CN105033717A - Axial locking device applied to processing course of engine crankshaft - Google Patents

Axial locking device applied to processing course of engine crankshaft Download PDF

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Publication number
CN105033717A
CN105033717A CN201510544570.1A CN201510544570A CN105033717A CN 105033717 A CN105033717 A CN 105033717A CN 201510544570 A CN201510544570 A CN 201510544570A CN 105033717 A CN105033717 A CN 105033717A
Authority
CN
China
Prior art keywords
locking assembly
locking
axial
crankshaft
precision
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
CN201510544570.1A
Other languages
Chinese (zh)
Inventor
张强
谢金龙
郭兵
周毅涛
蔡世强
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.)
PUSH AUTO PARTS CO Ltd
Original Assignee
PUSH AUTO PARTS 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 PUSH AUTO PARTS CO Ltd filed Critical PUSH AUTO PARTS CO Ltd
Priority to CN201510544570.1A priority Critical patent/CN105033717A/en
Publication of CN105033717A publication Critical patent/CN105033717A/en
Pending legal-status Critical Current

Links

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
    • 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
    • B23Q3/08Work-clamping means other than mechanically-actuated
    • B23Q3/082Work-clamping means other than mechanically-actuated hydraulically actuated
    • 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
    • B23Q2703/00Work clamping
    • B23Q2703/02Work clamping means
    • B23Q2703/04Work clamping means using fluid means or a vacuum
    • 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
    • B23Q2703/00Work clamping
    • B23Q2703/02Work clamping means
    • B23Q2703/10Devices for clamping workpieces of a particular form or made from a particular material
    • B23Q2703/105Devices for clamping workpieces of a particular form or made from a particular material for clamping a crankshaft

Abstract

The invention relates to an axial locking device applied to the processing course of an engine crankshaft. The axial locking device comprises a base and a support frame. The axial locking device is characterized in that a middle locking assembly and a tail locking assembly are mounted on the base, wherein the middle locking assembly comprises a bracket, and a bearing I is mounted at the upper part of the bracket; the tail locking assembly comprises a tail stock, an elastic component is connected to the upper end of the tail stock, and a bearing II is mounted at the front end of the elastic component. The axial locking device disclosed by the invention has the benefits that through the interaction of the middle locking assembly and the tail locking assembly, the axial shift of a workpiece generated in the process of rotation can be effectively avoided, the dynamic balance precision of the crankshaft is promoted to reach the precision required by engine manufacturers, and the coincidence of the processing precision of a fully automatic balancing machine and the processing precision of a manual balancing machine is ensured to be as high as 94%.

Description

Be applied to the axial locking device in engine crankshaft process
Technical field
The present invention relates to a kind of axial locking device, be specially adapted to the axial locking location of automobile engine crankshaft process.
Background technology
In automobile engine crankshaft 36 road manufacturing procedure, crankshaft dynamic balance processing is listed in crucial manufacturing procedure, and dynamic balancing machining accuracy is poor, vehicle can be caused to vibrate excessive under steam and cause cruising characteristic poor, even can cause crankshaft breakdown, bring security incident.Crankshaft dynamic balance machining tool is divided into full automatic balance lathe and manually balances lathe, and manufacturer is according to the production efficiency of oneself and the dissimilar lathe of converted products accuracy selection.The Main Means of machine tooling is holed as required, to reach the requirement of counterweight on bent axle fan plate.
The precision of usual crankshaft dynamic balance processing can be formulated according to the requirement of automobile engine producer.If a model is the bent axle of 4JB1, engine producer requires that dynamic balance accuracy is 15g.cm.Within Production of Crankshaft producer not only needs that precision is worked into 15g.cm, and duplicate measurements error can not more than 3g.cm, and need to reach more than 90% in the certainty of measurement repeatability of full-automatic balancing machine and manual balancing machine.
But, in Crankshaft Machining process, no matter be full automatic balance lathe and manually balance lathe, owing to lacking the means that are effectively locked, make the bent axle of lighter weight in High Rotation Speed process, easily occur the phenomenon (probability is about 20%) of axial float, it is large that play just directly results in dynamic balancing value, thus make machining accuracy and repeatability not reach requirement, percent defective is high, and production cost increases.
Summary of the invention
The object of this invention is to provide and a kind ofly can be applied to axial locking device in engine crankshaft process to make up the deficiencies in the prior art, this device can prevent the axial float phenomenon of processed bent axle effectively.
The present invention be achieve the goal adopt technical scheme be: be applied to the axial locking device in engine crankshaft process, comprise pedestal and bracing frame, it is characterized in that:
Pedestal is provided with middle locking assembly and afterbody locking assembly;
In the middle of described, locking assembly comprises support, is provided with bearing I at frame upper;
Described afterbody locking assembly comprises tailstock, and be connected with telescopic component in tailstock upper end, telescopic component front end is provided with bearing II.
Optimize: telescopic component comprises hydraulic cylinder or pneumatic cylinder.
beneficial effect of the present invention is: the present invention locks the interaction of assembly by middle locking assembly and afterbody, the axial float that can effectively prevent workpiece from producing in rotary course, impel crankshaft dynamic balance precision to reach engine producer permissible accuracy, ensure that the machining accuracy of full-automatic balancing machine and manually balance mach precision repeatability up to more than 94%.In addition, fixing contact position design is not had the position of required precision by the present invention cleverly at bent axle, can not affect the quality of machined surface; And fixed position binding face is servo-actuated by bearing, very little force of rolling friction also can not affect the movement locus of bent axle in rotary course.Above measure improves the total quality of bent axle, reduces the percent defective of workpiece.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the structural representation of telescopic component.
Fig. 3 is the side view of middle locking assembly.
Detailed description of the invention
Embodiment 1:
As shown in Figure 1,1 is pedestal, and 2 is bracing frames, and 3 is supports, and 4 is bearings I, and 5 is tailstocks, and 6 is telescopic components, and 7 is bearings II, and 8 is cylinder (hydraulic pressure or air pressure), and 9 is bent axles, and 10 is fan plates, and 11 is push rods, and 12 is axle journals.
The processing mode of existing equipment: be positioned on bracing frame by the two ends of bent axle 9, starts lathe button, and claw clamping bent axle 9, band dynamic crankshaft 9 rotates, and has top withstanding, to prevent play in the centre bore of bent axle 9 right-hand member.Lathe auto-induction apparatus calculates uneven value automatically, and external cutter carries out Drilling operation to fan plate 10 again, reaches the object to fan plate 10 duplicate removal, to ensure that crankshaft imbalance value is in prescribed limit.
In above-mentioned process, because top solid is limited in one's ability, easily there is the phenomenon of play in bent axle 9.
In the middle of the present invention's design, the support 3 of locking assembly and the tailstock 5 of afterbody locking assembly are mounted on pedestal 1.
Press starting button, telescopic component 6 works, and cylinder 8 makes push rod 11 outwards move, until bearing II 7 contacts with the right end of bent axle 9, and is adjacent to its left end face.
Meanwhile, middle locking assembly upper bearing (metal) I 4 and axle journal 12 right side opening shelves end contact, complete the axial locking of workpiece.
Restart lathe button, carry out the processing of workpiece, by effective control of two contact points, and then reach the axial float effectively preventing workpiece from producing in rotary course, stopped product in crankshaft dynamic balance processing and the phenomenon flown out of skidding occurs.Impel crankshaft dynamic balance precision can reach engine producer permissible accuracy, ensure that the machining accuracy of full-automatic balancing machine and manually balance mach precision repeatability up to 94% the above object.
Bent axle 9 is in rotary course, and bearing I 4 and bearing II 7 are servo-actuated state.And the axes normal of bearing axis and bent axle 9, also ensure that the uniform force of bearing.

Claims (2)

1. be applied to the axial locking device in engine crankshaft process, comprise pedestal and bracing frame, it is characterized in that:
Pedestal is provided with middle locking assembly and afterbody locking assembly;
In the middle of described, locking assembly comprises support, is provided with bearing I at frame upper;
Described afterbody locking assembly comprises tailstock, and be connected with telescopic component in tailstock upper end, telescopic component front end is provided with bearing II.
2. the axial locking device be applied in engine crankshaft process according to claim 1, is characterized in that: telescopic component comprises hydraulic cylinder or pneumatic cylinder.
CN201510544570.1A 2015-08-31 2015-08-31 Axial locking device applied to processing course of engine crankshaft Pending CN105033717A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510544570.1A CN105033717A (en) 2015-08-31 2015-08-31 Axial locking device applied to processing course of engine crankshaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510544570.1A CN105033717A (en) 2015-08-31 2015-08-31 Axial locking device applied to processing course of engine crankshaft

Publications (1)

Publication Number Publication Date
CN105033717A true CN105033717A (en) 2015-11-11

Family

ID=54440992

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510544570.1A Pending CN105033717A (en) 2015-08-31 2015-08-31 Axial locking device applied to processing course of engine crankshaft

Country Status (1)

Country Link
CN (1) CN105033717A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110722371A (en) * 2019-10-12 2020-01-24 江苏科技大学 Numerical control machining positioning mounting fixture for marine propeller
CN110977331A (en) * 2018-10-03 2020-04-10 通用汽车环球科技运作有限责任公司 Method for manufacturing crankshaft

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0911170A (en) * 1995-06-28 1997-01-14 Mitsubishi Electric Corp Phase adjusting device for crankshaft
CN201008886Y (en) * 2006-12-26 2008-01-23 郑红专 Axial direction positioning device of working roller
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
CN101758398A (en) * 2008-10-31 2010-06-30 江苏罡阳股份有限公司 Bidirectional positioning fixture for crankshaft milling groove
CN101758396A (en) * 2008-11-28 2010-06-30 天润曲轴股份有限公司 Crankshaft flange eccentric hole clamp for drill
CN103949922A (en) * 2014-05-21 2014-07-30 成都西菱动力科技股份有限公司 Quick positioning and locking clamp for processing camshaft
CN204913399U (en) * 2015-08-31 2015-12-30 四川省宜宾普什汽车零部件有限公司 Be applied to axial locking device in engine crankshaft course of working

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0911170A (en) * 1995-06-28 1997-01-14 Mitsubishi Electric Corp Phase adjusting device for crankshaft
CN201008886Y (en) * 2006-12-26 2008-01-23 郑红专 Axial direction positioning device of working roller
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
CN101758398A (en) * 2008-10-31 2010-06-30 江苏罡阳股份有限公司 Bidirectional positioning fixture for crankshaft milling groove
CN101758396A (en) * 2008-11-28 2010-06-30 天润曲轴股份有限公司 Crankshaft flange eccentric hole clamp for drill
CN103949922A (en) * 2014-05-21 2014-07-30 成都西菱动力科技股份有限公司 Quick positioning and locking clamp for processing camshaft
CN204913399U (en) * 2015-08-31 2015-12-30 四川省宜宾普什汽车零部件有限公司 Be applied to axial locking device in engine crankshaft course of working

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110977331A (en) * 2018-10-03 2020-04-10 通用汽车环球科技运作有限责任公司 Method for manufacturing crankshaft
CN110722371A (en) * 2019-10-12 2020-01-24 江苏科技大学 Numerical control machining positioning mounting fixture for marine propeller

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Application publication date: 20151111