JPH05177475A - Clamping device for opening frame assembly - Google Patents

Abstract

PURPOSE:To improve the joining accuracy of a frame member in the assembly of an opening frame so sharply by installing a depth surface part clamp and a pair of a width part clamps, being inserted into the frame member from an opening between width surface parts, and pressing the depth surface part and the paired width surface parts of the frame member to each positioning base and clamping them. CONSTITUTION:In performing the assembly of a door frame, first of all, a moving side positioning base 3B is clamped to width size corresponding position and then a horizontal frame 1 and a vertical frame 2 are set onto a positioning base 3. In this state, after a corner clamper 8 and an intermediate clamp 6 are operated and both these frame members 1, 2 are clamped, both ends of these frame members 1, 2 come to be welded together, but at each edges of these frame members 1, 2, a depth surface part clamp 9 of the corner clamper 8, two width surface part clamps 10, 11 and a width surface part cover 12 clamp each depth surface part of the frame members 1, 2 and the paired width surface parts into pressed form each. With this constitution, end faces themselves of the frame members 1, 2 are accurately butted to each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening frame assembling clamp device used for assembling a door frame or the like.

[0002]

BACKGROUND OF THE INVENTION Generally,
An opening frame such as this kind of door frame is formed in a substantially U shape in cross section so as to have a prospective surface part forming an inner peripheral surface of the opening frame and a finding surface part rising outward from both side edges of the prospective surface part. The horizontal frame member and the vertical frame member are assembled by welding. At the time of the assembly, the set base is set on the positioning table in order to weld the ends of both frame members cut at approximately 45 ° in a butt shape with high accuracy. It is necessary to fix both the frame materials thus made by using a clamp device. However, since the conventional clamp device merely presses and fixes the frame material set on the positioning table from one direction, there are variations in the molding accuracy of the frame material and cutting of the frame material end portion. Even if some deformation occurs, it is not possible to correct it.Therefore, in the past, it was the actual situation that the operator manually corrects it at the time of welding. I'm running.

[0003]

SUMMARY OF THE INVENTION The present invention has been devised with the object of providing a clamp device for assembling an opening frame which can eliminate these drawbacks in view of the above-mentioned circumstances. An expected surface portion that forms the inner peripheral surface of the frame,
A horizontal frame member and a vertical frame member, which are formed in a substantially U-shaped cross section so as to have outward facing surface portions that rise outward from both side edges of the expected surface portion, are assembled into an opening frame by butt welding of end portions to each other. At this time, a clamp device for fixing both frame material end portions set on the positioning table, wherein the clamp device is inserted into the frame material through an opening between the finding surface portions, and The present invention is characterized by including at least a projected surface portion clamp for pressing and fixing the pair of found surface portions against the positioning table and a pair of found surface portion clamps. Further, according to the present invention, the assembling accuracy of the opening frame can be remarkably improved and the workability and the work efficiency can be remarkably improved without the need for manual correction.

[0004]

An embodiment of the present invention will be described below with reference to the drawings. In the drawings, reference numerals 1 and 2 denote a horizontal frame member and a vertical frame member respectively constituting a door frame, and both frame members 1 and 2 are prospective surface portions 1a and 2a forming an inner peripheral surface of the door frame, and the prospective surface portion. 1a, 2a are formed in a substantially U-shaped cross section so as to have finding surface portions 1b, 2b that stand outward from both side edges.
Furthermore, step portions 1c and 2c are formed on the projected surface portions 1a and 2a so as to have a contact surface of the door, while the projected surface portion 1b and
Inward flange portions 1d and 2d are formed by bending at the tip of 2b. Both frame members 1 and 2 are assembled into a door frame by cutting the end portions at an inclination of 45 ° and then joining the inclined end portions together by welding. Both are conventional.

On the other hand, 3 is a positioning base used when assembling the door frame, and the positioning base 3 has a fixed side 3A on which one vertical frame 2 is set and the other vertical frame 2 is set and assembled. It is composed of a movable side 3B which is movable along the guide rail 4 so as to correspond to the width dimension of the door frame, and each positioning base 3A, 3B has a horizontal frame set between both sides. 1 and each of the vertical frames 2 are provided with corner pieces 5 for guiding the abutting of the inclined end faces so that an angle formed by each vertical frame 2 is a right angle, and an intermediate clamp 6 for fixing an intermediate portion of each vertical frame 2 is provided. There is. Reference numeral 7 is a replacement piece that is replaced according to the type of door frame to be assembled.

Further, 8 is a corner clamp device provided on each of the positioning bases 3A and 3B so as to fix the ends of the horizontal frame 1 and the vertical frame 2, and each corner clamp device 8 includes: A face surface clamp 9, a face surface clamps 10 and 11, and a face surface cover 12 are provided, respectively.

The projected surface portion clamp 9 is arranged substantially horizontally, but is provided with a clamp portion 9b which moves back and forth based on the expansion and contraction operation of the cylinder 9a, and when the clamp portion 9b is in a forwardly moved state, the tip thereof is provided. Portion is inserted into the frame members 1 and 2 through the opening between the flange portions 1d and 2d, and the tip surface 9c presses against the inner surface of the prospective surface portions 1a and 2a to make the prospective surface portions 1a and 2a into the corner piece 5. It is designed to be pressed against and fixed.

On the other hand, the facing surface clamps 10 and 11 are inclined downward and upward, respectively.
Similar to the prospective surface clamp 9, the clamp parts 10b, 1 which move forward and backward based on the expansion and contraction operation of the cylinders 10a, 11a.
1b is provided. Then, in a state where one of the facing surface part clamps 10 arranged to be inclined downward is operated and the clamp part 10b is advanced, its tip end is inserted into the frame members 1 and 2 in an inclined manner, and the inclined tip end surface 10c is It is pressed against the inner surfaces of the lower finding surface portions 1b, 2b, and the corner piece 5
It is pressed against and fixed to the clamp part 10b.
A second contact surface 10d is formed at the tip of the second contact surface 10d that presses against the inner surfaces of the prospective surface portions 1a and 2a, whereby the prospective surface portions 1a and 2a are simultaneously pressed against the corner piece 5 (exchange piece 7). It is supposed to be pressed.

Further, the clamp portion 11b provided on the other finding surface portion clamp 11 is the above-mentioned finding surface portion clamp 10.
Similarly, the slanted tip surface 11c is pressed into contact with the inner surfaces of the upper finding surface portions 1b and 2b by being inserted into the frame materials 1 and 2, but the upper finding surface portions 1b and 2b are supported by the corner piece 5. Since it is not, it is adapted to be fixed by being pressed against the finding surface portion cover 12. That is, the finding surface portion cover 12 is configured to be movable back and forth in the horizontal direction, and fits into the groove portion 5a formed in the side surface portion of the corner piece 5 in a forward state along the outer surfaces of the upper finding surface portions 1b and 2b. Is integrally supported by the corner piece 5, and in this state, it is configured to receive and support the pressing of the upper finding surface portions 1b, 2b.

In the embodiment of the present invention constructed as described above, when assembling the door frame, first, the movable side positioning base 3B is fixed to the width corresponding position, and then the horizontal frame 1 and the vertical frame. 2 is set on the positioning table 3. Then, in this state, the corner clamp device 8 and the intermediate clamp 6 are operated to fix both frame members 1 and 2, and then the ends of the frame members 1 and 2 are welded. At the end of 2, the projected surface portion clamp 9, the found surface portion clamps 10 and 11 and the found surface portion cover 12 of the corner clamp device 8 are the projected surface portions 1a and 2a of the frame members 1 and 2 and the pair of found surface portions. Since 1b and 2b are fixed in a pressed state, the lateral frames 1 and 2 are corrected by correcting the dimensional variations at the time of molding the frame members 1 and 2 and the deformation caused at the time of cutting the frame member ends.
And the end faces of the vertical frame 2 can be accurately butted against each other.

As described above, according to the present invention, the positioning table 3
Although the horizontal frame 1 and the vertical frame 2 set in the above are clamped and fixed, the corner clamp device 8 includes a projected surface portion clamp 9, a found surface portion clamps 10 and 11, and a found surface portion cover 12. From the direction, the projected surface portions 1a and 2a of the frame members 1 and 2 and the pair of found surface portions 1b and 2b are pressed and fixed, respectively, to cause variations in the dimensions of the frame members 1 and 2 at the time of molding and when the end portions of the frame members are cut. Since such deformation can be corrected, extremely accurate welding can be performed.

Moreover, since automatic correction is performed without manual correction by an operator as in the conventional case,
Perhaps it is possible to dramatically improve the workability when assembling the door frame, but it is also possible to greatly improve the work efficiency.

Further, since the corner clamp device 8 can automatically fix the frame members 1 and 2 sequentially from multiple directions, the automatic welding device can be constructed by combining with the welding robot.

The present invention is of course not limited to the above-mentioned embodiment, and for example, FIGS. 4 and 5 are used.
As in the second embodiment shown in FIG. 2, the finding surface section covers 12 of the left and right vertical frame fixing corner clamp devices 8 may be provided with positioning pieces 13 for positioning the horizontal frame 1, respectively. That is, the positioning piece 13 has a groove portion 13a that matches the end shape of the horizontal frame 1, and based on the forward movement of the found surface portion cover 12 before the operation of the horizontal frame corner clamp device 8, The horizontal frame 1 is fitted to the left and right ends of the horizontal frame 1 to accurately position the horizontal frame 1 at a predetermined set position. At this time, the left and right ends of the horizontal frame 1 are forcibly formed into the groove 13a of the positioning piece 13. Since the corner clamp device 8 is aligned, effective correction of the found direction and the expected direction is performed before the corner clamp device 8 is actuated, which is extremely convenient because the assembling accuracy of the door frame can be further improved.

[0015]

In summary, since the present invention is constructed as described above, the clamping device of the present invention is used for fixing the end portions of both frame members set on the positioning table, while the clamping device of the present invention has Inserted into the frame material from the opening between, at least the prospective surface portion of the frame material and the pair of found surface portions for pressing and fixing the prospective surface portion and the pair of found surface portions, respectively, since at least a pair of found surface portion clamps are provided, The edges of the frame material to be welded are pressed and fixed from multiple directions, and the variations in dimensions during molding of the frame material and the deformations generated when cutting the edge of the frame material are corrected, and the end faces of the frame material are not displaced. Since they are abutted with each other accurately, it is possible to remarkably improve the joining accuracy of the frame members in the assembly of the opening frame. Moreover, since the frame material is automatically corrected, it is not necessary for an operator to manually correct the frame material as in the conventional case, so that workability and work efficiency during assembly can be significantly improved. ..

[Brief description of drawings]

FIG. 1 is a plan view of an entire assembling apparatus.

FIG. 2 is a side view of a corner clamp device.

FIG. 3 is an enlarged sectional view of an essential part showing the operation.

FIG. 4 is a plan view of an entire assembling apparatus showing another example.

FIG. 5 is a plan view of an essential part showing the operation.

[Explanation of symbols]

 1 Horizontal Frame 1a Specified Surface 1b Specified Surface 2 Vertical Frame 2a Specified Surface 2b Specified Surface 3 Positioning Platform 5 Corner Piece 8 Corner Clamp Device 9 Specified Surface Clamp 10 Specified Surface Clamp 11 Specified Surface Clamp 12 Specified Surface Cover

Claims (1)

[Claims] 1. A horizontal frame member and a vertical member formed in a substantially U-shaped cross section so as to have a prospective surface portion forming an inner peripheral surface of an opening frame and a finding surface portion rising outward from both side edges of the prospective surface portion. When assembling the frame member into the opening frame by butt welding of the end members, a clamp device for fixing both end parts of the frame member set on the positioning base, the clamp device comprising: At least a prospective surface part clamp and a pair of findable surface part clamps that are inserted into the frame material from the opening of the frame member and press and fix the prospective surface part and the pair of finding surface parts of the frame material against the positioning base, respectively. A clamp device for assembling an opening frame.