the misalignment of the upper and lower turrets 49 and 51, which is the main part of the embodiment of the present invention, will be described in detail.

Referring to FIGS. 1, 2 and 3, the centering device 109 includes an upper turret 4 which is a punch supporting member.
9 and the die mounting hole 111 and the die mounting hole 113 formed in the lower turret 51, which is a die supporting member, are inserted and mounted at the punching processing position.

Although details of the centering device 109 are omitted, the ball spline 11 is manually driven by a driving member or manually.
5 is provided with a bearing 117, a detector 119 provided with a detection unit 119K is attached to the bearing 117, and a display device 121 for displaying a detection value detected by the detector 119 is provided, and a core is provided. Output device 109
Is composed. A ball bearing or the like may be used instead of the ball spline 115.
The means for displaying can be digital or analog.

A base plate 123 is integrally provided on the upper end of the ball spline 115.
A plurality of positioning pins 125 that are positioned with high accuracy are provided vertically, and a plurality of positioning holes 127 into which the positioning pins 125 are fitted are also provided in the upper turret 49 which is a punch supporting member as a counterpart. Is processed with high precision.

Further, a flange 131 is integrally formed on the upper end of a shaft 129 which is a member constituting an upper rotary shaft 47U for supporting the upper turret 49, and the flange 13 is integrally formed.
1 is connected to the upper rotary shaft 47U by a plurality of fastening members 133. The upper rotary shaft 47U is mounted on the upper frame 5U via a bearing member 135 such as a bearing. Although not shown, the upper rotary shaft 47U is rotated by a drive source via a rotation transmission member. Further, the hole 137 into which the fastening member 133 is inserted is formed to be slightly larger than the outer diameter of the fastening member 135.

With the above configuration, the operation is as shown in FIG.
Referring also to, the punch mounting holes 111 and the die mounting holes 113 formed in the upper turret 49 and the lower turret 51 are also referred to.
The centering device 109 is inserted therein, and the positioning pin 125 provided on the base plate 123 is inserted into the positioning hole 127 provided on the upper turret 49 to position the centering device 109. Then, a detector 119 attached to a bearing 117 running vertically on the ball spline 115.
Of the punch mounting hole 111 and the die mounting hole 113 are arranged close to each other.
11 and the die mounting hole 113 are run up and down on the circumferential surface.

When the detector 119K of the detector 119 moves, the value is displayed on the display device 121 connected to the detector 119. That is, as shown in FIG. 4, it is possible to know the distances δ1 and δ0 between the tip of the detector 119K provided in the detector 119 and the punch mounting hole 111 and the die mounting hole 113. Since the difference becomes the misalignment amount, the position is corrected so that this misalignment amount becomes zero (δ1 = δ0).

This position correction is performed by the flange 131 provided on the shaft 129 supporting the upper turret 49 and the upper rotary shaft 47.
It is connected to U by a fastening member 133.
3 and the hole 137 formed in the flange 131, there is a slight amount of gap, so that the upper turret 49 can be adjusted by slightly shifting according to the detected shift amount.

Thus, since centering without any misalignment is possible, and the centering device 109 is lightweight,
The conventional centering jig is heavy and requires heavy force, but in this example, it is possible to perform light and smooth movements and perform highly accurate centering work. Further, since it is different from the conventional work of moving the centering jig to the punching position after inserting the centering jig at the die replacement position, it is possible to save the process and time.

The present invention is not limited to the above-described embodiments of the invention, but can be implemented in other modes by making appropriate changes. For example, the centering device 109 shown in the example of the present embodiment is attached to the upper turret 49, and its position adjustment is performed by the upper turret 4.
Although it is performed by moving 9, the centering device 109 can be attached to the lower turret 51 and its position can be adjusted by the lower turret 51. In addition, the detector 119
Is a non-contact type, but a contact type is also possible.

[0037]

As can be understood from the above description of the embodiments, the present invention according to claims 1 and 2 provides punch mounting holes and dies formed in the punch supporting member and the die supporting member. The centering device is inserted and positioned in the mounting hole at the punching processing position, and the detector provided in the centering device corrects the displacement amount between the punch mounting hole and the die mounting hole on the display device.

Thus, it is possible to reduce the weight of the centering device and to facilitate the workability, and to perform the centering work with high accuracy.

[Brief description of drawings]

FIG. 1 is a perspective view showing a main part of the present invention and is a perspective view of a centering device mounted on upper and lower turrets.

FIG. 2 is a front view of the centering device mounted on the upper and lower turret of the present invention.

FIG. 3 is a perspective explanatory view of the centering device of the present invention.

FIG. 4 is a diagram illustrating the operation of the present invention.

FIG. 5 shows an example of an embodiment for carrying out the present invention,
It is a side view of a turret punch press provided with a mold exchanging device.

FIG. 6 is a front view of FIG.

FIG. 7 is a plan view of FIG.

[Explanation of symbols]

 1 Turret Punch Press (Punching Machine) 49 Upper Turret (Punch Support Member) 51 Lower Turret (Die Support Member) 109 Centering Device 111 Punch Mounting Hole 113 Die Mounting Hole 119 Detector 121 Display Device P Punch D Die

Claims (2)

[Claims] 1. A centering device is inserted at a punching processing position into a punch mounting hole and a die mounting hole formed in a punch supporting member and a die supporting member provided in a punching machine, and the centering device is used as the centering device. Positioning is performed on the punch support member or the die support member, and the detector for detecting the misalignment provided in the centering device is moved in the vertical direction, so that the detector and the punch mounting hole, the inner periphery of the die mounting hole, Detect the distance,
A centering method for a punch support member and a die support member in a punching machine, characterized in that the distance is read by a display device and the position of the punch support member or the die support member is corrected. 2. A punching machine provided with a punch support member supporting a punch and a die support member supporting a die for working a plate material in cooperation with the punch, which is formed on the punch support member. A centering device is provided that is inserted and positioned in the punch mounting hole and the die mounting hole formed in the die supporting member, and the centering device vertically extends the distance between the punch mounting hole and the inner peripheral surface of the die mounting hole. Centering of a punch support member and a die support member in a punching machine, characterized in that a detector for measuring the pressure is movably provided and a display device for displaying a detection value detected by the detector is provided. apparatus.