JP2540231Y2 - Non-consumable nozzle type electroslag welding equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

[Industrial application field] The present invention relates to a non-consumable nozzle type element.
It relates to the improvement of the cross slag welding equipment.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 2, a non-consumable nozzle type electroslag welding apparatus of this type is mounted on a gantry 1 suspended on a bridge so as to be movable with respect to two parallel guide rails (not shown). A pedestal 3 is provided so as to be able to move up and down via a cylinder 2 suspended therefrom. The welding wire is accommodated in a wire pail 5 above an arm 4 suspended from the pedestal 3 and guided by a welding wire guide 6. The welding wire is passed between the wire feeding mechanism 7 and the non-consumable nozzle 9 in a vertical position inserted into a nozzle elevating mechanism 8 disposed on one side of the pedestal 3. They are connected by a conduit liner 10 that guides the insertion. In the figure, reference numeral 11 denotes a power cable. (For example, Japanese Utility Model Application Laid-Open No. 60-1609)
No. 83)

[0003]

[Problems to be Solved by the Invention] The above-mentioned conventional non-consumable nozzle type electroslag welding apparatus has the following problems. (A) As the non-consumable nozzle 9 rises, the weight of the non-consumable nozzle 9, the conduit liner 10, the power cable 11, and the like, and the irregular bending action of the conduit liner 10 are applied to the nozzle elevating mechanism 8. Nozzle 9
Misalignment occurs during ascending welding, which results in poor penetration and welding stoppage. (B) The feeding of the welding wire is deteriorated due to the irregular bending of the conduit liner 10, and the welding wire is bent and the feeding is stopped, which may cause interruption of welding. (C) The nozzle elevating mechanism 8 may be overloaded and break down.

An object of the present invention is to perform efficient electroslag welding without interruption of welding by facilitating the feeding of a welding wire and the elevation of a non-consumable nozzle.

[0005]

SUMMARY OF THE INVENTION The above object is achieved by a horizontal movement.
Provide a pedestal that can be raised and lowered on a possible pedestal, and hang on the pedestal.
If a welding wire feed mechanism is provided above the arm
Both the wire feeding mechanism and the nose
Between the vertical nozzle and the non-consumable nozzle in the vertical position
A conduit liner for guiding the welding wire through
Non-consumable nozzle type electroslag welding equipment connected by
In the position, the upper end of the arm is supported in an upwardly inclined posture.
Attach an arm, and at the tip of this support arm,
Elongated guide hole for guiding conduit liner
Provide a vertical anti-vibration frame, while above the gantry
Attach a hanging device in the middle of the conduit liner at the site
And pulleys at the top of the support arm and at the end of the arm.
A wire with a weight suspended at one end from both pulleys
While hanging the rope, connect the other end of the wire rope
Securely connected to the hanging tool, and on top of the support arm
The installation position of the provided pulley should be lower than the conduit
Align the center axis of the liner with the center axis of the non-consumable nozzle.
It is more accomplished that has been positioned so as to be uniaxial line.

[0006]

The vertical position of a part of the conduit liner is always maintained along the same axis as the non-consumable nozzle by the lifting urging means, and the load on the nozzle elevating mechanism of the conduit liner, the non-consumable nozzle, and the power cable is reduced. I'm sullen. There is no misalignment at the time of ascending welding of the non-consumable nozzle, and good electroslag welding can be performed. Also,
The feeding of the welding wire is smoothed and there is no welding interruption.

[0007]

Next, the details of the embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view of the welding device of the present invention.

Reference numeral 21 denotes a rolling wheel 21a suspended from a bridge so as to be movable with respect to two parallel guide rails (not shown) in a horizontal posture.
The A frame having a top, the cross-platform 21, the base 23 via a cylinder 22 which is suspended in this gantry 21 is lifting adjustably suspended. The elevation adjustment of the pedestal 23
This is done according to the size of the box column to be welded. On the pedestal 23, an arm 24 which protrudes greatly above the gantry 21 is vertically suspended, and the upper part of the arm 24 is formed to be bent in a horizontal shape and a welding wire is attached to the upper end of the arm 24. A feeding mechanism 26 for a welding wire (not shown) guided by a guide 25 is additionally provided. The welding wire is housed in a wire pail 27 mounted and supported on the gantry 21 so as to be able to be pulled out.
In the figure, reference numeral 23a denotes a guide rod which is suspended from the pedestal 23 and penetrates the gantry 21. On one side of the pedestal 23, a nozzle elevating mechanism 29 provided with a motor 28 is provided. The nozzle elevating mechanism 29 has a non-consumable nozzle 30 in a vertical posture.
To be able to move up and down. The wire feed mechanism 26 and the upper end of the non-consumable nozzle 30 are connected by a flexible conduit liner 31, and the welding wire fed out from the wire feed mechanism 26 is inserted into the conduit liner 31. While being guided, the front end is exposed from the lower end of the non-consumable nozzle 30 through the non-consumable nozzle 30. In the figure, reference numeral 32 denotes a power cable, and reference numerals 33 and 34 denote illumination lights.

At the upper end of the arm 24, a support arm 35 having an upwardly inclined posture is attached.
At the front end of the frame 5, an elongated guide hole 36 is formed, and the conduit liner 31 is inserted and guided to prevent the conduit liner 31 from oscillating.
7 is provided. On the other hand, above the gantry 21
A hanger 38 is attached to a middle part of a certain conduit liner 31, and pulleys 39 and 40 are provided at a lower upper portion of the support arm 35 and a tip of the arm 24. 41
Is a wire rope having a weight 42 suspended at one end, and the wire rope 41 is wound around the pulleys 39 and 40 to connect the other end of the wire rope 41 to the conduit liner 31.
To the hanging member 38 provided in the middle of the above. Also, the mounting position of the pulley 39 provided on the upper part of the support arm 35 is as follows.
Positioning is performed so that the central axis of the conduit liner 31 lower than the hanging tool 38 is on the central axis of the non-consumable nozzle 30. In the figure, reference numeral 43 denotes a weight guide.

[0010]

Next, the operation of the above embodiment will be described. A box column (not shown) is provided along the movement line of the gantry 21, and an electroslag welding portion between a flange forming the box column and the periphery of the diaphragm is adjusted below the non-consumable nozzle 30. Then, the nozzle elevating mechanism 29 is driven by the motor 28, and the weight 4
The non-consumable nozzle 30 is lowered to the bottom of the groove-shaped space formed between the flange and the diaphragm against the load of No. 2. Next, the non-consumable nozzle 30 is gradually raised while feeding and sequentially feeding out the welding wire, and electroslag welding is performed up to the upper part of the groove-shaped space. When the non-consumable nozzle 30 descends, the wire rope 41
The weight 42 rises through this, and by the action of the weight 42, the conduit liner 31 below the suspending tool 38 maintains the vertical posture, and the conduit liner 31 above the suspending tool 38 is elongated in the anti-sway frame 37. Guide hole 36
It descends inside and its swing is prevented. When the non-consumable nozzle 30 rises, the weight 42 is lowered and accommodated in the weight guide 43 via the wire rope 41 by the operation opposite to the above operation, and the conduit liner 31 higher than the suspending tool 38 is prevented from swaying. It rises along the elongated guide hole 36 of the frame 37 and its run-out is prevented.

[0011]

[Effect of the Invention] As described above, according to the configuration of the present invention,
The following effects can be obtained. (A) A non-consumable nozzle type electric element that can prevent eccentricity rationally because slack of the conduit liner does not affect the non-consumable nozzle, and does not cause poor penetration or stop of welding
A toros slag welding device can be provided . (B) The penetration width is stable, and good electroslag welding is obtained. (C) Since the feeding of the welding wire is performed smoothly without difficulty, the welding current and voltage are stabilized, and the interruption of welding can be rationally prevented. (D) The failure of the nozzle elevating mechanism is not excessive and the number of failures is extremely small.

[Brief description of the drawings]

FIG. 1 is a front view of the welding device of the present invention.

FIG. 2 is a front view of a conventional welding device.

[Explanation of symbols]

 21 Mount 22 Cylinder 23 Pedestal 24 Arm 25 Welding Wire Guide 26 Wire Feeding Mechanism 27 Wire Pale 28 Motor 29 Nozzle Elevating Mechanism 30 Non-consumable Nozzle 31 Conduit Liner 32 Power Cable 35 Support Arm 36 Slender Guide Hole 37 Sway Prevention Frame 38 Hanging Tool 39 pulley 40 pulley 41 wire rope 42 weight 43 weight guide

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Showa 50-24718 (JP, U) Japanese Utility Model Showa 58-36448 (JP, Y2)

Claims (1)

(57) [Scope of request for utility model registration] A pedestal that can be moved up and down is provided on a horizontally movable pedestal, a welding wire feeding mechanism is provided above an arm vertically suspended on the pedestal, and a welding wire feeding mechanism is provided on the pedestal. A non-consumable nozzle type air connected to a non-consumable nozzle in a vertical position attached to a nozzle elevating mechanism to be provided by a conduit liner for guiding the welding wire through.
In a reclos slag welding device, a support arm having an upwardly inclined posture is attached to an upper end of the arm.
And a conduit at the end of this support arm.
Vertical posture vibration with elongated guide holes to guide the inner insertion
A frame is provided to prevent
Attach a hanging device in the middle of the conduit liner, and
Pulleys are provided at the top of the arm and at the end of the arm, respectively.
Hang a wire rope on one end with a weight
Turn the wire rope and attach the other end of the wire rope to the hanging
The pulley attached to the upper part of the support arm
Install in the conduit liner below the lifting device.
The central axis and the central axis of the non-consumable nozzle are the same axis
Non-consumable nozzle-type element characterized by positioning
Cross slag welding equipment.