JPH07106537B2 - Slider-on-slider transfer device - Google Patents

Description

TECHNICAL FIELD The present invention relates to an improvement of a slide type transfer device having two kinds of transfer feed lengths.

(Prior Art) For example, a transfer device is adopted as a device for supplying a work to an automatic work line or an automatic assembly line. Further, in these automatic lines, since the worker is in charge of a wide range of processes, it is necessary to plan the factory so that the worker can view from a distance. In addition, it is necessary to secure a sufficient walking space for workers so that the working environment is less dangerous.

Such workability greatly affects the mental aspect of the worker,
It is one of the major factors in improving productivity. For these reasons, it is desired that each machine is short and downsized.

Transfer devices are roughly classified into a serial type and a parallel type, and a conventional transfer device will be described for each of them.

FIG. 8 shows a conventional serial transfer device which rotates the arms 24 and 26 around the rotation center P and moves the long slider 22 along the guide bar 2 by a stroke L1. Then, the short slider 23 is moved by the stroke L2 by the rotation of the arm 26 via the arm 27 connected to the arm 26. When the arm 26 rotates about the rotation center P, it draws a circular arc, and therefore, 25 is a long groove provided for escape of the height of the circular arc. 16 is the guide bar 2
Is a support pillar that supports the.

FIG. 9 shows a conventional parallel type transfer device, in which a long slider 22 and a short slider 23 are moved by being guided by two guide bars 2 and 3 supported by a supporting column 16. ing. Then, for the drive, the arms 29 and 30 are rotated by the drive device 14, and the arm length L1 × 2,
L2 × 2 stroke only, long slider 22, short slider 23
Moves. Reference numeral 12 denotes a square block, which is moved up and down by the rotation of the arms 29 and 30, and is provided to change the rotary motion of the arm into a linear motion. 28 is a shaft for transmitting the driving force of the driving device 14.

(Problems to be Solved by the Invention) In the conventional transfer device described above, in order to obtain a desired stroke, an arm having a length corresponding to the stroke is required (in the case of a serial type, L8 in FIG. In case of formula, L1 dimension in Fig. 9).

Therefore, the height of the transfer device is required to be about the length of the arm, and for example, to obtain a stroke of 2 meters, the height of the transfer device is also required to be about 1 meter.

As a result, the visibility of the worker deteriorates, and the worker has to go to the place each time when checking the site. Further, in the case of the serial type, the total length L of the transfer device becomes long and extends to the walking path of the worker, and in the case of the parallel type, the width dimension W becomes large and the walking path of the worker becomes narrow. However, there is a problem that the workability is poor because the visibility is poor and a sufficient walkway cannot be secured.

For this reason, it is the actual situation that the transfer device should be made as small as possible in order to improve productivity.

The present invention has been made in view of the above circumstances, and provides a miniaturized slider-on-slider transfer device.

(Means for Solving the Problem) The means for solving the above problems according to the present invention includes a first slider that horizontally moves along a guide bar, and a first arm that moves the first slider. A second slider guide bar fixed to the first slider in parallel with the guide bar; a second slider movably provided on the second slider guide bar via a guide roller; A second arm that is driven by a gear mechanism that is mounted on one slider and that is rotated by the movement of the first slider; and a gear that is rotated by the driving of the second arm is rotatably supported by the second arm. One end is fixed to the shaft, and the other end is provided with a third arm to which the second slider is connected.

(Operation) Since the present invention is configured in this way, it has the following operations. That is, while the first slider is being moved by the first arm, the second slider is simultaneously moved via the second arm and the third arm, and the final movement amount of the second slider is the first arm. Twice the length of the second arm and the third
The total length of the arms is doubled, which makes it possible to obtain a long stroke with a short arm length.

Example An example of the present invention will be described below. In FIGS. 1, 2 and 3, a first slider (hereinafter referred to as a short slider) 1 is guided by guide bars 2 and 3 supported by a support column 16 in a vertically parallel manner so that it can move horizontally. Has become. Reference numeral 4 is a fixed rack fixed to the support column 16, and 5 is a long slider guide bar fixed to the short slider 1 as shown in FIG. A second slider (hereinafter referred to as a long slider) 11 is movably attached to the long slider guide bar 5 via a guide roller 6.

Therefore, the long slider guide bar 5 and the long slider
11 is a slider that moves together with the short slider 1
Further, 11 can be independently moved along the long slider guide bar 5.

As shown in FIG. 3, the short slider 1 is moved by attaching the guide member 17 to the rib 18 of the short slider 1 and rotating the first arm 7 rotated by the driving device 14 up and down in the guide member 17. The moving angular block 12 converts it into a horizontal motion, and the short slider 1 is moved horizontally along the guide bars 2 and 3.

As a result, the short slider 1 is moved by a stroke twice as long as the length L4 of the first arm 7 (the driving device 14 is rotated normally and reversely to reciprocate the first arm 7 180 °).

As shown in FIGS. 2 and 4, the short slider 1
Is equipped with a gear mechanism, and the gear of that gear mechanism is
13 engages with the fixed rack 4 fixed to the support column 16. As a result, when the short slider 1 moves, the gear 13 meshed with the rack 4 is rotated. The rotation of the gear 13 causes the second arm 8 to rotate.

The gear device will be described in more detail. In FIG. 5, the shaft 31 penetrates the rib 18 and is supported by the bearing 32. The gear 19 is fixed to the block 33 fixed to the rib 18 with a bolt 34 with a bolt 37, and the shaft 31 penetrates the gear 19. The second arm 8 is supported by the gear 19 and the block 33 via a bearing 35, and is fixed to the shaft 31 by a bolt 36.

Inside the second arm 8, an intermediate gear 20 meshing with the gear 19 is provided.
A gear 21 that meshes with the intermediate gear 20 is provided, and the intermediate gear 20 and the gear 21 are axially supported by the second arm 8. The third arm 9 is fixed to the end of the shaft of the gear 21.

As a result, by the movement of the short slider 1, the gear 13 meshing with the rack 4 rotates, and the second arm 8 rotates. This rotation of the second arm 8 causes the gear 20 to move to the gear 19
While revolving around and revolving, the gear 21 is rotated to rotate the third arm 9.

The other end of the third arm 9 is rotatably connected to a connecting member 10, and the connecting member 10 and the long slider 11 are fixed. With this gear mechanism, rotation of the gear 13 causes the second
At the same time as the arm 8 is rotated, the third arm 9 is also rotated, and the long slider 11 is simultaneously moved along the long slider guide 5.

The operation of the present embodiment configured as above will be described below. In FIG. 6, when the first arm 7 swings 180 °, the square block 12 moves up and down and is converted into horizontal movement, and the guide member 17 (short slider 1) is moved by a short stroke of l3 + l4. In this case, the length of the first arm 7 is
It is l3 (or l4). The movement of the short slider 1 causes the gear 13 meshing with the fixed rack 4 to rotate.

Next, as shown in FIG. 7, due to the rotation of the gear 13 and the movement of the short slider 1, the total stroke L3 of the long slider 11 is as shown in the following equation.

L3 = L1 + 2L2 (1) where L1 is l3 + l4, and l3 and l4 are the length L4 of the first arm 7 (see FIG. 3). L2 is l1 + l2, and l1 and l2 are the lengths of the second arm 8 and the third arm 9, respectively.

If l1 = l2 = l3 is set here, the length of each arm is 1/2 as compared with the conventional one in order to obtain the stroke length L3 of the long slider 1.

Further, in the width direction, the W dimension shown in FIG. 3 is made as narrow as possible to reduce the occupied area of the base 15 including the driving device 14.

(Effects of the Invention) According to the present invention, the long slider is moved by the second arm and the third arm while the short slider is moved by the first arm. Can be obtained, and the height of the transfer device can be significantly reduced.

Further, since the stroke of the long slider is obtained as the stroke of the short slider and twice the length of the second arm and the third arm, the total length of the transfer device becomes short (the total length of the second arm and the third arm). It will be shortened by the amount), and,
The width dimension can be reduced, and the size can be greatly reduced.

As a result, the workability of the workers is greatly improved and the productivity is improved, and in the automatic line where a large number of transfer devices are installed, the installation area of the factory is reduced, facilitating the planning of factory equipment layout, and It has excellent effects such that productivity can be improved.

[Brief description of drawings]

1 to 7 are views showing an embodiment of the present invention. FIG. 1 is a side view, FIG. 2 is a side view, FIG. 3 is a plan view, and FIG. 4 is A of FIG. -Vertical cross-sectional view taken along line A, fifth
FIG. 6 is a longitudinal sectional view of the gear mechanism, FIG. 6 is an operation explanatory view of the short slider, and FIG. 7 is an operation explanatory view of the long slider. FIG. 8 is a front view of a conventional serial transfer device, and FIG. 9 is a plan view of a conventional parallel transfer device. 1 ... Short slider 2,3 ... Guide bar 4 ... Fixed rack 5 ... Long slider guide bar 6 ... Guide roller 7 ... First arm 8 ... Second arm 9 ... Third arm 11 ... Long slider 12 ... Square block

Claims (1)

[Claims] 1. A first slider for moving horizontally along a guide bar, a first arm for moving the first slider, and a second slider fixed to the first slider in parallel with the guide bar. Guide bar and a second slider guide bar movably mounted on the second slider guide bar via a guide roller.
Slider, a second arm mounted on the first slider and driven by a gear function that rotates by the movement of the first slider, and a gear that rotates by driving the second arm on the second arm. A slider-on-slider transfer device including: a third arm that supports the gear and has one end fixed to the shaft of the gear and the other end connected to the third arm.