CN201261130Y - Centre frame - Google Patents
Centre frame Download PDFInfo
- Publication number
- CN201261130Y CN201261130Y CNU2008201909806U CN200820190980U CN201261130Y CN 201261130 Y CN201261130 Y CN 201261130Y CN U2008201909806 U CNU2008201909806 U CN U2008201909806U CN 200820190980 U CN200820190980 U CN 200820190980U CN 201261130 Y CN201261130 Y CN 201261130Y
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- CN
- China
- Prior art keywords
- axle sleeve
- centre frame
- bearing
- machining
- fixed
- 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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Abstract
The utility model relates to a centre frame used for long-axis part machining, which belongs to the field of a tooling clamp of axis part machining and comprises a pedestal, a bearing seat, bearings, bearing covers, an axle sleeve, protective rings and a handle cap, wherein the bearing seat is fixed on the pedestal and internally fixed with one axle sleeve through two groups of bears, both sides of the bearing seat are provided with the bearing covers, and both ends of the axle sleeve are respectively fixed with one protective ring through three socket cap screws. Furthermore, the centre frame adopts the axle sleeve and the socket cap screws positioned on both ends of the axle sleeve to fix machining workpieces, and the axle sleeve and the workpieces are formed into an integer and simultaneously rolled and rotated through the bearings. In addition, the centre frame can rapidly machine any axis part, has no requirement on the rough degree and the shape of a workpiece surface, and also has high machining precision, wide application range and simple and convenient operation. Besides, the centre frame solves the problems that relative moment is generated between three claws of a traditional centre frame and a workpiece surface, the workpiece surface and the three claws are easy to burn, and the roundness degree of the machined workpiece is poor, thereby facilitating the machining of long axis parts.
Description
Technical field:
The utility model relates to a kind of centre frame that is used for longaxones parts processing, belongs to the frock clamp field of axle class machining.
Background technology:
At present, the used centre frame of machinery industry processing longaxones parts, its three-jaw is as a whole with the support that is fixed on the lathe bed, produce relative motion between three-jaw and the surface of the work during work, then be scorched to death easily if workpiece rotational frequency is higher, be not suitable for rotation processing at a high speed, make that processing efficient is lower, the machining accuracy of surface of the work is not high.If processed workpiece surface roughness is higher, then centre frame is easy to wear, and causes the processed workpiece cylindricity overproof, and easily pull on the surface.In addition, three-jaw is separately adjusted check and correction, and operator's operant level is had relatively high expectations.
Summary of the invention:
The purpose of this utility model is: fixedly processing work of a kind of employing telescoping structure is provided, axle sleeve, protective ring and workpiece rotate synchronously, produce relative motion between the three-jaw of the existing centre frame of solution and the surface of the work, surface of the work and three-jaw are scorched to death easily, centre frame is easy to wear, problems such as processing back workpiece cylindricity difference.And easy and simple to handle, processing efficient height, the centre frame of good processing accuracy.
The utility model is to realize above-mentioned purpose by following technical solution:
This centre frame is made up of base, bearing block, bearing, bearing cap, axle sleeve, protective ring and cake cap, it is characterized in that: bearing block is fixed on the base, by two groups of bearing fixing one axle sleeve is arranged in the bearing block, and bearing cap is equipped with in the bearing block both sides; The two ends of axle sleeve are fixed with a protective ring respectively by three hexagon socket cap head screws.
Described two groups of bearings are respectively double row centripetal cylindrical roller bearing and single-row radial ball bearing, and the cake cap is equipped with in the outside of double row centripetal cylindrical roller bearing, and jump ring is equipped with in the outside of single-row radial ball bearing.
Described three hexagon socket cap head screws evenly are arranged on the axle sleeve.
Slideway two outer ends that described base is connected with bearing block are respectively arranged with adjustment screw.
The utility model beneficial effect compared with prior art is: the hexagon socket cap head screw at this centre frame employing axle sleeve and two ends is processing work fixedly, axle sleeve, protective ring and workpiece rotate synchronously, but any axial workpiece of High-speed machining, workpiece surface roughness and shape there is not any requirement, machining accuracy height, applied widely, and simple, convenient.Changed between the three-jaw of traditional centre frame and the surface of the work and produce relative motion, surface of the work and three-jaw are scorched to death easily, and centre frame is easy to wear, and problems such as processing back workpiece cylindricity difference make the processing of longaxones parts become easily simple.
Description of drawings:
Accompanying drawing is the structural representation of centre frame.
Among the figure: 1, bearing block, 2, bearing, 3, bearing cap, 4, axle sleeve, 5, protective ring, 6, jump ring, 7, base, 8, adjustment screw, 9, the cake cap, 10, hexagon socket cap head screw.
The specific embodiment:
This Rotation Center Rest is made up of bearing block 1, bearing 2, bearing cap 3, axle sleeve 4, protective ring 5, jump ring 6, base 7, adjustment screw 8, cake cap 9 and hexagon socket cap head screw 10.Bearing block 1 is fixed on the base 7, and base 7 is shaped on the slideway that makes its relative slip with the junction of bearing block 1, and two outer ends of slideway are respectively arranged with adjustment screw 8.Be fixed with an axle sleeve 4 by two groups of bearings 2 in the bearing block 1, the bearing cap 3 of fixing two groups of bearings 2 is equipped with in the both sides of bearing block 1; Two groups of bearings 2 are respectively double row centripetal cylindrical roller bearing and single-row radial ball bearing, and cake cap 9 is equipped with in the outside of double row centripetal cylindrical roller bearing, and jump ring 6 is equipped with in the outside of single-row radial ball bearing.The two ends of axle sleeve 4 are fixed with protective ring 5 respectively, and protective ring 5 is fixing by three hexagon socket cap head screws 10, and three hexagon socket cap head screws 10 evenly are arranged on the axle sleeve 4.
This centre frame is fixed on by base 7 on the lathe bed of lathe, by the adjustment screw 8 of adjustment base 7 both sides, and the concentricity that can regulate centre frame and machine tool chief axis, and this adjustment process only needs regulate when using first to get final product.
During work, the major axis part that will process passes axle sleeve 4, adjusts the hexagon socket cap head screw 10 on axle sleeve 4 two ends then, and the major axis part is fastening good, can process safely and reliably.Adopt said structure, axle sleeve 4, protective ring 5 and major axis part form an integral body during work, and by two groups of bearing 2 synchronous rollings rotations, but so any axial workpiece of High-speed machining, workpiece surface roughness and shape there is not any requirement, the machining accuracy height, applied widely, and simple, convenient.
Claims (4)
1, a kind of centre frame, it is made up of base (7), bearing block (1), bearing (2), bearing cap (3), axle sleeve (4), protective ring (5) and cake cap (9), it is characterized in that: bearing block (1) is fixed on the base (7), be fixed with an axle sleeve (4) by two groups of bearings (2) in the bearing block (1), bearing cap (3) is equipped with in bearing block (1) both sides; The two ends of axle sleeve (4) are fixed with a protective ring (5) respectively by three hexagon socket cap head screws (10).
2, centre frame according to claim 1, it is characterized in that: described two groups of bearings (2) are respectively double row centripetal cylindrical roller bearing and single-row radial ball bearing, cake cap (9) is equipped with in the outside of double row centripetal cylindrical roller bearing, and jump ring (6) is equipped with in the outside of single-row radial ball bearing.
3, centre frame according to claim 1 is characterized in that: described three hexagon socket cap head screws (10) evenly are arranged on the axle sleeve (4).
4, centre frame according to claim 1 is characterized in that: slideway two outer ends that described base (7) is connected with bearing block (1) are respectively arranged with adjustment screw (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201909806U CN201261130Y (en) | 2008-09-23 | 2008-09-23 | Centre frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201909806U CN201261130Y (en) | 2008-09-23 | 2008-09-23 | Centre frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201261130Y true CN201261130Y (en) | 2009-06-24 |
Family
ID=40807597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201909806U Expired - Fee Related CN201261130Y (en) | 2008-09-23 | 2008-09-23 | Centre frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201261130Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699696A (en) * | 2012-06-20 | 2012-10-03 | 合肥科烨电物理设备制造有限公司 | Central follow rest for machining fin of heat exchanger |
| CN104907590A (en) * | 2015-06-05 | 2015-09-16 | 河南东方龙机械制造有限公司 | Clamping type lathe tailstock rotating with main shaft and application method |
| CN105108544A (en) * | 2015-09-29 | 2015-12-02 | 泰尔重工股份有限公司 | Clamping method adopting rolling pair for positioning and clamp thereof |
| CN105458748A (en) * | 2015-12-24 | 2016-04-06 | 张家口第一煤矿机械有限公司 | Lathe center frame and use method thereof |
-
2008
- 2008-09-23 CN CNU2008201909806U patent/CN201261130Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699696A (en) * | 2012-06-20 | 2012-10-03 | 合肥科烨电物理设备制造有限公司 | Central follow rest for machining fin of heat exchanger |
| CN104907590A (en) * | 2015-06-05 | 2015-09-16 | 河南东方龙机械制造有限公司 | Clamping type lathe tailstock rotating with main shaft and application method |
| CN105108544A (en) * | 2015-09-29 | 2015-12-02 | 泰尔重工股份有限公司 | Clamping method adopting rolling pair for positioning and clamp thereof |
| CN105108544B (en) * | 2015-09-29 | 2017-11-17 | 泰尔重工股份有限公司 | A kind of clamping method and its fixture positioned using rolling pair |
| CN105458748A (en) * | 2015-12-24 | 2016-04-06 | 张家口第一煤矿机械有限公司 | Lathe center frame and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090624 Termination date: 20120923 |