JP2642341B2 - Parts supply and assembly equipment for assembly lines - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an apparatus for supplying and assembling components on an assembly line.

(Prior Art) In an assembly line of an automobile or the like, a work is supported by a pallet, the pallet is transported by a conveyor means, and parts are assembled to the work.

In such a line, it is known that a work head member is provided below the conveyor means so as to be able to move up and down, and work is added to the work from below (for example, Japanese Utility Model Publication No. 52-2166).
No. 2).

(Problems to be Solved by the Invention) However, since the elevation drive means for elevating and lowering the work head member is provided continuously below the work head member, the work vertically arranged below the conveyor means. A large space for accommodating the head member and the elevation drive means is required, the height of the conveyor means is increased, and it is difficult for an operator to work on the work conveyed by the conveyor means.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a component supply and assembling apparatus for an assembling line that is compact in a vertical direction below a conveyor means.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a work head member for assembling parts to a work and an ascending and descending work head member in the assembly line as described above. Member moving means for moving the work head member between a component assembling position below the conveyor means and a side component supply position, ascending drive means for elevating the work head member with respect to the pallet, and the conveyor means And a work drive means which is provided at a component mounting position below the conveyor means and is operable in cooperation with the raised work head member from below to perform a work operation.

(Operation) At the time of work, the work head member located below the conveyor means is raised by the ascending drive means, and the work drive means moves and is linked from below to the raised work head member, and the work head member Work operation. The work head member is movable by a member moving means between a component supply position on the side of the conveyor means and a component assembling position below.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

As shown in FIG. 1 showing the overall configuration, the working device of the assembly line supports a rear axle A as a work on a pallet B, conveys the pallet B by a conveyor means C, and In the line where the work is sequentially performed, a hub cap D (third supply) supplied separately from a parts feeder (not shown) is supplied to the rear axle A.
(See the figure).

The work head member 1 for press-fitting the hub cap D into the rear axle A is disposed at a position below the conveyor means C so as to be pivotable. Work head member 1
Are the engagement pins 3, 3 protruding from the gate-shaped lifting member 2.
Are engaged with the engaged portions 4, 4 fixed to the working head member 1 and opened to the side, and the elevating member 2 is connected to the pair of cylinders 5, 5,
, So as to move up and down integrally with the elevating member 2.

The two cylinders 5, 5 each include a cylinder body 5a fixed to a side portion of the elevating member 2, and a piston rod 5c fitted into the cylinder body 5a and having a flange portion 5b. By supplying the pressure oil to the oil chamber formed above the portion 5b, the cylinder body 5a moves vertically with respect to the piston rod 5c. As a result, a lifting drive means for raising the working head member 1 with respect to the pallet B is configured.

As shown in detail in FIG. 3, the working head member 1 has a movable member 6 having a press-fit portion 6a at an upper end and a flange portion 6b at a lower end slidably fitted in a cylindrical casing 7 in a vertical direction. Inserted and supported.

A spring 8 is contracted between the flange 6b of the movable member 6 and the casing 7, and the movable member 6 is constantly urged downward.

An opening 7a is formed in the casing 7, through which the detecting portion 9 attached to the movable member 6 via the support bracket 10 protrudes. A position detection sensor (not shown) is provided at the first position, and the movement of the detection unit 9 is used to confirm that the movable member 6 has risen.

The work head member 1 is pivotably supported by a pivot arm 20 as a member moving means. That is, in the turning arm 20, the boss portion 20a is rotatably fitted to the turning center shaft 21, and the driving motor 23 is mounted on the mounting base 22 fixed to the turning center shaft 21. The rotation shaft 23a is linked to the boss 20a of the turning arm 20. Accordingly, the turning arm 20 is rotated by the drive of the drive motor 23, and the work head member 1 moves between the component mounting position below the conveyor means C and the component supply position on the side.

The work head member 1 is located below the hub cap supply means 11 at the component supply position on the side of the conveyor means C, and the hub cap D is supplied therefrom. The hub cap supply means 11 is, as shown in FIGS. 4 to 6, one hub cap D rotatably supported by the base 12 and supplied from a parts feeder (not shown).
, A pair of pivot arms 13, 13 for cutting off from the remaining hub cap D, a cylinder 15 for opening and closing the pivot arms 13, 13 via a connecting member 14, and a pivotable support for the base 12. Pair of holding arms for supporting the hub cap D from both sides
16,16, springs 17,17 for constantly urging the holding arms 16,16 in the hub cap holding direction, and holding arms 16,17 via the hub cap D against the spring force of the springs 17,17. 16 and another cylinder 18 for rotating the opening 16 in the opening direction. At the tip of the piston rod 18a of the cylinder 18,
An engagement member 19 that engages with the hub cap D is attached.

Beside the conveyor means C, the conveyor means C
A work drive means 24 is provided in the lower component mounting device and linked to the working head section 1 raised from below to perform a working operation therefrom. The work driving means 24 is provided on a moving table 25, and the moving table 25 can be traversed by a cylinder 26 between a side position and an outer position of the conveyor means C. The cylinder 26 has a cylinder body 26a fixed to a support table 28 fixed to a base 27, and a distal end of a piston rod 26b of the cylinder 26 having a plate 2
Connected and fixed to 9.

In the work drive means 24, a movable part 31 is inserted into the base part 30 so as to be slidable in the vertical direction, and a contact part 32 is fixedly provided at an upper end of the movable part 31. At the upper end of the base 30, a position detection sensor 33 for detecting the movement of the movable section 31 is provided.

Further, the working head member 1 is provided with engaging portions 41, slidably engaging with rail portions 40, 40 provided at the end of the turning arm 20.
Side plates 42, 42 having 41 are erected laterally, and the above-mentioned engaged portions 4, 4 are fixedly provided on the side plates 42, 42 opposite to the engaging portions 41, 41. Therefore, the work head member 1 is supported by the turning arm 20 so as to be movable in the vertical direction.

Reference numeral 50 denotes a backup means for pressing the rear axle A immovably from the upper side during the press-fitting operation of the hub gap D, and is provided above the conveyor means C. Numeral 51 denotes a buffer means for stopping the turning arm 20 at the component supply position without impact.

According to the above configuration, when the rear axle A (work) placed on the pallet B is transported to the working position by the conveyor means C, first, the cylinders 5, 5 are operated to move the lifting member 2 up and down. Is raised. At that time, the lifting member 2
Since the engaging pins 3, 3 of the working head member 1 are engaged with the engaged portions 4, 4, the working head member 1 is also brought into contact with the rail portions 40, 40 of the swivel arm 20 by raising the elevating member 2. Rise along. The work head member 1 receives the supply of the hub cap D from the hub cap supply means 11 at the component supply position, and is located at a lower position with the hub cap D supported by the press-fitting portion 6a of the movable member 6.

Then, the work drive means 24 located on the side of the work head member 1 is moved from the side position to the lower position by the operation of the cylinder 26.

Then, the movable part is
31 rises and presses the flange 6b at the lower end of the movable member 6 of the working head member 1. Due to this pressing, the movable member 6 is displaced upward against the elastic force of the spring 8. As a result, the hub cap D is pressed into the rear axle A.

After the press-fitting operation is completed, the pressing of the work drive means 24 by the movable portion 31 is released, and the movable member 6
Returns to its original state.

The work driving means 24 is moved from the lower position to the side position by the cylinder 26, and the lifting member 2 and thus the work head member 1 are lowered by the weight of the lifting member 2.

Hereinafter, similarly, the press fitting operation of the hub cap D into the next rear axle A is performed.

(Effects of the Invention) As described above, the present invention moves the work head member that moves up and down below the conveyor means and allows the work drive means to traverse the work head member. In addition to the compactness, the supply of assembled parts and the maintenance can be facilitated.

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS The drawings show an embodiment of the present invention, wherein FIG. 1 is an overall configuration diagram of a working device of an assembly line, FIG. 2 is a sectional view of a working drive means, FIG. 5 and 5 are side and front views of the hub cap supply means, FIG. 6 is a cross-sectional view taken along the line VI-VI of FIG. 4, and FIG. 7 is a plan view of the working device shown with the working head member omitted. FIG. 8 is an explanatory view of a state in which the working head member is attached to the turning arm. A: Rear axle (work), B: Pallet, C:
... Conveyor means, D ... Hub cap, 1 ... Work head member, 2 ... Elevating member, 5,26 ... Cylinder, 11 ... Hub cap supply means, 20 ... Slewing arm, 24 ... Work drive means .

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kyoji Hida 1 Okamura, Okimura, Nishiharu-cho, Nishikasugai-gun, Aichi Prefecture Inside Sanyo Kiko Co., Ltd. (56) References JP-A-61-220980 (JP, A)

Claims (1)

(57) [Claims] An assembly head for supporting a work on a pallet, transporting the pallet by conveyor means, and assembling parts to the work, and a work head member for assembling parts to the work, A member moving means for supporting the head member so as to be able to move up and down and moving the work head member between a part assembling position below the conveyor means and a side part supply position, and a lifting drive for raising the work head member with respect to the pallet Means, and work drive means which is provided to be traversable on the side of the conveyor means, is located at the part assembling position, and is linked to the raised work head member from below to perform a work operation thereon. Parts supply and assembling equipment for assembly lines.