CN2138541Y

CN2138541Y - Horizontal welding mould for steel bar in narrow space

Info

Publication number: CN2138541Y
Application number: CN 92220383
Authority: CN
Inventors: 周百先; 于荣堂; 李蔷
Original assignee: Sichuan Institute of Building Research
Current assignee: Sichuan Institute of Building Research
Priority date: 1992-09-29
Filing date: 1992-09-29
Publication date: 1993-07-21
Anticipated expiration: 2002-09-29

Abstract

The utility model relates to a clamping device for clamping a welded object at the time of welding operation, which is composed of a U-shaped welding die, V-shaped slot seats, a screw seat, and a screw rod for a stem, wherein, the V-shaped slot seats are symmetrically fixedly connected to the two ends of the U-shaped welding die, and the V-shaped slot seats and the U-shaped welding die are coaxial; the screw seat is arranged above the V-shaped slot seats. Joint ends which are connected with a reinforcing bar are arranged in the U-shaped welding die are positioned in the V-shaped slot seats, the reinforcing bar is pressed by the screw rod for a stem, and the butt joint of the reinforcing bar is easily completed on a horizontal welding station through manual electric arc welding. A joint is of good molding, guaranteed quality, and high welding efficiency.

Description

Horizontal welding mould for steel bar in narrow space

The clamping device of clamping welded article spare when the utility model relates to weld job.

The welding of horizontal reinforcement under the condition at the construction field (site), the common existing practice is generally nation's bar arc welding, groove arc welding and molten groove nation bar arc welding etc., these methods, or consume material is many, or production efficiency is low, or to solder technology require high, be difficult for support and hold, and joint is shaped greatly, is unfavorable for the colligation and the concrete pouring of stirrup.

The purpose of this utility model provides and a kind ofly can make the horizontal weld mold in the narrow gap of reinforcing bar that welding joint shaping is good, quality easily guarantees and welding efficiency is high.

The horizontal weld mold in the narrow gap of reinforcing bar of realizing the purpose of this utility model by U type weldering mould, be symmetricly set on this U type weldering two ends and with the V-type groove seat of U type weldering mould coaxial line and be arranged on the screw seat of V-type groove seat top and the turning handle screw rod that is connected in this screw seat is formed.During welding two reinforcing bars of desire butt joint are placed the V-type groove seat of coaxial line symmetry setting respectively, and make and reserve appropriate gap between the two joint end faces and stretch in U type weldering mould, rotation turning handle screw rod makes it descending and is pressed on the reinforcing bar, then can adopt the manual electric arc welding continuous welding at an easy rate, fill up the gap and two reinforcing bars are docking together.The height relationships on its V-type groove seat and U type weldering mould two bases should guarantee to make the reinforcing bar that places V-type groove seat to stretch when U type weldering mould and possess certain clearance with weldering mould base and dual-side.Adopt copper plate compacting U type weldering mould, or adopt the cathode copper founding to make U type weldering mould, utilize the fast characteristics of thermal conductivity of its copper material, can play the pressure moulding of weld metal and not bonding with reinforcing bar deposite metal effect, the while also can be played postweld heat preservation, be improved the effect of Weld Performance.

The utility model compared with prior art has the following advantages:

1, weld job is in the downhand position all the time, and specification requirement is low, not only be easy to grasp, and joint is little, forming, has reduced the stress concentration phenomenon, has promptly improved stress performance, has been beneficial to the colligation and the concrete pouring of stirrup again;

2, owing to had appropriate gap by welding steel muscle and weldering between the mould, the welding slag in welding process can be discharged from the gap voluntarily, thereby welding process can carry out continuously, needn't stop to weld scarfing cinder, makes welding efficiency than 6～8 times of traditional reinforcing bar arc welding method raisings;

3, utilize this weldering mould can adopt little energy welding, joint is difficult for overheated, has good comprehensive performances, and steady quality is reliable.

Below in conjunction with embodiment and accompanying drawing the utility model is described further.

Fig. 1 is a structural representation of the present utility model

Fig. 2 is the attached view of Fig. 1

Fig. 3 is the left view of Fig. 1

Fig. 4 is the A-A view of Fig. 1

Shown in Fig. 1～3, the utility model is made up of U type welding 1, V-type groove seat 2, screw seat 3, turning handle screw rod 4 in the present embodiment, wherein, V-type groove seat 2 is coaxially set with U type weldering mould 1, and symmetry is fixed in the two ends of U type weldering mould, for the benefit of welds the heat radiation of mould and is convenient to and change, in the present embodiment, weldering mould 1 is to be installed in the weldering die holder 6 of an irony by screw 5, by weldering die holder 6 and V-type groove seat 2 affixed (referring to Fig. 4); V-type groove seat such as can simply adopt to make at flange angle, and U type weldering mould can form as adopting the copper plate compacting by not making with the mutually not bonding material of welding molten iron, its wall thickness and radian should with adapted by welding steel muscle diameter; For ease of taking, putting by the welding steel muscle, what screw seat 3 adopted in the present embodiment is rotating screw seat, link to each other with V-type groove seat by the rotating shaft 8 that is arranged on V-type groove seat one edge of a wing 7, be connected by a locking mechanism between another edge of a wing 8 of the other end of screw seat and V-type groove seat, this locking mechanism can be made of open slot 9 and lock 10 simply.The screwhole position of screw seat is corresponding with the axis of V-type groove seat, is pressed in by on the center line of welding steel muscle when guaranteeing that the turning handle screw rod is descending.

Below V-type groove seat, set up a bearing 11, can be convenient to the placement of this mould; The side towards the weldering mould at the screw seat is provided with baffle plate 12, can prevent the infringement to the turning handle screw rod of welding slag and temperature; With screw rod 13, the spring 14 common rotating shafts that constitute the screw seat, so that regulate.

Claims

1, the horizontal weld mold in the narrow gap of reinforcing bar, it is characterized in that described weld mold by U type weldering mould, be symmetricly set on U type weldering mould two ends and with the V-type groove seat of U type weldering mould coaxial line and be arranged on the screw seat of V-type groove seat top and the turning handle screw rod that is connected in this screw seat is formed.

2, the horizontal weld mold in the narrow gap of reinforcing bar as claimed in claim 1 is characterized in that described screw seat is that the edge of a wing of an end and V-type groove seat is hinged, the screw seat of another edge of a wing snapping of the other end and V-type groove.

3, the horizontal weld mold in the narrow gap of reinforcing bar as claimed in claim 1 is characterized in that described U type weldering mould is a copper plate.