CN105397568A - Calculating method for turning tool center height error of lathe - Google Patents
Calculating method for turning tool center height error of lathe Download PDFInfo
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- CN105397568A CN105397568A CN201510978565.1A CN201510978565A CN105397568A CN 105397568 A CN105397568 A CN 105397568A CN 201510978565 A CN201510978565 A CN 201510978565A CN 105397568 A CN105397568 A CN 105397568A
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- lathe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
- B23Q17/2233—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work for adjusting the tool relative to the workpiece
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Abstract
The invention relates to a calculating method for a turning tool center height error of a lathe and belongs to the technical field of machining. According to the calculating method for the turning tool center height error of the lathe disclosed by the invention, involved parts comprise a workpiece 1 to be processed, a turning tool 2 for processing the workpiece 1, a tool holder 3 for fixing the turning tool 2 and a gasket 4 arranged in the tool holder 3. The calculating method for the turning tool center height error of the lathe comprises the following steps: 1, first calculation; 2, second calculation; 3, error calculation; and 4, regulation of the tool bit position. The calculating method can accurately detect the actual center height error of the tool after being installed on the lathe.
Description
Technical field
The present invention relates to Machining Technology field, be specifically related to the measuring method of a kind of Lathe turning tool center high level error.
Background technology
When lathe process mounting cutter, require that the pivot of the point of a knife of cutter head and workpiece is contour, the lathe tool center that Here it is often says is high.Lathe tool center height is incorrect will directly affect Workpiece Machining Accuracy, workpiece surface quality and cutter life.The error-detecting that center is high and adjustment particularly important.
In actual processing, center high level error measures difficulty.Authorization Notice No. is that the Chinese utility model patent of CN202087852U provides the high presetting cutter method in a kind of lathe tool center, but can only detect single cutter, the practical center high level error after cannot detecting on Cutting tool installation manner to lathe.
Summary of the invention
Object of the present invention, being to solve the problem, providing a kind of measuring method, accurately can detect the center high level error of the reality after on Cutting tool installation manner to lathe.
The technical scheme that the present invention solves the problem is as follows:
The measuring method of a kind of Lathe turning tool center high level error, the parts that the measuring method of described Lathe turning tool center high level error relates to comprise workpiece to be processed, process the lathe tool of described workpiece, fix the knife rest of described lathe tool and be positioned at the pad of described knife rest, comprise the steps:
1. first time measures: with the surface of described workpiece for plane, the vertical line intersection point that the pivot marking described workpiece is O, the actual point of point of a knife of described lathe tool is A1, the high correct point in the center of described lathe tool is B1, described some A1 and line segment OB1 is C1, the radius of described workpiece is R1, measures and records lathe coordinate value X1, R1;
2. second time is measured: changing radius is the workpiece of R2, described R2 is different from described R1 numerical value, with the surface of described workpiece for plane, the pivot of the described workpiece that mark is identical with described first time measuring process is O, the actual point of point of a knife of described lathe tool is A2, high correctly to put be B2, the vertical line intersection point of described some A2 and line segment OB2 is C2, the radius of described workpiece is R2 at the center of described lathe tool, measures and records lathe coordinate value X2, R2;
3. the error of calculation: list described first time measuring process and the Pythagorean theorem equivalent substitution formula of described second time measuring process, two equivalent substitution formulas are added, in conjunction with described first time measuring process and described second time measuring process measured by the numerical value of X1, R1, X2, R2, calculate the cutter head center high level error value H of described lathe tool;
4. cutter head position is adjusted: by the described pad changing suitable thickness, the pivot of the position of the cutter head of described lathe tool and described workpiece is on same level line.
Preferred as technique scheme, described step 3. relate in the error of calculation described step 1. first time measure and described step 2. the part measured of second time also can 1. first time measure and 2. described step is measured for the second time and carried out simultaneously with described step.
Preferred as technique scheme, described knife rest is provided with fastening bolt for fastening described lathe tool, makes described lathe tool and described pad close contact.
Preferred as technique scheme, the numerical value of described R1 is greater than the numerical value of described R2, and the difference of described R1 and described R2 is greater than 1/10 of described R1 numerical value.
Preferred as technique scheme, 4. described step adjusts after cutter head position completes, can repeat again step 1.-4. to reduce the center high level error of described cutter head further.
In sum, the present invention has following beneficial effect:
The measuring method of a kind of Lathe turning tool center of the present invention high level error accurately can detect the center high level error of the reality after on Cutting tool installation manner to lathe.
Accompanying drawing explanation
Fig. 1 is lathe tool, knife rest and workpiece relative position front view;
Fig. 2 is lathe tool, knife rest and workpiece relative position top view;
Fig. 3 is first time measuring process annotation point schematic diagram;
Fig. 4 is second time measuring process annotation point schematic diagram;
Fig. 5 is error of calculation schematic diagram.
In figure, 1-workpiece, 2-lathe tool, 3-knife rest, 31-fastening bolt, 4-pad.
Detailed description of the invention
Be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Embodiment in the present invention, those of ordinary skill in the art, not doing other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Below in conjunction with accompanying drawing, with embodiment, the present invention is described in detail.
Embodiment 1: with reference to figure 1-Fig. 4, the measuring method of a kind of Lathe turning tool center high level error, the parts that the measuring method of described Lathe turning tool center high level error relates to comprise workpiece 1 to be processed, process the lathe tool 2 of described workpiece 1, fix the knife rest 3 of described lathe tool 2 and be positioned at the pad 4 of described knife rest 3, comprise the steps:
1. first time measures: with the surface of described workpiece 1 for plane, the vertical line intersection point that the pivot marking described workpiece 1 is O, the actual point of point of a knife of described lathe tool 2 is A1, the high correct point in the center of described lathe tool (2) is B1, described some A1 and line segment OB1 is C1, the radius of described workpiece 1 is R1, measures and records lathe coordinate value X1, R1;
2. second time is measured: change the workpiece 1 that radius is R2, described R2 is different from described R1 numerical value, with the surface of described workpiece 1 for plane, the pivot of the described workpiece 1 that mark is identical with described first time measuring process is O, the actual point of point of a knife of described lathe tool 2 is A2, high correctly to put be B2, the vertical line intersection point of described some A2 and line segment OB2 is C2, the radius of described workpiece 1 is R2 at the center of described lathe tool 2, measures and records lathe coordinate value X2, R2;
3. the error of calculation: list described first time measuring process and the Pythagorean theorem equivalent substitution formula of described second time measuring process, two equivalent substitution formulas are added, in conjunction with described first time measuring process and described second time measuring process measured by the numerical value of X1, R1, X2, R2, calculate the cutter head center high level error value H of described lathe tool 2;
Be desirable position of tool tip point according to Fig. 5, B point, A point is actual position of tool tip point, high level error centered by AC.
AO=R, AC=H, OC are the half of machine coordinate values X, i.e. OC=X/2;
Obtain according to Pythagorean theorem:
First time measures:
OC1=X1/2，A1O=R1，A1C1=H
Equivalent substitution obtains
1.
Second time is measured:
OC2=X2/2，A2O=R2，A2C2=H
Equivalent substitution obtains
2.
More than comprehensive, 1.+2.:
Arrange:
R1, R2, X1, X2, for measuring or lathe reading gained, substitute into numerical value and can calculate H, the center high level error that H is actual after being lathe tool installation.
4. cutter head position is adjusted: by the described pad 4 changing suitable thickness, the position of the cutter head of described lathe tool 2 and the pivot of described workpiece 1 are on same level line.
Embodiment 2: with reference to figure 1-Fig. 4, the measuring method of a kind of Lathe turning tool center high level error, the parts that the measuring method of described Lathe turning tool center high level error relates to comprise workpiece 1 to be processed, process the lathe tool 2 of described workpiece 1, fix the knife rest 3 of described lathe tool 2 and be positioned at the pad 4 of described knife rest 3, comprise the steps:
1. first time measures: with the surface of described workpiece 1 for plane, the vertical line intersection point that the pivot marking described workpiece 1 is O, the actual point of point of a knife of described lathe tool 2 is A1, the high correct point in the center of described lathe tool (2) is B1, described some A1 and line segment OB1 is C1, the radius of described workpiece 1 is R1, measures and records lathe coordinate value X1, R1;
Be desirable position of tool tip point according to Fig. 5, B point, A point is actual position of tool tip point, high level error centered by AC.
AO=R, AC=H, OC are the half of machine coordinate values X, i.e. OC=X/2;
Obtain according to Pythagorean theorem:
First time measures:
OC1=X1/2，A1O=R1，A1C1=H
Equivalent substitution obtains
1.
2. second time is measured: change the workpiece 1 that radius is R2, described R2 is different from described R1 numerical value, with the surface of described workpiece 1 for plane, the pivot of the described workpiece 1 that mark is identical with described first time measuring process is O, the actual point of point of a knife of described lathe tool 2 is A2, high correctly to put be B2, the vertical line intersection point of described some A2 and line segment OB2 is C2, the radius of described workpiece 1 is R2 at the center of described lathe tool 2, measures and records lathe coordinate value X2, R2;
Be desirable position of tool tip point according to Fig. 5, B point, A point is actual position of tool tip point, high level error centered by AC.
AO=R, AC=H, OC are the half of machine coordinate values X, i.e. OC=X/2;
Obtain according to Pythagorean theorem:
Second time is measured:
OC2=X2/2，A2O=R2，A2C2=H
Equivalent substitution obtains
2.
3. the error of calculation: list described first time measuring process and the Pythagorean theorem equivalent substitution formula of described second time measuring process, two equivalent substitution formulas are added, in conjunction with described first time measuring process and described second time measuring process measured by the numerical value of X1, R1, X2, R2, calculate the cutter head center high level error value H of described lathe tool 2;
More than comprehensive, 1.+2.:
Arrange:
R1, R2, X1, X2, for measuring or lathe reading gained, substitute into numerical value and can calculate H, the center high level error that H is actual after being lathe tool installation.
4. cutter head position is adjusted: by the described pad 4 changing suitable thickness, the position of the cutter head of described lathe tool 2 and the pivot of described workpiece 1 are on same level line.
Embodiment 3: with reference to figure 1-Fig. 4, the measuring method of a kind of Lathe turning tool center high level error, the parts that the measuring method of described Lathe turning tool center high level error relates to comprise workpiece 1 to be processed, process the lathe tool 2 of described workpiece 1, fix the knife rest 3 of described lathe tool 2 and be positioned at the pad 4 of described knife rest 3, described knife rest 3 is provided with fastening bolt 31 for fastening described lathe tool 2, described lathe tool 2 is comprised the steps: with described pad 4 close contact
1. first time measures: with the surface of described workpiece 1 for plane, the vertical line intersection point that the pivot marking described workpiece 1 is O, the actual point of point of a knife of described lathe tool 2 is A1, the high correct point in the center of described lathe tool (2) is B1, described some A1 and line segment OB1 is C1, the radius of described workpiece 1 is R1, measures and records lathe coordinate value X1, R1;
2. second time is measured: change the workpiece 1 that radius is R2, the numerical value of described R2 is less than the numerical value of described R1, the difference of described R1 and described R2 is greater than 1/10 of described R1 numerical value, with the surface of described workpiece 1 for plane, the pivot of the described workpiece 1 that mark is identical with described first time measuring process is O, the actual point of point of a knife of described lathe tool 2 is A2, high correctly to put be B2, the vertical line intersection point of described some A2 and line segment OB2 is C2, the radius of described workpiece 1 is R2 at the center of described lathe tool 2, measures and records lathe coordinate value X2, R2;
3. the error of calculation: list described first time measuring process and the Pythagorean theorem equivalent substitution formula of described second time measuring process, two equivalent substitution formulas are added, in conjunction with described first time measuring process and described second time measuring process measured by the numerical value of X1, R1, X2, R2, calculate the cutter head center high level error value H of described lathe tool 2;
Be desirable position of tool tip point according to Fig. 5, B point, A point is actual position of tool tip point, high level error centered by AC.
AO=R, AC=H, OC are the half of machine coordinate values X, i.e. OC=X/2;
Obtain according to Pythagorean theorem:
First time measures:
OC1=X1/2，A1O=R1，A1C1=H
Equivalent substitution obtains
1.
Second time is measured:
OC2=X2/2，A2O=R2，A2C2=H
Equivalent substitution obtains
2.
More than comprehensive, 1.+2.:
Arrange:
R1, R2, X1, X2, for measuring or lathe reading gained, substitute into numerical value and can calculate H, the center high level error that H is actual after being lathe tool installation.
4. cutter head position is adjusted: make the position of the cutter head of described lathe tool 2 and the pivot of described workpiece 1 be on same level line by the described pad 4 changing suitable thickness;
5. duplicate measurements: repeat step 1.-4. to reduce the center high level error of the cutter head of described lathe tool 2 further.
Claims (5)
1. the measuring method of a Lathe turning tool center high level error, it is characterized in that: the parts that the measuring method of described Lathe turning tool center high level error relates to comprise workpiece (1) to be processed, process the lathe tool (2) of described workpiece (1), fix the knife rest (3) of described lathe tool (2) and be positioned at the pad (4) of described knife rest (3), comprise the steps:
1. first time measures: with the surface of described workpiece (1) for plane, the vertical line intersection point that the pivot marking described workpiece (1) is O, the actual point of point of a knife of described lathe tool (2) is A1, the high correct point in the center of described lathe tool (2) is B1, described some A1 and line segment OB1 is C1, the radius of described workpiece (1) is R1, measures and records lathe coordinate value X1, R1;
2. second time is measured: change the workpiece (1) that radius is R2, described R2 is different from described R1 numerical value, with the surface of described workpiece (1) for plane, the pivot of the described workpiece (1) that mark is identical with described first time measuring process is O, the actual point of point of a knife of described lathe tool (2) is A2, high correctly to put be B2, the vertical line intersection point of described some A2 and line segment OB2 is C2, the radius of described workpiece (1) is R2 at the center of described lathe tool (2), measures and records lathe coordinate value X2, R2;
3. the error of calculation: list described first time measuring process and the Pythagorean theorem equivalent substitution formula of described second time measuring process, two equivalent substitution formulas are added, in conjunction with described first time measuring process and described second time measuring process measured by the numerical value of X1, R1, X2, R2, calculate the cutter head center high level error value H of described lathe tool (2);
4. cutter head position is adjusted: by the described pad (4) changing suitable thickness, the pivot of the position of the cutter head of described lathe tool (2) and described workpiece (1) is on same level line.
2. the measuring method of a kind of Lathe turning tool center according to claim 1 high level error, is characterized in that: described step 3. relate in the error of calculation described step 1. first time measure and described step 2. the part measured of second time also can 1. first time measure and 2. described step is measured for the second time and carried out simultaneously with described step.
3. the measuring method of a kind of Lathe turning tool center according to claim 1 high level error, it is characterized in that: described knife rest (3) is provided with fastening bolt (31) for fastening described lathe tool (2), make described lathe tool (2) and described pad (4) close contact.
4. the measuring method of a kind of Lathe turning tool center according to claim 1 high level error, is characterized in that: the numerical value of described R1 is greater than the numerical value of described R2, and the difference of described R1 and described R2 is greater than 1/10 of described R1 numerical value.
5. the measuring method of a kind of Lathe turning tool center according to claim 1 high level error, is characterized in that: 4. described step adjusts after cutter head position completes, can repeat again step 1.-4. to reduce the center high level error of the cutter head of described lathe tool (2) further.
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Cited By (1)
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| CN109249041A (en) * | 2018-11-23 | 2019-01-22 | 宝鸡文理学院 | A kind of high-speed cutting processing device |
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Application publication date: 20160316 |