JPS5844924A - Turret punch press - Google Patents

Abstract

PURPOSE:To connect and interlock a die and a rotating device with simple structure without using a clutch by enabling an interlocking member and the end of upper and lower transmission shaft connected and interlocked with rotatable dies on the upper and lower turrets to engage freely simultaneously with positioning of the turrets. CONSTITUTION:To perform blanking using a rotary die after ordinary blanking, upper and lower turrets 13, 19 are rotated properly and upper and lower rotary die holders 37a, 41a are indexed and positioned. Then, the first and second engaging parts 89 formed at the end of the first and second interlocking member 39, 43 connected with upper and lower dies is engaged naturally with the second engaging part 91 formed at the end of the first and second transmission shafts 47, 51. Accordingly, when a rotation driving device 53 is driven after releasing fixed holding devices 123, 85, holders 37a, 37b, 41a, 41b can rotate properly through shafts 47, 51 which are connected and interlocked with the driving device.

Description

[Detailed description of the invention] This invention relates to a turret punch press.

A turret punch press is generally equipped with a large number of upper molds having disk-shaped or fan-shaped upper turrets (K), and a lower mold (HC) which faces the upper mold and is equipped with a lower turret (HC). In such a turret punch press, even when performing punching of the same shape, if the shape has directionality and the direction changes, k is It was necessary to attach the lower molds to the upper and lower turrets, each with a different orientation. Therefore, there was an interlayer between the upper and lower metal parts that were attached more than the upper and lower turrets. In recent years, in order to solve the above problems,
Upper and lower turrets) A technology has been developed in which the upper and lower molds are rotatably mounted.

However, in the technology developed in recent years, a rotatable upper and lower turret (K) is equipped with upper and lower molds, and a rotary drive device (G) is used to rotate the upper and lower molds. Since it is attached to the frame of a turret haunch press, it is necessary to interlock the rotary drive device and the upper and lower molds via a clutch device. Therefore, it is necessary to control the clutch device by one person, and the time from indexing the upper and lower turrets to starting machining is relatively long, and the configuration becomes complicated. was there.

This invention was invented in view of the above-mentioned problems and C.
The first purpose is to provide a means for interlocking and connecting the upper and lower molds mounted on the upper and lower towers (K) and the rotary drive device mounted on the frame with an extremely simple structure without using a special clutch device. This is what we provide.

The second purpose is that when the upper and lower turrets are indexed and positioned at the predetermined positions, the upper and lower molds attached to the upper and lower turrets of the same MK become ready to be linked with the rotary drive device, allowing the punching process to start quickly. It is an object of the present invention to provide a turret haunch press that can perform the following operations.

In order to achieve the above-mentioned object, in this invention, upper and lower metal 1!
The interlocking members are interlocked and connected to each other, and the ends of the upper and lower transmission wheels that are interlocked and connected to the one-rotation drive device are provided so as to face the upper and lower turrets, respectively, so that the upper and lower turrets are in a predetermined position. When indexed, the first engaging part formed at the end of the interlocking member and the second engaging part formed at the end of the transmission shaft naturally engage, and the upper and lower arrowlets are engaged. The upper and lower molds are configured to be rotated by a rotary drive device simultaneously with indexing and positioning to a predetermined position.

Embodiments of the present invention will be described in detail below with reference to the drawings.

As shown in FIG. 1, the turret punch press l consists of a portal frame in which an upper frame i is supported by side frames 5.7 erected on both sides of a base 3. However, the structure of the frame is not limited to the C-shaped frame, and may be a general C-shaped frame. On the lower surface of the upper frame 9, a disc-shaped upper turret 13, on which a number of upper molds 11 are mounted, is rotatably mounted by an upper rotation shaft 15. Further, on the upper surface of the base 3, a lower turret 19 is provided with a plurality of lower turrets 117 facing each stopper die 1 and is rotatably driven by a lower rotating shaft 21.

Since the upper turret 13 and the lower turret 19 are synchronously rotated in the same direction by a servo motor (not shown) installed in the frame, the upper and lower molds 11
, 17 are indexing and positioning rods 19 directly below the ram 23 which is mounted on the lower surface of the upper frame 9 so as to be vertically movable.

Guide rails 25 extending in the left-right direction as shown in FIG. Each movable table 27 is located on both front and rear sides of a fixed table 29 fixed on the base 3, and each movable table 27 is supported by a ts1 carriage 31 extending in the front and rear direction so as to straddle the fixed table 29. The movable table 27 is integrally connected. - A second carriage 33 is mounted on the fs1 carriage 31 and is movable on the movable tape in the front-back direction perpendicular to the moving direction of the 2B. - Multiple clamps that can grip the edge of a! I3
5 is attached so that the position can be freely adjusted in the direction of the front ridge.

Since the turret punch press 1 having the above-mentioned structure is generally well known, detailed explanations of other structures and operations will be omitted.

As shown in FIGS. 2 and 313, upper rotary mold holders that are rotatable with respect to the upper turret 13 are installed at appropriate locations (symmetrical positions in this embodiment) on the upper surface of the upper turret 13. 37a and 37b are rotatably mounted, and these upper rotary mold holders 31 and 37b are attached to the upper turret) 1
4. The 4th. It is interlocked and connected so that it rotates in conjunction with the movement member 39.

In addition, the lower tower (19) is the upper rotary mold holder 37.
At the positions corresponding to a and 37b, there is a lower rotary mold holder 4.
1a and 41b are rotatably attached to the lower turret 19, and these lower rotary mold holders 418 and 41b
K rotates in conjunction with a second interlocking member 43 that extends and is rotatably attached to the lower turret 19 in the radial direction.
iI dynamic connection.

The first interlocking member 39 and the second i! The structure with the # member 43 is almost the same, and both ends of each are connected to the upper turret 13. It slightly protrudes from the outer peripheral edge of the lower turret 19 in the radial direction. The end of the first interlocking member 39 is engageable with the end of the first transmission shaft 47 (see FIG. 4) in the upper transmission device 45 mounted on the upper frame 9, and the end of the second interlocking member 43 can freely engage with the end of the second power transmission shaft 51 in the lower power transmission wJ device 49 attached to the pacer 3. The upper and lower transmission devices 45, 49 have a similar construction, and each of them is operatively connected to a rotary drive device 53, such as a servo motor, which is appropriately mounted on the T-frame.

Therefore, the end of the first interlocking member 39 is connected to the first transmission shaft 47.
By rotating the % rotation drive device 53 when the end of the second interlocking member 43 is engaged with the end of the second transmission shaft 51, the upper rotary mold is rotated. Holder 3
78.37b and lower rotating mold holder 41m, 41b
are simultaneously rotated in the same direction. Therefore, the upper and lower metal parts supported by the upper and lower rotary mold holders 37a, 37b; 41a, 41b are rotated with respect to the upper and lower turrets (13.19); This allows you to position the mold in any direction.

Next, details of each component will be explained.

The rotary drive device [53 is mounted on a gearbox 55 suitably mounted on a 7-frame frame, and the drive shaft 57IC protruding into the gearbox 55 has a drive gear 59 integrally attached thereto. The gear box 55 has a first shaft 61. The second shaft 63 is rotatably supported,
Driven gears 65 and 67 having the same diameter and meshing with the drive gear 59 are integrally attached to one end of the first shaft 61 and the second shaft 63, respectively. Therefore, the upper and lower 1st and 2nd
The shafts 61 and 63 are simultaneously rotated in the same direction by the rotary drive device ff153.

The l/1ll shaft 61 is the upper transmission device 145
To! input shaft 69 and one-way universal joint)
It is connected via 71. The pulley 73 provided on the input shaft 69 and the intermediate shaft 75 (
A timing belt 79 is wound around a pulley 77 which is integrally attached to a belt (see FIG. 4). The intermediate shaft 75 is
It is rotatably supported by a frame 81 of the upper transmission device 45, and an intermediate gear 83 is integrally formed at one end of the intermediate shaft 75. In addition, the intermediate shaft 75
A fixing and holding device 85 is attached to the other end of the intermediate shaft 75, which prevents rotation of the intermediate shaft 75 and holds it in a fixed state. This fixed holding device [85 is composed of, for example, an electromagnetic or mechanical brake device, and its details will be omitted. −
The intermediate gear 83 of the second intermediate shaft 75 meshes with a transmission gear 87 that is integrally attached to one end of the first transmission shaft 47, which is horizontally and rotatably supported on the frame body 81.

Therefore, the first transmission shaft 47 can be rotated by the rotational drive device [53].

The other end of the first transmission shaft 47 protrudes toward the upper turret 13, and the other end has a first engaging portion 89 formed at the end of the first interlocking member 39, which can freely engage. 2 concatenation 1691 is formed. That is, at the end of the first interlocking member 39,
As is clear from FIG. 4 and FIG. 5, a first engaging base portion 89 having a rectangular cross-sectional shape is formed, and the other end Wi! of the first power transmission shaft 47 is formed. , is equipped with a plurality of cam 7 rollers 93 that can freely hold the #2 11i joint portion 89 from both sides. Therefore, the jlIl engaging portion 89 of the first interlocking member 39 and the first
When the second engaging portion 91 of the transmission shaft 47 is engaged, the rotation of the rotation drive device 153 is controlled by releasing the fixation of the intermediate shaft 75 by the fixing and holding device 85. First linked through! This can be communicated to @39.

By the way, since the first interlocking member 39 is attached to the upper turret 13, when the upper turret 13 rotates, it rotates integrally with the upper turret 13 around the upper rotation shaft 15. Therefore, the first interlocking member 39
The first engaging portion 81 and the first . When the upper turret 13 is rotated when the second retaining portion 91 of the transmission shaft 47 is in the horizontal state as shown in Fig. M5, the first engaging portion 89 is moved against the second engaging portion 91. They will naturally engage and disengage. Therefore, when the upper tower 13 is indexed and positioned at a predetermined position, the above-mentioned #! The first engaging portion 89 and the second engaging stand L'll naturally engage with each other.

The structure for transmitting rotation from the gearbox 55 to the second interlocking member 43 is the same as the structure for transmitting rotation from the gearbox 55 to the first interlocking member 39 as described above, so they have the same function. The same reference numerals will be given to the constituent members that play, and the details will be omitted.

Specifically, as shown in FIG. 2, the first interlocking member 39 includes a worm shaft 9 rotatably supported by bearing blocks 95a and 95bK at symmetrical positions li on the upper turret 13.
7! 1, 97b, and a connecting shaft 99 through which the upper rotating shaft 15 passes through the water rod 97b, and both worm shafts 97a,
97b and both ends of the connecting shaft 99 are connected via a general universal joint 101. The first retaining portions 89 are formed at the ends of both worm shafts 97a and 97b. Both ohmic shafts 9
Worm 9τ formed into 7 g, 97 bK single weight
a and 9τb mesh with worm gears formed in the upper rotary mold holders 37a and 37bK. In addition,
The upper rotary mold holders 37a, 37b are configured as shown in Figure JI6, for example.

That is, the mold holder hole 1 bored in the upper turret 13
A cylindrical bushing member 105 is fitted and fixed inside the bushing member 103, and a plurality of bearings 107 are installed inside this bushing member 105.
A cylindrical rotary holder 109 is rotatably supported 4 through the holder. A worm gear 111 that meshes with the front e-worms 91a and 97'b is integrally fixed to the upper part of the rotary holder 109 with bolts or the like, and an upper mold cellar that can be freely attached to and detached from the rotary holder 109. ) 113 is integrally attached. Therefore, when the worm shafts 97a, 97b are rotated in an appropriate direction, the rotating holder 109 is rotated with respect to the upper turret 13, and the upper mold cera) 113 attached to this rotating holder 109 is rotated. be. In addition, stopper mold set 1
Reference numeral 13 is a general mold turret R117 mounted on the upper turret 13, which is always urged upward by the action of a lifter spring l19.

Appropriate position FI of the connecting shaft 99 in the first interlocking member 39
tK, as shown in FIG.
A fixing and holding device 1123 that can freely clamp and fix 1 is attached. This fixed holding device 123 is attached to the play killing ring 121.
By clamping and fixing K, the first interlocking member 39 and the upper rotary mold holders 37a, 37b are prevented from rotating due to equal pressure vibrations. Note that the fixing and holding device 123 is, for example, as shown in FIGS.
This is a unique feature of sea urchins.

That is, clamp shoes 129a, 129 are installed at the tip in a recess 127 in a clamp base 125 having a U-shaped cross section and fixed onto the upper turret 13 with bolts or the like.
two clamp jaw members 131a, 131 with b
b is horizontally rotatably mounted via a pivot 133, and a suitable elastic device 135 such as urethane rubber is loaded near the other end of the clamp jaw members 131a, 131b. Therefore, the clamp jaw member 131a,
131b is always biased 4 so as to clamp the play killing ring 121.

Further, the vertical wall portions 137a, 1 of the clamp base 125
37bK is a pressing portion 139a, 1 that presses the clamp jaw member 13151.131b against the bullet 135.
Link 141. with 39b. a and 141b are pivotally connected via horizontal pivots 143a and 143b, and link 1
The ends of 41a and 141b are pivotally connected via a ζ-fujibin 145. The other end of one link 141b is a large protrusion laterally. Therefore, by pressing down the other end of the link 141b, the clamp jaw member 131
a, 13 l b is suppressed against the ammunition 135 i
, the clamping of the brake ring 121 is released.

One link 1 in the fixed holding device 1i123/k
The upper frame 9 serves as a device for pressing down the other end of 41b.
Pressing cylinders 1478 and 147b are mounted at symmetrical positions. Suppression cylinder 147a, l47b
A bushing rod 149 that presses the other end of one link 141b is screwed and fixed to the lower end of a bistone rod (not shown) that is movable up and down. A dog 155 is attached which operates a proximity switch 153 attached to the upper frame 9iC through the upper frame 9iC. The proximity switch 153 is
Detecting the vertical movement of the dog 155, the suppression cylinder 147a
, 147bK to detect fixing and release of the fixing and holding device 123. With the above configuration, the suppression cylinder 14
7a and 147b and the bushing rod 149 presses the other end of the link 141b, thereby releasing the clamping of the brake ring 121 by the clamp jaw members 131a and 131b4C.

The configuration of the lower rotary mold holders 41a and 41b attached to the lower tower 19 is almost the same as the configuration of the upper rotary mold holders 37a and 37b described above, and
The second interlocking member 43 has substantially the same configuration as the first interlocking member 39, and the configuration of the fixing and holding device that can fix the second interlocking member 43 is also the same as the above-mentioned fixing and holding device 123. Components that perform the same functions are designated by the same reference numerals, and detailed explanations thereof will be omitted. The fixed holding device R123 attached to the lower tower 19 is attached to the suppression cylinders 147a, 147 attached to the base 3 via an intermediate rod 157 (see Fig. 3) attached to the lower tower 19 so as to be vertically movable.
It is operated from below by bK.

In the above configuration, the workpiece W is gripped by the clamping device [35 and the workpiece W is moved back and forth and left and right for positioning while normal punching is performed, and the punching is performed using a rotary die. First, the upper and lower towers 13 and 19 are appropriately rotated to appropriately index and position one of the upper rotary mold holder 37a and the lower rotary mold holder 41a at a position below the ram 23. In this way, the upper and lower rotating mold holders 37ae4
When the index positioning of 1a is performed, the first interlocking member 39,
The first retaining portion 89 formed at the end of the second interlocking member 43 is
As described above, the first transmission shaft 47° naturally engages with the second engagement portion 91 formed by the end gK of the second transmission shaft 51. Therefore, appropriate upper and lower pressing cylinders 147a,
147b to release the fixation of the first interlocking member 39 and the second interlocking member 43 by the fixed holding device 123.
After releasing the fixation of the intermediate shaft 75 by 5, the rotational drive device 53 is rotationally driven to rotate the upper and lower rotary mold holders 37a, 37b; 41m, 41b as appropriate.

As can be understood from the above description of the embodiments, the present invention basically revolves around an upper turret equipped with a plurality of upper dies and a lower turret equipped with a lower dies facing each stopper dies. In a freely movable turret punch press, an appropriate number of upper molds equipped with an upper turret (K) are rotatably provided with respect to the upper turret, and a lower mold is opposite to this rotatable upper mold. an end of a first interlocking member which is rotatably provided with respect to the lower turret) K and is interlockingly connected to the rotatable upper mold; and a first interlocking member which is interlockingly connected to the rotatable lower mold. 2
A first engaging portion is formed and provided at the end of the interlocking member,
The rotational drive device K mounted on the frame of the turret pan-de press is provided with the end of the first transmission shaft connected to the upper turret facing toward the upper turret. A lower part of the end of the second transmission shaft interlockingly connected to the rotational drive device, wherein a second engagement part that can be naturally engaged with the first engagement part of the interlocking member is formed at the end of the first transmission shaft. The second interlocking member is provided so as to face the turret side, and when the lower turret is rotated to a predetermined position, the force of the second interlocking member is such that the second engaging portion can be freely engaged with the first engaging portion at the end of the second power transmission shaft. Since the rotary mold holder mounted on the upper and lower turrets can be rotated with an extremely simple configuration without using any special or complicated latching device. It is. In addition, at the same time as the upper and lower turrets are indexed for use with the mold attached to the rotary mold holder, the rotary mold holder becomes ready for interlocking with the rotation drive device, so the rotation of the rotary mold holder is controlled. It can be started quickly.

It should be noted that the present invention is not limited to the above-described embodiments, and can be implemented in various embodiments by making various design changes. For example, the configurations of the first engaging part on the interlocking member and the second engaging part on the transmission shaft may be reversed, or a guiding slope may be formed on the first engaging part etc. to facilitate engagement. It is also possible to form the second retaining portion into a simple groove shape. Furthermore, each interlocking member is not provided horizontally (it is provided perpendicularly to the upper and lower turrets by using a bevel gear, etc.), and a second engaging stand portion that can freely engage with the first engaging portion formed in the interlocking member is provided. It is also possible to provide a configuration in which each of the transmission shafts provided is provided perpendicularly to the upper frame and the base, and the first and second engaging portions engage when the upper and lower turrets are indexed and positioned at a predetermined position. It is also possible to provide two rotary drive devices so that the upper and lower rotary mold holders can be rotated separately.

[Brief explanation of the drawings] Figure 81 is a front view of a typical turret punch press.
Figure w42 is a schematic plan explanatory view as viewed from the G' line in Figure 1, Figure 3 is a schematic explanatory view of Figure 2 viewed from below, and Figure 4 is a schematic illustration of Figure 2. 5 is an enlarged sectional view taken along the line ff-IV in FIG. 4, FIG. 6 is an enlarged sectional view taken along the line Vl-Vl in FIG. Figure 7 is an enlarged view from the ■-■ line in Figure 3, Figure 8 is a view from the ■-■ line in Figure 7, and Figure 9 is an enlarged view from the ■-■ line in Figure 8. (Explanation of symbols representing main parts of the drawings) 13 Upper turret 19 Lower turret 37a, 37b Upper rotating mold holder 41a, 41b Lower rotating mold holder 39 First interlocking member 43 Second interlocking member 47 First transmission shaft 51 Second transmission shaft 89 First ship section 91 Second engaging section 53 Rotary drive device patent applicant AMADA CO., LTD.

Claims (1)

[Claims] The turret punch press is made up of a rotatable upper turret with a plurality of upper dies and a lower turret with a lower die facing each of the upper dies. A number of upper molds are provided rotatably relative to the upper turret, and a lower mold opposite to the rotatable upper mold is rotatably provided relative to the lower turret, and the rotatable upper mold A first engaging portion is formed and provided at an end of a first interlocking member provided in interlocking connection with the first interlocking member and an end of a second interlocking member interlockingly provided with the rotatable lower mold, respectively; In a turret punch press, the end of the FAL transmission shaft, which is interlocked and connected to the rotary drive device attached to the frame, is provided facing toward the upper turret, and when the upper turret is rotated to a predetermined position, the first interlocking member A second engaging part that can be naturally engaged with the first engaging part is formed at the end of the first transmission shaft, and the second engaging part is provided at the end of the first transmission shaft, and is connected to the second transmission shaft that is interlocked with the rotational drive device, and the second engaging part that faces the lower turret at the end. A second engaging portion is provided at the end of the second transmission shaft and is provided at the same time as the lower turret is moved to a predetermined position K111. A turret punch press featuring the following features: