JPH035888B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention provides a punch (upper mold) and a die (lower mold) for punching a plate-shaped workpiece into various shapes.
It pertains to a turret punch press, which is equipped with a large number of disc-shaped turrets that are rotatable and have upper and lower sides facing each other.
More specifically, the present invention relates to upper and lower rotary molds rotatably supported by the upper and lower turrets, and a method of controlling the turrets.

Generally, a turret punch press is equipped with a rotatable disc-shaped upper turret and a large number of punches (upper die) that can be attached and detached, and a lower turret facing the upper turret has a number of punches corresponding to each of the punches. It is equipped with a large number of dies (lower dies). This type of turret punch press is equipped with a vertically movable ram that can press a punch that is indexed and positioned at a predetermined position by rotating the upper and lower turrets. A workpiece is interposed between the punches and the punch is pressed by the ram, thereby punching the workpiece.

In the above-mentioned turret punch press,
Punches and dies are rotatably attached to the upper and lower turrets, and the rotatable punches and dies are rotated and indexed appropriately to perform punching. This enables punching in different directions using a pair of punches and dies. Techniques for performing this on workpieces have been developed in recent years.

In the turret punch press as described above, when the upper and lower turrets are rotatable, the rotary molds supported by the upper and lower turrets are rendered unrotatable, and conversely, when the rotary molds are rotatable, the turrets are The present invention provides a method for controlling the rotatable motor so that it cannot rotate.

Hereinafter, one embodiment of the present invention will be described in detail using the drawings.

The turret punch press according to the present invention is generally designated by the reference numeral 1 in FIG. The embodiment includes an upper frame 9 supported by the upper frame 9. The turret punch press 1 includes upper and lower disc-shaped turrets 13 and 15 supported by a ram 11 and upper and lower rotating shafts 17 and 19. A large number of molds 21 and lower molds 23 are supported in a detachable and replaceable manner. The ram 11 is supported substantially at the center of the upper frame 9 so as to be movable up and down, and upper and lower molds 21 and 2 are positioned below the ram 11.
3, the upper mold 21 is pressed to punch the workpiece W. The upper turret 13 is supported horizontally by an upper rotating shaft 17 vertically disposed from the upper frame 9, and a portion near its outer periphery faces below the ram 11. The lower turret 15 is rotatably supported on the base 3 via a lower rotating shaft 19 provided coaxially with the upper rotating shaft 17 below the upper turret 13.
The pair of upper and lower molds 21 and 23 supported by the upper and lower turrets 13 and 15 have the same size and shape, and are aligned vertically, respectively. Upper and lower turrets 1
3 and 15 are rotatably driven at the same time by a turret rotation drive device such as a servo motor so that the desired upper and lower molds 21 and 23 are positioned below the ram 11, and their rotational positions are determined by a rotary encoder. Detected by a detection device such as

On the outer peripheral surfaces of the upper and lower turrets 13, 15,
A large number of positioning holes 13h, 15h are bored corresponding to the positions of the upper and lower molds 21, 23. Also,
The side frame 5 has upper and lower turrets 1.
Positioning devices 25 corresponding to 3 and 15, respectively
(Only one side is shown in FIG. 2) is attached. The positioning device 25 is composed of an actuator such as an air cylinder, and has a positioning pin 2 that can be freely engaged with and detached from the positioning holes 13h and 15h.
A detection device such as a limit switch provided in the positioning device 25 can detect whether or not the positioning pin 27 is engaged with the positioning holes 13h, 15h. Therefore, the desired upper and lower molds 21 and 23 are
1, the positioning pin 27 is inserted into the positioning hole 1 of the upper and lower turrets 13, 15.
3h, 15h, upper and lower turrets 13, 1
5 is fixed.

In order to transfer and position the workpiece W to be punched, the turret punch press 1
is equipped with a first carriage 29 that can move toward and away from the upper and lower turrets 13 and 15, and a second carriage 33 equipped with a clamping device 31 for clamping the workpiece W is movably mounted on the first carriage 29. It has been done. The first carriage 29 is
Horizontal rails 35 fixed on both sides of the upper part of the base 3
It is slidably supported on the turrets 13 and 15, and is moved toward and away from the upper and lower turrets 13 and 15 by the drive of a drive device (not shown) such as a servo motor, and its movement position is controlled by the drive device. It is detected by a detection device such as a pulse encoder. The second carriage 33 equipped with the clamping device 31 is supported by the first carriage 29 so as to be movable in a direction perpendicular to the rail 35, and is moved by the drive of a drive device such as a servo motor. The moving position is detected by a detection device. Also, the base 3
A fixed table 37 for movably supporting the workpiece W is fixed to the upper surface of the holder, and movable tables 39 fixed to the first carriage 29 are arranged on both sides of the fixed table 37, respectively.

In the above configuration, by appropriately controlling the movement of the first and second carriages 29 and 33 under the control of the NC control device, the workpiece W gripped by the clamping device 31 is moved between the upper and lower turrets 13 and 15.
can be transported between and positioned below the ram 11. As mentioned above, the work W is moved between the upper and lower turrets 13 and 15 by the ram 11.
Before or at the same time, the upper and lower molds 21 and 23 are positioned below the ram 11 by rotation of the upper and lower turrets 13 and 15, and the ram 11 is lowered to press the upper mold 21. As a result, the workpiece W is punched by the upper and lower molds 21 and 23. moreover,
Under the control of the NC control device, the first and second carriages 29 and 33 are moved and positioned, and the upper and lower turrets 13 and 15 are rotated and punched to perform punching. Punching is performed automatically and continuously.

As is clear from FIGS. 2 and 3, the upper turret 13 has a plurality of upper rotary molds 21a, 2
1b is rotatably supported, and lower rotary molds 23a, 23b vertically aligned with upper rotary molds 21a, 21b are rotatably supported on the lower turret 15. The upper rotating mold 21a, 21
b are arranged at symmetrical positions with respect to the axis of the upper turret 13, and the lower rotary molds 23a, 2
3b is similarly arranged. The upper rotating mold 2
1a, 21b and lower rotating molds 23a, 23b
The ram 11 is moved by the upper and lower turrets 13 and 15.
By being positioned below the workpiece W, the two work together to punch the workpiece W.

The upper rotary molds 21a and 21b have the same structure and function, and are formed into the upper turret 1 by the same method.
This is supported by 3. Upper rotating mold 2
As shown in FIG. 4, 1a and 21b are generally equipped with a flange 21F at the upper end, and are supported in a vertically movable manner by a cylindrical guide member 41 having a flange 41F at the upper end. . The upper rotary molds 21a and 21b are urged upward by a stripper spring 43 that is elastically mounted between the flange 21F and the guide member 41, and the lower end portion thereof is slightly pushed into the guide member 41. It's in a drawn-in state. The upper rotary molds 21a and 21b are supported by a guide member 41 so as to be able to move up and down, and rotation with respect to the guide member 41 is prevented by means such as a key. The guide member 41 supporting the upper rotating molds 21a and 21b is vertically movable by a cylindrical rotating member 51 rotatably supported by a cylindrical holding member 49 via a plurality of ball bearings 45 and a needle bearing 47. is supported by. Although the guide member 41 is supported by the rotating member 51 so as to be able to move up and down, the rotating member 5
By engaging the key 53 fixed to 1,
Rotation of the guide member 41 with respect to the rotating member 51 is prevented. A cylindrical holding member 49 supporting a cylindrical rotating member 51 is vertically inserted into a hole 13B perpendicularly penetrating the upper turret 13 so that the upper rotating molds 21a and 21b can protrude downward for punching operation. is fixedly supported. The guide member 41 has a flange 4 of the guide member 41.
It is supported by a cylindrical support member 55 that locks 1F, and the support member 55 is fixed to an annular holding member 59 by a fixing member 57. Annular holding member 5
9 is configured such that the lift spring 61 can be moved up and down along a plurality of guide rods 63 erected on the upper turret 13 by being compressed and released.
It is urged upward by a plurality of lift springs 61. In the above, lift spring 6
1 is strong enough to lift the upper rotary molds 21a, 21b, etc., but is set weaker than the stripper spring 43.

In the above configuration, the upper rotary molds 21a, 21
When b is pressed by the ram 11, the upper rotary molds 21a and 21b are activated by the stripper spring 43, which is stronger than the lift spring 61, and the flange 4.
The guide member 41 is lowered through 1F, and the lift spring 61 is compressed to be lowered. After the lower end of the guide member 41 comes into contact with the workpiece W to be punched, the upper rotating molds 21a and 21b move the stripper spring 43 to punch the workpiece W.
is compressed and lowered further. When the ram 11 is lifted and released after punching the workpiece W, the upper rotary molds 21a and 21b are first pulled out from the workpiece W by the stripper spring 43, and then raised and returned by the lift spring 61. Ru.

The rotating member 5 within the cylindrical holding member 49
A worm gear 67 is fixed to the upper part of the rotating member 51 by a plurality of bolts 65 so as to rotate the rotating member 51 . The worm gear 67 includes a worm 69 horizontally and rotatably provided on the upper turret 13.
It meshes with a and 69b.

As is clear from the above configuration, the cylindrical rotating member 51 is rotated by the rotation of the worms 69a, 69b to rotate the upper rotary molds 21a, 21b. Therefore, by rotating the worms 69a, 69b to punch various holes having the same size and shape but different directions into the workpiece W, it is possible to index or change the upper rotary molds 21a, 21b. It is possible.

As is clear from FIGS. 2 and 3, the worm 69a, which rotates the upper rotary molds 21a and 21b,
69b are support members 71a and 71b, respectively, aligned in a straight line in the radial direction of the upper turret 13.
It is supported horizontally and rotatably on the Each outer end 69e of each of the worms 69a, 69b is formed into a trapezoidal shape as shown in FIG. 5, and protrudes radially outward from the outer peripheral surface of the upper turret 13. The inner ends of each worm 69a, 69b are connected by a connecting rod 73 and connecting members 75a, 75b which pass through the rotating shaft 17 of the upper turret 13 and are horizontal and rotatable. Additionally, a detection device such as a proximity switch is installed in the upper turret 13 in close proximity to the upper rotary molds 21a and 21b so as to detect that the upper rotary molds 21a and 21b are at the reference position (0° position). 77a, 7
7b is provided.

As is clear from the above configuration, the worm 69
By rotating the upper rotary molds 21a and 21b, the holding member 4 is rotated to change the directionality.
9 are simultaneously rotated. Therefore, when one of the upper turrets 21a and 21b is positioned below the ram 11 by the upper turret 13, the worm 6 is positioned away from below the ram 11.
One of 9a and 69b is the upper rotary mold 21a and 21
It is rotated to rotate or index b.

Referring to FIG. 3, although not shown in detail, the lower rotary molds 23a and 23b are
It is rotatably supported on the lower turret 15 in substantially the same manner as the upper rotary molds 21a and 21b. FIG. 3 shows the lower rotary molds 23a and 23b.
The worms 79a and 79b are shown rotating, respectively, and the connecting rod 81 connecting the worms 79a and 79b is shown.
In any case, when one of the worms 79a, 79b is rotated, the lower rotary molds 23a, 23b can be rotated or indexed on the lower turret 15 to change the directionality, similarly to the upper rotary molds 21a, 21b. be done.

As is clear from FIGS. 2 and 3, the upper rotary molds 21a, 21b and the lower rotary mold 23
a, 23b to rotate or index.
The upper and lower turrets 13 of the turret punch press 1,
A motor 85 such as a servo motor with a shaft 83 is provided adjacent to the motor 15 .
The motor 85 is equipped with a detection device such as a pulse encoder for detecting the rotational angle or rotational position. The gear box 87 is provided close to the upper and lower turrets 13 and 15, and includes a gear 89 fixed to the shaft 83 of the motor 85, gears 91 and 93 meshing with the gear 89, and shafts 9 and 97, respectively. Said gear 9
Shafts 95 and 97 of pulleys 99 and 101 project horizontally from the gear box 87 toward the upper and lower turrets 13 and 15, respectively.
03 and 105 via connectors 107 and 109, respectively. The shaft 103 of the pulley 99 is rotatably supported by a bracket 111 attached to the upper frame 9, and the shaft 105 of the pulley 101
is rotatably supported by a bracket 113 mounted on the base 3. The pulley 99 is operatively connected to a transmission 117 attached to the upper frame 9 via a transmission member 115 such as a timing belt, and the pulley 101 is similarly attached to the base 3 via a transmission member 119 such as a timing belt. It is operatively connected to a transmission 121. Therefore, when the motor 85 is actuated to rotate the gear 89, the pulleys 99, 101 rotate the transmission member 11.
5 and 119, respectively, the shaft 9
5, 97, connectors 107, 109 and shaft 10
3 and 105, and are simultaneously rotated by gears 91 and 93.

As is clear from FIG. 5, the transmission device 117,
Since the transmission device 121 has the same structure and function, the details of the transmission device 117 will be explained. Transmission device 1
17 is constituted by a casing 123, which is attached to the upper frame 9 in the vicinity of the upper turret 13 so as to rotate the worms 69a, 69b in order to rotate or index the upper rotary molds 21a, 21b.

The transmission device 117 includes a pulley 125 around which a transmission member 115 is wound around the pulley 99,
This pulley 125 is fixed to a shaft 129 that is horizontally and rotatably supported by a bearing 127 supported by a casing 123. The shaft 129 of the pulley 125 is equipped with a brake device 131 such as an electromagnetic brake at one end.
It also includes a coaxially fixed gear 133. The gear 133 meshes with a gear 137 provided on a cylindrical rotating member 135. The rotating member 135
is connected to the casing 1 through a plurality of bearings 139.
23 horizontally and rotatably, and its inner hole is formed as a spline hole 135s. Therefore, gears 89, 91, shaft 9
5, 103, when the pulley 125 is rotated by the motor 85 via the pulley 99 and the transmission member 115, the cylindrical rotating member 1
35 is rotated.

Referring to FIG. 5, the spline shaft 141 is fitted into the spline hole 135s so as to protrude horizontally outward from the casing 123.
is slidably inserted into the cylindrical rotating member 135. Therefore, spline shaft 1
41 can slide horizontally along the spline hole 135s of the rotating member 135, and the spline shaft 141 rotates together with the rotating member 135 when the gear 137 is rotated by the gear 133 and pulley 125. The spindle shaft 1
A coupling member 145 is integrally fixed to the protruding end of 41 via a pin 143, and a recess 145c opening in the horizontal direction is formed at the end of the coupling member 145. Cup ring 1
The recess 145c of 45 is substantially V-shaped and is provided so as to engage with the outer end 69e of the worm 69a or 69b to rotate the worm 69a or 69b. Strictly speaking, the coupling member 145 is bifurcated with a V-shaped recess 145c, and the outer ends 69e of the worms 69a, 69b are formed into an inclined plate shape (wedge shape). The end of the spline shaft 141 opposite the coupling member 145 extends horizontally into a cylinder 149 with a cap 147;
Piston 1 slidably fitted into cylinder 149
It is rotatably supported by a bearing 153 provided on the shaft 51. The spline shaft 141 is connected to the bearing 15 in the piston 151 of the cylinder 149.
3, a rotatable and cylindrical rotating member 13;
5, it is configured to be horizontally movable integrally with the piston 151 in the cylinder 149.
The piston 151 of the cylinder 149 is urged toward the cap 147 by an internal spring 155, and the piston 151 has a rod member 157 that penetrates the cap 147 and projects horizontally and slidably from the cylinder 149. It is equipped.

In the above configuration, the spline shaft 141
is always urged in the direction away from the upper turret 13 by a spring 155, and the cylinder 1
Coupling member 1 by piston 151 of 49
The recess 145c of 45 is disengaged from the outer end 69e of the worms 69a, 69b. However, by air or pressure oil, the cylinder 14
When the piston 151 of No. 9 is pressed against the spring 155, the spline shaft 141 is moved toward the upper turret 13 within the cylindrical rotating member 135 and the cylinder 149, and the recess 145c of the coupling member 145 is moved toward the worm 69.
a, 69b is engaged with the outer end 69e. Therefore, as can be seen, the coupling member 145
When the spline shaft 141 is pressed to hold the recess 145c in engagement with the outer end 69e of the worm 69a or 69b, the spline shaft 141 rotates or indexes the upper rotary molds 21a, 21b. The worm 69a or 69b can be rotated. Further, the spline shaft 141 engages and holds the coupling member 145 with the worm 69a or 69b, and when the working fluid is drained from the cylinder 149, the spring 155 returns the coupling member 145 to the original position.

Referring again to FIG. 5, coupling member 1
45 is equipped with a keyway 145k, and the transmission device 1
A part of the casing 123 of No. 17 has the key groove 1
45k is provided with a key 159 that can be freely engaged and detached. Particularly, the coupling member 145 is inserted into the outer end 6 of the worms 69a, 69b only when the keyway 145k is aligned with the key 159.
It is configured to be able to move in a direction away from the upper turret 13 in order to release the engagement between the upper turret 9e and the recess 145c. Further, the keyway 145k and the key 159 are configured to be aligned with each other only when the worms 69a, 69b position the upper rotary molds 21a, 21b at the origin of rotation (reference position). The worm 69a,
When 69b rotates once, the upper rotating molds 21a and 21
b rotates by an angle equally divided into 360 degrees. The aforementioned detection devices 77a and 77b detect the rotational positions of the upper rotary molds 21a and 21b,
The motor 85 is configured to be stopped so as not to rotate the worms 69a, 69b in order to stop the upper rotary molds 21a, 21b at their original positions. Furthermore, the piston 151 in the cylinder 149 is configured to detect the position of the coupling member 145.
A dog 165 is fixed to the rod member 157, and this dog 165 is connected to a detection device 161, 1, such as a proximity switch attached to a part of the upper frame 9.
63.

As is clear from the above configuration, the upper rotating mold 2
The coupling member 145 moves the worms 69a, 69b only when the worms 1a, 21b are located at the origin position.
recess 145 to release the engagement with outer end 69e of
Move back c. Therefore, the coupling member 1
When the worms 69a, 69b are not rotated by the worms 45 and the spline shaft 141, the upper rotating molds 21a, 21b are always held at their original positions, so they can be used immediately.

Although only the case of the upper rotary molds 21a and 21b has been described, the case of the lower rotary molds 23a and 23
b is also rotated and indexed in the same manner. The upper rotary molds 21a, 21b and the lower rotary molds 23a, 23b are connected to transmission devices 117, 121.
are rotated and indexed simultaneously or synchronously by being simultaneously driven by a motor 85 via gears 89, 91, and 93.

Referring again to FIGS. 2 and 3, a detection device 16 such as a proximity switch is attached to a part of the upper frame 9.
7,169 is installed. One detection device 16
7 is a dog 171 installed on the upper turret 13
By detecting the upper and lower turrets 13, 15
The rotation of the motor is decelerated and then stopped. When the detection device 167 detects the dog 171 and the upper and lower turrets 13 and 15 are stopped, the upper and lower turrets 13 and 15 are located at the original position. When the upper and lower turrets 13 and 15 are located at the original position, one of the upper rotary molds 21a and 21b is moved to the ram 1.
1, and one outer end 69e of the worms 69a, 69b faces the coupling member 145 and can be engaged. The other detection device 169 is connected to the upper and lower turrets 1.
3 and 15 are stopped at the original position, the dog 173 on the upper turret 13 is detected to confirm that the upper and lower turrets 13 and 15 are stopped at the original position. Furthermore, a dog 175 is provided on the upper surface of the upper turret 13 at a position axially symmetrical to the dog 171. This dog 175 and the detection device 167 cooperate to detect the upper and lower turrets 1.
When the upper and lower turrets 13 and 15 have stopped rotating, the upper and lower turrets 13 and 15 have been rotated exactly 180 degrees from the original position, and the upper rotating molds 21a and 21b
The other one is indexed below the ram 11.

With further reference to FIGS. 2 and 3, the upper and lower turrets 13 and 15 are connected to the upper rotating molds 21a and 21.
Fixing devices 177, 17 provided to fix and hold the lower rotary molds 23a, 23b, respectively.
It has 9. The fixed mountings 177 and 179 have the same structure and function, so the upper rotary mold 21
Only the fixing device 177 that fixes and holds a and 21b will be described.

Referring to FIGS. 6, 7, and 8, fixing device 177
are mutually pivotally supported by a base 181 having side walls 181a and 181b on both sides and a pin 183 fixed perpendicularly to the base 181, and
It is composed of a pair of clamp members 189 and 191 having clamp members 85 and 187 at their tips, respectively. The fixing device 177 includes worms 69a and 69 that rotate the upper rotary molds 21a and 21b as described above.
The ring member 193 fixed to the connecting rod 73 interlockingly connected to the jaw 185,
Upper turret 13 so that 187 can be clamped
is installed on. The clamp member 189,1
91 is biased by an elastic body 195 such as urethane rubber so that the ring member 193 provided on the connecting rod 73 is always clamped by the jaws 185 and 187. Fixing device 17
Reference numeral 7 denotes a pair of hinges pivotally connected to the side walls 181a and 181b of the base 181 by horizontal pins 197 and 199, respectively, so that the clamp members 189 and 191 release the ring member 193 provided on the connecting rod 73. Bell crank member 20
1,203, each bell crank member 2
01 and 203 are loosely pivotally connected to each other by a pin 205. The bell crank members 201, 2
03 is the clamp member 18 against the elastic body 195.
Pressing part 201P, 2 that presses the end of 9,191
Equipped with 03P. The bell crank member 20
Although 1,203 are similar in structure to each other,
One bell crank member 201 is provided with an arm portion 201A that is pressed downward. When the arm portion 201A of the bell crank member 201 is pressed downward, the bell crank members 201, 203
The pressing parts 201P and 203P press the ring member 193 provided on the connecting rod 73 into the jaw 1.
The base end portions of the clamp members 189, 191 are pressed against the elastic body 195 so that the clamp members 85, 187 can be released.

As shown in FIGS. 3 and 6, the fixing device 1
The push rod 20 is pressed so as to press the arm portion 201A of the bell crank member 201 at 77.
A pair of actuating devices 209a, 209b, such as hydraulic or pneumatic cylinders with 7, are mounted on the upper frame 9. The fixed mounting 177 is moved by the upper turret 13 to change its position, so that one of the actuators 209a, 209b is moved by the push rod 2 depending on the rotational position of the upper turret 13.
07, the arm portion 2 of the bell crank member 201
It is configured to press 01A. The actuating devices 209a and 209b are configured to push the push rod 207 downward so as to press the arm portion 201A of the bell crank member 201 to release the ring member 193 of the connecting rod 73. Also, Pussyrod 207
In order to detect whether the actuating device 209a, 209b is lowered, each actuating device 209a, 209b includes a dog 211 and a detection device 213, such as a proximity switch.

In the above configuration, the connecting rod 73
are normally fixed and held by a fixing device 177, and the worms 69a, 69b and the upper rotary molds 21a, 21b are stopped and held so that they do not rotate. When the push rod 207 is lowered by the actuating devices 209a, 209b to push down the arm portion 201A of the bell crank member 201 in the fixing device 177, the worms 69a, 69b
The connecting rod 73 is released from the fixing device 177 so that the upper rotating molds 21a, 21b can be rotated and indexed. In addition, the fixing device 1
77 can release the connecting rod 73.
The device 213 detects that it has been lowered by 209b.
After the worms 69a and 69b are detected, the worms 69a and 69b are driven to rotate and index the upper rotary molds 21a and 21b.

Although the above explanation is only about the fixing device 177 that fixes the upper rotary molds 21a and 21b, the fixing device 179 that fixes the lower rotary molds 23a and 23b has the same structure as described above. . Actuation device 2 of fixation device 177
Actuating device 215a corresponding to 09a, 209b,
215b is attached to the upper surface of the base 3 as shown in FIG. 3, and is configured to operate the fixing device 179 via an intermediate rod 217 that penetrates the lower turret 15 and is provided to be able to move up and down. ing.

The upper and lower turrets 13, 15 and the upper and lower rotating molds 21a, 21b; 23a, 23b are rotated and indexed under the control of an NC control device. Next, the control will be explained.

FIG. 9 shows that after the upper and lower turrets 13 and 15 are positioned at the origin position, the upper and lower rotary molds 21a,
21b; shows a time chart of control, etc. until rotation and indexing of 23a and 23b are performed. As is clear from FIG. 9, when the motion command signal MCT is turned ON in order to return the upper and lower turrets 13, 15 to their original positions, the recess 145c of the coupling member 45 moves to the outer end of the worms 69a, 69b. 69e (In this figure, the status of the detection devices 161 and 163 is generally indicated.
Under the condition that T
The axis pin signal LSP turns OFF, and positioning device 2
The positioning pin 27 of 5 is connected to the upper and lower turrets 13, 1.
The upper and lower turrets 13 and 15 become rotatable.
When the T-axis pin signal LSP turns OFF, the turret system servo-off signal SVFT turns ON, and then the interlock signal ITT for the motors that rotate the upper and lower turrets 13 and 15 turns ON, and the interlock is released. Therefore, the interlock signal
When ITT turns ON, the turret system imposition signal EST turns OFF, and the upper and lower turrets 13,
15 are rotated at the same time.

When the upper and lower turrets 13 and 15 are rotated and the detection device 167 detects the dog 171 on the upper turret 13, the upper and lower turrets 13 and 15 are decelerated and then stopped. That is, the motion command signal MCT is turned OFF and the imposition signal EST is turned ON, thereby stopping the rotation of the upper and lower turrets 13 and 15. At the same time, the turret home return completion signal ZPT turns ON, and one of the upper and lower rotary molds 21a, 23a, or 21 as appropriate.
The first mold position signal RPIT indicating whether or not b, 23b is located directly below the ram 11 is turned ON. Also,
When the detection devices 167 and 169 detect the dogs 171 and 173 (when they differ by 180 degrees, the dog 175 is detected), the index position confirmation signal LIPC is turned ON.

When the first mold position signal RPIT turns ON, the servo off signal SVFT turns OFF, and this signal turns OFF the interlock signal ITT, and the turret motor is interlocked, and this motor is electrically disconnected. It becomes impossible to rotate. Also, the servo off signal SVFT is
When turned OFF, the T-axis pin signal LSP turns ON, and the positioning pin 27 in the positioning device 25
is the positioning hole 13 of the upper and lower turrets 13, 15.
h and 15h, respectively. Therefore, the upper and lower turrets 13, 15 become electrically and mechanically unrotatable.

When the T-axis pin signal LSP turns ON, the index clamp solenoid signal ICLP turns ON.
, the working fluid is supplied to the cylinder 149, and the coupling member 145 is connected to the upper and lower turrets 1.
The recess 145c of the coupling member 145 engages with one outer end 69e of the worms 69a, 69b. When the recess 145c of the coupling member 145 engages with the outer end 69e as described above, the dog 16 moves integrally with the coupling member 145.
5 moves from the position corresponding to the detection device 163 to the position corresponding to the detection device 161, so the index clamp signal LCP is turned ON. When this index clamp signal LCP turns ON, the servo off signal SVF4 of the motor 85 system turns ON. In addition, the index brake B solenoid signal IBKB (when the upper rotary mold 21b is indexed below the ram 11, and when the upper rotary mold 21a is indexed, the signal IBKA) is turned ON.
A working fluid is supplied to one of the actuating devices 209a, 209b as appropriate, and the push rod 207 is lowered. The push rod 207 is lowered and the fixing device 1
When the arm portion 201A of the bell crank member 201 at 77 is pressed, the connecting rod 7
3 is released from fixation and becomes rotatable. When the push rod 207 is lowered as described above, the dog 211 provided on the push rod 207 engages the detection device 2.
Since it leaves the position corresponding to 13, the index brake B signal LBKB turns OFF. When this signal LBKB is turned OFF, the interlock signal IT4 for the motor 85 is turned ON, and the interlock of the motor 85 is released. When the interlock signal IT4 turns ON, the in-position signal
ES4 is turned off. At this time, the mold origin return switch signal W+C is in the ON state and the motion command signal MC4 is in the ON state, so that the motor 85 is rotated and the upper and lower rotary molds are rotated. When the upper rotary molds 21a and 21b return to their original positions due to the rotation of the upper and lower rotary molds, the detection devices 77a and 77b are activated,
The rotation of the motor 85 is stopped. That is, the motion command signal MC4 is turned OFF.
By turning off this signal MC4, the in-position signal
ES4 turns ON and return completion signal ZP4 turns ON again.
and the mold 0° signal PR24 turns ON.

As described above, after the upper and lower rotary molds are positioned at the original position, the rotary molds are rotated and indexed as necessary.

Upper and lower rotating molds 21a, 21b; 23a, 23
By appropriately rotating and indexing one side of b, the work W
If other stations in the upper and lower turrets 13 and 15 are ordered to use general molds after punching has been performed, as shown in Fig. 10, first the upper and lower stations used are The motion command signal MC4 is turned ON to return the rotary molds to the original position, and the imposition signal ES4 is turned OFF to drive the motor 85 and rotate the upper and lower rotary molds. When the upper and lower rotating molds return to their home positions, the detection devices 77a and 77b are activated as described above, the motion command signal MC4 is turned OFF, and the imposition signal ES4 is turned OFF.
The motor 85 is turned on, and the rotation of the upper and lower rotary molds is stopped.

When the motion command signal MC4 turns OFF, the imposition signal ES4 and the motion command signal MCT turn ON. When the in-position signal ES4 turns ON, the return completion signal
ZP4 and mold 0° signal RP24 turn ON. When the motion command signal MCT and the mold 0° signal RP24 are both ON, the index brake solenoid signal IBKA (upper rotating mold 2
1a is indexed below the ram 11, and when the upper rotary mold 21b is indexed, the signal IBKB) is turned OFF, and the actuating device 20
The working fluid is discharged from 9b and 290a, and the push rod 207 is raised. Therefore, the index brake upper A, lower A signals IBKUA,
Both IBKDA are turned ON, and the upper and lower connecting rods 73 and 81 are fixed by the fixing devices 177 and 179. When the signal IBKUA turns ON, the interlock signal IT4 turns OFF, and the motor 85 becomes interlocked and cannot rotate electrically. Further, when the signals IBKUA and IBKUB of the index brakes upper A and lower A are both turned ON, the index clamp solenoid signal ICLP is turned OFF, the working fluid is discharged from the cylinder 149, and the coupling member 14 is turned OFF.
The recess 145c of No. 5 is separated from the outer end 69e of the worms 69a, 69a, and the coupling member 145
The keyway 145k engages with the key 159. Therefore, the coupling member 145 etc. will be mechanically locked.

As mentioned above, the recess 145c of the coupling member 145 is connected to the outer end 69 of the worms 69a, 69b.
When the index clamp is separated from the position e, the signals of the index clamps upper and lower B (upper and lower detection devices 161) are
Both LCPUB and LCPDB are turned OFF, and the index clamps upper and lower A (upper and lower detection devices 163)
Signals LCPUA and LCPDA both turn ON. The servo-off signal SVF4 turns OFF under the condition that both signals LCPUA and LCPDA are ON. Further, the T-axis pin signal LSP is turned OFF by turning on the signal LCPUA of the index clamp upper A, and the positioning pin 27 in the positioning device 25 is removed from the positioning holes 13h and 15h of the upper and lower turrets 13 and 15. In addition, the signal LCPUA is ON, the T-axis pin signal LSP is OFF, and the return completion signal ZP4 is
Depending on the ON condition, the in-position signal EST is
It is turned OFF and the upper and lower turrets 13 and 15 are rotated. When the upper and lower turrets 13 and 15 start rotating, the mold position signal RP2T (upper rotating mold 2
When 1a is indexed below the ram 11, the signal RPIT) is turned OFF. As mentioned above, when the upper and lower turrets 13 and 15 are rotated by the command value, the motion command signal MCT is turned OFF.
When this signal MCT turns OFF, the imposition signal EST turns ON. Then, when the in-position signal EST turns ON, the T-axis pin signal LSP becomes
The positioning pin 27 of the positioning device 25 is inserted into the positioning holes 13h, 15h of the upper and lower turrets 13, 15, and the upper and lower turrets 13, 15 are indexed and fixed to the other commanded station. After the upper and lower turrets 13 and 15 are fixed in this way, the workpiece W is punched using a die indexed under the ram 11.

As mentioned above, after the punching process is performed using the molds of the stations other than the upper rotary molds 21a and 21b, the upper rotary molds 21a and 21
When one of the turrets 13 and 15 is instructed to rotate as appropriate, as is already clear from the explanation of FIGS. 9 and 10, the upper and lower turrets 13, 15
is rotated and one of the upper rotary molds 21a, 21b is indexed below the ram 11, as shown in FIG. 11, the imposition signal EST turns ON and the upper and lower turrets 13, 15 stop rotating. Also, the index position confirmation signal LIPC is
Turns on. The above imposition signal EST is ON
, one of the mold position signals RP2T (when the upper rotary mold 21a is indexed downward to the ram 11, the mold position signal RPIT) is turned ON, and T
The axis pin signal LSP turns ON, and the upper and lower turrets 1
3 and 15 are fixed by positioning pins 27.
The index position confirmation signal LIPC, the T-axis pin signal and one mold position signal RP2R (or
RPIT) is ON, the index clamp solenoid signal ICLP turns ON, and the recess 145c of the coupling member 145 and the worm 69
A, 69b are engaged with one outer end 69e. In other words, in the signal system, the index clamp upper A and lower A signals LCPUA and LCPDA are
OFF, index clamp upper B, lower B
The signals LCPUB and LCPDB turn ON.

As mentioned above, when the coupling member 145 and the worms 69a, 69b are connected, the signal
Servo off signal SVF4 is activated by turning on LCPBU.
The signals LCPUB and LCPDB are turned ON, and the signals LCPUB and LCPDB are
When the index brake is turned on, one of the signals IBKA (or IBKB) of index brake solenoid A or B turns ON.
become. Therefore, the actuating devices 209a, 209
In this embodiment, one of the index brakes A and B is activated, and in this embodiment, the signals of the index brakes upper A and lower A are activated.
LBKUA and LBKDA are turned OFF, and the upper and lower connecting rods 73 and 81 can rotate. When the signals LBKUA and LBKDA are turned OFF, the interlock signal IT4 is turned ON, and the interlock of the motor 85 is released. interlock signal
ON of IT4 and motion command signal MC4
is ON (the rotating mold is commanded to rotate, so
(already in the ON state), the imposition signal ES4 is turned OFF and the rotary mold is rotated. Then, when the rotary mold rotates by the command value, the motion command signal MC4 turns OFF, and as this signal MC4 turns ON, the imposition signal ES4 turns ON and the motor 85 is stopped.
The rotary mold is rotated and indexed to the commanded position. Although the explanation is omitted, when the rotary mold is indexed below the ram 11, the motors that rotate the upper and lower turrets 13 and 15 are in an interlocked state.

Next, the configuration and operation of the control system will be explained.
As is clear from FIG. 12, first, when a movement command is input from the input section 219 of the NC control device to the condition calculation section 221 in order to move and position the workpiece W in the X-axis and Y-axis directions, the data is decoded by the distribution section 223 and distributed to each section. That is, the respective motor sections 229X and 229Y are driven via the comparison sections 225X and 225Y and the amplification sections 227X and 227Y, respectively, and the X-axis movement of the second carriage 33 and the first carriage 29 are driven.
A Y-axis movement is performed. The amount of movement of the workpiece W in the X-axis and Y-axis directions is determined by each motor section 229X, 229.
Each detection unit 231X, 231 connected to Y
Detected by Y. Each detected value is compared with the command value in the comparing sections 225X, 225Y, and when the difference becomes 0, each motor section 229X,
229Y is stopped. Furthermore, the completion of positioning is confirmed by the positioning completion confirmation section 233.

In addition, rotation commands for the upper and lower rotary molds are input to the input section 21.
9 to the condition calculation unit 221, the distribution unit 223 and the comparison unit 2
The motor 85 is driven via the amplifier 25R and the amplifier 227R. The upper and lower rotating molds 21a, 21 are rotated through the coupling member 145 by the drive of the motor 85.
b; 23a and 23b are rotated. The amount of rotation (rotation angle) of the upper and lower rotary molds is detected by a detection unit 231R provided in the motor 85, and the comparison unit 2
At step 25R, the command value and the detected value are compared. When the difference is 0, the rotation of the motor 85 is stopped and the difference is input to the positioning completion confirmation section 233. The connection between the upper and lower coupling members 145 and the rotating mold is detected by detection devices 161 and 163, and the detection signal is input to the condition calculation section 221. The conditions for driving the motor parts 229T of the upper and lower turrets 13 and 15 differ depending on the presence or absence of this detection signal, and when the coupling member 145 is in the connected state, the upper and lower turrets 13 and 15 are not rotated. .

The minimum conditions for rotation and indexing of the upper and lower turrets 13, 15 are as follows. That is, the upper and lower rotary molds are returned to the home position (rotation angle 0°) by the 0° command (command for returning to the home position) for the rotary molds from the condition calculation unit 221, and the positioning completion confirmation unit 233 confirms that the rotary molds are returned to the home position (rotation angle 0°). , and condition calculation unit 2
Based on the 0° command 235 signal from 21 and the positioning completion confirmation signal, the 0° confirmation unit 237 confirms that the rotary mold has returned to the home position.
Confirmation signal from 37 and the detection device 161, 16
When the signal 3 detecting the disconnection of the coupling member 145 is input to the condition confirmation section 221, the condition is that the upper and lower turrets 13 and 15 can rotate.

The condition calculation unit 221 includes upper and lower turrets 13,
When 15 rotation commands are input and various conditions are satisfied, the distribution section 223, the comparison section 225T, and the amplification section 22
The motor section 229T is driven via the motor 7T, and the upper and lower turrets 13 and 15 are rotated simultaneously. The rotation angles of the upper and lower turrets 13, 15 are detected by a detection section 231T, and compared with a command value in a comparison section 225T. Then, when the difference is 0, the motor section 229T is stopped, and the positioning completion confirmation section 233 confirms.

The various positioning operations described above are confirmed by the positioning completion confirmation section 233, and the command value zero confirmation section 239 confirms that the command value of the condition calculation section 221 is 0, and each of the NC internal punch commands 241 is confirmed. The signal of gate 24
3, gate 243 opens and ram 1
A pressing command for the mold is given by lowering step 1.

As can be understood from the above description of the embodiments, the present invention is, in short, provided with upper and lower turrets 13 and 15 facing each other rotatably supported on a frame, and a turret that rotates the upper and lower turrets 13 and 15. An upper and lower transmission device 117 is connected to one motor 85 mounted on the frame to rotate the upper and lower rotary molds 21a and 23a, which are equipped with a rotary drive device and are rotatably supported by the upper and lower turrets 13 and 15, respectively. 121 are interlocked and connected to each other, and the upper and lower coupling members 1 are detachable from each end 69e of the upper and lower worms 69a, 79a which are interlocked and connected to the upper and lower rotary molds 21a, 23a.
45 in the upper and lower transmission devices 117, 121, and a ram 11 that can freely press the upper rotary mold 21a is provided on the frame so as to be movable up and down. Then, when each end 69e of the upper and lower worms 69a, 79a and the upper and lower coupling members 145 are connected, the interlock of the motor 85 is released, and the turret rotation drive device is interlocked to make it unrotatable. , upper and lower rotating molds 21
a, 23a are located at the origin position, and the upper and lower worms 69a, 79a and the upper and lower coupling members 14
5, the interlock of the turret rotation drive device is released, the upper and lower rotating molds 21a and 23a are fixed so as not to rotate, the motor 85 is interlocked, and the upper and lower coupling members are 145 is mechanically fixed in a non-rotatable manner.

As is clear from the above configuration, according to the present invention, the upper and lower rotary molds 21a and 23a are rotated by one motor 85, and after the upper and lower rotary molds 21a and 23a are used, It always returns to the original position, and the upper and lower rotating molds 21a, 2
3a is returned to the original position and fixed, the motor 85 is interlocked, and the upper and lower coupling members 145, which are removably engaged with the upper and lower worms 69a and 79a that are interlocked and connected to the upper and lower rotary molds 21a and 23a, are interlocked. After being mechanically fixed, the upper and lower turrets 13, 15 are rotated and indexed.

Therefore, when the upper and lower turrets 13 and 15 rotate, the upper and lower rotary molds 21a and 23a are not rotated, and the upper and lower coupling members 145 are not rotated. . Therefore, when the upper and lower rotary molds 21a and 23a are used again, the upper and lower worms 69a and 79
a can be accurately and quickly connected to the upper and lower coupling members 145, and the upper and lower rotary molds 21a, 23a can be immediately moved to the original position without having to reposition them to the original position each time.
23a can be rotated and indexed.

Further, the upper and lower rotary molds 21a and 23a are simultaneously rotated by one motor 85, and when the rotary molds 21a and 23a are rotated, the turret rotation drive device is interlocked and the upper and lower turrets 13 are rotated. , 15, the motor 85 is interlocked and the upper and lower coupling members 145 are mechanically fixed, so that there is no interference between the rotations of the turret and the mold.

[Brief explanation of the drawing]

Figure 1 is a front view of the turret punch press, Figure 2
The figure is an enlarged sectional view taken along the - line in Figure 1,
The figure is a sectional view taken along the - line in Fig. 2, Fig. 4 is an enlarged sectional view taken along the - line in Fig. 2, Fig. 5 is an enlarged sectional view taken along the - line in Fig. 2, and Fig. 6 is an enlarged sectional view taken along the - line in Fig. The figure is an enlarged sectional view taken along the - line in Fig. 3, Fig. 7 is a sectional view taken along the - line in Fig. 6, Fig. 8 is a view taken along the - line in Fig. 7, and Figs. 9 and 10. Figure and 11th
Each figure is a time chart, and FIG. 12 is a block diagram. (Explanation of symbols representing main parts of drawings), 1
3, 15... Turret, 21a, 21b, 23
a, 23b... Rotating mold, 85... Motor, 14
5...Cut spring member, 11...Ram.

Claims (1)

[Claims] 1 Upper and lower turrets 13 and 15 facing each other are provided rotatably supported on a frame, and a turret rotation drive device for rotating the upper and lower turrets 13 and 15 is provided, and each of the upper and lower turrets 13 and 15 is rotatably supported. The upper and lower rotating molds 21
Upper and lower transmission devices 117, 1 are connected to one motor 85 mounted on the frame to rotate
21 are interlocked and connected to each other, and the upper and lower coupling members 145 are connected to the upper and lower transmission devices 117, which are removable from the respective ends 69e of the upper and lower worms 69a, 79a which are interlocked and connected to the upper and lower rotary molds 21a, 23a. In preparation for 121, the upper rotating mold 2
1a is a method for controlling a turret and a rotary mold in a turret punch press comprising a ram 11 that can freely press and is movable up and down on the frame, and each end 69e of the upper and lower worms 69a, 79a and the upper and lower couplings. When the member 145 is connected, the interlock of the motor 85 is released, and the turret rotation drive device is interlocked to make it unrotatable, so that the upper and lower rotary molds 21a and 23a are located at the origin position and the upper and lower rotary molds are When the connection between the worms 69a, 79a and the upper and lower coupling members 145 is released, the interlock of the turret rotation drive device is released, and the upper and lower rotary molds 21a, 23a are released.
is fixed in a non-rotatable manner, interlocks the motor 85, and connects the upper and lower coupling members 14.
5. A method for controlling a turret and a rotating mold in a turret punch press, characterized in that 5 is mechanically fixed in a non-rotatable manner.