JPH04200944A - Device for jointing box like products - Google Patents

Abstract

PURPOSE:To efficiently joint the special metal sheet by arranging the metal jointing devices on the base plate caulking machine, the top plate caulking machine A and the top plate caulking machine B which are arranged on the continuous assembling line. CONSTITUTION:On the metal jointing device 40, when the punch 48 pressurizes the die 43 with the ram 47, the die hole forming components 50, 50 are expanded and two pieces of metal sheets A, B to be jointed are deformed plastically in the die hole 49, two pieces of metal sheets A, B are deformed with swaging and jointed with caulking. Such metal jointing devices 40 are arranged at the base plate caulking machine, the top plate caulking machine A and the top plate caulking machine B which are arranged on the continuous assembling line by respectively deformed properly. The base plate caulking machine is arranged at the most upper stream of the assembling line, and joints with caulking the body case and the flange of the base plate. The top plate caulking machine A joints with caulking the flange of body case and the top plate at their opening parts. The top plate caulking machine B joints with caulking the flange of body case and the top plate at its deep side as same as the case of the top plate caulking machine A.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a box-shaped product joining device that crimps and joins a main body case made of special plate material, a base plate, and a top plate using a die and a punch. Regarding.

[Prior Art] As an example of a structure in which a plurality of metal plates are joined together, a box-shaped product before being assembled will be described with reference to FIG. 11. A box-shaped product has a main body case (1) made of a U-shaped metal plate whose upper and lower ends are closed by a base plate (2) and a top plate (3) made of metal plates (see Fig. 11). (Illustrated upside down).

Each edge of the main body case (1) is bent to form a flange (Ila
) is formed. The base plate (2) has a flange (2
a) with a shallow box shape, with the concave side facing outward,
Attach the rear flange (2a) to the lower end of the main case (1) (
In FIG. 11, it is connected to the upper end). The top plate (3) has an abbreviated shape, and is located at the -1 end (the first
In Figure 1, it is connected to the inside of the flange (1a) at the lower end (lower end). Then, a box-shaped product as shown in FIG. 12 is completed.

[Problems to be Solved by the Invention] In order to connect a plurality of metal plates, - In boat fishing, a joining tool such as spot welding or rivet I is used.

However, when the metal plate material is a special plate material such as a vibration-damping steel plate (a composite plate with plastic etc. interposed between two steel plates), an aluminum plate material, or a metal plate material with the copper side painted, spot welding may not be applicable, or Even if it could be applied, pre-treatment and post-treatment were required, and the work was troublesome. For example, spot welding cannot be applied to split steel plates because they involve melting plastic. In addition, spot welding cannot be applied to aluminum plates and copper plates because of their low electrical resistance. Furthermore, applying spot welding to painted metal plates requires pre-treatment to remove the paint and post-treatment to repaint, which impairs work efficiency and increases costs. On the other hand, methods using fasteners such as Rivet I require drilling holes in advance, and at the same time
- Since a separate supply device for the coupler is required, the work is complicated.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a box-shaped product joining device that can efficiently join two special plate materials.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention provides plastic deformation of the overlapping part of the workpiece in which the lower end and the upper end of the U-shaped main body case are closed by the base plate and the top plate. The die and punch to be caulked are arranged in the yoke part, and the metal bonding device that operates the punch by a power actuator operated by fluid pressure is connected to the base plate caulking machine, the top plate caulking machine A, and the top plate caulking machine A and the top plate caulking machine, which are arranged in succession on the assembly line. Plate crimping machine B is equipped with a plurality of bonding heads arranged so as to be movable in the X direction, which is the traveling direction of the workpiece, in which the metal bonding device is erected, and the bonding head is connected to the workpiece. The top plate caulking machine A is equipped with a movable table that moves in the X direction perpendicular to the horizontal direction and the traveling direction of the workpiece. An X-direction moving table having two coupling devices installed vertically in the X-direction and independently moving in the X-direction; and an X-direction moving table that independently moves the two X-direction moving tables in the X-direction. The top plate caulking machine J3 is equipped with a metal joining device in which the recessed part of the yoke part is formed deeply so as to caulk the back side of the workpiece.
Two units are installed vertically in the X direction and move independently in the X direction.
The apparatus is equipped with a direction moving table and an X-direction moving table that independently moves the two X-direction moving tables in the X direction.

[Operation] The main body case, the base plate, and the top plate are plastically deformed and caulked together by a die and a punch of a metal bonding device. This caulking is performed by connecting metal bonding devices to a base plate caulking machine, a top plate caulking machine A, and a top plate caulking machine B arranged on an assembly line.
It can be carried out continuously.

[Embodiment] An embodiment of the present invention will be described with reference to FIGS. 1 to 10. Here, two plates (A) and (B) such as the flange (2a) of the main body case (1) and the base plate (2), or the flange (1a) of the main body case (1) and the top plate (3)
The prototype of the box-shaped product that is caulked together is called the workpiece (W). Further, the traveling direction of the workpiece (W) is referred to as the X direction, the horizontal direction perpendicular to the X direction is referred to as the X direction, and the vertical direction perpendicular to the X direction is referred to as the X direction.

As shown in FIG.
and top plate crimping machine A (20) and top plate crimping machine B (30)
and are placed consecutively on the assembly line.

Each crimping machine (10) (20) (30) is the second
A metal bonding device (40) is provided as shown in the figure.

The metal bonding device (40) is composed of a C-shaped yoke portion (41), a power actuator (42) placed at one end of the yoke portion (41), and a die (43) placed at the other end. Ru. The power actuator (42) includes a swinging screw (45) that swings back and forth within the fan-shaped space (44), a toggle link (46) that is pivotally connected to the middle part of the swinging piston (45), - A ram (47) that is pivotally attached to the tip of the glue link (46) and reciprocates in the direction of the die (43).
It consists of A punch (48) that comes into contact with and separates from the die (43) is fixed to the tip of the ram (47). The tip of the punch (48) is cylindrical or prismatic, and the tip of the punch (48) is cylindrical or prismatic.
) is also correspondingly formed with a circular or square die hole (49). The die hole (49) is constituted by die hole forming members (50) (50) which are divided into two parts that can be opened and closed. The inner diameter of the die hole (49) is slightly larger than the outer diameter of the punch (48). Punch (48) is Ram (4)
7), when the die (43) is pressed, the die hole forming portions 4.4' (50) (50) expand, and the two plates (A) and (B) to be joined are inserted into the die hole (49). plastically deformed at 2
As shown in FIG. 3, the plates (A) and (B) are upset and deformed and joined together by caulking.

Such a metal bonding device (40) is used in the base plate crimping machine (10) and the top plate crimping machine A, which are arranged in a continuous assembly line.
(20) and the top board crimping machine B (30), each being appropriately modified and installed.

The main plate crimping machine (10) is placed at the very end of the assembly line, and is used to swage the flange (2a) of the main body case (1) and the main plate (2).
), and will be explained with reference to FIGS. 4 and 5.

The base plate caulking machine (10) has a Y-direction movable table (12) arranged on the upper surface of a fixed table (11) installed on the floor.

Two Y-direction rails (13) (13) are laid near both ends (=J) of the two sides of the fixed table (11). (13) (13
) and the sliding body (14) that fits with the (14) are fixed.

Furthermore, a slide cylinder (15) is mounted on the fixed base (11).
The cylinder body (15a) of is fixed in the Y direction, and its piston rod (15b) is fixed to a moving table (12). Therefore, as the piston rod (15b) expands and contracts, the movable table (12) moves forward and backward in the Y direction.

Three coupling heads (16) (16) (16) in the Y direction are arranged on the top surface of the movable table (12). A metal bonding device (40) is erected on the − side of the bonding head (16) so that the ram (47) moves in the X direction. The most upstream coupling head (16) is fixed to the movable stage (12), and the two downstream coupling heads (16) (16) engage movably in the X direction. That is, two X-direction rails (17) (17) are laid near both ends of the top surface of the moving table (12), and two coupling heads (16) (16) are installed on the downstream side.
) The sliding bodies (18) (18) that fit with the rails (17) (17) are fixed to the lower surface of the rails (17) (17). Then, two pitch adjustment cylinders (19) are installed on the moving table (12).
The cylinder bodies (19a) (19a) of (19) are fixed, and the piston rods (19b) (19b) are connected to the two coupling heads (16) (19b) on the downstream side, respectively.
6). The piston rod (19b) (
19b), three coupling heads (1
6) The interval between (1, 6) and (16) is adjusted. By adjusting the spacing of the coupling spatula I" (16) (16) (16), the coupling head (16) (16)
(16) Metallic bonding device (40) erected (40
) (40) can be made to correspond to the size of the workpiece (W).

The base plate caulking machine (10) is configured as described above. Next, a method of caulking the main body case (1), which is a workpiece (W), and the flange (2a) of the base plate (2) will be described.

First, remove the piston rod (1) of the slide cylinder (15).
, 5a,) are retracted and the metal bonding device (40) is retracted.
Adjust the spacing between the machine's metal coupling devices (40) (40) (40). That is, the pitch adjustment cylinder (19
) (19) by the downstream coupling head (16)
(16) is moved.

Then, the flange (2) of the main body case (1) and the main plate (2)
a) and the workpiece (W) temporarily fixed at its opening (C).
) to the caulking position, then slide the slide cylinder (1
5) Extend the screw I-rod (15b) and attach it to the moving table (
12) Advance. Then, the die (43) and punch (48) press the flange (
2a) are sandwiched with a space between them.

Next, the power actuator (42) operates the ram (
46), the die (43) and punch (48)
As a result, the main body case (1) and the flange (2a) of the base plate (2) are caulked together at three locations.

Thereafter, the ram (46) is moved backward by the power actuator (42), and the die (43) and punch (48) are separated from the flange (2a) of the main body case (1) and the base plate (2), which are crimped together. remove. Finally, the piston rod (15a) of the slide cylinder (15) is retracted, and the metal bonding device (40) is retreated from the workpiece (W). The workpiece (W) advances in the X direction and reaches the top board crimping machine A on the downstream side.
Transfer to (20).

The top plate caulking machine A (20) is used to caulk and connect the flange (1a) of the main body case (1) and the top plate (3) on the opening side thereof, as shown in Figs. 6 to 8. I will explain.

The top plate caulking machine A (20) has a fixing base (23) placed on the underside of a base (22) placed on the top of four pillars (21) set up on the floor. A metal bonding device (40) is movably disposed below.

At both ends of the lower surface of the fixed base (23) (near
Lay down. Then, from the lower side of the fixed table (23) and the downstream side, there is an adjustment table (25) and a first and second X-direction movable table.
(26) Place (27). On two surfaces of the adjustment table (25) and the first and second X-direction moving tables (26) and (27), sliding bodies (28) (28) that engage with the X-direction rails (24) (24) are provided. is fixed so that the adjustment table (25) and the first and second X-direction moving tables (26, 27) can move in the X direction. To move the adjustment table (25),
This is done using the adjustment cylinder (29).

The cylinder body (29a) of the adjustment cylinder (29) is
It is attached to the fixed base (23), and the piston rod (29b) is attached to the adjustment base (z5). A positioning pin (31) is fixed to the negative side of the adjustment table (25), and a substantially 'F-shaped stopper (32) is disposed opposite to this positioning pin (31). By forming an opening (23a) in the fixing base (23), the stopper (32) can be switched between two positions: under the fixing base (23) and inside the opening (23a). The position of the stopper (32) is changed by means of a cylinder for the waist and collar (33) attached to the negative side of the fixed base (23).

That is, the upper end of the stopper (32) is pivotally connected to the piston rod (33a) of the stopper cylinder (33), and the middle part of the stopper (32) is connected to the opening (23) of the fixing base (23).
Pivotally attached to part a). Then, when the piston rod (33a) of the collar cylinder (33) is extended, the stopper (32) is located on the lower surface side of the fixed base (23), and when the piston rod (33a) is retracted, , a stopper (32) is located within the opening (23a) of the fixing base (23). When the stopper (32) is located below the fixed base (23), the positioning pin (31) comes into contact with the stopper (32) by only a short movement of the adjustment base (25). The stopper (32) is connected to the opening (23) of the fixing base (23).
a), the positioning pin (31) does not come into contact with the stopper (32), so the adjustment table (25) moves a long distance. In this way, the moving position of the adjustment table (25) is regulated, and the interval between the pair of metal bonding devices (40) is made to correspond to the size of the workpiece (W). The adjustment table (25) is connected to the first X-direction moving table (26) by a first X-direction cylinder (34). That is, the cylinder body (34a) of the first X-direction cylinder (34)
5), the piston rod (34b) is the first
Attach it to the X-direction moving table (26). Therefore, by expanding and contracting this piston rod (34b), the first X-direction moving table (26) is further moved from the position where the adjustment table (25) has been moved. Second X-direction moving table (27)
is moved by the second X-direction cylinder (35). The cylinder body (35) of the second X-direction cylinder (35)
In a), one piston rod (
35b) is attached to the second X-direction moving table (27).

Below the first and second X-direction moving tables (26) (27), there are first and second Y-direction moving tables (36), respectively.
Place (37). The first and second X-direction moving tables (2
6) Near both ends of the bottom surface of (27), there are
Two X-direction rails (38) (38) are laid, and the upper surfaces of the first and second Y-direction moving platforms (36) (37) are engaged with the Y-direction rails (38) (38). sliding body (
39) Fix (39). The first and second Y-direction moving tables (36) (37) are connected to the Y-direction cylinder (51).
) (51). Y direction cylinder (
51) Cylinder body (51a) (51a) (51)
) are respectively attached to the first X-direction moving table (26) and the second X-direction moving table (27), and the piston rod (51
b) (51b) is attached to the first Y-direction moving table (36) and the second Y-direction moving table (37).

Metal bonding devices (40) (40) are vertically installed on the lower surfaces of the first and second Y-direction movable tables (36) (37), respectively. The metal bonding device (40) is installed so that the ram (47) moves in the Y direction, as shown in FIG. At the tip of the ram (47), insert two punches (48) in the Y direction.
Two dies (43) can also be taken out in parallel with the two punches (48). Parallel to the punch (48),
Two guide posts l□ (52) are arranged in the recessed part (41a) of the yoke part (41).

The guide boss (52) is attached to the frame (55) (5) attached to the punch head (53) and die base (54).
5) is held by. Such a metal bonding device (
40) A platform (56) is arranged below (40) for raising and lowering the workpiece (W).

The top board crimping machine Δ(20) is configured as follows,
Next, the flange (1a) of the case body (1) and the top plate (3)
) on the opening side will be explained.

In advance, two metal bonding devices (40) are connected by adjusting cylinders (29) according to the size of the workpiece (W).
Move the interval (40) to the caulking position.

That is, when the workpiece (W) is large, the screw rod (33a) of the stopper cylinder (33) is extended to position the stopper (32) on the lower surface side of the fixing base (23). Then, the piston rod of the adjustment cylinder (29) (
29b) and move the adjustment table (25). The adjustment table (25) has a positioning pin (31) that
2) Move until it touches. When the adjustment table (25) moves, the first X-direction moving table (26) is connected to the adjustment table (25) by the first X-direction cylinder (34).
also move. Therefore, the pair of metal bonding devices (40) (
40) also moves in accordance with the size of the workpiece (W). The stopper (32) is controlled by the stopper cylinder (33).
When stored in the opening 1'' part (23a) of the fixed base (23),
Since the positioning pin (31) does not come into contact with the stopper (32), the adjustment table (25) is further moved to the second X-direction moving table (2
7) Move forward. Therefore, two metal bonding devices (4
0) (40) can be further narrowed to accommodate caulking of small workpieces (W).

In this way, two metal bonding devices (40) (40)
After adjusting the interval between the first and second X-direction cylinders (3
4) Piston rod (34b) (35b) of (35)
), the distance between the first and second moving tables (26) (27) is narrowed as shown by the two-dot chain line in Fig. 6, and the pair of dies (43) and punches (48) are attached to the case body. (1) so that it can advance into the inside of the case body (1) from between the flanges (1a). And top plate crimping machine A (20)
The workpiece (W) transferred to the caulking position is placed on the receiver stand (5).
6) - to raise. A pair of dies (43) and punches (47) are connected to the case body (1) as shown in FIG.
) and the top plate (3) are sandwiched with a gap between them, the first and second X-direction cylinders (3
4) Degenerate (35) and move the first and second movable platforms (2
6) Increase the interval in (27). Then, as shown by the solid line in Fig. 6, the first and second moving tables (26) (2
7) The distance between the lower metal bonding devices (40) (40) is widened, and the pair of dies (43) and punches (48) are positioned at the crimping positions of the flange (1a) of the main body case (1) and the top plate (3). Displaced up to. Then, the piston rods l<' (51b
) (51b), Gui (43)
abut against the back side of the top plate (3). In this state, ram (
47), the punch (48) and die (48)
As a result, the flange (1a) of the main body case (1) and the top plate (3) are caulked together at the opening thereof. After the flange (1a) of the main body case (1) and the top plate (3) are caulked together, the piston rod (43) of the Y-direction cylinder (51) (51) is separated from the back surface of the top plate (3). . Then, the piston rods (34b) (34b) of the first and second X-direction cylinders (34) (35) are extended, and again,
The distance between the first and second movable tables (26) (27) is narrowed. Then, a pair of metal bonding devices (40) (40)
A pair of dies (43) and punches (48)
The flange (la) (1a) of the main body case (1)
) is narrower than the interval. Then, the receiver lowers the table (56) and attaches the workpiece (W) to the metal bonding device (40) (40).
), and the workpiece (W) is transferred to the next top plate crimping machine B (
30).

The top board crimping machine B (30) is for crimping and joining the flange (1a) of the main body case (1) and the top plate (3) on the back side, and is shown and explained in Figs. 9 and 10. . however,
Since the basic configuration is the same as the top plate crimping machine A (20), only the parts of the top plate crimping machine B (30) that are different from the top plate crimping machine A (20) will be explained.

The top board caulking machine B (30) is equipped with a metal joining device (40
) The recessed part (41a) of the yoke part (41) of the top plate (3
). In addition, the main body case (1)
The die (43) of the metal joining device (40) and the punch ( 48) are arranged two by two to be perpendicular to each other, as shown in FIG.

Such a metal bonding device (40) is a top plate bonding machine A.
The first and second Y-direction movable tables (36) have the same configuration as (20).
) (37).

Then, the workpiece (W) transferred to the crimping position of the top plate crimping machine B (30) is attached to the flange (1a) of the main body case (1) in the same manner as in the case of the top plate crimping machine A (20).
and the top plate (3) are caulked together on the back side thereof. At this time, by forming the recessed part (41a) of the yoke part (41) of the metal bonding device (40) deeply, a pair of gui (
43) and the punch (48) can advance to the back side of the main body case (1) and the top plate (3), as shown in FIG. Then, connect the four points on the back side together by caulking.

The other operations (30) of the top board crimping machine B are the same as those of the top board crimping machine A (20), so the explanation thereof will be omitted.

The following describes one embodiment of the present invention, and the present invention is not limited to this embodiment, and the design can be changed within the gist of the present invention.

[Effects of the Invention] According to the present invention, it is possible to efficiently join two special plates that are unsuitable for welding, so it is possible to speed up and automate the joining work of box-shaped products. Become.

[Brief explanation of the drawing]

FIG. 1 is a schematic overall view of a box-shaped product joining device according to the present invention, FIG. 2 is a partially sectional side view of a metal joining device, and FIG. 3 is a sectional perspective view of two plates joined by caulking. Figure 4 is a side view of the base plate crimping machine, Figure 5 is a front view of the base plate crimping machine,
Figure 6 is a front view of the top plate crimping machine, Figure 7 is a side view of the top plate crimping machine A, Figure 8 is a bottom view of a portion of the top plate crimping machine, and Figure 9 is a top plate crimping machine B. FIG. 10 is a front view of a portion of the top board crimping machine B. FIG. 11 is a perspective view of the assembly surface of the box-shaped product, and FIG. 12 is a perspective view of the box-shaped product. (1)...Body case, (2)...Main plate, (3
)...Top plate, (W)...Work, (10
)...Main plate crimping machine, (12)...Moving table, (16
)...Joining head, (20)...Top plate caulking machine A1 (26)...First X-direction moving table, (27)...Second X-direction moving table, (30)... ...Top plate caulking machine B1 (36)...First Y-direction moving table, (37)...Second Y-direction moving table, (40)...Metal bonding device, (41)... Yoke part, (41a)... recessed part,
(43)...Gui, (45)...Swinging piston (48)...Punch, Fig. 11 Fig. 12

Claims (1)

[Claims] (1) A die and a punch are arranged in the yoke part, and the die and punch are placed in the yoke part to caulk and connect the overlapping part of the workpiece, where the lower end and the upper end of the U-shaped main body case are closed by the base plate and the top plate, by plastic deformation. A metal bonding device operated by a pressure-actuated power actuator is provided in a base plate caulking machine, a top plate caulking machine A, and a top plate caulking machine B, which are successively arranged on an assembly line, and the base plate caulking machine is equipped with a metal bonding device operated by a pressure-actuated power actuator. A plurality of bonding heads on which devices are erected and arranged movably in the X direction, which is the direction in which the workpieces travel, and a moving table that moves the bonding heads in the Y direction, which is perpendicular to the horizontal direction of the workpieces. The above-mentioned top plate crimping machine A has two metal joining devices vertically installed in the X direction, each having a shallow recessed part in the yoke part, so as to rivet the opening sides of the workpieces, and The top board crimping machine B is equipped with a Y-direction moving table that moves in the Y direction and an X-direction moving table that moves the two Y-direction moving tables independently in the X direction. Two metal joining devices each having a deep recessed part in the yoke part are installed vertically in the X direction so as to connect by caulking, and a Y-direction movable table that moves independently in the Y direction; A device for joining box-shaped products, characterized by comprising an X-direction moving table that independently moves the moving table in the X-direction.