KR20160140180A - Retapping apparatus - Google Patents
Retapping apparatus Download PDFInfo
- Publication number
- KR20160140180A KR20160140180A KR1020150076474A KR20150076474A KR20160140180A KR 20160140180 A KR20160140180 A KR 20160140180A KR 1020150076474 A KR1020150076474 A KR 1020150076474A KR 20150076474 A KR20150076474 A KR 20150076474A KR 20160140180 A KR20160140180 A KR 20160140180A
- Authority
- KR
- South Korea
- Prior art keywords
- nut
- machining
- drive shaft
- coupler body
- tab
- Prior art date
Links
- 238000003754 machining Methods 0.000 claims abstract description 86
- 238000000034 method Methods 0.000 claims description 13
- 230000000452 restraining effect Effects 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000010079 rubber tapping Methods 0.000 abstract description 31
- 239000012530 fluid Substances 0.000 description 6
- 239000003973 paint Substances 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000000707 wrist Anatomy 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B33/00—Features common to bolt and nut
- F16B33/02—Shape of thread; Special thread-forms
Abstract
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a re-tapping device, and more particularly, to a re-tapping device capable of preventing a nut of a chassis frame from being damaged.
Generally, a plurality of nuts are provided in a chassis frame for a vehicle or the like. When paint is applied to the chassis frame, foreign substances such as paint may penetrate the threaded portion of the nut. The re-tapping device includes an air tool driven by air pressure, and a processing tap rotatably coupled to the air tool to remove foreign matter or paint adhering to the nut. The re-tapping device cleans the foreign material attached to the nut while the processing tab is rotated by the air tool.
However, in the related art, the worker approaches the machining tab to the nut of the chassis frame by holding the re-tapping device and re-tapping (cleaning) the nut, so that the threaded portion of the nut may be damaged as the machining tap is shaken by the vibration of the re- have. If the threads of the nut are damaged, the assembly process of the chassis frame may become impossible.
Further, since the worker carries out the re-tapping process while holding the re-tapping device, an injury may occur on the wrist or the waist of the worker. In addition, since the operator manually cleans the nut, the productivity may be lowered when the operator's skill level is low.
BACKGROUND ART [0002] The background art of the present invention is disclosed in Japanese Laid-Open Patent Publication No. 2011-179611 (published on September 15, 2011, entitled "Coating removal bolt and method for manufacturing the same").
SUMMARY OF THE INVENTION It is an object of the present invention to provide a re-tapping device capable of preventing a nut of a chassis frame from being damaged.
A re-tapping apparatus according to the present invention comprises: a base plate movably installed on a base; A support table movably installed on the base plate; A motor unit installed on the support base; A drive chuck provided on the support and having a drive shaft rotatably coupled to the motor unit; And a machining tap provided on the drive shaft so as to be movable along a longitudinal direction of the drive shaft. When the machining tap is rotated with the machining tap engaged with the nut of the chassis frame, And a coupler which is moved toward the nut side from the drive shaft according to the pulling.
The coupler including: a coupler body coupled to the drive shaft; A moving member coupled to the machining tab and movably coupled to the coupler body along an axial direction of the drive shaft; And an elastic member disposed between the moving member and the coupler body and acting to apply an elastic force to the moving member to move the moving member toward the drive shaft.
A stepped portion is formed in the coupler body, a stepped groove is formed in the movable member so as to be coupled to the stepped portion of the coupler body, one side of the elastic member is supported by the coupler body, And can exert an elastic force to push the moving member toward the drive shaft.
A coupling end is formed on one side of the coupler body to support one side of the elastic member, and a restraining end portion may be formed on the moving member to support the other side of the elastic member.
The movement of the drive shaft can be controlled to be stopped when the machining tab is engaged with the nut.
The motor unit may rotate the drive shaft in a reverse direction when a predetermined time has elapsed after the machining tap is engaged with the nut.
According to the present invention, as the coupler is moved from the drive shaft when the machining tab is rotated while being engaged with the nut, a clearance is generated between the coupler and the drive shaft. Therefore, even if the machining tap is rotated in a state slightly shifted from the rotation axis of the drive shaft It is possible to prevent the nut from being damaged by the machining tap. Furthermore, it is possible to prevent the nut of the chassis frame from being damaged, thereby preventing the assembly process of the chassis frame from being interrupted.
Further, according to the present invention, since the first driving portion, the second driving portion, and the third driving portion re-taps the nut after moving the machining tab, the possibility of injury of the operator is solved and the productivity of the vehicle can be prevented from being lowered .
1 is a side view showing a re-tapping apparatus according to an embodiment of the present invention.
2 is a plan view showing a re-tapping apparatus according to an embodiment of the present invention.
3 is a cross-sectional view illustrating a coupler of a re-tapping apparatus according to an embodiment of the present invention.
4 is a cross-sectional view showing a state in which a machining tab is opposed to a nut in a re-tapping apparatus according to an embodiment of the present invention.
5 is a cross-sectional view showing a state in which a machining tab is engaged with a threaded portion of a nut in a re-tapping apparatus according to an embodiment of the present invention.
6 is a cross-sectional view illustrating a state in which a machining tab is moved along a threaded portion of a nut in a re-tapping apparatus according to an embodiment of the present invention.
7 is a cross-sectional view showing a state in which a machining tab is missing from a threaded portion of a nut in a re-tapping apparatus according to an embodiment of the present invention.
Hereinafter, an embodiment of a re-tapping apparatus according to the present invention will be described with reference to the accompanying drawings. In the course of describing the re-tapping apparatus, the thicknesses of the lines and the sizes of the constituent elements shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.
FIG. 1 is a side view showing a re-tapping apparatus according to an embodiment of the present invention. FIG. 2 is a plan view showing a re-tapping apparatus according to an embodiment of the present invention. Sectional view showing a coupler of the re-tapping apparatus according to the present invention.
1 to 3, a re-tapping apparatus according to an embodiment of the present invention includes a
The
The
The
The
The
The
The driving
The
One end of the
The
The
The moving
The
The moving
A stepped
A locking
The
The
The
The operation of the re-piping apparatus according to an embodiment of the present invention will be described.
4 is a cross-sectional view showing a state in which a machining tab is opposed to a nut in a re-tapping apparatus according to an embodiment of the present invention.
Referring to FIG. 4, as the
FIG. 5 is a sectional view showing a state in which a machining tab is engaged with a threaded portion of a nut in a re-tapping apparatus according to an embodiment of the present invention, and FIG. 6 is a cross- And Fig.
5 and 6, when it is determined that the
As the
The
7 is a cross-sectional view showing a state in which a machining tab is missing from a threaded portion of a nut in a re-tapping apparatus according to an embodiment of the present invention.
Referring to FIG. 7, when the predetermined time has elapsed after the
The
As described above, when the
Since the
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand.
Accordingly, the true scope of protection of the present invention should be defined by the claims.
10: chassis frame 13: nut
101: machining tab 102: tab portion
110: base 120: base plate
123: first driving part 125: second driving part
127: third driving part 130:
140: motor unit 150: drive chuck
151: fixed housing 153: drive shaft
160: coupler 161: coupler body
161a: stepped
163: moving
163b: restraining end 165: elastic member
171: Distance measuring unit 175: Nut sensing unit
Claims (6)
A support table movably installed on the base plate;
A motor unit installed on the support base;
A drive chuck provided on the support and having a drive shaft rotatably coupled to the motor unit; And
The machining tab is engaged with the nut of the chassis frame, and the machining tab is pulled by the threaded portion of the nut when the machining tap is rotated with the nut engaged with the nut of the chassis frame And a coupler which moves from the drive shaft to the nut side in accordance with the movement of the drive shaft.
The coupler
A coupler body coupled to the drive shaft;
A moving member coupled to the machining tab and movably coupled to the coupler body along an axial direction of the drive shaft; And
And an elastic member disposed between the moving member and the coupler body and applying an elastic force to the moving member to move the moving member toward the driving shaft side.
A stepped portion is formed on the coupler body,
A stepped groove is formed in the movable member so as to be coupled to the stepped portion of the coupler body,
Wherein the elastic member is supported on one side of the coupler body and the other side is supported on the moving member to exert an elastic force to push the moving member toward the driving shaft.
A coupling end is formed at one side of the coupler body so as to support one side of the elastic member,
Wherein the moving member is formed with a restraining end portion so that the other side of the elastic member is supported.
And the movement of the drive shaft is stopped when the machining tab is engaged with the nut.
Wherein the motor unit rotates the drive shaft in reverse when a predetermined time elapses after the machining tap is engaged with the nut.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150076474A KR101754113B1 (en) | 2015-05-29 | 2015-05-29 | Retapping apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150076474A KR101754113B1 (en) | 2015-05-29 | 2015-05-29 | Retapping apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20160140180A true KR20160140180A (en) | 2016-12-07 |
KR101754113B1 KR101754113B1 (en) | 2017-07-06 |
Family
ID=57573400
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020150076474A KR101754113B1 (en) | 2015-05-29 | 2015-05-29 | Retapping apparatus |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR101754113B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20180130915A (en) * | 2017-05-30 | 2018-12-10 | 주식회사화신 | Tapping apparatus for nut |
KR20230028976A (en) | 2021-08-23 | 2023-03-03 | 주식회사 동희산업 | Waste removing apparatus for of tap for retapping tool |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102229227B1 (en) | 2020-12-03 | 2021-03-17 | 이상동 | The A device for removing the coating layer on the thread surface of automobile parts for electrodeposition coating |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4813087B2 (en) * | 2005-05-10 | 2011-11-09 | 富士重工業株式会社 | Tapping machine |
-
2015
- 2015-05-29 KR KR1020150076474A patent/KR101754113B1/en active IP Right Grant
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20180130915A (en) * | 2017-05-30 | 2018-12-10 | 주식회사화신 | Tapping apparatus for nut |
KR20230028976A (en) | 2021-08-23 | 2023-03-03 | 주식회사 동희산업 | Waste removing apparatus for of tap for retapping tool |
Also Published As
Publication number | Publication date |
---|---|
KR101754113B1 (en) | 2017-07-06 |
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