CN103212737A - Connecting structure of shaft base and integrated guide base of self-clinching drill chuck - Google Patents
Connecting structure of shaft base and integrated guide base of self-clinching drill chuck Download PDFInfo
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- CN103212737A CN103212737A CN2013101361267A CN201310136126A CN103212737A CN 103212737 A CN103212737 A CN 103212737A CN 2013101361267 A CN2013101361267 A CN 2013101361267A CN 201310136126 A CN201310136126 A CN 201310136126A CN 103212737 A CN103212737 A CN 103212737A
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- axle bed
- drill chuck
- integral type
- syndeton
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Abstract
The invention belongs to the machinery technical field, and relates to a self-clinching drill chuck, in particular to a connecting structure of a shaft base and an integrated guide base of the self-clinching drill chuck. The connecting structure solves the technical problem that design is not reasonable in the prior art. The connecting structure comprises the integrated guide base and the shaft base, wherein the shaft base is arranged in an integrated guide portion, a shaft thread section is arranged on the shaft base, the integrated guide portion is provided with a connecting thread section, and the shaft base thread section is connected with the connecting thread section through threads. The shaft base is provided with a locating part above the shaft base thread section, the integrated guide base is provided with a locating stair located above the connecting thread section, and the locating part is tightly matched with the locating stair. The connecting structure is characterized of being reasonable in design, simple in structure, high in mechanical strength and good in work stability, and the shaft base does not loose or bound in the work process of the drill chuck. Besides, the shaft base is multipurpose, easy to disassemble and assemble, high in connecting strength after assembly, and capable of effectively simplifying the structure of the self-clinching drill chuck and improving structure strength.
Description
Technical field
The invention belongs to field of mechanical technique, relate to keyless drill chuck, especially relate to the syndeton of a kind of keyless drill chuck axle bed and integral type guidance seat.
Background technology
Along with development of social productivity, the use of drill chuck is very extensive, employed bench drill, electric hand drill or lathe etc. mechanically all can need to carry out work with instruments such as drill chuck clamping drilling bit or cutters in industries such as machine-building, electronic apparatus, construction and installation, house decoration.Existing drill chuck has two types usually: a kind of is the Wrench-type drill chuck, the clamping force of this drill chuck depends on the moment that spanner applies, and clamping and pine needs aid when unloading drill bit, the use aid tightens or unclamps drill chuck and come installation or removal drill bit or cutter, operate cumbersomely, waste time and energy; Another kind is a self-tightening drill chuck.Self-tightening drill chuck utilizes the rotation after drill bit is installed by the principle of self-tightening, tightens drill bit or cutter by screw thread automatically, is easy to when instruments such as clamping drill bit or cutter.
Conventional keyless drill chuck generally includes main body, lock-screw, jaw, ball, end shield, jaw seat, end cap and ball lid.The ball cover cavity has a ring-shaped step, main body is a cylinder, an annular shaft shoulder is arranged on the periphery, a circle ball is distributing between the ring-shaped step of the annular shaft shoulder of main body and ball lid, main body is loaded in the pilot sleeve that is stitched together by ball lid and jaw seat, and this pilot sleeve is to be stitched together by the thread connection that end shield and ball cover.Obviously, the prior art complex structure is easy to after assembling is finished occur becoming flexible, and has a strong impact on the keyless drill chuck operate as normal.
Summary of the invention
The objective of the invention is at the problems referred to above, provide a kind of reasonable in design, simple in structure, mechanical strength height, the syndeton of the keyless drill chuck axle bed of good operating stability and integral type guidance seat.
For achieving the above object, the present invention has adopted following technical proposal: the syndeton of this keyless drill chuck axle bed and integral type guidance seat, it is characterized in that, this syndeton comprises tubular integral type guidance seat and tubular axle bed, the top of described integral type guidance seat is that cylindrical circular monoblock type is held the portion of leading, the bottom is the jaw rail portion that is taper barrel, described monoblock type holds the portion of leading and the jaw rail portion is an integral structure, described axle bed is arranged on monoblock type and holds in the portion of leading, on axle bed, be provided with the axle bed thread segment, hold in monoblock type and to be provided with the connecting thread section in the portion of leading, described axle bed thread segment and connecting thread section are by being threaded, described axle bed is provided with the location division that is positioned at axle bed thread segment top, described monoblock type is held the portion of leading and is provided with positioning step, described location division and the described positioning step tight fit that is positioned at connecting thread section top.
In the syndeton of above-mentioned keyless drill chuck axle bed and integral type guidance seat, the upper surface of described axle bed flushes with the upper surface that monoblock type is held the portion of leading.
In the syndeton of above-mentioned keyless drill chuck axle bed and integral type guidance seat, be provided with cylindrical main body in the described integral type guidance seat, on the periphery of main body, be provided with the annular shaft shoulder, described monoblock type is held and is provided with ring-shaped step in the portion of leading, the described annular shaft shoulder is arranged on the ring-shaped step, form thrust bearing between the described axle bed lower end and the annular shaft shoulder, described axle bed radially inner side forms radial plain bearing.
In the syndeton of above-mentioned keyless drill chuck axle bed and integral type guidance seat, be provided with plurality of balls between the last ring surface of the lower surface of described axle bed and the annular shaft shoulder, and ball contacts directly with the lower surface of axle bed and the last ring surface of the annular shaft shoulder respectively.
In the syndeton of above-mentioned keyless drill chuck axle bed and integral type guidance seat, described axle bed radially inner side is the bearing shell of radial plain bearing; Described axle bed lower end is the seat ring of thrust bearing, and described annular shaft shoulder top is the blowout patche of thrust bearing.
In the syndeton of above-mentioned keyless drill chuck axle bed and integral type guidance seat, the lower surface of described axle bed has the ring-type arcuate groove, and described ball is located in the ring-type arcuate groove.
In the syndeton of above-mentioned keyless drill chuck axle bed and integral type guidance seat, described main body upper end is with elastic cover, described elastic cover is provided with at least two pins, and the upper surface of described axle bed is provided with at least two fabrication holes, described pin and the corresponding one by one setting of fabrication hole.
In the syndeton of above-mentioned keyless drill chuck axle bed and integral type guidance seat, described fabrication hole and pin evenly distribute at circumferencial direction respectively.
Compared with prior art, the advantage of the syndeton of this keyless drill chuck axle bed and integral type guidance seat is: reasonable in design, simple in structure, and the mechanical strength height, good operating stability loosening and play can not occur at drill chuck course of work central axis seat.In addition, axle bed has multiple use concurrently, is easy to dismounting and assembling back bonding strength height, can effectively simplify the structure of keyless drill chuck, improves the structural strength of keyless drill chuck.
Description of drawings
Fig. 1 is that the present invention provided by the invention partly cuts open structural representation when being applied to keyless drill chuck.
Fig. 2 is the structural representation that partly cuts open provided by the invention.
Among the figure, integral type guidance seat 1, monoblock type are held the portion of leading 11, connecting thread section 11a, positioning step 11b, jaw rail portion 12, ring-shaped step 13, axle bed 2, axle bed thread segment 21, location division 22, fabrication hole 23, ring-type arcuate groove 24, main body 3, the annular shaft shoulder 31, lock-screw 4, jaw 5, end shield 6, ball 7, elastic cover 8, pin 81, thrust bearing 9, radial plain bearing 10.
The specific embodiment
As shown in Figure 1, the main supporting type keyless drill chuck of this pair comprises parts such as main body 3, lock-screw 4, jaw 5, integral type guidance seat 1, end shield 6, axle bed 2, ball 7, elastic cover 8.Main body 3 is cylindric, in main body 3 lower ends by the lock-screw 4 that has been threaded, be equipped with in lock-screw 4 lower ends with respect to lock-screw 4 axially, circumferentially location and three jaws 5 movably radially.Main body 3 is located in the tubular integral type guidance seat 1
As shown in Figure 2, the syndeton of this keyless drill chuck axle bed and integral type guidance seat comprises tubular integral type guidance seat 1 and tubular axle bed 2, the top of described integral type guidance seat 1 is that cylindrical circular monoblock type is held the portion of leading 11, the bottom is the jaw rail portion 12 that is taper barrel, described monoblock type holds the portion of leading 11 and jaw rail portion 12 is integral structure, described axle bed 2 is arranged on monoblock type and holds in the portion of leading 11, on axle bed 2, be provided with axle bed thread segment 21, hold in monoblock type and to be provided with connecting thread section 11a in the portion of leading 11, described axle bed thread segment 21 and connecting thread section 11a are by being threaded, described axle bed 2 is provided with the location division 22 that is positioned at axle bed thread segment 21 tops, hold in monoblock type and to be provided with the positioning step 11b that is positioned at above the connecting thread section 11a in the portion of leading 11, described location division 22 and described positioning step 11b tight fit.
Be provided with cylindrical main body 3 in the integral type guidance seat 1, on the periphery of main body 3, be provided with the annular shaft shoulder 31, described monoblock type is held and is provided with ring-shaped step 13 in the portion of leading 11, the described annular shaft shoulder 31 is arranged on the ring-shaped step 13, form thrust bearing 9 between described axle bed 2 lower ends and the annular shaft shoulder 31, described axle bed 2 radially inner sides form radial plain bearing 10.
Be provided with plurality of balls 7 between the last ring surface of the lower surface of axle bed 2 and the annular shaft shoulder 31, and ball 7 contacts directly with the lower surface of axle bed 2 and the last ring surface of the annular shaft shoulder 31 respectively.Axle bed 2 radially inner sides are the bearing shell of radial plain bearing 10; Axle bed 2 lower ends are the seat ring of thrust bearing 9, and the described annular shaft shoulder 31 tops are the blowout patche of thrust bearing 9.More particularly, the lower surface of axle bed 2 has ring-type arcuate groove 24, and ball 7 is located in the ring-type arcuate groove 24.
Specific embodiment described herein only is that the present invention's spirit is illustrated.The technical staff of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used integral type guidance seat 1, monoblock type to hold terms such as the portion of leading 11, connecting thread section 11a, positioning step 11b, jaw rail portion 12, ring-shaped step 13, axle bed 2, axle bed thread segment 21, location division 22, fabrication hole 23, ring-type arcuate groove 24, main body 3, the annular shaft shoulder 31, lock-screw 4, jaw 5, end shield 6, ball 7, elastic cover 8, pin 81, thrust bearing 9, radial plain bearing 10 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; They are construed to any additional restriction all is contrary with spirit of the present invention.
Claims (8)
1. the syndeton of keyless drill chuck axle bed and integral type guidance seat, it is characterized in that, this syndeton comprises tubular integral type guidance seat (1) and tubular axle bed (2), the top of described integral type guidance seat (1) is that cylindrical circular monoblock type is held the portion of leading (11), the bottom is the jaw rail portion (12) that is taper barrel, described monoblock type holds the portion of leading (11) and jaw rail portion (12) is integral structure, described axle bed (2) is arranged on monoblock type and holds in the portion of leading (11), on axle bed (2), be provided with axle bed thread segment (21), hold in monoblock type and to be provided with connecting thread section (11a) in the portion of leading (11), described axle bed thread segment (21) and connecting thread section (11a) are by being threaded, described axle bed (2) is provided with the location division (22) that is positioned at axle bed thread segment (21) top, hold in monoblock type and to be provided with the positioning step (11b) that is positioned at connecting thread section (11a) top in the portion of leading (11), described location division (22) and described positioning step (11b) tight fit.
2. the syndeton of keyless drill chuck axle bed according to claim 1 and integral type guidance seat is characterized in that, the upper surface of described axle bed (2) flushes with the upper surface that monoblock type is held the portion of leading (11).
3. the syndeton of keyless drill chuck axle bed according to claim 2 and integral type guidance seat, it is characterized in that, be provided with cylindrical main body (3) in the described integral type guidance seat (1), on the periphery of main body (3), be provided with the annular shaft shoulder (31), described monoblock type is held and is provided with ring-shaped step (13) in the portion of leading (11), the described annular shaft shoulder (31) is arranged on the ring-shaped step (13), form thrust bearing (9) between described axle bed (2) lower end and the annular shaft shoulder (31), described axle bed (2) radially inner side forms radial plain bearing (10).
4. the syndeton of keyless drill chuck axle bed according to claim 3 and integral type guidance seat, it is characterized in that, be provided with plurality of balls (7) between the last ring surface of the lower surface of described axle bed (2) and the annular shaft shoulder (31), and ball (7) contacts directly with the lower surface of axle bed (2) and the last ring surface of the annular shaft shoulder (31) respectively.
5. the syndeton of keyless drill chuck axle bed according to claim 4 and integral type guidance seat is characterized in that, described axle bed (2) radially inner side is the bearing shell of radial plain bearing (10); Described axle bed (2) lower end is the seat ring of thrust bearing (9), and the described annular shaft shoulder (31) top is the blowout patche of thrust bearing (9).
6. the syndeton of keyless drill chuck axle bed according to claim 4 and integral type guidance seat is characterized in that, the lower surface of described axle bed (2) has ring-type arcuate groove (24), and described ball (7) is located in the ring-type arcuate groove (24).
7. according to the syndeton of claim 3 or 4 or 5 or 6 described keyless drill chuck axle beds and integral type guidance seat, it is characterized in that, described main body (3) upper end is with elastic cover (8), described elastic cover (8) is provided with at least two pins (81), the upper surface of described axle bed (2) is provided with at least two fabrication holes (23), described pin (81) and the corresponding one by one setting of fabrication hole (23).
8. the syndeton of keyless drill chuck axle bed according to claim 7 and integral type guidance seat is characterized in that, described fabrication hole (23) and pin (81) evenly distribute at circumferencial direction respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310136126.7A CN103212737B (en) | 2013-04-18 | 2013-04-18 | Keyless drill chuck axle bed and the attachment structure of integrated guide bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310136126.7A CN103212737B (en) | 2013-04-18 | 2013-04-18 | Keyless drill chuck axle bed and the attachment structure of integrated guide bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103212737A true CN103212737A (en) | 2013-07-24 |
| CN103212737B CN103212737B (en) | 2016-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310136126.7A Active CN103212737B (en) | 2013-04-18 | 2013-04-18 | Keyless drill chuck axle bed and the attachment structure of integrated guide bearing |
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| CN (1) | CN103212737B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014169854A1 (en) * | 2013-04-18 | 2014-10-23 | You Yihua | Composite bearing for self-tightening drill chuck |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1113754A (en) * | 1997-06-19 | 1999-01-22 | Okuma Mach Works Ltd | Bearing device |
| CN2683288Y (en) * | 2004-03-19 | 2005-03-09 | 游友民 | Self fastened drill chuck with improved structure |
| CN2709061Y (en) * | 2004-03-09 | 2005-07-13 | 三鸥集团有限公司 | Hard alloy drill chuck gripping jaw |
| CN2832375Y (en) * | 2005-09-27 | 2006-11-01 | 浙江三鸥机械股份有限公司 | Locking self-screwed drill chuck |
| WO2008009170A1 (en) * | 2006-07-11 | 2008-01-24 | Zhenqian Hu | Hand fastening drill chuck and bearing collar self-locking mechanism for the same |
| CN203265717U (en) * | 2013-04-18 | 2013-11-06 | 玉环胜友工具有限公司 | Connecting structure for shaft seat and integrated guide bearing seat of self-fastening drill chuck |
-
2013
- 2013-04-18 CN CN201310136126.7A patent/CN103212737B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1113754A (en) * | 1997-06-19 | 1999-01-22 | Okuma Mach Works Ltd | Bearing device |
| CN2709061Y (en) * | 2004-03-09 | 2005-07-13 | 三鸥集团有限公司 | Hard alloy drill chuck gripping jaw |
| CN2683288Y (en) * | 2004-03-19 | 2005-03-09 | 游友民 | Self fastened drill chuck with improved structure |
| CN2832375Y (en) * | 2005-09-27 | 2006-11-01 | 浙江三鸥机械股份有限公司 | Locking self-screwed drill chuck |
| WO2008009170A1 (en) * | 2006-07-11 | 2008-01-24 | Zhenqian Hu | Hand fastening drill chuck and bearing collar self-locking mechanism for the same |
| CN203265717U (en) * | 2013-04-18 | 2013-11-06 | 玉环胜友工具有限公司 | Connecting structure for shaft seat and integrated guide bearing seat of self-fastening drill chuck |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014169854A1 (en) * | 2013-04-18 | 2014-10-23 | You Yihua | Composite bearing for self-tightening drill chuck |
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| Publication number | Publication date |
|---|---|
| CN103212737B (en) | 2016-08-31 |
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