JPH0484628A - Turret punch press - Google Patents

Abstract

PURPOSE:To shorten the time for mounting or attaching and detaching of a flanged die base by providing the die base having dies in stepped notch grooves in such a manner that the die base can be freely inserted and fixed or attached and detached from a horizontal direction. CONSTITUTION:Free attachable and detachable die set mounting regions 33 which allow the free attaching and detaching of die sets 29 are provided on upper and lower turrets 5, 7. The die set mounting regions 33 are provided with die exchangers 35 which exchange the die sets 29 by attaching and detaching the die sets in a horizontal direction. The die exchangers 35 are provided with detention releasing devices 65 which operate at the time of exchanging the die sets 29 by attaching and detaching the die sets mounted in the die mounting regions. The die exchanges are also provided with die holding parts 67 for holding the die sets 29 to be exchanged by attaching and detaching. The stepped notch groove 5V of nearly a U shape is formed in the die set mounting region 33 of the upper turret 5 and the flanged die base 91 held in the die holding part 67 is inserted and fixed from the horizontal direction into this groove or is attached or detached thereto and therefrom.

Description

[Detailed Description of the Invention] [Purpose of the Invention (Industrial Application Field) The present invention relates to a turret punch press, and more specifically, the present invention relates to a turret punch press, and more particularly, to removing a mold set mounted on a turret and removing a mold set to be used next. The present invention relates to a turret punch press equipped with a mold changing device for mounting a mold set on a turret.

(Prior Art) Conventionally, a mold base equipped with a mold mounted on the turret of a turret punch press has become large in size because a single mold base is equipped with a large number of molds. Therefore, in order to hold the mold base, a notch is not provided in the turret in terms of strength and structure, and the mold base is fixed by positioning pins fixed to the turret.

To install this mold base on the turret, place it in a position where it does not touch the positioning pins provided on the turret, insert the mold base horizontally, move it up and down, and install it on the turret. Ta.

(Problem to be Solved by the Invention) By the way, in order to mount a mold base with a mold on the turret of the conventional turret punch press mentioned above, the positioning pins fixed on the turret escape, so the metal must be removed during insertion. Mounting was performed by moving the mold base in two directions: horizontally and vertically.

For this reason, there are problems in that more time is lost than necessary, and that the structure of the mold changing device for mounting the mold base becomes complicated, making it impossible to reduce costs.

SUMMARY OF THE INVENTION An object of the present invention is to provide a turret punch press that has a simple structure, shortens the time required to attach or detach a mold base, and reduces costs, in order to improve the above-mentioned problems.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the second object, the present invention provides a mold set mounting area on the upper and lower turrets in which the mold set can be attached and detached, A locking release that releases the locking of the mold set installed in the mold set installation area is applied to a mold exchange device that horizontally attaches and detaches the mold set installed in the mold set installation area. The punch press is equipped with a turret punch press equipped with a mold holding section that can hold a mold set that can be attached and detached, and a roughly U-shaped stage ( A turret punch press was constructed by forming a =1 notch groove, and providing a flanged mold base with a mold in the stepped notch groove so that it could be inserted and fixedly removed from the horizontal direction.

(Function) By employing the turret punch press of the present invention, the upper and lower turrets are provided with mold set mounting areas where the mold set can be attached and removed.

A mold changing device is provided for horizontally attaching and detaching the mold set to and from the mold set mounting area. The mold holder is equipped with a lock release device that operates automatically, and a mold holder that holds a mold set that can be attached and detached.

A U-shaped stepped notch groove is formed in the mold set mounting area of the upper turret. Insert and fix from the horizontal direction, or remove.

As a result, attaching the mold base to the turret or detaching the mold base from the turret can be done with a simple operation and a simple configuration, thereby reducing time and cost.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

Since the structure of the turret punch press is already known,
Briefly explain. Referring to FIG. 5, the turret punch press 1 is equipped with a concave frame 3, and in the center of the concave frame 3 is a gate-shaped turret 9 consisting of a rotatable lower turret 5 and a lower turret 7. It is supported by frame 3.

Molds consisting of a plurality of punches and dies are mounted on the circumferences of the upper turret 5 and the lower turret 7 so as to face each other.

A machining position 11 is provided on the left side of the turret 9, and a mold selected from the molds is indexed to this machining position 11, and a drive device provided on the upper frame of the portal frame 3 As a result, the punch and the die work together to perform punching at a desired position on the workpiece W positioned at the processing position by vertical movement of the striker provided above the processing position.

A fixed center table 13 is provided at the lower part of the concave frame 3.
A movable table 15 that is movable in the Y-axis direction (left-right direction in FIG. 5) is provided on both sides of the table 3. When this movable table 15 is moved in the Y-axis direction, it is guided by a plurality of guides 17 extending in the Y-axis direction and is moved smoothly.

A carriage base 1 is mounted on the left end of the movable table 15.
is provided extending in the X-axis direction (front-back direction in FIG. 5), and this carriage bed 19 is provided with a workpiece movement and positioning device 21. That is, the carriage base 191 is provided with a carriage 23 that is movable in the X-axis direction, and a plurality of work clamps 25 for gripping the workpiece W are attached to the carriage 23 (=1).

2, the workpiece W gripped by the workpiece clamp 25 is moved by moving the movable table 15 in the Y-axis direction and moving the carriage 23 in the X-axis direction.
is moved in the X-axis and Y-axis directions, and the desired position for machining is positioned at the processing position and punching is performed.

A workpiece moving and positioning device 21 is provided on the left side with the turret l-9 in the center, and a mold holding area 27 is provided in the portal frame 3 on the right side opposite to the workpiece moving and positioning device 21. ing.

In this mold holding area 27, a plurality of mold cellars I/29 consisting of an appropriate number of punches and dies are arranged at appropriate intervals in the Y-axis direction, and a mold set is stored which is also arranged vertically and facing each other. A section 31 is provided. Moreover, the two mold sets arranged in the mold set storage section 31 are configured to be movable in the Z-axis direction (vertical direction in FIG. 5).

On the circumference of the turret 9 consisting of the upper turret 5 and the lower turret 7, there are a plurality of mold set mounting areas 33 cut out into, for example, a substantially U-shape in order to mount two mold sets (in this embodiment). 2) are provided at appropriate intervals.

Furthermore, in FIG. 5, one of the mold set attachment areas 33 is a mold exchange position 35.

This mold exchange position 35 and an automatic mold exchange device 37 movable in the X-axis and Y-axis directions are located on the front side of the mold set storage section 31.
The automatic mold exchange device 37 is provided with three housings (in this embodiment, three housings) which are at least the same mold mounting parts as the plurality of mold set mounting areas 33. There is.

More specifically, referring to FIGS. 5, 6 and 7, the lower frame 41 of the turret punch press 1 includes:
In FIG. 6, a plurality of guide rails 43 are provided in parallel extending in the Y-axis direction, which is a direction perpendicular to the paper surface, and a plurality of guide members 45 are provided on the guide rails 43.
Each housing 39 is integrally provided via the housing 39.

Ball screws 49 are rotatably supported on bearings 47 provided on both sides of the lower frame 41, and a nut portion 51 is screwed into the four ball screws. This nut member 51 is attached to the lower part of the housing 39.

With the #f11 configuration described above, when the drive motor (not shown) is driven, the ball screw 49 rotates, so the three housings are moved in the Y-axis direction via the nut portion 4-51. Note that when the housing 39 is moved in the Y (1111 direction), it is guided by the guide rail 43, so that it can be moved smoothly.

A plurality of guide rails 53 are provided on the bottom plate 39U of the housing 39 at appropriate intervals and extend in the X-axis direction. Each guide rail 53 has a plurality of guide members 5.
An X-axis gear ledge 57 is provided via 5.

The right side wall 39 in FIG. 6 of the housing 39
An X-axis circumferential cylinder 61 is attached to F, and the tip of a piston rod 63 mounted in this X-axis circumferential cylinder 61 is attached to the upper right side wall of the X-axis circumferential carriage 57.

With the above configuration, when the X-axis peripheral cylinder 61 is operated,
The X-axis carriage 57 is connected to the
It will be moved in the axial direction. Note that when the X-carrier slide 57 is moved in the X-axis direction, it is guided by the guide rail 53 and moved smoothly.

Each housing 39 is provided with a lock release device 65, and the X-axis gear ledge 57 is provided with a mold holding section 67 for holding a mold set. That is, as shown in FIGS. 6 and 7, the locking release device 65 includes locking members 7 ], P, and 71D on both upper and lower sides of each housing 39 via guide members 69. X
This locking member 7] is provided extending in the axial direction;
P, 7]D are connected by a connecting member 73 at the right end in FIG.

In FIG. 6 for each of the three housings] 0 A lock release cylinder 75 is provided on the right side wall 39F, and a piston rod 77 is attached to this lock release cylinder 75. The tip of this piston rod 77 is attached to the connecting member 73.

With the above configuration, when the unlocking cylinder 75 is operated, the locking member 71 connected to the connecting member 73 via the piston rod 77. P, 7], D will be moved in the X-axis direction. Note that the locking members 71, P, 71. D
When the guide portions 69 are moved in the X-axis direction, each guide portion 69 is guided along each housing 39.

As shown in FIGS. 6 and 7, the mold holding section 67 includes a holding bar 79 that holds a mold set at the top and bottom of the left side of the X-axis gear ledge 57 in FIG. At the tip of each holding bar 79, a chuck device 81P, 81. D is installed.

Each of the holding bars 79 is integrated with a connecting bar 83 that protrudes to the right within each X-axis gear ledge 57 in FIG. 6, and each connecting bar 83 is connected by a connecting member 85.

A holding cylinder 87 is provided in each of the X-axis gear ledges 57, and the tip (sixth
A piston rod 89 is attached to the right end (in the figure), and the tip of the piston rod 89 is attached to the connecting member 85.

With the above configuration, when the holding cylinder 87 is operated,
The chuck devices 81P and 81D are moved in the X-axis direction via the piston rod 89, the connecting member 85, and the connecting bar 83.

A replaceable mold set is mounted on a plurality of mold mounting areas 33 provided on the upper turret 5 and lower turret 7 of the turret 9. More specifically, as shown in FIGS. 1 to 4 and 6, the mold mounting area 3 of the upper turret 5
3, a U-shaped notch groove 5v, and this notch groove 5v.
A stepped portion 5W is formed on both sides of the notch groove 5V.
A mold base 91 (also referred to as a mold holder), which is U-shaped and has flanges 90 on both sides, is mounted with an appropriate number (two in Figure 6) of bunches P, and is moved toward the right in Figure 3. It can be installed horizontally from the top or removed. In addition, an appropriate number of punches P are attached to the mold base 9.
1 is well known, and detailed explanation thereof will be omitted.

In FIG. 3, the upper and lower right side of the mold base 91 (second
An engaging portion 95 having an engaging portion 93, which is, for example, a conical engaging hole, is mounted on both the left and right sides in the figure.

Further, a locking member 97, which is formed of, for example, a locking pin, and which locks onto this engaging portion 93 is provided so as not to slide vertically within the turret 5. A notch 5C is formed in the upper turret 5 at the lower part of the locking member 97, and nine L-shaped support blocks are attached to the notch 5C with a plurality of holes. It is being

This support block 99 has a hole penetrating in the vertical direction, into which a threaded rod 101 is inserted, and the tip of the threaded rod 101 is attached to the locking member 97. The lower part of this threaded rod 101 is the cam follower 1
03 is integrated into a support block 105 that rotatably supports it.

A spring 107 is interposed between the locking member 97 and the support block 99, and the spring 107 is always biased upwardly.

Said notch? A fixing member 109 is provided on the upper surface of the mold base 91 attached to the Ti 5 V to prevent the mold base 91 from protruding upward and coming off.

This fixing member 109 has a U-shape as shown in FIG.
The bin 111 is a bearing 11 located on the two sides of the upper turret 5.
It is supported by 3.

With the above configuration, the fixing part Ul' 109 swings around the pin 111 provided in the bearing 1]3 as a rotation center.

An arcuate contact surface 15 that contacts the mold base 91 is formed at the lower end of the lever 09a, and the base 109b of the fixing member 109 is connected to the pole I-117 erected on the Niraret 5. It is attached to the bolt 117 and is constantly urged upward (upward in FIG. 1) by a coil spring 9iii119 wound around the bolt 117.

On the other hand, above the base portion 109b of the fixing portion +J' 109, a driving member 123 is provided which corresponds to a bracket 121 vertically provided from the concave frame 3. This driving member 123 is, for example, a cylinder operated by fluid pressure,
piston] 25.

With the above configuration, when the cylinder serving as the driving member 123 is actuated to cause the piston 125 to protrude, the piston] 25 presses the base portion 109b of the fixing member 109 against the elastic force of the bullet 119. The bar 109a of the fixing member]09 rotates about a shaft 111, and the contact surface 115 of the bar 109a is separated from the upper surface of the mold base 91. In this state, the mold base 91 can be removed from the upper turret 5 or removed by 1Φ.

The cylinder, which is the driving member 123, is actuated to move the piston 12.
When the mold base 91 is contracted, the fixing member 109 is rotated by the elastic force of the bullet 119, and the contact surface 115 provided at the tip of the bar 109a presses the upper surface of the mold base 91 and fixes it.

An appropriate number (two in FIG. 6) of dies D are inserted into the U-shaped cutout groove 7V as the mold mounting area 33 of the lower turret 7.
A U-shaped mold base 127 (also referred to as a mold holder) on which is mounted a mold base 127 (also referred to as a mold holder) can be mounted or removed from the horizontal direction from the right side in FIG.

Note that the structure in which an appropriate number of dies D are attached to the mold base 127 is already known, and detailed explanation thereof will be omitted.

At the top and bottom of the right side of the mold base 127 in FIG. 4 (on both left and right sides in FIG. 2), engagement members 13 having engagement portions 129, which are, for example, conical engagement holes, are mounted. . Further, a locking member 133 made of, for example, a locking pin that locks on this engaging portion 129 is provided to slide vertically within a support member 135 attached to the lower turret 7. A notch 7C is formed in the lower turret 7 at the lower part of the locking member 133, and an L-shaped support block 137 is attached to the notch 7C with a plurality of bolts.

A vertically penetrating hole is formed in the support block 137 of No. 1, and 13 threaded rods are inserted into these holes.
=j is kicked out. The lower portions of the three threaded rods are integrated into a support block 143 that rotatably supports the cam follower 41. A spring co 45 is interposed between the locking member 133 and the support block 137,
The spring] 45 is always biased upward, which is the biasing direction.

A plurality of bolts 149 are attached to the upper and lower surfaces of the mold base 127 and the support member 135 in FIG. It is installed in In the front side (the right side in FIG. 4) of the holding member 147, an elastic part 151 made of rubber or the like is held by a plurality of holes 1-1, 53, and a mold base 27 is inserted. This serves to prevent the mold base 127 from being scratched when it is removed.

With the above configuration, as shown in FIG. 1, the locking members 71P and 71D move to the left in FIG. 1, and the locking portion +A7:1. P, 71. When the inclined part of the tip of D rides on the cam follower 103, 1.41, the support block 105, 143 and the threaded rod 1.01. ．． 1.3
The locking members 97, 133 are connected to the springs 107, 133 through 9.
145 and descends against the urging force of the engaging member 95.1.3.
When the mold base 91.127 is released from the engagement portions 93, 1.29 of 1, the support members 135 of the upper turret 5 and lower turret 1-7 become free, and the bunch P
The mold base 91, 1.27 with the 1 die D mounted thereon is now in a state where it can be removed from the mold set mounting area 33.

As shown in FIG. 6, the mold bases 9], 127 are provided with chuck devices 81. P and 81D move to the left in FIG. 6 to form the mold base 9].

Holding holes 155 and 1.57, which are U-shaped holes, for example, are formed to hold the holding holes 127. therefore,
Chuck device 8], P, 81-D are holding holes 155
．． When attached to 157, the mold base 91 12 is automatically attached.
7 will be retained. Note that the chuck device 8
1 P, 81D have a structure similar to that of a well-known collet chuck with a holding hole] 55.1. ．． When 57 is attached, it is automatically held.

Next, the mold set 29 of this embodiment is placed in the mold set storage part 3.
The mold set 29 can be removed from the mold set mounting area 33 of the turret 9 located at the mold exchange position 35, or removed from the mold set mounting area 33 located at the mold exchange position and stored. The operation of exchanging the molds stored in the section 31 will be explained.

First, move the housing 39 of the mold changing device 37 to the right in the Y-axis direction in FIG.
position at the required position.

Then, the X-axis cylinder 61 is operated to move the X-axis gear ledge 57 toward the mold set storage section 31, and the holding cylinder 87 is further operated to move the chuck devices 81P, 8
1. D moves backward in the X-axis direction in FIG. 5, and the mold base 91. , ] 17 to hold two mold sets in this embodiment. It is then returned to its original position.

Next, the three housings are moved to the left in the Y-axis direction in FIG. 5, and the empty housing 39 in which the two mold sets are not mounted is stopped at the mold exchange position 35. X
The X-axis gear ledge 57 is moved to the left in FIG. 6 by operating the shaft angle cylinder 6], and stopped when it comes near the turret 9.

On the other hand, the fixing member 109 provided on the upper turret 5 presses the bar 109a against the elastic force of the bullet 119 built in the base 109b of the fixing member 109 by the operation of the drive unit +A' 123. The contact surface of the bar]09a]5 is separated from the upper surface of the mold base 9].

Next, when the lock release cylinder 75 is operated, the lock portion 4. l'71P, 71D ride on the cam follower 103.1.41 supported by the support member 135 of the upper turret 5 and lower turret 7 via the support block 99.1.41, thereby locking part keys 97.1. 33 is lowered and the engaging portion 93 of the engaging member 95.1.3] is disengaged from the mold base 9].

] 27 are in a free state with respect to the supporting members ] 35 of the upper turret 5 and lower turret 7, respectively.

After that, the holding cylinder 87 is operated to hold the mold base 9.
] , , 1.27 Retaining holes 155.1.5
7, a chuck device 81. P, 81-D are inserted and the mold base 91. ．． Hold 1.27. In this state, the mold base 91 of the mold set 29 is moved by moving the locking portion I4'71P,7]D to the right in FIG. 1 and returning it to its original position. ．． 127 is removed from the mold set mounting area 33. In addition, when the locking parts A, l' 71P, 71D return to their original positions, the locking members 97, 133 are lifted upward by the force of the spring 1.071.45 (=1). .

Next, move the housing 39 slightly in the Y-axis direction to position the housing 39 holding the mold set 29 at the mold exchange position 35, and move the X-axis gear lens 57 in the X-axis direction as shown in FIG. After that, the lock release cylinder 75 is operated to avoid lowering the locking members 97 and 133, and the mold set 29 is inserted into the mold set mounting area 33.

With the mold set 29 inserted into the mold set mounting area 33, the holding cylinder 83 is operated, and the chuck device 8
1P, 81. D from the holding holes 155, 157, the locking release cylinder 75 is activated, and the locking member 71 is removed.
．． P, 71. When D is moved to the right in FIG.
The urging force of the engaging member 95,1.31 causes the engaging portion 93,1.
29, the mold cellar j 29 is set in the mold set mounting area 33.

Thereafter, when the cylinder serving as the driving member 123 is actuated to contract the piston 125, the fixed portion 109
The mold base 91 is rotated by the elastic force of the bar 109a, and the mold base 91 is pressed and fixed by the contact surface 15 provided at the tip of the bar 109a.

In the manner described above, rotate the upper turret 5 and lower turret l-7 to move another mold set mounting area 33 to the mold exchange position 3.
After indexing 5, the automatic mold exchange device 37 is activated,
The two mold sets set in the mold set mounting area 3B are removed, and the other mold sets 29 mounted on the three housings are mounted in the mold set mounting area 33.

In this way, the upper and lower turrets 5,
7 to replace the membrane of the mold set 29. 2. Lower turret l-5, 7 mold base 91. ．． 1-27, use the locking part +4'97. biased by springs 1.07 and 1.45. 133 is the counterpart engagement member 95, 13
It is fitted into the conical engaging portion 93129 provided in 1.

Therefore, positioning accuracy can be improved.

In addition, the mold base 9 attached to the lower turret 5 is
The key is to securely fix the mold base 91 with the fixing part 109, and the drive member 123, which is a drive source for suppressing and fixing the mold base 91 with the fixing part 109, is not provided on the upper turret 5, but instead is mounted on the concave frame 3. It is provided for. Therefore, it is maintenance-free and has a simpler structure than the conventional model in which a hydraulic cylinder is installed on the turret. It is possible to prevent an accident in which the base 9 becomes loose.

Furthermore, the locking member 97, 1.33 is connected to the mating engagement member 95.
131, use the locking member 71.1 provided on the mold changing device 37. By pushing down the cam follower 1.03, 141 by advancing P, 71D. For this reason,
It is certain that it works.

As described above, the shape of the mold mounting area 33 of the upper turret 5 was made into a hollow U-shape, and the stepped portion 5W was formed. The mold base 9] is inserted into this U-shaped groove 5V, and the flange 90 provided on the mold base 91 is brought into contact with the step portion 5W and fixed. Therefore, positioning and fixing can be achieved by inserting only in the horizontal direction, and it is possible to shorten the work time for mounting or detaching.

Note that the present invention is not limited to the embodiments described above, and can be implemented in other embodiments by making appropriate changes. For example, in this embodiment, the turret 9 has two mold set mounting areas 33, and the mold changing device 37 has three housings 39, which are mold mounting parts. It is also possible to further increase the number of housings 39 and provide the mold changing device 37 with at least the same number of housings 39 as the number of mold set mounting areas 33.

Furthermore, although the explanation has been given using a cylinder operated by fluid pressure as an example of the drive member 123, it is also possible to use a drive member operated by a screw mechanism such as a motor, or an electromagnetic type or the like.

[Effects of the Invention] As can be understood from the description of the embodiments described above, according to the present invention, since the structure is as described in the claims, the mold set mounting area of the turret is The mold cellar I can be removed or installed horizontally using a mold changing device.

Therefore, there is no up and down movement when installing and removing the mold set, and the exchange time can be shortened by simple operation. Furthermore, the structure of the exchange device is simplified and costs can be reduced.

[Brief explanation of the drawing]

FIG. 1 shows the main parts of the invention, and FIG. 6 is an enlarged sectional view taken in the direction of arrow I in FIG. 6. FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1. FIG. 4 is a plan view of the lower turret in FIG. 1, FIG. 5 is a perspective view of a turret punch press according to an embodiment of the present invention, and FIG. 6 is a plan view of the lower turret in FIG. 5. FIG. 7 is an enlarged cross-sectional view taken in the direction of arrows, and is a cross-sectional view taken along the line ■-■ in FIG. 6. 1. Turret punch press 5. Upper turret 5. Notch groove 5W. Step 7. Lower turret 29. Mold top) I. 33. Mold set mounting area 35. Mold changing device 65... Lock release device 67... Mold holding part 90... Flange... Mold base

Claims (1)

[Claims] The upper and lower turrets are provided with mold set mounting areas in which the mold sets can be attached and detached, and the mold set installed in the mold set attachment areas is installed in the mold exchange device for horizontally attaching and detaching the die sets. The turret punch press is equipped with a locking release device for unlocking a mold set mounted on a mold set mounting area, and a mold holding part that can freely hold a mold set to be attached and replaced; A roughly U-shaped stepped notch groove is formed in the mold set mounting area provided on the upper turret, and a flanged mold base equipped with a mold is inserted horizontally into this stepped notch groove. A turret punch press characterized by being fixed or detachable.