JPH0366436A - Assembling device for box type work - Google Patents

Abstract

PURPOSE:To reduce the size of a retreating stroke of a bonded head and to perform a highly efficient assembly by bonding multiple tools arranged face to face at prescribed positions of a work with a piston oscillated by air pressure being power source through a toggle link mechanism. CONSTITUTION:In a 1st stage I, a box type work body A and an assembled part B of end plates, etc., are positioned and in a 2nd stage II facing two sides of the work are bonded. In a 3rd stage III, the bonded work is revolved 90 deg.. In a 4th stage IV, residual facing two sides in the work are bonded and the assembled part B by an end plate, etc., is assembled to the box type work body A. In a 5th stage V, an assembled work is transported to the next stage. In the 2nd and 4th stages, the multiple tool composed of a punch 10 and a die 8 which are arranged face to face at prescribed bonding position of the work is bonded with a piston 12 oscillated by air pressure being power source in a sectorial space 11 through the toggle link mechanism 13.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus for assembling a box-shaped workpiece made of metal plates.

[Conventional technology]

BACKGROUND ART Conventionally, there are joining methods such as welding such as spot welding, seam folding, riveting, and bolt/nut fastening for assembling box-shaped metal plate works.

[Problem to be solved by the invention]

Welding such as spot welding must be handled by a welding specialist and cannot be handled by an amateur. In addition, there are many restrictions on where it can be used, and the device is large and complicated.

Furthermore, fastening methods using rivets or bolt nuts require a separate supply device for fasteners such as rivets, making it difficult to miniaturize the device and having the disadvantage that it takes time to fasten each fastener.

The present invention was developed in view of the above-mentioned drawbacks of the prior art, and its purpose is to create a box-shaped product that can be handled by even an amateur, is small and compact, has high work efficiency, and is highly versatile. The present invention aims to provide a workpiece assembly device.

[Means to solve the problem]

The present invention provides a first lifter equipped with a pedestal for positioning and setting the box-shaped work body and assembly parts such as end plates.
stage and the second lifter from the first lifter via the shuttle.
A second stage equipped with a pair of joining heads that approach two opposing sides of the workpiece transferred onto the lifter and join them at once using a multiple tool, and then separate from each other after joining, and from the second lifter. A third stage is provided with a turning mechanism that rotates the workpiece carried in and transferred onto the third lifter via the shuttle, and the workpiece is carried in and transferred from the third lifter onto the fourth lifter via the shuttle. The remaining two opposing sides of the workpieces are approached and joined at once using a multiple tool, and after joining, a fourth stage is provided with a pair of supply heads that are separated, and a fifth A fifth unit equipped with a carry-out means for carrying out the work carried out and transferred onto the lifter to the next process.
The second and fourth stage multi-tools have a punch and a die facing each other at a predetermined joining position of the workpiece, and are driven by a piston that swings in a fan-shaped space using air as a power source. , the bottom of the tank is configured to perform the coupling operation via a toggle link mechanism.

[Effect]

In the first stage, the box-shaped workpiece body and assembly parts such as end plates are positioned and set.

In the second stage, two opposing sides of the workpiece are joined.

In the third stage, the workpieces joined in the second stage are rotated 90'.

In the fourth stage, the remaining two opposing sides of the workpiece are joined together and parts such as end plates are assembled to the box-shaped workpiece body.

In the fifth stage, the assembled workpiece is transported to the next process.

In the second and fourth stages, a multiple tool consisting of a punch and a die, which are arranged opposite to each other at a predetermined joining position of the workpiece, is moved through a toggle link mechanism by a piston that swings in a fan-shaped space using air pressure as a power source. Because it is operating in combination,
Although the power source is compressible air pressure, mechanically strong and sufficient power can be obtained, and the connecting operation can be performed reliably.

〔Example〕

FIG. 1 is a schematic plan view of the device of the present invention, and FIG. 2 is a schematic side view of the device. In both figures, (1) indicates the first stage;
(n) is the second stage, (II[) is the third stage, (
IV) is the fourth stage, and (V) is the fifth stage.

The first stage (1) is equipped with a first lifter (C) with a pedestal for positioning and setting the box-shaped work body (A) made of a thin metal plate and assembly parts (B) such as end plates. .

The first lifter (C) consists of an air cylinder (2> supported by a machine base (1) and a plurality of guides (3), and has a pedestal (4) on its upper surface.

The second stage (I[) consists of a box-shaped workpiece body (A) and an assembled part (B) carried and transferred from the first lifter (C) via the shuttle (D) onto the second lifter (E). ) is provided with a pair of bonding heads (F) that bond together at once by approaching two opposing sides of the bonding head (F) and move away from each other after bonding.

The second lifter (E) has approximately the same configuration as the first lifter (C), and as shown in FIGS. 3 and 4, the pedestal (
4) are arranged on both sides of the shuttle (D), and a plurality of positioning bins (5) are installed on the top surface.

The shuttle CD) is placed between the pedestals (4) and reciprocates between the first stage (1) and the second stage (II), and has a plurality of locking bins (6) installed on the top surface. It is.

The pedestal (4) is raised and lowered by each lifter at each stage, and in the first stage (1), when the pedestal (4) rises, it supplies the box-shaped workpiece body (A) and the parts to be assembled (B). The box-shaped work body (A) and the assembled parts (B) are positioned and regulated in the correct position by the positioning bin (5), and the box-shaped work body (A) is positioned by lowering the pedestal (4). Transfer the ε assembly parts (B) onto the top surface of the shuttle (D). In the second stage (U), when the pedestal (4) rises, it lifts the box-shaped workpiece body (A) and the assembly parts (B) on the shuttle (D). During the descent, the box-shaped workpiece body (A) and the assembled parts (B) are transferred onto the shuttle (D).

A pair of coupling heads (F
) CF), as shown in Fig. 5, a die (8) is installed in the upper part of the press body (6) via a die holder (7), and a punch (lO) is installed in the lower part via a punch holder (9). The punch holder (9) has a piston (
The piston (12) is connected to the piston (12) by the toggle link mechanism (13). ) has a shaft part (12a) integrally at its lower end, and this shaft part (12a) is swingably supported at a diagonal position in the fan-shaped space (11), and this bearing position is located at the piston (12a). ) is installed on the vertical movement axis of the fan-shaped space (11).Air passages are formed at both ends of the fan-shaped space (11), and by feeding air into the fan-shaped space (11) through the air passages, Piston (12)
It operates reciprocatingly.

The toggle link mechanism (13) is formed by connecting both ends of one link to the piston (12) and the punch holder (9), and at the end of the rotation of the piston (12) in the upward direction, A toggle link mechanism (
13) so that the pins at both ends are aligned in a straight line.

The punch (10) and die (8) are connected to the box-shaped work body (
A plurality of pistons (12 ) are supported.

A slide unit (15) is installed in the pair of coupling heads (F) (F) to allow them to approach and separate from each other. The slide unit (15) has a base (16
> The press body (6) is slidably mounted on the upper rail (17) via the slider (18), and the air cylinder (19
) to move the press body (6).

The air cylinder (19) has a support bracket I-(20) screwed onto a fine adjustment screw shaft (21), and the *m adjustment screw shaft (21) is attached to a support stand (22) on the base (16). It is rotatably supported on the shaft. The tip of the piston loft (23) of the air cylinder (19) is connected to the press body (6).
is given an approach/separation action by an air cylinder (19),
Fine adjustment of the position is provided by a fine adjustment screw shaft (21). Note that the second stage (n) includes a box-shaped workpiece main body -c A
) and the assembly part (B) for determining the width of the pusher unit (P
) is installed.

In the third stage (III), the box-shaped work body (A) and the assembly parts (B), whose two opposing sides were joined in the second stage (I[), are taken from the shuttle (D) and lifted up. A third lifter (G) and a rotating unit lift (H) that rotates the workpiece by 90 degrees are installed.

As shown in FIG. 2, the third lifter (G) has an air cylinder (26) and a guide mounted on an upper support (25) supported by a column (24) above the third stage (I). (27
), and a swivel table (29) is rotatably attached to this lift table (28) via a swivel unit (H). (
29), a support arm (30) as shown in FIGS.
) are installed vertically through support rods (31).

A locking pin (32) is provided at the tip of each support arm (30), and is used to lock and hold the box-shaped workpiece body (A) and the assembly part (B).

The swivel unit (H) has a rotary cylinder (33) attached to a lifting platform (28), and its output rotating shaft (34) is fixed to a swivel platform (29).
) by supplying air to the swivel base (29).
It is designed to rotate back and forth within a range of 0°.

The fourth stage (■) is 90 in the third stage (I[[)
°The box-shaped workpiece main body (A) and the assembled parts (B) are moved into the bush by the shuttle (D), and the receiver picks them up.
lifter (J), and a pair of joining heads (K) that approach and join the remaining two opposing sides of the box-shaped workpiece body (A) and the assembly part (B) at once, and separate after joining. (K).

The fourth lifter (J) and joining head (K) (K)
The configuration of the second stage (II) second lifter (E
) and the coupling head (F)CF),
Since the action is similar, the explanation thereof will be omitted.

In the fifth stage (V), the box-shaped workpiece body (A) and the assembly parts (B), which have been joined in the fourth stage <IV), are
A fifth lifter (L) that takes the receiver from the shuttle (D>),
The receiver is equipped with a conveyor or other conveyance means (CM) for conveying the picked up material to the next process.

The fifth lifter (L) is constructed by providing a fixed support (36> on the front side in the unloading direction on the support base (35), and providing an elevating cylinder (37) on the rear side to raise the elevating cylinder (37). , using the fixed column (36) as a fulcrum, the rear part is raised and tilted, and by this raising operation, the box-shaped work body (A) and the assembled part (B), which have already been joined, are lifted from the shuttle (D), and It is to be carried out to the carrying out means (M) using the fIJI slope.

The discharger It (M) is a roller conveyor.

The device of the present invention has the above configuration, and its operation will be explained next.

In the first stage (1), the first lifter (C) rises and holds the box-shaped workpiece body (A) and the assembly parts (B) on the pedestal (
4) Position and place it on top. And the first lifter (
C) descends, and the box-shaped workpiece body (A) and the assembled parts (B)
and transferred to the shuttle (D). After the shuttle (D) picks up the box-shaped workpiece body (A) and the assembled parts (B) from the first lifter (C), it moves to the second stage (n). The box-shaped workpiece body (A) and the assembled parts (B), which have been carried to the second stage (n) by the shuttle (D), are lifted up by the second lifter (E) and taken off. Subsequently, the pair of coupling heads (F) (F) approach each other, and the punch (10) moves toward the die (8) by the operation of the piston (12), thereby separating the box-shaped workpiece body (A) and the assembled parts. The two opposing sides of (B) are bonded at multiple locations at the same time.

After joining, the punch (10) is separated from the die (8), the joining heads (F) are separated from each other, and the second lifter (E) is lowered to remove the box-shaped workpiece body (A). and the assembled parts (B) are transferred to the shuttle (D). Shuttle (D
) moves the box-shaped workpiece body (A) and the assembled parts (B), which were taken from the second lifter (E), to the third stage (II [
). Box-shaped workpiece body (A) and assembled parts (B) transported to the third stage (m) by shuttle (D)
, the third lifter (G) rises and takes the catch. Subsequently, the rotation base (29) is rotated by 90 degrees using the rotation unit (H) to change the orientation of the box-shaped workpiece body (A) and the assembly part (B) by 90 degrees, and after the change, the third lifter (G) is lowered and the box-shaped work body (A) and the assembled parts (B) are transferred to the shuttle (D). The shuttle (D) transports the box-shaped workpiece body (A) and the assembled parts CB) received from the third lifter (G) to the fourth stage (■). The box-shaped workpiece body (A) and the assembled parts (B), which have been carried to the fourth stage (IV) by the shuttle (D), are lifted by the fourth lifter (J) and taken off. Subsequently, the pair of joining heads (K) (K) approach and perform a joining operation to connect the box-shaped workpiece body (A) and the assembly part (B) to the remaining opposing two parts.
Join edges at the same time.

After bonding, the pair of bonding heads (K) (K) are separated and the fourth
The lifter (J) descends and transfers the box-shaped workpiece body (A) and the assembled parts (B) to the shuttle (D). The shuttle (D) moves the box-shaped workpiece body (A) and assembly parts (B) received from the fourth lifter (J) to the fifth stage (V
). Box-shaped workpiece body (A) and assembled parts (B) transported to the 5th stage (V) by shuttle (D)
In this case, the fifth lifter (L) rises to remove the receiver, and the carrying means (M) carries it out to the next process.

In the above explanation, the operation at each stage for the box-shaped workpiece body (A) and the assembly parts (B) was explained, but the shuttle (
In D), the goods are transported from the previous stage to the next stage, and after being handed over, they are returned to the previous stage. Note that the drive device for the shuttle CD) is installed on the third stage (m).

By repeating the above operations, the box-shaped work body (
It is possible to assemble A) and assembly part CB) with high efficiency.

[Effect of idea]

According to the present invention, a box-shaped workpiece body made of a thin metal plate and an assembly part such as an end plate are first joined together on two opposing sides using a multiple tool, and then rotated 90 degrees to connect the remaining parts. Two opposing sides can be connected at once using multiple tools and then transported out.
The retraction stroke of the coupling head can be made small, allowing assembly to be carried out through assembly work and with high efficiency. In addition, the punch and die are connected and operated via a toggle link mechanism by a piston that swings in a fan-shaped space using air pressure as a power source, so even though compressible air is used, the toggle link mechanism It is possible to exert a sufficient bonding force by using this method, and since the power source is air pressure, it can be easily obtained in the factory. Further, the cylinder forming the fan-shaped space for housing the piston is thin and box-shaped, and can be connected in multiples in a compact manner, and the connection pitch between punches and dies can be shortened. Furthermore, it can be used for assembling box-shaped workpieces made of thin metal sheets for which spot welding is impossible or difficult, such as colored steel plates, Teflon-coated steel plates, pre-coated steel plates, vinyl-clad steel plates, Galhan-plated plates, aluminum plates, copper plates, vibration-damping steel plates, etc. Skilled techniques such as welding are not required, and it can be easily operated by an amateur, and it does not generate toxic gases and can be assembled in a clean environment.

[Brief explanation of drawings]

Fig. 1 is a schematic plan view of the device of the present invention, Fig. 2 is a schematic side view thereof, Fig. 3 is a plan view of the lifter used in the first and second stages, Fig. 4 is a side view thereof, Fig. 5 shows a side view of the coupling head, partially in section. FIG. 6 is a side view of the tip of the lifter used in the third stage, and FIG. 7 is a plan view thereof. (1) - 1st stage, (Il)... 2nd stage, (■) - 3rd stage, (IV) - 4th stage, (V)... - 5th stage, (A) -・Box-shaped work body, (B)--Assembly parts, (C)--First lifter (D)--Shuttle, (E)--Second lifter (F) (F)-- A pair of coupling heads, (G)
- Third lifter (H) - Swivel unit, (J) - Fourth lifter (K) (K)... A pair of coupling heads, (L) - Fifth lifter (M)...・Export means, (8) -Dice, (10) Punch, (11)-
... Sector-shaped space, (12) - ... Piston, (1
3)...-Toggle link mechanism, (14)...-Cylinder, (15)...-Slide unit. Figure 5 Evening 2 Figure 6 Figure 7 2

Claims (1)

[Claims] (1) A first stage equipped with a first lifter with a pedestal for positioning and setting the box-shaped work body and assembly parts such as end plates; A second stage is equipped with a pair of joining heads that approaches two opposing sides of the transferred workpieces and joins them at once using multiple tools, and then separates after joining, and a shuttle from a second lifter. a third stage equipped with a turning mechanism that rotates the workpiece carried in and transferred onto the third lifter by 90 degrees; a fourth stage equipped with a pair of supply heads that approaches the remaining two opposing sides and joins them at once using a multiple tool, and separates them after joining; from the fourth lifter to the fifth lifter via the shuttle; and a fifth stage equipped with a carrying-out means for carrying out the carried-out and transferred work to the next process, and the multiple tools of the second and fourth stages face the punch and the die at a predetermined joining position of the work. 1. An apparatus for assembling box-shaped workpieces, characterized in that the apparatus is configured to perform a coupling operation via a toggle link mechanism using pistons that are arranged and swing in a fan-shaped space using air as a power source.