CN201064864Y - Crank axle grinding inflection indexing attachment - Google Patents

Crank axle grinding inflection indexing attachment Download PDF

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Publication number
CN201064864Y
CN201064864Y CNU2007200261172U CN200720026117U CN201064864Y CN 201064864 Y CN201064864 Y CN 201064864Y CN U2007200261172 U CNU2007200261172 U CN U2007200261172U CN 200720026117 U CN200720026117 U CN 200720026117U CN 201064864 Y CN201064864 Y CN 201064864Y
Authority
CN
China
Prior art keywords
clamp
hole
handle
tapered
indexing
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.)
Expired - Fee Related
Application number
CNU2007200261172U
Other languages
Chinese (zh)
Inventor
宋文友
于建波
胡京开
慈惟红
方平
于新贵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianrun Crankshaft Co Ltd
Original Assignee
Tianrun Crankshaft Co Ltd
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 Tianrun Crankshaft Co Ltd filed Critical Tianrun Crankshaft Co Ltd
Priority to CNU2007200261172U priority Critical patent/CN201064864Y/en
Application granted granted Critical
Publication of CN201064864Y publication Critical patent/CN201064864Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a crank shaft grinding and crutching dividing jig, which comprises a left-right eccentric distance adjusting mechanism and a left-right clamping mechanism, the left jig body is connected with a jig base by a bearing, a dividing mechanism and a positioning mechanism are also arranged on the left jig body, the dividing mechanism is provided with a plurality of tapered location holes distributed on the jig base, a tapered positioning post arranged in a hole of the left jig body, an operating device and a T-shaped bolt compacting and fixing device, and the positioning mechanism includes a positioning plate disposed on the jig body, and a positioning pin and a positioning pin expansion and control device matching with a location hole on the end face of the flange of the crank shaft are arranged on the positioning plate. The utility model has advantages of reasonable structure, simple operation, wide dividing scope, fast operation and time saving, high production efficiency, safety and reliability, and is applied to crank haft grinding and crutching dividing jigs for various crank shaft bell crank phase angle grinding.

Description

Crankshaft milling crutch indexing fixture
Technical field
The utility model relates to a kind of crankshaft milling crutch anchor clamps, specifically a kind of crankshaft milling crutch indexing fixture.
Background technology
We know, bent axle is one of the strength member of load, transferring power that withstands shocks in the engine, its structure and stressed complexity, live load is big, in order to guarantee the stationarity of engine operation, the connecting rod neck phase angle of different bent axles is distributed with 120 °, 60 °, 72 °, 90 °, 180 ° or more.And requirement on machining accuracy is all very high, generally require tolerance+15 '.Having the grinding bent axle that uses on common crankshaft grinding machine now turns the neck anchor clamps and comprises left and right eccentric throw guiding mechanism and clamp mechanism, indexing mechanism etc.The eccentric throw guiding mechanism comprise connect dish, by fixed cover be installed in the leading screw that connects on the dish, be installed on the clamp body with the supporting nut of leading screw, connecing dish one end is installed on the machine tool chief axis, the other end links to each other with clamp body or clamp base by rectangular rail, rotational lead screw drives clamp body by nut or clamp base moves with respect to connecing dish, adjusts the desired eccentric throw of different bent axles; Left and right clamp mechanism is separately positioned on the left and right clamp body, is used for clamping bent axle.A kind of collision block formula calibration structure that is to use of indexing mechanism, precision can guarantee, but can only grind 90 °, 180 °, 120 °, and calibration is limited in scope, and operation is trouble also.Another kind is provided with index dial, adopts the method for index dial to groove, and is not only time-consuming during this structure operation, also is difficult to guarantee required precision.
Summary of the invention
Technical problem to be solved in the utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of rational in infrastructure, simple to operate, and calibration saves time soon, and the production efficiency height is safe and reliable, is suitable for the crankshaft milling crutch indexing fixture of various crankshaft cranks phase angle grinding.
The technical scheme in the invention for solving the above technical problem is: a kind of crankshaft milling crutch indexing fixture, it comprises a left side, a right eccentric throw guiding mechanism and a left side, right clamp mechanism, the eccentric throw guiding mechanism comprises and connects dish, be installed in the leading screw that connects on the dish by fixed cover, be installed on clamp body or the clamp base with the supporting nut of leading screw, connecing dish one end is installed on the machine tool chief axis, the other end links to each other with clamp body or clamp base by rectangular rail, rotational lead screw drives clamp body by nut or clamp base moves with respect to connecing dish, adjust the crankshaft eccentric distance, a left side, right clamp mechanism is separately positioned on a left side, on the right clamp body, it is characterized in that: left clamp body links to each other with clamp base by bearing, also be provided with indexing mechanism and detent mechanism on the clamp body of a left side, indexing mechanism is provided with the some tapered locating hole that is distributed on the clamp base, be installed in tapered reference column and operating means thereof in left clamp body one hole, T type bolt clamping fixture, detent mechanism comprises the positioning disk that is installed on the clamp body, and positioning disk is provided with alignment pin and the alignment pin telescopic control device that cooperates with crankshaft flange end face locating hole.
Tapered reference column operating means on the utility model indexing mechanism comprises handle, compression spring, connecting pin, hinge pin, bearing, the compression spring is installed on the tapered reference column, handle is provided with long shape hole, the connecting pin of reference column outer end links to each other with long shape hole on the handle, and the handle front end is connected with bearing by hinge pin.T type bolt is installed in the bolt hole of the annular T type groove of clamp base and clamp body, and the clamp body outside is provided with the clamp nut that cooperates with T type bolt.The utility model indexing mechanism handle is that initial point rotates with the hinge pin on the bearing, cooperate the tapered reference column of drive flexible with the compression spring, pull out tapered reference column by moving handle, clamp body can rotate with respect to clamp base, tommyhead bolt rotates with clamp body in the annular T type groove of clamp base, corresponding tapered locating hole cooperates the location on tapered reference column and the clamping fixture seat, reach the desired angle of grinding crank throw, compress the clamp nut of tommyhead bolt afterwards, make this fixed angle, make clamp body, positioning disk, clamp mechanism, bent axle is positioned the crank throw position of grinding simultaneously.
Alignment pin telescopic control device on the utility model detent mechanism is to be provided with an eccentric orfice on positioning disk, mounting spring in the eccentric orfice, alignment pin, finger is installed on the alignment pin, finger is installed in the slotted hole of one handle, there is a long shape hole eccentric orfice top, one bearing also is installed on the positioning disk, it is connected with the hinge bolt with the handle front end, as initial point, move handle and on the slotted hole of handle and positioning disk, slide in the long shape hole by finger, drive alignment pin simultaneously and move, under spring action, alignment pin is flexible in the eccentric orfice in the disk body of location, inserts or extracts in the crankshaft flange end face locating hole, and bent axle is realized circumferentially location with respect to clamp body.
The utility model is owing to be provided with indexing mechanism and detent mechanism on left clamp body, against existing technologies, the utility model is rational in infrastructure, simple to operate, calibration is in extensive range, and operation saves time the production efficiency height soon, safe and reliable, be suitable for the crankshaft milling crutch indexing fixture of doing the phase angle grinding of various crankshaft cranks.
Description of drawings
The utility model will be further described below in conjunction with accompanying drawing.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model detent mechanism.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is that the D of Fig. 1 is to schematic diagram.
Fig. 5 is that the F of Fig. 1 is to schematic diagram.
Fig. 6 is that the B-B of Fig. 1 is to schematic diagram.
Fig. 7 is that the H-H of Fig. 6 is to schematic diagram.
Fig. 8 is that the C-C of Fig. 1 is to schematic diagram.
Label among the figure is: connect dish, 2. fixed cover, 3. leading screw, 4. nut 1., 5. clamp base, 6.T type bolt, 6`. annular T type groove, 7. tapered reference column, 7`. tapered locating hole, 8. compression spring, 9. fixed cover, 10. bearing, 11. positioning disk, 12. movable pressing boards, 13. glands, 14. hinge pin, 15. movable pressing board, 16. glands, 17. hinge pin, 18. right clamp bodies, 19. leading screw, 20. connect dish, 21. slips, 22. bent axle, 23. slips, 24. left clamp bodies, 25. finger, 26. springs, 27. alignment pins, 28. the pad flange, 29. bearings, 30. handles, 31. the hinge bolt, 32. hinge pin, 33. hold-down bolts, 34. nut, 35. hinge pin, 36. bearings, 37. hinge pin, 38. connecting pins, 39. handles.
The specific embodiment
As can be seen from Figure 1, a kind of crankshaft milling crutch indexing fixture of the utility model, it comprises left and right eccentric throw guiding mechanism and left and right clamp mechanism, indexing mechanism, detent mechanism etc.Left and right eccentric throw guiding mechanism is positioned at the two ends, the left and right sides of anchor clamps.Wherein left eccentric throw guiding mechanism mainly comprise connect dish 1, be installed in by fixed cover 2 connect the leading screw 3 of dish on 1, be installed on the clamp base 5 with the supporting nut 4 of leading screw 3, connecing dish 1 one ends is installed on the machine tool chief axis, the other end links to each other with clamp body or clamp base 5 by rectangular rail, rotational lead screw 3 drives clamp body by nut 4 or clamp base 5 moves with respect to connecing dish 1, adjusts the crankshaft eccentric distance.Right eccentric throw guiding mechanism is identical with left eccentric throw guiding mechanism basic composition structure, different is not have the sectional fixture base, by fixed cover be installed in connect the leading screw 19 of dish on 20 directly be installed in right clamp body 18 on nut cooperate, rotational lead screw 19 drives right clamp body 18 by nut and moves with respect to connecing dish 20, adjusts the crankshaft eccentric distance.Left and right clamp mechanism is separately positioned on left clamp body 24, the right clamp body 18.The utility model left side clamp body 24 links to each other with the protruding axle of clamp base 5 by bearing 10, also is provided with indexing mechanism and detent mechanism on the left clamp body 24.
As can be seen, the utility model indexing mechanism is provided with the some tapered locating hole 7` that is distributed on the clamp base 5, is installed in tapered reference column 7 and operating means, T type bolt 6 and clamping fixture thereof in left clamp body 24 1 holes from Fig. 1, Fig. 5, Fig. 6, Fig. 7, Fig. 8.Tapered reference column 7 is installed in by fixed cover 9 in the hole of left clamp body 24, according to the desired angle of grinding crank throw, cooperates the location with corresponding tapered locating hole 7` on the clamp base 5.Tapered reference column 7 operating means comprise handle 39, compression spring 8, connecting pin 38, hinge pin 37, bearing 36, compression spring 8 is installed on the tapered reference column 7, handle 39 is provided with long shape hole, the connecting pin 38 of tapered reference column 7 outer ends links to each other with the long shape hole on the handle 39, and handle 39 front ends are connected with bearing 36 by hinge pin 37.Bearing 36 is fixed on the left clamp body 24.T type bolt 6 is installed in the bolt hole of the annular T type groove 6` of clamp base 5 and left clamp body 24, and left clamp body 24 outsides are provided with the clamp nut that cooperates with T type bolt.The utility model is provided with in three bolts hole that three T type bolts 6 are distributed in clamp body altogether, compresses accurate positioning, firmly like this.The utility model indexing mechanism handle 39 is that fulcrum rotates with the hinge pin on the bearing 36, cooperates the tapered reference column 7 of drive to stretch with compression spring 8.Pull out tapered reference column 7 by moving handle 39, left side clamp body 24 can rotate with respect to clamp base 5, tommyhead bolt 6 rotates with left clamp body 24 in the annular T type groove 6` of clamp base, corresponding tapered locating hole 7` cooperates the location on tapered reference column 7 and the clamping fixture seat 5, reach the desired angle of grinding crank throw, screw three clamp nuts that cooperate with tommyhead bolt 6 in left clamp body 24 outsides afterwards, make this fixed angle.Thereby make left clamp body 24, positioning disk 11, clamp mechanism, bent axle 22 be positioned the crank throw position of grinding simultaneously.
As can be seen, the utility model detent mechanism comprises the positioning disk 11 that is installed on the left clamp body 24 from Fig. 1, Fig. 2, Fig. 3, and positioning disk 11 is provided with the alignment pin 27 that cooperates with crankshaft flange end face locating hole and the telescopic control device of alignment pin 27.The alignment pin telescopic control device is to be provided with an eccentric orfice on positioning disk 11, and mounting spring 26, alignment pin 27 in the eccentric orfice are installed finger 25 on the alignment pin 27, and positioning disk 11 eccentric orfices and alignment pin 27 outsides are provided with pad flange 28.Alignment pin 27 is flexible by controls such as handle 30, springs 26.Be provided with a slotted hole in the middle of the handle 30, front end is connected on the bearing 29 by hinge bolt 31, and bearing 29 is fixed on the positioning disk 11.Finger 25 is installed in the slotted hole of handle, and positioning disk 11 eccentric orfices top also has a long shape hole.During operation, with bearing 29 is initial point, moving handle 30 slides in the long shape hole on the slotted hole of handle 30 and positioning disk 11 by finger 25, driving alignment pin 27 simultaneously moves, under spring 26 effects, alignment pin 27 is flexible in the eccentric orfice of positioning disk 11, inserts or extracts in the crankshaft flange end face locating hole, and bent axle 22 is realized circumferentially location with respect to left clamp body 24.
As can be seen, the utility model left side clamp mechanism, right clamp mechanism are separately positioned on left clamp body and the right clamp body from Fig. 1, Fig. 4.Left side clamp mechanism comprises gland 13, movable pressing board 12, hinge pin 14, hold-down bolt 33, clamp nut 34, hinge pin 32, hinge pin 35 etc.Slips 23 is installed on the left clamp body 24, movable pressing board 12 usefulness hinge pin 14 are connected in the gland 13, movable pressing board 12 is capable of automatic aligning by pressure trunnion center, gland 13 1 ends link to each other with clamp body with hinge pin 35, the other end is provided with U type mouth, hold-down bolt 33 removable opening, hold-down bolt 33 also is connected on the clamp body with hinge pin 32, moving gland 13 by hand makes movable pressing board 12 contact a trunnion outer round surface of being buckled, move hold-down bolt 33 again to the U type mouth of gland, tighten clamp nut 34 and promptly clamp bent axle.Right clamp mechanism is provided with gland 16, movable pressing board 15, movable pressing board 15 usefulness hinge pin 17 and is connected in the gland 16, and other has slips 21 to be installed on the right clamp body 18.Other composition and clamp operation process are identical with left clamp mechanism.
During use, the indexing mechanism handle of at first moving on the left clamp body makes tapered reference column cooperate the location angle that turns neck of grinding with the tapered locating hole of clamp base, tighten 3 T type bolt and nuts on the left clamp body again, left clamp body and clamp base are compressed, the crankshaft two end trunnion is put into left and right clamp mechanism, move the detent mechanism handle under spring action, alignment pin is inserted or extract and realize in the crankshaft flange end face locating hole that bent axle circumferentially locatees, depress left and right clamp mechanism gland, compress the two ends trunnion.Start lathe, crankshaft rotating, the emery wheel feeding, but just grinding is ground and is turned neck.After intact one or two of grinding turns neck, unclamp right gland, unclamp 3 T type bolt and nuts on the left clamp body again, move indexing mechanism handle on the left clamp body, another grinds the angle that turns neck to make tapered reference column cooperate the location with the tapered locating hole of clamp base, compresses T type bolt and nut and right gland, get final product grinding, grinding is intact successively thus respectively turn neck after, withdraw from each associated mechanisms, unload bent axle and get final product.

Claims (5)

1. crankshaft milling crutch indexing fixture, it comprises a left side, a right eccentric throw guiding mechanism and a left side, right clamp mechanism, the eccentric throw guiding mechanism comprises and connects dish, be installed in the leading screw that connects on the dish by fixed cover, be installed on clamp body or the clamp base with the supporting nut of leading screw, connecing dish one end is installed on the machine tool chief axis, the other end links to each other with clamp body or clamp base by rectangular rail, rotational lead screw drives clamp body by nut or clamp base moves with respect to connecing dish, adjust the crankshaft eccentric distance, a left side, right clamp mechanism is separately positioned on a left side, on the right clamp body, it is characterized in that: left clamp body links to each other with clamp base by bearing, also be provided with indexing mechanism and detent mechanism on the clamp body of a left side, indexing mechanism is provided with the some tapered locating hole that is distributed on the clamp base, be installed in tapered reference column and operating means thereof in left clamp body one hole, T type bolt clamping fixture, detent mechanism comprises the positioning disk that is installed on the clamp body, and positioning disk is provided with alignment pin and the alignment pin telescopic control device that cooperates with crankshaft flange end face locating hole.
2. crankshaft milling crutch indexing fixture according to claim 1, it is characterized in that: the tapered reference column operating means of indexing mechanism comprises handle, compression spring, connecting pin, hinge pin, bearing, the compression spring is installed on the tapered reference column, handle is provided with long shape hole, the connecting pin of reference column outer end links to each other with long shape hole on the handle, and the handle front end is connected with bearing by hinge pin.
3. crankshaft milling crutch indexing fixture according to claim 1 is characterized in that: T type bolt is installed in the bolt hole of the annular T type groove of clamp base and clamp body, and the clamp body outside is provided with the clamp nut that cooperates with T type bolt.
4. crankshaft milling crutch indexing fixture according to claim 3 is characterized in that: three T type bolts are distributed in three bolts hole of clamp body.
5. crankshaft milling crutch indexing fixture according to claim 1, it is characterized in that: the alignment pin telescopic control device is to be provided with an eccentric orfice on positioning disk, mounting spring, alignment pin in the eccentric orfice, finger is installed on the alignment pin, finger is installed in the slotted hole of one handle, there is a long shape hole eccentric orfice top, and a bearing also is installed on the clamp body, and it is connected with the hinge bolt with the handle front end.
CNU2007200261172U 2007-08-01 2007-08-01 Crank axle grinding inflection indexing attachment Expired - Fee Related CN201064864Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007200261172U CN201064864Y (en) 2007-08-01 2007-08-01 Crank axle grinding inflection indexing attachment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007200261172U CN201064864Y (en) 2007-08-01 2007-08-01 Crank axle grinding inflection indexing attachment

Publications (1)

Publication Number Publication Date
CN201064864Y true CN201064864Y (en) 2008-05-28

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Application Number Title Priority Date Filing Date
CNU2007200261172U Expired - Fee Related CN201064864Y (en) 2007-08-01 2007-08-01 Crank axle grinding inflection indexing attachment

Country Status (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101357446B (en) * 2007-08-01 2010-08-04 天润曲轴股份有限公司 Crankshaft milling crutch indexing fixture
CN106239261A (en) * 2015-01-28 2016-12-21 潘茜茜 Indexing fixture
CN109807748A (en) * 2019-03-19 2019-05-28 黄石华旦机械制造有限公司 Crankshaft milling crutch indexing fixture and its application method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101357446B (en) * 2007-08-01 2010-08-04 天润曲轴股份有限公司 Crankshaft milling crutch indexing fixture
CN106239261A (en) * 2015-01-28 2016-12-21 潘茜茜 Indexing fixture
CN106425606A (en) * 2015-01-28 2017-02-22 潘茜茜 Indexing fixture
CN106425604A (en) * 2015-01-28 2017-02-22 潘茜茜 Indexing fixture
CN109807748A (en) * 2019-03-19 2019-05-28 黄石华旦机械制造有限公司 Crankshaft milling crutch indexing fixture and its application method
CN109807748B (en) * 2019-03-19 2020-04-14 黄石华旦机械制造有限公司 Crankshaft grinding and turning indexing clamp and using method thereof

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080528

Termination date: 20090901