CN105459012A - Pin pulling device for threaded-hole-free positioning pins - Google Patents
Pin pulling device for threaded-hole-free positioning pins Download PDFInfo
- Publication number
- CN105459012A CN105459012A CN201510913794.5A CN201510913794A CN105459012A CN 105459012 A CN105459012 A CN 105459012A CN 201510913794 A CN201510913794 A CN 201510913794A CN 105459012 A CN105459012 A CN 105459012A
- Authority
- CN
- China
- Prior art keywords
- pin
- collet chuck
- pin pulling
- pulling device
- hole
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
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Classifications
-
- 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
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
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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 provides a pin pulling device for threaded-hole-free positioning pins. The pin pulling device can solve the problems that in the existing pull-out process of clamping positioning pins and ejecting the positioning pins out of combination faces through vice clamps, slippage is prone to happening and the combination faces are damaged, and the assembling quality of diesel engines is ensured. The pin pulling device comprises a pin pulling device rod and a ram. A stop piece is arranged on the pin pulling device rod. The pin pulling device rod is sleeved with the ram. The pin pulling device is characterized in that the pin pulling device comprises a collet chuck; a pin pulling connector is arranged at the end of the pin pulling device rod; an inner conical hole gradually shrinking inwards from the outer side end in the radial direction is formed in the pin pulling connector; the conical face of one end of the collet chuck is arranged in the inner conical hole in a matched manner and is tensioned together with the hole wall of the inner conical hole; the collet chuck and the pin pulling connector are fastened through a locking nut; a to-be-pulled positioning pin is inserted in the other end of the collet chuck during pin pulling operation; and the to-be-pulled positioning pin and the collet chuck are fastened through a locking nut.
Description
Technical field
The present invention relates to the mounting or dismounting frock field of plant equipment, be specially the pin pulling out device of unthreaded hole alignment pin.
Background technology
What conventional pin removal (see figure 1) was used for the alignment pin with axial threaded hole pulls out operation, be threaded with the screwed hole of alignment pin by the screw rod 31 of pulling pin on joint 3 of end when pulling pin, moved reciprocatingly along pin removal bar 1 by percussion hammer 2 again, simultaneously percussion hammer 2 frequently clashes into block 4 on pin removal bar 1 thus produces impulsive force upwards to pin removal bar 1, and driving alignment pin to move up together by joint 3 of pulling pin, alignment pin is extracted the most at last.
In diesel engine assembling, cylinder head, gear chamber and bell housing and body are all adopt alignment pin to locate when assembling, the GB/T119 straight pin of unthreaded hole generally selected by alignment pin, coordinate for interference fit (M7/m6) is when diesel engine needs to disassemble due to quality problems between straight pin with body, due to the straight pin that alignment pin is unthreaded hole, therefore conventional its joint 3 of pulling pin of pin removal cannot be threaded with straight pin, therefore the alignment pin of conventional pin removal to such unthreaded hole cannot be used to extract operation, mostly to be operator be all uses vice to clamp alignment pin and withstand faying face to extract, it is not only wasted time and energy and the skidding between vice and alignment pin often occurs, even easily there is the phenomenon damaging faying face, affect diesel engine assembly quality.
Summary of the invention
For the problems referred to above, the invention provides the pin pulling out device of unthreaded hole alignment pin, it can solve existing employing vice and clamps alignment pin and to eject in faying face withdrawal process easily skidding out, damage the problem of faying face, ensures diesel engine assembly quality.
The pin pulling out device of unthreaded hole alignment pin, it comprises pin removal bar, percussion hammer, described pin removal bar is provided with block, described percussion hammer is set on described pin removal bar, it is characterized in that: it comprises collet chuck, the end of described pin removal bar is provided with joint of pulling pin, have by the internal taper hole of outboard end radially convergent in described joint of pulling pin, the cone match of described collet chuck one end to be installed in described internal taper hole and with the hole wall tensioner of described internal taper hole, described collet chuck and described pull pin fastening by locking nut between joint, alignment pin to be pulled out when operating of pulling pin inserts the other end of described collet chuck, fastening by described locking nut between alignment pin described to be pulled out and described collet chuck.
Further, described collet chuck is ER collet chuck, and described locking nut is ER locking nut.
Further, the outer peripheral face of described locking nut is provided with handle.
Further, described handle is welded to connect on the outer peripheral face of described locking nut;
Further, a side end of described pin removal bar has screwed hole, described in joint side of pulling pin be provided with threaded shank, described in the pull pin threaded shank of joint be threaded and be installed in described screwed hole.
The pin pulling out device of unthreaded hole alignment pin of the present invention, it comes to be connected with alignment pin to be chosen by the collet chuck installed at fitting end of pulling pin and joint of being pulled pin by locking nut, collet chuck, alignment pin to be chosen are locked, thus ensured reliably extracting of alignment pin.
Accompanying drawing explanation
Fig. 1 is the structural representation of pin pulling out device conventional at present;
Fig. 2 is the pin pulling out device of unthreaded hole alignment pin of the present invention;
Fig. 3 is the structure for amplifying schematic diagram of joint of pulling pin in the pin pulling out device of unthreaded hole alignment pin of the present invention;
Fig. 4 is that A-A in Fig. 3 is to structural representation.
Detailed description of the invention
See Fig. 2, the pin pulling out device of unthreaded hole alignment pin of the present invention, it comprises pin removal bar 1, percussion hammer 2 and collet chuck 6, pin removal bar 1 is provided with block 4, percussion hammer 2 is set on pin removal bar 1, the end of pin removal bar 1 is provided with joint 5 of pulling pin, to pull pin the internal taper hole 51 had in joint 5 by outboard end radially convergent, the cone match of collet chuck 6 one end to be installed in internal taper hole 51 and with the hole wall tensioner of internal taper hole 51, collet chuck 6 and pull pin fastening by locking nut 7 between joint, alignment pin to be pulled out when operating of pulling pin inserts the other end of collet chuck, fastening by locking nut 7 between alignment pin to be pulled out and collet chuck 6, collet chuck 6 is ER collet chuck, and locking nut 7 is ER nut, the outer peripheral face of locking nut 7 is welded to connect two handles 8, has been convenient to the fastening of locking nut 7, see Fig. 3 and Fig. 4, a side end of pin removal bar 1 has screwed hole 11, and joint 5 side of pulling pin is provided with threaded shank 52, and the threaded shank 52 of joint of pulling pin is threaded and is installed in screwed hole 11.
Specifically describe below and adopt pin pulling out device of the present invention to choose the course of work of unthreaded hole alignment pin: first joint 5 of pulling pin is taken out in the screwed hole 11 of pin removal bar 1 end, corresponding ER collet chuck 6 is selected according to the size of alignment pin to be chosen, the internal taper hole 51 one end conical surface of ER collet chuck being inserted joint 5 of pulling pin is interior also with locking nut 7 pretension, now pull pin between joint 5 and ER collet chuck 6 and do not lock completely, then the other end being installed on the ER collet chuck 6 of pulling pin on joint 5 is inserted on alignment pin to be chosen, to pull pin with a spanner clamping the flat gesture position 53 of joint 5, rotate with spanner clamping locking nut 7 thus joint 5 of pulling pin, ER collet chuck 6, wait choosing alignment pin locking (when being welded with handle 8 when the outer peripheral face of locking nut 7, directly can be about to by promoting to carry out rotational lock nut 78 joint 5 of pulling pin, ER collet chuck 6, alignment pin locking to be chosen), then being placed on by percussion hammer 2 pin removal bar 1 is threadedly connected to by pin removal bar 1 again pulls pin in the threaded shank 52 of joint 5 one end, move around percussion hammer 2 make percussion hammer 2 clash into block 4 on pin removal bar 1, thus impulsive force is upwards produced to pin removal bar 1, and by joint 5 of pulling pin, ER collet chuck 6 drives alignment pin to be chosen to move up together, alignment pin is extracted the most at last, unclamp locking nut 7 again alignment pin to be taken off.
Claims (5)
1. the pin pulling out device of unthreaded hole alignment pin, it comprises pin removal bar, percussion hammer, described pin removal bar is provided with block, described percussion hammer is set on described pin removal bar, it is characterized in that: it comprises collet chuck, the end of described pin removal bar is provided with joint of pulling pin, have by the internal taper hole of outboard end radially convergent in described joint of pulling pin, the cone match of described collet chuck one end to be installed in described internal taper hole and with the hole wall tensioner of described internal taper hole, described collet chuck and described pull pin fastening by locking nut between joint, alignment pin to be pulled out when operating of pulling pin inserts the other end of described collet chuck, fastening by described locking nut between alignment pin described to be pulled out and described collet chuck.
2. the pin pulling out device of unthreaded hole alignment pin according to claim 1, is characterized in that: described collet chuck is ER collet chuck, and described locking nut is ER locking nut.
3. the pin pulling out device of unthreaded hole alignment pin according to claim 1 and 2, is characterized in that: the outer peripheral face of described locking nut is provided with handle.
4. the pin pulling out device of unthreaded hole alignment pin according to claim 3, is characterized in that: described handle is welded to connect on the outer peripheral face of described locking nut.
5. the pin pulling out device of unthreaded hole alignment pin according to claim 4, it is characterized in that: a side end of described pin removal bar has screwed hole, described joint side of pulling pin is provided with threaded shank, described in the pull pin threaded shank of joint be threaded and be installed in described screwed hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510913794.5A CN105459012A (en) | 2015-12-12 | 2015-12-12 | Pin pulling device for threaded-hole-free positioning pins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510913794.5A CN105459012A (en) | 2015-12-12 | 2015-12-12 | Pin pulling device for threaded-hole-free positioning pins |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105459012A true CN105459012A (en) | 2016-04-06 |
Family
ID=55597398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510913794.5A Pending CN105459012A (en) | 2015-12-12 | 2015-12-12 | Pin pulling device for threaded-hole-free positioning pins |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105459012A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112320721A (en) * | 2020-10-22 | 2021-02-05 | 中船澄西船舶修造有限公司 | Cork extractor |
| CN114346957B (en) * | 2022-02-21 | 2023-09-29 | 北京中科宇航技术有限公司 | Memory alloy pin puller |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201524997U (en) * | 2009-11-16 | 2010-07-14 | 东风汽车股份有限公司 | Special pin pulling assistive device for blind pin |
| CN202318210U (en) * | 2011-11-19 | 2012-07-11 | 中国石油化工股份有限公司胜利油田分公司孤岛采油厂 | Impact-vibration-type puller for pin shaft |
| US20150283689A1 (en) * | 2014-04-07 | 2015-10-08 | Samuel Weaver | Seat puller |
| CN204800553U (en) * | 2015-08-10 | 2015-11-25 | 合肥长源液压股份有限公司 | Smooth rod class piece extracting tool |
| CN205363734U (en) * | 2015-12-12 | 2016-07-06 | 无锡动力工程股份有限公司 | Pin pulling device of unthreaded hole locating pin |
-
2015
- 2015-12-12 CN CN201510913794.5A patent/CN105459012A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201524997U (en) * | 2009-11-16 | 2010-07-14 | 东风汽车股份有限公司 | Special pin pulling assistive device for blind pin |
| CN202318210U (en) * | 2011-11-19 | 2012-07-11 | 中国石油化工股份有限公司胜利油田分公司孤岛采油厂 | Impact-vibration-type puller for pin shaft |
| US20150283689A1 (en) * | 2014-04-07 | 2015-10-08 | Samuel Weaver | Seat puller |
| CN204800553U (en) * | 2015-08-10 | 2015-11-25 | 合肥长源液压股份有限公司 | Smooth rod class piece extracting tool |
| CN205363734U (en) * | 2015-12-12 | 2016-07-06 | 无锡动力工程股份有限公司 | Pin pulling device of unthreaded hole locating pin |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112320721A (en) * | 2020-10-22 | 2021-02-05 | 中船澄西船舶修造有限公司 | Cork extractor |
| CN112320721B (en) * | 2020-10-22 | 2022-04-19 | 中船澄西船舶修造有限公司 | Cork extractor |
| CN114346957B (en) * | 2022-02-21 | 2023-09-29 | 北京中科宇航技术有限公司 | Memory alloy pin puller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160406 |