CN117704935A - Method for checking opposite precision of opposite numerical control floor type milling and boring machine - Google Patents
Method for checking opposite precision of opposite numerical control floor type milling and boring machine Download PDFInfo
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Abstract
A method for checking the opposite precision of an opposite numerical control floor type boring and milling machine. The method mainly solves the problem that the existing opposite precision inspection method of the opposite numerical control floor type boring and milling machine is not uniform, so that the inspection result is unreliable. The method is characterized in that: firstly, detecting coaxiality of rotation axes of the two main shafts, wherein the detection results are qualified when the deformation of each 1000mm is smaller than 0.05 mm; secondly, detecting the moving parallelism of the two vertical columns, wherein the deformation of each 2000mm of the detection result is smaller than 0.05 mm; detecting the moving parallelism of the two spindle boxes, wherein the deformation of each 2000mm of the detection result is smaller than 0.06 mm; and fourthly, detecting the perpendicularity of the movement of the spindle box relative to the movement of the opposite side upright post, wherein the deformation of each 2000mm is smaller than 0.06mm as a result of detection. The method can realize the inspection of the opposite precision of the numerical control opposite milling and boring machine, so that scientific installation and adjustment methods are appointed, and the installation and adjustment efficiency of equipment is improved.
Description
Technical Field
The invention relates to the field of machine tools, in particular to a method for checking the opposite precision of an opposite numerical control floor type milling and boring machine.
Background
At present, the requirement of the opposite precision of the opposite numerical control floor milling and boring machine does not have corresponding national inspection standards, and the field is blank, so that the qualification is calculated without knowing what should be inspected and how to inspect, and the adjustment and inspection of the opposite precision of the opposite numerical control floor milling and boring machine cannot be guided. Because no systematic inspection method and quantitative numerical value are used as the basis, the opposite boring precision cannot be ensured, and the workpiece machining precision specified by a user is often met, the inspection method is not uniform, the inspection means is single, the inspection result has certain contingency, and the opposite precision inspection requirement of the opposite numerical control floor type milling and boring machine cannot be met. Meanwhile, the whole machine is not theoretically supported in adjustment, the direction adjustment mode is ambiguous, certain blindness exists, and the opposite precision of the whole machine cannot be effectively ensured.
Disclosure of Invention
In order to overcome the defect that the existing opposite precision inspection method of the opposite numerical control floor type milling and boring machine is not uniform and leads to unreliable inspection results, the invention provides the inspection method of the opposite precision of the opposite numerical control floor type milling and boring machine, which can realize the inspection of the opposite precision of the numerical control opposite milling and boring machine, thereby specifying scientific installation and adjustment methods and improving the installation and adjustment efficiency of equipment.
The technical scheme of the invention is as follows: a method for checking the opposite precision of an opposite numerical control floor type boring and milling machine comprises the following steps:
firstly, detecting coaxiality of the rotation axes of the two main shafts,
(a) Detecting by taking the ZY vertical plane as a reference plane;
(b) Detecting by taking a ZX horizontal plane as a reference plane;
(c) Calculating errors in the steps (a) and (b) respectively, wherein the errors are calculated by the maximum algebraic difference value of four times of inspection, and the detection results are qualified when the deformation amount of each 1000mm is smaller than 0.05 mm;
secondly, detecting the moving parallelism of the two vertical posts,
placing a checking fixture on the workbench surface along the moving direction of the upright post, and locking the two spindle boxes at one third of the position of the upright post;
fixing the indicator on the first boring shaft, enabling the measuring head to touch one inspection surface of the inspection tool, moving the second upright post, and adjusting the inspection tool to enable the readings of the indicator to be equal at two ends of the inspection tool;
fixing an indicator on the second boring shaft to enable the measuring head to touch the other testing surface of the testing tool along the horizontal plane, and equidistantly moving the first upright post for testing;
the error is calculated by the maximum difference value of the readings of the indicator, and the deformation of each 2000mm is less than 0.05 mm;
detecting the moving parallelism of the two main shaft boxes,
(a) Detecting by taking the ZY vertical plane as a reference plane;
(b) Detecting by taking a ZX horizontal plane as a reference plane;
(c) Calculating errors in the steps (a) and (b) respectively, wherein the errors are calculated according to the maximum difference value of the readings of the indicator, and the detection result is qualified when the deformation amount per 2000mm is smaller than 0.06 mm;
detecting the perpendicularity of the movement of the main shaft box relative to the movement of the opposite side upright post,
(a) Detecting the perpendicularity of the movement of the first spindle box relative to the movement of the second upright post;
(b) Detecting the perpendicularity of the movement of the second spindle box relative to the movement of the first upright post;
(c) And the error is calculated by the maximum difference value of the indicator reading, and the detection result is qualified when the deformation amount per 2000mm is smaller than 0.06 mm.
Before the coaxiality of the rotation axes of the two spindles is detected, one of the spindles extends out of the spindle box, and the workbench is adjusted to be horizontal by taking the spindle as a reference.
Further, the detecting step using the ZY vertical plane in the step (one) as the reference plane includes:
(1) the flat ruler inspection surface is arranged on the worktable along the ZX horizontal plane and parallel to the axis direction of the boring shaft, and the indicator is fixed on the sliding block, so that the measuring head touches the lower side of the inspection rod; the sliding block is translated, and the flat ruler is adjusted to be parallel to the checking rod;
(2) the indicator gauge head is enabled to touch the lower surface of the other side inspection rod, and the sliding block is translated for inspection. And rotating the checking rod to 90 DEG, 180 DEG and 270 DEG for repeated checking.
Further, the detecting step using the ZX horizontal plane in the step (one) as a reference plane includes:
(1) the flat ruler test surface is perpendicular to the ZX horizontal surface and is arranged on the workbench surface, and the indicator is fixed on the sliding block, so that the measuring head touches the side surface of the test rod; the sliding block is translated, and the flat ruler is adjusted to be parallel to the checking rod;
(2) the indicator measuring head is enabled to touch the side face of the checking rod at the other side, and the sliding block is translated for checking. And rotating the checking rod to 90 DEG, 180 DEG and 270 DEG for repeated checking.
Further, in the step (iii), the detecting step using the ZY vertical plane as a reference plane includes: fixing an indicator on the first main shaft box, enabling a measuring head of the indicator to touch a test surface of the square along an XY vertical plane, moving the first main shaft box, and adjusting the square so that the readings of the indicator are equal at two ends of the square;
and fixing an indicator on the second spindle box, so that the measuring head contacts the other inspection surface of the square angle ruler along the XY vertical plane, and moving the second spindle box equidistantly for inspection.
Further, in the step (three), the detecting step using the ZX horizontal plane as a reference plane comprises the following steps: fixing an indicator on the first main shaft box, enabling a measuring head of the indicator to touch a test surface of the square along a YZ vertical plane, moving the first main shaft box, and adjusting the square to enable the readings of the indicator to be equal at two ends of the square;
and fixing an indicator on the second main spindle box, so that the measuring head contacts the other inspection surface of the square angle ruler along the YZ vertical plane, and moving the second main spindle box equidistantly for inspection.
In the step (IV), the two main shaft boxes are firstly placed at the 1/3 position of the stroke of the upright posts from bottom to top, and the detection tool is placed on the workbench.
Further, in the step (four) (a): fixing an indicator on the first spindle box, enabling a measuring head of the first spindle box to touch a detection surface of the detection tool, and moving the second upright post to enable the readings of the indicator to be equal at two ends of the detection tool;
and placing an angle square on the gauge, fixing the indicator on the first spindle box, enabling the measuring head to touch the angle square testing surface, and moving the first spindle box for testing.
Further, in the step (four) (b): fixing an indicator on the second spindle box, enabling a measuring head of the second spindle box to touch a detection surface of the detection tool, and moving the first upright column to enable the readings of the indicator to be equal at two ends of the detection tool;
and placing an angle square on the gauge, fixing the indicator on the second spindle box, enabling the measuring head to touch the angle square testing surface, and moving the second spindle box for testing.
The invention has the following beneficial effects: by adopting the scheme, the method for testing the opposite precision of the opposite numerical control floor milling and boring machine is scientifically formulated by referring to the national test standard of the single numerical control floor milling and boring machine and analyzing the precision condition of the past opposite numerical control floor milling and boring machine. The method is scientific and reasonable, and has the corresponding numerical value as a basis, so that the installation and adjustment of equipment can be effectively guided, the production efficiency is improved, and the cost is saved. The method is used as a basis for precision inspection and acceptance of the opposite numerical control floor type boring and milling machine, solves the problem that the opposite precision of equipment acceptance can only meet the workpiece processing requirement by adopting user specification, and has the advantages of definite inspection method and mode, strong operability and great convenience for equipment acceptance.
Drawings
Fig. 1 and 2 are schematic diagrams of coaxiality detection of two main shaft rotation axes by taking a ZY vertical plane as a reference plane;
fig. 3 and 4 are schematic diagrams of coaxiality detection of two main shaft rotation axes by taking a ZX horizontal plane as a reference plane;
FIG. 5 is a schematic illustration of two column movement parallelism detection;
FIG. 6 is a schematic diagram of the detection of the parallelism of the movement of the two headstocks;
fig. 7 and 8 are schematic views of the detection of the perpendicularity of the headstock movement relative to the opposite side column movement.
Description of the embodiments
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1 to 4, a method for checking the accuracy of the opposite numerical control floor-type boring and milling machine includes the following steps:
one of the spindles is first extended out of the spindle box, the level of the workbench is adjusted with the spindle as a reference, and then the following detection is performed.
Firstly, detecting coaxiality of the rotation axes of the two main shafts,
(a) Detecting by taking the ZY vertical plane as a reference plane:
(1) the flat ruler test surface is arranged on the worktable along the ZX horizontal plane and parallel to the axis direction of the boring shaft, the test rod is fixed at the front end of the main shaft, and the indicator is fixed on the sliding block, so that the measuring head touches the lower side of the test rod; translating the slider to adjust the flat rule parallel to the test rod, see FIG. 1;
(2) the indicator measuring head is enabled to touch the lower surface of the checking rod on the main shaft on the other side, and the sliding block is translated for checking. The inspection bar is rotated to the positions of 90 degrees, 180 degrees and 270 degrees for repeated inspection in sequence, as shown in fig. 2.
(b) Detecting by taking a ZX horizontal plane as a reference plane:
(1) the flat ruler test surface is perpendicular to the ZX horizontal surface and is arranged on the workbench surface, and the indicator is fixed on the sliding block, so that the measuring head touches the side surface of the test rod on one main shaft; translating the slider to adjust the flat rule parallel to the test rod, see FIG. 3;
(2) the indicator measuring head is enabled to touch the side face of the checking rod on the main shaft on the other side, and the sliding block is translated for checking. The inspection bar is rotated to the positions of 90 degrees, 180 degrees and 270 degrees for repeated inspection in sequence, as shown in fig. 4.
(c) And (c) respectively calculating errors in the steps (a) and (b), wherein the errors are calculated according to the maximum algebraic difference value of four times of tests, and the detection results are respectively qualified that the deformation amount per 1000mm is smaller than 0.05 mm.
And (II) detecting the moving parallelism of the two vertical posts, see figure 5,
placing a checking fixture on the workbench surface along the moving direction of the upright post, and locking the two spindle boxes at one third of the position of the upright post;
fixing the indicator on the first boring shaft, enabling the measuring head to touch one inspection surface of the inspection tool, moving the second upright post, and adjusting the inspection tool to enable the readings of the indicator to be equal at two ends of the inspection tool;
fixing an indicator on the second boring shaft to enable the measuring head to touch the other testing surface of the testing tool along the horizontal plane, and equidistantly moving the first upright post for testing;
the error is calculated by the maximum difference value of the readings of the indicator, and the deformation of each 2000mm is less than 0.05 mm;
and (III) detecting the moving parallelism of the two main shaft boxes, see figure 6,
(a) Detecting by taking the ZY vertical plane as a reference plane:
fixing an indicator on the first main shaft box, enabling a measuring head of the indicator to touch a test surface of the square along an XY vertical plane, moving the first main shaft box, and adjusting the square so that the readings of the indicator are equal at two ends of the square;
and fixing an indicator on the second spindle box, so that the measuring head contacts the other inspection surface of the square angle ruler along the XY vertical plane, and moving the second spindle box equidistantly for inspection.
(b) Detecting by taking a ZX horizontal plane as a reference plane:
fixing an indicator on the first main shaft box, enabling a measuring head of the indicator to touch a test surface of the square along a YZ vertical plane, moving the first main shaft box, and adjusting the square to enable the readings of the indicator to be equal at two ends of the square;
and fixing an indicator on the second main spindle box, so that the measuring head contacts the other inspection surface of the square angle ruler along the YZ vertical plane, and moving the second main spindle box equidistantly for inspection.
(c) And (3) respectively calculating errors in the steps (a) and (b), wherein the errors are calculated according to the maximum difference value of the readings of the indicator, and the detection result is qualified when the deformation amount per 2000mm is smaller than 0.06 mm.
And fourthly, detecting the perpendicularity of the movement of the main shaft box relative to the movement of the opposite side upright post, firstly placing the two main shaft boxes at 1/3 position of the travel of the upright post from bottom to top, and placing a detection tool on the workbench.
(a) And detecting the perpendicularity of the movement of the first spindle box relative to the movement of the second upright post: fixing an indicator on the first spindle box, enabling a measuring head of the first spindle box to touch a detection surface of the detection tool, and moving the second upright post to enable the readings of the indicator to be equal at two ends of the detection tool;
the angle square is placed on the gauge, the indicator is fixed on the first spindle box, the gauge head of the indicator touches the inspection surface of the angle square, and the first spindle box is moved for inspection, see fig. 7 and 8.
(b) And detecting the perpendicularity of the movement of the second spindle box relative to the movement of the first upright post: fixing an indicator on the second spindle box, enabling a measuring head of the second spindle box to touch a detection surface of the detection tool, and moving the first upright column to enable the readings of the indicator to be equal at two ends of the detection tool;
and placing an angle square on the gauge, fixing the indicator on the second spindle box, enabling the measuring head to touch the angle square testing surface, and moving the second spindle box for testing.
(c) And the error is calculated by the maximum difference value of the indicator reading, and the detection result is qualified when the deformation amount per 2000mm is smaller than 0.06 mm.
According to the method, the accuracy control of the opposite numerical control floor milling and boring machine is realized through the detection of 4 large detection items and a plurality of small detection items in each item, the accuracy detection and detection are practical, the accuracy value is obtained through the analysis of the national similar standard and the opposite accuracy of the past opposite numerical control floor milling and boring machine, the value is scientific and reasonable, and the opposite accuracy requirement of the opposite numerical control floor milling and boring machine can be met through the detection of the items. The inspection method can effectively guide the installation and adjustment of equipment, and can assign a scientific and reasonable installation and adjustment method according to the inspection standard, and scientifically control the precision of related installation links, so that the opposite precision of the whole machine is ensured.
Claims (9)
1. The method for checking the opposite precision of the opposite numerical control floor type milling and boring machine is characterized by comprising the following steps of:
firstly, detecting coaxiality of the rotation axes of the two main shafts,
(a) Detecting by taking the ZY vertical plane as a reference plane;
(b) Detecting by taking a ZX horizontal plane as a reference plane;
(c) Calculating errors in the steps (a) and (b) respectively, wherein the errors are calculated by the maximum algebraic difference value of four times of inspection, and the detection results are qualified when the deformation amount of each 1000mm is smaller than 0.05 mm;
secondly, detecting the moving parallelism of the two vertical posts,
placing a checking fixture on the workbench surface along the moving direction of the upright post, and locking the two spindle boxes at one third of the position of the upright post;
fixing the indicator on the first boring shaft, enabling the measuring head to touch one inspection surface of the inspection tool, moving the second upright post, and adjusting the inspection tool to enable the readings of the indicator to be equal at two ends of the inspection tool;
fixing an indicator on the second boring shaft to enable the measuring head to touch the other testing surface of the testing tool along the horizontal plane, and equidistantly moving the first upright post for testing;
the error is calculated by the maximum difference value of the readings of the indicator, and the deformation of each 2000mm of the detection result is less than 0.05 mm;
detecting the moving parallelism of the two main shaft boxes,
(a) Detecting by taking the ZY vertical plane as a reference plane;
(b) Detecting by taking a ZX horizontal plane as a reference plane;
(c) Calculating errors in the steps (a) and (b) respectively, wherein the errors are calculated according to the maximum difference value of the readings of the indicator, and the detection result is qualified when the deformation amount per 2000mm is smaller than 0.06 mm;
detecting the perpendicularity of the movement of the main shaft box relative to the movement of the opposite side upright post,
(a) Detecting the perpendicularity of the movement of the first spindle box relative to the movement of the second upright post;
(b) Detecting the perpendicularity of the movement of the second spindle box relative to the movement of the first upright post;
(c) And the error is calculated by the maximum difference value of the indicator reading, and the detection result is qualified when the deformation amount per 2000mm is smaller than 0.06 mm.
2. The method for checking the relative accuracy of the opposite numerical control floor-type boring and milling machine according to claim 1, wherein the method comprises the following steps: before coaxiality detection of the rotation axes of the two main shafts, one main shaft extends out of the main shaft box, and the level of the workbench is adjusted by taking the main shaft as a reference.
3. The method for checking the relative accuracy of the opposite numerical control floor-type boring and milling machine according to claim 2, wherein the method comprises the following steps: the detection step of taking the ZY vertical surface as the reference surface in the step (one) comprises the following steps:
(1) the flat ruler inspection surface is arranged on the worktable along the ZX horizontal plane and parallel to the axis direction of the boring shaft, and the indicator is fixed on the sliding block, so that the measuring head touches the lower side of the inspection rod; the sliding block is translated, and the flat ruler is adjusted to be parallel to the checking rod;
(2) the indicator gauge head is enabled to touch the lower surface of the other side inspection rod, and the sliding block is translated for inspection. And rotating the checking rod to 90 DEG, 180 DEG and 270 DEG for repeated checking.
4. The method for checking the relative accuracy of the opposite numerical control floor-type boring and milling machine according to claim 3, wherein the method comprises the following steps: the detection step of taking the ZX horizontal plane in the step (one) as a reference plane comprises the following steps of:
(1) the flat ruler test surface is perpendicular to the ZX horizontal surface and is arranged on the workbench surface, and the indicator is fixed on the sliding block, so that the measuring head touches the side surface of the test rod; the sliding block is translated, and the flat ruler is adjusted to be parallel to the checking rod;
(2) the indicator measuring head is enabled to touch the side face of the checking rod at the other side, and the sliding block is translated for checking. And rotating the checking rod to 90 DEG, 180 DEG and 270 DEG for repeated checking.
5. The method for checking the relative accuracy of the opposite numerical control floor-type boring and milling machine according to claim 4, wherein the method comprises the following steps: in the step (III), the detection step using the ZY vertical plane as a reference plane comprises the following steps: fixing an indicator on the first main shaft box, enabling a measuring head of the indicator to touch a test surface of the square along an XY vertical plane, moving the first main shaft box, and adjusting the square so that the readings of the indicator are equal at two ends of the square;
and fixing an indicator on the second spindle box, so that the measuring head contacts the other inspection surface of the square angle ruler along the XY vertical plane, and moving the second spindle box equidistantly for inspection.
6. The method for checking the relative accuracy of the opposite numerical control floor-type boring and milling machine according to claim 5, wherein the method comprises the following steps: in the step (III), the detection step taking the ZX horizontal plane as a reference plane comprises the following steps: fixing an indicator on the first main shaft box, enabling a measuring head of the indicator to touch a test surface of the square along a YZ vertical plane, moving the first main shaft box, and adjusting the square to enable the readings of the indicator to be equal at two ends of the square;
and fixing an indicator on the second main spindle box, so that the measuring head contacts the other inspection surface of the square angle ruler along the YZ vertical plane, and moving the second main spindle box equidistantly for inspection.
7. The method for checking the relative accuracy of the opposite numerical control floor-type boring and milling machine according to claim 6, wherein the method comprises the following steps: in the step (IV), the two main shaft boxes are firstly placed at the 1/3 position of the stroke of the upright posts from bottom to top, and the checking fixture is placed on the workbench.
8. The method for checking the relative accuracy of the opposite numerical control floor-type boring and milling machine according to claim 7, wherein the method comprises the following steps: in the step (four), the following (a): fixing an indicator on the first spindle box, enabling a measuring head of the first spindle box to touch a detection surface of the detection tool, and moving the second upright post to enable the readings of the indicator to be equal at two ends of the detection tool;
and placing an angle square on the gauge, fixing the indicator on the first spindle box, enabling the measuring head to touch the angle square testing surface, and moving the first spindle box for testing.
9. The method for checking the relative accuracy of the opposite numerical control floor-type boring and milling machine according to claim 8, wherein the method comprises the following steps: in the step (four) (b): fixing an indicator on the second spindle box, enabling a measuring head of the second spindle box to touch a detection surface of the detection tool, and moving the first upright column to enable the readings of the indicator to be equal at two ends of the detection tool;
and placing an angle square on the gauge, fixing the indicator on the second spindle box, enabling the measuring head to touch the angle square testing surface, and moving the second spindle box for testing.
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| CN202311733223.4A CN117704935A (en) | 2023-12-18 | 2023-12-18 | Method for checking opposite precision of opposite numerical control floor type milling and boring machine |
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| CN202311733223.4A CN117704935A (en) | 2023-12-18 | 2023-12-18 | Method for checking opposite precision of opposite numerical control floor type milling and boring machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118023564A (en) * | 2024-04-12 | 2024-05-14 | 济南二机床集团有限公司 | Central-positioned symmetrical double-sided milling and boring machining center of main milling head |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118023564A (en) * | 2024-04-12 | 2024-05-14 | 济南二机床集团有限公司 | Central-positioned symmetrical double-sided milling and boring machining center of main milling head |
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