CN203696473U - Combined pneumatic clamp for milling key groove of crankshaft - Google Patents
Combined pneumatic clamp for milling key groove of crankshaft Download PDFInfo
- Publication number
- CN203696473U CN203696473U CN201420020402.3U CN201420020402U CN203696473U CN 203696473 U CN203696473 U CN 203696473U CN 201420020402 U CN201420020402 U CN 201420020402U CN 203696473 U CN203696473 U CN 203696473U
- Authority
- CN
- China
- Prior art keywords
- ejection point
- crankshaft
- air
- locator
- actuated jaw
- 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
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- Jigs For Machine Tools (AREA)
Abstract
The utility model belongs to the field of crankshaft machining equipment, and particularly relates to a combined pneumatic clamp for milling a key groove of a crankshaft. The pneumatic clamp is mounted on a bottom plate and comprises a rear ejection point mounted on the bottom plate through a rear ejection point seat, a locator is arranged above the rear ejection point, and the locator is mounted on the rear ejection point seat in a sliding mode and is driven by a rear cylinder to move; the clamp further comprises a front ejection point mounted on the bottom plate through a front ejection point seat, and the front ejection point is mounted on the front ejection point seat in a sliding mode and is driven by a front cylinder to move; the front ejection point and the rear ejection point are oppositely arranged and located on the same central axis. The combined pneumatic 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 keyseat air-actuated jaw.
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 inventor provides a kind of vuilt-up crankshaft keyseat air-actuated jaw, and this case produces thus.
Utility model content
The purpose of this utility model is to provide a kind of vuilt-up crankshaft keyseat air-actuated jaw, 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 present invention is as follows: a kind of vuilt-up crankshaft keyseat air-actuated jaw, this air-actuated jaw is installed on a base plate, comprise by a tail block and be installed on the back centre on base plate, be positioned at back centre top and be provided with a locator, this locator is slidably mounted on tail block and by an exhaust hood drive displacement; Also comprise by a front dead head and be installed on front top on base plate, this front top being slidably mounted on front dead head and by front air cylinder drive displacement; Described front top and back centre is oppositely arranged and is positioned on same central shaft.
Further, described locator comprises the expansion pull bar being connected with exhaust hood and the expansion sleeve that is sheathed on expansion pull bar.
Further, described front be toply installed on front dead head by a linear bearing, front top can be along linear bearing horizontal displacement.
Further, described front air cylinder is fixed on front top end by a locking nut.
The beneficial effects of the utility model: described front top and back centre is positioned on same central shaft, can accurately fix workpiece, ensures the machining accuracy of workpiece; Be positioned at back centre top and be provided with a locator, this locator can be fixed the eccentric orfice of workpiece, makes workpiece location more accurate.
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Detailed description of the invention
As shown in Figure 1, what the utility model disclosed is a kind of vuilt-up crankshaft keyseat air-actuated jaw, this air-actuated jaw is installed on a base plate 1, comprise by a tail block 2 and be installed on the back centre 3 on base plate 1, be positioned at back centre 3 tops and be provided with a locator 4, this locator 4 is slidably mounted on tail block 2 and by exhaust hood 5 drive displacement; Also comprise by a front dead head 6 and be installed on front top 10 on base plate 1, this front top 10 is slidably mounted on front dead head 6 and by front air cylinder 7 drive displacement; Described front top 10 and back centre 3 be oppositely arranged and be positioned on same central shaft.
Further, described locator 4 comprises the expansion pull bar 41 being connected with exhaust hood 5 and the expansion sleeve 42 that is sheathed on expansion pull bar 41.Described front top 10 are installed on front dead head 6 by a linear bearing 8, and front top 10 can be along linear bearing 8 horizontal displacements; Described front air cylinder 7 is fixed on front top 10 ends by a locking nut 9.
Shown in Fig. 1, the utility model operation principle: workpiece 11 eccentric orfice 13 ends are fixed on back centre 3, exhaust hood 5 drives locator 4 to enter in eccentric orfice 13, before front air cylinder 7 drives, top 10 hold out against workpiece 11, last locator 4 shifts out eccentric orfice 13, and milling cutter 12 starts to process workpiece 11.
The utility model, taking bent axle semiaxis eccentric orfice as benchmark, is equipped with keyway angle locater on fixture tail block, has guaranteed angle and the clamping of keyway, can guarantee the requirement of 0.3 ° of the gradient of bent axle semiaxis main shaft and keyway.Be contained in the time of second of 4-6 on end mill and can complete one, there is efficiency high, the advantage such as quality is steady.Improve output 5-6 doubly than traditional gusset clamp jig, dimensional stability reaches 99.8%, has obviously reduced production cost.
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 keyseat air-actuated jaw, this air-actuated jaw is installed on a base plate, it is characterized in that: comprise by a tail block and be installed on the back centre on base plate, be positioned at back centre top and be provided with a locator, this locator is slidably mounted on tail block and by an exhaust hood drive displacement; Also comprise by a front dead head and be installed on front top on base plate, this front top being slidably mounted on front dead head and by front air cylinder drive displacement; Described front top and back centre is oppositely arranged and is positioned on same central shaft.
2. a kind of vuilt-up crankshaft keyseat air-actuated jaw according to claim 1, is characterized in that: described locator comprises the expansion pull bar being connected with exhaust hood and is sheathed on the expansion sleeve of expansion pull bar.
3. a kind of vuilt-up crankshaft keyseat air-actuated jaw according to claim 1, is characterized in that: described front be toply installed on front dead head by a linear bearing, front top can be along linear bearing horizontal displacement.
4. a kind of vuilt-up crankshaft keyseat air-actuated jaw according to claim 1, is characterized in that: described front air cylinder is fixed on front top end by a locking nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420020402.3U CN203696473U (en) | 2014-01-14 | 2014-01-14 | Combined pneumatic clamp for milling key groove of crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420020402.3U CN203696473U (en) | 2014-01-14 | 2014-01-14 | Combined pneumatic clamp for milling key groove of crankshaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203696473U true CN203696473U (en) | 2014-07-09 |
Family
ID=51046972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420020402.3U Expired - Fee Related CN203696473U (en) | 2014-01-14 | 2014-01-14 | Combined pneumatic clamp for milling key groove of crankshaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203696473U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104493595A (en) * | 2015-01-14 | 2015-04-08 | 青岛德盛机械制造有限公司 | Crank keyseat working fixture |
-
2014
- 2014-01-14 CN CN201420020402.3U patent/CN203696473U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104493595A (en) * | 2015-01-14 | 2015-04-08 | 青岛德盛机械制造有限公司 | Crank keyseat working fixture |
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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 |