JP2000117359A - Exterior sheet machining device, and exterior sheet machining method using the device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the machining efficiency and the safety by making folded end faces of two this sheets in close contact with each other to form a contact surface part, inserting a machine main body into the contact surface part, and moving the along the contact surface part thereby continuously folding the sheets. SOLUTION: Two thin sheets to be folded, i.e., exterior sheets 10 are made in close contact with each other so that pre-folded end faces a1, a2 opposite to each other to form a contact surface part. The exterior sheets 10 are fixed to a machining frame, and a body 8 is fitted so as to surround a joined part of the exterior sheets 10. A male screw rod is rotated by a reversible rotating motor, and the body 8 is moved in the longitudinal direction (the direction of the arrow L) of the joined part of the exterial sheets 10. The exterior sheets 10 are continuously folded and finished by passing the exterior sheets 10 through these parts by a guide plate for folding and a guide roller arranged to give a folding line.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an external plate processing apparatus for processing and joining an external plate such as a heat insulating device outer plate and a duct, and a method for processing an external plate using the same.

[0002]

2. Description of the Related Art In order to form an exterior plate in a heat insulating device, a duct, or the like, it is generally necessary to perform sheet metal processing in which two thin steel plates are braided and joined into a long length. Figure 2
As shown in (c), both ends of the thin plate to be joined are
This is a process in which the sheet is bent at an angle and tightly joined so that both ends of the sheet are intertwined with each other. In this processing operation, a pre-dimensioned exterior plate is carried to a mounting site at a sheet metal processing site or the like, and the joint is manually bent by a worker using a hand-held tool such as a platen or pliers. Accordingly, it is common to join and finish the exterior plates.

[0003]

As described above, the brazing connection is based on a special bending process of a sheet metal.
A large number of man-hours are required because a specific skilled worker performs one-by-one manual processing with a hand-held tool.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art. After two thin steel sheets to be joined are mounted on a work frame, an exterior plate is formed along the joint of the thin steel sheets. It is an object of the present invention to provide an exterior plate processing apparatus capable of continuously performing a work of joining brazes by moving the processing apparatus, and an exterior panel processing method using the same.

[0005]

The object of the present invention is to form a contact surface by closely contacting and fixing the bent end faces of two thin plates so as to face each other, and to form an exterior plate processing apparatus main body (hereinafter, referred to as a main body) on the contact surface. Abbreviated) from its U-shaped opening, and by means of means for moving along the longitudinal direction of the contact surface portion, successively bending the end surfaces of the thin plates to perform continuous brazing. Achieved.

For example, referring to FIGS. 1 and 2,
Folded end faces a ₁ and a _{2 of the} exterior plate 10 composed of two thin plates
Are brought into close contact with each other to form a contact surface portion, and the main body 8 is mounted on the contact surface portion from one end 8a of the two thin plates. Next, the above-mentioned bending operation will be described step by step with reference to FIG. By mechanically moving the main body 8 of the present invention along the longitudinal direction of the contact surface portion, a combination of the guide plates 1, 3, 5, 7 and the guide rollers 2, 6 disposed inside the main body 8 by the action, a first bending step of the end faces a ₁ in one of the thin plate bending at right angles to the direction of covering the end face a ₂ of the other sheet, the end face a ₁ is folding more at right angles to writing wrap the end face a ₂ Second bending step and end face a ₂
The enveloped leave the end faces a ₁ further orthogonally bent in the third bending process is performed continuously brought into close contact with the main surface of the thin plate, it is possible to form the goby pair bonding. The main body 8 is formed by continuously joining and joining the joint surfaces of the exterior plate 10 by an appropriate combination and arrangement of the guide plates 1, 3, 5, 7 and the guide rollers 2, 6 disposed inside. Means are configured.

[0007]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing the appearance of the main body of the present invention,
2A is a view taken in the direction of the arrow A in FIG. 1, FIG. 2B is a view taken in the direction of the arrow B in FIG. 1, and FIG. 2C is a view of the exterior plate at the end of the first to third bending steps. It is sectional drawing which shows a shape. FIG. 3 is a perspective view showing a state where the exterior plate and the main body of the present invention are mounted on a processing frame.

As shown in FIG. 1, two thin plates to be joined by brazing, that is, an exterior plate 10 are formed by bending an end face a
_1, a ₂ form a surface-contacting portion is brought into close contact so as to face each other. Such an exterior plate 10 is fixed to the processing underframe 14 (FIG. 3), and the main body 8 is mounted so as to surround the joint of the exterior plate 10 from the opening 8a side.

[0009] At this time, the depth of the U-shaped opening of the main body 8, a margin to some extent larger than the width dimension of the end face (large) a _1, similarly the width of the opening, Hazegumi It is preferable to move the main body 8 so that the size of the main body 8 is slightly larger than the forming width of the joint. Further, in order to wrap around the end face (large) a ₁ is an end face (small) a ₂ a goby pair bonding process, the end face (large) width of a ₁ is an end face (Small) towards slightly greater than twice the width of a ₂ preferably, also, the width dimension of the end face (large) a ₁ is considered to be roughly twice the molding width of goby set junction. The meaning of “approximately” in claim 1 or “substantially” in claim 2 is based on the consideration of the processing error and the dimensional configuration as described above.

As shown in FIG. 3, when the male screw rod 11 is rotated by forward rotation of the reversible rotary motor 12, the main body 8 is moved in the longitudinal direction of the joint portion of the exterior plate 10 (the direction of arrow L in FIG. 1). Is possible. FIG. 2 (a),
Guide plates 1, 3, 5, 7 for bending shown in (b);
Guide rollers 2, 6 arranged to add fold lines
Thus, the outer panel 10 is configured to pass between these components, whereby the bending of the outer panel 10 and the closing operation are continuously performed. The means for continuously forming the solder joint part according to claim 2 is a component disposed as suitable for processing based on the following first to third bending steps, for example,
The guide plates 1, 3, 5, 7 and the guide rollers 2, 6 and the support plate 4 shown in FIG. 2 and the mutual arrangement of these components correspond to this means.

In short, according to the present invention, after inserting the main body 8 from one end of the contact surface of the exterior plate 10, the male screw rod 11 is screwed into the female screw hole 9, and the reversible motor 12 is connected to the end of the male screw rod 11. I do. By operating the reversible rotary motor 12, the male screw rod 11 rotates, whereby the main body 8 moves downward in FIG. 3 along the contact surface portion of the exterior plate 10, and is joined to the exterior plate 10 by brazing. Processing operations are performed automatically.

FIG. 2C is a cross-sectional view showing the shape of the armoring plate at the end of the first to third bending steps, and FIGS.
(C) is sectional drawing which shows the relationship of the member of an exterior board and a main body in each intermediate position of a 1st-3rd bending process, respectively.

In the first bending step, as shown in FIG. 4A, when the main body 8 slides along the curved surface of the guide plate 1, the main body 8 is provided so that the end faces a ₁ and a ₂ face each other and come into close contact with each other. Next, the exterior plate 10 is pinched between the guide roller 2 and the side wall of the main body 8, and the outer peripheral edge of the guide roller 2
Fold line is attached clearly the longer end face folded portion of a ₁ in. Longer end faces a ₁ of, only the part which is thrust upward from the end face a ₂ is deformed by Niwan song as soon as shown in FIG. 4 (a) by the guide plate 3, and at the end of the guide plate 3, the end face 2 to abut against the surface of the supporting plate 4 in the direction of a ₂
It is bent at right angles to the shape shown in FIG.

[0014] In the second bending step, as shown in FIG. 4 (b), the end face a ₂ is folded in a perpendicular direction by the pressing force from above and side by passing through the guide plate 5, the guide plate 5 At the end of the end face a as shown in FIG.
₁ is shaped in the form of writing wrap the end surface a _2. Surface of the guide plate 5 in contact with the end face a ₁ is formed in a three-dimensional curved surface as bending gently pressing the end faces a ₁ from the top and side.

[0015] In the third bending step, as shown in FIG. 4 (c), by passing through the guide plate 7, the end faces a ₁ that wrapping an end face a ₂ is brought down further perpendicularly with the end surface a ₂ Guide As shown in FIG. 2 (c), the end of the plate 7 is in close contact with the main surface of the thin plate. Surface of the guide plate 7 in contact with the end face a ₁ is also the need to grant the same function as the second bending process 3
It is formed on a three-dimensional curved surface. The guide rollers 2 and 6 have thinner roller end portions that come into contact with the outer plate 10 in order to strongly press the outer plate 10 along the bending line and add a fold line. As a result, the joint part of the outer panel 10 is firmly and tightly fixed, and is formed so as not to be easily displaced or detached.

[0016]

As described above, according to the present invention, it is possible to continuously perform the brazing and joining work of the armor plate, which has conventionally depended on the manual work of a skilled person, thereby improving work efficiency and safety. Is achieved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the appearance of a main body of the present invention.

2A is a view taken in the direction of the arrow A in FIG. 1, FIG. 2B is a view taken in the direction of the arrow B in FIG. 1, and FIG. 2C is a sectional view showing the shape of the exterior plate at the end of the first to third bending steps. is there.

FIG. 3 is a perspective view showing a state in which an armor plate to be joined and joined and a main body of the present invention are mounted on a processing frame.

FIG. 4 is a cross-sectional view showing a relationship between members of the exterior plate and the main body at respective intermediate positions in the first to third bending steps of the exterior plate of the present invention.

[Explanation of symbols]

1, 3, 5, 7 ... guide plate 2, 6 ... guide roller 4 ... support plate 8 ... main body 9 ... female screw hole 10 ... exterior plate 11 ... male screw rod 12 ... reversible rotary motor 13 ... support bracket 14 ... processing frame

Claims (2)

[Claims] 1. A processing base frame for fixing a reversible rotary motor to which a male screw rod is connected, wherein an opening having at least an inlet side and an outlet side formed in a U-shape and an intermediate portion between the inlet side and the outlet side are provided. An exterior plate processing apparatus main body comprising: a provided guide plate and guide roller; and a female screw hole drilled in parallel with the direction from the entrance side to the exit side and screwed with the male thread rod. The depth of the U-shaped opening of the processing apparatus main body is approximately equal to the forming width of the joint of two thin plates to be joined.
Times, the width of the U-shaped opening has a dimension substantially equal to the molding width of the brazed joint, and the exterior plate processing apparatus main body, from the entrance side of the opening,
The outer plate processing apparatus body is moved in the longitudinal direction of the contact surface by introducing the screw into the contact surfaces of the two thin plates to be joined and rotating the male screw, and each end face of the two sheets is plastically deformed. An exterior plate processing apparatus, comprising means for continuously forming the brazed joint portion by bending the joint to be integrated. 2. A processing method in which both ends of two thin plates are joined by brazing, wherein the two thin plates have a main surface and end surfaces a ₁ and a ₂ bent at right angles to the main surface. The width ratio of the end faces a ₁ and a ₂ of the _two thin plates is approximately 2: 1.
The two main surfaces of the two thin plates are aligned on the same plane, and the contact surfaces are formed in close contact with each other so that the end surfaces a ₁ and a ₂ face each other. from one end of, and attaching the outer plate main processing apparatus for goby pair bonding, by moving toward the other end of the surface-contacting portion, bend 90 ° fold in a direction coming close to the a ₁ to a ₂ a first bending step, a second bending step of bending further 90 ° in the same direction the a _1, a third bending step to come into close contact with the main surface of the thin the a ₁ further 90 ° by bending the same direction A processing method characterized by performing and continuously forming a brazed joint.