KR101882238B1 - Automatic cleaning electric main spindle structure - Google Patents

Abstract

The present invention relates to a self-cleaning electric rotating spindle structure, comprising: a spindle; One electrically conductive sleeve set sandwiched between the main shafts and having two electrically conductive rings; Wherein the carbon brush annular base is fitted to the outside of the electrically conductive sleeve set and is spaced apart from the electrically conductive sleeve set by a predetermined distance and the outer circumferential surface of the carbon brush annular base Wherein the two carbon brush components are radially arranged in the carbon brush storage hole of the annular base of the carbon brush in a radial direction of the carbon brush, and the radially extending carbon brush storage holes and the radially- And a plurality of electric conduction rings each having one end contacted with each of the electrically conductive rings of the set of electrically conductive sleeves, and external power is introduced into the electrically conductive ring through the carbon brush component, and an external gas is introduced into the electrically conductive ring via the carbon brush The component and the electrically conductive ring This single electrical supply sleeve to the incoming set; And a control unit. Through this, it is possible to remove carbon deposits and lower the temperature.

Description

[0001] The present invention relates to an automatic cleaning electric main spindle structure,

The present invention relates to an electric rotating spindle, and more particularly, to a self-cleaning electric rotating spindle structure.

The electric rotary spindle has two main functions, high-speed rotation and power transmission. Accordingly, the ultrasonic knife connected to the electric rotary spindle synchronizes and rotates along the electric rotary spindle, thereby cutting the workpiece. Further, by vibrating at high frequency through the electric power transmitted by the electric rotary spindle, the cutting efficiency is improved, The wear that occurs during the process can be reduced.

However, in the conventional electric rotary spindle, external electric power is introduced into the coin by the carbon brush on the carbon brush base, and electric power is transmitted through the coin to the ultrasonic wave Deliver it with a knife. However, the friction between the carbon brush and the coin causes abrasion, the abrasion of the carbon brush generates carbon powder, and the carbon powder is deposited on the carbon brush and the coin brush. And the effect of the ultrasonic knife is lost. In addition, the friction between the carbon brush and the coils forms a heat source, resulting in a reduction in the electric conductivity.

In view of the above problems, in order to solve the problem that the carbon is easily deposited on the electric rotary spindle according to the prior art, the electric conductivity is lowered, and a phenomenon such as short-circuiting electrostatic charge and high heat is generated. One electrically conductive sleeve set sandwiched between the main shafts and having two electrically conductive rings; Wherein the carbon brush annular base is fitted to the outside of the electrically conductive sleeve set and is spaced apart from the electrically conductive sleeve set by a predetermined distance and the outer circumferential surface of the carbon brush annular base Wherein the two carbon brush components are radially arranged in the carbon brush storage hole of the annular base of the carbon brush in a radial direction of the carbon brush, and the radially extending carbon brush storage holes and the radially- And a plurality of electric conduction rings each having one end contacted with each of the electrically conductive rings of the set of electrically conductive sleeves, and external power is introduced into the electrically conductive ring through the carbon brush component, and an external gas is introduced into the electrically conductive ring via the carbon brush The component and the electrically conductive ring This single electrical supply sleeve to the incoming set; And an automatic washing-type electric rotating spindle structure including the electric rotating spindle.

In the self-cleaning electric rotary spindle structure, the main shaft includes one main shaft lever, one coupler and one main shaft sleeve; The coupler is connected to one end of the spindle lever to rotate the spindle lever to rotate by transmitting rotational power to the spindle lever, and the spindle sleeve is fitted outside the other end of the spindle lever; The electrically conductive sleeve set is fitted to the main shaft lever.

In the automatic washing type electric rotary spindle structure, two through holes are opened in a radial direction of the main shaft, two wire guide holes are formed in an axial direction of the main shaft, And two main shaft electrical conductive contacts are provided on the outer circumferential surface of the main shaft; Wherein one end of each of the two electrically conductive wires is connected to each of the electrically conductive rings and the other end of the electrically conductive sleeve is passed through a through hole and a wire guide hole at corresponding positions, It is connected to two main shaft electrical conducting contacts.

In the self-cleaning electric rotary spindle structure, the electrically conductive sleeve set may further comprise one bushing, one insulating sleeve and one contact ring; Wherein the insulating sleeve is fitted to the outer circumferential surface of the bushing and the electric conduction ring is fitted to the outer circumferential surface of the insulating sleeve in a state in which the electric conduction ring is spaced apart from the outer circumferential surface of the insulating sleeve in a state in which the electrically conductive ring is in contact with the inner circumferential surface of the bushing, And is tightly engaged with the main shaft by the close contact ring.

In the self-cleaning electric rotating spindle structure, the electrically conductive sleeve set further comprises two electrically conductive wires; Wherein two bushing wire guide holes are formed in the axial direction of the bushing and two insulating sleeve wire guide holes are formed in the axial direction of the insulation sleeve so that one ends of the two electric conductive wires are respectively connected to the respective electric conductive rings And the other ends of the two electrically conductive wires are drawn along the insulated sleeve wire guide holes and the bushing wire guide holes at the corresponding positions, respectively.

In the self-cleaning electric rotating spindle structure, the electrically conductive sleeve set may further comprise a pressing lid and a slight locking unit; A small lid locking hole and two press lid wire guide holes are formed in the axial direction of the pressing lid; A small bushing locking hole is formed in the axial direction of the bushing; Wherein the locking unit is inserted into a bushing locking hole of a bushing and a bushing locking hole of the bushing to lock the bushing and the bushing lid, the bushing lid being in contact with the urging ring to urge the urging ring; The pressed lid wire guide hole allows the electrically conductive wire to pass through.

Wherein the electrically conductive sleeve set further includes two insulating rings, two insulating ring wire guide holes are formed in an axial direction of the insulating rings, And the two insulated ring wire guide holes allow the respective electrically conductive wires to pass therethrough. The insulated ring of the insulated ring guide wire is inserted into the upper major surface of the bushing and is in contact with the outer ends of the respective electrically conductive rings.

In the self-cleaning type electric rotary spindle structure, one annular blocking ring portion is formed on the outer circumferential surface of the insulating sleeve, and the two electric conductive rings are blocked by the blocking ring portion.

In the automatic washing type electric rotary spindle structure, one annular flange is provided at the tip of the bushing, and the bushing locking hole and the bushing wire guide hole are installed in the annular flange, Wherein the annular flange and the detent nut secure the insulation sleeve, the electrically conductive ring and the insulating ring to the bushing.

In the self-cleaning electric rotary spindle structure, it is further comprised of one fixing base, and the carbon brush annular base is fixed to the fixing base.

Wherein the electric supply sleeve set further comprises one air injection connector, the air injection connector is installed in the air injection hole of the carbon brush annular base, and one of the outer And is connected to a gas source.

Wherein said carbon brush component of said electrical supply sleeve set comprises a graphite rod, a carbon brush connector and a spring, said graphite rod being connected to said carbon brush annular base And the carbon brush connector is locked to the outside of the carbon brush storage hole, and the spring is connected to the electric conductive ring, And a contact between the carbon brush connector to provide an elastic force to cause the graphite rod to move in the direction of the electrically conductive ring.

The present invention contemplates the use of air injected by a set of electrical supply sleeves to perform cleaning of the deposited carbon while at the same time cooling the carbon brush component and the electrically conductive ring using the air to be injected, It is possible to prevent the phenomenon that the electric conductivity is lowered.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a three-dimensional exploded view according to a preferred embodiment of the present invention; Fig.
2 is an exploded view of main parts of the embodiment shown in Fig.
3 is a partial cross-sectional view of the embodiment shown in FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings so that the examiner can understand and appreciate the features and advantages of the present invention in more detail.

1 to 3, a self-cleaning type electric rotary spindle structure 100 according to a preferred embodiment of the present invention includes a main shaft 10, an electric conductive sleeve set 20, And a supply sleeve set 30,

1 to 3, the main shaft 10 includes a main shaft lever 11, a coupler 12, a fixed base 13, and a main shaft sleeve 14, do. Two through holes 111 are formed in the radial direction of the main shaft lever 11 and wire guide holes 112 are formed in the axial direction of the main shaft lever 11, And the coupler 12 is connected to one end (tip end) of the main shaft lever 11 so as to be assembled to the power output (not shown) of one motor, And the main shaft lever 11 is rotated to drive the main shaft lever 11 so that the main shaft lever 11 rotates and the fixing base 13 is connected to the main body of the main shaft (Distal end) of the main shaft lever 11. The main shaft 10 is, for example, a main shaft of a machine such as a drilling machine, a milling machine, a grinding machine, a lathe machine, a gantry machine, and the like.

1 to 3, the electrically conductive sleeve set 20 includes one bushing 21, one insulating sleeve 22, two electrical conducting rings 23, two insulating rings 24, One locking lid 25, one pressing lid 26, a few locking units 27, one detent nut 28 and two electrically conductive wires 29. As shown in Fig. An annular flange 210 is provided at the tip of the bushing 21 and a small bushing locking hole 211 and two bushing wire guide holes 212 are formed in the axial direction of the annular flange 210; The insulation sleeve 22 is fitted to the outer peripheral surface of the middle portion of the bushing 21 and two insulation sleeve wire guide holes 221 are formed in the axial direction of the insulation sleeve 22, An annular blocking ring portion 222 is formed to protrude therefrom; The two electrically conductive rings 23 are fitted to the outer circumferential surface of the insulating sleeve 22 and are spaced apart by the blocking ring portion 222, Two insulating ring wire guide holes 241 are formed in the axial direction of each insulating ring 24 and the two insulating rings 24 are fitted to the outer peripheral surface of the bushing 21, Contacts the outer end of the conductive ring 23, and the upper insulating ring 24 supports the annular flange 210; The contact ring 25 contacts the inner circumferential surface of the bushing 21 and approaches the tip of the bushing 21; A slight pressing lid locking hole 261 and two pressing lid wire guiding holes 262 are formed in the axial direction of the pressing lid 26; The locking unit 27 is a bolt and is inserted into a locking lid locking hole 261 of the pressing lid 26 and a bushing locking hole 211 of the bushing 21 to press the pressing lid 26 and the bushing 21 And the contact lid 26 and the contact ring 25 are brought into contact with each other; The detent nut 28 is locked at the distal end of the bushing 21 and supports the lower insulation ring 24 so that the insulation sleeve 24, the electrically conductive ring 23, 21); One end of each of the two electrically conductive wires 29 is fixedly connected (welded) to each of the electrically conductive rings 23 and the other ends of the two electrically conductive wires 29 are sequentially connected to an insulating sleeve wire Is guided along the pressed lid wire guide hole 262 via the guide hole 221, the insulating ring wire guide hole 241 and the bushing wire guide hole 212.

The electric conductive sleeve set 20 is formed such that the bushing 21 is fitted to the main shaft lever 11 of the main shaft 10 and then the pressing lid 26 is pressed through the locking unit 27, (25) to be fixedly coupled to the main shaft lever (11) of the main shaft (10). The electric conductive wires 29 drawn out from the two pressed lid wire guide holes 262 are sequentially passed through the through holes 111 and the wire guide holes 112 at corresponding positions on the main shaft lever 11 Respectively, to the two spindle electrically conductive contacts 113 on the main shaft lever 11.

1 to 3, the electric supply sleeve set 30 includes a carbon brush annular base 31, two carbon brush components 31, and one air injection connector 33. The carbon brush annular base 31 is fitted outside the set of electrically conductive sleeves 20 and is fixed to a fixed base 13. A gap is formed between the carbon brush annular base 31 and the electrically conductive sleeve set 20 at regular intervals And two radially extending carbon brush storage holes 311 are formed on one side of the outer circumferential surface of the carbon brush annular base 31. The other side of the outer circumferential surface of the carbon brush annular base 31 is provided with one radial direction And the two carbon brush components 32 are installed inside the carbon brush storage hole 311 of the carbon brush annular base 31 along the radial direction, Are each brought into contact with respective conductive rings (23) of the set of electrically conductive sleeves (20) to introduce external power into the electrically conductive rings (32) by the carbon brush component The air jet connector 33 is connected to insert into the air injection hole 312 of the carbon brush of the annular base 31 and is connected to one external gas source.

The above description describes the structure of each part of the self-cleaning type electric rotary spindle structure 100 according to one preferred embodiment of the present invention and the method of its composition. Hereinafter, the use characteristics will be described in detail.

The present invention is used for a certain period of time and external air is supplied to the gap between the carbon brush annular base 31 and the electrically conductive sleeve set 20 through the air injection connector 33 of the electric supply sleeve set 30 So that the carbon powder immersed in the carbon brush component 32 and the electrically conductive ring 23 is blown out by the injection and the blown carbon powder is blown off between the carbon brush annular base 31 and the electrically conductive sleeve set 20 And is discharged through the gap. Accordingly, by using the air injected by the electric supply sleeve set 30, the deposited carbon is cleaned and at the same time, the air to be injected is used to cool the carbon brush component 32 and the electric conductive ring 23 It is possible to prevent the phenomenon that the electric conductivity is lowered due to the increase in temperature.

1 and 3, the carbon brush component 32 of the electrical supply sleeve set 30 includes one graphite rod 321, one carbon brush connector 322, And a spring 323. The graphite rod 321 is installed inside the carbon brush storage hole 311 of the carbon brush annular base 31 and has one end connected to the electric conductive ring 23, And one end thereof is connected to an external power line 324 which is connected to the graphite rod 321 and then transmitted to the electric conduction ring 23 through contact with the graphite rod 321 The carbon brush connector 322 is locked to the outside of the carbon brush storage hole 311 and the spring 322 is connected to the main shaft electrical conductive contact 113 via the electrically conductive wire 29, 323) is disposed between the graphite rod Contacts 322 so as to provide an elastic force to move the graphite rod 321 in the direction of the electrically conductive ring 23.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent changes to the present invention according to the related art are within the scope of the present invention.

100: Self-cleaning electric rotating spindle structure
10:
14: Spindle sleeve
11: Spindle lever
111: Through hole
112: wire guide hole
113: Spindle electrical conduction contact
12: Coupler
13: Fixed base
20: Electrically Conductive Sleeve Set
29: Electrically conductive wire
21: Bushing
210: annular flange
211: Bushing locking hole
212: Bushing wire guide hole
22: Insulation sleeve
221: insulated wire guide hole
222:
23: Electrically conductive ring
24: Insulation ring
241: Insulation ring wire guide hole
25:
26: Pressing lid
261: Locking lid locking hole
262: Pressed lid wire guide hole
27: Locking unit
28: Stop nut
30: Electric power supply sleeve set
33: Air injection connector
31: Carbon brush annular base
311: Carbon brush storage hole
312: air injection hole
32: Carbon brush component
321: graphite rod
322: Carbon brush connector
323: Spring
324: Power lead

Claims (12)

One spindle;
One electrically conductive sleeve set sandwiched between the main shafts and having two electrically conductive rings;
Wherein the carbon brush annular base is fitted to the outside of the electrically conductive sleeve set and is spaced apart from the electrically conductive sleeve set by a predetermined distance and the outer peripheral surface of the carbon brush annular base Wherein the two carbon brush components are radially arranged in the carbon brush storage hole of the annular base of the carbon brush in a radial direction of the carbon brush, and the radially extending carbon brush storage holes and the radially- And a plurality of electric conduction rings each having one end contacted with each of the electrically conductive rings of the set of electrically conductive sleeves, and external power is introduced into the electrically conductive ring through the carbon brush component, and an external gas is introduced into the electrically conductive ring via the carbon brush The component and the electrically conductive ring This single electrical supply sleeve to the incoming set; And,
Wherein two through holes are formed in the radial direction of the main shaft, two wire guide holes are formed in the axial direction of the main shaft, each of the wire guide holes communicates with the through hole at the corresponding position, Two main shaft electrical conducting contacts are provided; Wherein one end of each of the two electrically conductive wires is connected to each of the electrically conductive rings and the other end of the electrically conductive sleeve is passed through a through hole and a wire guide hole at corresponding positions, Wherein the main spindle is connected to two main spindle electrical conducting contacts. The method according to claim 1,
Wherein the main shaft comprises one main shaft lever, one coupler and one main shaft sleeve; The coupler is connected to one end of the spindle lever to rotate the spindle lever to rotate by transmitting rotational power to the spindle lever, and the spindle sleeve is fitted outside the other end of the spindle lever; Wherein the electrically conductive sleeve set is fitted to the main shaft lever. delete One spindle;
One electrically conductive sleeve set sandwiched between the main shafts and having two electrically conductive rings;
Wherein the carbon brush annular base is fitted to the outside of the electrically conductive sleeve set and is spaced apart from the electrically conductive sleeve set by a predetermined distance and the outer circumferential surface of the carbon brush annular base Wherein the two carbon brush components are radially arranged in the carbon brush storage hole of the annular base of the carbon brush in a radial direction of the carbon brush, and the radially extending carbon brush storage holes and the radially- And a plurality of electric conduction rings each having one end contacted with each of the electrically conductive rings of the set of electrically conductive sleeves, and external power is introduced into the electrically conductive ring through the carbon brush component, and an external gas is introduced into the electrically conductive ring via the carbon brush The component and the electrically conductive ring This single electrical supply sleeve to the incoming set; And,
Wherein the electrically conductive sleeve set further comprises one bushing, one insulating sleeve and one contact ring; Wherein the insulating sleeve is fitted to the outer circumferential surface of the bushing and the electric conduction ring is fitted to the outer circumferential surface of the insulating sleeve in a state in which the electric conduction ring is spaced apart from the outer circumferential surface of the insulating sleeve in a state in which the electrically conductive ring is in contact with the inner circumferential surface of the bushing, And is tightly engaged with the main shaft by the close contact ring. 5. The method of claim 4,
Wherein the electrically conductive sleeve set further comprises two electrically conductive wires; Wherein two bushing wire guide holes are formed in the axial direction of the bushing and two insulating sleeve wire guide holes are formed in an axial direction of the insulation sleeve so that one ends of the two electric conductive wires are respectively connected to the respective electric conduction And the other ends of the two electrically conductive wires are drawn out along the insulated sleeve wire guide holes and the bushing wire guide holes at the corresponding positions, respectively. 6. The method of claim 5,
Wherein the electrically conductive sleeve set further comprises one pressing lid and a plurality of locking units; A plurality of press lid locking holes and two press lid wire guide holes are formed in the axial direction of the press lid; A plurality of bushing locking holes are formed in the axial direction of the bushing; Wherein the locking unit is inserted into a bushing locking hole of a bushing and a bushing locking hole of the bushing to lock the bushing and the bushing lid, the bushing lid being in contact with the urging ring to urge the urging ring; Wherein the pressed lid wire guide hole allows the electrically conductive wire to pass through. The method according to claim 6,
Wherein the electrically conductive sleeve set further comprises two insulating rings, two insulating ring wire guide holes are formed in the axial direction of the insulating rings, and the two insulating rings are fitted to the upper surface of the bushing Wherein each of the two insulating ring wire guide holes is in contact with an outer end of each of the electric conductive rings, and the two insulating ring wire guide holes allow the respective electric conductive wires to pass therethrough. 8. The method of claim 7,
Wherein one annular blocking ring portion is formed on an outer circumferential surface of the insulating sleeve and the two electric conductive rings are cut off from each other by the blocking ring portion. 9. The method of claim 8,
Wherein the bushing has an annular flange at its front end and wherein the bushing locking hole and the bushing wire guide hole are provided in an annular flange and the electrically conductive sleeve set includes one stop nut which is locked at the distal end of the bushing, Wherein the annular flange and the detent nut secure the insulating sleeve, the electrically conductive ring, and the insulating ring to the bushing. 10. The method of claim 9,
Wherein the carbon brush annular base is fixed to the fixed base, and wherein the carbon brush annular base is fixed to the fixed base. The method according to claim 1,
Characterized in that the set of electrical supply sleeves further comprises one air injection connector, the air injection connector being installed in the air injection hole of the carbon brush annular base and being connected to one external gas supply Electric rotating spindle structure. The method according to claim 1,
Wherein the carbon brush component of the electric supply sleeve set comprises one graphite rod, one carbon brush connector and one spring, the graphite rod being installed inside the carbon brush storage hole of the carbon brush annular base, And the carbon brush connector is locked to the outside of the carbon brush storage hole and the spring is brought into contact between the graphite rod and the carbon brush connector so that the graphite Wherein the spring provides an elastic force to move the rod in the direction of the electrical conducting ring.

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