KR20110003603A - Master spindle - Google Patents

Master spindle Download PDF

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Publication number
KR20110003603A
KR20110003603A KR1020090060229A KR20090060229A KR20110003603A KR 20110003603 A KR20110003603 A KR 20110003603A KR 1020090060229 A KR1020090060229 A KR 1020090060229A KR 20090060229 A KR20090060229 A KR 20090060229A KR 20110003603 A KR20110003603 A KR 20110003603A
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KR
South Korea
Prior art keywords
spindle
spindle body
chip cover
shake correction
bushing nut
Prior art date
Application number
KR1020090060229A
Other languages
Korean (ko)
Inventor
이정균
Original Assignee
(주)성헌
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)성헌 filed Critical (주)성헌
Priority to KR1020090060229A priority Critical patent/KR20110003603A/en
Publication of KR20110003603A publication Critical patent/KR20110003603A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G1/00—Thread cutting; Automatic machines specially designed therefor
    • B23G1/16—Thread cutting; Automatic machines specially designed therefor in holes of workpieces by taps
    • B23G1/18—Machines with one working spindle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/08—Protective coverings for parts of machine tools; Splash guards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G2240/00—Details of equipment for threading other than threading tools, details of the threading process
    • B23G2240/48—Protective sleeves for taps

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For Machine Tools (AREA)

Abstract

The present invention relates to a master spindle for a tapping machine capable of high speed and high precision tapping on a workpiece of a general industrial machine.

The master spindle for the tapping machine according to the present invention is connected to one end of the spindle body 10 and the spindle spiral portion 15 provided with the chuck 5, so that the spindle body 10 and the spindle spiral portion 15 are integrally formed. And an upper end of the spindle body 10 is engaged with an upper engaging portion 21 of the chip cover 20 so that the spindle body 10 is covered by the chip cover 20, and the spindle spiral 15 The bushing nut 30 is fastened to the shaft, and the cylindrical portion 41 of the shake correction cap 40 coupled by the bushing nut 30 and the first bolt 35 is the spindle body 10 and the chip cover 20. By introducing into the gap (C) between the, characterized in that the cylindrical portion 41 of the shake correction cap 40 surrounding the spindle body 10 by the chip cover 20 is characterized.

Description

Master Spindle {MASTER SPINDLE}

The present invention relates to a master spindle for a tapping machine. More specifically, a cylindrical chip cover is mounted on a spindle body to prevent foreign matters such as chips and dust from entering between a spindle helix and a shake correction cap by the chip cover. And a master spindle for a tapping machine.

Korean applicant's patent application No. 2004-10888 (filed Feb. 19, 2004) of the present applicant introduces a 'master spindle for tap pin machine'.

The master spindle for the tapping machine includes a chuck to which the tab tool is detachably mounted, a chuck support member to which the chuck is mounted, a spindle bolt to which an upper end of the chuck support member is fixed, and a spindle bolt to be fastened to the spindle bolt. Since the chuck support member is integrally formed with the upper end portion of the chuck support member and the spindle spiral portion fixed to the bushing nut disposed at the lower portion, an umbrella chip cover is disposed at the lower end of the chuck support member.

However, in the master spindle for the tapping machine, an umbrella chip cover is disposed at the lower end of the chuck support member (spindle body), so that chips generated in the process of processing the workpiece by the tap tool enter the gap between the spindle bolt and the bushing nut. However, because the spindle helix is exposed to the outside, there is still a risk that the chip may enter between the spindle helix and the bushing nut, and foreign matter such as dust may enter the spindle bolt and the bushing nut to prevent the helix of the spindle bolt or the helix of the bushing nut. There was a disadvantage that could be broken.

Korean Utility Model Registration No. 20-0374319 (registered on January 18, 2005) of the present applicant introduces a "master spindle for tapping machine."

The master spindle for the tapping machine has a shake correction cap fitted to a spindle body having a holder at the upper end thereof to detachably mount a tapping tool, and a flange portion of the shake correction cap coupled to the spindle bolt by a fastening bolt. When the spindle bolt is engaged with the nut and makes relative motion with respect to the fixed bushing nut, the spindle body integrally coupled with the spindle bolt is brought into close contact with the inner circumferential surface of the shake correcting cap and is relative to the shake correcting cap fixed to the bushing nut. Ascending and descending movement without shaking.

However, the master spindle for the tapping machine as described above has the periphery of the spindle body and the shake correction cap disposed when the tapping tool processes the hole from the bottom to the top, which occurs between the spindle body and the upper end of the shake correction cap. There is a danger that foreign matter such as dust enters the minute gap and damages the spiral of the spindle bolt or the spiral of the bushing nut.

Accordingly, an object of the present invention is to mount a cylindrical chip cover on the spindle body, thereby covering the shake correction cap connected to the bushing nut, thereby preventing the spindle spiral from being exposed to the outside as well as shaking the spindle spiral. It is to provide a master spindle for the tapping machine to prevent foreign matter such as chips or dust from entering between the calibration caps.

Another object of the present invention is to provide a master spindle for a tapping machine in which the shake correction cap is formed integrally with the bushing nut.

One example of the master spindle for the tapping machine according to the present invention for achieving the above object is connected to one end of the spindle body and the spindle spiral with a chuck, the spindle body and the spindle spiral is integrally formed, the spindle body is The upper end of the spindle body is engaged with the upper engaging portion of the chip cover, the bushing nut is fastened to the spindle helix, and the cylindrical portion of the shake correction cap coupled by the bushing nut and the first bolt is covered by the chip cover. By entering the gap between the body and the chip cover, it is characterized in that the cylindrical portion of the shake correction cap surrounding the spindle body by the chip cover is covered.

The chip cover has a recess formed in the outer circumferential surface of the upper coupling portion by bending press molding, and an inner protrusion is formed inward to correspond to the groove, and the inner protrusion is pressed on the circumferential surface of the upper end of the spindle body. .

The first bolt is fastened to the fastening hole formed in the flange portion of the bushing nut through the bolt hole formed in the flange portion of the shake correction cap while the flange portion of the bushing nut and the flange portion of the shake correction cap overlap each other. The flange portion of the branch and the bushing nut is joined by the first bolt, and the second bolt is fastened to the fastening hole of the jig through the bolt hole formed in the flange portion of the shake correction cap and the bolt hole formed in the flange portion of the bushing nut. The bushing nut is fixed to the jig.

Alternatively, the coupling structure of the bushing nut and the shake correction cap is characterized in that the coupling portion formed at the bottom of the shake correction cap is fitted into the mounting groove formed in the flange portion of the bushing nut.

As another alternative, the bushing nut and the shake correction cap are formed integrally.

In another alternative, the chip cover is characterized by consisting of a fixing member fixed to the upper end of the spindle body, a coupling member coupled to the fixing member, and a cylindrical member fixed to the coupling member.

As a result, the master spindle according to the present invention has an effect of preventing foreign matters such as chip break and dust of small particles generated during tapping by the chip cover from entering the spindle helix.

Hereinafter, a preferred embodiment of the master spindle according to the present invention will be described in detail with reference to the drawings.

1 and 2, the master spindle according to the first embodiment of the present invention has a spindle body 10 (see FIG. 2) provided with a chuck 5 and one end of the spindle spiral 15 connected thereto. The spindle body 10 and the spindle spiral 15 are integrally formed and the upper end of the spindle body 10 is covered by the chip cover 20 so that the spindle body 10 is covered by the chip cover 20. The cylinder of the shake correction cap 40 is coupled to the coupling portion 21, the bushing nut 30 is fastened to the spindle spiral portion 15, and coupled by the bushing nut 30 and the first bolt 35. By introducing the portion 41 into the gap C between the spindle body 10 and the chip cover 20, the cylindrical portion of the shake correction cap 40 surrounding the spindle body 10 by the chip cover 20 ( 41) is covered.

As shown in FIG. 2, the chuck 5 is equipped with a tap tool 3 or a drill.

The chip cover 20 has a groove formed on an outer circumferential surface of the upper coupling portion 21 by bending press molding, and an inner protrusion is formed inward to correspond to the groove, and the inner protrusion has an upper end of the spindle body 10. It is pressed against the circumferential surface.

The bushing nut 30 is composed of a nut part 31 and a flange part 32, and two bolt holes 33 (see FIG. 2) and two fastening holes 34 (see FIG. 3) in the flange part 32. ) Is formed to face each other.

The shake correction cap 40 is to prevent the spindle body from shaking in the process of machining the tap tool, and is composed of a cylindrical portion 41 and a flange portion 42, four on the flange portion 42 The bolt hole 43 is formed.

As a result, as shown in FIG. 2, the first bolt 33 shakes the cap while the flange 32 of the bushing nut 30 and the flange 42 of the shake correcting cap 40 overlap with each other. Through the bolt hole 43 formed in the flange portion 42 of the 40 is fastened to the fastening hole 33 formed in the flange portion 32 of the bushing nut 30, the flange portion of the shake correction cap 40 ( 42 and the flange portion 32 of the bushing nut 30 are joined by the first bolt 33, and as shown in FIG. 3, the second bolt 36 is the flange portion of the shake correction cap 40. The bushing nut 30 is fastened to the fastening hole 51 of the jig 50 through the bolt hole 43 formed in the 42 and the bolt hole 34 formed in the flange portion 32 of the bushing nut 30. ) Is fixed to the jig 50.

3 and 4, the operation of the master spindle for the tapping machine according to the first embodiment of the present invention configured as described above is as follows.

As shown in FIG. 3, as described above, the bushing nut 30 is fixed to the jig 50 so that the tab tool 3 mounted on the chuck is disposed upward, and the cylinder of the shake correction cap 40 is upward. In the stand-by state where the portion 41 is deeply drawn into the gap C between the spindle body 10 and the chip cover 20, as shown in FIG. 4, the spindle spiral 15 is driven by rotational power. When rotated relative to the bushing nut 30 fixed to the jig 50, the spindle helix 15 and the spindle body 10 are lifted up relative to the bushing nut 50, and the spindle body 10 Tap tool (3) fixed to the chuck (5) of the) forms the tab in the hole 61 of the workpiece (60). At this time, the cylindrical portion 41 of the shake correction cap 40 is covered by the chip cover 20, so that foreign matter such as chips or dust generated in the machining process by the cylindrical portion 41 of the correction cap 40 is removed. It is prevented from entering.

5, the master spindle for the tapping machine according to the second embodiment of the present invention is formed at the bottom of the shake correction cap 140 in the mounting groove 136 formed in the flange portion 135 of the bushing nut 130 Except that the coupling portion 141 is fitted and fixed, it is the same as the master spindle for the tapping machine according to the first embodiment of the present invention.

Referring to FIG. 6, the master spindle for the tapping machine according to the third embodiment of the present invention is the first embodiment of the present invention, except that the bushing nut 240 and the shake correction cap 240 are integrally formed. Same as master spindle for tapping machine accordingly.

Referring to FIG. 7, the master spindle for the tapping machine according to the fourth embodiment of the present invention includes a fixing member 321 in which the chip cover 320 is fixed to an upper end of the spindle body 310, and the fixing member 321. It is the same as the master spindle for the tapping machine according to the third embodiment of the present invention, except that the coupling member 322 is coupled to the cylindrical member 323 fixed to the coupling member 322.

1 is a perspective view showing a master spindle according to a first embodiment of the present invention.

FIG. 2 is a half sectional view of the master spindle of FIG. 1.

3 and 4 are process diagrams showing an example in which the master spindle according to the first embodiment of the present invention processes the workpiece.

5 is a half sectional view showing a master spindle according to the second embodiment of the present invention.

6 is a half sectional view showing a master spindle according to the third embodiment of the present invention.

7 is a half sectional view showing a master spindle according to the fourth embodiment of the present invention.

Claims (6)

The spindle body 10 having the chuck 5 and one end of the spindle spiral 15 are connected to each other so that the spindle body 10 and the spindle spiral 15 are integrally formed, and the spindle body 10 is The upper end of the spindle body 10 is coupled with the upper engaging portion 21 of the chip cover 20 so as to be covered by the chip cover 20, and the bushing nut 30 is fastened to the spindle spiral 15. The cylindrical portion 41 of the shake correction cap 40 coupled by the bushing nut 30 and the first bolt 35 is introduced into the gap C between the spindle body 10 and the chip cover 20. , The master spindle for the tapping machine, characterized in that the cylindrical cover 41 of the shaking correction cap 40 surrounding the spindle body 10 by the chip cover 20 is covered. The method of claim 1, The chip cover 20 has a groove formed on an outer circumferential surface of the upper coupling portion 21 by bending press molding, and an inner protrusion is formed inward to correspond to the groove, and the inner protrusion has an upper end of the spindle body 10. Master spindle for tapping machine, characterized in that the pressing on the circumferential surface. The method of claim 1, The first bolt 33 is formed on the flange portion 42 of the shake correction cap 40 while the flange portion 32 of the bushing nut 30 and the flange portion 42 of the shake correction cap 40 overlap. It is fastened to the fastening hole 33 formed in the flange part 32 of the bushing nut 30 through the bolt hole 43, and the flange part 42 and the flange part of the bushing nut 30 of the shake correction cap 40 are fixed. (32) is coupled by the first bolt 33, the second bolt 36 is the flange portion of the bolt hole 43 and the bushing nut 30 formed in the flange portion 42 of the shake correction cap 40 The master spindle for the tapping machine, characterized in that the bushing nut (30) is fixed to the jig (50) by being fastened to the fastening hole (51) of the jig (50) through the bolt hole (34) formed in the (32). The spindle body with the chuck is connected to one end of the spindle helix, so that the spindle body and the spindle helix are integrally formed, and the upper end of the spindle body is engaged with the upper engaging portion of the chip cover so that the spindle body is covered by the chip cover. The bushing nut is fastened to the spindle helix, and the coupling part formed at the lower end of the shake correction cap is fitted into the mounting groove formed in the flange portion of the bushing nut, and the cylindrical portion of the shake correction cap is disposed between the spindle body and the chip cover. A master spindle for a tapping machine, characterized in that the cylindrical portion of the shake correction cap surrounding the spindle body is covered by a chip cover by being inserted into the gap. The spindle body with the chuck is connected to one end of the spindle helix, so that the spindle body and the spindle helix are integrally formed, and the upper end of the spindle body is engaged with the upper engaging portion of the chip cover so that the spindle body is covered by the chip cover. And a bushing nut integrally formed with the shake correction cap on the spindle helix, and the cylindrical portion of the shake correction cap is inserted into the gap between the spindle body and the chip cover, thereby covering the spindle body by the chip cover. Master spindle for tapping machine, characterized in that the cylindrical portion is covered. The method of claim 5, The chip cover is a master spindle for a tapping machine, characterized in that consisting of a fixing member fixed to the upper end of the spindle body, a coupling member coupled to the fixing member, a cylindrical member fixed to the coupling member.
KR1020090060229A 2009-07-02 2009-07-02 Master spindle KR20110003603A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020090060229A KR20110003603A (en) 2009-07-02 2009-07-02 Master spindle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090060229A KR20110003603A (en) 2009-07-02 2009-07-02 Master spindle

Related Child Applications (1)

Application Number Title Priority Date Filing Date
KR1020100025650A Division KR101137899B1 (en) 2010-03-23 2010-03-23 Master spindle

Publications (1)

Publication Number Publication Date
KR20110003603A true KR20110003603A (en) 2011-01-13

Family

ID=43611339

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020090060229A KR20110003603A (en) 2009-07-02 2009-07-02 Master spindle

Country Status (1)

Country Link
KR (1) KR20110003603A (en)

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