CN201291335Y

CN201291335Y - Roller electric electricity feeding device

Info

Publication number: CN201291335Y
Application number: CNU200820118406XU
Authority: CN
Inventors: 刘芳军; 雷建华; 张富强; 张元彪
Original assignee: NINGHUA TECH Co Ltd BEIJING
Current assignee: NINGHUA TECH Co Ltd BEIJING
Priority date: 2008-06-06
Filing date: 2008-06-06
Publication date: 2009-08-19
Anticipated expiration: 2018-06-06

Abstract

The utility model relates to a novel roller charging device for a linear cutting machine. The device comprises a roller component, a roller component seat, a carbon brush component, an adjustment mechanism, a connecting plate and the like. The roller component comprises a roller, a bearing and the like and is arranged in the roller component seat, and the position of a roller can be adjusted by the adjustment mechanism. The carbon brush component comprises a carbon brush, a spring and the like; the carbon brush is closely contacted with the big end surface of the roller by the spring, and the electrification carbon brush transmits electricity to a work molybdenum wire by the roller. The charging device is arranged on the linear cutting machine by the connecting plate. The charging device has the advantages that: 1. as the electricity is charged by the rolling of the roller, compared with the friction between the original molybdenum wire and a fixed conducting block, the friction between the molybdenum wire and the roller is reduced greatly, thereby prolonging the service life of the conducting body; 2. the electricity is charged in a way that the carbon brush is closely contacted with the rotating roller by the spring, thereby ensuring the steady charging current. In addition, the carbon brush and the roller have the larger contact area, and the contact position is in the big end surface of the roller near the molybdenum wire, thereby ensuring the heavier charging current.

Description

Roller advances electrical equipment

Technical field

The utility model relates to the electrical process machine field, is mainly concerned with wire cutting machine tool in the electric machining industry in cutting during aluminium, and a kind of roller of developing for the wearing and tearing that reduce electricity-supply device advances electrical equipment.

Background technology

A unsolved always hang-up since the electric machining industry midium or long term: during wire cutting machine tool cutting aluminium, form the superhard material-aluminium oxide of one deck owing to cut aluminium exoelectrical reaction meeting at surface of molybdenum wire under, make the electricity-supplying piece groove that weares and teares extremely easily, to change one time electricity-supplying piece in average 1 hour, the frequent replacing of electricity-supplying piece, increased the cost of electricity-supplying piece, had a strong impact on normally carrying out of cutting, also often made processing work occur damaging even scrapping.For solving this common hang-up, wire cutting machine tool manufacturer is also studying always and how to solve at present, existing method one is to adopt the silk tube to advance the way of electricity, but because silk tube position is too far away apart from point of discharge, the transmission of electricity electric energy is little, working (machining) efficiency reduces greatly, also goes out the situation of wire drawing, fracture of wire easily; Method two is to advance electricity at the guide wheel place, and the original design of guide wheel is the guiding that is used for molybdenum filament, adds into after the electric work energy, causing discharge sparking between molybdenum filament and the guide wheel easily, has damaged the guiding accuracy of guide wheel.

The defective that the design people exists in view of above-mentioned known configurations according to relevant practical experience for many years, is that the design research and development are improved then, after research with great concentration, has overcome above-mentioned defective finally, has finished the utility model.

Summary of the invention

When the purpose of this utility model is wire cutting machine tool cutting aluminium, for it provides a kind of electricity-supply device that can reduce to rub, in order to the frequent replacing that reduces electricity-supplying piece and the wearing and tearing of molybdenum filament, thereby solved the problem that the electricity-supplying piece loss is big, cutting efficiency is low of aluminium.

The purpose of this utility model is achieved in that roller advances electrical equipment, and it comprises parts such as roll wheel assembly, roll wheel assembly seat, carbon brush component, guiding mechanism, fixed connecting plate.Roll wheel assembly is made of roller, bearing, insulation sleeve, lubricated part etc., it is installed in the roll wheel assembly seat, make roller position move left and right by guiding mechanism, adjust the position of roller when being used to install according to the path of molybdenum filament, charged carbon brush is transmitted electricity to the work molybdenum filament by roller.Carbon brush component comprises formations such as carbon brush, copper sheathing, spring, insulation sleeve, carbon brush contacts by spring compression with the roller large end face, and make it reach suitable thrust by guiding mechanism, after carbon brush uses the regular hour wearing and tearing, can make the feeding of carbon brush way roller direction by guiding mechanism, to keep suitable thrust, the carbon brush other end connects power transmission line.The effect of fixed connecting plate be advance electrical equipment be installed in wire cutting machine tool up and down the silk arm on, chute is arranged above it, can the up-down adjustment position.So just realized that roller advances electrical equipment and can reduce to rub and can advance electric specific function.

As a kind of improvement, the size of roller and roll wheel assembly thereof, shape, structure etc. can change, can be with arc surface etc. such as the section shape of roller groove.

As a kind of improvement, the size of carbon brush and carbon brush component thereof, shape, structure etc. can change, to adapt to different lathes and the different electric demands of advancing.

As a kind of improvement, also can increase and change the additional function that advances electrical equipment, such as the guiding mechanism of roll wheel assembly and carbon brush, make every adjustment more convenient to operate, perfect.

As a kind of improvement, the size of its fixed connecting plate, shape, structure, connected mode etc. can change, to adapt on the wire cutting machine tool that is fixed on different model and structure.

As a kind of improvement, but 2 or 2 of design and installations are advanced electrical equipment with upper roller on every wire cutting machine tool, respectively install one such as a silk arm up and down, further strengthen and advance electric effect.

The utility model has adopted above structural design, has realized reducing the purpose of electricity-supplying piece wearing and tearing, has improved the lathe cutting efficiency, has prolonged the life cycle of electricity-supply device.

Description of drawings

Accompanying drawing 1 is the embodiment schematic diagram that the utility model roller advances electrical equipment.

Accompanying drawing 2 is that the utility model roller advances the schematic diagram of appliance applications on wire cutting machine tool.

The specific embodiment

Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing, thus make the technical problems to be solved in the utility model, feature and the technique effect that reached more cheer and bright.

As shown in Figure 1, roller advances electrical equipment and is made up of roll wheel assembly, roll wheel assembly seat 3, carbon brush component, guiding mechanism, fixed connecting plate 1 etc.Roller 7 is contained on the insulation sleeve 6 by bearing 5, form roll wheel assembly and be contained on the roll wheel assembly seat 3, roll wheel assembly seat 3 installs on the fixed connecting plate 1 by the screw connection, when roll wheel assembly seat 3 maintains static, roller 7 can be by bearing 5 around the roller axial rotation, in order to adjust the tightness of molybdenum filament.Roller is adjusted support 2 and is contained on the fixed connecting plate 1 with thread forms, and threaded adjustment post 4 can rotate and travel forward, and adjusts the position, the left and right sides of roller; Carbon brush support 8 is contained on the carbon brush support 13 by screw, carbon brush 12 advances electricity by lead 10 from the external world, and insulation sleeve 11 is in order to isolate conducting of carbon brush 12 and carbon brush support 8, and spring 9 is in order to compress carbon brush 12 and roller 7, make that into good the and roller 7 of electricity can axial rotation, carry out to-and-fro thread.

As shown in Figure 2, fortune silk tube 15 drives molybdenum filaments 17 and moves back and forth, and the pulse power 21 advances electrical equipment 16 for workpiece 20 and roller discharge power supply is provided, and upper block 19 and lower tumbler 18 provide guiding to molybdenum filament.Roller advances V-shaped groove that electrical equipment 16 provides to the effect of molybdenum filament with guiding; The use of roller has become rolling friction with sliding friction in the past, has reduced the wearing and tearing of electricity-supply device and the loss of molybdenum filament; The employing of guiding mechanism makes that into the position of electrical equipment can be adjusted at any time, has improved the precision of processing and has advanced electric stability.

Though the utility model discloses with a specific embodiment; but it is not in order to limit the utility model; any those skilled in the art; under the prerequisite that does not break away from design of the present utility model and scope; also can make various variations and modification, therefore protection domain of the present utility model is as the criterion with the scope that claim was defined.

Claims

1. roller advances electrical equipment, it is characterized in that: described roller advances electrical equipment and is made up of roll wheel assembly, roll wheel assembly seat, carbon brush component, guiding mechanism, fixedly connected plate portion; Roller is contained on the insulation sleeve by bearing, constitutes roll wheel assembly and is installed on the roll wheel assembly seat, and roller can rotate around axis by bearing; The roll wheel assembly seat installs on the fixed connecting plate by the screw connection, and roller is adjusted support and is contained on the fixed connecting plate with thread forms, and threaded adjustment post can rotate the position, the left and right sides that roller is adjusted in also side-to-side movement; The carbon brush carrier base is contained on the carbon brush support by screw, and spring is in order to compress carbon brush and roller, makes that into good the and roller of electricity can axially-movable.