JP2543746Y2 - Work transfer device - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention relates to a work transfer device.
More specifically, the present invention relates to a work transfer device for moving a work in a horizontal direction for a short distance.

[0002]

2. Description of the Related Art For example, as shown in FIG. 11, in order to move a work in a horizontal direction by a short distance such as when a work sent by a conveyor such as a belt conveyor is fed into a processing machine. A work transfer device A is used. In this work transfer device A, a cylinder actuator C and a guide block D are fixedly mounted on a stationary device base B, and movably supported by the base B via a guide rod E inserted into the guide block D. The work moving member F is attached to the rod Cr of the cylinder actuator C. In the apparatus A, the work moving member F is engaged with a work (not shown), and the work moving member F is moved to the cylinder actuator C.
The workpiece is transferred in the horizontal direction by moving from the solid line position to the dashed line position or from the dashed line position to the solid line position based on the above operation.

[0003]

By the way, in the above-mentioned conventional work transfer device A, the cylinder actuator C has its operating axis extending in the horizontal direction so as to give the work moving member F an operation of pushing the work in the horizontal direction. It is installed on the device base B in an aspect. As a result, the size of the work transfer device A in the horizontal direction becomes large, and there is a disadvantage that a large space is required when installing the device. The present invention has been made in view of the above circumstances, and has as its object to provide a work transfer device capable of moving a work in a horizontal direction without increasing an installation space.

[0004]

Therefore, according to the present invention, a main support arm is swingably supported on a device base around a horizontal axis orthogonal to a workpiece transfer direction.
An elevating arm for swingably supporting a cylinder actuator having an operating axis extending in a vertical direction is vertically supported via a first parallel link arm and a second parallel link arm, and a cylinder actuator is provided at an end. An upper arm part which is pin-connected to the rod of the above, and a lower arm part which is twice as long as the main support arm and which has the free end of the main support arm pin-connected to the middle point and the work moving member is pin-connected to the end. The work arm provided is swingably supported on the elevating arm via a pin, and one end of a work parallel link arm parallel to the lower arm of the work arm is pin-connected to the work moving member, and the other end is connected to the work moving member. A pin is connected to the arm of the elevating arm that is parallel to the work moving member, and the work arm is rotated and driven based on the extension / retraction operation of the cylinder actuator to move the work. It has achieved the above object by constituting to move the timber in a horizontal direction.

[0005]

In the above construction, the working arm is driven by the cylinder actuator having the operating axis extending in the vertical direction, so that the horizontal dimension of the work transfer device is made as small as possible. Since the actuator is directly driven to rotate by the actuator, the work moving member is moved in a horizontal direction over a long distance by largely swinging the work arm.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described below in detail with reference to the drawings showing one embodiment. 1 to 9 show an example in which the work transfer device according to the present invention is applied to a device for pushing a work supplied by a work supply device into a rust prevention coating device.

As shown in FIGS. 1 and 2, the work transfer device 1 includes a column 2 as a device base that is vertically erected, on which a main support arm 10 is provided. Via a support shaft 11 extending on a horizontal axis orthogonal to the transfer direction (the left-right direction in FIG. 1), the support member is swingably supported in the left-right direction in FIG.

The first column 2 is provided with first parallel members.
The parallel link arm 20 and the second parallel link arm 30 are supported via support shafts 21 and 31, respectively, so as to be swingable in the vertical direction in FIG. A free end (right end in the figure) of each of the first parallel link arm 20 and the second parallel link arm 30 is pin-coupled to an elevating arm 40 via pins 22 and 32, respectively. The lifting arm 40
Moves up and down. The pins 22 and 32 move up and down along an axis extending upward through the support shaft 11 when the elevating arm 40 moves up and down.

A bracket 41 is fixedly mounted on the upper end of the elevating arm 40. A cylinder actuator 50 is attached to the bracket 41 via a support shaft 42 so that the operating axis extends in the vertical direction. Have been. The cylinder actuator 50 is supported by the lifting arm 40 so as to be swingable in the left-right direction in FIG. 1 via the support shaft 42, and the fork 51 attached to the tip of the rod 50a has a working arm 60 Are pin-connected.

The working arm 60 is swingably supported by the lifting arm 40 via a pin 32 together with the above-mentioned second parallel link arm 30. Upper arm 60a extended toward
The fork 51 is connected to the upper end of the work arm 60, that is, one end of the working arm 60 via the pin 61 as described above. The work arm 60 is provided with the pin 3 in FIG.
2 has a lower arm portion 60b extending from the lower left to the lower left portion. A block 71 is supported via a pin 62.
Further, at the midpoint of the lower arm portion 60b of the working arm 60, specifically, at an intermediate portion of a line connecting the pin 32 and the pin 62, the main support arm 1
The free end (upper end) of the pin 0 is pin-connected. Also,
The lower arm portion 60b of the work arm 60 has a length twice as long as that of the main support arm 10, and specifically, the distance between the pins 32 and 12 and the distance between the pins 12 and 62 on the work arm 60. Is set to be the same as the distance between the pins 11 and 12 in the main support arm 10.

On the other hand, an arm 40a extends rightward in FIG. 1 at the lower end of the elevating arm 40.
At the right end of the work parallel link arm 80 is supported via a pin 81, and at the lower end of the work parallel link arm 80, the transfer block 71 is supported via a pin 82. The pins 32 and 81 on the arm 40a of the lifting arm 40 and the pins 6 on the transfer block 71
2, 82 are located on a line parallel to each other,
An arm 40a of the lifting arm 40, a transfer block 71,
The work arm 60 and the work parallel link arm 80
Construct a parallel link.

An engaging claw 73 is supported by the transfer block 71 via a pin 72 extending perpendicular to the plane of FIG. As clearly shown in FIG. 4B, pins 74 and 75 are provided upright on the transfer block 71 and the engagement claws 73, respectively.
4 and 75, the upper part of the engaging claw 73 is moved by the urging force of the tension coil spring 76.
The engaging claw 73 in the normal state
As shown in FIG. 1, the leading end 73 a is occupied at a position protruding from the lower surface of the transfer block 71. The transfer block 71, the pins 72, the engagement claws 73, the coil springs 76, and the like constitute a work moving member 70. The work moving member 70 is moved by the movement of each arm described later in FIG. Move horizontally from the solid line position to the chain line position.

As shown in FIG. 1, below the moving area of the work moving member 70, a plurality of transport rollers 3a,
A transfer table 3 having 3a,... Is provided, and a proximity switch (not shown) for detecting that the main support arm 10 occupies the solid line position is provided on the column 2. A proximity switch 4 is provided for detecting that the main support arm 10 is occupied at the dashed line position.

The operation of the work transfer device 1 will be described below with reference to the conceptual diagrams shown in FIGS. 5 to 9 and FIG.

As shown in FIG. 10, an arm L swinging around a point o is provided with an arm M such that the intervals between the points o and p, the points p and q, and the points p and r are equal to each other. And the point q of the arm M is moved up and down on the line x passing through the point o, the point r of the arm M becomes the point o
And on a line y extending perpendicular to the line x. The work transfer device 1 of the present invention utilizes the above-described operation principle.

In the work transfer device 1, when the rod 50a of the cylinder actuator 50 is in the retracted position, each component of the work transfer device 1 is occupied in the standby position shown by a solid line in FIGS. 1. From the left side in FIG. 1, the work 10 is
0 is carried into the position indicated by the solid line in the figure.

At this time, the engaging claw 73 of the work moving member 70 is flipped counterclockwise around the pin 72 by the upper part of the work 100 going right in FIG. On the other hand, the work 100
Is carried into the position shown by the solid line,
Returns to the position shown by the solid line by the urging force of the coil spring 76.

After the work 100 is carried into the predetermined position, the rod 50a of the cylinder actuator 50 is extended, and as shown in FIG.
The distance between the lifting arm 40 and the first
While moving upward while being supported by the parallel link arm 20 and the second parallel link arm 30, the working arm 60 swings counterclockwise about the pin 32. Further, with the upward movement of the lifting arm 40 and the swinging of the working arm 60, the main support arm 10 swings clockwise, whereby the work moving member 70 moves in a substantially horizontal direction.

As shown in FIG. 7, when the main support arm 10 extends upward, the elevating arm 40 has moved to the uppermost position.
a is further extended, as shown in FIG.
0 turns to descend, and the work arm 60
It still swings counterclockwise around.

The lowering of the elevating arm 40 and the work arm 6
0, the main support arm 10 further swings in the clockwise direction.
Keeps moving substantially horizontally to the operating position shown in FIG.

That is, by extending the rod 50a of the cylinder actuator 50, the work moving member 70 moves in a substantially horizontal direction from the standby position shown in FIG. 5 to the operation position shown in FIG.
00 is pushed by the claw member 73 of the work moving member 70,
It is transferred from the position shown by the solid line in FIG. 1 to the carry-in position shown by the chain line.

After transferring the work 100 to a predetermined carry-in position, the rod 50a of the cylinder actuator 50
, The work moving member 70 is horizontally moved from the operation position (chain line) to the standby position (solid line) shown in FIG. Prepare and wait.

It should be noted that the shape of each arm described above can be appropriately set according to various conditions such as the required moving amount of the work and the installation location of the apparatus.

Further, in the work transfer device of the embodiment, the work is moved over a wide range straddling the main support arm, but the work is moved within a range not including the fulcrum of the main support arm. Such a configuration is also possible. In this case, the configuration of each arm can be extremely simplified according to the configuration of FIG. 10 showing the basic operation of the work transfer device.

Further, the work transfer device according to the present invention is not only used for the device for pushing the work into the rust preventive coating device shown in the embodiment, but may be various means for moving the work in the horizontal direction. Needless to say, it can be effectively applied to various facilities.

[0026]

As described in detail above, in the work transfer device according to the present invention, the main support arm is swingably supported on the device base around the horizontal axis perpendicular to the transfer direction of the work, and is operated. An elevating arm for swingably supporting a cylinder actuator having an axis extending in the vertical direction is supported movably up and down via a first parallel link arm and a second parallel link arm, and an end of the cylinder actuator is provided at an end. An upper arm portion having a rod connected to a pin, and a lower arm portion having a length twice as long as the main support arm, having a free end of the main support arm connected to a pin at a middle point, and a work moving member being pin connected to the end. The work arm is pivotally supported on the lifting arm via a pin, and one end of a work parallel link arm that is parallel to the lower arm of the work arm is used as a work moving member. And the other end is pin-connected to the arm of the elevating arm parallel to the work moving member.The work arm is driven to rotate based on the extension / retraction operation of the cylinder actuator, thereby moving the work moving member in the horizontal direction. It is configured to be moved. According to such a configuration, the work arm to which the work moving member is pin-connected is
By driving the operating axis with a cylinder actuator extending vertically, the cylinder actuator does not extend along the horizontal direction, and the horizontal dimension of the device can be reduced as much as possible. Therefore, the work can be moved in the horizontal direction without increasing the installation space. According to the configuration of the present invention described above, the work arm is directly rotated and driven by the cylinder actuator, so that the work arm is largely swung to move the work moving member in the horizontal direction, thereby extending over a long distance. Thus, the workpiece can be transferred in the horizontal direction.

[Brief description of the drawings]

FIG. 1 is an overall front view of a work transfer device according to the present invention.

FIG. 2 is an overall side view of the work transfer device according to the present invention.

FIG. 3 is a top view of a main part of the work transfer device according to the present invention.

FIGS. 4A and 4B are cross-sectional views taken along line AA and line BB in FIG.

FIG. 5 is a conceptual overall front view showing an operation mode of the work transfer device according to the present invention.

FIG. 6 is a conceptual overall front view showing an operation mode of the work transfer device according to the present invention.

FIG. 7 is a conceptual overall front view showing an operation mode of the work transfer device according to the present invention.

FIG. 8 is a conceptual overall front view showing an operation mode of the work transfer device according to the present invention.

FIG. 9 is a conceptual overall front view showing an operation mode of the work transfer device according to the present invention.

FIG. 10 is a conceptual diagram showing a basic operation of the work transfer device according to the present invention.

FIG. 11 is a sectional side view of a main part showing a conventional work transfer device.

[Explanation of symbols]

1. Work transfer device 2. Column (device base) 10,
... Main support arm, 20 ... First parallel link arm, 2
DESCRIPTION OF SYMBOLS 1 ... Support shaft, 30 ... 2nd parallel link arm, 31 ... Support shaft,
32: Pin, 40: Lifting arm, 50: Cylinder actuator, 60: Working arm, 60a: Upper arm, 60b
... Lower arm, 70. Work moving member, 80. Work parallel link arm, 100. Work.

Claims (2)

(57) [Scope of request for utility model registration] 1. A work transfer device for transferring a work in a horizontal direction, the work transfer device comprising: a horizontal axis orthogonal to a transfer direction of the work;
A main support arm (10) swingably supported on the device base (2), and a first parallel link arm (20) and a second parallel arm on the device base (2).
It is supported movably up and down via the parallel link arm (30),
A lifting arm (40) for swingably supporting a cylinder actuator (50) having an operating axis extending in the vertical direction; and a swinging support for the lifting arm (40) via a pin (32). Rod (50a) of cylinder actuator (50) at end
Upper arm (60a) with the main support arm (10)
A work arm having a length twice as long as the lower arm (60b) having a free end of the main support arm (10) pin-connected to the middle point and a work moving member (70) pin-connected to the end (60) and the lower arm (60b) of the working arm (60), one end of which is pin-coupled to the work moving member (70), and the other end of which is parallel to the work moving member (70). The arm (40) of the lifting arm (40)
a) a work parallel link arm (80) pin-coupled to the work arm (60) about the pin (32) based on the extension / retraction operation of the cylinder actuator (50). And a work transfer device configured to move the work moving member (70) in a horizontal direction. 2. A pin (32) supporting the working arm (60) on the lifting arm (40), the lifting arm (40) and the working arm.
The work transfer device according to claim 1, wherein the (60) and the second parallel link arm (30) are swingably connected to each other.