JPH06329241A - Transfer device - Google Patents

Abstract

PURPOSE:To improve a precision of load transfer position in a transfer device, which relatively lifts/lowers a load suspension supporting hanger, which is arranged in a conveying moving device, and a load supporting platform on the ground side so as to transfer a load between them. CONSTITUTION:A hanger 7 is provided with vertical direction fitted parts 24a, 25a and load positioning mess 19 arranged in load supporting parts 15a-16b. The load positioning means 19 is tightly provided with multiple freely elevatable pins to be pushed down by a supported part 8a of the load, and vertical direction fitting parts 31a, 32a, which correct positional deviation in the fixed range during relatively approaching the hanger 7, fit in with the vertical direction fitted part, 24a, 25a, and positions the hanger 7, are arranged on the load supporting platform 30 side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer device for transferring a load between a load suspending hanger provided on a transfer device and a load support table on the ground side. It relates to a mounting device.

[0002]

2. Description of the Related Art A hanger for suspending and supporting a load provided on a moving device for transportation which is guided by a guide rail erected at an appropriate height above a floor surface, and fixedly mounted on the ground side, for example. Such as a load support stand installed on the ground, a load support stand on a load carrier that travels on the guide rail on the ground side,
As a method of transferring loads between various ground-side load supports, for example, the hanger can be opened and closed freely,
The transfer moving device is transferred onto an elevating rail of an elevating and lowering transfer device generally called a drop lift, and the transfer moving device is lowered by the elevating and lowering rail, and the ground-side load support table located directly below the elevating rail. After moving the hanger that is open to a level slightly lower than the load supported at the predetermined position, close the hanger and raise the elevating rail to lift the load on the load support table from the hanger. The method of lifting by the support part, therefore, the method of transferring from the hanger onto the load support table in the reverse procedure,
It has been known. Of course, there is also a method of raising / lowering only the hanger without raising / lowering the transfer device itself, and a method of raising / lowering the load support base without raising / lowering the hanger.

[0003] Using such a transfer device, the work on the load support table on the delivery side is transferred to the hanger of the transfer device for transfer and transferred, and the load is unloaded on the load support table on the load receiving side. Is generally performed in the transportation line of parts such as automobile bodies and engines in automobile assembly plants, but what is important here is that the load is placed at a fixed position on the load receiving base. It is to be reprinted with high accuracy.

Conventionally, in order to improve the transfer accuracy, all of the components such as an elevating and conveying device (drop lift) equipped with an elevating rail, a hanger body, and a load supporting part of the hanger are manufactured with high precision, and The load on the hanger was made to approach the load support platform accurately. In such a conventional method, it takes a great deal of time to adjust the equipment on site, so that it takes a lot of time and effort to stably operate the equipment.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and its features are shown by the reference numerals of the embodiments described later. The transfer device of the present invention moves the load (8) relative to the load suspension support hanger (7) provided on the transfer device (1) and the load support base (30) on the ground side. ) Is transferred between the two, the hanger (7) is a load positioning means provided on the vertically fitted parts (24a, 25a) and the load support parts (15a to 16b). (19), and the load positioning means (19),
Lifting pin that can be pushed down by the supported part (8a) of the load
(17) is densely equipped with a large number of the load supporting base (30)
On the side, when the relative approaching movement with the hanger (7) is corrected, the positional deviation within a certain range is corrected, and the vertically fitted portion (24a, 25a).
It is characterized in that it is provided with vertical fitting portions (31a, 32a) which fit into (a) and position the hanger (7).

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1 to 3, reference numeral 1 is a transfer moving device, which is installed at an appropriate height above the floor surface. Drive trolley 5 and driven trolley 6 guided by the guide rails 2 and the lift rails 4 of the lift transport device (drop lift) 3.
And the hanger 7 is hung. Hanger 7
Is a suspension frame 10 for suspending a pair of hanger arms 9A and 9B that support the left and right sides of a load 8 such as an automobile body.
On the other hand, it is pivotally supported around the horizontal support shafts 11a and 11b so as to be openable and closable, and is normally held in a closed posture shown by a solid line in FIG.
For example, it is performed by a hanger opening / closing device (not shown) provided so as to move up and down integrally with the elevating rail 4.

Both hanger arms 9A of the hanger 7,
9B is a load support part 15a, 16a and 15b, 16b which is inward from the lower ends of the pair of columns 13a, 14a and 13b, 14b, which are integrated by the connecting members 12a, 12b.
As shown in FIG. 4, a large number of vertically movable pins 17 that are pushed down by the supported portion 8a of the load 8 are densely mounted on the base 18 on each of the load supporting portions 15a to 16b. The load positioning means 19 is provided.

[0008] The load positioning means 19 is an actual flat opening 3-1.
In the conventional well-known device described in Japanese Patent No. 18868, each elevating pin 17 can be urged in the ascending direction by a spring one by one. Each of the vertically movable pins is press-fitted into the through hole so that the pin can be lowered only when a certain pressing force is exerted. In this case, the base 18 is made of plastic or a bush made of plastic is fitted and fixed in the through hole so that the vertically movable pin 17 can be securely held by frictional force. Further, in the case of such a load positioning means, it is necessary to push up each of the vertically movable pins 17 by the push-up plate before transferring the load. More specifically, as shown in the drawing, each of the columns 13a
Support plates 20a-2 projecting from the lower ends of
A rectangular through hole 22 is provided at the tip of 1b in parallel with the side of the load 8, and the load positioning means 1 is provided above the through hole 22.
By mounting and fixing the rectangular base 18 of No. 9 in an oblique direction rotated on the horizontal plane by 90 degrees, the load positioning means 19 (base 18) can be moved in the front-rear, left-right direction relative to the plane area of the load. The positional deviation allowance can be increased. In addition,
The through hole 22 is used as an elevating space for the lifting plate.

On the outside of the lower ends of the pair of columns 13a, 14a of the hanger arm 9A on one side of the hanger 7,
Vertically fitted portion 24 having vertical through holes 23
a and 25a are provided. The opening at the lower end of the through hole 23 extends like a trumpet.

The elevating / conveying device 3 is well known in the art, and the elevating rail 4 is supported on the lower side of the tip of a carriage 27 which is supported so as to be able to move up and down along a column 26. Chain 29 of lifting drive means 28
Can be driven up and down. A load support base 30 provided with a jig for supporting the load 8 at a fixed position is installed just below the lift rail 4 in the lift transport device 3.
Vertically fitting portions 31a and 32a that can be raised and lowered are provided at the lateral positions of the load support base 30. The vertical fitting portions 31a, 32a are composed of a vertical pin 33 with a tip, and the lifting member 3 for supporting the vertical pin 33 inside the upper end.
4 is supported by a lifting guide rail 35 standing upright at a fixed position with respect to the load support base 30 so as to be able to move up and down, and an air cylinder 36 having a piston rod 36a connected to the outside of the upper end thereof lowers the lower limit level L1 and the upper limit level L2. Driven up and down between and.

In the above-mentioned structure, the load support base 30
When the load 8 supported at the predetermined position above is transferred to the hanger 7 of the transfer device 1, the transfer device 1 with the empty hanger 7 is moved from the guide rail 2 to the lift rail 4 of the lift transfer device 3. After stopping the vehicle at a predetermined position, the pair of hanger arms 9A and 9B of the hanger 7 is opened by a conventionally known hanger opening / closing device (not shown) attached to the carriage 27 (elevation rail 4). Then, the elevating rail 4 is lowered together with the carriage 27, and as shown in phantom lines in FIG.
Is lowered to a level slightly lower than the bottom surface of the load 8.

Next, the hanger arms 9A, 9 of the hanger 7
B is closed by the hanger opening / closing device to move each of the load supporting portions 15a to 16b below the bottom surface of the load 8 projecting laterally from the load supporting base 30, and then an elevating member by the air cylinder 36. 34 is raised and the lower limit level L
1. Vertical pins 33 of the vertical fitting portions 31a and 32a in FIG.
Is fitted upward into the through holes 23 of the vertically fitted portions 24a and 25a on the hanger 7 side. At this time, with respect to the position of the vertical pin 33 of the vertical fitting portions 31a, 32a, the through hole 23 of the vertical fitting portions 24a, 25a on the hanger 7 side.
Is displaced in the horizontal direction, as long as the displacement amount δ is within the range in which the vertical pin 33 can be fitted in the through hole 23, the vertical pin 33 is corrected in the through hole 23 while correcting the positional displacement of the hanger 7. Will be inserted.

The elevating member 34 stops when the vertical pin 33 has completely entered the through hole 23. After that, when the elevating rail 4 (transportation moving device 1) is raised together with the carriage 27, the elevating member 34 (vertical pin 34 33) is an urging force from the air cylinder 36, which rises integrally with the rise of the hanger 7 and maintains the state of being fitted into the through hole 23. When the vertical pin 33 reaches the ascending limit level L2, the supported portions 8a at two places on each side of the load 8 on the load support base 30 are scooped up by the four load supporting portions 15a to 16b on the hanger 7 side. At this time, each supported portion 8 of the load 8 is
a is a liftable pin 17 directly below the supported part 8 among the liftable pins 17 of the load positioning means 19 in the load support parts 15a to 16b on the hanger 7 side, and the load support parts 15a to 15a. Since it is placed on 16b, the load 8 picked up by the hanger 7 is positioned around the supported portion 8 of the load 8 and is positioned by the up-and-down movable pin 17 which is in an upright state without being pushed down. Floating in the horizontal direction on the load supporting portions 15a to 16b of the hanger 7 is prevented.

That is, the hanger 7 has vertical fitting portions 31a and 32a (vertical pins 33) which are at fixed positions with respect to the load support base 30 and vertical fitting portions 24a and 2 on the hanger 7 side.
5a (through hole 23) is fitted to the load support base 30 while being positioned at a fixed position with respect to the load support base 30.
The load 8 supported at the predetermined position above is picked up, and the picked-up load 8 is fixed to the hanger 7 by the load positioning means 19, so that the load 8 is fixed to the hanger 7 at a constant position. It has been positioned and supported by.

As described above, the load 8 is transferred to the hanger 7 of the transfer device 1 by the lifting of the elevating rail 4.
Further, the carriage 27 raises the elevating rail 4, and the air cylinder 36 lowers the elevating member 34 to separate the vertical pin 33 from the through hole 23 on the hanger 7 side downward. Then, when the elevating rail 4 rises to the ascending limit level connected to the guide rail 2 and stops, the transfer moving device 1 is transferred to the guide rail 2 side, and the transfer moving device is moved along the guide rail 2. By traveling 1, the load 8 supported by the hanger 7 can be transported to the destination.

At the destination, the above-described lifting / lowering transport device 3, the load support base 30, and the vertical fitting portions 31a and 32a (vertical pins 33) are arranged. Thus, the load 8 supported by the hanger 7 on the load support base 30 at this destination.
When unloading, the unloading work is performed just in the reverse order of the above. That is, the vertical pins 33 of the vertical fitting portions 31a and 32a are moved to the ascending limit level L2 by the air cylinder 36.
In the state of being raised and waited by, the transporting movement device 1 stopped at a fixed position on the lifting rail 4 is lowered to the lowering limit by lowering the lifting rail 4.

As a result, the load 8 supported by the hanger 7 is transferred onto the load support base 30 immediately before the transfer device 1 reaches the lower limit level, but before this transfer, the vertical pin 33 is lowered. The hanger 7 is inserted into the through holes 23 of the vertically fitted parts 24a and 25a to correct the positional deviation of the hanger 7, and the hanger 7 is attached to the load support base 3
It will be positioned at a fixed position relative to 0. Therefore,
The load 8 supported by the load supporting portions 15a to 16b of the hanger 7 is positioned and transferred at a fixed position on the load support base 30.

Vertically fitted portion 24a on the hanger 7 side,
The vertical pin 33 fitted in the through hole 23 of 25a is pushed down against the urging force of the air cylinder 36 as the hanger 7 (transportation moving device 1) descends. Then, the hanger 7 reaches the lower limit level, and the load 8 receives the load support table 30.
If it is transferred to the upper position, the vertical pin 33 is lowered to the lower limit level L1 by the air cylinder 36, and then the hanger arms 9A and 9B of the hanger 7 are moved to the carriage 27.
It is opened by a hanger opening / closing device attached to the (elevation rail 4), and is moved by the elevator rail 4 for transporting device 1.
Should be raised.

The hanger 7 is supported by the two vertical fitting parts 24a, 25a on the hanger 7 side and the two vertical fitting parts 31a, 32a on the load supporting base 30 side.
However, the numbers of the vertically fitted portions and the vertically fitted portions are not limited. They can be one at a time, or as shown in phantom in FIG.
The up-down direction fitted parts 24a to 25b are provided for each of the four load supporting parts 15a to 16b on the side, and the four up and down parts are provided on the load support table 30 side in correspondence with these four up-and-down fitted parts 24a to 25b. A direction fitting portion (vertical pin 33) can be provided. Further, a vertical pin 33 having a sharp lower end may be provided as a vertically fitted portion on the hanger 7 side, and a through hole 23 may be provided as a vertically fitted portion on the load support base 30 side. Of course, the vertically fitted portion and the fitted portion are not limited to the combination of the through hole 23 and the vertical pin 33. The load positioning means 19 includes four load supporting portions 15a to 15a.
Although it is provided on all 6b, it may be provided on at least two load supporting portions.

The vertically fitted portion on the hanger 7 side can be formed at the lower ends of the columns 13a to 14b of the hanger 7. For example, the through-hole 23 as the vertically fitted portion
When installing the columns, as shown in FIG.
A cylindrical body 38 is concentrically attached to the lower end of the pipe material forming b through the attachment plate 37, and the central through hole of this cylindrical body 38 is used as the through hole 23 of the vertically fitted portions 24a to 25b. You can

[0021]

As described above, according to the transfer device of the present invention, the load suspending and supporting hanger provided on the transfer device moves relatively close to the load support base on the ground side. At this time, the vertically-fitted portion on the hanger side and the vertically-fitted portion on the load support base side are fitted to each other to correct the positional displacement of the hanger with respect to the load support base within a certain range, and The load transferred from the load supporting base to the load supporting part of the hanger is fixed in a state in which the load cannot be moved by the load positioning means arranged in the load supporting part. As long as the load is supported at the position where the center of the load support is aligned with the center of the load, the load is surely supported at the fixed position of the hanger, for example, the position where the center of the hanger is aligned with the center of the load. Will be done. Of course, when the load is unloaded from the hanger side on the load support table, the load supported at the fixed position on the hanger side is positioned and unloaded at the fixed position on the load support table.

Therefore, a means for moving the hanger (transportation moving device) and the load support base up and down relatively, for example, an elevator transportation device called a drop lift, a hanger body,
Even if the accuracy of components such as the load support part of the hanger is a little poor, and the approach position of the hanger with respect to the load support on the ground side is slightly displaced, the load transfer position accuracy from the load support to the hanger and The accuracy of the unloading position with respect to the load support table is sufficiently high, so that the load supported by the hanger can be transported safely and various operations by the automatic device for the load unloading on the load support table can be performed safely. Of course, after the installation of the equipment, the time and effort required for the adjustment to operate the equipment stably can be reduced.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view illustrating a load transfer function.

FIG. 2 is a front view of the same.

FIG. 3 is a cross-sectional plan view of a hanger.

FIG. 4A is a plan view of one load supporting portion, and FIG. 4B is a partially longitudinal side view of one load supporting portion in a state of supporting a load.

FIG. 5 is a partially cutaway side view showing a modified example of the vertically fitted portion on the hanger side.

[Explanation of symbols]

 1 Transporting device 2 Guide rail 3 Lifting / transporting device (drop lift) 4 Lifting rail 7 Hanger 8 Cargo (car body) 9A Openable hanger arm 9B Openable hanger arm 15a Hanger load support 15b Hanger load support Part 16a Hanger load supporting part 16a Hanger load supporting part 17 Elevating pin 19 Load locating means 23 Through hole 24a Hanger side vertical direction mating part 24b Hanger side vertical mating part 25a Hanger side vertical direction Fitted part 25b Vertically fitted part on the hanger side 27 Lifting carriage 30 Load support base 31a Vertical fitting part on load support base 32a Vertical fit part on load support base 33 Vertical pin with a tip 34 Lifting Member 35 Lifting guide rail 36 Air cylinder

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location B65G 67/00 7456-3F B66C 1/28 Z 8709-3F 13/06 A

Claims (2)

[Claims] 1. A load suspension support hanger (7) provided on a transfer device (1) and a load support base (30) on the ground side are moved up and down relatively to load both loads (8). In the transfer device transferred between the hanger (7), the hanger (7) and the vertical fitting part (24a, 25a),
The load supporting means (15a to 16b) is provided with a load positioning means (19), and the load positioning means (19) is a supported part (8a) of the load.
It is equipped with a large number of vertically movable pins (17) that can be pushed down by the load support base (30), and corrects the positional deviation within a certain range when moving relative to the hanger (7). Then, the transfer device is provided with vertical fitting portions (31a, 32a) for fitting the vertical fitting portions (24a, 25a) and positioning the hanger (7). 2. The up and down fitted parts (24a, 25a) of the hanger (7).
a) consists of the vertical through hole (23), and the vertical fitting parts (31a, 32a) on the side of the load support (30) are the pin (33) fitted with the through hole (23). The transfer device according to claim 1.