CN2625090Y

CN2625090Y - Thread-installing mechanism of line cutting electric discharge machining apparatus

Info

Publication number: CN2625090Y
Application number: CN 03222643
Authority: CN
Inventors: 邵建军
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-06-09
Filing date: 2003-06-09
Publication date: 2004-07-14
Anticipated expiration: 2013-06-09

Abstract

The utility model relates to a wire feeding mechanism for a wire cutting electrical discharge processing device, which comprises a body 20, a wire feeding wheel 16 and a wire guide pipe 17; wherein a wire guide channel 22 is arranged between the partial circumference edge of the wire feeding wheel 16 and the body 20, the lower part of the wire guide channel 22 is communicated with the wire guide pipe 17, and the top of the wire guide channel 22 is provided with an opening; the body 20 is provided with a water spray hole 18, and a water outlet 23 of the water spray hole 18 is arranged in the wire guide channel 22 of the lower part of the wire feeding wheel 16. As the water flow enters along the tangential direction of the wheel and then linearly enters the wire guide pipe, the energy dissipation of the water flow is small, which is conducive to the quick rotation of the wheel and convenient to feeding wire.

Description

The wire threading machine structure of wire-cut electric discharge machining apparatus

Technical field

The utility model relates to a kind of wire-cut electric discharge machining apparatus.

Background technology

In the prior art, the wire circuit of the silk thread of being careful cutting electric discharge device as shown in Figure 4, wire electrode all is along a fixing fortune the Silk Road line, begins to finish to being involved in waste silk case 15 from silk tube 1.When using beginning, need enter between two rollers receiving silk device 14 up to wire electrode through wearing the silk wheel again with wire electrode by manually passing each godet roller and going up head 11, following head 13.Because structural reason, the wire electrode before the following head is convenient to by hand method and is installed and wear silk, and at the later wire electrode of head down owing to need just can enter through one section long wire leading pipe 17 and receive silk device 14, therefore finish and wear relatively difficulty of silk.For addressing this problem, existing structure such as accompanying drawing 2, below following head, the top of wearing the silk wheel increases by a water jet, its effect is to rely on current will wear the silk wheel to drive and make it to rotate, thereby drives a wire electrode and enter by wire leading pipe and receive in the silk device by wearing the silk wheel.But this structure still needs the artificial auxiliary silk of wearing, reason is that current make that wearing the silk wheel rotates, the size of wearing a wheel speed can have influence on the complexity of wearing silk, by accompanying drawing 2 as can be known, the back level of current turning round from the top down flows out, current have the flow direction of 90 degree directions to change, and this turns round and can make the rotating speed of wearing the silk wheel slow down, and then cause wearing silk wheel seal wire poor effect.

Summary of the invention

The purpose of this utility model is to provide a kind of wire threading machine structure of wearing a reliable wire-cut electric discharge machining apparatus.

The technical solution of the utility model is: a kind of wire threading machine structure of wire-cut electric discharge machining apparatus, comprise body, be arranged at the wire leading pipe of wearing silk wheel, being fixedly connected with described body on the described body rotationally, described wearing between a part circumferential edges of wheel and the body is provided with silk guide passage, the bottom of this silk guide passage is connected with wire leading pipe, the open top of silk guide passage; Described body is provided with hole for water spraying, and the delivery port of this hole for water spraying is positioned at the silk guide passage of the below of wearing the silk wheel.

The utility model compared with prior art has following advantage:

Because current enter along the tangential direction of wheel, straight line enters in the wire leading pipe again, so the energy loss of current is little, helps the quick rotation of wheel, is convenient to wear silk.And because the current straight line enters wire leading pipe, current also can drive wire electrode and enter in the receipts silk device by wire leading pipe smoothly, can more help wearing finishing of silk like this.

Description of drawings

Accompanying drawing 1 is a structural representation of the present utility model;

Accompanying drawing 2 is a wire threading machine composition of the prior art;

Accompanying drawing 3 is a structure cutaway view of the present utility model;

Accompanying drawing 4 is the wire conspectus of the silk thread cutting electric discharge device of being careful; Wherein:

1, silk tube; 2, wire electrode; 3, put the silk wheel; 4, first godet roller; 5, regulating wheel; 6, second godet roller; 7, the 3rd godet roller; 8, first silk pressing wheel; 9, second silk pressing wheel; 10, straining pulley; 11, go up head; 12, workpiece; 13, following head; 14, receive silk device; 15, waste silk case; 16, first section; 17, second section; 18, the 3rd section; 19, the 4th section; 20, discharge processing district; 21, retaining silk piece; 22, seal wire inlet point; 23, swing arm; 24, turning cylinder; 25, seal wire groove;

The specific embodiment

Referring to accompanying drawing 3, a kind of wire threading machine structure of wire-cut electric discharge machining apparatus, comprise body 20, be arranged at the wire leading pipe 17 of wearing silk wheel 16, being fixedly connected with described body 20 on the described body 20 rotationally, described wearing between a part circumferential edges of wheel 16 and the body 20 is provided with silk guide passage 22, the bottom of this silk guide passage 22 is connected with wire leading pipe 17, the open top of silk guide passage 22; Described body 20 is provided with hole for water spraying 18, and the delivery port 23 of this hole for water spraying 18 is positioned at the silk guide passage 22 of the below of wearing silk wheel 16.The axial line of the axial line of described hole for water spraying 18 and wire leading pipe 17 coincides haply.The axial line of described hole for water spraying 18 coincides with the tangent line of the lower end of the seal wire groove of wearing silk wheel 16.

Claims

1, a kind of wire threading machine structure of wire-cut electric discharge machining apparatus, comprise body [20], be arranged at the wire leading pipe [17] of wearing silk wheel [16], being fixedly connected with described body [20] on the described body [20] rotationally, described wearing between a part circumferential edges of wheel [16] and the body [20] is provided with silk guide passage [22], the bottom of this silk guide passage [22] is connected with wire leading pipe [17], the open top of silk guide passage [22]; It is characterized in that: described body [20] is provided with hole for water spraying [18], and the delivery port [23] of this hole for water spraying [18] is positioned at the silk guide passage [22] of the below of wearing silk wheel [16].

2, the wire threading machine structure of wire-cut electric discharge machining apparatus according to claim 1 is characterized in that: the axial line of the axial line of described hole for water spraying [18] and wire leading pipe [17] coincides haply.

3, the wire threading machine structure of wire-cut electric discharge machining apparatus according to claim 1 is characterized in that: the axial line of described hole for water spraying [18] coincides with the tangent line of the lower end of the seal wire groove of wearing silk wheel [16].