CN101318299A - Inclined plane hole alignment tool and orientation method for drilling cooling water hole on cylinder cap - Google Patents
Inclined plane hole alignment tool and orientation method for drilling cooling water hole on cylinder cap Download PDFInfo
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- CN101318299A CN101318299A CNA2008100395034A CN200810039503A CN101318299A CN 101318299 A CN101318299 A CN 101318299A CN A2008100395034 A CNA2008100395034 A CN A2008100395034A CN 200810039503 A CN200810039503 A CN 200810039503A CN 101318299 A CN101318299 A CN 101318299A
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Abstract
The invention relates to an orientation tool for drilling on an inclined surface, structurally comprising a Morse core shaft, cross shafts, an adjusting copper sleeve, a line finding plate, an axle sleeve, rollers and retaining rings at shaft ends. The upper part of the Morse core shaft is a Morse taper shank, the lower part is a forked body which is opened with cross shaft holes, and the axis line of the Morse taper shank is vertical to and intersects with that of the cross shaft holes; the cross shafts pass through the cross shaft holes in the Morse core shaft, the cross shaft at the inner side of the forked body is provided with the adjusting copper sleeve and the line finding plate, and the cross shaft at the outer side of the forked body is symmetrically provided with two rollers; the plane of the vertical cross shaft on the line finding plate which locates in an knife edge part is a vertical reference plane, while the plane which is parallel with the cross shafts is a parallel reference plane; the intersection lines of the vertical reference plane and the parallel reference plane are a knife edge line, and the line finding plate can rotate freely within 180 DEG on the cross shafts. The orientation tool for drilling on the inclined surface of the invention has the advantages of simple structure, low cost, high precision of direction spotting and convenient and rapid operation and can meet the precision requirement of work-piece inclined hole processing.
Description
Technical field
The present invention relates to the machined field, be to be used for the preceding direction centering of plain radial drilling machine processing beveled aperture, particularly be applicable to a kind of inclined-plane boring directional orientation tool of marine low speed diesel engine cylinder head cooling water hole boring the place ahead to centering, and the orientation method when utilizing this directional orientation tool factory ship with the cylinder cover of low-speed diesel cooling water hole.
Background technology
In machining industry, often running into plain radial drilling machine needs to process inclined hole on dish type or cylindrical work.According to 6 point location principles of workpiece, the denominator of dish type or cylindrical work is exactly to lack restriction around the free degree that its axial line rotates, and also is its circumferential location benchmark that lacks.To use tiltable table top processing inclined hole to be example, the inclination angle of table top is measured easily and is determined, and workpiece is (to have limited 3 frees degree) on the benchmark placed mesa and after the cylindrical of workpiece was installed 2 reference columns (having limited 2 frees degree), the just remaining free degree of rotating around the workpiece axial line did not limit with the plane.Therefore, plain radial drilling machine is processed inclined hole on dish type or cylindrical work before, often need to determine the direction of inclined hole, its circumferential angle of centering.
The marine low speed diesel engine cylinder head is a kind of disc type work than major types, require in the design to get out a plurality of cooling water holes near its combustion chamber, these cooling water holes are distributed on cylinder head top and the circumferencial direction, and all form an angle with the central axis of cylinder head is crossing, some cylinder head also requires the cooling water hole two ends to bore middle quadrature.Processing these cooling water holes is one of main processing contents of cylinder head.The structure of marine low speed diesel engine cylinder head as shown in Figure 1, Fig. 1 is the schematic diagram of cooling water hole on the marine low speed diesel engine cylinder head.
In the prior art, be divided into two big classes usually for the processing of cooling water hole on the cylinder head, a class is to adopt to hole on numerical control machining center, and main shaft angle adjustment and workbench by numerical control rotate the processing request that reaches cooling water hole on the cylinder head; Another kind of is on plain radial drilling machine, uses the turntable of tiltable table top to hole, thereby reaches the processing request of cooling water hole on the cylinder head.
Before using every batch of cylinder head cooling water hole of plain radial drilling machine processing, all relate to how to guarantee the axial line of holing and cylinder head axial line intersect in same vertical plane.Being installed on the turntable of tiltable table top with workpiece is example, after the angle of inclination of table top is determined, just needs the circumferential angle of centering workpiece.Because the weight of cylinder head workpiece own is heavier, be difficult for when hanging on turntable aiming at the turntable scale, often adopt other method to come the initial angle of centering workpiece.Employing is the mark signature line on cooling water hole, horizontal level a kind of method of also can yet be regarded as in the check and correction cross hairs, but the centering synthesis precision is relatively poor relatively, also is easy to generate other problems.
Traditional method is to adopt to place a scribing block on work top, in order to the way of smoothing horizontal center line it being gone to requires the position (convenient for explaining, here the center line consistent with a certain cooling water hole direction of axis line of institute centering is called vertical center line, perpendicular center line is called horizontal center line).Then radial drilling machine drilling rod center (apex point) is aimed at this back, center, processed hole (sample dotting punch) locking.So, the orientation of boring is finished just now, and all oblique cooling water holes of processing on this aspect of cylinder head of this batch only need rotating table, gets final product after making apex point aim at this center, processed hole sample dotting punch.
Adopt the problem that way produced of scribing block smoothing horizontal center line to be: if all cooling water holes none just in time be positioned on the cylinder head cross centre line, this just need preset a boring alignment point on cross centre line, have only when apex point and aims at the boring alignment point and aim at real bore position with could turntable being gone to apex point after the drilling rod locking again, operative employee's quality accident at alignment point mistake brill just takes place in easily.
Summary of the invention
The object of the present invention is to provide the orientation method when boring cooling water hole on a kind of inclined-plane boring directional orientation tool and the cylinder head.Utilize the inclined hole cooling water hole on the marine low speed diesel engine cylinder head particularly on the processing disc-shaped or cylindricality workpiece of this tool and method, cooperate the turntable of plain radial drilling machine and tiltable table top to use, can accurately find out its accurate position rapidly, and the travel direction centering, improved the precision and the operating efficiency of boring processing.
The use principle of inclined-plane boring directional orientation tool among the present invention.
1. the axial line j of Morse taper shank (drilling rod) and edge of a knife line k have formed a plane A, and a certain common bus on edge of a knife line and two the roller cylindricals also formed a plane B, and these two planes are vertical mutually, and its intersecting lens is exactly edge of a knife line k;
2. crossing the beveled aperture axial line m of designing requirement and a plane vertical with plane D is C, plane D is the plane at cylinder cover upper planar surface place, if at standardized the projection line p of this beveled aperture axial line m on the D of plane on the D of plane, then this projection line p is exactly the intersecting lens of plane C and plane D, as shown in Figure 2.
3. overlap with plane D and two intersecting lens k when overlapping with p as above-mentioned plane B, A isoplanar, plane C just overlaps at grade.The beveled aperture axial line m that plane C goes up designing requirement and the axial line j of the Mohs shank (drilling rod) on the A of plane are with regard at grade.
If 4. the angle of the beveled aperture axial line m of designing requirement and inclined-plane D is δ, when the angle of inclined-plane and horizontal plane is β=90 °-δ, because the axial line j of Mohs shank (drilling rod) is vertical with horizontal plane, then the angle of j and inclined-plane D also is δ (β and δ be a complementary angle each other), and j and m are with regard to parallel (alternate interior angle equates).
The axial line j of 5. mobile Mohs shank (drilling rod) is to the beveled aperture axial line m place of designing requirement, and j overlaps with m, and promptly actual boring axial line j is consistent with the beveled aperture axial line m of designing requirement.
Based on above-mentioned principle, technical scheme of the present invention is as follows:
Boring directional orientation tool in a kind of inclined-plane comprises Mohs mandrel, transverse axis, adjustment copper sheathing, to line plate, axle sleeve, roller and shaft end ring on this tool construction:
Described Mohs mandrel top is Morse taper shank, and the bottom is a fork, and two leaf homogeneous phases of fork are to having the transverse axis hole, and the axial line of Morse taper shank is vertical with described transverse axis hole axial line and crossing;
Described transverse axis is through in the transverse axis hole on the Mohs mandrel, is provided with to adjust copper sheathing and to the line plate, described adjustment copper sheathing is two, is distributed in described both sides to the line plate, is arranged with two rollers on the transverse axis of the outside of fork on the transverse axis of fork inboard;
Described is the vertical reference face to the plane that is positioned at the select shaft that blade portion divides on the line plate, the plane of parallel described transverse axis is parallel datum level, the intersection of described vertical reference face and parallel datum level is an edge of a knife line, describedly can freely rotate in 180 ° of scopes at transverse axis the line plate;
The radius of described roller equals the axial line of transverse axis to the distance to the parallel datum level of line plate.
A kind of utilize above-mentioned inclined-plane boring directional orientation tool to diesel engine cylinder head for ship cooling water hole boring predetermination to method, the axis angle of cooling water hole and cylinder head is α=15 ° on the diesel engine cylinder head for ship, β=52 °, this method comprises the steps:
The first step, determine the position of holing on the cylinder head on diesel engine cylinder head for ship, to mark cross hairs by the waist, the position of on cross hairs by the waist, marking each oblique cooling water hole again, the cooling water hole center is struck sample and is dashed;
Second goes on foot, cylinder head is fixed on the rig floor, lid rig floor tiltable table top, and adjusting the table top angle is 52 °;
The 3rd step, mark the school line transfer, this school line transfer is drawn near the cylinder head plane the diesel engine cylinder head for ship cooling water hole, and is consistent with the oblique cooling water hole direction of axis line of lid;
The 4th step, boring directional orientation tool in inclined-plane is installed, under the drilling rod unlocked state of drilling machine, the Morse taper shank on Mohs mandrel top is installed in the radial drilling machine drilling rod tapered hole;
The 5th step, the perpendicularity of cooling water hole on the verification cylinder head, the inclined-plane directional orientation tool of holing is moved near the line transfer of described school, the plane of stroke school line transfer on roller cylindrical tangent plane that common bus on the edge of a knife line of line plate and two the roller cylindricals is formed and the cylinder head is fitted tightly, check the depth of parallelism of school line transfer and edge of a knife line, mobile turntable and drilling rod overlap with edge of a knife line until the school line transfer, and it is directed to finish boring.
Compared with prior art, technical scheme of the present invention has following technological merit:
That inclined-plane of the present invention boring directional orientation tool has is simple in structure, cost is low, advantages such as the precision of direction centering is higher and easy to use, quick, can make plain radial drilling machine on the tiltable table top or on the tiltable turntable, direction centering before the inclined hole that dish type or cylindrical work are marked any direction of angle excursion direction line is in the plane processed can satisfy the position accuracy demand of workpiece inclined hole processing.
Description of drawings
Fig. 1 is the structural representation of cooling water hole on the marine low speed diesel engine cylinder head.
Fig. 2 is the use principle figure of boring directional orientation tool in inclined-plane among the present invention.
Fig. 3 is that there is the error by principle schematic diagram in boring orientation in inclined-plane among the present invention.
Fig. 4 is that inclined-plane facing of directional orientation tool of boring partly cutd open figure among the present invention.
Fig. 5 is that figure is partly cutd open in the side-looking of boring directional orientation tool in inclined-plane among the present invention.
Fig. 6 utilizes boring directional orientation tool in inclined-plane to the enforcement schematic diagram of diesel engine cylinder head for ship cooling water hole boring predetermination to operation among the present invention.
The specific embodiment
Come orientation method when boring cooling water hole on the inclined-plane boring directional orientation tool cylinder head of the present invention to do further below in conjunction with accompanying drawing and specific embodiment and elaborate, but can not limit protection scope of the present invention with this.
The cylinder head of certain large-scale marine low speed diesel engine is installed near the combustion chamber on the diesel engine, except that need 2 * 27 of processing radially cooling water hole (with the angle of cylinder head axis be 90 °), also need process 43 pairs of oblique cooling water holes, the every pair of oblique cooling water hole respectively with angle α=15 of cylinder head axis °, β=52 °, and pierce from two ends, with 143 ° angle quadrature, therefore require when boring, must guarantee its positional precision.
β=52 ° the way that oblique cooling water hole is common is on the processing cylinder head:
Mark on the basis in (one week and one week of vertical center line of horizontal center line) of cross centre line by the waist in cylinder head, mark each oblique cooling water hole position again, striking sample at each oblique cooling water hole center dashes, then the cylinder cover upper planar surface is fixed on the turntable of tiltable table top, table top adjusted in advance by this turntable and horizontal plane angle is 52 °.
Need be when processing above-mentioned hole according to boring directional orientation tool in inclined-plane of the present invention, the structure of this instrument as shown in Figure 4 and Figure 5, Fig. 4 is that inclined-plane facing of directional orientation tool of boring partly cutd open figure among the present invention, Fig. 5 is that figure is partly cutd open in the side-looking of boring directional orientation tool in inclined-plane among the present invention.As seen from the figure, comprise Mohs mandrel 01, transverse axis 02 on the inclined-plane of the present invention boring directional orientation tool structure, adjust copper sheathing 03, to line plate 04, axle sleeve 05, roller 06 and shaft end ring 08.
Mohs mandrel 01 top is Morse taper shank, and the bottom is a fork, and two leaf homogeneous phases of fork are to having the transverse axis hole, and the axial line of Morse taper shank is vertical with described transverse axis hole axial line and crossing.
To being positioned at the plane perpendicular to transverse axis 02 that blade portion divides on the line plate 04 is the vertical reference face, the plane that is parallel to transverse axis 02 is parallel datum level, the intersection of above-mentioned vertical reference face and parallel datum level is the edge of a knife line to line plate 04, can freely rotate in 180 ° of scopes on transverse axis 02 line plate 04, the direction of rotating is for being the axle center with transverse axis 02, about all rotatable 90 °.
The radius of roller 06 equals the axial line of transverse axis 03 to the distance to the parallel datum level of line plate, can guarantee that then bus common on edge of a knife line and the roller 06 forms a plane.
When cylinder head is carried out orientation, need a certain cooling water hole axial line m ' that will be positioned on the cylinder head cross centre line to forward the upright position to, otherwise certain angle ε of its deflection will make cooling water hole axial line m ' and the cylinder head axial line n segment distance L that staggers, as shown in Figure 3, Fig. 3 is that there is the error by principle schematic diagram in boring orientation in inclined-plane among the present invention, uses boring directional orientation tool in inclined-plane of the present invention just can avoid such problem to produce.
Utilize boring directional orientation tool in inclined-plane of the present invention, need earlier near the cylinder head plane the arbitrary processed oblique cooling water hole to be holed, mark a school line transfer consistent (direction line) p with this oblique cooling water hole direction of axis line, see Fig. 6, Fig. 6 utilizes boring directional orientation tool in inclined-plane to the enforcement schematic diagram of diesel engine cylinder head for ship cooling water hole boring predetermination to operation among the present invention.
Then, use boring directional orientation tool in inclined-plane of the present invention, the Mohs shank is installed in the radial drilling machine drilling rod tapered hole.Because drilling rod can freely not rotate, can freely rotate in 180 ° of scopes on transverse axis the line plate under locking state, so the plane of the school line transfer that has marked on roller cylindrical tangent plane that a certain common bus on line plate edge of a knife line and two the roller cylindricals formed and the workpiece to be machined cylinder head is fitted tightly.At this moment, check the depth of parallelism of school line transfer and edge of a knife line, according to the parallel situation of school line transfer with edge of a knife line, rotating table and mobile drilling rod overlap with edge of a knife line until this school line transfer.So far, the oblique cooling water hole axis parallel that this of drilling rod axial line and designing requirement is processed, the orientation of boring is finished.
At last, radial drilling machine drilling rod center (apex point) is aimed at this back, processed oblique cooling water hole center (sample dotting punch) locking.So, bore orientation, the location of the oblique cooling water hole of β=52 ° and all finish, all oblique cooling water holes of processing on this aspect of cylinder head of this batch only need rotating table, and the sample dotting punch that makes apex point aim at this center, processed hole gets final product.
The boring of α=15 ° inclined-plane cooling water hole directed and radially the boring orientation of cooling water hole (this hole can be regarded as be 90 ° special inclined hole) with cylinder head axial line angle do not give unnecessary details here with reference to method as mentioned above yet.
Undoubtedly, the foregoing description is the concrete application of a kind of inclined-plane boring directional orientation tool of the present invention, in fact this directional orientation tool is applicable to the direction centering before plain radial drilling machine is processed any oblique hole, only needs to mark near the plane this hole a school line transfer (direction line) consistent with this hole direction of axis line.
Claims (2)
1. boring directional orientation tool in an inclined-plane is characterized in that, comprises Mohs mandrel (01), transverse axis (02) on this tool construction, adjusts copper sheathing (03), to line plate (04), axle sleeve (05), roller (06) and shaft end ring (08):
Described Mohs mandrel (01) top is Morse taper shank, and the bottom is a fork, and two leaf homogeneous phases of fork are to having the transverse axis hole, and the axial line of Morse taper shank is vertical with described transverse axis hole axial line and crossing;
Described transverse axis (02) is through in the transverse axis hole on the Mohs mandrel (01), on the transverse axis (02) of fork inboard, be provided with and adjust copper sheathing (03) and line plate (04), described adjustment copper sheathing (03) is two, be distributed in described both sides, on the outside of fork transverse axis (03), be arranged with two rollers (06) line plate (04);
Described is the vertical reference face to the plane that is positioned at the select shaft (02) that blade portion divides on the line plate (04), the plane of parallel described transverse axis (02) is parallel datum level, the intersection of described vertical reference face and parallel datum level is an edge of a knife line, describedly can freely rotate in 180 ° of scopes at transverse axis (02) line plate (04);
The radius of described roller (06) equals the axial line of transverse axis (03) to the distance to the parallel datum level of line plate.
One kind utilize the described inclined-plane of claim 1 boring directional orientation tool to diesel engine cylinder head for ship cooling water hole boring predetermination to method, the axis angle of cooling water hole and cylinder head is α=15 ° on the diesel engine cylinder head for ship, β=52 ° is characterized in that this method comprises the steps:
The first step, determine the position of holing on the cylinder head on diesel engine cylinder head for ship, to mark cross hairs by the waist, the position of on cross hairs by the waist, marking each oblique cooling water hole again, the cooling water hole center position strikes sample and dashes;
Second goes on foot, cylinder head is fixed on the rig floor, and this rig floor has tiltable table top, and the angle of adjusting table top and horizontal plane is 52 °;
The 3rd step, mark the school line transfer, this school line transfer is drawn near the cylinder head plane the diesel engine cylinder head for ship cooling water hole, and is consistent at the projecting direction on cylinder head plane with the oblique cooling water hole axial line of lid;
The 4th step, boring directional orientation tool in inclined-plane is installed, under the drilling rod unlocked state of drilling machine, the Morse taper shank on Mohs mandrel (01) top is installed in the radial drilling machine drilling rod tapered hole;
The 5th step, the perpendicularity of cooling water hole on the verification cylinder head, the inclined-plane directional orientation tool of holing is moved near the line transfer of described school, the plane of stroke school line transfer on roller cylindrical tangent plane that common bus on the edge of a knife line of line plate (04) and two rollers (05) cylindrical is formed and the cylinder head is fitted tightly, check the depth of parallelism of school line transfer and edge of a knife line, mobile turntable and drilling rod overlap with edge of a knife line until the school line transfer, and it is directed to finish boring.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810039503A CN100594096C (en) | 2008-06-25 | 2008-06-25 | Inclined plane hole alignment tool and orientation method for drilling cooling water hole on cylinder cap |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810039503A CN100594096C (en) | 2008-06-25 | 2008-06-25 | Inclined plane hole alignment tool and orientation method for drilling cooling water hole on cylinder cap |
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| CN101318299A true CN101318299A (en) | 2008-12-10 |
| CN100594096C CN100594096C (en) | 2010-03-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109227974A (en) * | 2018-11-05 | 2019-01-18 | 成都大学 | A kind of processing unit (plant) of quartz shaped piece |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4580932A (en) * | 1984-02-21 | 1986-04-08 | Cogsdill Tool Products | Deburring tool |
| JPH037130Y2 (en) * | 1987-05-26 | 1991-02-22 | ||
| DE8715181U1 (en) * | 1987-10-17 | 1987-12-03 | Ledermann Gmbh + Co, 7240 Horb | Clamping device |
| US5054181A (en) * | 1990-05-08 | 1991-10-08 | Seiko Epson Corporation | Diagonal insertion apparatus |
| CN100450680C (en) * | 2006-10-25 | 2009-01-14 | 四川东风电机厂有限公司 | Gear driving type inclined vertical trephine and its using method |
| CN200970683Y (en) * | 2006-10-31 | 2007-11-07 | 洛阳Lyc轴承有限公司 | Fastener for conical handle milling cutter |
| JP4902316B2 (en) * | 2006-11-10 | 2012-03-21 | 東芝機械株式会社 | Posture assurance system for 5-axis machine for oblique machining |
| CN100534678C (en) * | 2007-09-19 | 2009-09-02 | 天津二十冶建设有限公司 | Processing method of blast furnace furnace jacket upper inclined hole |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109227974A (en) * | 2018-11-05 | 2019-01-18 | 成都大学 | A kind of processing unit (plant) of quartz shaped piece |
| CN109227974B (en) * | 2018-11-05 | 2023-03-24 | 成都大学 | Processing device for quartz special-shaped piece |
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