JPS5840245A - Index device capable of direct-acting drive and rotation - Google Patents

Abstract

PURPOSE:To aim at miniaturizing a device in size and reducing manufacturing costs, by making its functions such as direct-acting drive, rotation, indexing, etc., operatable only switching fluid passage with a suchlike device shaped something like a bar as a whole. CONSTITUTION:When the amount of projection from a turn table 49, or rather a work holder, is increased, fluid is fed to a port e. This fluid flows into a chamber 7 and forcibly presses a direct-acting piston 46 to the right in illustration while the piston 46 travels on a serration shaft 23 inside a cylinder 44 in the projecting direction of the table 49. On the other hand, when the table 49 is rotated by a certain angle, fluid is fed to a port d. In this case, fluid flows into chambers 42 and 43 and moves a hydraulic clutch 31 to the right in illustration whereby engagement between an index pin 37 and a notch 38 is released. Next, fluid is fed to a port a of an oscillating rotary actuator 21, and a rotor 26 is turned round counterclockwise. With this, a power shaft 28 is as well rotated and thereby the table 49 gets rotated via the clutch 31, an intermediate shaft 32 and the serration shaft 23 in addition.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention seeks to improve translational and rotational and indexing devices.

As a conventional device for this ear, for example, II! / There is something shown in the figure.

This device is for the lower piston rod of the direct-acting cylinder I/
Connect the lifting shaft to a, and attach the upper end of this lifting shaft to the mounting frame J.
While supporting the shaft, guide the shaft with guides and guides,
Also, a direct-acting cylinder for rotation! horizontal piston red jl
A rack t is connected to the tip of L, and the middle part of the lifting shaft is connected to the center of the binion 7 that meshes with this rack 6, and the lifting shaft is movable in the axial direction of the binion 7, and the A one-way clutch l is interposed between the lifting shaft and the mounting frame 3.
is installed.

In the figure, // indicates a guide that guides the movement of the rack, and 12 indicates a stopper that limits the forward movement of the rack.◎ The rotational movement of the turntable 9 in this device controls the forward and backward movement of the rack t. 7 into a rotational motion, and this rotational force is transferred to the mounting frame J via the one-way clutch I.
It is brought about by communicating to. Here, the one-way clutch l functions to transmit rotational force in only one direction to the mounting frame J, and according to the one-way clutch l in the illustrated example,
The turntable 9 rotates only in the direction of the arrow A shown in the figure when the rack 4 is moved over the bale.

Further, the indexing is performed based on the rotation of the pinion 7 at a predetermined angle and the effective stroke of the rotational linear cylinder j.

Roughly speaking, the vertical positions of the turntable 9 and the workpiece 10 are determined by moving the elevating axis λ in the axial direction of the pinion 7 using the vertical translation cylinder l.

However, in such conventional technology, linear motion,
Since the rotation and indexing functions are provided by separate mechanisms that are independent of each other, a large number of conventional parts are required, such as the lifting shaft λ, rack t and pinion 7, one-way clutch 11 stopper 12, and guide parts. At the same time, there were problems in that the equipment became complicated and large, and the price also increased.

The present invention advantageously solves these problems of the prior art and provides a compact and inexpensive linear motion, rotation, and index device.

The configuration of this invention will be explained in detail below based on Figure @J koji.

FIG. 2 is a partial sectional view showing an embodiment of the invention.

The device according to the present invention, which is rod-shaped as a whole, includes an oscillating actuator located at the left end in the figure, an indexing cylinder with a clutch placed adjacent to the oscillating actuator, and an index cylinder with a clutch located adjacent to the oscillating actuator. The clutch includes a serration shaft B provided on the driven side of the clutch, and a linear actuator 2da disposed in engagement with the serration shaft B.

The oscillating actuator 1, which can be vane-shaped or piston-shaped, has, for example, two boats a and b communicating with the inside of a cylinder B, as shown in the cross-sectional view in FIG. In this cylinder, a rotor shaft having two vanes is arranged, and two stoppers xa and zzb are provided protrudingly, and the rotor is roughly connected to the output shaft 1.
It is constructed by fixing it with a key or other means.

According to this swing type actuator l, for example, an i-room s surrounded by a vane and a stopper la from a boat a.
Due to the pressure of the fluid that directly flowed into the rotor n and the fluid that flowed into the chamber xb surrounded by the vane and the stopper 27b through the through holes provided in the rotor n and the output shaft, the vane and the output shaft Rotate counterclockwise at the position shown until it comes into contact with ya and xb. Incidentally, upon this rotation, the fluid in the compartment 30& communicating with the boat b and the compartment Mb diametrically opposed to the compartment 30eL flows out of the boat b.

Conversely, when fluid flows in from boat b, the rotor valve rotates clockwise, and the tIF and bodies in chambers xa and xb flow out from boat a.

An indexing cylinder with a clutch installed adjacent to the swing type actuator I is located at the chamfered end portion ha7 of the output shaft 1.
A hydraulically actuated clutch 3/rt is fitted to be slidable in the axial direction, and this clutch 3/ is connected to an intermediate shaft J2 disposed coaxially with the output shaft 1 at the end remote from the oscillating actuator J. The indexing cylinder with a clutch, which has a pawl 31 that can be engaged with the pawl 33, also has knee cylinders J5 and 74, which are arranged sequentially from cylinder Jj@, and which are arranged parallel to the output shaft 1 and the intermediate shaft 32 in the cylinder mountain. The indexing bin n can slide in the axial direction within the hole R provided in the cylinder 36, and the swinging of the indexing bin I The end on the side away from the actuator can be hooked into and removed from the notch 31 provided in the 7th rung part of the intermediate shaft 32.Then, the hydraulically actuated clutch 31 and the index bin are located.
In this example, in order to bring about the operation of 2
Two boats o and d are provided. As is clear from the drawing, these boats o and d are interlayered in the circumferential direction of the cylinder 3S, and one boat 0 is connected to the end surface of the swing type actuator of the index bin I and the cylinder 36. A chamber formed between the clutch 31 and the intermediate shaft 32 via a chamber Q separated by the provided index pin sliding hole 1 and through holes n&, nb provided in the index pin n. :i! ! Pass. Po again)
d is a chamber on the oscillating actuator side of the clutch J/ and a chamber remote from the oscillating actuator I of the index bin sliding hole I, that is, a chamber R opposing the index bin nrt@te chamber. It will be communicated to. In the figure, l-td and chamber 4
The through hole with 1J was omitted.

Further, as described above, the intermediate shaft 32 has a pawl 33 that is located at the end on the swing type actuator side and can be engaged with the pawl 3# of the clutch 3/3, and is provided on the periphery of the 7 flange portion of the intermediate portion. It has a plurality of notches f531. A serration shaft n is coaxially fixed to the end of the intermediate shaft 32 remote from the swing type actuator.

The linear actuator 3, which is disposed in an engaging relationship with the serration shaft n, is capable of advancing and retracting in the axial direction of the serration shaft n within the cylinders and the nails that are successively separated from the cylinder 36, and The inner surface has a directly mounted piston that engages the serrations. Here, the t-knee provided on the cylinder is a chamber 4 divided by the intermediate shaft 32, the serration shaft n, and the direct-acting piston.
The cylinder S&: provided &-)f is a chamber a divided by the cylinder S and the 1m piston.
communicate with.

The middle part of the figure shows a turntable which is fixed to the protruding end portion of the direct-acting piston from the cylinder 5 and allows workpieces to be attached thereto.

The operation of the device configured in this way will be explained below.

In order to increase the amount of protrusion of the turntable culm and thus the workpiece from the apparatus, fluid is supplied to the boat θ. This fluid flows into the chamber and presses the direct-acting piston to the right in the figure, thereby causing the direct-acting piston to move within the cylinder housing and on the serration axis in the direction of protrusion of the turntable.

Note that during this movement, the fluid in the chamber q flows out from the boat f.

Conversely, when reducing the amount of protrusion of the turntable culm, fluid is supplied from the boat f to the chamber q, and the fluid in the chamber is
-) By causing the flow to flow from el, the direct-acting pistons are moved in the direction of the intermediate axis.

Here, the amount of protrusion of the turntable from the device is 8. Of course, it can be adjusted as appropriate depending on the amount of fluid supplied to f.

Also, turn the turntable cape in a certain direction by a certain angle @
In this case, fluid is first supplied to boat d at the required protrusion position of the turntable culm from the device. This causes the fluid to flow into the depths Q and Q, causing the hydraulically operated clutch 3/ to move to the right in the figure and its pawl 3/ to the intermediate shaft 3/.
At the same time, move the index pin I to the left in the figure to disengage the bin I and the notch 31.

Next, fluid is supplied to the boat a of the oscillating actuator 1, and the internal pressure of the compartments 29a and yb causes the rotor to rotate counterclockwise in Figure 3. As a result, the output shaft l also rotates in the same direction, and the clutch 3/, the intermediate wheel 32, and the serration shaft nrt''h also rotate the turntable culm in the same direction.This rotation of the turntable culm is due to the rotor. This continues until the vanes of 27a and 27a come into contact with the stoppers 27a and yb, and the turntable cape is indexed by this contact.

On the other hand, when the Lotus rotates like this, the room 30 &
The fluid in 30b flows out of boat b.

The turntable cape indexed in this way is fixed at that position by supplying fluid to boat 0. In other words, fluid flows from boat C into chamber V to the right of indexing bin J7rt. The intermediate shaft 32 and the turntable cape are locked in a predetermined position by sliding the turntable head towards the end and fitting the tip into the notch 31 of the intermediate shaft 32. Incidentally, upon this locking, the fluid in the chamber Q flows out at a rate of dTr:m.

The fluid roughly supplied to the boat flows into the chamber #/ through the through holes J7a and J7b provided in the index pin n, and flows into the clutch 3
Move / to the left as shown. Therefore, the fluid in chamber Q will also flow out via boat d. In the illustrated example, in order to enable communication between the boat 0 and the chamber l even when the index pin 1 is in the engagement position with the notch 31 or in the disengaged position, the index pin 1 is provided with its axis. Two holes j7b spaced apart in the direction.

Although 77o is provided, it is also possible to use a combination of - holes and grooves, etc.

After the clutch 3 and the intermediate shaft 32 are disengaged, in order to wait for the next indexing of the turntable cape, fluid is supplied to the boat b of the oscillating actuator I to move the rotor so that its vane becomes the stopper. la.

Rotate it clockwise at the position shown in FIG. 3 until it comes into contact with 1b.

Due to this rotation, both the output shaft 2IIF3 and the clutch 31 rotate and return to their original positions;
The turntable does not rotate because it is in its engaged/disengaged position. Note that this rotation of the rotor causes the compartment chamber 29a,
Of course, this involves draining the fluid in sb from mate a. Lu: In this situation, can you pull the turntable bell? ! The subsequent indexing is performed in the same manner as described above.

As described above, according to the present invention, the oscillating actuator, the indexing cylinder with a clutch disposed adjacent to the oscillating actuator, the serration shaft provided on the clutch driven side of this cylinder, and the serration shaft. The device is equipped with a linear actuator arranged in an engaging relationship, and the device is rod-shaped as a whole and can perform the three functions of linear movement, rotation, and indexing, so the device itself is extremely simple and compact. This method brings about remarkable effects that could not be expected from the prior art, such as being more economical and easy to operate by simply switching the tIfJ structure.

[Brief explanation of the drawing]

@1 Figures (a) and (b) are a plan view and a front view of a conventional device, respectively, @- figure is a front view of an embodiment of the present invention taken in section along the V section, and #! Figure 3 is a cross-sectional view along the line-double line in Figure 2, and the reference figure is! ! It is a left side view of the λ diagram. 〃... Swinging actuator, 〃... Indexing cylinder with clutch, n... Serration shaft, 2f... Direct actuator, τri, ffl, 33, 74, 44
1, Fj...Cylinder, S...Rotor, J...
・Output shaft, 31... Hydraulic operated clutch, 3λ... Intermediate shaft, n... Index pin, 3g... Notch, ψ, 4
+/. N, Fj, F7, #... chamber, %... direct-acting piston, ke... turntable.

Claims (1)

[Claims] L An oscillating actuator, a hydraulically operated clutch that connects and disconnects the output shaft of this oscillating actuator and the serration shaft, and the serration shaft is restrained in a specific plane 1 in relation to the hydraulically operated clutch. Hydraulic operated index focus, I! 1r1e A linear motion, rotation, and indexing device that is rod-shaped as a whole and includes a piston that fits into a serration shaft and is driven forward and backward in the axial direction.