CN106670859A - Drilling fixture for end face of cam shaft - Google Patents

Drilling fixture for end face of cam shaft Download PDF

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Publication number
CN106670859A
CN106670859A CN201710154477.9A CN201710154477A CN106670859A CN 106670859 A CN106670859 A CN 106670859A CN 201710154477 A CN201710154477 A CN 201710154477A CN 106670859 A CN106670859 A CN 106670859A
Authority
CN
China
Prior art keywords
camshaft
seat
diameter
loose pin
pin
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
Application number
CN201710154477.9A
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Chinese (zh)
Inventor
杜诗雨
Original Assignee
杜诗雨
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 杜诗雨 filed Critical 杜诗雨
Priority to CN201710154477.9A priority Critical patent/CN106670859A/en
Publication of CN106670859A publication Critical patent/CN106670859A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06Work-clamping means
    • B23Q3/062Work-clamping means adapted for holding workpieces having a special form or being made from a special material

Abstract

The invention discloses a drilling fixture for an end face of a cam shaft. The drilling fixture comprises a bottom plate, and a vertically arranged vertical plate is mounted on the bottom plate; a fixed locating seat is mounted at one end of the vertical plate; a movable locating seat is mounted at the other end of the vertical plate; the fixed locating seat comprises a fixed locating pin which faces the movable locating seat; the end part of the fixed locating pin is provided with a frustum matched with a taper hole in the end part of one end of the to-be-located cam shaft; the movable locating seat comprises a telescopic mechanism which can extend and retract in the vertical direction; a movable locating pin is arranged on the telescopic mechanism; the movable locating pin and the fixed locating pin are opposite to each other and are coaxially arranged; and the end part of the movable locating pin is provided with a frustum matched with a taper hole in the end part of the other end of the to-be-located cam shaft. The drilling fixture has the advantages that form and position errors of the excircle surface of the cam shaft can be prevented from affecting the processing precision, the processing precision is improved, the processing procedure is simplified, the production cost is reduced, the structure is simple, the operation is convenient, and the like.

Description

A kind of cam axial end boring grab
Technical field
The present invention relates to engine component processing technique field, in particular to a kind of cam axial end boring grab.
Background technology
As shown in FIG. 1 to 3,60 ° of taper holes are respectively provided with the two ends axle center of camshaft, are now required in the outer of its one end The dowel hole of a φ 5 and the oilhole of four φ 4 are bored on nose circle face, it is desirable to axis of the dowel hole hole heart apart from camshaft Distance is 101 ° 20 ' ± 2 ° for the angle between 11 ± 0.04mm, and the line of the two and the positioning boss center line of camshaft.
Existing clamp for machining is using two V-arrangement locating pieces for being in 90 ° respectively to the φ 23.2 at the two ends on camshaft Periphery is supported positioning to ensure repetitive positioning accuracy of the product on lathe.Two peripheries of φ 23.2 on camshaft Generally processed using smart car or precision grinding process, but in smart car operation, because lathe tool weares and teares, or outer round surface hardness is uneven It is even, cause this size of φ 23.2 and cylindrical bounce overproof so that centre-to-centre spacing fluctuates, artificial monitoring is more difficult.Produce in process Raw iron pin is sticked in V-shaped positioning surface, or excircle of workpiece is not clean, if operator does not blow clean, can cause positioning It is inaccurate, will also result in centre-to-centre spacing fluctuation.So as to cause the position error of camshaft larger so that the precision of cam axial end drilling Requirement cannot be met.
The content of the invention
For above-mentioned the deficiencies in the prior art, the technical problem to be solved is:How providing one kind can keep away The Form and position error for exempting from the periphery of camshaft produces impact to machining accuracy, is conducive to improving machining accuracy, simplifies manufacturing procedure, Be conducive to saving the cam axial end boring grab of production cost.
In order to solve above-mentioned technical problem, following technical scheme is present invention employs:
A kind of cam axial end boring grab, it is characterised in that including base plate, is provided with what is be vertically arranged on the base plate Riser, one end of the riser is provided with stationary positioned seat, and the other end is provided with activity orientation seat, and the stationary positioned seat includes Towards the fixed locating stud that the activity orientation seat is arranged, the end of the fixed locating stud has and camshaft one end to be positioned End the frustum that matches of taper hole;The activity orientation seat include can the vertically flexible telescoping mechanism in direction, it is described There is loose pin that is relative with the fixed locating stud and being coaxially disposed, the end of the loose pin on telescoping mechanism With the frustum matched with the taper hole of the end of the camshaft other end to be positioned;The loose pin can be with described flexible Mechanism's vertically direction movement, with the maximum spacing between the fixed locating stud more than camshaft to be positioned length, and most Small Distance can be by camshaft fixed clamp to be positioned;Be additionally provided with limit base on the riser, the limit base with it is to be positioned The positioning boss position that camshaft is clamped in camshaft when between the fixed locating stud and loose pin is corresponding, and The positioning boss of camshaft can rotate and abut on the top surface of the positioning seat towards the limit base.
Using said structure, the fixed locating stud and loose pin being oppositely arranged by vertically direction can be easily Camshaft is fixed, above-mentioned fixed form takes full advantage of existing taper hole in cam axial end, so as to reduce outside camshaft The smart car or precision grinding process of disc, reduces processing cost.Further, since the taper hole at camshaft two ends is coaxially disposed, and it is fixed Alignment pin and loose pin also to be coaxially disposed, using above-mentioned positioning mode, can avoid the morpheme of the periphery of camshaft Error on Machining Accuracy produces impact, is conducive to improving machining accuracy.
Used as optimization, the activity orientation seat also includes the location key seat being arranged on the telescopic end of the telescoping mechanism, There is the stepped hole that vertically arranges on the location key seat, the stepped hole include near the fixed locating stud arrange compared with Reduced diameter section and the larger-diameter section arranged away from the fixed locating stud;
The middle part of the loose pin has the radially prominent positive stop lug boss annular in shape for being formed, described spacing The diameter of boss less than the stepped hole larger-diameter section diameter, the diameter of the frustum place section of the loose pin with The diameter of the diameter segment of the stepped hole is consistent;The frustum of the loose pin is along towards the fixed locating stud Direction passes the diameter segment of the stepped hole;
The location key seat is located at the side at the larger-diameter section place of the stepped hole and is fixedly installed cover plate, the lid There is the through hole that passes of one end for being available for the loose pin away from frustum on plate, the positive stop lug boss of the loose pin with The elasticity for the frustum of the loose pin to be ejected the diameter segment of the stepped hole is provided between the cover plate Part.
Using above-mentioned setting, by telescoping mechanism location key seat can be driven to move to makes loose pin and stationary positioned Less than after cam shaft length, and loose pin compression elastic piece, distance therebetween is more than camshaft to the distance between pin The position of length.So, when clamping camshaft, by one end alignment activity alignment pin of camshaft and force compresses bullet can be used Property part, make the other end be aligned fixed locating stud, camshaft is tentatively clamped between using the elastic force of elastic component, Ran Houcao Make telescoping mechanism movement, be finally completed the positioning clamping of camshaft.Using said apparatus, a workman is only needed to complete cam The preliminary clamping of axle, is conducive to simplifying operating procedure, saves human cost, there is provided operating efficiency.
Used as optimization, the elastic component is the helical spring being sleeved on the loose pin, the two of the helical spring End is connected to respectively on the positive stop lug boss and the cover plate.
In preliminary clamp cam axle, camshaft can be rotated along the direction away from the limit base, drive activity is determined Position pin makes helical spring produce torsional deflection.So, when camshaft is tentatively clamped between fixed locating stud and loose pin When, under the twisting resistance effect of spring, positioning boss can be made to be close on the top surface of limit base.So that the positioning of camshaft It is more accurate.
Used as optimization, the stationary positioned seat is located at the upper end of the riser, and the activity orientation seat is located at the riser Lower end.
So, during clamping camshaft, downward compression elastic piece easily exerts a force.Operation is easier.
As optimization, mistake proofing block is additionally provided with the riser, the mistake proofing block is located at the fixed locating stud and activity On the axis direction of alignment pin, the mistake proofing block away from one end of the riser there is the width of rectangular channel, the rectangular channel to be 23.2~23.5mm, and the rectangular channel is corresponding with the periphery positions of a diameter of φ 23.2 on the camshaft after clamping, makes The periphery passes through the rectangular channel.
Using the setting of above-mentioned mistake proofing block, the camshaft of other models of the installation of mistake can be avoided, be conducive to improving and produce The qualification rate of product.
Used as optimization, the telescoping mechanism is the cylinder that vertically direction is arranged.
In sum, the Form and position error that the present invention has the periphery that can avoid camshaft produces shadow to machining accuracy Ring, be conducive to improving machining accuracy, simplify manufacturing procedure, be conducive to saving production cost, simple structure is easy to operate etc. excellent Point.
Description of the drawings
Fig. 1 is the structural representation of camshaft to be positioned.
Fig. 2 be Fig. 1 in A to structural representation.
Fig. 3 is the cross section structure diagram of E-E in Fig. 1.
Fig. 4 is the structural representation of the embodiment of the present invention.
Fig. 5 is the cross section structure diagram of Fig. 4.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is described in further detail.
When being embodied as:As shown in Figure 4 and Figure 5, a kind of cam axial end boring grab, including base plate 1, the base plate 1 On the riser 2 being vertically arranged is installed, one end of the riser 2 is provided with stationary positioned seat 3, and the other end is provided with activity orientation Seat 4, the stationary positioned seat 3 includes the fixed locating stud 31 arranged towards the activity orientation seat 4, the fixed locating stud 31 End there is the frustum that matches with the taper hole of the end of camshaft one end to be positioned;The activity orientation seat 4 includes can Vertically the flexible telescoping mechanism 41 in direction, has relative with the fixed locating stud 31 and coaxially sets on the telescoping mechanism 41 The loose pin 42 put, the end of the loose pin 42 has the taper hole phase with the end of the camshaft other end to be positioned The frustum of matching;The loose pin 42 can be with the vertically direction movement of the telescoping mechanism 41, with the stationary positioned Maximum spacing between pin 31 is more than the length of camshaft to be positioned, and minimum spacing can be by camshaft geometrical clamp to be positioned Hold;Limit base 5 is additionally provided with the riser 2, the limit base 5 is clamped in the fixed locating stud 31 with camshaft to be positioned The positioning boss position of camshaft is corresponding when and loose pin 42 between, and the positioning boss of camshaft being capable of direction The limit base 5 rotates and abuts on the top surface of the positioning seat 5.
Using said structure, the fixed locating stud and loose pin being oppositely arranged by vertically direction can be easily Camshaft is fixed, above-mentioned fixed form takes full advantage of existing taper hole in cam axial end, so as to reduce outside camshaft The smart car or precision grinding process of disc, reduces processing cost.Further, since the taper hole at camshaft two ends is coaxially disposed, and it is fixed Alignment pin and loose pin also to be coaxially disposed, using above-mentioned positioning mode, can avoid the morpheme of the periphery of camshaft Error on Machining Accuracy produces impact, is conducive to improving machining accuracy.
During enforcement, the activity orientation seat 4 also includes the location key seat being arranged on the telescopic end of the telescoping mechanism 41 43, there is the stepped hole for vertically arranging on the location key seat 43, the stepped hole is included near the fixed locating stud 31 The diameter segment of setting and the larger-diameter section arranged away from the fixed locating stud 31;
The middle part of the loose pin 42 has the radially prominent positive stop lug boss annular in shape for being formed, the limit Position boss diameter less than the stepped hole larger-diameter section diameter, the frustum place section of the loose pin 42 it is straight Footpath is consistent with the diameter of the diameter segment of the stepped hole;The frustum of the loose pin 42 is along fixed towards the fixation The direction of position pin 31 passes the diameter segment of the stepped hole;
The location key seat 43 is located at the side at the larger-diameter section place of the stepped hole and is fixedly installed cover plate, described There is the through hole that passes of one end for being available for the loose pin 42 away from frustum on cover plate, the loose pin 42 it is spacing The small diameter for the frustum of the loose pin 42 to be ejected the stepped hole is provided between boss and the cover plate The elastic component of section.
Using above-mentioned setting, by telescoping mechanism location key seat can be driven to move to makes loose pin and stationary positioned Less than after cam shaft length, and loose pin compression elastic piece, distance therebetween is more than camshaft to the distance between pin The position of length.So, when clamping camshaft, by one end alignment activity alignment pin of camshaft and force compresses bullet can be used Property part, make the other end be aligned fixed locating stud, camshaft is tentatively clamped between using the elastic force of elastic component, Ran Houcao Make telescoping mechanism movement, be finally completed the positioning clamping of camshaft.Using said apparatus, a workman is only needed to complete cam The preliminary clamping of axle, is conducive to simplifying operating procedure, saves human cost, there is provided operating efficiency.
During enforcement, the elastic component is the helical spring being sleeved on the loose pin 42, the two of the helical spring End is connected to respectively on the positive stop lug boss and the cover plate.
In preliminary clamp cam axle, camshaft can be rotated along the direction away from the limit base, drive activity is determined Position pin makes helical spring produce torsional deflection.So, when camshaft is tentatively clamped between fixed locating stud and loose pin When, under the twisting resistance effect of spring, positioning boss can be made to be close on the top surface of limit base.So that the positioning of camshaft It is more accurate.
During enforcement, the stationary positioned seat 3 is located at the upper end of the riser 2, and the activity orientation seat 4 is located at the riser 2 lower end.
So, during clamping camshaft, downward compression elastic piece easily exerts a force.Operation is easier.
During enforcement, mistake proofing block 6 is additionally provided with the riser 2, the mistake proofing block 6 is located at the fixed locating stud 31 and lives On the axis direction of dynamic alignment pin 42, the mistake proofing block 6 has rectangular channel away from one end of the riser 2, the rectangular channel Width is 23.2~23.5mm, and the rectangular channel is relative with the periphery positions of a diameter of φ 23.2 on the camshaft after clamping Should, make the periphery pass through the rectangular channel.
Using the setting of above-mentioned mistake proofing block, the camshaft of other models of the installation of mistake can be avoided, be conducive to improving and produce The qualification rate of product.
During enforcement, the cylinder that the telescoping mechanism 41 is arranged for vertically direction.
Presently preferred embodiments of the present invention is the foregoing is only, not with the present invention to limit, all essences in the present invention Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.

Claims (6)

1. a kind of cam axial end boring grab, it is characterised in that including base plate (1), be provided with the base plate (1) and vertically set The riser (2) put, one end of the riser (2) is provided with stationary positioned seat (3), and the other end is provided with activity orientation seat (4), institute State the fixed locating stud (31) that stationary positioned seat (3) includes being arranged towards the activity orientation seat (4), the fixed locating stud (31) end has the frustum matched with the taper hole of the end of camshaft one end to be positioned;Activity orientation seat (4) bag Include can the vertically flexible telescoping mechanism (41) in direction, have and the fixed locating stud (31) on the telescoping mechanism (41) Loose pin (42) that is relative and being coaxially disposed, the end of the loose pin (42) is with another with camshaft to be positioned The frustum that the taper hole of the end at end matches;The loose pin (42) can be with the telescoping mechanism (41) vertically direction It is mobile, with the maximum spacing between the fixed locating stud (31) more than camshaft to be positioned length, and minimum spacing can By camshaft fixed clamp to be positioned;Limit base (5) is additionally provided with the riser (2), the limit base (5) is convex with to be positioned Wheel shaft is clamped in the positioning boss position phase of camshaft when between the fixed locating stud (31) and loose pin (42) Correspondence, and the positioning boss of camshaft can rotate and abut in the top surface of the positioning seat (5) towards the limit base (5) On.
2. cam axial end boring grab as claimed in claim 1, it is characterised in that the activity orientation seat (4) also includes The location key seat (43) being arranged on the telescopic end of the telescoping mechanism (41), has on the location key seat (43) and vertically sets The stepped hole put, the stepped hole includes the diameter segment arranged near the fixed locating stud (31) and away from described solid Determine the larger-diameter section of alignment pin (31) setting;
The middle part of the loose pin (42) has the radially prominent positive stop lug boss annular in shape for being formed, described spacing The diameter of boss less than the stepped hole larger-diameter section diameter, the frustum place section of the loose pin (42) it is straight Footpath is consistent with the diameter of the diameter segment of the stepped hole;The frustum of the loose pin (42) is along towards the fixation The direction of alignment pin (31) passes the diameter segment of the stepped hole;
The location key seat (43) is fixedly installed cover plate, the lid positioned at the side that the larger-diameter section of the stepped hole is located There is the through hole for being available for the loose pin (42) to pass away from one end of frustum, the limit of the loose pin (42) on plate It is provided between position boss and the cover plate for the frustum of the loose pin (42) to be ejected into the less of the stepped hole The elastic component of diameter segment.
3. cam axial end boring grab as claimed in claim 2, it is characterised in that the elastic component is to be sleeved on the work Helical spring on dynamic alignment pin (42), the two ends of the helical spring are connected to respectively on the positive stop lug boss and the cover plate.
4. cam axial end boring grab as claimed in claim 2, it is characterised in that the stationary positioned seat (3) is positioned at institute State the upper end of riser (2), lower end of the activity orientation seat (4) positioned at the riser (2).
5. cam axial end boring grab as claimed in claim 1, it is characterised in that be additionally provided with the riser (2) anti- Wrong block (6), the mistake proofing block (6) is described on the axis direction of the fixed locating stud (31) and loose pin (42) Mistake proofing block (6) has rectangular channel away from one end of the riser (2), and the width of the rectangular channel is 23.2~23.5mm, and should Rectangular channel is corresponding with the periphery positions of a diameter of φ 23.2 on the camshaft after clamping, makes the periphery pass through the square Shape groove.
6. cam axial end boring grab as claimed in claim 1, it is characterised in that the telescoping mechanism (41) is for vertically The cylinder that direction is arranged.
CN201710154477.9A 2017-03-15 2017-03-15 Drilling fixture for end face of cam shaft Pending CN106670859A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710154477.9A CN106670859A (en) 2017-03-15 2017-03-15 Drilling fixture for end face of cam shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710154477.9A CN106670859A (en) 2017-03-15 2017-03-15 Drilling fixture for end face of cam shaft

Publications (1)

Publication Number Publication Date
CN106670859A true CN106670859A (en) 2017-05-17

Family

ID=58829152

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710154477.9A Pending CN106670859A (en) 2017-03-15 2017-03-15 Drilling fixture for end face of cam shaft

Country Status (1)

Country Link
CN (1) CN106670859A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03239441A (en) * 1990-02-13 1991-10-25 Suzuki Motor Corp Clamper for shaftlike work
JPH1158168A (en) * 1997-08-22 1999-03-02 Komatsu Koki Kk Phase positioning method of camshaft working machine and phase positioning device
CN201257604Y (en) * 2008-09-12 2009-06-17 天润曲轴股份有限公司 Gripper for drilling crank shaft flange hole
CN201295845Y (en) * 2008-10-31 2009-08-26 泰州市宏祥动力机械有限公司 Camshaft gear surface positioning jig
CN202123349U (en) * 2011-08-22 2012-01-25 重庆银钢汽车配件制造有限责任公司 Camshaft press and press mounting error-protection fixture thereof
CN103737352A (en) * 2013-12-17 2014-04-23 柳州瑞明威罗动力机械有限公司 Camshaft keyseat clamp
CN205798970U (en) * 2016-07-01 2016-12-14 内江名正动力机械有限公司 A kind of inclined oil hole of air drill jig
CN206702653U (en) * 2017-03-15 2017-12-05 杜诗雨 A kind of cam axial end boring grab

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03239441A (en) * 1990-02-13 1991-10-25 Suzuki Motor Corp Clamper for shaftlike work
JPH1158168A (en) * 1997-08-22 1999-03-02 Komatsu Koki Kk Phase positioning method of camshaft working machine and phase positioning device
CN201257604Y (en) * 2008-09-12 2009-06-17 天润曲轴股份有限公司 Gripper for drilling crank shaft flange hole
CN201295845Y (en) * 2008-10-31 2009-08-26 泰州市宏祥动力机械有限公司 Camshaft gear surface positioning jig
CN202123349U (en) * 2011-08-22 2012-01-25 重庆银钢汽车配件制造有限责任公司 Camshaft press and press mounting error-protection fixture thereof
CN103737352A (en) * 2013-12-17 2014-04-23 柳州瑞明威罗动力机械有限公司 Camshaft keyseat clamp
CN205798970U (en) * 2016-07-01 2016-12-14 内江名正动力机械有限公司 A kind of inclined oil hole of air drill jig
CN206702653U (en) * 2017-03-15 2017-12-05 杜诗雨 A kind of cam axial end boring grab

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Application publication date: 20170517

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