CN112504095A - Method for detecting parallelism of ram movement of eccentric tool rest on rotary axis of workbench - Google Patents
Method for detecting parallelism of ram movement of eccentric tool rest on rotary axis of workbench Download PDFInfo
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- CN112504095A CN112504095A CN202011574393.9A CN202011574393A CN112504095A CN 112504095 A CN112504095 A CN 112504095A CN 202011574393 A CN202011574393 A CN 202011574393A CN 112504095 A CN112504095 A CN 112504095A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/25—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B5/252—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
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Abstract
The invention discloses a method for detecting the parallelism of a ram of an eccentric tool rest on a rotary axis of a workbench, belonging to the technical field of machine tool precision detection. The special measuring and checking tool comprises a flat ruler, a micrometer, a checking flat plate, an auxiliary adjusting device and a square ruler, wherein the micrometer placed on the flat ruler is used for detecting that a tool rest on a machine tool beam meets the requirement of the parallelism of a rotary working table when moving; secondly, detecting the parallelism of the inspection flat plate in the X-axis direction and the parallelism of the inspection flat plate in the C-axis direction by using dial indicators arranged on the inspection flat plate and the auxiliary adjusting device, wherein the inspection flat plate is arranged above the auxiliary adjusting device; the two-time parallelism adjustment is used for meeting the requirement of the precision detection of the parallelism of the rotation axis of the rotary table when the ram moves in a plane vertical to the cross beam and a plane parallel to the cross beam. The invention has strong operability and high detection precision, and provides reliable guarantee measures for the installation precision of the machine tool product with the structure.
Description
Technical Field
The invention relates to a method for detecting the parallelism of a ram of an eccentric tool rest on a rotary axis of a workbench, belonging to the technical field of machine tool precision detection.
Background
With the continuous development of the ocean wind power industry, a special processing machine tool for a large megawatt wind power variable pitch yaw bearing ring is correspondingly developed, the special processing machine tool is mainly used for processing a rotary annular workpiece, and a tool rest does not need to move to the rotary center of a workbench, so that the problem is that the rotary axis of the tool rest and the rotary axis of the workbench have a large eccentric distance but no center, and at the moment, when a tool rest ram of the machine tool moves in a plane perpendicular to a cross beam and in a plane parallel to the cross beam, the parallelism of the rotary axis of the workbench is difficult to check.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a method for detecting the parallelism of the ram movement of an eccentric tool rest on the rotating axis of a workbench, which is suitable for a machine tool structure with the rotating axis of the tool rest and the rotating axis of the workbench having a large eccentric distance and not exceeding the center, or suitable for the precision detection of machine tool products with similar structural functions, and has strong operability and high detection precision, thereby providing a reliable guarantee measure for the installation precision of the machine tool products with the structure.
The technical scheme adopted by the invention for solving the technical problems is as follows: a method for detecting the parallelism of the axis of rotation of a workbench by the movement of a ram of an eccentric tool rest is used for detecting the parallelism of the axis of rotation of the workbench in a plane perpendicular to a cross beam and a plane parallel to the cross beam when a tool rest and the ram of a machine tool move, a professional measuring and checking tool is adopted, the measuring and checking tool comprises a flat ruler, a micrometer, a checking flat plate, an auxiliary adjusting device and a square ruler, and the requirement of the parallelism of the workbench is met when the tool rest on the cross beam of the machine tool moves by firstly using the micrometer placed on the flat ruler to detect the tool rest on the cross beam of the machine tool; secondly, detecting the parallelism of the inspection flat plate in the X-axis direction and the parallelism of the inspection flat plate in the C-axis direction by using dial indicators arranged on the inspection flat plate and the auxiliary adjusting device, wherein the inspection flat plate is arranged above the auxiliary adjusting device; the two-time parallelism adjustment is used for meeting the requirement of the precision detection of the parallelism of the rotation axis of the rotary table when the ram moves in a plane vertical to the cross beam and a plane parallel to the cross beam.
A method for detecting the parallelism of the ram movement of an eccentric tool rest on the rotating axis of a workbench comprises the following steps:
(a) a leveling ruler in the horizontal direction is installed on the plane of the rotary working table, and a micrometer is used for detecting and adjusting the tool rest which does linear motion and can meet the requirement on the parallelism of the rotary working table when moving along the X-axis direction of a horizontal shaft;
(b) placing a detection flat plate and an auxiliary adjusting device on the plane of the rotary worktable within the stroke range of the tool rest which makes linear motion along the X-axis direction of the horizontal shaft;
(c) the movable tool rest moves linearly along the X-axis direction of the horizontal shaft, a dial indicator is used for detecting whether the parallelism of the test flat plate in the X-axis direction meets the requirement, and if the parallelism does not meet the requirement, an auxiliary adjusting device can be used for adjusting;
(d) moving a rotating motion shaft C shaft of the rotating workbench, detecting whether the parallelism of the test flat plate in the rotating direction of the shaft C meets the requirement by using a dial indicator, and if the parallelism of the test flat plate in the rotating direction of the shaft C does not meet the requirement, adjusting by using an auxiliary adjusting device;
(e) taking the upper plane of the inspection flat plate as a reference, placing a square ruler in a plane perpendicular to the cross beam, and detecting whether the parallelism of the ram to the rotation axis of the rotary worktable meets the requirement when the ram moves by using a dial gauge;
(f) taking the upper plane of the inspection flat plate as a reference, placing a square ruler in a plane parallel to the cross beam, and detecting whether the parallelism of the ram to the rotation axis of the rotary worktable meets the requirement when the ram moves by using a dial gauge;
(g) and after the detection is qualified, the machine tool can detect other items.
The inspection flat plate is a square plate body, the auxiliary adjusting device is a screw jack, and the auxiliary adjusting device below can adjust the parallelism of the inspection flat plate above the screw jack.
A horizontal screw rod device is arranged in a cross beam of the machine tool, a tool rest is meshed with the screw rod, and the motor drives the screw rod to rotate so as to drive the tool rest to horizontally move on the screw rod; the ram is arranged on the tool rest, the tool rest drives the ram to move horizontally together, and the ram is driven by the screw rod device in the tool rest in the vertical direction to move in the vertical direction. Because the stroke of the lead screw in the horizontal direction in the cross beam is limited, the rotary axis of the tool rest does not pass through the rotary axis of the rotary worktable, so that the tool rest becomes an eccentric tool rest and generates a large eccentric distance, and therefore, the reference is transferred to the inspection flat plate and the square, and the parallelism of the ram to the rotary worktable is detected on the basis; before the final purpose is achieved, the tool rest can meet the requirement on the parallelism of the rotary worktable when moving along the X-axis direction of the horizontal shaft, and then the inspection flat plate is used as a transition reference to be adjusted by using an auxiliary adjusting device so as to meet the requirement on the parallelism in the X-axis and C-axis directions and lay a foundation for the final purpose of meeting the requirement on the parallelism of the rotary axis of the rotary worktable when detecting the movement of the ram; after the flat plate is leveled, a square ruler is placed on the plane of the flat plate to serve as a detection reference, and a micrometer is used for detecting the parallelism of the rotary axis of the rotary worktable when the ram moves in a plane perpendicular to the cross beam and a plane parallel to the cross beam.
The method combines the X axis of the horizontal axis of the linear motion of the machine tool and the C axis of the rotary motion axis, and converts the rotary axis datum of the rotary worktable to the detection datum plane of the square by using the detection principle of translation and conversion of the detection datum so as to achieve the final detection purpose.
The invention has the beneficial effects that: the invention solves the problem that the parallelism precision of the rotary axis of the workbench cannot be detected when the tool rest ram moves in the plane vertical to the beam and in the plane parallel to the beam in the detection process of the machine tool, the detection technology has strong operability and high detection precision, and provides reliable guarantee measures for the installation precision of the machine tool product with the structure.
Drawings
The invention is further described with reference to the following figures and detailed description.
FIG. 1 is a schematic view of the present invention for detecting parallelism of a tool post with respect to a table surface of a rotary table while the tool post is moved in an X-axis direction along a horizontal axis.
FIG. 2 is a schematic diagram of the present invention for detecting the parallelism of the test plate in the X-axis direction and the C-axis direction.
Fig. 3 is a schematic view of fig. 2 in the direction of a.
FIG. 4 is a schematic view of the invention detecting parallelism to the axis of rotation of a rotary table as the carriage and ram move in a plane perpendicular to the beam.
FIG. 5 is a schematic view of the invention detecting parallelism of the axis of rotation of a rotary table during movement of the carriage slide and bolster in a plane parallel to the beam.
Reference numbers in the figures:
1. the device comprises a rotary workbench, 2, a flat ruler, 3, a micrometer, 4, a tool rest, 5, a ram, 6, a cross beam, 7, a detection flat plate, 8, an auxiliary adjusting device, 9 and a square ruler.
Detailed Description
As shown in fig. 1-5, a method for detecting parallelism of a ram movement of an eccentric tool rest on a rotation axis of a workbench is used for detecting parallelism of a rotation axis of the workbench 1 when the tool rest 4 and the ram 5 of a machine tool move in a plane perpendicular to a cross beam 6 and a plane parallel to the cross beam 6, a professional measurement and inspection tool is adopted, the special measurement and inspection tool comprises a flat ruler 2, a micrometer 3, an inspection flat plate 7, an auxiliary adjusting device 8 and a square ruler 9, and firstly, the micrometer 3 placed on the flat ruler 2 is used for detecting that the tool rest 4 on the cross beam 6 of the machine tool meets the requirement of the parallelism of the rotation workbench 1 when the tool rest 4 moves; secondly, detecting the parallelism of the inspection flat plate 7 in the X-axis direction and the parallelism of the inspection flat plate 7 in the C-axis direction by using a dial indicator 3 arranged on the inspection flat plate 7 and the auxiliary adjusting device 8, wherein the inspection flat plate 7 is arranged above the auxiliary adjusting device 8; the two parallelism adjustments are based on the accuracy of the parallelism of the axis of rotation of the rotary table 1 when the ram 5 is moved in a plane perpendicular to the beam 6 and in a plane parallel to the beam 6.
A method for detecting the parallelism of the ram movement of an eccentric tool rest on the rotating axis of a workbench comprises the following steps:
(a) a leveling ruler 2 in the horizontal direction is arranged on the plane of the rotary worktable 1, and a micrometer 3 is used for detecting and adjusting a tool rest 4 which does linear motion and can meet the requirement on the parallelism of the rotary worktable 1 when moving along the X-axis direction of a horizontal shaft;
(b) placing a detection flat plate 7 and an auxiliary adjusting device 8 on the plane of the rotary worktable 1 in the stroke range of the tool rest 4 which makes linear motion along the X-axis direction of the horizontal shaft;
(c) the movable tool rest 4 makes linear motion along the X-axis direction of the horizontal shaft, a dial indicator 3 is used for detecting whether the parallelism of the inspection flat plate 7 in the X-axis direction meets the requirement, and if the parallelism does not meet the requirement, an auxiliary adjusting device 8 can be used for adjusting;
(d) moving a rotating motion axis C of the rotating workbench 1, detecting whether the parallelism of the inspection flat plate 7 in the rotating direction of the axis C meets the requirement by using a dial indicator 3, and if the parallelism does not meet the requirement, adjusting by using an auxiliary adjusting device 8;
(e) taking the upper plane of the inspection flat plate 7 as a reference, placing a square 9 in a plane vertical to the cross beam 6, and detecting whether the parallelism of the ram 5 to the rotation axis of the rotary worktable 1 meets the requirement when moving by using a dial indicator 3;
(f) taking the upper plane of the inspection flat plate 7 as a reference, placing a square 9 in a plane parallel to the cross beam 6, and detecting whether the parallelism of the ram 5 to the rotation axis of the rotary worktable 1 meets the requirement when moving by using a dial indicator 3;
(g) and after the detection is qualified, the machine tool can detect other items.
The inspection flat plate 7 is a square plate body, the auxiliary adjusting device 8 is a screw jack, and the auxiliary adjusting device 8 below can adjust the parallelism of the inspection flat plate 7 above the screw jack.
A horizontal screw rod device is arranged in a cross beam 6 of the machine tool, a tool rest 4 is meshed with the screw rod, and the motor drives the screw rod to rotate so as to drive the tool rest 4 to horizontally move on the screw rod; the ram 5 is installed on the tool rest 4, the tool rest 4 drives the ram 5 to move horizontally together, and the screw device in the tool rest 4 in the vertical direction drives the ram 5 to move in the vertical direction. Because the stroke of the lead screw in the horizontal direction in the cross beam 6 is limited, the rotary axis of the tool rest 4 does not pass through the rotary axis of the rotary worktable 1, so that the tool rest becomes an eccentric tool rest and generates a large eccentric distance, and therefore, the reference is transferred to the inspection flat plate 7 and the square 9, and the parallelism of the ram 5 to the rotary worktable 1 is detected on the basis; before the final purpose is achieved, the tool rest 4 can meet the requirement on the parallelism of the rotary worktable 1 when moving along the X-axis direction of the horizontal shaft, and then the inspection flat plate 7 is used as a transition reference to be adjusted by the auxiliary adjusting device 8 so as to meet the requirement on the parallelism in the X-axis and C-axis directions, and a foundation is laid for the final purpose of meeting the requirement on the parallelism of the rotary axis of the rotary worktable 1 when detecting the movement of the ram 5; after the flat plate 7 is detected to be leveled, a square 9 is placed on the plane of the flat plate to be used as a detection reference, and the micrometer 3 is used for detecting the parallelism of the rotation axis of the rotary worktable 1 when the ram 5 moves in a plane vertical to the cross beam 6 and a plane parallel to the cross beam 6.
The method combines the X axis of the horizontal axis of the linear motion of the machine tool with the C axis of the rotary motion axis, and converts the rotary axis datum of the rotary worktable 1 to the detection datum plane of the square 9 by using the detection principle of translation and conversion of the detection datum so as to achieve the final detection purpose.
Claims (3)
1. A method for detecting the parallelism of a rotating axis of a workbench by the movement of a ram of an eccentric tool rest is used for detecting the parallelism of the rotating axis of the workbench (1) in a plane perpendicular to a cross beam (6) and a plane parallel to the cross beam (6) when a tool rest (4) and the ram (5) move, and a professional measuring and checking tool is adopted and comprises a flat ruler (2), a dial indicator (3), a checking flat plate (7), an auxiliary adjusting device (8) and a square (9), wherein firstly, the tool rest (4) on the cross beam (6) of the machine tool is detected by the dial indicator (3) arranged on the flat ruler (2) to meet the requirement of the parallelism of the rotating workbench (1) when the tool rest (4) moves; secondly, detecting the parallelism of the inspection flat plate (7) in the X-axis direction and the parallelism of the inspection flat plate (7) in the C-axis direction by using a dial indicator (3) arranged on the inspection flat plate (7) and the auxiliary adjusting device (8), wherein the inspection flat plate (7) is arranged above the auxiliary adjusting device (8); the two-time parallelism adjustment is used for meeting the accuracy detection based on the parallelism of the rotating axis of the rotary table (1) when the ram (5) moves in a plane vertical to the cross beam (6) and a plane parallel to the cross beam (6).
2. The method for detecting the parallelism of the ram movement of the eccentric tool rest on the rotation axis of the workbench according to claim 1, which is characterized in that: the following steps are adopted:
(a) a horizontal ruler (2) is arranged on the plane of the rotary table (1), and a micrometer (3) is used for detecting and adjusting a tool rest (4) which moves linearly when moving along the X-axis direction of a horizontal axis, so that the requirement on the parallelism of the rotary table (1) can be met;
(b) a detection flat plate (7) and an auxiliary adjusting device (8) are placed on the plane of the rotary worktable (1) in the stroke range of the tool rest (4) which makes linear motion along the X-axis direction of the horizontal axis;
(c) the movable tool rest (4) moves linearly along the X-axis direction of the horizontal shaft, a dial indicator (3) is used for detecting whether the parallelism of the inspection flat plate (7) in the X-axis direction meets the requirement, and if the parallelism does not meet the requirement, an auxiliary adjusting device (8) can be used for adjusting;
(d) moving a rotating motion axis C shaft of the rotating workbench (1), detecting whether the parallelism of the inspection flat plate (7) in the rotating direction of the axis C meets the requirement by using a dial indicator (3), and if the parallelism does not meet the requirement, adjusting by using an auxiliary adjusting device (8);
(e) taking the upper plane of the inspection flat plate (7) as a reference, placing a square (9) in a plane vertical to the cross beam (6), and detecting whether the parallelism of the ram (5) to the rotation axis of the rotary worktable (1) meets the requirement when the ram (5) moves by using a dial indicator (3);
(f) taking the upper plane of the inspection flat plate (7) as a reference, placing a square (9) in a plane parallel to the cross beam (6), and detecting whether the parallelism of the ram (5) to the rotation axis of the rotary worktable (1) meets the requirement when the ram (5) moves by using a dial indicator (3);
(g) and after the detection is qualified, the machine tool can detect other items.
3. The method for detecting the parallelism of the ram movement of the eccentric tool rest on the rotation axis of the workbench according to claim 1, which is characterized in that: the inspection flat plate (7) is a square plate body, the auxiliary adjusting device (8) is a screw jack, and the auxiliary adjusting device (8) below can adjust the parallelism of the inspection flat plate (7) above the screw jack.
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| CN202011574393.9A CN112504095B (en) | 2020-12-28 | 2020-12-28 | Method for detecting parallelism of ram movement of eccentric tool rest on rotary axis of workbench |
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| CN202011574393.9A CN112504095B (en) | 2020-12-28 | 2020-12-28 | Method for detecting parallelism of ram movement of eccentric tool rest on rotary axis of workbench |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116878365A (en) * | 2023-09-06 | 2023-10-13 | 通用技术集团机床工程研究院有限公司 | AB axis turntable detection method |
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2020
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| CN101059329A (en) * | 2007-04-16 | 2007-10-24 | 齐重数控装备股份有限公司 | Machine tool parts rotating accuracy detecting device and detection method |
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| CN116878365A (en) * | 2023-09-06 | 2023-10-13 | 通用技术集团机床工程研究院有限公司 | AB axis turntable detection method |
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