JP2583189B2 - Door frame assembly equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door frame assembling apparatus for connecting a vertical frame and a horizontal frame by welding.

[0002]

2. Description of the Related Art A door frame is connected in a rectangular shape by welding a metal vertical frame and a horizontal frame at corners. This door frame is manufactured by setting a vertical frame and a horizontal frame on a frame holding member and welding the corners. In this way, the device for manufacturing the door frame is:
A vertical frame and a horizontal frame are set in a square shape, and a frame holding member for holding the rectangular frame and the horizontal frame in a fixed position, and welding means for welding and connecting the held vertical and horizontal frames at corners are provided.

A vertical frame and a horizontal frame which are connected by welding are welded on both sides of a door frame. This is to increase the connection strength between the vertical frame and the horizontal frame. In order to weld the door frame on both sides, it is sufficient to hold the door frame horizontally and move the welding robot to the upper and lower surfaces of the door frame. However, since the device of this structure moves the welding robot to both the upper surface and the lower surface of the door frame, the arm of the welding robot becomes longer,
The moving amount also increases, and the moving mechanism becomes complicated. This disadvantage can be solved by inverting the door frame with the frame holding member. Hold the door frame horizontally and weld the top, then
The door frame can be turned 180 degrees and inverted to weld the opposite side of the door frame.

[0004]

The door frame assembling apparatus of this structure can weld both the vertical frame and the horizontal frame by welding only the upper surface of the door frame with a welding robot. Therefore, the structure of the welding robot can be simplified. However, in this device, the vertical frame and the horizontal frame are arranged and set in a rectangular shape on the frame holding member, and after welding, it is necessary to take out the door frame from the frame holding member. The work of accurately setting the long and heavy vertical frame and the horizontal frame at predetermined positions is time-consuming and inefficient, and requires considerable labor. It moves to the position A as shown in FIG. 1, sets the vertical frame 1a, and then
This is because the vertical frame 1b is moved to the position B and the vertical frame 1b is set on the frame holding member 3. When the vertical frames 1a and 1b are set on the frame holding member 3 from the position A, the setting can be performed efficiently. However, when the vertical frames 1a and 1b are set in this way, the operator needs to reach for a long time and set the long and heavy vertical frame 1b at a fixed position of the frame holding member 3. The operation of setting the vertical frame 1b in this position is extremely hard work, and the operation cannot be actually continued due to fatigue. For this reason, the operator is forced to move to both sides of the frame holding member 3 with the vertical frames 1a and 1b and set the frame holding member 3 at a fixed position. For this reason, the vertical frames 1a and 1b could not be set efficiently, and there was a drawback that the fatigue of the worker was great and the door frame could not be manufactured efficiently. Fine
Welding jig that supports both ends of long steel material so that it can rotate
Has been developed (Publication No. 62-146595)
Information). The device described in this publication is shown in FIG. this
The welding jig device in the figure is a rotating member that clamps both ends of steel material etc.
20 is mounted on a circular rail 21 so that it can rotate.
You. The rotating member 20 is a slit for inserting and holding a steel material or the like.
A port 22 is provided. A steel material or the like is sandwiched between the slits 22.
Holding member 23 is provided. Supports rotating member 20
Rail 21 travels freely on a travel rail 24
It is vertically fixed to the table 25. Rotating member for holding steel material
In order to rotate 20, each carriage 25 has oil
A pressure motor 26 is provided. Welding jig device of this structure
Converts the elongated member such as a steel material into the slit 22 of the rotating member 20.
And held between the gripping members 23. This state
In such a state, hold the steel material etc. in place and weld it.
The rotating member 20 is rotated by the
Move the steel materials etc. to the optimal posture. This welding jig
The holder holds both ends of a steel material, etc.
It is not necessary to move as shown by the chain line AB in the device shown in
No. Moving between the rotating members 20, both ends of two steel materials etc.
Can be set on the rotating member 20. Accordingly
Therefore, the welding jig of this structure is compared with the process shown in FIG.
And there is a feature that steel materials etc. can be set easily. But this
The device with the structure described above can easily set the door frame, and
There is a disadvantage that it is difficult to assemble efficiently and with high precision. That
Is inserted at both ends of the steel material or the like into the slit 22 of the rotating member 20
After welding is completed, slit 2
It is necessary to remove both ends from 2
You. Furthermore, both ends are inserted into the slit 22 and set.
The structure ensures that vertical and horizontal frames that are not connected to each other
There is also a disadvantage that it is difficult to hold in a posture. Furthermore, this
In the welding jig device having the structure shown in FIG.
Since both the rotating members 20 are rotated by the motor 26,
There is also a disadvantage that it is difficult to rotate synchronously. Both
If the rotating member 20 cannot be rotated at an accurate angle,
The held door frame is twisted, and the door frame is highly accurate.
Cannot be assembled.

The present invention has been developed to solve this drawback. It is an important object of the present invention to provide a door frame assembling apparatus which can manufacture a door frame efficiently and simply and with less operator fatigue.

[0006]

SUMMARY OF THE INVENTION A door frame assembling apparatus according to the present invention has the following arrangement to achieve the above object. The apparatus for assembling a door frame includes a frame holding member 3 for arranging and holding the vertical frames 1a and 1b and the horizontal frame 2 in a rectangular shape, a vertical frame 1a, 1b held by the frame holding member 3, and a horizontal frame. 2 and a reversing means for reversing a door frame for rotating and holding the frame holding member 3.

Furthermore, the assembly device of the door frame, characterized by having a German resulting in the following configuration. (A) The frame holding member 3 is divided into end holding members 3A and 3B that hold the door frame at both ends. (B) The end holding members 3A and 3B are placed on the upper surface.
Position the door frame so that the corners are at right angles,
It has a clamp member 7 to be held. (C) split end holding member 3A, 3B is base 1
9, a horizontal rotating shaft 1
It is mounted so as to be rotatable about 1 and a gap is provided therebetween. (D) Rotating shaft 1 of divided end holding members 3A, 3B
1 are arranged in a straight line , and both end holding members 3
A, 3B so that the bearing supports can rotate about the axis on a straight line.
It is mounted on a pillar 18. (E) The reversing means comprises a divided end holding member 3
A synchronous inverting member 4 for rotating and inverting A and 3B in synchronization is provided, and the synchronous inverting member 4 is configured to invert a door frame that inverts and holds the end holding members 3A and 3B. (F) The bearing column 18 is provided so as to protrude above the base 19.
Have been killed. (G) The synchronous reversing member 4 includes both end holding members 3A,
Reduction motor 17 for rotating 3B, and this reduction motor
-17, the two end holding members 3A, 3B are synchronized and put together.
Built into the base 19 so that it rotates
It is extended in the direction of the strut 18 and is supported by the bearing strut 18.
Drive shaft 1 connected to both end holding members 3A, 3B
6.

[0008]

The assembling apparatus of the present invention manufactures a door frame as follows. As shown in FIG. 2 , one vertical frame 1a is set thereon so as to bridge the end holding members 3A and 3B divided on both sides. The vertical frame 1a is moved by the operator between the end holding members 3A and 3B, and the vertical frame 1a is set first. As shown in FIG. 3, the horizontal frame 2 is set on both sides of the vertical frame 1a. As shown in FIG. 4, the remaining vertical frame 1b is set.
Thereafter, the clamp members 7 of the end holding members 3A and 3B hold the vertical frames 1a and 1b and the horizontal frame 2. As shown in FIG. 5, the connecting portions of the vertical frames 1a, 1b and the horizontal frame 2 held by the end holding members 3A, 3B are welded on the upper surface of the door frame. After the welding is completed, the reversing means rotates the end holding members 3A, 3B on both sides by 180 degrees with the synchronous reversing member 4. That is, as shown in FIG. 6, the end holding members 3A and 3B divided on both sides are rotated 180 degrees by the synchronous reversing member 4, and the door frame is reversed. As shown in FIG. 7, the back surface of the inverted door frame is welded. In this state, both sides of the door frame are welded.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. However, the embodiments described below exemplify a door frame assembling apparatus for embodying the technical idea of the present invention, and the present invention does not specify the door frame assembling apparatus in the following configuration.

Further, in this specification, in order to make it easy to understand the claims, the numbers corresponding to the members shown in the embodiments are referred to as "claims", "actions", and "actions". In the column of "Means for solving the problem". However, the members shown in the claims are
It is by no means specific to the members of the embodiment.

The door frame assembling apparatus shown in FIG.
A frame holding member 3 for holding the connection portions of a and 1b and the horizontal frame 2 to be welded and connected in a rectangular shape, and a synchronous inverting means 4 for synchronously and inverting the frame holding member 3 are provided. Although not shown, the welding means for welding the connection portion of the door frame held in the square shape by the frame holding member 3 uses a welding robot which moves to the connection portion of the vertical frame and the horizontal frame and performs automatic welding. However, the present invention does not specify the welding means to the welding robot. As the welding means, a tool for an operator operating a welding machine to weld a connecting portion between a vertical frame and a horizontal frame can also be used.

The frame holding member 3 is composed of two end holding members 3A and 3B. Each of the end holding members 3A and 3B holds both ends of the door frame. The divided end holding members 3A and 3B provide a gap that allows an operator to move between the vertical frames 1a and 1b and the horizontal frame 2 when the vertical frames 1a and 1b and the horizontal frame 2 are set. Therefore, the distance (d) between the end holding members 3A and 3B is preferably designed to be wider than 50 cm.

[0013] The end holding members 3A, 3B are composed of vertical frames 1a, 1a.
b and a holder for holding the horizontal frame 2. The holder holds the vertical frames 1a and 1b and the horizontal frame 2 in a state where the welded portions are not hidden, that is, in a state where they do not hinder welding. 9 and 10 show enlarged plan views of the holder 5. The holder 5 shown in this figure holds the vertical frames 1a and 1b and the horizontal frame 2 on the inner corner member 6 by pressing them from the outside with the clamp member 7.

The corner member 6 has a right-angled surface on the outside for pressing the vertical frames 1a, 1b and the horizontal frame 2 in order to position and hold the vertical frames 1a, 1b and the horizontal frame 2 in a square shape.
The corner member 6 is located at the inner corner of the door frame and is fixed to the end holding members 3A and 3B.

The vertical frames 1a and 1b and the horizontal frame 2 are
The clamp member 7, which presses and clamps, has a pressing rod 9 connected to a hydraulic cylinder 8. Press rod 9
The end holding member 3 is connected via a linear motion bearing so that it can move in the axial direction to press the vertical frames 1a and 1b and the horizontal frame 2.
A, 3B. The pressing rod 9 presses the vertical frames 1 a and 1 b and the horizontal frame 2 against the corner member 6 at the tip. FIG. 11 shows a cross-sectional view of the vertical frame 1 a pressed by the pressing rod 9. The door frame shown in this figure is a C-shaped steel, and the pressing rod presses the position indicated by the arrow. The pressing rod for pressing this position is designed to be thick enough to be inserted inside the C-shaped steel. The pressing rod 9 has a rear end connected to the hydraulic cylinder 8. The hydraulic cylinder 8 is fixed to the end holding members 3A and 3B, and moves the pressing rod 9 in the axial direction. When attaching and detaching the door frame to and from the end holding members 3A and 3B, the hydraulic cylinder 8 retreats the pressing rod 9 to release the pinched state. When the vertical frames 1a and 1b and the horizontal frame 2 are clamped at predetermined positions, the hydraulic cylinder 8 pushes out the pressing rod 9 and clamps the corner member 6.

The door frame sandwiched between the corner member 6 and the clamp is vertically sandwiched by a sandwiching member 10 shown in FIGS. The holding member 10 is a toggle down clamp that presses the vertical frame 1b and the horizontal frame 2 from above. The toggle down clamp is fixed to the upper surface of the corner member 6,
The upper surfaces of the vertical frames 1a and 1b and the horizontal frame 2 are pressed and held at fixed positions. When detaching the vertical frames 1a, 1b and the horizontal frame 2, the toggle down clamp is opened. As described above, the holder 5 for holding the door frame with the holding member 10 includes the vertical frames 1a and 1b.
And the horizontal frame 2 can be connected without any step.

The divided end holding members 3A and 3B are synchronously rotated together by a synchronous inverting member 4 in order to invert the holding door frame up and down. FIG. 14 shows a mechanism of the synchronous reversing member 4 for rotating the two end holding members 3A and 3B together. The synchronous reversing member 4 shown in this figure includes a rotating shaft 11 fixed to two end holding members 3A and 3B.
And a sprocket 12 for driving the rotating shaft 11, a driving shaft 16 for rotating the two rotating shafts 11 together via the sprocket 12, and a deceleration motor 17 for rotating the driving shaft 16.

The rotating shafts 11 fixed to the two end holding members 3A, 3B are disposed linearly, and
It is mounted so that it can rotate at the upper end of. Rotating shaft 11
The sprocket 12 is fixed to an end protruding outside the bearing column 18. A chain 15 is hung on a sprocket 12 fixed to each rotating shaft 11. The chain 15 is put on a sprocket 13 of a drive shaft 16 to rotate the rotating shaft 11 with the drive shaft 16. The drive shaft 16 rotates the left and right rotation shafts 11 at the same angle. The sprockets 12 of the rotating shaft 11 fixed to the divided end holding members 3A and 3B have the same number of teeth.
The sprockets 13 of the drive shaft 16 for driving the respective rotating shafts 11 have the same number of teeth.

The drive shaft 16 is mounted on the base 1 via a bearing.
9 so that it can be rotated. The drive shaft 16 is located below the bearing column 18 and is arranged in parallel with the rotating shaft 11. The drive shaft 16 is also connected to the reduction motor 17 via the sprocket 14 and the chain 15. The deceleration motor 17 rotates the drive shaft 16, the drive shaft 16 rotates the rotation shaft 11, and the rotation shaft 11 rotates the end holding members 3A, 3B. The end holding members 3A and 3B turn the held door frame upside down. Therefore, the rotating shaft 11 is rotated by 180 degrees. The deceleration motor 17 rotates the rotary shaft 11 by 180 degrees and stops. The door frame assembling apparatus shown in the drawing holds the door frame horizontally by the end holding members 3A and 3B and welds the upper surface, and then turns the door frame upside down and welds the opposite surface. Therefore, the deceleration motor 17 is connected to the end holding member 3.
A and 3B are stopped in a horizontal posture. However, the assembling apparatus of the present invention does not always hold the door frame horizontally and does not perform welding. It is also possible to hold and weld the door frame in an inclined position. The end holding member that holds the door frame at an angle is stopped at a predetermined angle, the door frame is set, one side of the door frame is welded, then rotated 180 degrees and inverted, and the opposite surface is welded. .

[0020]

According to the door frame assembling apparatus of the present invention, the frame holding member for holding the door frame is divided into end holding members. The end holding member holds the vertical frame and the horizontal frame connected to each other on both sides. A gap is provided between the end holding members that hold the door frame on both sides. Therefore, the worker can enter the gap and set the vertical frame in a state of bridging the end holding member. Since the end holding member can be set by moving the gap, there is no need to set a long vertical frame around the periphery of the frame holding member as in the conventional device shown in FIG. The worker moves a short distance as shown by the arrow in FIG.
The vertical frame at the back can be set at a fixed position. This significantly reduces the distance that an operator travels with a long and heavy vertical frame, significantly improving work efficiency. In addition, it is possible to reduce the fatigue of the worker and work easily and efficiently. Therefore, the apparatus of the present invention has a feature that the vertical frame can be set easily and easily and efficiently to manufacture the door frame.

Further, in the door frame assembling apparatus of the present invention, both sides of the door frame are held by the divided end holding members, and the end holding members are rotated synchronously together by the synchronous reversing means. Because the door frame is rotated, no excessive force such as twisting is applied when the door frame is rotated, and the door frame can be welded and connected with high accuracy using a simple welding robot that welds one side of the door frame. Is also realized.

Further , the door frame assembling apparatus of the present invention is simple.
The end holding members that hold both ends of the door frame
At the same angle to prevent the door frame from twisting.
It has the feature that it can be assembled with flatness. that is,
A drive shaft incorporated in a base according to the door frame assembling apparatus of the present invention.
To the end holding members on both sides, and through this drive shaft
Because both end holders rotate synchronously together
is there. The synchronous reversing member of this mechanism is a single motor,
The feature is that both end holding members can be rotated in the same way.
You. Further, a drive shaft for rotating both end holding members
Is fixed to the bearing supporting column supporting the end holding member .
Since the drive shaft is built into the base, this drive shaft
Work efficiently, and make sure that the door frame is
Can rotate to a position suitable for welding in degrees. This means that
And the horizontal frame can be accurately and accurately connected in a plane to the door frame.
Realize extremely important features.

Further, the apparatus for assembling a door frame according to the present invention is characterized in that
Place the vertical frame and horizontal frame on the part holding member, and
Positioned in the posture, easily and easily with the clamp member,
Moreover, it has the feature that it can be held quickly. Also assembled
The door frame easily removed from the end holding member,
There is a feature that can be detached. This means that the vertical and horizontal borders
Synergy that it can be set easily with no moving distance,
Has the advantage of significantly improving the efficiency of
You.

[Brief description of the drawings]

FIG. 1 is a schematic plan view of a conventional door frame assembling apparatus.

FIG. 2 is a plan view showing a state where a vertical frame is set on an end holding member of the door frame assembling apparatus of the present invention.

FIG. 3 is a plan view showing a state where a horizontal frame is set on an end holding member of the door frame assembling apparatus according to the present invention;

FIG. 4 is a plan view showing a state where a vertical frame is set on an end holding member of the door frame assembling apparatus of the present invention.

FIG. 5 is a plan view showing a state where a connecting portion of a door frame set on the end holding member is welded.

FIG. 6 is a plan view showing a state where the door frame having one side welded is turned upside down.

FIG. 7 is a plan view showing a state where a connection portion of the inverted door frame is welded.

FIG. 8 is a plan view showing an example of a door frame assembling apparatus according to the present invention.

FIG. 9 is a plan view showing a holder for holding the door frame on the end holding member.

FIG. 10 is a plan view showing a holder for holding the door frame on the end holding member.

FIG. 11 is a cross-sectional view showing a portion where a clamp member serving as a holder of the end holding member presses the door frame.

FIG. 12 is a plan view showing a holding member that presses the surface of the door frame.

FIG. 13 is a front view of a holding member that presses the surface of the door frame.

FIG. 14 is a side view showing a synchronous reversing member for reversing the end holding member.

FIG. Perspective view of a conventional apparatus for assembling steel and the like

[Explanation of symbols]

1a, 1b ... vertical frame 2 ... horizontal frame 3 ... frame holding member 3A ... end holding member 3B ...
End holding member 4 ... Synchronizing reversing member 5 ... Holder 6 ... Corner member 7 ... Clamping member 8 ... Hydraulic cylinder 9 ... Pressing rod 10 ... Holding member 11 ... Rotary shaft 12 ... Sprocket 13 ... Sprocket 14 ... Sprocket 15 ... Chain 16 ... drive shaft 17 ... speed reduction motor 18 ... bearing struts 19 ... base 20 ... rotary member 21 ... rails 22 ... slit 23 ... gripping member 24 ... running rails 25 ... running board 26 ... hydraulic motor

Claims (1)

(57) [Claims] 1. A frame holding member (3) for arranging and holding vertical frames (1a) and (1b) and a horizontal frame (2) in a rectangular shape, and holding the frame by the frame holding member (3). Vertical frame (1a), (1b)
A feature and a welding means for welding the transverse frame (2), and a reversing means for reversing the door frame to hold and rotate the frame holding member (3), that it has a structure of the lower Symbol entire hand Door frame assembly equipment. (A) The frame holding member (3) is divided into end holding members (3A) and (3B) that hold the door frame at both ends. (B) The end holding members (3A) and (3B) are mounted on the upper surface.
Position the placed door frame at a right angle at the corner,
It has a clamp member (7) for clamping and holding. (C) Divided end holding members (3A), (3B)
A bearing post (18) fixed to the base (19)
So that it can rotate about a horizontal rotation axis (11).
And a gap is provided between them. (D) of the divided end holding members (3A) and (3B)
The rotating shaft (11) is disposed on a straight line, and has both ends.
The part holding members (3A) and (3B) rotate around a linear axis.
It is mounted on a bearing post (18) so that it can roll. (E) The reversing means includes a divided end holding member (3
A) A door frame which comprises a synchronous reversing member (4) for rotating and reversing (3) the synchronously reversing member (3B), and the synchronous reversing member (4) reversing and holding the end holding members (3A) and (3B). Are configured to be inverted. (F) The bearing post (18) projects above the base (19).
It is provided out. (G) The synchronous reversing member (4) is provided with both end holding members.
(3A), reduction motor (17) for rotating (3B)
And both end holding members by this deceleration motor (17)
So that (3A) and (3B) rotate together in synchronization,
Built into the base (19), both bearing posts (18)
Both extended in the direction and supported on bearing posts (18)
Drive shaft connected to the end holding members (3A) and (3B)
(16).