CN104117966B - A kind of removal tool special moving back bolt - Google Patents
A kind of removal tool special moving back bolt Download PDFInfo
- Publication number
- CN104117966B CN104117966B CN201410333016.4A CN201410333016A CN104117966B CN 104117966 B CN104117966 B CN 104117966B CN 201410333016 A CN201410333016 A CN 201410333016A CN 104117966 B CN104117966 B CN 104117966B
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- CN
- China
- Prior art keywords
- extension bar
- silk
- bolt
- nut
- cutting edge
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/18—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same withdrawing broken threaded parts or twist drills
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The invention discloses a kind of specific purpose tool moving back bolt, specific purpose tool comprises: for connect and the silk that moves back of hook bolt bores, its cutting edge has three parts, drilling centering, hook bolt and strengthen the effect of rotating torque; Its other end is placed in the hole rotating extension bar, and the locking nut wherein rotated on extension bar creeps into the fastening location of row to moving back silk; Rotate extension bar and grip shank to be connected and spacing to described rotation extension bar through thread orientation by attaching nut; Stop steel ball, pressure spring and look nut grip shank be equipped with; The adjustment of look nut can make pressure spring produce normal pressure to stop steel ball; The spiral shell mosquito of stop steel ball and described rotation extension bar is suitable.The present invention is easy to use, not by the restriction of dismounting place and workpiece size, the specification of being moved back silk brill by replacing can be dismantled the bolt of all size model; Its compact conformation, is provided with self-locking overload protection function, has overload protection function to operating personnel.
Description
Technical field
The present invention relates to assembling extracting tool in machining, especially a kind of for excessive due to pretightning force in assembling process and tool special for dismounting after causing various bolt head to split off.
Background technology
Product it be formed by assembling parts, and parts are formed by various Assembly of the parts, the bolt that have employed various different size different model in assembling process connects, although the size of various bolt all carried out check when designing, but still there are many bolts in assembling process, occur the phenomenon that bolt head is sheared or twisted off.Light then affect the assembling progress of whole production line, heavy then part or parts subscription rate.Operating personnel can adopt glut to knock bolt and exit bolt in the ordinary course of things, and the work efficiency that wastes time and energy is not high, sometimes by the screwed hole wedge of assembling bolt badly subscription rate.
According to retrieval, domestic not yet have the patent application identical with the present invention.
Summary of the invention
The invention provides a kind of structure simple, economical and practical, easy to use, there is the specific purpose tool moving back bolt of overload protection function.
The technical solution adopted in the present invention is:
Move back a specific purpose tool for bolt, specific purpose tool comprises: move back silk and bore, rotate extension bar, attaching nut and grip shank;
Grip shank comprises pommel, two locating holes, outer spiral shell mosquito and inner chambers;
Locating hole is provided with from inside to outside in installing stop steel ball, pressure spring and look nut successively; Wherein the adjustment of look nut can make pressure spring produce different normal pressures to stop steel ball;
The one end rotating extension bar is placed in the inner chamber of grip shank, wherein rotates between extension bar and the bottom of inner chamber and is provided with Compress Spring;
Stop steel ball and rotate extension bar groove suitable;
Rotating extension bar through the internal thread orientation of the outer spiral shell mosquito of grip shank and attaching nut is connected, and the bead simultaneously rotating the jut of extension bar and attaching nut is suitable and spacing to rotating extension bar;
Move back drill shank that silk bores to be placed in and to rotate the inner chamber of extension bar, the cavity wherein rotating extension bar is provided with the fastening locating hole for installing moving back silk and creep into the locking nut of the fastening location of row;
Move back drill bit that silk bores comprise drill end chisel edge, for the main cutting edge that cuts and rear cutting edge, wherein, the bottom of cutting edge is greater than the bottom of main cutting edge to cross section vertical range to cross section vertical range.
Further, as above-mentioned specific purpose tool, wherein the pommel of grip shank is connected with common electric hand drill.
The invention has the beneficial effects as follows:
1. the invention solves for the excessive and disconnected bolt within the workpiece of pretightning force or the problem owing to dismantling the improper Bolt dismantling difficulty causing bolt head to damage.
2. present invention accomplishes after typical products in mass production occurs that in assembling process bolt head fractures, can pull down rapidly and scrap bolt, need not parts be scrapped, not affect normally carrying out of assembly line.
3. its restriction that is easy to use, that be not subject to dismounting place and workpiece size of the present invention, can dismantle the bolt of all size model by changing the specification of moving back silk brill.
4. its compact conformation of the present invention, is provided with self-locking overload protection function, has overload protection function to operating personnel.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is rotation connection rod structure schematic diagram of the present invention;
Fig. 3 is attaching nut's structural representation of the present invention;
Fig. 4 is grip shank structural representation of the present invention;
Fig. 5 is the drill bit plan structure schematic diagram moving back silk and bore of the present invention;
Fig. 6 is the main TV structure schematic diagram of drill bit moving back silk and bore of the present invention;
Reference numeral in above-mentioned figure:
1-moves back silk and bores; 2-rotates extension bar; 3-attaching nut; 4-grip shank; 5-Compress Spring; 6-look nut; 7-pressure spring; 8-stop steel ball; 9-locking nut; 101-chisel edge; 102-main cutting edge; Cutting edge after 103-; 104-cross section; 201-groove; 202-jut; The fastening locating hole of 203-; 204-inner chamber; 301-internal thread; 302-bead; 401-pommel; 402-locating hole; The outer spiral shell mosquito of 403-; 404-inner chamber.
Detailed description of the invention
Be further described below in conjunction with accompanying drawing mark:
Fig. 1 is overall structure schematic diagram of the present invention
Specific purpose tool comprises: move back silk brill 1, rotation extension bar 2, attaching nut 3, grip shank 4, Compress Spring 5, look nut 6, pressure spring 7, stop steel ball 8 and locking nut 9 and form.Move back silk bore 1 it be that this cover moves back the critical piece of the specific purpose tool of bolt, move back silk and bore and spend different from common brill, its cutting edge has three parts, plays the effect of drilling centering, hook bolt and increasing rotating torque respectively.When dismantling the excessive and disconnected bolt within the workpiece of pretightning force, boring 1 and on bolt, apply normal pressure by moving back silk produce enough removal torque.Its other end is fixed on and rotates on extension bar 2, and locking nut 9 carries out pretension to moving back silk brill 1.Rotate extension bar 2 with grip shank 4 by stop steel ball 8 driving torque.Stop steel ball 8 is equipped with pressure spring 7 and look nut 6 produces different normal pressures by the adjustment of look nut 6 by pressure spring 7 pairs of stop steel balls 8, thus produces variable driving torque, also operating personnel are served to the effect of overload protection simultaneously.Attaching nut 3 adopts screw thread by grip shank 4 and rotates extension bar 2 and carry out orientation and to be connected and spacing.When the bolt that will dismantle exits, normal pressure exceedes the pretightning force of stop steel ball 8, and rotate extension bar 2 and move under the pretightning force effect of carrying Compress Spring 5 while rotating backward relative to grip shank 4, bolt exits simultaneously.A kind of economical and practical specific purpose tool moving back bolt is completed above after each Assembly of the parts.
Fig. 2 is rotation connection rod structure schematic diagram of the present invention, the rotation extension bar 2 being placed in the one end in grip shank 4 is provided with two grooves 201 and for spacing jut 202, have in the rotation extension bar 2 being placed in the outer end in grip shank 4 and move back for filling the inner chamber 204 that silk bores the drillstock of 1, the cavity of inner chamber is provided with the fastening locating hole for assembling locking nut 9.
Fig. 3 is attaching nut's structural representation of the present invention, and attaching nut 3 is provided with the internal thread 301 for matching with the outer spiral shell mosquito 403 of grip shank 4, and attaching nut 3 is provided with for matching with the jut 202 rotated on extension bar 2 spacing to rotation extension bar 2.
Fig. 4 is grip shank structural representation of the present invention, and grip shank 4 has pommel 401, cavity 404, and pommel 401 can external drive unit (as electric hand drill), and when drive unit (as electric hand drill) reversely rotates, grip shank 4 also reversely rotates; Cavity is provided with two locating holes 402 and from inside to outside installs stop steel ball 8, pressure spring 7 and look nut 6 successively, the outside of the bottom of cavity have match with internal thread 301 outer spiral shell mosquito 403.
Fig. 5 is the drill bit plan structure schematic diagram moving back silk and bore of the present invention, and this figure is chisel edge 101 from the top of drill bit, the main cutting edge 102 on drill bit and rear cutting edge 103.
Fig. 6 is the main TV structure schematic diagram of drill bit moving back silk and bore of the present invention, rear cutting edge 103 in figure is h to the vertical range in the cross section 104 of drill bit, cross section 104 be in the present invention drill bit move back the cross section that silk bores 1 targeting part, be exactly in the present invention the bottom point of main cutting edge 102 perpendicular to move back silk bore 1 section.
The cross section 104 of common fluted drill in general for rear cutting edge 103 bottom point perpendicular to moving back the section that silk bores 1.
The present invention has vertical range to be h due to rear cutting edge 103 and cross section 104, like this when electric hand drill reversely rotates, bit part enters the bolt of dismounting, the countertorque obtained at rear cutting edge 103 is comparatively large, bores 1 when countertorque is greater than and on bolt, applies normal pressure produce enough removal torque and exit bolt by moving back silk.
The specific purpose tool moving back bolt of the present invention's design, its compact conformation, easy to use, not by the restriction of assembly yard and workpiece size, only this instrument need be contained on common electric hand drill and adopt counterclockwise drilling (reversion) facing to the bolt damaged, just the bolt of damage can be taken out rapidly, not affect assembling progress.
Claims (2)
1. move back a specific purpose tool for bolt, it is characterized in that, described specific purpose tool comprises: move back silk and bore (1), rotate extension bar (2), attaching nut (3) and grip shank (4);
Described grip shank (4) comprises pommel (401), two locating holes (402), outer spiral shell mosquito (403) and inner chambers (404);
Described locating hole (402) is provided with from inside to outside in installing stop steel ball (8), pressure spring (7) and look nut (6) successively; The adjustment of wherein said look nut (6) can make described pressure spring (7) produce different normal pressures to described stop steel ball (8);
One end of described rotation extension bar (2) is placed in the inner chamber of described grip shank (4), is provided with Compress Spring (5) between the bottom wherein rotating extension bar (2) and described inner chamber (404);
The groove (201) of described stop steel ball (8) and described rotation extension bar (2) is suitable;
Internal thread (301) orientation of described rotation extension bar (2) through the outer spiral shell mosquito (403) of described grip shank (4) and attaching nut (3) is connected, while the jut (202) of described rotation extension bar (2) and the bead (302) of described attaching nut (3) suitable and spacing to described rotation extension bar (2);
The described drill shank moving back silk brill (1) is placed in the inner chamber (204) of described rotation extension bar (2), and the cavity of wherein said rotation extension bar (2) is provided with and bores to the described silk that moves back the fastening locating hole (203) that (1) carries out the locking nut (9) of fastening location for installing;
Described move back silk bore (1) drill bit comprise drill end chisel edge (101), for the main cutting edge (102) that cuts and rear cutting edge (103), wherein the bottom of cutting edge (103) is greater than the vertical range of bottom to cross section (104) of main cutting edge (102) to the vertical range of cross section (104) afterwards;
Described cross section (104) is described main cutting edge (102) bottom point perpendicular to the section moving back silk and bore (1).
2. specific purpose tool as claimed in claim 1, it is characterized in that, the pommel (401) of the grip shank (4) of described specific purpose tool is connected with common electric hand drill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410333016.4A CN104117966B (en) | 2014-07-15 | 2014-07-15 | A kind of removal tool special moving back bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410333016.4A CN104117966B (en) | 2014-07-15 | 2014-07-15 | A kind of removal tool special moving back bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104117966A CN104117966A (en) | 2014-10-29 |
| CN104117966B true CN104117966B (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410333016.4A Active CN104117966B (en) | 2014-07-15 | 2014-07-15 | A kind of removal tool special moving back bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104117966B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104889722B (en) * | 2015-06-03 | 2017-10-20 | 苏州博众精工科技有限公司 | A kind of aspirated-air type screwdriver of use holding connecting bolt screwdriver bit |
| CN107378863B (en) * | 2017-07-07 | 2023-10-31 | 西安北方光电科技防务有限公司 | Conversion device and application method thereof |
| CN109967962B (en) * | 2017-12-27 | 2023-08-15 | 核动力运行研究所 | Round nut breaking tool and use method thereof |
| CN109083902B (en) * | 2018-08-23 | 2020-06-19 | 安徽昌南电气科技有限公司 | Photosensitive sensor for switch cabinet safety protection device and preparation process thereof |
| CN110900721A (en) * | 2019-11-26 | 2020-03-24 | 江苏刘一刀精密机械有限公司 | Drilling equipment for wood working |
| CN111168624B (en) * | 2020-02-22 | 2024-05-17 | 上海阿为特精密机械股份有限公司 | Small-size adjustable press |
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| CN1411404A (en) * | 2000-03-06 | 2003-04-16 | P·J·贝尔加莫 | Bit for removing damaged screws |
| DE202005011920U1 (en) * | 2005-07-29 | 2005-10-20 | Yu, Hong-Chow, Ta-Li | Variable length hand tool especially screwdriver has blocking grips in a tapering bore for infinite adjustment |
| CN2758026Y (en) * | 2004-12-15 | 2006-02-15 | 陈柏伸 | Burr drill for dismounting damaged screw |
| DE202008003131U1 (en) * | 2008-03-05 | 2008-09-04 | Rajotte, Jacques, Hood River | screwdriver device |
| CN201147858Y (en) * | 2006-06-09 | 2008-11-12 | 中国江苏天工工具有限公司 | High-performance strong twist drill |
| CN202388439U (en) * | 2011-12-31 | 2012-08-22 | 宁波华德汽车零部件有限公司 | Magnetism conversion device |
| CN202781043U (en) * | 2012-08-03 | 2013-03-13 | 許紹賢 | Screwdriver bit for taking out disintegrating screw |
| CN103128346A (en) * | 2013-03-19 | 2013-06-05 | 大连远东企业集团有限公司 | Twist drill with spiral cutting back tool |
| CN204019479U (en) * | 2014-07-15 | 2014-12-17 | 湖北旭扬工贸有限公司 | A kind ofly move back the removal tool special that bolt is used |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030136228A1 (en) * | 2002-01-22 | 2003-07-24 | Kuo Chen Liu | Tool having a structure for removing damaged screws |
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2014
- 2014-07-15 CN CN201410333016.4A patent/CN104117966B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1411404A (en) * | 2000-03-06 | 2003-04-16 | P·J·贝尔加莫 | Bit for removing damaged screws |
| CN2758026Y (en) * | 2004-12-15 | 2006-02-15 | 陈柏伸 | Burr drill for dismounting damaged screw |
| DE202005011920U1 (en) * | 2005-07-29 | 2005-10-20 | Yu, Hong-Chow, Ta-Li | Variable length hand tool especially screwdriver has blocking grips in a tapering bore for infinite adjustment |
| CN201147858Y (en) * | 2006-06-09 | 2008-11-12 | 中国江苏天工工具有限公司 | High-performance strong twist drill |
| DE202008003131U1 (en) * | 2008-03-05 | 2008-09-04 | Rajotte, Jacques, Hood River | screwdriver device |
| CN202388439U (en) * | 2011-12-31 | 2012-08-22 | 宁波华德汽车零部件有限公司 | Magnetism conversion device |
| CN202781043U (en) * | 2012-08-03 | 2013-03-13 | 許紹賢 | Screwdriver bit for taking out disintegrating screw |
| CN103128346A (en) * | 2013-03-19 | 2013-06-05 | 大连远东企业集团有限公司 | Twist drill with spiral cutting back tool |
| CN204019479U (en) * | 2014-07-15 | 2014-12-17 | 湖北旭扬工贸有限公司 | A kind ofly move back the removal tool special that bolt is used |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104117966A (en) | 2014-10-29 |
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