CN201020609Y

CN201020609Y - Mould type automatic feeding welding device

Info

Publication number: CN201020609Y
Application number: CNU2007200897347U
Authority: CN
Inventors: 姚磊; 杭延明
Original assignee: Nanyang Zhongnan Diamond Co Ltd
Priority date: 2007-03-20
Filing date: 2007-03-20
Publication date: 2008-02-13
Anticipated expiration: 2017-03-20

Abstract

The utility model relates to welding equipment equipped with a mould disc. Used to weld small work piece by means of automatic feed, the utility model consists of a mechanical unit for transposition of work piece and an automatic control unit, wherein, the mechanical unit is provided with a component of mould disc fixed on the top of a bracket. With one side extended out the bracket, the component of mould disc is provided with a plurality of modules for spot welding of work piece and these modules are equally arranged on the component of mould disc. At the center of the component of mould disc, a rotating shaft is positioned. Extended out the bracket, lower end of the rotating shaft is connected with a step motor through a coupling. Rotation of the step motor is controlled by a programmable logistic controller and a driver and automatic transpositions of modules can be achieved. Furthermore, accuracy of automatic transposition of module for spot welding is enhanced, consequently, welding efficiency is increased and beneficial effects of precision welding are ensured.

Description

Mould Disc Type Automatic Feed Welding Set

Technical field

The utility model belongs to the welding tooling technical field, especially for the Mould Disc Type Automatic Feed Welding Set of welding miniature workpiece.

Background technology

In technique known, welding for miniature workpiece, as weld a kind of π type workpiece, be a circle sheet and pipe before its moulding, earlier the spot welding mould be placed on the bottom electrode of mash welder during welding, put into pipe and sheet again, floor push, make the descending welding fabrication that carries out of top electrode, take off the spot welding mould from bottom electrode then, unload the workpiece behind the welding fabrication.Need two people to fit into line operate during operation, a people puts into pipe in mould, and another people puts into sheet, step floor push then, because this workpiece belongs to batch process, the quantity that produce every day is bigger, so welding frequency is higher, need repeat to put and get action repeatedly, when putting into sheet and pipe and picking and placeing the spot welding mould, the unavoidable appearance, and the industrial accident of the extreme pressure hand that occurs powering on because of two people cooperate inharmonious that inharmonious or foot-operated hand puts, not only potential safety hazard is bigger, and inefficiency.

The utility model content

The purpose of this utility model provide a kind of easy to operate, safe and reliable, and can increase substantially the Mould Disc Type Automatic Feed Welding Set of operating efficiency.

Realize that the technical scheme that the purpose of this utility model is taked is: this device is made up of machinery transposition part and automatic control section, machinery transposition part has a mould assembly, this mould assembly is fixed on the end face of support, the one side overhangs out outside the support, rotating shaft is equipped with in the centre of mould assembly, support is stretched out in the rotating shaft lower end, and connects stepper motor by shaft coupling.

Described mould assembly is to be made of two dishes up and down, last dish is rotating mould disks, lower wall is the positioning disk that is used for fixing on support, wherein, the end face circumference of mould disks is provided with a plurality of uniform workpiece spot welding moulds, the center of spot welding mould is corresponding with the axle center of spot-wedling electrode, and positioning disk is provided with the position, hole that is used to install bottom electrode.

Described mould assembly is provided with the guide cover of "  " shape structure, and the top of guide cover is a camber line shape, and covers on the top of the spot welding mould that is used to take off workpiece, and sidepiece is fixed on the support.

Automatically control section comprises: a programmable logic controller (PLC) is a master control unit, is used to accept the transposition order that numerical control unit sends, and sends instruction and give driver, the rotational angle of control step motor;

A driver is used to accept the instruction of programmable logic controller (PLC), and sends pulse signal control step motor and rotate, and the spot welding mould on the drive mould disks moves to the position of setting, the starting and stopping step pitch of control step motor simultaneously exactly.

The Mould Disc Type Automatic Feed Welding Set of making according to such scheme; owing in the mould assembly, adopted the stepper motor of automatic control to drive; can realize the automatic transposition of a plurality of spot welding moulds; and can improve the accuracy of spot welding mould transposition, reach the beneficial effect that improves welding efficiency and guarantee welding precision.Compared with prior art, the utlity model has advantages such as accurate, easy to operate, the safety of transposition, reliable in action are strong.Can save manpower and artificial adjustment time, increase substantially operating efficiency.

Description of drawings

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

Fig. 2 is the station schematic diagram of mould disks spot welding mould;

Fig. 3 is the structural representation of guide cover;

Fig. 4 is a circuit control block diagram of the present utility model.

The specific embodiment

Referring to Fig. 1, Fig. 2, Fig. 3, Mould Disc Type Automatic Feed Welding Set of the present utility model is made up of support 7, mould assembly, spot welding mould 2 and automatic control section, and wherein the mould assembly is fixed on the end face of support 7, and a side of mould assembly overhangs out outside the support 7.This mould assembly is to be made of two parts up and down, and top is rotating mould disks 5, evenly is laid with a plurality of workpiece spot welding moulds 2 on the end face circumference of dish, and the center of spot welding mould 2 is corresponding with the axle center of the upper/lower electrode of mash welder 1,3; The bottom is the positioning disk 6 that is used for fixing on support 7, and this dish is provided with the position, hole that is used to install bottom electrode 3.Rotating shaft 4 is equipped with by bearing in centre at the mould assembly, and support 7 is stretched out in the lower end of rotating shaft 4, and connects stepper motor 9 by shaft coupling 8.Also be provided with a guide cover 10 on the mould assembly, employing "  " the shape structure of this guide cover 10 of (see figure 3), the top is a camber line shape, and covers in the top of the spot welding mould 2 that is used to take off workpiece, sidepiece is fixed on the support 7.The effect that guide cover 10 is set is to prevent to hurt sb.'s feelings after workpiece from being blown out by gas from spot welding mould 2, and the workpiece that is blown can be derived along the camber line of guide cover 10.

Referring to Fig. 4, realize that the automatic control section that the spot welding mould accurately replaces on the mold turn-table is by programmable logic controller (PLC), driver is formed, and wherein, programmable logic controller (PLC) is a master control unit, after it receives the transposition order of numerical control unit, send instruction and give driver, be used for the rotational angle of control step motor, send pulse signal control step motor simultaneously and rotate, spot welding mould on the drive mould disks moves to the position of setting exactly, and the starting and stopping step pitch of control step motor.Connect by lead between controller and driver, the motor.

Operation principle: send action command by numerical control unit, after Programmable Logic Controller receives action command, send instruction and give driver, and send pulse signal by driver and drive stepper motor 9, by stepper motor 9 through shaft coupling 8, rotating shaft 4 drives the mould disks 5 with several spot welding moulds 2 that are uniformly distributed along the circumference and rotates, turn to the upper/lower electrode 1 of bonding machine when each spot welding mould 2, in the time of between 3, sending signal by numerical control unit stops operating stepper motor 9, and send signal and make top electrode 1 descending the welding, it is up that welding back top electrode 1 leaves workpiece, finishes the welding fabrication of a workpiece.When the workpiece after the welding rotated arrival station 2-3 with mould disks 5, (referring to Fig. 2) can utilize compressed air will weld good workpiece by the appendix of tipping and blow out the workpiece Turnover Box below guide cover 10 falls into support 7.Operating personnel's operating position can be at the right part of station 2-6, two hands are held sheet stock to be welded and pipe material respectively, and material is seated on the spot welding mould of station 2-4,2-5,2-6,2-7,2-8,2-9,2-10, station 2-3 is a discharge position, station 2-1 is the welding position.Only need in the use spot welding mould 2 is preestablished, by simple numerical control operating, send instruction by controller and give driver, driver sends pulse signal control step motor 9 and rotates, stepper motor 9 drives mould disks 5 and rotates according to the position of setting, spot welding mould 2 on the mould disks 5 can be put in place accurately, realize the welding of workpiece.

Claims

1. a Mould Disc Type Automatic Feed Welding Set is characterized in that; This device is made up of machinery transposition part and automatic control section, it is characterized in that:

A) machinery transposition part has a mould assembly, and the mould assembly is fixed on the end face of support, and the one side overhangs out outside the support, and rotating shaft is equipped with in the centre of mould assembly, and support is stretched out in the rotating shaft lower end, and connects stepper motor by shaft coupling.

B) control section comprises automatically: a programmable logic controller (PLC) is a master control unit, is used to accept the transposition order that numerical control unit sends, and sends instruction and give driver, the rotational angle of control step motor;

2. Mould Disc Type Automatic Feed Welding Set according to claim 1, it is characterized in that: described mould assembly is to be made of two dishes up and down, last dish is rotating mould disks, lower wall is the positioning disk that is used for fixing on support, wherein, the end face circumference of mould disks is provided with a plurality of uniform workpiece spot welding moulds, and the center of spot welding mould is corresponding with the axle center of spot-wedling electrode, and positioning disk is provided with the position, hole that is used to install bottom electrode.

3. Mould Disc Type Automatic Feed Welding Set according to claim 1, it is characterized in that: described mould assembly is provided with the guide cover of "  " shape structure, the top of guide cover is a camber line shape, and covers on the top of the spot welding mould that is used to take off workpiece, and sidepiece is fixed on the support.