CN204913399U - Be applied to axial locking device in engine crankshaft course of working - Google Patents
Be applied to axial locking device in engine crankshaft course of working Download PDFInfo
- Publication number
- CN204913399U CN204913399U CN201520665540.1U CN201520665540U CN204913399U CN 204913399 U CN204913399 U CN 204913399U CN 201520665540 U CN201520665540 U CN 201520665540U CN 204913399 U CN204913399 U CN 204913399U
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- locking assembly
- precision
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Abstract
The utility model relates to a be applied to axial locking device in engine crankshaft course of working, including base and support frame, characterized by: locking assembly and afterbody locking assembly in the middle of installing on the base, middle locking assembly includes the support, installs bearing I on support upper portion, afterbody locking assembly includes the tailstock, is connected with flexible subassembly in the tailstock upper end, and bearing II is installed to flexible subassembly front end. The utility model has the advantages of the utility model discloses an interact of middle locking assembly and afterbody locking assembly can effectually prevent that the work piece from at the axial float that rotatory in -process produced, impelling bent axle dynamic balance precision to reach the precision that engine producer required, has guaranteed that full automatic balancing machine's machining precision and precision coincidence that hand dynamic balancing machine processed are up to more than 94%.
Description
Technical field
The utility model relates to a kind of axial locking device, is 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.
Utility model content
The purpose of this utility model 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, and this device can prevent the axial float phenomenon of processed bent axle effectively.
The utility model 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.
the beneficial effects of the utility model are: the utility model 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 utility model 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 utility model embodiment.
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 utility model 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520665540.1U CN204913399U (en) | 2015-08-31 | 2015-08-31 | Be applied to axial locking device in engine crankshaft course of working |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520665540.1U CN204913399U (en) | 2015-08-31 | 2015-08-31 | Be applied to axial locking device in engine crankshaft course of working |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204913399U true CN204913399U (en) | 2015-12-30 |
Family
ID=54962579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520665540.1U Expired - Fee Related CN204913399U (en) | 2015-08-31 | 2015-08-31 | Be applied to axial locking device in engine crankshaft course of working |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204913399U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105033717A (en) * | 2015-08-31 | 2015-11-11 | 四川省宜宾普什汽车零部件有限公司 | Axial locking device applied to processing course of engine crankshaft |
-
2015
- 2015-08-31 CN CN201520665540.1U patent/CN204913399U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105033717A (en) * | 2015-08-31 | 2015-11-11 | 四川省宜宾普什汽车零部件有限公司 | Axial locking device applied to processing course of engine crankshaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20210831 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |