CN101659014B - Prestressed boring bar clamp for processing camshaft holes of diesel engine - Google Patents
Prestressed boring bar clamp for processing camshaft holes of diesel engine Download PDFInfo
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- CN101659014B CN101659014B CN2009101822676A CN200910182267A CN101659014B CN 101659014 B CN101659014 B CN 101659014B CN 2009101822676 A CN2009101822676 A CN 2009101822676A CN 200910182267 A CN200910182267 A CN 200910182267A CN 101659014 B CN101659014 B CN 101659014B
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- 238000003825 pressing Methods 0.000 claims abstract description 13
- 241000282414 Homo sapiens Species 0.000 claims description 10
- 210000003746 feather Anatomy 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000005484 gravity Effects 0.000 abstract 1
- 238000003754 machining Methods 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The invention relates to a prestressed boring bar clamp for processing camshaft holes of a diesel engine, which can effectively eliminate deformation of a boring bar due to self gravity and cutting force for cutting the camshaft holes of all gears, thus leading the coaxiality of all the gears of processed camshafts to be controlled in the designed requirement. The prestressed boring bar clamp has simple manufacturing technique, cheap price and low cost and comprises a clamp body and a boring bar, wherein the boring bar is provided with a boring cutter; the two ends of the clamp body are respectively provided with a boring template; the upper end of the boring template is provided with a bearing cavity; the boring bar is arranged in the bearing cavity; and the clamp body is provided with a workpiece positioning mechanism, a resetting mechanism and a workpiece pressing mechanism. The prestressed boring bar clamp is characterized by also comprising a sliding column and a rectangular frame, wherein the two transverse ends of the sliding column are arranged on the boring templates; the two ends of the transverse lower part of the rectangular frame are arranged on the sliding column, and the two ends of the transverse upper part thereof are connected with the boring bar by joint bearings which are arranged at the two ends of the boring bar.
Description
(1) technical field
The present invention relates to cam shaft for diesel engine processing tool field, be specially a kind of prestressed boring bar clamp of processing camshaft holes of diesel engine.
(2) background technology
Multi-cylinder diesel engine is the above diesel engine of six cylinders particularly; Its camshaft hole aperture is little, axial dimension is long; So the boring of machining cam axis hole row must do not only thin but also longly; Have a strong impact on the rigidity of process system, simultaneously camshaft aperture tolerance, the cylindricity of each grade camshaft hole, axiality are strict
(3) summary of the invention
To the problems referred to above; The invention provides a kind of prestressed boring bar clamp of processing camshaft holes of diesel engine; It can effectively be eliminated boring and arrange owing to self gravitation, cuts the caused distortion of cutting force of each grade camshaft hole, thereby each grade axiality of the camshaft that processes is controlled in the designing requirement, and its manufacturing process is simple; Low price, cost is low.
Its technical scheme is such: it comprises clamp body and boring row, on the said boring row boring cutter is installed, and said clamp body two ends are equipped with the boring template plate; Said boring template plate upper end is equipped with bearing bore; Said boring row is installed in the said bearing bore, and workpiece detent mechanism, resetting-mechanism and Work-sheet pressing mechanism are installed on the said clamp body, and it is characterized in that: it also comprises traveller and rectangular frame; Said traveller transverse ends is installed on the said boring template plate; Said rectangular frame transverse lower portion two ends are installed on the said traveller, and laterally both upper ends thereof is connected with said boring row through oscillating bearing, and said oscillating bearing is installed on said boring row two ends.
It is further characterized in that:
Said boring row is provided with two; Parallel installation is arranged in said two borings; Said traveller is provided with two; Said two parallel installations of traveller; Said traveller two ends are set in the lining; Said lining is installed in the said boring template plate; Said rectangular frame transverse bottom two ends are installed on the said traveller and through nut and tight, its horizontal top is connected with the outer ring interference fit of said oscillating bearing; Said boring row two ends are placed in the inner ring of said oscillating bearing, and through nut check;
Said boring row is set in the revolution bushing; Be provided with feather key in the said revolution bushing; Said revolution bushing is connected with said feather key screw; Said revolution bushing is installed in the bearing bore; Said revolution bushing outer cover is equipped with angular contact ball bearing; Said angular contact ball bearing is provided with two; Be provided with axle sleeve between said two angular contact ball bearings; Said bearing bore two ends are equipped with bearing cap; Said bearing cap is connected fixing with said boring template plate through screw;
Said detent mechanism comprises coarse positioning part and insert-pull pin mechanism; Said coarse positioning partly comprises location-plate part, spacing leaning on; Said location-plate partly comprises left positioner plate, middle part location-plate and right positioner plate; Said location-plate partly is provided with two groups, and said two groups of location-plates vertically are being symmetrically distributed in said clamp body surface; Said two groups of location-plates are installed on said clamp body surface through screw; The right-hand member of the left end of said left positioner plate, right positioner plate is equipped with spacing leaning on; Said fastening screw mechanism is provided with two covers; Said fastening screw mechanism comprises fastening screw, and it is installed in the little lining; Said little lining is installed in the said clamp body; Said fastening screw is connected with connecting rod through bearing pin; Said connecting rod is connected with crank through bearing pin; Said crank is set in the rotating shaft; Said rotating shaft is connected with miniature lever;
Said resetting-mechanism comprises dead man; Said dead man two ends are installed on the bearing through bearing pin; Said bearing is installed on the said clamp body; The horizon bar of said dead man connects push rod through bearing pin; Said push rod is connected with big handle on being installed on hinged-support through connector;
Said hold-down mechanism comprises pressing plate and hold-down bolt; Have long lumbar hole on the said pressing plate; Said hold-down bolt passes said long lumbar hole; Said hold-down bolt screw top is connected with clamp nut; Said hold-down mechanism is provided with quadruplet, and its symmetry is installed on the said clamp body;
Between said boring template plate and the said clamp body oblique bracing piece is installed; The two ends of said bracing piece are installed on respectively on the Connection Block of said boring template plate and said clamp body; Said Connection Block is installed on said boring template plate and the said clamp body through bolt.
The prestressed boring bar clamp of processing camshaft holes of diesel engine of the present invention, behind the nut at its locking boring row two ends, boring row connects into the overall structure of a high rigidity with rectangular frame, traveller; Can effectively eliminate boring row because self gravitation, the caused distortion of cutting force of cutting each grade camshaft hole; Thereby each grade axiality of the camshaft hole that processes is controlled in the designing requirement, improve end product quality, and its manufacturing process is simple; No special, complex component, cost is low.
(4) description of drawings
Fig. 1 is the main structural representation of looking of the present invention;
Fig. 2 is that the A-A of Fig. 1 is to the sectional structure sketch map;
Fig. 3 is the plan structure sketch map of Fig. 1.
(5) specific embodiment
See Fig. 1, Fig. 2 and Fig. 3; The present invention includes clamp body 25 and boring row 8; On the boring row 8 boring cutter 8 is installed, clamp body 25 two ends are equipped with boring template plate 20 through screw 23, and boring template plate 20 upper ends are equipped with bearing bore; Boring row 8 is installed in the bearing bore, and workpiece detent mechanism, resetting-mechanism and Work-sheet pressing mechanism are installed on the clamp body 25; Structure of the present invention also comprises traveller 44 and rectangular frame 9; Traveller 44 transverse ends are installed on the boring template plate 20; Rectangular frame 9 transverse lower portion two ends are installed on the traveller 44, and laterally both upper ends thereof is connected with boring row 8 through oscillating bearing 2, and oscillating bearing 2 is installed on boring and arranges 8 two ends.Boring row 8 is provided with two, and 8 parallel installations are arranged in two borings; Traveller 44 is provided with two, two traveller 44 parallel installations; Traveller 44 two ends are set in the lining 22; Lining 22 is installed in the boring template plate 20; Rectangular frame 9 transverse bottom two ends are installed on the traveller 44 and through nut 21 and tight, its horizontal top is connected with the outer ring interference fit of oscillating bearing 2; The inner ring that 8 two ends are placed in oscillating bearing 2 is arranged in boring, and through nut check 1; Boring row 8 is set in the revolution bushing 13; Be provided with feather key 5 in the revolution bushing 13; Revolution bushing 13 is connected with feather key 5 screws 16; Revolution bushing 13 is installed in the bearing bore; Revolution bushing 13 outer cover are equipped with angular contact ball bearing 14; Angular contact ball bearing 14 is provided with two; Be provided with axle sleeve 3 between two angular contact ball bearings 14; The bearing bore two ends are equipped with bearing cap 6,46; Bearing cap 6,46 is connected fixing with boring template plate 20 through screw 18; Detent mechanism comprises coarse positioning part and fastening screw mechanism; Wherein coarse positioning partly comprises location-plate part, spacingly leans on 26; Said location-plate partly comprises left positioner plate 58, middle part location-plate 55 and right positioner plate 56; Location-plate partly is provided with two groups, and it vertically is symmetrically distributed in clamp body 25 surfaces; Location-plate is installed on clamp body 25 surfaces through screw 54; The right-hand member of the left end of left positioner plate 58, right positioner plate 56 is equipped with and spacingly leans on 26; Fastening screw mechanism is provided with two covers; Fastening screw mechanism comprises fastening screw 28, and it is installed in the little lining 27; Little lining 27 is installed in the clamp body 25; Fastening screw 28 is connected with connecting rod 39 through bearing pin 31; Connecting rod 39 is connected with crank 30 through bearing pin 31; Crank 30 is set in the rotating shaft 29; Rotating shaft 29 is connected on the bearing 53 and with miniature lever 52 and is connected; Resetting-mechanism comprises dead man 37; Dead man 37 two ends are installed on the bearing 38 through bearing pin 32; Bearing 38 is installed on the clamp body 25 through bolt 33; The horizon bar of dead man 37 connects push rod 34 through bearing pin 35; Push rod 34 is connected with big handle 51 on being installed on hinged-support 50 through connector 49; Hold-down mechanism comprises pressing plate 41 and hold-down bolt 40; 41 have long lumbar hole 59 on the pressing plate; Hold-down bolt 40 passes long lumbar hole 59; Hold-down bolt 40 screw top are connected with clamp nut 42; Hold-down mechanism is provided with quadruplet, and its symmetry is installed on the clamp body 25; Oblique bracing piece 43 is installed between boring template plate 20 and the clamp body 25; The two ends of bracing piece 43 are installed on respectively on the Connection Block 45 of boring template plate 20 and clamp body 25; Connection Block 45 is installed on boring template plate 20 and the clamp body 25 through bolt 48.Among the figure, 4 is nut, and it is to 14 fixations of radial thrust bearing; 10,11,15 is sealing ring, and it can prevent that respectively rubbish from getting in revolution bushing 13 and the bearing bore; 12 are the adjustment pad, and it can adjust the bearing clearance; 17,19,24 is spring washer; 36 is circlip for shaft, and it can prevent that bearing pin 35 from deviating from; 47 is support bar, and it plays the effect of supporting pressing plate 41; 57 is straight pin, and it confirms the position of boring template plate 20 on clamp body 25.
Add man-hour; Workpiece is sling by driving and is put on the clamp body 25; Lean on 26 pairs of workpiece to carry out location, bottom surface and location, side by location- plate 58,55,56 and location; Insert two boring rows 8 (boring this moment row also passes the whole camshaft hole blank hole of body) to revolution bushing 13, arrange 8 two ends in boring and put oscillating bearing 2 backs with nut 1 locking, to produce certain pre-tensile stress.At this moment; 20 (comprising oscillating bearing 2) of boring row, rectangular frame 9, traveller 44 are interconnected to the overall structure of a high rigidity; Thereby the big handle 51 of pulling resetting-mechanism again resets workpiece to drive the dead man rotation; The miniature lever 52 control fastening screws 28 of pulling fastening screw mechanism then insert alignment pins, thereby the clamp nut 42 of tightening hold-down mechanism again makes pressing plate 41 workpiece pressings, begin the boring campaign after boring row and machine tool chief axis are connected; In the boring campaign; Boring row 8 does gyration in uniting under the supporting of revolution bushing 13, oscillating bearing 2, does whole translation feed motion by the rigid body that boring row 8, rectangular frame 9 and traveller are interconnected to, and can bore the whole camshaft holes of a side behind feeding one segment distance; Machine tool chief axis is thrown off this side boring row; Platen translation one segment distance (two row's camshaft hole centre-to-centre spacing) back is connected to accomplish the boring processing of this side camshaft hole with opposite side boring row, after machining workpiece unclamped, and shift workpiece onto the cutter relieving state; Unclamp the nut 2 that 8 two ends are arranged in boring; Withdraw from two boring rows 8, hang away workpiece, promptly accomplish the operation cycle of one procedure.
Claims (5)
1. the prestressed boring bar clamp of a processing camshaft holes of diesel engine, it comprises clamp body and boring row, on the said boring row boring cutter is installed; Said clamp body two ends are equipped with the boring template plate, and said boring template plate upper end is equipped with bearing bore, and said boring row is installed in the said bearing bore; Workpiece detent mechanism, resetting-mechanism and Work-sheet pressing mechanism are installed on the said clamp body; It is characterized in that: it also comprises traveller and rectangular frame, and said traveller transverse ends is installed on the said boring template plate, and said rectangular frame transverse lower portion two ends are installed on the said traveller; Laterally both upper ends thereof is connected with said boring row through oscillating bearing, and said oscillating bearing is installed on said boring row two ends; Said detent mechanism comprises coarse positioning part and fastening screw mechanism; Said coarse positioning partly comprises location-plate part, spacing leaning on; Said location-plate partly comprises left positioner plate, middle part location-plate and right positioner plate; Said location-plate partly is provided with two groups, and said two groups of location-plates part is symmetrically distributed in said clamp body surface in the vertical, and said two groups of location-plates part is installed on said clamp body surface through screw; The right-hand member of the left end of said left positioner plate, right positioner plate is equipped with spacing leaning on; Said fastening screw mechanism is provided with two covers; Said fastening screw mechanism comprises fastening screw, and it is installed in the little lining, and said little lining is installed in the said clamp body; Said fastening screw is connected with connecting rod through bearing pin, and said connecting rod is connected with crank through bearing pin, and said crank is set in the rotating shaft, and said rotating shaft is connected with miniature lever; Said resetting-mechanism comprises dead man; Said dead man two ends are installed on the bearing through bearing pin; Said bearing is installed on the said clamp body, and the horizon bar of said dead man connects push rod through bearing pin, and said push rod is connected with big handle on being installed on hinged-support through connector; Said hold-down mechanism comprises pressing plate and hold-down bolt; Have long lumbar hole on the said pressing plate, said hold-down bolt passes said long lumbar hole, and said hold-down bolt screw top is connected with clamp nut; Said hold-down mechanism is provided with quadruplet, and its symmetry is installed on the said clamp body.
2. the prestressed boring bar clamp of a kind of processing camshaft holes of diesel engine according to claim 1 is characterized in that: said boring row is provided with two, and parallel installation is arranged in said two borings; Said traveller is provided with two, said two parallel installations of traveller, and said traveller two ends are set in the lining, and said lining is installed in the said boring template plate.
3. the prestressed boring bar clamp of a kind of processing camshaft holes of diesel engine according to claim 2; It is characterized in that: said rectangular frame transverse bottom two ends are installed on the said traveller and through nut and tight, its horizontal top is connected with the outer ring interference fit of said oscillating bearing; Said boring row two ends are placed in the inner ring of said oscillating bearing, and through nut check.
4. the prestressed boring bar clamp of a kind of processing camshaft holes of diesel engine according to claim 3 is characterized in that: said boring row is set in the revolution bushing, is provided with feather key in the said revolution bushing, and said revolution bushing is connected with said feather key screw; Said revolution bushing is installed in the bearing bore, and said revolution bushing outer cover is equipped with angular contact ball bearing, and said angular contact ball bearing is provided with two, is provided with axle sleeve between said two angular contact ball bearings; Said bearing bore two ends are equipped with bearing cap, and said bearing cap is connected fixing with said boring template plate through screw.
5. the prestressed boring bar clamp of a kind of processing camshaft holes of diesel engine according to claim 4; It is characterized in that: between said boring template plate and the said clamp body oblique bracing piece is installed; The two ends of said bracing piece are installed on respectively on the Connection Block of said boring template plate and said clamp body, and said Connection Block is installed on said boring template plate and the said clamp body through bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101822676A CN101659014B (en) | 2009-07-07 | 2009-07-07 | Prestressed boring bar clamp for processing camshaft holes of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101822676A CN101659014B (en) | 2009-07-07 | 2009-07-07 | Prestressed boring bar clamp for processing camshaft holes of diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101659014A CN101659014A (en) | 2010-03-03 |
| CN101659014B true CN101659014B (en) | 2012-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101822676A Active CN101659014B (en) | 2009-07-07 | 2009-07-07 | Prestressed boring bar clamp for processing camshaft holes of diesel engine |
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| Country | Link |
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| CN (1) | CN101659014B (en) |
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| CN102000856B (en) * | 2010-12-15 | 2012-08-15 | 重庆大江工业有限责任公司 | General drill jig |
| US9855642B2 (en) | 2011-07-12 | 2018-01-02 | Ming Chieh Wu | Effort-saving locking pliers |
| US10207393B2 (en) | 2011-07-12 | 2019-02-19 | Ming Chieh Wu | Locking pliers |
| TW201302394A (en) | 2011-07-12 | 2013-01-16 | Ming-Jie Wu | Universal pliers |
| CN102357663B (en) * | 2011-10-26 | 2013-01-02 | 南通润邦重机有限公司 | Grooving mechanism |
| CN103769887B (en) * | 2013-12-17 | 2016-06-29 | 柳州瑞明威罗动力机械有限公司 | Camshaft end face milling centering frock |
| CN109605071A (en) * | 2018-11-30 | 2019-04-12 | 安庆中船动力配套有限公司 | A kind of camshaft hole boring fixture |
| CN111906564B (en) * | 2020-07-15 | 2024-07-23 | 聊城新泺机械有限公司 | A diesel engine crankshaft hole and camshaft hole machining fixture and use method thereof |
| CN112676879A (en) * | 2020-12-15 | 2021-04-20 | 芜湖永裕汽车工业股份有限公司 | Engine cylinder cover camshaft hole boring method |
| CN112872841A (en) * | 2020-12-15 | 2021-06-01 | 芜湖永裕汽车工业股份有限公司 | Clamp for boring engine cylinder cover |
| CN114749982B (en) * | 2021-05-19 | 2023-07-07 | 江南重工有限公司 | Boring row bracket with good stability for machining double-cutting composite holes |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5221165A (en) * | 1992-01-21 | 1993-06-22 | Litton Industrial Automation Systems, Inc. | Camshaft bore machining method and apparatus |
| CN2307650Y (en) * | 1997-09-29 | 1999-02-17 | 贺祥生 | Special boring mill for processing engine cylinder head camshaft dead eye |
| CN2664819Y (en) * | 2003-11-21 | 2004-12-22 | 三一重工股份有限公司 | Boring gripper capable of boring on the drill press |
| JP2006305705A (en) * | 2005-05-02 | 2006-11-09 | Mitsubishi Electric Corp | Machining jig |
| CN201124255Y (en) * | 2007-12-25 | 2008-10-01 | 南阳二机石油装备(集团)有限公司 | Clamp for small case boring |
-
2009
- 2009-07-07 CN CN2009101822676A patent/CN101659014B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5221165A (en) * | 1992-01-21 | 1993-06-22 | Litton Industrial Automation Systems, Inc. | Camshaft bore machining method and apparatus |
| CN2307650Y (en) * | 1997-09-29 | 1999-02-17 | 贺祥生 | Special boring mill for processing engine cylinder head camshaft dead eye |
| CN2664819Y (en) * | 2003-11-21 | 2004-12-22 | 三一重工股份有限公司 | Boring gripper capable of boring on the drill press |
| JP2006305705A (en) * | 2005-05-02 | 2006-11-09 | Mitsubishi Electric Corp | Machining jig |
| CN201124255Y (en) * | 2007-12-25 | 2008-10-01 | 南阳二机石油装备(集团)有限公司 | Clamp for small case boring |
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|---|---|
| CN101659014A (en) | 2010-03-03 |
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