JPH1133650A - Moving device for clamp and die - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve productivity by moving a clamp with decelerating when a moving distance of a clamp is smaller than a moving distance of a die and positioning the clamp and the die to a moving destination so as to shorten a moving time of the clamp and reduce a working time. SOLUTION: A clamp 25 to hold a work W is mounted movable in the X axis direction. A die 26 consisting of a punch and the die is mounted movable in the Y axis direction. Further, a clamp avoidance region is provided. In the case the clamp 25 as well as moving destinations X1 , Y1 of the die 26 are both positioned in the clamp avoidance region 21, further when a moving distances (X1 -X) of the clamp 25 is larger than a moving distance (Y1 -Ya ) of the die 26, the clamp 25 is retreated outside the clamp avoidance region 21, when a moving distances (X1 -X) of the clamp 25 is smaller than a moving distance (Y1 -Ya ) of the die 26, by decelerating and moving the clamp 25, the clamp 25 and the die 26 are positioned to the moving destinations (X1 , Y1 ).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for moving a clamp and a mold, and more particularly, to temporarily retract a mold outside a clamp avoidance area and move the clamp without decelerating as much as possible. The present invention relates to a clamp and a mold moving device which are shortened and reduce the number of avoidance operations of the clamp with respect to the mold.

[0002]

2. Description of the Related Art A conventional plate material processing machine having a clamp avoiding area has, for example, the structure shown in FIG.
Is controlled by the NC device 60 connected via the.

A plate processing machine 40 shown in FIG. 7 is mounted on a carriage 44, and a clamp 48 for gripping a work W
A clamp 1 shaft that moves in the axial direction and orthogonally to the die 47, which includes a punch P provided on the bunch holder 51 and a die D provided on the die holder 52, moves together with the ram cylinder 50 in the Y-axis direction. -It is a punch press of a single axis type.

When viewed from above (upper view in FIG. 7), the sheet processing machine 40 has a space between the front table 53 and the rear table 58.
An upper Y-axis ball screw 46 connected to the Y-axis motor My, and a lower Y-axis ball screw 57 connected to the upper Y-axis ball screw 46 via a timing belt 56 are arranged.

A punch holder 51 is screwed into the upper Y-axis ball screw 46, and a punch P
And a ram cylinder 50 for pressing the punch P, and the punch holder 51 is slidably connected to the upper Y-axis LM guide 49.

A die holder 52 is screwed to the lower Y-axis ball screw 57, and a die D is provided on the die holder 52. The die holder 52 is slidably connected to the lower Y-axis LM guide 54. doing.

Therefore, with this configuration, the Y-axis motor My
Is driven, the upper Y-axis ball screw 46 and the lower Y-axis ball screw 57 rotate synchronously, and can move the mold 47 in the Y-axis direction.

The plate material processing machine 40 includes the above-described mold 47.
The X-axis ball screw 42 coupled to the X-axis motor Mx is disposed orthogonally to the moving direction of the X-axis motor Mx, and the X-axis ball screw 42 is engaged with a carriage 44.
A clamp 48 for gripping the work W is mounted, and the carriage 44 is slidably connected to an X-axis LM guide 55.

Therefore, with this configuration, the X-axis motor Mx
Is driven, the X-axis ball screw 42 rotates to move the carriage 44 in the X-axis direction, and accordingly, the clamp 48 can also move in the X-axis direction.

On the other hand, the plate material processing machine 40 is provided with a clamp avoiding area 41 in which the mold 47 and the clamp 48 come close to each other. When the mold 47 enters the clamp avoiding area 41, When the deceleration sensor 45 is turned on and the clamp 48 enters the clamp avoidance area 41, the clamp avoidance sensor 43 is turned on.

Then, usually, the clamp 48 and the mold 47
Moves as shown in FIG. 8 at the feed speeds V _OX and V _OY , respectively. When the mold 47 enters the clamp avoidance area 41, both the clamps 48 and the mold 47 decelerate at speeds V _GX and V _GX .
Move by _GY and perform clamp avoidance operation.

[0012]

In the above prior art (FIGS. 7 and 8), when the clamp 48 and the mold 47 are both located in the clamp avoidance area 41 (FIG. 8), There are the following issues.

(1) Since the processing time is long, the productivity is lowered, and since the operation is slow, the agility is also lowered. That is, when the moving distance of the clamp 48 in the X-axis direction is longer than the moving distance of the mold 47 in the Y-axis direction, as described above,
Since the clamp 48 is moving at the deceleration speed V _GX (FIG. 8), it takes time to move.

For this reason, the processing time of the work W by the mold 47 is lengthened, and the productivity is reduced.

Further, the long moving time of the clamp 48 means that the operation of the sheet material processing machine 40 is slow, and the agility is reduced.

(2) Since the number of clamp avoiding operations of the clamp 48 is increased, the processing accuracy is reduced, the maintainability is reduced, and the cost is increased.

That is, the clamp 4 holding the work W
Numeral 8 (FIG. 9A), for example, according to the configuration described in Japanese Patent Application Laid-Open No. Hei 7-100562, when the user gets on the die D, automatically releases the work W and retreats backward (FIG. 9B). ,
This prevents the mold 47 from being broken by punching out the clamp 48. Then, when the clamp 48 comes off the die D, it returns to the original position and the work W
(FIG. 9C).

However, the mold 2 of such a clamp 25
The avoidance operation for the clamp 6 is performed in the same manner as in (1).
When the moving distance in the X-axis direction is longer than the moving distance in the Y-axis direction of the mold 47, the number of times is further increased.

On the other hand, the work W generally expands and contracts due to processing, and is distorted by warping or the like.

Therefore, when the clamp 48 once avoids the mold 47 (FIG. 9B) and grips the work W again (FIG. 9C), uncertainties such as expansion and contraction and distortion of the work W are caused. The gripping position is slightly changed depending on the element, and the processing accuracy is deteriorated.

Further, when the number of times of the clamp avoidance operation is increased, the parts and power of the plate material processing machine 40 are further consumed, so that the maintainability is reduced and the cost is increased.

An object of the present invention is to reduce the moving time of the clamp by shortening the moving time of the clamp by retracting the mold once out of the clamp avoidance area and moving the clamp without decelerating as much as possible. An object of the present invention is to improve productivity and speed up the operation to improve agility, to reduce the number of operations of avoiding clamping, to improve machining accuracy, to improve maintainability, and to reduce costs.

[0023]

In order to solve the above-mentioned problems, according to the present invention, a clamp 25 for gripping a workpiece W is mounted so as to be movable in the X-axis direction and a punch P
In a sheet material processing machine having a die 26 composed of a die D and a die D movably mounted in the Y-axis direction and having a clamp avoidance area 21, the movement destinations of the clamp 25 and the die 26 (X ₁ ,
Y ₁ ) are both located in the clamp avoidance area 21 and the moving distance | X ₁ -X | of the clamp 25 is larger than the moving distance | Y ₁ -Y _a | of the mold 26, With the mold 26 retracted out of the clamp avoidance area 21,
The clamp 25 is moved without deceleration, and the moving distance | X ₁ -X | of the clamp 25 becomes the moving distance | Y ₁ -Y of the mold 26.
_{When a} | is smaller than |, the clamp 25 and the mold 26 are positioned at the movement destination (X ₁ , Y ₁ ) by moving the clamp 25 at a reduced speed.

Therefore, according to the structure of the present invention, the mold 26
In the clamp avoidance area 21 as much as possible, and the distance at which the clamp 25 moves at a reduced speed is shortened.

For this reason, the present invention moves the clamp without deceleration as much as possible, thereby shortening the moving time of the clamp, shortening the machining time and improving the productivity, and speeding up the operation to increase the agility. In order to improve the maintainability, reduce the number of clamping avoidance operations, improve the processing accuracy, improve the maintainability and reduce the cost,
Works.

[0026]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings according to embodiments. FIG. 1 is a diagram showing an embodiment of the present invention.

The apparatus shown in FIG. 1 includes a plate processing machine 2 and an NC apparatus 1.

The plate processing machine 1 has the same construction as the conventional one, and when viewed from above (FIG. 1), an upper Y-axis ball screw 28 coupled to a Y-axis motor My is arranged in the Y-axis direction. ,
As described above, by cooperation of the upper Y-axis ball screw 28 and the lower Y-axis ball screw (not shown) that rotates synchronously,
A mold 26 composed of a punch P (not shown) and a die D (not shown) moves in the Y-axis direction.

An X-axis ball screw 27 connected to the X-axis motor Mx is arranged orthogonally to the moving direction of the mold 26.
A carriage 24 is screwed into the X-axis ball screw 27,
A clamp 25 for gripping the work W is mounted on the carriage 24, whereby the clamp 25 moves in the X-axis direction.

Further, the plate material processing machine 2 is provided with a clamp avoidance area 21, and a deceleration sensor 22 and a clamp avoidance sensor 23 having the same functions as described above are provided. In this case, as shown in FIG. 2, the positional relationship between the clamp 25 and the mold 26 with respect to the clamp avoidance area 21 is roughly divided into four (FIGS. 3 to 6), and is finely divided into seven (〜).

On the other hand, the NC device 1 is connected to the plate processing machine 2 and controls the plate processing machine 2.

That is, the NC device 1 has a data storage unit 1A, and the data storage unit 1A has a clamp 25 and a mold 2
6, its start point coordinates (X ₀ , Y ₀ ), end point coordinates (X ₁ , Y ₁ ), current coordinates (X, Y), clamp retract Y
Coordinates Y _a , feed rates V _OX , V _OY , deceleration rates V _GX , V
_GY are stored respectively.

[0033] clamping retracted Y coordinate Y _a is precisely, an outer deceleration sensor 22 (FIG. 1), the deceleration sensor 2
2 is set in the vicinity, when the mold 26 is positioned on the clamp retracted Y coordinate Y _a would have been saved on the outer clamp avoidance region 21.

The NC device 1 also receives the deceleration sensor signal S1 from the deceleration sensor 22 of the plate material processing machine 2, the clamp avoidance sensor signal S2 from the clamp avoidance sensor 23, the X-axis current position signal S3 from the X-axis motor Mx, A Y-axis current position signal S5 is input from the Y-axis motor My, and an X-axis servo signal S4 is output to the X-axis motor Mx, and a Y-axis servo signal S6 is output to the Y-axis motor My.

Thus, the NC device 1 controls the operations shown in FIGS.

Hereinafter, the operation of the present invention having the above configuration will be described.
This will be described with reference to FIGS.

(1) Operation when the starting point Y _{0 of the} mold 26 is outside the clamp avoidance area 21

When the end point Y _{1 of the} mold 26 is also outside the clamp avoidance area 21 (FIGS. 2 and 3). First, in step 101 of FIG. 3, NC apparatus 1, the starting point Y ₀ of the mold 26 which is stored in the data storage unit 1A, comparing the clamp retracted Y coordinate Y _a, is larger for the starting point Y ₀ If (YES), the process proceeds to step 102, and if the starting point Y ₀ is smaller (NO), the process proceeds to step 117 (FIG. 4).

[0039] If the process proceeds to step 102, NC device 1 includes the end point Y ₁ of the mold 26 which is stored in the data storage unit 1A, comparing the clamp retracted Y coordinate Y _a, the end point Y
The greater the direction of ₁ (YES), the process proceeds to step 103, if is smaller end point Y ₁ (NO), Step 10
Go to 5.

When proceeding to step 103, the NC device 1 transmits the X-axis servo signal S4 to the X-axis motor Mx and the Y-axis servo signal S6 to the Y-axis motor My,
End point (X ₁ , Y ₁ ) with respect to clamp 25 and mold 26
A move command is issued to move to. In this case, the moving speeds of the clamp 25 and the mold 26 are the feed speeds V _OX and V _OY stored in advance in the data storage unit 1A, and the clamp speed 25 and the mold 26 are determined by the feed speeds V _OX and V _OY. Moves to the end point (X ₁ , Y ₁ ).

Next, in step 104, the NC device 1 outputs the X-axis current position signal S3 from the X-axis motor Mx.
When the Y-axis current position signal S5 is received from the Y-axis motor My, it is compared with the end point coordinates (X ₁ , Y ₁ ) stored in the data storage unit 1A, and when it is determined that the movement is completed, YES), the operation ends.

In this case, since both the starting point X ₀ and the ending point Y _{1 of the} mold 26 are outside the clamp avoidance area 21, regardless of the positional relationship between the clamp 25 and the mold 26,
Both are not decelerated, but are moved to the end points (X ₁ , Y ₁ ) and positioned by the feed speeds V _OX and V _OY stored in the data storage section 1A in advance (steps 103 and 104).

The end point Y _{1 of the} mold 26 is within the clamp avoidance area 21 and the moving distance | X _{1 of the} clamp 25
-X ₀ | is larger than the movement distance | Y ₁ -Y _a | of the mold 26 (FIGS. 2 and 3).

In step 105, the NC apparatus 1
Moving distance from start point to end point of clamp 25 | X ₁ -X
₀ | a, the end point Y from the clamping evacuation Y coordinate Y _a mold 26
Travel Distance of ₁ | Y ₁ -Y _a | compared to the clamp 2
If the moving distance | X ₁ −X ₀ | of 5 is larger (YE
S), proceed to step 106; if smaller, step 1
Proceed to 13.

When the process proceeds to step 106, the NC device 1 transmits the X-axis servo signal S4 to the X-axis motor Mx and the Y-axis servo signal S6 to the Y-axis motor My, thereby causing the clamp 25 and the mold to move. against _{26, (X 1, Y a} )
A move command is issued to move to. That is, the NC device 1
The clamp 25 is moved to the end point X _1, as the mold 26 is moved to the clamp retracted Y coordinate Y _a prior endpoint Y _1, issues a move command.

Then, in step 107, the mold 2
6 determines whether to complete the move to the clamp retracted Y coordinate Y _a, in the case of moving completed (YES), Step 10
In 8, to continue to move to the end point X ₁ of the clamp 25, temporarily stopped the mold 26 to clamp retracted Y coordinate Y _a.

The moving speeds of the clamp 25 and the mold 26 in steps 106 to 108 are determined by the feed speeds V _OX and V _{OX.
It's an OY} and hasn't slowed down yet.

[0048] Then, in step 109, NC device 1 from the current position of the clamp 25 remaining travel distance to the end point | X ₁ -X | a, from the clamp retracted Y coordinate Y _a mold 26 to the end point Y ₁ If the remaining moving distance | X ₁ -X | of the clamp 25 is smaller than the moving distance | Y ₁ -Y _a | of the clamp 25 (YES), the clamp 25 and the mold 26 are Issue a deceleration command.

[0049] Then, the clamp 25, the deceleration velocity V _GX, as with ordering the movement continues to the end point X _1, at step 111, to clamp retracted Y coordinate Y _a mold 26 which has been temporarily saved in the Te is the deceleration speed V _GY, to move to the end point Y _1, issues a movement command, at step 112, when the move is completed and ends the (YES), operation.

[0050] Thus, in the case, the mold 26 once the clamp retracted Y coordinate Y _a, or clamping avoidance region 2
1 (step 107), only the clamp 25 is moved at the feed speed V _OX without deceleration (step 108), and the remaining moving distance of the clamp 25 |
X ₁ −X | is the moving distance | Y _{1 of the} retracted mold 26.
−Y _a | (Y in step 109)
ES), issues a deceleration command for the first time to the clamp 25 and the mold 26 (step 110), by the reduction velocity V _GX and V _GY both to position is moved to the end point (X _1, Y _1).

When the end point Y _{1 of the} mold 26 is within the clamp avoidance area 21 and the moving distance of the clamp 25 is smaller than the moving distance of the mold 26 (FIGS. 2 and 3).

That is, in step 105, the moving distance | X ₁ -X ₀ | from the starting point to the end point of the clamp 25 is calculated as
Moving distance from the clamping evacuation Y coordinate Y _a mold 26 to the end point Y ₁ | Y ₁ -Y _a | compared to the moving distance of the clamp 25 | X ₁ -X ₀ | Smaller towards (NO), Proceeding to step 113, the NC apparatus 1 sends the X-axis servo signal S4 to the X-axis motor Mx and the Y-axis servo signal S to the Y-axis motor My.
By transmitting _{No. 6} , a movement command is issued to the clamp 25 and the mold 26 so as to move to the end point (X ₁ , Y ₁ ).

In step 114, the NC device 1 determines whether or not the deceleration sensor 22 is on by receiving the deceleration sensor signal S1 from the deceleration sensor 22, and if it is on (YES), Since the mold 26 has entered the clamp avoidance area 21, in step 115,
A deceleration command is issued to the X and Y axes.

Thus, the clamp 25 and the mold 26 are
It moves toward the end point (X ₁ , Y ₁ ) by the deceleration speeds V _GX and V _GY , and if the movement is completed in step 116 (YES), the operation ends.

As described above, when the mold 26 located outside the clamp avoidance area 21 enters the clamp avoidance area 21, the clamp 25 and the mold 26
By moving with both deceleration speeds V _GX and V _GY ,
It is positioned at the end point (X ₁ , Y ₁ ).

(2) Operation when the starting point Y _{0 of the} mold 26 is within the clamp avoidance area 21 and the ending point Y ₁ is outside (FIGS. 2 and 4).

That is, in step 101 of FIG.
The C device 1 includes a mold 2 stored in the data storage unit 1A.
Starting Y ₀ of 6, compared with the clamping evacuation Y coordinate Y _a,
If towards the starting point Y ₀ is small (NO), the process proceeds to step 117 in FIG. 4, further, an end point Y ₁ of the mold 26, compared with the clamping evacuation Y coordinate Y _a, it is larger end point Y ₁ If (YES), proceed to step 118, if smaller (N
O), proceed to step 124 in FIG.

When the process proceeds to step 118 in FIG.
A deceleration command is issued in the X-axis direction, and in step 119, a movement command is issued so as to move to the end point (X ₁ , Y ₁ ).

As a result, the clamp 25 operates at the reduced speed V _GX
Accordingly, the mold 26 moves at the feed speed _VOY .

Next, in step 120, the NC device 1 determines whether or not the deceleration sensor 22 is off by receiving the deceleration sensor signal S1 from the deceleration sensor 22, and if it is off (YES), Mold 26 is clamp 2
5 and retreated outside the clamp avoidance area 21, the X-axis deceleration command is released in step 122, and the end point X of the clamp 25 is released in step 123.
If the movement to ₁ has been completed (YES), the operation ends.

On the contrary, in step 120,
If the deceleration sensor 22 is not turned off (NO), the deceleration sensor 22 remains on, and the mold 26 still remains in the clamp avoidance area 21.
In the above, if the movement of the clamp 25 to the end point X1 is completed _first (YES), the operation ends.

As described above, in the case of (2) (FIGS. 2 and 4), the mold 26 moves away from the inside of the clamp avoidance area 21 to the outside.
Waiting for exit from outside 1 (YES in step 120), X
Releases the deceleration of the axis (step 122), by moving at a velocity V _OX feed clamp 25 is positioned to the end point X _1.

(3) The starting point Y ₀ and the ending point Y _{1 of the} mold 26 are
Both are within the clamp avoidance area 21, and the moving distance | X ₁ −X ₀ | of the clamp 25 is equal to the moving distance | Y _{1 of the} mold 26.
Operation when −Y _a | is larger (FIGS. 2 and 5).

[0064] That is, in step 117 of FIG. 4, towards the end point Y ₁ of the mold 26 is smaller than the clamp retracted Y coordinate Y _a (NO), the process proceeds to step 124 in FIG. 5, N
C device 1, the moving distance from the start point of the clamp 25 to the end point | a distance mold 26 retracted to clamp retracted Y coordinate Y _a is moved to the end point Y ₁ | | X ₁ -X ₀ Y ₁ -Y _a
Compared with |, if the moving distance | X ₁ -X ₀ | of the clamp 25 is greater (YES), the flow proceeds to step 125, and if smaller (NO), the flow proceeds to step 133 in FIG.

When proceeding to step 125, the NC device 1 issues a deceleration command to the X-axis, and
, The X-axis servo signal S4 is supplied to the X-axis motor Mx,
By transmitting the Y-axis servo signal S6 to the axis motor My, the (X ₁ , Y _a )
A move command is issued to move to. That is, the NC device 1
Is clamp 25 is moved to the end point X ₁ by the reduction speed V _GX, clamps retracted by a die 26 feeding speed V _OY Y
To the coordinate Y _a (in FIG. 2) to move, issues a move command.

Then, in step 127, the mold 2
6 determines whether to complete the move to the clamp retracted Y coordinate Y _a, in the case of moving completed (YES), step 12
At 8, the deceleration of the X axis is released. Thus, the clamp 25 continues to move to the end point X ₁ by a feed speed V _OX, mold 26 is temporarily stopped in the clamp retracted Y coordinate Y _a.

[0067] Then, in step 129, NC device 1 from the current position of the clamp 25 remaining travel distance to the end point | X ₁ -X | a, from the clamp retracted Y coordinate Y _a mold 26 to the end point Y ₁ If the remaining moving distance | X ₁ -X | of the clamp 25 is smaller than the moving distance | Y ₁ -Y _a | of the clamp 25 (YES), the clamp 25 and the mold 26 are Issue a deceleration command.

[0068] Then, the clamp 25, the deceleration velocity V _GX, as with ordering the movement continues to the end point X _1, at step 131, to clamp retracted Y coordinate Y _a mold 26 which has been temporarily saved in the Te is the deceleration speed V _GY, to move to the end point Y _1, issues a movement command, at step 132, when the move is completed and ends the (YES), operation.

As described above, in the case of (3) (FIGS. 2 and 5), while the clamp 25 is decelerated (step 1).
25), the mold 26 is once allowed to retract to the clamp retracted Y coordinate Y _a (step 127), releases the deceleration of the X-axis (step 128), the feed speed only clamp 25 V
_OX (step 128), and the remaining moving distance | X ₁ -X |
Moving distance of | Y ₁ -Y _a | (YES in step 129) when more becomes smaller, issues a deceleration command to the clamp 25 and the mold 26 (step 130), the deceleration velocity V _GX both
And V _GY to move to the end point (X ₁ , Y ₁ ) for positioning.

(4) The starting point Y ₀ and the ending point Y _{1 of the} mold 26 are
Both are within the clamp avoidance area 21, and the moving distance | X ₁ −X ₀ | of the clamp 25 is equal to the moving distance | Y _{1 of the} mold 26.
Operation when −Y _a | is smaller (FIGS. 2 and 6).

That is, in step 124 of FIG. 5, if the moving distance | X ₁ -X ₀ | of the clamp 25 is smaller than the moving distance | Y ₁ -Y _a | of the mold 26 (NO), FIG.
Proceeds to step 133, if the NC unit 1, the end point Y ₁ is the starting point X ₀ is less than whether the mold 26, i.e. whether the mold 26 approaches the clamp 25 (FIG. 2), away from the clamp 25 ( 2) of FIG. 2 is determined.

When the mold 26 approaches the clamp 25 (YES), in step 134, the NC device 1 issues a deceleration command to the X axis and the Y axis, and when the mold 26 moves away from the clamp 25, Is (NO), Step 13
In step 7, a deceleration command is issued to the X-axis. In step 135, the clamp 25 and the mold 26 rotate the deceleration speeds _VGX and _VGY.
, A movement command is issued so as to move to the end point (X ₁ , Y ₁ ), and if the movement is completed in step 136 (YES), the operation is terminated.

In this case, the moving distance | X ₁ -X ₀ | of the clamp 25 is smaller than the moving distance | Y ₁ -Y _a | of the mold 26 from the beginning. The mold 26 is positioned by moving to the end point (X ₁ , Y ₁ ) by the deceleration speeds V _GX and V _GY .

[0074]

As described above, according to the present invention, when the clamp and the mold moving device are both located within the clamp avoidance area, the clamp moving distance is determined. Is greater than the travel distance of the mold,
The clamp is moved out of the clamp avoidance area, and the clamp is moved without decelerating. When the moving distance of the clamp is smaller than the moving distance of the mold, the clamp is moved at a reduced speed so that the clamp and the mold are moved. Since the mold is positioned at the destination, the mold is retracted outside the clamp avoidance area, and the clamp is moved without deceleration as much as possible. In addition to shortening the time to improve productivity, speeding up the operation to improve agility, and also reducing the number of clamping avoidance operations, improving machining accuracy,
This has the technical effect of improving maintainability and reducing costs.

Furthermore, according to the present invention, the size of the clamp avoidance area differs because the mold is temporarily retracted outside the clamp avoidance area by the NC device (FIG. 1) instead of the machining program. The plate material processing machine also has an effect that the work can be processed without modifying the processing program of the part related to the retreat operation.

[0076]

[Brief description of the drawings]

FIG. 1 is a diagram showing an embodiment of the present invention.

FIG. 2 is a diagram showing a positional relationship between a clamp and a mold according to the present invention.

FIG. 3 is an operation explanatory diagram when the starting point Y _{0 of the} mold 26 according to the present invention is outside the clamp avoidance area 21;

FIG. 4 is an operation explanatory diagram in a case where the starting point Y _{0 of the} mold 26 according to the present invention is inside the clamp avoidance area 21 and the end point Y ₁ is outside the clamp avoidance area 21.

FIG. 5 shows the starting point Y ₀ and the ending point Y of the mold 26 according to the present invention.
₁ is an operation explanatory diagram in the case where both ₁ are within the clamp avoidance area 21 and the moving distance of the clamp 25 is larger than the moving distance of the mold 26.

FIG. 6 shows the starting point Y ₀ and the ending point Y of the mold 26 according to the present invention.
₁ is an operation explanatory diagram in the case where both ₁ are within the clamp avoidance area 21 and the moving distance of the clamp 25 is smaller than the moving distance of the mold 26.

FIG. 7 is a configuration diagram of a conventional technique.

FIG. 8 is an explanatory view in the case where a clamp and a mold approach each other in the related art.

FIG. 9 is a diagram illustrating an operation of avoiding a clamp in the related art.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 NC apparatus 1A Data storage unit 2 Plate processing machine 21 Clamp avoidance area 22 Deceleration sensor 23 Clamp avoidance sensor 24 Carriage 25 Clamp 26 Mold 27 X-axis ball screw 28 Y-axis ball screw S1 Deceleration sensor signal S2 Clamp avoidance sensor signal S3 X Axis current coordinate signal S4 X-axis servo signal S5 Y-axis current coordinate signal S6 Y-axis servo signal

Claims (1)

[Claims] 1. A plate material having a clamp for gripping a workpiece mounted movably in the X-axis direction, a die comprising a punch and a die mounted movably in the Y-axis direction, and having a clamp avoidance area. In the processing machine, when both the clamp and the mold move destination are located within the clamp avoidance area, and the clamp movement distance is longer than the mold movement distance, the mold waits outside the clamp avoidance area. Let me know
The clamp is moved without decelerating. When the moving distance of the clamp is smaller than the moving distance of the mold, the clamp and the mold are positioned at the moving destination by moving the clamp at a reduced speed. Clamp and mold moving device.