JPH0739850Y2 - Work transfer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a work transfer device that shortens the work supply cycle and saves manpower.

(Prior Art) Conventionally, for example, in an automobile mission assembly line, a work of attaching a mission case cover to a mission main body is performed. In this work, the mission case cover is covered from above the mission main body conveyed along the line. The step of inserting the bolts into the plurality of bolt holes is performed manually by an operator. Then, the work in this state is generally sent to the next step and tightened.

(Problems to be solved by the invention) However, since the conventional main work is a simple work and requires manpower and a long working time, labor saving and rationalization of work have been desired.

(Means for Solving the Problem) In order to solve such a problem, the present invention sends a mission case cover, which is carried by a pallet on the upper stage of a sub-line, to a position above the main body of the mission which is carried by the main line. In the work transfer device that grips the workpieces with the gripping device and transfers them onto the mission main body, and returns the empty pallet to the lower stage of the subline, the subline of the subline of the confluence of the mainline and the subline A first elevating body having an upper and lower carrying path at the same height as the upper and lower positions is provided so as to be vertically movable
On the main line side of the merging portion, a second elevating body having an upper carrying path at the same height as the upper position of the sub line was provided so as to be able to move up and down.

Then, when the pallet and the mission case cover are sent from the upper stage of the sub-line to the upper carrying path of the second lifting body via the upper carrying path of the first lifting body, the first and second lifting bodies are raised. After sending the pallet and the mission case cover toward the upper part of the mission main body, grip the mission case cover with the grip device and transfer it, and then
When an empty pallet is returned to the upper carriage of the second lift,
It is configured to lower the second elevating body to transfer the empty pallet to the lower carrying path of the first elevating body, and then to lower the first elevating body to return the empty pallet to the lower stage of the sub line. did.

(Operation) When the mission case cover is attached to the upper part of the mission main body, it is preferable for the subsequent work to face the mission case cover above the mission main body and send it in.

Here, of the pair of lifting bodies provided at the confluence of the main line and the sub-line, the second lifting body provided on the main line side is lifted up and down, and the mission case cover of the upper carrying path of the second lifting body is lifted. To be able to be positioned above the mission body.

If the upper and lower two-stage carrying paths are formed in the first lifting body on the sub-line side, the upper carrying path supplies the pallet and the mission case cover, and the lower carrying path returns the empty pallets. A circulation type feeding device that can simultaneously send the mission case cover and return the empty pallet is configured.

(Embodiment) An embodiment of the transfer device of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is an explanatory view showing an entire automobile mission assembly apparatus to which the transfer apparatus of the present invention is applied, and FIG. 2 is a flow chart.

The transfer device of the present invention is used in an assembly line of an automatic transmission for automobiles, and as shown in FIG. Mission case cover 4 as a sub-work supplied from 3
It is configured between the main line 1 and the sub-line 3 so that the sub-line 3 can be attached, and includes a first lifting body 5 facing the sub-line 3 side and a second lifting body 6 facing the main line 1 side. Further, the sub-line 3 has two upper and lower carrying paths formed in a direction orthogonal to the main line 1, the upper one serving as a supply path for the mission case cover 4, and the lower one serving as a return path for empty pallets. . A jig pallet 7 for transporting the transmission case cover 4 is circulated on the line.

A bolt tightening device 8 and a case cover gripping device (not shown) are provided above the main line 1 facing the second lifting body 6. As will be described later, at this position, when the second lifting body 6 is lifted, the jig pallet 7 transferred onto the upper carrying path 6a of the lifting body 6 is positioned and extended onto the main line 1. At a fixed position, a case cover gripping device (not shown) grips the mission case cover 4 on the jig pallet 7 during this extension, and covers the mission case cover 4 on the mission main body 2 on the main line 1. It is what For this reason, the case cover gripping device and the bolt tightening device 8 can be moved up and down, and the bolt tightening device 8 can be opened and closed in the front-back direction of the drawing.

The first elevating body and the second elevating body 6 each include an air cylinder unit (not shown) for elevating and lowering, and the first elevating body 5 is provided with an upper stage transport path 5a and a lower stage transport path 5b. When driven upward, the height position of the upper carrying path 5a is at the height position of the extension position where the jig pallet 7 extends above the main line, and the height of the lower carrying path 5b is that of the upper stage of the sub-line 3. When the heights of the sub-carriage 5a and the sub-carriage 5a are the same, and the heights of the sub-carriage 5a and the sub-carriage 5b are the heights of the sub-carriage 3a and sub-line 3, respectively.
It is configured to match the height of the lower row. A plurality of drive rollers are used for the upper and lower carrying paths 5a and 5b.

The second elevating / lowering body 6 is provided with an upper carrying path 6a. When the upper cylinder 6 is raised by the air cylinder unit, the upper carrying path 6a is at the height position of the above-mentioned extension position of the jig pallet 7, and when it is lowered, the first carrying path 6a is provided. The height positions of the lower carrying path 5b of the lifting body 5 are made to coincide with each other. A side roller is used for the upper carrying path 6a of the second lifting body 6.

Outline of operation of the transfer device configured in this way
It will be described with reference to the drawings.

As shown in FIG. 2 (A), when the mission case cover 4 is placed on the jig pallet 7 on the upper stage of the sub-line 3 in a positioning manner, the mission case cover 4 is transferred as it is and the first elevating body 5 waiting for descending moves. It is sent to the upper carrying path 5a.

The first elevating body 5 and the second elevating body 6 ascend together as shown in (B), and the jig pallet 7 and the mission case cover 4 are on the main line shown in (C) by a feed mechanism (not shown). Then, only the mission case cover 4 is gripped and the empty jig pallet 7 is returned to the upper carrying path 6a of the second lifting body 6 as shown in (D).

Next, the second lift 6 descends as shown in (E) and (F) to transfer the empty pallet to the lower carrying path 5b of the first lift 5.

During this time, the mission case cover 4 is positioned on the mission body 2 and bolts are tightened by the bolt tightening device 8.

The first elevator 5 having the empty pallet transferred to the lower stage transport path 5b descends as shown in (G) and (H), returns the empty pallet 7 to the lower stage of the subline 3, and supplies the upper stage of the subline 3. Pallets are fed simultaneously and this operation is repeated.

(Effect of the Invention) As described above, the transfer device of the present invention uses two sets of lifting bodies, and one set of the lifting bodies uses the upper and lower carrying paths as the feeding side and the returning side, respectively. As a result, the cycleability is good and the assembly efficiency is improved. In addition, since the sub-line carrying path can be configured in two steps, one is also effective in terms of space saving.

Further, since the mission case cover is sent toward the upper side of the mission main body, thereafter, the work of transferring the mission main body to cover the mission case becomes easy.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an entire automobile mission assembly apparatus to which the transfer apparatus of the present invention is applied, and FIG. 2 is a flow chart. In the figure, 1 is a main line, 3 is a sub-line, 5 is a first lifting body, 5a is an upper carrying path, 5b is a lower carrying path, and 6 is a second carrying path.
6a, an upper carrying path, and a jig pallet.

Claims (1)

[Scope of utility model registration request] 1. A mission case cover, which is carried by a pallet on the upper stage of a sub-line, is sent to above a mission body, which is carried by a main line, and the mission case cover is gripped by a gripping device and transferred onto the mission body. At the same time, in the work transfer device for returning the empty pallet to the lower stage of the sub line, in the sub line side of the confluence of the main line and the sub line, the upper and lower conveying paths at the same height position as the upper and lower position of the sub line. While a first elevating body having a pallet is provided so as to be able to move up and down, a second elevating body having an upper carrying path at the same height as the upper position of the sub-line is provided on the main line side of the merging portion so as to move up and down. When the mission case cover is sent from the upper stage of the sub-line to the upper stage of the second lifting body via the upper stage of the first lifting body. After raising the first and second elevating bodies and feeding the pallet and the mission case cover toward the upper side of the mission body, the mission case cover is grasped and transferred by the grasping device, and then the second elevating unit is lifted. When the empty pallet is returned to the upper carrying path of the body, the second elevating body is lowered to transfer the empty pallet to the lower carrying path of the first elevating body, and then the first elevating body is lowered to empty the pallet. A work transfer device that controls to return the pallet to the lower stage of the sub line.