CN102658458B - Manufacturing method of pedestal bearing for turbocharger and positioning tool for same - Google Patents
Manufacturing method of pedestal bearing for turbocharger and positioning tool for same Download PDFInfo
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- CN102658458B CN102658458B CN201210155206.2A CN201210155206A CN102658458B CN 102658458 B CN102658458 B CN 102658458B CN 201210155206 A CN201210155206 A CN 201210155206A CN 102658458 B CN102658458 B CN 102658458B
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Abstract
The invention discloses a manufacturing method of a pedestal bearing for a turbocharger and a positioning tool for the same. The manufacturing method comprises the following machining procedures of: 1), roughly turning one end surface and a hole of a workpiece; 2), roughly turning the other end surface and an outer circle of the workpiece; 3), annealing the workpiece to remove stress; 4), carrying out finish turning on the end surface and the hole; 5), carrying out the finish turning on the other end surface and the hole; 6), milling a semicircular positioning groove; 7), drilling radial holes at two ends; 8), milling the flat and square parts of the outer circle; 9), removing burrs by a bench worker; 12), milling an oil applying wedge surface of a thrust surface; 13), carrying out flaw detection; 14), removing the burrs by the bench worker and cleaning a part; and 15), carrying out comprehensive detection. The procedure 3) is adopted between the procedure 2) and the procedure 4) to anneal the workpiece to remove the stress; a procedure 10) and a procedure 11) are adopted between the procedure 9) and the procedure 12); the procedure 10) comprises the following steps of: adopting the positioning tool, positioning the outer circle of the workpiece by utilizing a tool hole, compacting the thrust surface of the workpiece, and accurately grinding the holes; and the procedure 11) comprises the following steps of: positioning the holes by utilizing a taper shaft, and accurately grinding the outer circle and the thrust surface. The manufacturing method and the positioning tool have the advantages that the procedures are arranged reasonably, and the machining quality and the machining efficiency can be effectively improved.
Description
Technical field
The present invention relates to a kind of block bearing manufacture method and positioning tool thereof, particularly a kind of turbocharger block bearing manufacture method and positioning tool thereof.
Background technology
The manufacture method of existing turbocharger block bearing has 15 procedures, successively: (1) casting annealing destressing; (2) rough turn end face and hole; (3) rough turn other end and cylindrical; (4) finish turning end face and hole; (5) finish turning other end and cylindrical; (6) milling semicircle locating slot; (7) bore two ends radial hole; (8) the flat side of cylindrical milling; (9) pincers worker deburring; (10) hard three-jaw folder cylindrical, fine grinding hole and thrust face; (11) use spindle taper locating hole, fine cylindrical; (12) the milling thrust face wedge surface that oils; (13) flaw detection; (14) pincers worker deburring, cleaning part; (15) comprehensive test.
Although can manufacture turbocharger block bearing according to above-mentioned manufacture method, but adopt the method for above-mentioned manufacture turbocharger block bearing to have following shortcoming: 1, in operation (2) and (3) to the rough turn rear easy generation machining stress of workpiece, must eliminate machining stress, but workpiece has just been done destressing processing in operation (1), only need like this except workpiece stress, cannot eliminate machining stress, for high-precision part, still have the defect of distortion.
While 2, refining hole and thrust face in operation (10), employing be hard three-jaw, clamping force is excessive, can cause part deformation, hole out of fine grinding is seriously overproof in circularity, causes part to scrap.
3, operation (11) is used after location, the hole processing excircles of operation (10) distortion again, and the circularity that makes cylindrical is also serious overproof and scrap, and has not only increased processing cost, has also increased the process-cycle, and production efficiency seriously reduces.
In order to eliminate above-mentioned shortcoming, adopted optimization manufacture method, successively: (1) casting annealing destressing; (2) rough turn end face and hole; (3) rough turn other end and cylindrical; (4) finish turning end face and hole; (5) finish turning other end and cylindrical; (6) milling semicircle locating slot; (7) bore two ends radial hole; (8) the flat side of cylindrical milling; (9) pincers worker deburring; (10) soft three-jaw folder cylindrical, finish turning hole and thrust face; (11), scrape endoporus and radial hole joint, two ends raised points;
(12) use spindle taper locating hole, fine cylindrical; (13) the milling thrust face wedge surface that oils; (14) flaw detection; (15) pincers worker deburring, cleaning part; (16) comprehensive test.
In above-mentioned operation, although adopt soft three-jaw, can overcome in process, after clamping part, prevent the distortion of part, but still there is following deficiency in it: 1, in operation (2) and (3) to the rough turn rear easy generation machining stress of workpiece, must eliminate machining stress, but workpiece has just been done destressing processing in operation (1), only needs like this except workpiece stress, cannot eliminate machining stress, for high-precision part, still have the defect of distortion.
2, adopt soft three-jaw clamping cylindrical, still have distortion, cannot guarantee that the circularity of part is qualified completely.
3,, because operation (7) has been bored the radial hole at two ends, causing turning in operation (10) is interrupted cut, at the edge of radial hole, there will be little projection, causes workpiece still can not meet circularity requirement.
4, the small embossment occurring in order to eliminate operation (10) processing endoporus, must increase operation (11) and scrape endoporus, but after causing like this scraping endoporus, endoporus can not meet circularity requirement.
5, adopt in operation (10) finish turning hole mode to process, due to finish turning and grinding ratio, roughness precision is lower, cannot meet workpiece requirement, finally can only reach roughness requirement by polished bore, but the whole circularity in hole is by guaranteeing, causes workpiece to scrap.
6, thrust face adopts turning, and roughness can not reach Ra0.8.
7, the hole dimension tolerance that 6 class precisions are controlled in turning does not have grinding easily to guarantee.
Summary of the invention
First object of the present invention is just to provide a kind of operation and arranges rationally, can effectively improve the quality of processing and the turbocharger block bearing manufacture method of efficiency.
Second object of the present invention is just to provide a kind of positioning tool that prevents that turbocharger radial journal bearing is out of shape in process.
First object of the present invention is to realize by such technical scheme, a kind of turbocharger block bearing manufacture method, and 1), rough turned piece end face and hole its manufacturing procedure comprises successively:; 2), rough turn other end and cylindrical; 4), finish turning end face and hole; 5), finish turning other end and operation 4) described in hole; 6), milling semicircle locating slot; 7) bore two ends radial hole; 8), the flat side 9 of cylindrical milling) pincers worker deburring; 12), the milling thrust face wedge surface that oils; 13), flaw detection; 14), pincers worker deburring, cleaning part; 15), comprehensive test; It is characterized in that: in operation 2) and operation 4) between adopt operation 3), by the workpiece destressing of annealing; In operation 9) and operation 12) between adopt operation 10) and operation 11), wherein operation 10), adopt positioning tool, utilize frock hole positioning workpieces cylindrical, workpiece pressing thrust face, fine grinding hole 9; Operation 11), use taper shaft locating hole, fine cylindrical and thrust face 10.
Wherein, operation 10) in, behind fine grinding hole, making hole dimension tolerance is 6 class precisions, guarantees the circularity precision in hole and reaches roughness Ra 0.8.
Second object of the present invention is to realize by such technical scheme: in described operation 10) in positioning tool comprise clamp body and the capable pressing plate of hook, described clamp body comprises positioning tube and is arranged on positioning tube one end and is with positioning tube the connecting plate being wholely set, at the center of described positioning tube, be provided with the installing hole that runs through positioning tube and connecting plate, on the other end end face of positioning tube, be provided with the hook pressure plate locating hole of pressing for hook-type is installed, described hook pressure plate is connected with positioning tube by the screw with spring, on described connecting plate, is provided with screw hole.
Wherein, described hook pressure plate locating hole and screw hole are three, and are evenly arranged on positioning tube and connecting plate.
Owing to having adopted technique scheme, the present invention has advantages of as follows:
1. rough turnly rear workpiece is done to annealing in process, eliminated the casting stress of workpiece own and machining stress, prevented workpiece deformation;
2. adopt positioning tool to carry out the location of excircle of workpiece, compress thrust face, eliminated due to hard three-jaw or soft three-jaw holding workpiece and the situation of cylindrical distortion;
3. pair hole adopts fine grinding, easily guarantees the hole dimension tolerance of 6 class precisions, also easily guarantees that circularity precision and the roughness in hole reaches Ra0.8;
4. pair hole adopts fine grinding, has avoided the small embossment that occurs due to turning hole, has reduced the operation of scraping endoporus, has also eliminated and has scraped after endoporus, and endoporus can not meet the problem that circularity requires;
5. thrust face adopts the means of fine grinding, makes roughness easily reach Ra0.8;
6. adopt the installing hole of positioning tool as positioning datum, make in operation 11) in easily meet cylindrical and thrust face dimensional accuracy and form and position tolerance precision, improved qualification rate and the production efficiency of product.
Accompanying drawing explanation
Accompanying drawing of the present invention is described as follows:
Fig. 1 is turbocharger block bearing structural representation of the present invention;
Fig. 2 is the positioning tool structural representation that turbocharger block bearing is housed in the present invention;
Fig. 3 is the A-A cutaway view of Fig. 2.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail, but the present invention is not limited to these embodiments, any improvement on the present embodiment essence spirit or substitute, still belongs to the claims in the present invention scope required for protection.
Embodiment 1: as shown in Figure 1, a kind of turbocharger block bearing manufacture method, 1), rough turned piece end face and hole its manufacturing procedure comprises successively:; 2), rough turn other end and cylindrical; 4), finish turning end face and hole; 5), finish turning other end and operation 4) described in hole; 6), milling semicircle locating slot; 7) bore two ends radial hole; 8), the flat side 9 of cylindrical milling) pincers worker deburring; 12), the milling thrust face wedge surface that oils; 13), flaw detection; 14), pincers worker deburring, cleaning part; 15), comprehensive test; It is characterized in that: in operation 2) and operation 4) between adopt operation 3), by the workpiece destressing of annealing; In operation 9) and operation 12) between adopt operation 10) and operation 11), wherein operation 10), adopt positioning tool, utilize frock hole positioning workpieces cylindrical, workpiece pressing thrust face, fine grinding hole; Operation 11), use taper shaft locating hole, fine cylindrical and thrust face.
Wherein, operation 10) in, behind fine grinding hole, making hole dimension tolerance is 6 class precisions, guarantees the circularity precision in hole and reaches roughness Ra 0.8.
In the present invention, be first workpiece to be carried out rough turnly, then carry out annealing in process, can directly eliminate the casting stress of workpiece own and machining stress like this; In operation 10) in, adopt positioning tool to carry out the location of excircle of workpiece, and then compress thrust face, eliminated due to hard three-jaw or soft three-jaw holding workpiece and the situation of cylindrical distortion; In operation 10) in, hole is adopted to the means of fine grinding, easily guarantee the hole dimension tolerance of 6 class precisions, also the circularity precision and the roughness that easily guarantee hole reach Ra0.8, meanwhile, hole are adopted to fine grinding, avoided the small embossment occurring due to turning hole, reduced the operation of scraping hole, also eliminated and scraped behind hole, hole can not meet the problem that circularity requires; In operation 11) in, the thrust face of workpiece adopts the means of fine grinding, makes roughness easily reach Ra0.8:
Adopt the installing hole of positioning tool as positioning datum, make in operation 11) in easily meet cylindrical and thrust face dimensional accuracy and form and position tolerance precision, improved qualification rate and the production efficiency of product.
As shown in Figure 2,3, in described operation 10) in positioning tool comprise clamp body and the capable pressing plate of hook (1), described clamp body comprises positioning tube (2) and is arranged on positioning tube (2) one end and is with positioning tube (2) connecting plate (3) being wholely set, at the center of described positioning tube (2), be provided with the installing hole 4 that runs through positioning tube 2 and connecting plate 3, on the other end end face of positioning tube 2, be provided with for the hook pressure plate locating hole 5 of hook pressure plate 1 is installed, described hook pressure plate 1 is connected with positioning tube 2 by the screw 7 with spring 6, on described connecting plate 3, is provided with screw hole 8.
Described hook pressure plate locating hole 5 and screw hole 8 are three, and are evenly arranged on positioning tube 2 and connecting plate 3.
In the present invention, positioning tool is to use like this: first workpiece is packed in installing hole 4, then by hook pressure plate 1 and screw 4, be fixed, finally this frock is installed on grinding machine by screw hole, screw, nut.
Claims (3)
1. turbocharger block bearing manufacture method and a positioning tool thereof, 1), rough turned piece end face and hole its manufacturing procedure comprises successively:, 2), rough turn other end and cylindrical, 4), finish turning end face and hole, 5), finish turning other end and operation 4) described in hole, 6), milling semicircle locating slot, 7) bore two ends radial hole, 8), the flat side of cylindrical milling, 9) pincers worker deburring, 12), the milling thrust face wedge surface that oils, 13), flaw detection, 14), pincers worker deburring, cleaning part, 15), comprehensive test, it is characterized in that: in operation 2) and operation 4) between adopt operation 3), by the workpiece destressing of annealing, in operation 9) and operation 12) between adopt operation 10) and operation 11), wherein operation 10), adopt positioning tool, utilize frock hole positioning workpieces cylindrical, workpiece pressing thrust face, fine grinding hole (9), operation 11), use taper shaft locating hole, fine cylindrical and thrust face (10), in described operation 10) in positioning tool comprise clamp body and the capable pressing plate of hook (1), described clamp body comprises positioning tube (2) and is arranged on positioning tube (2) one end and is with positioning tube (2) connecting plate (3) being wholely set, at the center of described positioning tube (2), be provided with the installing hole (4) that runs through positioning tube (2) and connecting plate (3), on the other end end face of positioning tube (2), be provided with for the hook pressure plate locating hole (5) of hook pressure plate (1) is installed, described hook pressure plate (1) is connected with positioning tube (2) by the screw (7) with spring (6), on described connecting plate (3), be provided with screw hole (8).
2. turbocharger block bearing manufacture method as claimed in claim 1 and positioning tool thereof, is characterized in that: operation 10), behind fine grinding hole, making hole dimension tolerance is 6 class precisions, guarantees the circularity precision in hole and reaches roughness Ra 0.8.
3. turbocharger block bearing manufacture method as claimed in claim 2 and positioning tool thereof, is characterized in that: described hook pressure plate locating hole (5) and screw hole (8) are three, and be evenly arranged on positioning tube (2) and connecting plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210155206.2A CN102658458B (en) | 2012-05-18 | 2012-05-18 | Manufacturing method of pedestal bearing for turbocharger and positioning tool for same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210155206.2A CN102658458B (en) | 2012-05-18 | 2012-05-18 | Manufacturing method of pedestal bearing for turbocharger and positioning tool for same |
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| CN102658458A CN102658458A (en) | 2012-09-12 |
| CN102658458B true CN102658458B (en) | 2014-04-16 |
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| CN103084807B (en) * | 2013-02-03 | 2016-04-20 | 余胜东 | sliding bearing processing technology |
| CN103506818B (en) * | 2013-09-25 | 2016-08-17 | 宁波万航实业有限公司 | The forming method of flange clutch can blank |
| CN104227345B (en) * | 2014-08-21 | 2017-01-18 | 贵州凯星液力传动机械有限公司 | Processing method for high-precision thin step shaft and grinding chuck for processing method |
| CN104439961A (en) * | 2014-11-19 | 2015-03-25 | 柳州科尔特锻造机械有限公司 | Method for machining wheel edge supporting shaft |
| CN105690011A (en) * | 2014-11-26 | 2016-06-22 | 无锡市锡北视听设备厂 | Manufacturing method for regulating device for processing precision workpiece |
| CN104816246B (en) * | 2015-05-15 | 2017-03-08 | 重庆江增船舶重工有限公司 | The special purpose grinder fixture of supercharger sliding bearing |
| CN105499938A (en) * | 2016-02-01 | 2016-04-20 | 余晓娜 | Sliding bearing machining process |
| CN105965206B (en) * | 2016-05-10 | 2017-11-07 | 重庆江增船舶重工有限公司 | The processing method and its mill instrument of turbocharger collar thrust bearing |
| CN106181235A (en) * | 2016-07-12 | 2016-12-07 | 合肥新沪屏蔽泵有限公司 | A kind of processing technique of canned motor pump axle sleeve |
| CN107160114B (en) * | 2017-07-14 | 2019-05-10 | 重庆江增船舶重工有限公司 | The processing method of floating disc |
| CN109262212B (en) * | 2018-12-06 | 2020-10-13 | 中国航发哈尔滨轴承有限公司 | Method for machining rod end joint bearing of aircraft drag parachute |
| CN110936105A (en) * | 2019-09-29 | 2020-03-31 | 重庆江增船舶重工有限公司 | Processing method of axial anti-rotation bearing |
| CN116673705B (en) * | 2023-08-03 | 2023-10-13 | 东方电气集团东方汽轮机有限公司 | Manufacturing method of high-precision sleeve part |
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