JPH089074B2 - Tallet punch press - Google Patents

Description

The present invention relates to a turret punch press, and more particularly, to a punch disposed on an upper turret and a die disposed on a lower turret. The present invention relates to a turret punch press in which and are automatically rotated.

(Prior Art) Conventionally, the dies (punch and die) used in the turret punch press have different directional characteristics even if the dies have the same shape, even if the shapes are the same. From
Since the same mold cannot be used, it is necessary to separately prepare molds having different directions.

In such a case, there is known a method of attaching a worm wheel to the punches and dies that are opposed to each other around the axial center portions of the upper and lower turrets of the punches and dies arranged in the upper turret and the lower turret for indexing. There is.

(Problems to be Solved by the Invention) By the way, in the above-mentioned index method, the so-called toe index method, since the worm wheel is used, the index motor must be made large, and deceleration can be made large. There was a problem that I could not.

In order to solve the above problems, the object of the present invention is to provide a turret punch press that does not use a worm wheel, adopts speed reduction by gears, downsizes an index motor, and allows easy and automatic indexing. To provide.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention has an upper turret provided with an appropriate number of punches and an appropriate number of dies corresponding to the punches. A turret punch press having a lower turret, wherein a drive unit for rotating a punch and a die is provided in each of the upper turret and the lower turret,
Drive boxes for driving the respective drive units are provided by being connected to upper and lower shafts that are synchronously rotated by an index motor, and the drive boxes can be vertically displaced with respect to the respective drive units. A turret punch press was constructed by disconnecting the drive unit.

(Operation) By adopting the present invention, when the punches and the dies provided in the upper turret and the lower turret are rotated, the index motors are driven, and the shafts respectively coupled to the index motors and rotated synchronously are driven. The punches and dies are rotated by lowering and raising the drive boxes provided, respectively, and transmitting the rotations to the drive units provided on the upper turret and the lower turret. When disconnecting the drive box from the drive unit, the drive box is moved up and down with respect to the drive unit to release the connection. Since the drive unit performs deceleration by gears, the index motor can be downsized and the reduction ratio can be increased.

(Example) Hereinafter, the Example of this invention is described in detail based on drawing.

Referring to FIGS. 1 and 2, the punch press 1
Is composed of a C-shaped frame 5 having a pocket portion 3. A fixed base 7 for supporting a plate-shaped work W is placed on the left side of the front of the C-shaped frame 5 in FIG.
A positioning device 9 for positioning the work W is provided on the fixed table 7.

A turret device 19 having a disc-shaped upper turret 13 provided with a punch 11 and a disc-shaped lower turret 17 provided with a die 15 is provided at the foot portion 3 of the C-shaped frame 5.

The upper frame 5U of the C-shaped frame 5 has a ram 23 provided with a striker 21 for hitting the punch 11 of the upper turret 13.
Turret device
Shot pin unit 25 forming part of 19 is the upper frame
It is supported by 5U and lower frame 5D.

A crank shaft 29 is attached to the upper portion of the ram 23 via a connecting rod 27.
Behind the flywheel as shown in Fig. 2
31 is rotatably supported. Its flywheel 31
Pulley via belt 33 such as a timing belt
35 is attached to the output shaft of the drive motor 37.

By driving the drive motor 37, the pulley 35,
Crankshaft 29 via belt 33 and flywheel 31
Is rotated. When the crankshaft 29 is rotated, the ram 23 moves up and down via the connecting rod 27. When the ram 23 moves up and down, the striker 21 moves up and down, and the punch 11 mounted on the upper turret 13 moves up and down, so that the work W positioned and fixed on the die 15 is subjected to predetermined punching. become.

The fixed base 7 is a work table having a plurality of ball bearings which are movable in the left and right directions in FIG.
39 is provided, and the work table 39 is provided with a carriage 41 that can move up and down in FIG.
The positioning device 9 is provided on the carriage 41. A plurality of work clamp devices 43 are provided at the tip of the positioning device 9, and the work W is clamped by the work clamp device 43 so that the work W is movable in the left-right direction and the up-down direction in FIG. Has become.

Although not shown, the upper turret 13 and the lower turret 17 are rotatably rotated by a rotary driving device provided in the C-shaped frame 5 to index and select a predetermined punch 11 and die 13. It has become so.

In FIG. 2, below the C-shaped frame 5, punches 11 mounted on the upper turret 13 and lower turret 17, respectively,
An index motor 45 for rotating the die 15 is provided. The index motor 45 has a plurality of gears,
A gear box 47 incorporating a pulley and a belt is connected. Shafts 53 and 55 are connected to the gear box 47 via universal joints 49 and 51.

With the above configuration, when the index motor 45 is driven, the rotation is synchronously transmitted to the shafts 53 and 55 via the gear box 47 and the universal joints 49 and 51.

The shafts 53 and 55 are connected to drive boxes 57 and 59 for rotating the punch 11 and the die 15 mounted on the upper turret 13 and the lower turret 17, respectively. More specifically, as shown in FIG. 3, the shafts 53, 55 are rotatably supported by the drive boxes 57, 59, and the one end of the shafts 53, 55 has one bevel gear 61, 63 is installed.

One bevel gear 61, 63 is meshed with the other bevel gear 69, 71 attached to one end of a shaft 65, 67 extending vertically in FIG. The shaft 65,
67 is rotatably supported by drive boxes 57 and 59, respectively.

The other end of the shaft 65 shown in FIG.
An engaging member 73 having 73A is attached.

As shown in FIGS. 3 and 4, a vertical movement cylinder 75 for vertically moving the drive box 57 is attached to the upper portion of the drive box 57 by a plurality of bolts or the like. A support plate 77 is integrated with the upper frame 5U by a plurality of bolts and the like, and a plurality of guide bars 79A, 79B are attached to the support plate 77 by a plurality of bolts and the like.

Bearing guides 81A and 81B are provided on the guide bars 79A and 79B.
Are provided so as to be slidable in the vertical direction, and their bearing guides 81A and 81B are attached to the outer peripheral portion of the drive box 57.

An engaging member 73 is attached to the shaft 65 via a ring member 83.
Are integrated, and a key 85 is integrated at one end of the ring member 83. A key guide 87 is attached to the lower end of the guide bar 79B.

On the other hand, a gear 89 is fitted in the press center of the upper turret 13, and the punch 11 is mounted in the gear 89. The punch 11 is moved up and down by the strike of the striker 21. A gear 91 meshed with the gear 89 is fitted on a shaft 93 extending vertically in FIG. The shaft 93 is rotatably supported by a support member 95 integrated with the upper turret 13. A ring member 97 is integrated with the upper end of the shaft 93, and a lock pin 99 is integrated with the ring member 97 at a position corresponding to the engaging portion 73A of the engaging member 73.

With the above configuration, the rotation transmitted to the shaft 53 is a gear.
It is transmitted to the shaft 65 via 61 and 69. The shaft 65 rotates, and the key 85 provided at one end of the ring member 83 integrated with the shaft 65 stops at the origin position by the NC command and is aligned with the key guide 87.

Next, when the vertical movement cylinder 75 is operated, the gear box 57 moves down with respect to the guide bars 79A and 79B. When the gear box 57 descends, the engagement portion 73A of the engagement member 73 is engaged with the lock pin 99. Lock pin 99 is shaft 93
, The rotation of the shaft 65 is transmitted to the shaft 93. The rotation transmitted to the shaft 93 causes the punch 11 to rotate to a predetermined position via the gears 91 and 89.

As shown in FIG. 5, a vertical movement cylinder 101 for vertically moving the drive box 59 is provided on the side wall of the gear box 59 and is supported by the lower frame 5D.
It is attached to 03 with multiple bolts. Further, the support member 103 is provided with a plurality of guide bars 105A,
105B is installed.

The guide bar 105A, 105B has a bearing guide 107A,
107B is provided slidably in the vertical direction, and its bearing guides 107A and 107B are attached to the outer peripheral portion of the drive box 59. A ring member 10 is provided on the shaft 67.
The lock pin 111 is integrated via the 9 pin.

A piston rod 113 extending vertically is attached to the upper part of the vertical movement cylinder 101. A swing guide bar 117 is swingably supported on the upper portion of the guide bar 105A with a pin 115 as a fulcrum. Swing guide bar 1
One end of 17 is attached to the piston rod 113 with a pin 119, and the other end is attached to the upper end of the drive box 59 with a pin 121.

As shown in FIG. 5, a key 1 is provided at one end of the ring member 109.
23 is integrated, and a key guide 125 is attached to the upper end of the guide bar 105B with bolts or the like.

On the other hand, a gear 127 is fitted in the press center of the lower turret 17, and the die 15 is mounted in the gear 127. A gear 129 meshed with the gear 127 is fitted on a shaft 131 extending in the vertical direction in FIG. The shaft 131 is rotatably supported by a support member 133 integrated with the lower turret 17. An engaging member 135 having an engaging portion 135A is integrated with the lower end of the shaft 131.

With the above configuration, the rotation transmitted to the shaft 55 is a gear.
It is transmitted to the shaft 67 via 63 and 71. When the shaft 67 rotates, the key 123 provided at one end of the ring member 109 integrated with the shaft 67 is stopped at the origin position by the NC command and aligned with the key guide 125.

Next, when the vertically moving cylinder 101 is operated, the piston rod 113 is pulled downward in FIG. 5, whereby the swing guide bar 117 swings with the pin 115 as a fulcrum, and the gear box 59 moves to the guide bars 105A and 105B. To rise. When the gear box 59 moves up, the lock pin 111 is engaged with the engaging portion 135A of the engaging member 135. Engaging member 135
Is integrated with the shaft 131, the shaft 6
The rotation of 7 is transmitted to the shaft 131. The rotation transmitted to the shaft 131 causes the die 15 to rotate to a predetermined position via the gears 129 and 127.

Since the shaft 53 and the shaft 55 are synchronously rotated as described above, the punch 11 and the die 15 are synchronously rotated without needing to explain.

As described above, in order to rotate the punch 11 and the die 15 in synchronization, the drive boxes 57 and 59 connected to the shafts 53 and 55 are moved downward and upward in synchronization, so that the upper turret 13,
The punch 11 and the die 15 can be easily and automatically rotated by being connected to the driving unit of the lower turret 17. Since the drive unit performs deceleration by the gear, the index motor 45 can be downsized and the reduction ratio can be increased.

The disconnection between the drive parts of the upper turret 13 and the lower turret 17 and the drive boxes 57 and 59 can be easily performed by raising and lowering the vertically moving cylinders 75 and 101.

A locking device 137 is provided as shown in FIGS. 6 and 7 so that the upper turret 17 does not rotate when the connection between the drive portion of the upper turret 13 and the drive box 57 is cut off. ing. That is, in FIGS. 6 and 7, one end of the pin 139 is attached to the flat plate support plate 141, and the other end of the pin 139 is attached to the gear box 57 as shown in FIG.

A pin 143 is attached to substantially the center of the support plate 141, and the pin 143 has a cylindrical shape.
It is attached to 45. The supporting member 145 is the upper turret 1.
It is attached to a part of 3 with multiple bolts. A spring 147 is provided in a groove formed in the lower portion of the pin 143. A pin 149 is provided at the other end of the support plate 141 so as to project upward.

On the other hand, the lower pin 149 in a part of the gear 89
A hole 89H for locking is formed at a position corresponding to.

With the above configuration, when the drive box 57 is lifted from the unlocked state shown in FIG. 7 to disconnect the drive box 57 from the drive portion of the upper turret 13, the pin 139 moves up. Support plate 1 due to pin 139 rising
41 also rises due to the urging force of the spring 147, and the pin 149 engages with the hole 89H of the gear 89. Thus gear 89 and gear 91
That is, the upper turret 13 is locked so as not to rotate. As a result, there is no need to perform positioning adjustment when rotating again.

On the other hand, a locking device 151 is provided as shown in FIGS. 8 and 9 so that the lower turret 17 does not rotate when the connection between the drive part of the lower turret 17 and the drive box 59 is cut off. Has been. That is, as shown in FIG. 5, the pin 152 is attached to one side wall of the drive box 59. The pin 152 is located at the lower position in FIGS. 8 and 9. A cylindrical ring member 153 is provided in the groove of the lower turret 17, and a pin 155 extending vertically in FIG. 9 is provided at one end of the ring member 153.
Is slidably mounted, and the other end of the ring member 153 is slidably mounted with another pin 157 extending vertically in FIG.

A spring 159 is provided in a groove formed in the upper portion of the pin 157. A plate 165 is pivotally supported by a pin 163 on a bar 161 protruding downward from the ring member 153. One end of the plate 165 is located below the pin 155 and the plate 165 is
The other end of is attached to the lower part of the pin 157.

On the other hand, the lower pin 157 in a part of the gear 127.
A locking hole 127H is formed at a position corresponding to.

With the above structure, when the drive box 59 is lowered from the unlocked state shown in FIG. 9 to disconnect the drive box 59 from the drive portion of the lower turret 17, the pin 152 contacts the lower end portion of the pin 157. Descend from. Pin 152
The pin 157 also descends due to the urging force of the spring 159 as a result of lowering. When the pin 157 descends, the plate 165 pivots clockwise in FIG. 9 around the pin 163 as a fulcrum, and the pin 155 rises and engages with the hole 127H of the gear 127. Thus, the gear 127 and the gear 129, that is, the lower turret 17 is locked so as not to rotate. As a result, there is no need to perform positioning adjustment when rotating again.

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

[Effects of the Invention] As can be understood from the above description of the embodiments, according to the present invention, each drive box is connected to the upper and lower shafts that are synchronously rotated by the index motor,
The drive box can be lowered and raised with respect to the respective drive units, and the rotation can be transmitted to the drive units provided on the upper turret and the lower turret to rotate the punch and the die.

When the rotation is released, the drive box can be moved up and down with respect to the drive unit to disconnect the connection.

Since the drive unit performs deceleration by the gear, the index motor can be downsized and the reduction ratio can be increased.

[Brief description of drawings]

1 is a front view of a turret punch press embodying the present invention, and FIG. 2 is a plan view of FIG. FIG. 3 is an enlarged cross-sectional view of an upper turret and a lower turret, which are main parts of the present invention, FIG. 4 is a view on arrow IV in FIG. 3, FIG. 5 is a view on arrow V in FIG. Fig. 6 is a view on arrow VI in Fig. 3, and Fig. 7 is VI on Fig. 6.
A cross-sectional view taken along the line I-VII, FIG. 8 shows VIII in FIG.
FIG. 9 and FIG. 9 are sectional views taken along the line IX-IX in FIG. 1 ... Punch press, 5 ... C type frame 11 ... Punch, 13 ... Upper turret 15 ... Die, 17 ... Lower turret 45 ... Index motor 53,55 ... Shaft 57,59 ... Drive box 75,101 ... Vertical cylinder

Claims (1)

[Claims] 1. An upper turret provided with an appropriate number of punches,
A turret punch press equipped with the punch and a lower turret provided with an appropriate number of dies corresponding to the punches, wherein driving units for rotating the punch and the die are provided in the upper turret and the lower turret, respectively. Drive boxes for driving the drive units are connected to upper and lower shafts that are synchronously rotated by an index motor, and the drive boxes are vertically displaceable with respect to the respective drive units. A turret punch press characterized in that it can be freely connected and disconnected.