JPS6114086A - Manufacture of frame body - Google Patents

Abstract

PURPOSE:To manufacture exactly and efficiently a frame body by cutting opposed terminals in parallel in a state that two pieces of frame materials remain held by a clamp, and thereafter, making the clamp approach relatively, and executing a joint in a state that the cut edge is made to abut and held. CONSTITUTION:A clamp device 2 of a turntable 1 is turned to a prescribed position and stopped, and two pieces of frame materials a', b' formed in a prescribed shape are held by chucks 21, 22 so as to be opposed to each other at a prescribed angle. Subsequently, the table 1 is turned to a position of a cutting device 3, opposed terminals of the materials a', b' are cut in parallel by rotary cutting edges 32, 33, and thereafter, the chucks 21, 22 are made to approach and moved relatively by a driving cylinder 25, and the cut edge is made to abut and held. Thereafter, the table 1 is turned to a position of welding machines 4, 5, and but parts of the materials a', b' are welded from both sides. In this way, a desired frame body can be manufactured exactly and efficiently.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method of manufacturing a frame applicable to assembling frames for automobiles, architecture, showcases, and the like.

2. Description of the Related Art Conventionally, when manufacturing window frames for automobiles, for example, metal strips are bent in advance into a predetermined cross-sectional shape, and then bent into an abbreviated shape or an I-shape in the axial direction. Usually, a frame material is made, each end of which is to be joined to each other is separately cut diagonally, and then held individually with a clamp and welded and fixed to each other by abutting each cut end. In addition, somewhat different from this process, it has been proposed to simultaneously cut and form the ends at a predetermined angle during the bending process of the frame material using a stretch bender (Japanese Unexamined Patent Publication No. 55-144385).

Problems to be Solved by the Invention However, in both of these processes, the ends of each frame material are individually cut and formed, and then in the welding process, the worker sets the ends in a clamp and abuts the cut edges against each other to weld. Because of this, errors occur in the mutual angles when cutting and forming the ends, making it impossible to match them accurately.Also, even if the angles of the cut edges are accurate, positional deviations occur when aligning each other, resulting in the welding part There is a tendency for variations in accuracy to occur.

Means for Solving the Problems In the method of manufacturing a frame body according to the present invention, at least two frame materials, which have been bent in advance into a predetermined cross-sectional shape and axial direction, are clamped so as to face each other at a constant angle. After holding it in this state and cutting each opposing end in parallel, move the clamp relatively horizontally so that each cut edge touches each other, and with that horizontal movement, each cut edge abuts and joins each other. is being used.

Function: In this method of manufacturing frames, each frame material is held in place with clamps, and the ends are cut, the cut edges are attached, and the cut edges are joined.Holding is changed after each process. The device maintains the state it was in when the terminal was cut, and continues the process up to joining.

Embodiments will now be described with reference to the accompanying drawings.

This frame body constitutes a window frame for an automobile, and the frame materials a and b (see Fig. 1), which are made by bending metal snap material into two different predetermined cross-sectional shapes, are aligned along the axis. The frame materials a' and b' are formed by bending the respective directions as necessary.

The frame materials a' and b' are held with clamps (described later) (see Figure 2), and in that state, the ends are cut diagonally parallel to each other, and the cut edges are abutted against each other and welded. (See Figure 3).

The frame manufacturing apparatus includes a turntable 1 and a clamping device 2 for holding each frame material a', b'. b′
The cutting device 3 is placed at each stop position by rotating the turntable 1 by about 90 degrees while holding the turntable 1 in between. Welding devices 4 and 5 that perform necessary construction can be used. (See Figures 4-8).

The clamping device 2 has chucks 21 and 22 that clamp frame materials a' and b' facing each other.
．． After the frame materials a' and b' are held between the frame materials 22 by the worker, the workers continue to hold them until all the work is completed. Also, among these, one 21 is the other chuck 22.
The guide shaft 23. '24, and is configured to be movable by actuation of a drive cylinder 25 (see Figures 7 and 8). The cutting device 3 is a motor 3
Equipped with a rotary blade 32°33 such as a metal saw that rotates at 1,
The rotary blades 32 and 33 are mounted on the same axis of the support shaft 34 in parallel. Moreover, these rotary blades 32.
Reference numeral 33 rotatably supports a support frame 35 on a bearing, and is mounted so as to be able to swing up and down by linking it to the tip of a rod of a hydraulic cylinder 36 or the like. Welding machine 4
5 can be used to weld the abutting ends i of the frame materials a' and b' with one side 4 and the other side with the other side 5.

Using this manufacturing device, when the clamping device 2 stops moving due to the rotation of the turntable l in front of the worker, the frame materials a' and b ' is inserted and clamped. Immediately after finishing the work, the turntable 1 moves 90@ in the force direction and stops at the position where the cutting device 3 is placed. Along with this stop, the rotary blade 3
2 and 33 move downward to cut the ends of frame materials a' and b' diagonally parallel to each other. When the cutting operation is completed, the drive cylinder 25 is operated to move the chuck 21 horizontally so as to approach the fixed chuck 22 on the other side. This horizontal movement can be stopped at a certain position with a stopper 26 (see Figures 7 and 8), and at that stop position, the frame material a that has been cut diagonally
The cut edges of ' and b' come into contact with each other. After completing the work up to this point, there will be 90 more turntables.
The frame material a' is rotated in each direction and abutted at each stop position.

Weld the ends of b'. When these welding operations are completed, the framed material is moved back to the position in front of the original worker placement position, where it is removed from the clamp device 2 and replaced with a new frame material to continue the work.

In addition, a positioning stop mechanism (not shown) is arranged at the rotation stop position of the turntable 1 mentioned above, so that the stop position can be accurately matched to the cutting device 3 and each welding machine 4, 5. ing.

In addition, in the above-mentioned embodiment, an automobile window frame was manufactured using frame materials a' and b' made of metal strip material formed into a predetermined shape. (See FIG. 9) can also be applied to the manufacture of architectural window frames, frames d for showcases, etc. (see FIG. 10).

Effects of the Invention As described above, according to the method for producing a frame body according to the present invention, since the ends are cut, the cut edges are butted, and the joints are performed while each frame material is held between the clamps, there is no misalignment of the joint edges. The frame body can be manufactured accurately and efficiently without any problems.

[Brief explanation of drawings]

Figures 1 to 3 are explanatory diagrams of each frame material to be assembled by the method according to the present invention, Figure 4 is a plan view of the manufacturing equipment that implements the method, Figure 5 is a front view of the same, and Figure 6 is the same equipment. 7 and 8 are explanatory diagrams of the operation of the same device, No. 9.10r
! 4 is an explanatory diagram of a frame body having another shape that can be manufactured by the method according to the present invention. a', b' (c): Frame material, l: Turntable, 2
: Clamp device, 32, 33: Rotary blade, 4.5: Welding machine. Figure 1 0. Figure 4. Figure 2 3rd! Tape IL -7 Thorn rotation A 3- Figure 5 Figure 6 A

Claims (4)

[Claims] (1) Hold at least two frame materials formed into a predetermined shape with a clamp so that they face each other at a certain angle, cut the opposing ends in parallel, and then tighten the clamp so that the cut edges are in contact with each other. A method for manufacturing a frame body, characterized in that the frame body is relatively moved horizontally, and each cut edge is held in contact with and joined by the horizontal movement to join each other. (2) The method for manufacturing a frame according to claim 1, wherein the terminal cutting is performed using two rotary blades mounted coaxially in parallel with each other. (3) A method for manufacturing a frame according to claim 1, wherein the joining is performed by welding. (4) The method for manufacturing a frame according to claim 1, wherein the holding, terminal cutting, and joining of the frame material are performed every time the turntable stops rotating.