CN203696474U - Combined and adjustable clamp for fine boring of eccentric hole of crankshaft - Google Patents
Combined and adjustable clamp for fine boring of eccentric hole of crankshaft Download PDFInfo
- Publication number
- CN203696474U CN203696474U CN201420020571.7U CN201420020571U CN203696474U CN 203696474 U CN203696474 U CN 203696474U CN 201420020571 U CN201420020571 U CN 201420020571U CN 203696474 U CN203696474 U CN 203696474U
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- China
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- clamping plate
- boring
- crankshaft
- ejection point
- vuilt
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Abstract
The utility model belongs to the field of crankshaft machining equipment, and particularly relates to a combined and adjustable clamp for fine boring of an eccentric hole of a crankshaft. The combined and adjustable clamp for fine boring of an eccentric hole of a crankshaft is fixedly mounted on a boring mill and comprises a rear ejection point mounted on the boring mill through a rear ejection point seat and a front ejection point mounted on the boring mill through a front ejection point seat, the front ejection point and the rear ejection point are located on the same central axis, and the rear ejection point can move left and right along the central axis; the clamp further comprises a sliding shaft which is mounted on the boring mill through a sliding shaft seat, and the sliding shaft is located between the front ejection point and the rear ejection point and is close to the front ejection point; the clamp further comprises a left clamping plate and a right clamping plate mounted on the boring mill, and the left clamping plate and the right clamping plate are located on the two sides of the sliding shaft respectively. The combined and adjustable clamp has the advantages of being high in efficiency, high in machined piece precision and stable in quality.
Description
Technical field
The utility model belongs to crankshaft production machine apparatus field, is specifically related to a kind of vuilt-up crankshaft right boring eccentric orfice flexible jig.
Background technology
To be exactly cylindrical and the cylindrical of part or cylindrical parallel with the axis of endoporus and do not coincide for eccentric element, the part of deviation certain distance.Eccentric element is applied very extensive in plant equipment, and in machine driving, gyration becomes linear reciprocating motion or linear reciprocating motion becomes gyration, generally all utilizes eccentric element to complete.As the lubricating pump that eccentric work piece for headstock case drives, the bent axle in automobile engine, the bent axle of lumbering equipment etc., but the processing technology of eccentric element relatively check, subject matter is the more difficult eccentric throw of getting hold of, precision is high, difficulty reaches corresponding tolerance.
Eccentric crankshaft is all generally to process on lathe, and their process principle is basic identical; Be mainly to take measures aspect clamping, the axis centering of the eccentric part of needs being processed is to coinciding with lathe spindle rotation.In conventional art, the machining accuracy of bent axle is not high enough, does not adapt to high-accuracy mechanical equipment, moreover working (machining) efficiency is low.
In view of this, the applicant provides a kind of vuilt-up crankshaft right boring eccentric orfice flexible jig, and this case produces thus.
Utility model content
The purpose of this utility model is to provide a kind of vuilt-up crankshaft right boring eccentric orfice flexible jig, and to solve in conventional art, the precision of the processing of bent axle is not high enough, does not adapt to high-accuracy mechanical equipment.
For above-mentioned technical problem, the concrete technical scheme of the utility model is as follows: a kind of vuilt-up crankshaft right boring eccentric orfice flexible jig, this vuilt-up crankshaft right boring eccentric orfice flexible jig is fixedly installed on boring machine, comprise by tail block and be installed on back centre on boring machine and be installed on front top on boring machine by front dead head, described front top and back centre is positioned on same central shaft, and back centre can be along central shaft left and right displacement; Also comprise sliding axle, this sliding axle is installed on boring machine by sliding shaft base, and described sliding axle is between front top and back centre and near front top; Also comprise the left clamping plate and the right clamping plate that are installed on boring machine, these left clamping plate and right clamping plate are positioned at sliding axle both sides.
Further, described left clamping plate and right clamping plate are fixedly installed on boring machine by left and right clamping plate seat, and clamping plate are movably connected on clamping plate seat by swinging shaft, and described left clamping plate and right clamping plate are in transmission connection by pull bar.
Further, described left and right clamping plate inner side is respectively provided with friction pad, and the friction pad on left and right clamping plate is symmetrical set.
Further, described pull bar is by air cylinder driven, and one end of pull bar is connected in cylinder by air cylinder tie rod joint.
The beneficial effects of the utility model: described front top and back centre is positioned on same central shaft, can accurately fix workpiece, guarantees the machining accuracy of workpiece; Described left clamping plate and right clamping plate are in transmission connection by pull bar, and left clamping plate and right clamping plate are connected, and can make left clamping plate and right clamping plate synchronous clamping, prevent that the asymmetric clamping of left clamping plate and right clamping plate from causing that workpiece machining accuracy reduces; Described left and right clamping plate inner side is respectively provided with friction pad, can improve the frictional force of left and right clamping plate, prevents that workpiece from sliding, and causes adding the machining accuracy of labor cost; Sliding axle is the position in location eccentricity hole accurately.
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the utility model structural front view; Fig. 2 is the utility model structure left view.
The specific embodiment
As shown in Figure 1, 2, what the utility model disclosed is a kind of vuilt-up crankshaft right boring eccentric orfice flexible jig, this vuilt-up crankshaft right boring eccentric orfice flexible jig is fixedly installed on boring machine 1, comprise by tail block 2 and be installed on the back centre 3 on boring machine 1 and be installed on front top 5 on boring machine 1 by front dead head 4, described front top 5 and back centre 3 be positioned on same central shaft, back centre 3 can be along central shaft left and right displacement; Also comprise sliding axle 6, this sliding axle 6 is installed on boring machine 1 by sliding shaft base 7, described sliding axle 6 front top 5 and back centre 3 between and near front top 5; Also comprise the left clamping plate 81 and the right clamping plate 82 that are installed on boring machine 1, these left clamping plate 81 and right clamping plate 82 are positioned at sliding axle 6 both sides.
Further, described left clamping plate 81 and right clamping plate 82 are fixedly installed on boring machine 1 by left and right clamping plate seat (91,92), and clamping plate 8 are movably connected on clamping plate seat 9 by swinging shaft 10, and described left clamping plate 81 and right clamping plate 82 are in transmission connection by pull bar 11; Described left and right clamping plate (81,82) inner side is respectively provided with friction pad 12, and the friction pad 12 on left and right clamping plate (81,82) is symmetrical set; Described pull bar 11 drives by cylinder 13, and one end of pull bar 11 is connected in cylinder by air cylinder tie rod joint 14.
Shown in Fig. 1,2, operation principle of the present utility model: the eccentric nose end of workpiece 15 is peaked to front top 5, then mobile back centre 3 withstands the other end of workpiece 15, next mobile sliding axle 6 is to the eccentric orfice of workpiece 15, restriction workpiece 15 rotates and eccentric orfice is aimed to boring cutter, last pull bar 11 drives the sliding axle 6 left clamping plate 81 in both sides and right clamping plate 82 to clamp workpiece 15, by horizontal and vertical workpiece 15 fixing dead, sliding axle 6 leaves eccentric orfice, and boring cutter can be processed workpiece 15.
Shown in Fig. 1, the utility model is with workpiece 15 two centre bore centering, take sliding axle 6 positioning floatings to clamp, can guarantee workpiece 15 main shafts and eccentric throw ± 0.01 of eccentric ratio axis hole and the requirement of 100: 0.01 of the depth of parallelism of main shaft, be contained on two main axle machine tools and within the 5-8 time of second, once can process two workpieces 15, there is efficiency high, the function that quality is steady.Than the lathe of transmission, the efficiency of inner circle mill fine grinding endoporus improves output 4-5 accompanies, and dimensional stability reaches 99.8%.Production cost and artificial quantity are significantly reduced.
Above-described embodiment and graphic and non-limiting product form of the present utility model and style, suitable variation or modification that any person of an ordinary skill in the technical field does it, all should be considered as not departing from patent category of the present utility model.
Claims (4)
1. a vuilt-up crankshaft right boring eccentric orfice flexible jig, this vuilt-up crankshaft right boring eccentric orfice flexible jig is fixedly installed on boring machine, it is characterized in that: comprise by tail block and be installed on back centre on boring machine and be installed on front top on boring machine by front dead head, described front top and back centre is positioned on same central shaft, and back centre can be along central shaft left and right displacement; Also comprise sliding axle, this sliding axle is installed on boring machine by sliding shaft base, and described sliding axle is between front top and back centre and near front top; Also comprise the left clamping plate and the right clamping plate that are installed on boring machine, these left clamping plate and right clamping plate are positioned at sliding axle both sides.
2. a kind of vuilt-up crankshaft right boring eccentric orfice flexible jig according to claim 1, it is characterized in that: described left clamping plate and right clamping plate are fixedly installed on boring machine by left and right clamping plate seat, clamping plate are movably connected on clamping plate seat by swinging shaft, and described left clamping plate and right clamping plate are in transmission connection by pull bar.
3. a kind of vuilt-up crankshaft right boring eccentric orfice flexible jig according to claim 2, is characterized in that: described left and right clamping plate inner side is respectively provided with friction pad, and the friction pad on left and right clamping plate is symmetrical set.
4. a kind of vuilt-up crankshaft right boring eccentric orfice flexible jig according to claim 2, is characterized in that: described pull bar is by air cylinder driven, and one end of pull bar is connected in cylinder by air cylinder tie rod joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420020571.7U CN203696474U (en) | 2014-01-14 | 2014-01-14 | Combined and adjustable clamp for fine boring of eccentric hole of crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420020571.7U CN203696474U (en) | 2014-01-14 | 2014-01-14 | Combined and adjustable clamp for fine boring of eccentric hole of crankshaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203696474U true CN203696474U (en) | 2014-07-09 |
Family
ID=51046973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420020571.7U Expired - Fee Related CN203696474U (en) | 2014-01-14 | 2014-01-14 | Combined and adjustable clamp for fine boring of eccentric hole of crankshaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203696474U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103753277A (en) * | 2014-01-14 | 2014-04-30 | 浙江汇豪机械制造有限公司 | Built-up crankshaft fine boring eccentric hole adjustable clamp |
-
2014
- 2014-01-14 CN CN201420020571.7U patent/CN203696474U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103753277A (en) * | 2014-01-14 | 2014-04-30 | 浙江汇豪机械制造有限公司 | Built-up crankshaft fine boring eccentric hole adjustable clamp |
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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: 20140709 Termination date: 20150114 |
|
| EXPY | Termination of patent right or utility model |