CN203599655U - Round hole gear blank finish turning clamp - Google Patents
Round hole gear blank finish turning clamp Download PDFInfo
- Publication number
- CN203599655U CN203599655U CN201320784135.2U CN201320784135U CN203599655U CN 203599655 U CN203599655 U CN 203599655U CN 201320784135 U CN201320784135 U CN 201320784135U CN 203599655 U CN203599655 U CN 203599655U
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- China
- Prior art keywords
- cylindrical spring
- spring mandrel
- gear blank
- spherical
- gasket
- 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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- 238000007514 turning Methods 0.000 title abstract description 8
- 238000010276 construction Methods 0.000 claims description 4
- 230000000149 penetrating Effects 0.000 abstract 1
- 238000003754 machining Methods 0.000 description 9
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- 235000012970 cakes Nutrition 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 235000019713 millet Nutrition 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 210000003165 Abomasum Anatomy 0.000 description 2
- 230000037250 Clearance Effects 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 2
- 230000035512 clearance Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound 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[Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
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- 229920001778 nylon Polymers 0.000 description 1
Abstract
A round hole gear blank finish turning clamp structurally comprises a power source, a pull rod, a cylindrical spring mandrel, a gasket, a rubber washer, a spherical gasket and a nut. One end of the pull rod is connected with the power source arranged on the left side of a machine tool spindle, and the other end of the pull rod is sleeved with the spherical gasket and fixed by the nut after penetrating through a spindle box spindle, a chuck body and the cylindrical spring mandrel. A base of the cylindrical spring mandrel is connected with the chuck body of a machine tool through a bolt and is corrected, the diameter of the outer circle of the cylindrical spring mandrel is slightly smaller than that of a round hole of a gear blank, a hollow structure is adopted by the cylindrical spring mandrel, the cylindrical spring mandrel is split from the root and evenly divided into four pieces, and a 120-degree chamfer is arranged on the end face of an opening of the cylindrical spring mandrel. The cylindrical spring mandrel is sleeved with the gasket, and the left end of the gasket is in close fit with the bottom end face of the cylindrical spring mandrel. The rubber wafer is embedded into an annular groove in the right end of the gasket. A spherical surface structure is adopted by the spherical gasket, the point contact face between the spherical gasket and the end face of the opening chamfer of the cylindrical spring mandrel is small, a closed ring can be formed in the clamping work process, and centring precision is high.
Description
Technical field
The present invention relates to gear blank clamp for machining, specifically manufacturing and designing of a kind of circular hole gear blank finish turning special fixture.
Background technology
In Gear Processing production process, if lathe, cutter, operation layout, fixture are constant, the machining accuracy of gear is mainly subject to restriction and the impact of the machining accuracy of gear blank, and gear blank machining accuracy is directly connected to the final precision of gear product.Because circular hole gear blank finish turning is the necessary link in high class gear product manufacturing procedure, and the technological deficiency that the gear blank lathe finish fixture using exists, cause product working (machining) efficiency low, low precision, affects assembling, running and the service life of circular hole gear product.The circular hole gear blank finish turning of gear enterprise processing at present generally adopts elastic central spindle and tapering dabber clamp, and the former clamping gear blank is convenient, and efficiency is high, but low precision, and end face and cylindrical are beated greatly.The latter's clamping inconvenience, working (machining) efficiency is low, and gear blank clamping all needs to take off tapering mandrel, knocks gear blank or tapering mandrel make the two separately or be locked with copper rod or nylon hammer, and labour intensity is large; Simultaneously tapering mandrel frequently easily causes well damage to need to change owing to knocking, though that the gear blank end face after processing and cylindrical are beated is little, but processing cost is high.
Summary of the invention
The present invention is directed to the technological deficiency that existing circular hole gear blank lathe finish fixture exists, easy to operate efficient, the gear blank end face of processing of a kind of clamping and the finish turning special fixture that cylindrical is beated little, precision is high are provided.
The present invention is achieved through the following technical solutions:
A kind of circular hole gear blank lathe finish fixture, its structure comprises power source, pull bar, cylindrical spring mandrel, pad, rubber washer, spherical washer, nut.Described pull bar one end is connected with the power source that is arranged on lathe headstock left side, and the other end passes after headstock spindle and chuck body and described cylindrical spring mandrel, is inserted in the described nut of described spherical washer and fixes; The pedestal of described cylindrical spring mandrel is connected with adaptor socket body for machine tool and proofreaies and correct with bolt, and its outside diameter is slightly less than gear blank Circularhole diameter, cylindrical spring mandrel employing hollow-core construction, it is cut open and is divided into 4, openend and has 120 degree chamferings from root; Described pad is enclosed within on described cylindrical spring mandrel, pad left end and cylindrical spring mandrel bottom face tight fit; The right-hand member cannelure of pad is embedded in described rubber washer; Described spherical washer employing spherical structure and described cylindrical spring mandrel opening chamfered end millet cake contact-making surface are little, can form closed annular centering precision high while clamping work.
When work, by gear blank circle hole sleeve on described cylindrical spring mandrel, start described power source, complete horizontal direction and clamp movement left, drive described pull bar horizontal left simultaneously, described nut on it moves and impels described spherical washer to press described cylindrical spring end face of mandrel 120 to spend chamfering, the radial deformation that causes diameter to swell, thereby when gear blank being close to be enclosed within the described pad right side on described cylindrical spring mandrel, eliminate the radial clearance of its endoporus and cylindrical spring mandrel and clamp gear blank, starting the finish turning processing of gear blank.Special fixture of the present invention can accurately clamp securely gear blank and rotate together with main shaft, special fixture can be eliminated the gap between gear blank endoporus and described cylindrical spring mandrel, gear blank inner face and described pad are close to, special fixture and gear blank assembly good rigidly, positioning stablity is reliable.Described spherical washer employing spherical structure and described cylindrical spring mandrel opening chamfered end millet cake contact-making surface are little, and when spherical washer clamps described cylindrical spring mandrel, each reed distortion is tending towards a stationary value, can form closed annular gear blank centering precision high.After gear blank completion of processing, power source completes horizontal direction and unclamps movement to the right, drive described pull bar while level to move to right, described nut on it is no longer exerted pressure to described spherical washer, the strain of described cylindrical spring mandrel is eliminated, between gear blank endoporus and cylindrical spring mandrel, recover gap, thereby can take off easily the gear blank processing, be loaded on gear blank to be processed.
Beneficial effect of the present invention is:
The technology of the present invention has: 1.Working (machining) efficiency is high: gear blank clamping takes off convenient to operation, and labor intensity of operating staff is low.2。Machining accuracy is high: the gear blank end face of processing and cylindrical are beated little, constant product quality.3。Processing cost is low: after working (machining) efficiency and product qualified rate significantly improve, can reduce cost of goods manufactured.
Accompanying drawing explanation:
Fig. 1 is a kind of assembly structure schematic diagram of circular hole gear blank lathe finish fixture.
Fig. 2 is a kind of cylindrical spring core shaft structure schematic diagram of circular hole gear blank lathe finish fixture.
Fig. 3 is a kind of Tiebar structure schematic diagram of circular hole gear blank lathe finish fixture.
Fig. 4 is a kind of gasket construction schematic diagram of circular hole gear blank lathe finish fixture.
Fig. 5 is a kind of rubber washer structural representation of circular hole gear blank lathe finish fixture.
Fig. 6 is a kind of spherical washer structural representation of circular hole gear blank lathe finish fixture.
In figure: 1, power source; 2, pull bar; 3, main shaft; 4, chuck body; 5, pad; 6, rubber washer; 7, cylindrical spring mandrel; 8, gear blank; 9, spherical washer; 10, nut.
The specific embodiment:
A kind of circular hole gear blank lathe finish fixture, its structure comprises power source, pull bar, cylindrical spring mandrel, pad, rubber washer, spherical washer, nut.Described pull bar 2 one end are connected with the power source 1 that is arranged on lathe headstock left side, and the other end passes after headstock spindle 3 and chuck body 4 and described cylindrical spring mandrel 7, are inserted in the described nut 10 of described spherical washer 9 use fixing; The pedestal of described cylindrical spring mandrel is connected with adaptor socket body for machine tool and proofreaies and correct with bolt, and cylindrical spring mandrel employing hollow-core construction, outside diameter are slightly less than gear blank Circularhole diameter, it is cut open and be divided into 4, openend and have 120 degree chamferings from root; Described pad 5 is enclosed within on described cylindrical spring mandrel, pad left end and cylindrical spring mandrel bottom face tight fit; The right-hand member cannelure of pad is embedded in described rubber washer 6; Described spherical washer employing spherical structure and described cylindrical spring mandrel opening chamfered end millet cake contact-making surface are little, can form closed annular centering precision high while clamping work.
When work, by gear blank 8 circle hole sleeves on described cylindrical spring mandrel, start described power source, complete horizontal direction and clamp movement left, drive described pull bar horizontal left simultaneously, described nut on it moves and impels described spherical washer to press described cylindrical spring end face of mandrel 120 to spend chamfering, the radial deformation that causes diameter to swell, thereby when gear blank being close to be enclosed within the described pad right side on described cylindrical spring mandrel, eliminate the radial clearance of its endoporus and cylindrical spring mandrel and clamp gear blank, starting the finish turning processing of gear blank.Special fixture of the present invention can accurately clamp securely gear blank and rotate together with main shaft, special fixture can be eliminated the gap between gear blank endoporus and described cylindrical spring mandrel, gear blank inner face and described pad are close to, special fixture and gear blank assembly good rigidly, positioning stablity is reliable.Described spherical washer employing spherical structure and described cylindrical spring mandrel opening chamfered end millet cake contact-making surface are little, and when spherical washer clamps described cylindrical spring mandrel, each reed distortion is tending towards a stationary value, can form closed ring centering precision high.After gear blank completion of processing, power source completes horizontal direction and unclamps movement to the right, drive described pull bar while level to move to right, described nut on it is no longer exerted pressure to described spherical washer, the strain of described cylindrical spring mandrel is eliminated, between gear blank endoporus and cylindrical spring mandrel, recover gap, thereby can take off easily the gear blank processing, be loaded on gear blank to be processed.
The above embodiment; the one of the embodiment that just the technology of the present invention is more preferably concrete; common variation and replacement that those skilled in the art carries out within the scope of technical solution of the present invention, comprise the selection of power mode and adopt spline central spindle of the spring all should be included in the protection domain of the technology of the present invention.
Claims (4)
1. a circular hole gear blank lathe finish fixture, its structure comprises power source, pull bar, cylindrical spring mandrel, pad, rubber washer, spherical washer, nut; It is characterized in that: described pull bar one end is connected with the power source that is arranged on lathe headstock left side, and the other end passes after headstock spindle and chuck body and described cylindrical spring mandrel, is inserted in the described nut of described spherical washer and fixes.
2. a kind of circular hole gear blank lathe finish fixture according to claim 1, it is characterized in that: the pedestal of described cylindrical spring mandrel bolt is connected with adaptor socket body for machine tool and proofreaies and correct, outside diameter is slightly less than gear blank Circularhole diameter, cylindrical spring mandrel adopts hollow-core construction, and it is cut open and be divided into 4, openend and have 120 degree chamferings from root.
3. a kind of circular hole gear blank lathe finish fixture according to claim 1, is characterized in that: described pad is enclosed within on described cylindrical spring mandrel pad left end and cylindrical spring mandrel bottom face tight fit; The right-hand member cannelure of pad is embedded in described rubber washer.
4. a kind of circular hole gear blank lathe finish fixture according to claim 1, is characterized in that: described spherical washer adopts spherical structure little with the some contact-making surface of described cylindrical spring mandrel opening chamfering end face, can form closed annular centering precision high when clamping work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320784135.2U CN203599655U (en) | 2013-12-04 | 2013-12-04 | Round hole gear blank finish turning clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320784135.2U CN203599655U (en) | 2013-12-04 | 2013-12-04 | Round hole gear blank finish turning clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203599655U true CN203599655U (en) | 2014-05-21 |
Family
ID=50712356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320784135.2U Expired - Fee Related CN203599655U (en) | 2013-12-04 | 2013-12-04 | Round hole gear blank finish turning clamp |
Country Status (1)
| Country | Link |
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| CN (1) | CN203599655U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104708121A (en) * | 2013-12-13 | 2015-06-17 | 淮安市万隆机械科技有限公司 | Round-hole gear blank finish turning clamp |
-
2013
- 2013-12-04 CN CN201320784135.2U patent/CN203599655U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104708121A (en) * | 2013-12-13 | 2015-06-17 | 淮安市万隆机械科技有限公司 | Round-hole gear blank finish turning clamp |
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| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140521 Termination date: 20171204 |