JPH09239626A - Hollow structure body manufacturing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manufacture a strong hollow structure body by providing caulking sections where caulking pieces and side plate materials are caulked to caulking piece retaining grooves. SOLUTION: A hollow structure body H1 is assembled by approaching a pair of horizontally arranged upper and lower members 7A and 7B to a pair of vertically arranged side plate materials 6A and 7B and fitting the caulking sections provided at both ends of the upper and lower members 7A and 7B to both ends of the upper and lower side plate materials 6A and 6B so as to cover them. The upper and lower members 7A and 7B are pressed by a pressing dies 20A and 20B, and then, upper and lower cylinders 21A and 21B are activated to advance punch holders 22A and 22B, and their respective caulking sections 8 are pressed from the outsides by their caulking punches 23 to caulk the side plates 6A and 6B, which are pressedly fitted, to the side of a caulking retaining piece.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for automatically assembling a hollow structure, and more particularly to an apparatus for assembling two pairs of automatically supplied plate-like members into a hollow structure having a rectangular cross section and integrally joining them by caulking. .

[0002]

2. Description of the Related Art As shown in U.S. Pat. No. 4,713,924, a pair of side plate members and a pair of extruded frame members, which are supplied to an apparatus, are joined together by a combination of end portions to form an integral rectangular cross section. A manufacturing apparatus for forming the hollow structural material is known.

A method for joining the extruded shape member and the side surface plate member in this hollow structure material is, as shown in a part of FIG. 19 (a), to provide ridge-shaped shoulder portions 91 at both ends of the shape member 90 and to move them upward. A crimping piece 93 having a tip end portion matching the shape of the shoulder portion 91 is provided in a form branched from the outer wall 92 projecting from the outer wall 92, and the plate member 94 has the end portion formed on the step portion 94a to form the shoulder portion 91. The plate member 94 is attached to the outer wall 92 by the pressure-bonding piece 93 by pressing the pressure-bonding piece 93 from the outside with the pressure-bonding roller 95 as shown in (b).
20 to be joined by crimping, or FIG.
As shown in (a), the external wall 9 protruding upward from the profile 96
7, a caulking piece 99 is formed in place of the crimping piece together with the receiving groove 98, and a step portion 100 formed at the end of the plate material 100.
After attaching a to the shoulder 101 of the profile 96, the caulking piece 9
9 is pressed by a pressing die (not shown) to abut against the plate material 100, and as shown in (b), a backup material 102 is applied to the back of the outer wall 97 and attached to the outer periphery of the rivet wheel 103. A method of pressing with a rivet 103a and caulking is used.

[0004]

However, if a joining method is adopted in which the shapes of the extruded shape member and the side plate member are combined in a suspension manner as described above, it is troublesome to form the respective joints of the shape member and the plate member. In addition to the above, the assembling of the shape member and the plate material becomes special, and the assembling equipment including such a member processing step becomes considerably complicated. Further, the above-mentioned joining is performed outside the hollow space formed by the shape member and the plate member, and it is necessary to take measures such as forming a crimping portion between the shape member and the plate member or a caulking portion on the protruding outer wall. Therefore, there is a problem that the shape of the shape member becomes special.

Therefore, the present invention is a relatively simple equipment,
The constituent members consisting of upper and lower members such as shaped members and side plate members such as rolled plate materials can be firmly integrated, and a relatively simple shape is sufficient for the upper and lower members, and caulking can be performed from both inside and outside. The purpose of the present invention is to provide a manufacturing facility for a hollow structure that can be manufactured.

[0006]

In order to achieve the above-mentioned object, the present invention provides a caulking portion, which comprises a caulking piece and a caulking receiving piece having a receiving groove facing the side of the caulking piece, at both ends in the width direction. By a pair of facing upper and lower members, a pair of side plate members whose end portions can be inserted into the gap between the crimping piece and the crimping receiving piece of the crimping portion of the upper and lower members, and by crimping in the crimping portion An apparatus for manufacturing a hollow structure having a rectangular cross-section by joining, wherein a plate material feeding mechanism supplies a pair of the side surface plate materials at a predetermined facing interval, and a pair of the upper and lower parts through a guide member by a member feeding mechanism. A member supply unit that supplies the member while narrowing the width sequentially from a facing interval wider than the width of the side plate, and a member supply unit that supplies the member in the width direction end of the side plate supplied from the plate supply unit. The hollow structure is provided with an assembling part that fits the caulking parts at both ends of the upper and lower members to assemble into a hollow structure having a rectangular cross section, and caulking blades and caulking receiving members facing each other with the caulking part interposed therebetween. A hollow structure characterized by comprising a caulking portion for caulking the caulking piece and the side plate member into a receiving groove of the caulking receiving piece by pressing the caulking piece side of the caulking portion with the caulking blade. Supply manufacturing equipment.

Further, the plate material supply section is provided with a corrugating roll, and a hollow structure manufacturing apparatus for supplying the plate material to the assembling section as a corrugated plate, and the plate material supply section is further provided with the plate material. An apparatus for manufacturing a hollow structure is proposed, in which the plate material having a widthwise-direction cutting mechanism and adjusted in the width direction is supplied to the assembling unit.

Further, the caulking portion is a hollow structure manufacturing apparatus provided with a fluid pressure cylinder for operating the caulking blade, and further, the caulking portion is a caulking blade arranged on an outer periphery of a rotary base. An apparatus for manufacturing a hollow structure, wherein the caulking section has the caulking blade arranged in an intermediate space of the hollow structure and the caulking receiving member arranged outside the hollow space. Further, the caulking portion is a hollow structure manufacturing apparatus in which a caulking receiving member is arranged in the hollow space of the hollow structure and a caulking blade is arranged outside the hollow space, and the caulking blade is a device. An apparatus for manufacturing a hollow structure disposed in the hollow space by holding a beam fixed on a mount in a cantilever manner, and further, the caulking receiving member is a cantilever on the equipment mount. By holding a fixed beam to propose an apparatus for manufacturing a hollow structural member disposed in the hollow space.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The side plate material is fed by a feed mechanism and a guide member at a plate material supply portion so as to be vertically opposed to a manufacturing apparatus at a predetermined facing distance, and the predetermined distance, that is, a hollow structure to be manufactured. It is supplied to the assembly unit while maintaining a space that defines the width of the body (that is, the space between the side plate members).
In the member supply section, the upper and lower members having the crimping portions, which are composed of the crimping pieces and the crimping receiving pieces formed with a gap at both ends in the width direction, are vertically spaced from each other by the feeding mechanism and guide members such as guide rolls. It is supplied to the manufacturing equipment while narrowing the gap. That is, the upper and lower members are supplied so as to gradually narrow the mutual spacing from the spacing equal to or larger than the width dimension of the side surface plate toward the assembly portion. Then, in the assembly portion, the upper and lower members are in a parallel state while fitting the gap of the caulking portion to the widthwise end portions of the side surface members that move in parallel vertically at a constant interval, and a pair of upper and lower side surface plate members are provided. A hollow structure having a rectangular cross section is formed by a pair of left and right upper and lower members.
Then, the hollow structure is conveyed into the caulking portion by the feeding mechanism.

In the caulking portion, the hollow structure is temporarily stopped at a predetermined position in accordance with the intermittent drive of the feeding mechanism of the plate material feeding portion and the feeding mechanism of the member feeding portion, and in this stopped state, the caulking receiving material is moved up and down. Make contact with the back of the caulking receiving piece of the caulking part to make a backup material,
The side plate member can be fixed to the upper and lower members by caulking by pressing the caulking blade against one side of the caulking and pressing it by driving a fluid pressure cylinder or the like. By performing this caulking operation while repeating the intermittent movement of the hollow structure, caulking is performed in a continuous manner in the longitudinal direction to obtain an integrated long hollow structure.

By disposing the corrugating roll in the course of supplying the plate material of the plate material supply section, the side surface plate material can be supplied to the assembly section as a corrugated plate. It is possible to supply a plate material having a predetermined width dimension to the assembling section by providing a plate material both side end cutting mechanism during the plate material supply of the plate material supply section and passing the plate material as it is rolled and formed.

By driving the caulking blade in the caulking portion with a fluid pressure cylinder, reliable caulking can be efficiently performed with arbitrary strength. By performing the caulking process in the caulking section with a rotary blade equipped with a caulking blade on the rotary base, the caulking process can be performed automatically as the member moves, and this rotary blade can also be used as a feed mechanism. it can.

In the caulking portion, a caulking mechanism having a caulking blade is held by a beam fixed in a cantilever manner on a device stand, so that the caulking blade has an upper member and a lower member in a hollow space constituted by an upper member and a lower member. The caulking process can be performed from the inside of the hollow space by disposing the caulking portion on one side of the caulking portion and the caulking receiving material on the one side of the caulking receiving portion of the upper and lower members outside the hollow space. In the caulking section, the caulking receiving material is held on a beam that is fixed in a cantilevered manner on the equipment stand, so that the caulking receiving material is attached to one side of the caulking portion of the caulking portion in the hollow space composed of the upper and lower members and the side plate material. On the other hand, by arranging a caulking mechanism having a caulking blade on one side of the upper and lower members outside the hollow space, the caulking process can be performed from the outside of the hollow space.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The hollow structure manufacturing apparatus of the present invention will be described below with reference to the drawings of the embodiments. The hollow structure manufacturing apparatus A according to the first embodiment, as shown in the vertical cross-sectional view of FIG. 1 and the partially cutaway plan view of FIG. As shown in FIG. 3, a pair of side surface plate members 6A, 6B made of aluminum alloy rolled plate or the like formed by corrugating in the longitudinal direction and caulking parts at both ends in the width direction are provided with the assembling part 4 and the caulking part 5. A pair of upper member 7A and lower member 7B made of extruded aluminum alloy etc. in which 8 is formed are integrally combined in each of the above-mentioned caulking portions 8, and the combined position is fixed by caulking from the outside direction and lengthened. This is an apparatus for producing a square-shaped hollow structure H ₁ . That is, the caulking portion 8 is formed of a thick caulking receiving piece 8a having a receiving groove 9 and a thin caulking piece 8b facing the caulking receiving piece 8a. The caulking process is performed as shown in FIG. The caulking piece 8 is formed by inserting the end portions of the side plate members 6A and 6B into the gap between the piece 8a and the caulking piece 8b.
The side plate members 6A and 6B are fixed to the receiving groove 9 through the caulking piece 8b by being pressed by the caulking blade from the side b to be integrally fixed.

The plate material supply section 2 is, as shown in FIGS. 1 and 2,
Frames 10A and 10B erected on both sides of the base frame 1
Winding roll 1 rotatably supported by a pair of upper and lower rotatably in the central portion between
1A, 11B and the small-diameter corrugated rolls 12A, 12B arranged close to the opposite sides of the winding rolls 11A, 11B, and the large-diameter arranged in front (on the left side in FIG. 1) close to the small-diameter corrugated rolls 12A, 12B, respectively. Corrugated rolls 13A, 13B
The small diameter wave type rolls 12A and 12B on the rear side can be intermittently driven to rotate by a stepping motor (not shown).

That is, flat side plate members 6B and 6A made of a long aluminum alloy rolled plate or the like wound around the upper and lower winding rolls 11A and 11B, respectively (in this device,
The side plate 6B is supplied to the upper side and 6A is supplied to the lower side), and by driving the small-diameter corrugated rolls 12A and 12B, as shown in the partial enlarged side view of FIG. The plate materials 6A and 6B are unwound and passed through the small-diameter corrugated roll 12A and the large-diameter corrugated roll 13A, and between the small-diameter corrugated roll 12B and the large-diameter corrugated roll 13B, which are adjacent to each other on the upper and lower sides, respectively. After 6A and 6B are formed into a corrugated plate, they can be fed forward in the horizontal direction.

As shown in the plan view of FIG. 2, the member supplying section 3 has a large number of guide rollers 14A and 14B arranged upright on the base frame 1 and is made of aluminum alloy extruded shape. The members 7A and 7B are supplied from the left and right sides according to the guide rollers 14A and 14B. That is, the feed rolls 15A and 15B (FIG. 1) provided with a stepping motor are arranged at the front part of the base mount 1, the feed rollers 15A and 15B are driven, and the upper and lower members 7A and 7B are driven from a supply source (not shown) from the base mount. It is made to be supplied in a pair of right and left from both side directions of 1 and gradually moved while narrowing the mutual interval so as to be in a parallel state.

In the assembly section 4, a pair of upper and lower side surface plate members 6A and 6B are conveyed in a horizontal and parallel state via a pair of upper and lower large diameter corrugated rolls 13A and 13B.
As described above, a pair of left and right upper and lower members 7A, which move on the base pedestal 1 from outside in the left and right order so as to narrow the mutual interval,
It is possible to assemble the hollow structure H ₁ by bringing 7B closer to each other and fitting the respective crimped portions 8 at both end portions so as to cover the end portions of the upper and lower side surface plate members 6A and 6B. is there. The assembled hollow structure H ₁ has a pair of upper and lower feed rolls 15 that are intermittently operated.
A and 15B further feed into the caulking portion 5.

In the caulking portion 5, as shown in an enlarged view in FIGS. 6 and 7, a frame-like frame 16 having a caulking mechanism is provided on the base pedestal 1, and a tip portion is provided in the frame-like frame 16. The support boom 17 formed on the crimping receiving portion 17a is held in the inserted state. That is, as shown in FIGS. 1 and 2, a support frame 18 is provided at the rear base end of the base pedestal 1, and a support beam 17 having a rectangular cross section is supported by the support frame 18 in a cantilever system. 17 is a pair of upper and lower large-diameter wave type rolls 13A,
The large-diameter corrugated rolls 13A and 13B are inserted in a state of being close to each other and extended to the front frame-shaped frame 16, and the front end is formed into a caulking receiving portion 17a provided with a caulking receiving member made of a thick plate. There is.

Hydraulic cylinders 19A and 19B are attached to the left and right of the frame-like frame 16, and the flat rod surfaces of the left and right upper and lower members 7A and 7B are pressed against the piston rods of the left and right hydraulic cylinders 19A and 19B from both sides. The pressing dies 20A and 20B are attached to the upper and lower hydraulic cylinders 21.
A and 21B piston rods have punch holders 22A,
22B is attached. This punch holder 22A, 2
2B has punches 23 for crimping as crimping blades on both ends thereof.
The hollow structure H ₁ in the assembled state sent to the caulking portion 5 is moved as it is into the frame-shaped frame 16 and stopped at a predetermined position, and the pressing dies 20A, 2
0B presses the upper and lower members 7A, 7B, then operates the upper and lower hydraulic cylinders 21A, 21B to advance the punch holders 22A, 22B, and presses the respective caulking portions 8 from the outside with the respective caulking punches 23. The side plate members 6A and 6B fitted together with the caulking piece 8b can be caulked on the side of the caulking receiving piece 8a.

This caulking is performed by the upper and lower members 7A, 7
B and the side surface plate members 6A, 6B according to the feed of the feed rolls 15A, 15B and the small diameter corrugated rolls 12A, 12B by the respective stepping motors.
By pressing the upper and lower members 7A and 7B by 0A and 20B and crimping by operating the punch 23 for caulking intermittently, a long hollow structure H ₁ integrated by a series of caulking from the outside is formed. Is what you can get.

Hollow structure manufacturing apparatus B shown in FIGS. 8 and 9.
Is provided with a plate material supply section 26, a member supply section 27, an assembly section 28 and a caulking section 29 arranged on the base pedestal 25. Unlike the case of the hollow structure manufacturing device A, the As shown in FIG. 11, the hollow structure H ₂ has a pair of left and right side plate members 30A and 30B and a pair of upper and lower side plate members, as shown in FIG. The upper member 31A and the lower member 31B are combined, and the upper and lower members 31A, 3
1B is formed with crimped portions 32 on opposite sides of both widthwise end portions,
The outer side is a thick caulking piece 32a having a receiving groove 33, and the inner side is a thin caulking piece 32b. As shown in FIG.
The side plate members 30A and 30B fitted together with b are caulked into the receiving groove 33 on the side of the caulking receiving piece 32a so that they can be integrated.

As shown in FIGS. 8, 9 and 10, the plate material supply section 26 includes the frame 3 attached to both sides of the base frame 25.
The side plate members 30A and 30B are provided in the central portion between 4A and 34B.
A pair of upper and lower winding rolls 35A, 35B for rotatably setting are rotatably supported, and guide rolls 36A, 36B driven by a stepping motor (not shown) are arranged in front of the winding rolls 35A, 35B toward the opposite side. The side plate members 30A and 30B wound by the rolls are wound by the respective winding rolls 35B and 35A (the side plate member 30A is on the lower side,
(0B is supplied as the upper side) so that the side plate members 30A and 30B can be supplied in an unwinding shape.

As shown in FIG. 9, the member supply section 27 has a large number of guide rollers 37A, 3A on the base frame 25.
7B, plate-shaped upper and lower members 31A, 31B supplied from a supply source (not shown)
By 7B, it is configured to move forward from the left and right sides toward the central portion in order while narrowing the mutual interval.

In the assembly section 28, a pair of upper and lower side surface plate members 30A and 30B which move forward horizontally and in parallel on the base mount via the upper and lower guide rolls 36A and 36B.
On the other hand, a pair of left and right upper and lower members 31A, 31B that move while narrowing the mutual distance from each other approach each other, and the caulking portions 32 at both widthwise ends of the upper and lower members 31A, 31B are closer to the side plate members 30A, 30B. The hollow structure H ₂ is assembled by fitting over the ends. The hollow structure H ₂ thus assembled is then fed into the caulking portion 29.

As shown in the enlarged view of FIGS. 13 and 14, the caulking portion 29 is provided at the front end of the base pedestal 25 and is provided with a frame for holding the fed hollow structure H _2. The frame-like frame 39 and a supporting beam 45 which is held in the frame-like frame 39 with a caulking mechanism at its tip end. That is, in the caulking portion 29, the upper surface of the base pedestal 25 is made of a board material and the receiving board 38 is formed.
In addition, a frame-shaped frame 39 is attached in a gate shape, a pair of hydraulic cylinders 40A and 40B are attached to the left and right of the frame-shaped frame 39, and pressing dies 41A and 41B are attached to their piston rods, respectively. A hydraulic cylinder 42 is attached to the upper portion, and a caulking receiving die 43 is attached to the piston rod.

Further, as shown in FIGS. 8 and 9, the base mount 2
5, a supporting frame 44 is provided at the rear end (right side in the figure), and a supporting beam 45 having a rectangular cross section is supported by the supporting frame 44 in a cantilevered manner. The supporting beam 45 horizontally extends its tip to the front caulking portion 29. It is stretched and the tip is inserted into the frame-shaped frame 39 of the caulking portion 29. Then, hydraulic cylinders 46A and 46B directed outward are attached above and below the tip of the support beam 45, and punch holders 47A and 4A are attached to their piston rods, respectively.
7B is attached to the punch holders 47A and 47B, and punches 48 for crimping are attached to both ends of the punch holders 47A and 47B in the width direction. Then, the pressing dies 41A and 41B, the caulking receiving die 43, and the receiving board 38.
A pair of left and right upper and lower members 31 are provided in a compartment constituted by
The assembled hollow structure H ₂ assembled by A and 31B and the pair of upper and lower side surface plate members 30A and 30B is fed, and the punch holders 47A and 47B are attached to the inside of the assembled hollow structure H _2. The tip of the support beam 45 is inserted.

Therefore, in this hollow structure manufacturing apparatus B, the side surface plate member 30 is provided in the plate member supply section 26.
A and 30B are unwound from the upper and lower winding rolls 35A and 35B, and proceed in the horizontal direction via the guide rolls 36A and 36B, and at the same time, the crimping portions 3 are provided at both widthwise end portions.
The upper and lower members 31A and 31B provided with 2 move in a left-right pair on the base pedestal 25 from both left and right sides toward the central part, and gradually move toward each other at a narrower interval. The caulking portion 32 and the side end portions of the side surface plate members 30A and 30B are fitted to each other in a state of surrounding the beam 45 from four sides to form an assembled hollow structure H ₂ having a rectangular cross section, and the caulking portion 29 has a frame shape. Move into frame 39.

This movement is made possible by the feeding mechanism using the stepping motor as described above, so that the assembled hollow structure H ₂ is stopped at a predetermined position in the frame-shaped frame 39. Subsequent to this stop, the left and right hydraulic cylinders 40A, 40B are driven to operate the pressing dies 41A, 41B, and the left and right upper and lower members 31
The flat surfaces of A and 31B are pressed, and then the upper hydraulic cylinder 42 is driven to operate the caulking receiving die 43, and together with the lower receiving plate 38, the caulking portions 32 of the upper and lower members 31A and 31B.
The outer side of the caulking receiving piece 32a is pressed.
After that, the hydraulic cylinders 46A, 46B of the support beam 45
Is driven to operate the upper and lower punch holders 47A and 47B, and the caulking punches 48 at both ends press the caulking portion 32b side of the caulking portion 32 with the caulking receiving die 43 and the receiving board 38 as backup materials. This caulking piece 3
The side plate members 30A and 30B fitted together with 2b are caulked in the receiving groove 33 on the side of the caulking receiving piece 32a.

When the caulking process is completed, the hydraulic cylinders 46A and 46B of the support beam 45 and the hydraulic cylinders 40A and 40B of the frame-like frame 39 are sequentially retracted to release the restraint of the hollow structure ₂ and cooperate with each other. The structure H ₂ is moved forward by a predetermined short distance and stopped, and the caulking process is repeated again.

A hollow structure manufacturing apparatus C according to another embodiment shown in FIG. 15 is similar to the hollow structure manufacturing apparatus B in that
It is a manufacturing device that assembles a hollow structure with a rectangular cross-section from a pair of side plate members and a pair of upper and lower members equipped with caulking parts, and integrally fixes this assembled hollow structure by caulking from the inside It is an apparatus capable of sequentially changing the height of the hollow structure. This device includes a base mount 50, a plate material supply section 51, a member supply section 52, and an assembly section 53.
And a caulking portion 54.

The plate material supply section 51 rotatably supports a pair of upper and lower winding rolls 56A and 56B at the central portion between the frames 55A and 55B provided on both sides of the base frame 50, and the opposite sides of the winding rolls 56A and 56B. And small-diameter wave type rolls 58A, 58 driven by a stepping motor 57 (FIG. 16)
B is arranged, and large-diameter corrugated rolls 59A and 59B also serving as guide rolls are arranged on the front side (the left side in FIG. 15) close to the small-diameter corrugated rolls 58A and 58B. , 56B set in a rolled state on the long side plate members 60A, 60B are small-diameter corrugated rolls 58A, 58B and large-diameter corrugated rolls 59A, 59, respectively.
After being formed into a corrugated plate by B and B, it is horizontally moved forward.

The winding rolls 56A and 56B, the small diameter corrugated rolls 58A and 58B, and the large diameter corrugated roll 59A,
The side plate member 60 is provided in the plate member path in the middle with each of the 59B members.
Slitting devices 61A and 61B are provided as both-end cutting devices for continuously cutting both ends of A and 60B to make the width uniform. Then, a recovery winding roll 63 for recovering the scrap materials 62A and 62B from the slitter devices 61A and 61B.
A and 63B are provided outside the large diameter corrugated rolls 59A and 59B.

As shown in the plan view of FIG. 16, the member supply section 52 has feed rolls 65A and 65B driven by a stepping motor 64 at the front part of the base frame 50 and guide rollers 66A and 66B at the rear part. The pair of upper member 67A and lower member 67B are configured to be supplied from a not-shown supply source from both left and right sides toward the center of the base pedestal 50 so as to narrow the mutual interval. By using the slitter device shown in this embodiment, it is possible to obtain a deformed structure in which the width of the side surface plate material is gradually changed and the height of the hollow structure is changed.

In the assembly section 53, as described above, the large-diameter corrugated rolls 59A and 59B of the plate material supply section 51 are provided on both side ends of the pair of upper and lower side surface plate materials 60A and 60B, which are horizontally and parallelly fed forward. On the other hand, the upper and lower members 67A and 6 which are supplied from the left and right sides in the member supply unit 52 in a form in which the mutual intervals are narrowed in accordance with the guide rollers 66A and 66B.
7B both width-directional side end portions of the caulking portion is fitted in and Yes so as to form the assembled hollow structure H _3, the assembled hollow structure H ₃ is to be fed to the crimping portion 54 .

In the caulking portion 54, a frame-shaped frame 68 made of a rectangular frame is provided on the upper surface of the front part of the base frame 50.
As shown in FIG. 17, the frame-shaped frame 68 has hydraulic cylinders 69A and 69B attached to the left and right, and hydraulic cylinders 70A and 70B attached to the top and bottom. Then, holding dies 71A and 71B are attached to the piston rods of the left and right hydraulic cylinders 69A and 69B,
The caulking receiving molds 72A and 72B are attached to the piston rods of the upper and lower hydraulic cylinders 70A and 70B, and as will be described later, the upper and lower members 67A and 67B of the assembled hollow structure H ₃ inserted in the frame-shaped frame 68, respectively. The flat surface and the caulking part of the can be pressed.

Further, as shown in FIGS. 15 and 16, a support frame 73 is provided at the rear portion of the base pedestal 50, and the support beam 73 is supported by the support frame 73 in a cantilever manner. Base mount 50
Is extended to a position close to the front frame-shaped frame 68 by a pair of side surface plate members 60A, 60B from the plate material supply unit 51 and a pair of upper and lower members 67A, 67B from the member supply unit 52. It is made to be surrounded.

Further, a pair of opening / closing members 75A and 75B whose bases are pivotally supported by the supporting beam 74 and can be opened left and right forward are attached to the tip of the supporting beam 74. Opening / closing member 75A having a letter shape,
A double cylinder type opening / closing hydraulic cylinder 76 is attached between the intermediate portions of 75B. And the opening / closing member 75
As shown in FIG. 17, hydraulic cylinders 78A and 78A provided with caulking punches 77 at the tips of A and 75B, respectively.
B is attached, and the gap between the pair of hydraulic cylinders 78A and 78B can be expanded or contracted by the operation of the opening / closing hydraulic cylinder 76. That is, at a predetermined position in the frame-like frame 68, a double cylinder type hydraulic cylinder 78 is provided at the tips of the pair of opening / closing members 75A and 75B.
Punch holders 79A and 79B, in which A and 78B are attached, and both piston rods of the respective hydraulic cylinders 78A and 78B are provided with a punch for caulking 77 as a caulking blade.
Is attached.

Therefore, as described above, when the assembled hollow structural body H ₃ stops at a predetermined position in the frame-shaped frame 68, the hydraulic cylinders 69A, 69B of the frame-shaped frame 68 are driven and the left and right pressing dies 71A, 71B is an upper and lower member 67A,
67B is pressed against the flat surface of the hydraulic cylinder 70A,
70B is driven, and upper and lower caulking receiving molds 72A, 72B
Presses the caulking receiving piece on the outside of the caulking portion 80 of the upper and lower members 67A and 67B. Next, the opening / closing hydraulic cylinder 76 is driven to open the left and right hydraulic cylinders 78A, 78B at a predetermined interval, and further, the hydraulic cylinders 78A, 7B are opened.
When 8B is driven, the upper and lower punch holders 79 are respectively
A and 79B are actuated, the caulking punch 77 presses the inside of the caulking portion 80 of the upper and lower members 67A and 67B, that is, one side of the caulking, and the ends are fitted with the caulking receiving molds 72A and 72B as backup materials. Side plate material 60A, 60
The caulking process of caulking together with B in the receiving groove of the caulking receiving piece can be performed.

Then, the hydraulic cylinders 78A and 78B are actuated to retract the caulking punch 77, and the hydraulic cylinders 76 for opening and closing are actuated to actuate the hydraulic cylinders 78A and 78B on both sides.
The space between them is narrowed to be separated from the hollow structure H ₃ . Then, the hollow structure H ₃ is moved forward by a predetermined distance and then stopped, and the above-mentioned caulking operation is repeated again, whereby the hollow structure body is assembled into a hollow structure by caulking. Can be integrated.

In the above apparatus, the caulking blade is
A caulking punch of a type that presses a caulking portion by a forward movement by driving a hydraulic cylinder is adopted, but the caulking blade is not limited to this type, and for example, as shown in FIG.
A method using a rotary blade, as shown in, can also be adopted. In the figure, the rotary blade 81 is provided with a caulking blade 81b having a large number of sharpened tips on the outer periphery of a disc-shaped rotary base 81a. This rotary blade 81
Is, for example, the frame-shaped frame 68 of the caulking portion 54.
The side plate members 60A and 60B and the upper and lower members 67A and 67B which are arranged in the left and right inside and are inserted into the caulking portion 54
With the movement of the assembled hollow structural body H ₃ due to the fitting with, the caulking portion is made to bite. In this method, precision is required to carry in the assembled hollow structure moving in the apparatus, but there is an advantage that caulking can be performed while continuously moving the assembled hollow structure.

In the present manufacturing apparatus, it is possible to obtain a hollow structure having a predetermined length by disposing a cutting device in front of the caulking portion and cutting the hollow structure at an arbitrary position. Further, in the above examples, the aluminum alloy material was used as the upper and lower members and the side plate material, but other materials such as an iron plate may be used, and the extruded shape member is used as the upper and lower members, but the rolled plate Alternatively, the caulking piece and the caulking receiving piece may be formed by bending and forming by means of roll forming or the like. Furthermore, although the caulking piece is formed thin and the caulking receiving piece is formed thick, it is not necessary to make the caulking piece thin or thick as long as the caulking piece can be easily strength-processed.

[0043]

As described above, the present invention has the following effects. (1) Automatic material assembly can be done with relatively simple equipment,
Cooperatively, they can be joined by caulking, and a strong hollow structure can be manufactured. (2) In the case where the material supply unit is provided with the corrugating roll, the flat plate material can be corrugated in the plate material supply process, and a hollow structure having high bending strength and the like can be manufactured. (3) If the material supply section is equipped with a plate material both-sides cutting mechanism,
For example, even if the rolled material is supplied as it is, the width dimensions can be easily aligned and supplied to the assembly section in the plate material supply process. Further, the width dimension of the plate material can be changed, and a modified hollow structure in which the height dimension of the hollow structure is changed can be manufactured. (4) With the caulking blade of the caulking portion driven by fluid pressure, the required caulking force can be easily obtained, and caulking can be performed reliably and efficiently. (5) When the caulking blade is a rotary blade, caulking can be performed by moving the hollow structure without requiring any driving force, or by supplying rotary drive to the rotary blade, plate materials can be supplied. It is also possible to dispense with the feeding mechanism in the section. (6) A caulking blade or caulking receiving member that is held in the hollow space by means of a cantilever type beam or the like can simplify the shapes of the upper and lower members, and in particular, the caulking blade is arranged in the hollow space. Enables caulking from the inside,
A hollow structure having good appearance can be manufactured.

[Brief description of drawings]

FIG. 1 is a front sectional view of a hollow structure manufacturing apparatus of the present invention according to a first embodiment.

FIG. 2 is a plan view of the manufacturing apparatus of FIG.

FIG. 3 is a partial perspective view of a hollow structure manufactured by the manufacturing apparatus of FIG.

4 is a partially enlarged cross-sectional view of the hollow structure body of FIG.

5 is a partially enlarged front view showing a waveform processing situation in the manufacturing apparatus of FIG.

6 is an enlarged front sectional view of a caulking portion of the manufacturing apparatus of FIG.

7 is a partially enlarged side view of the manufacturing apparatus of FIG.

FIG. 8 is a front sectional view of a hollow structure manufacturing apparatus of the present invention according to a second embodiment.

9 is a plan view of the manufacturing apparatus in FIG.

FIG. 10 is a side view of the manufacturing apparatus in FIG.

11 is a partial perspective view of a hollow structure manufactured by the manufacturing apparatus of FIG.

12 is a partially enlarged cross-sectional view of the hollow structure body of FIG.

13 is a partially enlarged sectional view of a caulking portion of the manufacturing apparatus of FIG.

14 is a partially enlarged side view of the manufacturing apparatus in FIG.

FIG. 15 is a front sectional view of an apparatus for manufacturing a hollow structure according to a third embodiment of the present invention.

16 is a plan view of the manufacturing apparatus in FIG.

17 is a partially enlarged side view of the manufacturing apparatus of FIG.

FIG. 18 is a partial plan view of a caulking rotary blade in the manufacturing apparatus of the present invention.

FIG. 19 (a) is a partial cross-sectional view showing a state before joining of a shape member and a plate material in a manufacturing apparatus of a conventional example, and FIG. 19 (b) is a diagram corresponding to FIG.

FIG. 20 (a) is a partial cross-sectional view showing a condition before joining a shape member and a plate member in another conventional manufacturing apparatus, and (b) is a view corresponding to (a) showing a condition at the time of joining. is there.

[Explanation of symbols]

A, B, C Hollow structure manufacturing device H ₁ , H ₂ , H ₃ Hollow structure ₁ , 25, 50 Base stand ₂ , 26, 51 Plate material supply part 3, 27, 52 Member supply part 4, 28, 53 Assembly Parts 5, 29, 54 Caulking part 6A, 6B, 30A, 30B, 60A, 60B
Side plate material 7A, 31A, 67A Upper member 7B, 31B, 67B Lower member 8,32 Caulking portion 8a, 32a Caulking receiving piece 8b, 32b Caulking piece 9, 33 Receiving groove 10A, 10B, 34A, 34B, 55A, 55B
Frame 11A, 11B, 35A, 35B, 56A, 56B
Winding roll 12A, 12B, 58A, 58B
Small diameter corrugated roll 13A, 13B, 59A, 59B
Large diameter corrugated roll 14A, 14B, 37A, 37B, 66A, 66B
Guide rollers 15A, 15B, 65A, 65B
Feed rolls 16, 39, 68 Frame-shaped frames 17, 45, 74 Support beams 17a Caulking receiving portions 18, 44, 73 Support frames 19A, 19B, 40A, 40B, 69A, 69B
Hydraulic cylinders 20A, 20B, 41A, 41B, 71A, 71B
Pressing type 21A, 21B Hydraulic cylinder 22A, 22B Punch holder 23 Caulking punch 36A, 36B Guide roll 38 Receiving plate 42, 70A, 70B Hydraulic cylinder 43, 72A, 72B Caulking receiving type 46A, 46B, 78A, 78B
Hydraulic cylinders 47A, 47B, 79A, 79B
Punch holder 48, 77 Caulking punch 57 Stepping motor 61A, 61B Slitter device 62A, 62B End material 63A, 63B Recovery winding roll 75A, 75B Opening / closing member 76 Opening / closing hydraulic cylinder 81 Rotary blade

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Watasugi Hagisawa 1-34-1 Kambara, Kambara-cho, Anbara-gun, Shizuoka Prefecture Nippon Light Metal Co., Ltd. Group Technology Center

Claims (9)

[Claims] 1. A pair of upper and lower members facing each other at both ends in the width direction, each of which is provided with a caulking portion composed of a caulking piece and a caulking receiving piece having a receiving groove facing the side of the caulking piece, and a pair of the caulking portions of the upper and lower members. An apparatus for manufacturing a hollow structure having a rectangular cross section by combining a pair of side plate members whose end portions can be fitted in a gap between the caulking piece and the caulking piece, and joining the caulking portion by caulking. , A plate material supply unit that supplies a pair of the side surface plates at a predetermined facing interval by a plate material feeding mechanism, and a pair of the upper and lower members through a guide member by a member feeding mechanism to sequentially increase the width from the facing interval wider than the width of the side surface plate material. How to fit the member supply part that narrows and supplies the crimped parts at both ends of the upper and lower members that are supplied from the member supply part to the widthwise end part of the side surface plate material that is supplied from the plate material supply part An assembling part for assembling into a hollow structure having a cross section, a caulking blade and a caulking receiving member facing each other across the caulking part are provided to receive the hollow structure and press one side of the caulking part of the caulking part with the caulking blade. And a caulking portion for caulking the caulking piece and the side surface plate material into the receiving groove of the caulking receiving piece. 2. The hollow structure manufacturing apparatus according to claim 1, wherein the plate material supply section includes a corrugated roll, and the side surface plate material is formed into a corrugated plate and supplied to the assembly section. 3. The manufacturing method of a hollow structure according to claim 1, wherein the plate material supply unit includes a plate material both-ends cutting mechanism, and adjusts the side plate material to a predetermined width dimension and supplies the side plate material to the assembly unit. apparatus. 4. The caulking section is provided with a fluid pressure cylinder for driving the caulking blade.
The hollow structure manufacturing apparatus described. 5. The apparatus for manufacturing a hollow structure according to claim 1, wherein the caulking portion is provided with a caulking blade arranged on the outer periphery of the rotary base. 6. The hollow structure according to claim 1, wherein the caulking portion has the caulking blade arranged in a hollow space of the hollow structure and the caulking receiving member arranged outside the hollow space. Body manufacturing equipment. 7. The hollow structure according to claim 1, wherein the caulking portion has a caulking receiving member arranged in a hollow space of the hollow structure and a caulking blade arranged outside the hollow space. Manufacturing equipment. 8. The apparatus for manufacturing a hollow structure according to claim 6, wherein the caulking blade is arranged in the hollow space by holding it by a beam fixed to an apparatus stand in a cantilever manner. 9. The apparatus for manufacturing a hollow structure according to claim 7, wherein the caulking receiving member is arranged in the hollow space by holding it by a beam fixed to an apparatus stand in a cantilever manner.