JPH0366425A - Index device for die of turret punch press - Google Patents

Abstract

PURPOSE:To highly keep working accuracy by providing main gears which are transferred and revolved about the axes of turret, a die gear which receives each die and which is revolved, an intermadiate gear with which revolution is transferred from the main gears to each die gear and a switching clutch for turret with which transferred revolution is inputed. CONSTITUTION:The main gears 49, 51 are transferred and revolved about the axes 29, 33 of turret by driving a motor. When the turret is made to revolve, the turret is revolved by turning switching clutches 85, 87 for turret to 'on' and an objective die is selectively positioned in the punch center P. And, when the direction or angle, etc. of die is made to index, the turret isn't revolved by turning those switching clutches 85, 87 for turret to 'off'. The posture of the punch press on the punch center is indexed by transferring and revolving the die gear 73 through the main gear 51 and the intermediate gear 61 and revolving dies which are received with that die gear 73 in the objective direction. By this way, the transmission process for driving power is simplified and high working accuracy can be kept.

Description

DETAILED DESCRIPTION OF THE INVENTION [Objective of the Invention (Field of Industrial Application)] The present invention relates to a mold indexing device for a turret punch press.

<Prior art> A mold indexing device is a turret punch press in which a punch and a die are rotatably mounted on the upper and lower turrets, and the rotatable punch and die are rotated and indexed appropriately to perform punching processing. A pair of punch and die punches the same workpiece in different directions.

As shown in Utility Model Application Publication No. 59-44623, a worm gear is provided on the outer periphery of the mold, and a transmission shaft is passed through the turret axis to a pair of symmetrically positioned transmission systems for the mold rotation of such a mold indexing device. The molds are interlocked, and the molds are driven by a servo motor, which is a drive source separate from the turret 1-.

(Problem to be Solved by the Invention) In such a transmission configuration, a pair of molds are interlocked by a transmission shaft directed to a symmetrical position on the turret axis, so when used in an index form of three or more molds. In this case, the transmission shafts intersect at different positions on the turret axis, which makes the transmission structure complicated.

An object of the present invention is to provide a mold indexing device for an L/foot punch press that eliminates such defects, simplifies the transmission structure, maintains high precision machining, and provides a mold indexing device for an L/foot punch press.

[Structure of the Invention (Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention arranges a plurality of molds around a turret axis and rotates each mold to a punch center. In a turret punch press that punches while selecting, there is a main gear that is transmitted and rotated around the turret axis by a motor, a mold gear that rotates to receive each mold, and a main gear that performs indexing of each mold. a turret comprising: an intermediate gear for transmitting rotation from the main gear to each mold gear; and a turret switching clutch provided on the turret to perform indexing of each mold and input transmission rotation between the main gear and the turret. A mold indexing device for a punch press was constructed.

(Operation) The main gear is transmitted and rotated around the turret shaft by the drive of the motor.When rotating the turret around the turret shaft, by turning on the turret switching clutch, the rotation of the main gear is changed from the rotation of the main gear to this turret. The turret is transmitted and rotated via the switching clutch, and the target mold is selectively positioned and indexed to the punch center.

Also, when indexing the direction or angle of the mold,
By disengaging this turret switching clutch, the turret is not rotated, but the mold gear meshed with the main gear and intermediate gear is rotated by transmission, and the mold received by this mold gear is targeted. The position of the punch press on the punch center is indexed.

Press processing is performed on the workpiece using the die of the turret punch press indexed in this manner.

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

3 and 4, the turret punch press forms a machining gap 5 between a lower machine body 1 and an upper machine body 3, and the lower machine body 1 at the bottom of this machining gap 5 has an object to be machined. A work table 7 on which a work W is movably placed is supported by an object, and a lower turret 9 is rotatably supported on the upper surface of the work W that is supported by the work table 7 and punched. ing. Further, the upper fuselage 3 is provided with a striker 15 for pressing a punch 13, which is a mold for the upper turret 11, as well as an upper turret 11 rotatably supported at a position facing the lower turret 1. ing.

Further, on one side of the machining gap 5, this work table 7 is provided.
a carriage 19 on which a plurality of clamps 17 are arranged to clamp one side of the workpiece W to be transferred and supplied from the upper and lower surfaces;
A kick ridge base 21 and the like that support the carriage 19 are provided.

Further, the carriage base 21 is supported so as to be movable in the Y-axis direction along a rail 23 provided in the Y-axis direction with respect to the lower body 1. The carriage 19 is movable relative to the carriage base 21 in the X-axis direction. By each power drive of each of the carriage bases 21 and the carriage 19, the lower turret on the punching center P is moved while controlling the movement of the workpiece W held by the clamp 17 in the Y-axis direction and the X@ direction along the worktable 7. The punching process is performed between the upper turret 11 and the upper turret 11.

In FIGS. 1 and 2, a servo motor M is installed on one side of the fuselage, and the transmission shaft is interlocked with the servo motor M through upper and lower sprockets 25, a pair of upper and lower chevrons, etc. , a sprocket cylinder 31 rotatably provided around the upper turret shaft 29, and a sprocket f! rotatably provided around the lower turret shaft 33. 1135 are configured to rotate in synchronous transmission. This sprocket tube 3
1.35 is a bearing 41.43 on the outer periphery of a shaft cylinder 37.39 that is fitted to rotate integrally with the upper turret 11 and the lower turret around the turret shaft 29.33.
It is rotatably provided by.

Further, a sprocket 45.47 is provided at one upper and lower end of this sprocket cylinder 31.35, and a main gear 49.51 is provided at the other end.

A large number of punches 13 are arranged in the upper turret 11 at constant rotational positions on a radius around the axis of the upper turret shaft 29. Punch holes 53 provided in the upper turret 11
A punch receiver 57 is rotatably mounted on a bearing 55.
is provided, and the bunch 13 is fitted into and supported by the punch receiver 57 from above. Further, a mold gear 59 is integrally provided at the upper end of the punch receiver 57, and is configured to mesh and interlock with the main gear 49 through an intermediate gear 61. 63 is a stripping spring of the bunch 13.

Further, a die 65 is arranged on the lower turret 9 so as to face each bunch 13 of the upper turret 11 in the same phase position. The supporting structure of this die 65 is almost the same as that of the bunch 13, and a die receiver 71 is provided in each die hole 67 so as to be rotatable by a bearing 69, and the die 65 is inserted from above the die receiver 71. Fit and support.

Further, a mold gear 73 is integrally provided at the upper end of the die receiving cylinder 71, and is configured to be interlocked with the gear 51 through an intermediate gear 75. This intermediate gear 75 is
It is located on both the upper and lower sides of the lower turret 9 and rotates integrally with it, and meshes with the main gear 51 on the lower side of the lower turret 9 and meshes with the mold gear 73 on the upper side.

In the upper and lower turrets 11.9, clutch pins 77.79 are configured to electromagnetically appear and retract toward the main gear 49.51 side at the same rotational phase position.
Insert the clutch pin 77.7 into the pin hole 81.83 formed in 1.
Turret switching clutch 85.8 by fitting 9
The configuration is such that 7 is the entry point. Also, each turret 11.
Stopper holes 89.91 are provided at constant phase positions on the outer peripheral surface of the upper fuselage 9, and the stopper bins 93.95 which are electromagnetically protruded and retracted from the upper fuselage 3 and the lower fuselage 1 are protruded and secured to the upper turret 11. , the lower turret 9 is configured to select a fixed position and stop rotating.

In FIG. 3, the drive control of the servo motor M, the operation control of the turret switching clutch 85, 87, the stopper bin 93, 95, etc. are controlled and interlocked by a numerical control OvR device C. 97 is a signal line for the servo motor M, and 99 is a power line. The punch press consists of a bunch 13 of an upper turret 11 and a lower turret 9.
The work W supplied between the bunch 13 and the die 65 is punched by the striking force of the striker 15 with the die 65 aligned with the position of the punching center P below the striker 15. The rotational transmission of the upper turret 11 and lower turret 9 for punching is performed by engaging the turret switching clutches 85 and 87 under the drive of the servo motor 25 (see FIG. 2), that is, By driving the servo motor 25, the upper and lower chennafs, the sprockets 45 and 4, the sprocket cylinder 31.35, the main gear 49.51, and the clutch pin 7
7.79, the upper turret 11 and the lower turret 9 are synchronously rotated around the turret axis 29.33. As a result, the target punch 13ε is brought into alignment with the die 65 on the punching center P and stopped.

Also, when determining the direction of the bunch 13 and the die 65 located at the punching center P, the stopper bin 93 is used.
．． 95 into the stopper holes 89 and 91 of the upper and lower turrets 11 and 9, respectively.
1.9 is fixed in place, and the turret switching clutch 85
．． Cut 87. A sub-oquet that is driven and rotated by a servo motor 25 via a chain valve, etc.! 1131.
39 is the turret shaft 29°3 integrated with the main gear 49.51
3 rotations, and from this main gear 49.51 to intermediate gear 6
1.75, the mold gear 59°73 is rotated, and the bunch 13 integrated with the punch receiver n59 and the die 65 integrated with the die receiver sleeve 71 are identified and rotated. In this way, by rotating the upper and lower punches 18 and the die 65, the directionality of the mold is selected, and the indexing of the workpiece W in the form of a bunch press is controlled.

In addition, such a main gear 49.5L intermediate gear 49.75
, and a gear transmission mechanism that meshes and interlocks the mold gears 59, 73, etc., is connected to the upper and lower turrets 11 with respect to each bunch 13 and die 65 arranged around the turret wheels 29, 33.
．． In order to mesh and transmit the gears separately at close positions along the 9th axis, the direction can be freely set by setting the gear diameter for each bunch 13 of the mold gear 59, 73 and for each die 65. I can do it. Also, intermediate gear 49°75
By adjusting the meshing position independently, each bunch 13 and die 6
The origin position of 5 can be adjusted freely.

Note that this invention is not limited to the embodiments described above, and can be implemented in other forms by making appropriate changes.

[Effects of the Invention] Since the present invention has the above-mentioned configuration,
It has the following technical effects. That is, the rotation of the turret and the directional rotation of the plurality of molds placed on the turret are switched by turning on and off a turret switching clutch between the turret and a main gear that is transmitted and rotated around the turret axis. Therefore, a single motor for transmitting and rotating this main gear can selectively rotate one knot and rotate the molds, even if there are many molds placed on the turret. , it is only necessary to interlock the main gear and each mold gear with an intermediate gear, and the planar gear engagement simplifies the power transmission path and maintains high machining accuracy. By independently adjusting the meshing position of the molds, it is easy to arbitrarily adjust the origin position of each mold.

[Brief explanation of drawings]

The figure shows one embodiment of this invention, and FIG. 1 is a view of the construction shown in FIG. Part of the plan view, Figure 2 is from Figure 1 -
(2) A line sectional view, FIG. 3 is a front view of the entire turret bunch press, and FIG. 4 is a plan view of FIG. 3. 9...Lower turret 11...Upper turret 13
... Bunch 27 ... Cheno 29 ... Upper turret shaft 45 ... Sprocket 49 ... Main gear 59 ... Mold gear 65 ... Die 75 ... Intermediate gear 85 ... Turret Switching clutch 87...Turret switching clutch M...Servo motor P...Punching center W...Work 33...Lower turret shaft 47...Sprocket 51...Main gear 61...Intermediate gear 73...Mold gear

Claims (1)

[Claims] In a turret punch press, a plurality of molds are arranged around the turret shaft and each mold is selected as a punch center while rotating and punch-pressed. A mold gear that rotates while receiving the mold, and an intermediate gear that transmits rotation from the main gear to each mold gear for indexing each mold.
A mold indexing device for a turret punch press, comprising: a turret switching clutch provided on the turret for indexing each mold and inputting transmission rotation between the main gear and the turret.