CN113618489B - Device for detecting and correcting jumping precision of numerical control machine tool and using method - Google Patents
Device for detecting and correcting jumping precision of numerical control machine tool and using method Download PDFInfo
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- CN113618489B CN113618489B CN202110921682.XA CN202110921682A CN113618489B CN 113618489 B CN113618489 B CN 113618489B CN 202110921682 A CN202110921682 A CN 202110921682A CN 113618489 B CN113618489 B CN 113618489B
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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
- B23Q17/2291—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work for adjusting the workpiece relative to the holder thereof
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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
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/20—Automatic control or regulation of feed movement, cutting velocity or position of tool or work before or after the tool acts upon the workpiece
- B23Q15/22—Control or regulation of position of tool or workpiece
- B23Q15/26—Control or regulation of position of tool or workpiece of angular position
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Abstract
The invention provides a device for detecting and correcting the jumping precision of a numerical control machine tool and a using method thereof, belonging to the technical field of machine tools. According to the invention, the tool plate is provided with the jumping precision detection mechanism and the secondary correction mechanism, so that the workpiece to be machined on the main shaft chuck is subjected to jumping precision detection, and the workpiece to be machined is corrected and then clamped on the chuck under the condition of requirement, and therefore, the absolute concentricity of the workpiece to be machined and the main shaft is ensured, the machining precision is ensured, the damage of a tool is avoided, and the product percent of pass is also improved; in addition, the use method of self-processing the clamping hole in the secondary correcting mechanism through the main shaft ensures that the clamping hole can be absolutely concentric with the main shaft, so that the corrected substitute machined part can be more concentric with the main shaft, the machining precision is further ensured, and the automatic machining operation of a numerical control machine tool is more facilitated.
Description
Technical Field
The invention relates to the technical field of machine tools, in particular to a device for detecting and correcting the jumping precision of a numerical control machine tool and a using method thereof.
Background
Along with the development of automation technology, the unloading of digit control machine tool has all realized automaticly, and to automatic unloading, the mode of accessible work piece free fall goes on, can directly pass through the ejector pin with the work piece ejecting can, but, to automatic feeding, need will treat machined part clamping to the (holding) chuck on, and need guarantee to treat the stability and the accuracy of machined part clamping on the (holding) chuck.
Under the general condition, be provided with the manipulator by the main shaft side of digit control machine tool and grab, grab through the manipulator and wait that machined part clamping to (holding) chuck on, because there is the stroke error in the motion process in the manipulator grabs, lead to treating machined part clamping to (holding) chuck on the time, the problem of treating machined part and main shaft decentraction easily appears, lead to follow-up start-up main shaft and drive to treat when the machined part rotates, treat that the machined part can the swing scheduling problem appear, both easily cause the damage to the processing cutter, also easily lead to treating scrapping of machined part, be unfavorable for the automated processing operation of digit control machine tool.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a device for detecting and correcting the jumping precision of a numerical control machine tool and a using method thereof, wherein the jumping precision detection mechanism and the secondary correction mechanism are arranged on the rack and beside a main shaft, after a mechanical arm grabs and clamps a workpiece to be machined to a chuck, the jumping precision detection is firstly carried out through the jumping precision detection mechanism, whether the clamping is concentric or not is judged, if the clamping is concentric, the machining is directly carried out, if the clamping is not concentric, the workpiece to be machined needs to be secondarily corrected through the secondary correction mechanism and then clamped to the chuck, so that the absolute concentricity of the workpiece to be machined and the main shaft is ensured, the machining precision is ensured, the damage of a cutter is avoided, the product qualification rate is improved, and the automatic machining operation of the numerical control machine tool is facilitated.
The specific technical scheme is as follows:
the utility model provides a digit control machine tool detects device of rectifying precision of beating sets up on the cutting board in main shaft the place ahead of frame, and main shaft and cutting board are the relative feed motion of keeping away from or being close to, has such characteristic, includes:
the jumping precision detection mechanism comprises a detection mounting frame, a lifting driver and a detection sensor, the detection mounting frame is fixed on the cutting board, the lifting driver which is arranged vertically downwards is arranged on the detection mounting frame, and meanwhile, the detection sensor is arranged on a driving shaft of the lifting driver;
secondary guiding mechanism, secondary guiding mechanism sets up on the cutting board and is located the side of beating precision detection mechanism, including fixed sheath, the sliding component, activity sheath and removal flexible driver, the bottom fixed mounting of fixed sheath is on the cutting board, first semicircular hole has been seted up to one side of fixed sheath, the sliding component sets up on the cutting board and is located one side that fixed sheath is provided with first semicircular hole, the activity sheath is installed on the sliding component and can be near or keep away from the reciprocating motion of fixed sheath, the second semicircular hole that corresponds with first semicircular hole is seted up to one side that just is located near fixed sheath on the activity sheath, and first semicircular hole and second semicircular hole form the circular shape clamping hole parallel with the axle center of main shaft when fixed sheath and activity sheath draw close together, remove flexible driver and be fixed in on the cutting board and its telescopic shaft is connected on the activity sheath.
The device for detecting and correcting the jumping precision of the numerical control machine tool is characterized in that the detection sensor is a displacement sensor.
The device for detecting and correcting the jumping precision of the numerical control machine tool is characterized in that a mounting plate extending horizontally is arranged on a driving shaft of the lifting driver, and the detection sensor is mounted at one end extending out of the mounting plate.
The utility model provides an foretell device of digit control machine tool detection correction precision of beating, wherein, secondary aligning gear still includes bottom plate and drive mounting bracket, and on the bottom of bottom plate was fixed in the cutting board, the bottom plate was located one side that fixed sheath was provided with first semicircular hole, and the slip subassembly sets up in the one end that the bottom plate is close to fixed sheath, and drive mounting bracket fixed mounting is on the other end of bottom plate, and the flexible driver of removal is installed on the drive mounting bracket.
The device for detecting and correcting the jumping precision of the numerical control machine tool comprises a guide rail and a sliding block, wherein the guide rail is of a double-rail structure, the guide rail is arranged on a bottom plate and is arranged along the axial direction perpendicular to a main shaft, the sliding block is arranged on the guide rail in a sliding mode, and a movable sheath is arranged on the sliding block.
The utility model provides an foretell device of digit control machine tool detection correction precision of beating, wherein, first semicircle orifice and second semicircle orifice are drawn close the back for fixed sheath and activity sheath and are formed through the main shaft self-processing.
The utility model provides an foretell device of digit control machine tool detection correction precision of beating, wherein, the main shaft is before first semicircular hole and the semicircular hole of second of self-processing, presss from both sides between fixed sheath and the activity sheath and is equipped with the supplementary gasket that processes.
The use method of the device for detecting and correcting the jumping precision of the numerical control machine tool is that the device for detecting and correcting the jumping precision of the numerical control machine tool is any one of the devices, and comprises the following steps:
step S1, pre-machining a clamp hole;
starting a secondary correction mechanism, enabling a movable telescopic driver to drive a movable sheath to move towards one side of a fixed sheath and enable the movable sheath and the fixed sheath to be close, then starting a main shaft, determining size data of a workpiece to be machined, and self-machining between the movable sheath and the fixed sheath through the main shaft to obtain a clamping hole with the size consistent with that of the workpiece to be machined;
s2, clamping and detecting for one time;
clamping a workpiece to be machined to a chuck on a main shaft at one time through a manipulator, controlling the main shaft or a cutter plate to move, moving the workpiece to be machined to the position below a detection sensor, starting a jumping precision detection mechanism and the main shaft, controlling the detection sensor to gradually approach the workpiece to be machined, completing jumping precision detection, and if the jumping precision is poor, performing step S3, otherwise, performing step S4;
s3, secondary clamping;
the movable sheath and the fixed sheath are driven to be separated through a movable telescopic driver of the secondary correction mechanism, the jumping precision detection mechanism is controlled to reset and the main shaft is controlled to stop, then the main shaft or the cutter plate is controlled to perform feeding motion again, a workpiece to be machined is moved to the secondary correction mechanism, one end of the workpiece to be machined is placed into the clamping hole, then the chuck is loosened, the movable telescopic driver of the secondary correction mechanism is started to enable the movable sheath and the fixed sheath to clamp the workpiece to be machined, the workpiece to be machined is corrected, then the workpiece to be machined is clamped through the chuck, and finally the movable telescopic driver is started to separate the movable sheath from the fixed sheath;
s4, resetting to be processed;
and controlling the main shaft or the cutting board to reset to an initial rotating state to wait for processing.
In step S2, before the workpiece to be processed moves below the detection sensor, a lifting driver of the jumping precision detection mechanism needs to be controlled to drive the detection sensor to lift.
A using method of a device for detecting and correcting jumping precision of a numerical control machine tool is disclosed, wherein in step S1, a fixed sheath and a movable sheath are both of a solid block structure before a clamping hole is machined, and the clamping hole is obtained through a boring machining process.
The positive effects of the technical scheme are as follows:
the device for detecting and correcting the jumping precision of the numerical control machine tool and the using method thereof are characterized in that the jumping precision detecting mechanism and the secondary correcting mechanism are arranged on the cutter plate, after a workpiece to be machined is clamped on the chuck plate by the mechanical arm, the jumping precision detection is firstly carried out through the jumping precision detecting mechanism, whether the clamping is concentric is judged, if the clamping is concentric, the machining is directly carried out, if the clamping is not concentric, the workpiece to be machined needs to be corrected through the secondary correcting mechanism and then clamped on the chuck plate, so that the absolute concentricity of the workpiece to be machined and the main shaft is ensured, the machining precision is ensured, the damage of a cutter is avoided, the product qualification rate is also improved, the automatic machining operation of the numerical control machine tool is facilitated, in addition, the clamping hole in the secondary correcting mechanism is obtained by self-machining of the main shaft according to the size of the workpiece to be machined, so that the main shaft and the clamping hole are absolutely concentric, the machining precision is further ensured, and the using method is more reasonable.
Drawings
Fig. 1 is a structural diagram of a runout accuracy detecting mechanism of a device for detecting and correcting runout accuracy of a numerical control machine tool of the invention;
FIG. 2 is a structural diagram of a secondary calibration mechanism of the device for detecting and calibrating the jumping precision of the numerical control machine tool of the invention;
fig. 3 is a flow chart of a method for using the apparatus for detecting and correcting runout accuracy of a numerically-controlled machine tool according to the present invention.
In the drawings: 1. a cutting board; 2. a run-out precision detection mechanism; 21. detecting the mounting rack; 22. a lift drive; 23. a detection sensor; 24. mounting a plate; 3. a secondary correction mechanism; 31. fixing the sheath; 32. a sliding assembly; 33. a movable sheath; 34. moving the telescopic driver; 35. clamping holes; 36. a base plate; 37. driving the mounting frame; 321. a guide rail; 322. a slider; 351. a first semi-circular aperture; 352. a second semi-circular aperture; 4. auxiliary processing of the gasket; 5. a frame.
Detailed Description
In order to make the technical means, creation features, achievement objects and effects of the present invention easily understood, the following embodiments are specifically set forth in the following description with reference to fig. 1 to 3, but the following contents are not intended to limit the present invention.
FIG. 1 is a structural diagram of a run-out accuracy detecting mechanism of a device for detecting and correcting run-out accuracy of a numerical control machine tool according to the present invention; fig. 2 is a structural diagram of a secondary correction mechanism of a device for detecting and correcting the jumping precision of a numerical control machine tool. As shown in fig. 1 and fig. 2, the device for detecting and correcting runout accuracy of the numerically-controlled machine tool provided in this embodiment is disposed on the cutting board 1 in front of the main shaft of the frame 5, and at this time, the main shaft and the cutting board 1 on the frame 5 can make a relatively far or close feeding motion, that is, the numerically-controlled machine tool can be a structure in which the main shaft moves, or a structure in which the cutting board 1 moves, or a structure in which both the main shaft and the cutting board 1 move. In addition, the device for detecting and correcting the jumping precision of the numerical control machine tool provided by the embodiment comprises: the jumping precision detection mechanism 2 and the secondary correction mechanism 3 provide conditions for jumping precision detection of a workpiece to be machined clamped on a chuck of a subsequent main shaft and secondary clamping after correction of the workpiece to be machined.
Specifically, the jumping precision detecting mechanism 2 includes a detecting mounting frame 21, a lifting driver 22 and a detecting sensor 23, and at this time, the detecting mounting frame 21 is fixed on the cutting board 1, so that a condition is provided for the subsequent jumping precision mechanism to move relative to the spindle. And, be provided with the lift driver 22 of arranging vertically downwards on detecting the mounting bracket 21, simultaneously, install detection sensor 23 in lift driver 22's drive shaft, install lift driver 22 on cutting board 1 through detecting mounting bracket 21 promptly, simultaneously, drive detection sensor 23 through lift driver 22 and do elevating movement in vertical direction, for follow-up detection sensor 23 is close to gradually treating the machined part and realize beating precision detection and provide the structural basis, also provide the condition for preventing to treat that the machined part mis-hits detection sensor 23 and cause structural damage simultaneously.
Specifically, the secondary correcting mechanism 3 is arranged on the cutting board 1 and located beside the run-out precision detecting mechanism 2, so that the installation of the secondary correcting mechanism 3 on the cutting board 1 is realized, and conditions are provided for the follow-up movement of the secondary correcting mechanism 3 relative to the main shaft. At this moment, secondary correction mechanism 3 is again including fixed sheath 31, sliding assembly 32, activity sheath 33 and removal telescopic drive 34, with the bottom fixed mounting of fixed sheath 31 on cutting board 1, simultaneously, first semicircle orifice 351 has been seted up in one side of fixed sheath 31, first semicircle orifice 351 here is obtained for follow-up self-processing through the main shaft, and, sliding assembly 32 sets up on cutting board 1 and is located one side that fixed sheath 31 was provided with first semicircle orifice 351, activity sheath 33 is installed on sliding assembly 32 and can be close to or keep away from the reciprocating motion of fixed sheath 31, it can draw close to or separate with fixed sheath 31 to have realized promptly that activity sheath 33 can, for the processing of follow-up clamping hole 35 and treat that the machined part carries out the secondary clamping after rectifying and provide the condition. In addition, a second semicircular hole 352 corresponding to the first semicircular hole 351 is formed in one side, which is located close to the fixed sheath 31, of the movable sheath 33, when the fixed sheath 31 and the movable sheath 33 are closed, the first semicircular hole 351 in the fixed sheath 31 and the second semicircular hole 352 in the movable sheath 33 form a circular clamping hole 35 parallel to the axis of the spindle, and the second semicircular hole 352 is obtained through self-machining of the spindle in the position, namely, after the fixed sheath 31 and the movable sheath 33 are closed, the clamping hole 35 is obtained through self-machining of the spindle between the fixed sheath 31 and the movable sheath 33, so that absolute concentricity of the clamping hole 35 and the spindle is guaranteed, workpieces to be machined, which are subsequently corrected through the secondary correcting mechanism 3, can be absolutely concentric with the spindle, and conditions are provided for guaranteeing machining accuracy. In addition, the movable telescopic driver 34 is fixed on the knife board 1 and the telescopic shaft thereof is connected to the movable sheath 33, that is, the movable sheath 33 is driven by the telescopic shaft of the movable telescopic driver 34 to move on the sliding assembly 32, so as to provide driving force for the movable sheath 33 to approach or leave the fixed sheath 31.
More specifically, the detection sensor 23 among the run-out precision detection mechanism 2 is displacement sensor, treat that the machined part is rotatory under the drive of main shaft on the (holding) chuck promptly, be close to gradually through detection sensor 23 and treat the machined part, if its displacement run-out change is great, then explain should treat that the machined part clamping is inaccurate, need follow-up correction, if its displacement run-out change is less, then explain should treat that the machined part clamping is more accurate, can directly process, need not to rectify again, and, displacement sensor is when detecting, data display is directly perceived, the contrast is showing, easily the operator judges. It should be noted that the displacement sensor may be a commonly-used displacement sensor in the market, and the displacement bounce detection may be implemented, and therefore, the specific structure thereof is not described herein again.
More specifically, be provided with mounting panel 24 in lift driver 22's the drive shaft, the one end of mounting panel 24 and lift driver 22's the actuating shaft connection, the other end level of mounting panel 24 stretches out, and, install detection sensor 23 on the one end that mounting panel 24 stretches out, thereby make detection sensor 23 can keep away from lift driver 22 and be used for installing lift driver 22's detection mounting bracket 21, thereby make detection sensor 23 have enough big space all around and be used for subsequent jump precision to detect, prevent the problem of collision damage, structural design is more reasonable.
More specifically, the secondary correction mechanism 3 includes a base plate 36 and a drive mounting bracket 37, in addition to the above-mentioned fixed sheath 31, the slide assembly 32, the movable sheath 33, and the movable telescopic driver 34. At this time, the bottom of the bottom plate 36 is fixed on the knife board 1, and the bottom plate 36 is arranged on one side of the fixed sheath 31 provided with the first semicircular hole 351, meanwhile, the sliding assembly 32 is arranged at one end of the bottom plate 36 close to the fixed sheath 31, the driving mounting frame 37 is fixedly arranged at the other end of the bottom plate 36, and the movable telescopic driver 34 is arranged on the driving mounting frame 37, namely, the sliding assembly 32, the movable sheath 33 and the movable telescopic driver 34 form an integral structure through the bottom plate 36 and the driving mounting frame 37, so that the assembly and disassembly are convenient, the structural strength is ensured at the same time, and the structural design is more reasonable.
More specifically, the sliding assembly 32 in the secondary correction mechanism 3 further includes a guide rail 321 and a sliding block 322, and at this time, the guide rail 321 is a double-rail structure, so that the supporting stability of the guide rail 321 is improved, and a condition is provided for the stable movement of the subsequent movable sheath 33. In addition, the guide rail 321 is arranged on the bottom plate 36 and is arranged along the axial direction perpendicular to the main shaft, the sliding block 322 is slidably arranged on the guide rail 321, and the movable sheath 33 is arranged on the sliding block 322, that is, the movable sheath 33 is slidably arranged on the guide rail 321 through the sliding block 322, so that the movable sheath 33 can move on the bottom plate 36 and can also guide the movement of the movable sheath 33, the moving stability is improved, and the structural design is more reasonable.
More specifically, first semicircular hole 351 and second semicircular hole 352 are drawn close for fixed sheath 31 and activity sheath 33 and are formed through the main shaft self-processing, make the clamping hole 35 that first semicircular hole 351 and second semicircular hole 352 constitute can be totally concentric with the main shaft to treat that the machined part can keep absolutely concentric with the main shaft for follow-up after correcting through secondary correction mechanism 3, thereby guaranteed the machining precision.
More specifically, the main shaft is before processing first semicircular hole 351 and second semicircular hole 352 from the beginning, and when movable sheath 33 moved towards fixed sheath 31 and drawn close, it is equipped with supplementary processing gasket 4 to press from both sides between fixed sheath 31 and movable sheath 33, promptly when processing from the frock clamp hole 35 through the main shaft, place the supplementary processing gasket 4 of certain thickness between fixed sheath 31 and the movable sheath 33, thereby make in the follow-up back of taking off supplementary processing gasket 4, first semicircular hole 351 and second semicircular hole 352 on fixed sheath 31 and the movable sheath 33 are the structure that is less than, thereby make in the follow-up when treating the machined part and proofreaying, can guarantee that clamping hole 35 presss from both sides tightly completely and treats the machined part, the reliability of proofreading is guaranteed, structural design is more reasonable.
Preferably, the lifting driver 22 and the movable telescopic driver 34 are one of an air cylinder, a hydraulic cylinder and an electric rod, and can realize linear movement, so that the selectivity is high, and the production and the manufacture are convenient.
In addition, the embodiment also provides a using method of the device for detecting and correcting the jumping precision of the numerical control machine tool, and the device for detecting and correcting the jumping precision of the numerical control machine tool in the using method is the device for detecting and correcting the jumping precision of the numerical control machine tool. Fig. 3 is a flowchart of a method for using a device for detecting and correcting jump accuracy of a numerically-controlled machine tool according to the present invention, and as shown in fig. 1 to 3, the method for using the device for detecting and correcting jump accuracy of the numerically-controlled machine tool includes the following steps:
step S1, pre-machining a clamp hole 35;
the secondary correcting mechanism 3 is started firstly, so that the movable telescopic driver 34 drives the movable sheath 33 to move towards one side of the fixed sheath 31 and the movable sheath 33 and the fixed sheath 31 are close, then the main shaft is started, the size data of the workpiece to be machined is determined, through the feeding motion of the main shaft or the cutter plate 1, the main shaft automatically processes between the movable sheath 33 and the fixed sheath 31 to obtain a clamping hole 35 with the size consistent with that of the workpiece to be machined, the absolute concentricity of the clamping hole 35 and the main shaft is ensured, the concentricity of the workpiece to be machined and the main shaft after correction can be ensured when the subsequent workpiece to be machined is corrected, and the machining quality is ensured. After the machining of the mounting hole is completed, the spindle or the cutting board 1 is reset, and the movable telescopic driver 34 drives the movable sheath 33 to move to an initial position towards one side far away from the fixed sheath 31 to wait for subsequent machining operation.
S2, clamping and detecting for one time;
clamping a workpiece to be machined to a chuck on a main shaft at one time through a manipulator, controlling the main shaft or a cutter plate 1 to perform feed motion, moving the workpiece to be machined to the position below a detection sensor 23, starting the main shaft to rotate, starting a jumping precision detection mechanism 2, controlling the detection sensor 23 to gradually approach the workpiece to be machined, observing the stroke jumping size of the detection sensor 23 by contacting the workpiece to be machined with the detection sensor 23, and completing jumping precision detection, wherein if the stroke jumping of the detection sensor 23 is large, the jumping precision of the workpiece to be machined is poor, and subsequent correction is needed, step S3 is performed, if the stroke jumping of the detection sensor 23 is small, the jumping precision of the workpiece to be machined is high, and step S3 is not needed, and step S4 is directly performed. After the detection of the runout accuracy is completed, the detection sensor 23 is reset, and the workpiece to be processed is removed from below the detection sensor 23.
S3, secondary clamping;
the movable sheath 33 and the fixed sheath 31 are driven to be separated by the movable telescopic driver 34 of the secondary correcting mechanism 3, namely, the movable telescopic driver 34 is driven to drive the movable sheath 33 to move to an initial position towards one side far away from the fixed sheath 31 in the step S1, so that the clamping hole 35 is opened, a gap exists between the first semicircular hole 351 and the second semicircular hole 352, and a workpiece to be processed, which needs to be corrected after the workpiece is conveniently stretched into the gap. And, the runout accuracy detecting mechanism 2 is controlled to be reset and the spindle is stopped, that is, the detecting sensor 23 is reset in step S2, and the workpiece to be processed is moved away from the lower side of the detecting sensor 23 to prevent the detecting sensor 23 from being damaged. Then the main shaft or the cutter plate 1 is controlled to perform feeding motion again, so that the workpiece to be machined is moved to the secondary correcting mechanism 3, one end of the workpiece to be machined is placed into the clamping hole 35, then the chuck is loosened, the movable telescopic driver 34 of the secondary correcting mechanism 3 is started, the movable sheath 33 and the fixed sheath 31 clamp the workpiece to be machined, the workpiece to be machined is corrected, then the workpiece to be machined is clamped through the chuck, the workpiece to be machined on the chuck is completely concentric with the main shaft, and machining precision is guaranteed. Finally, after the workpiece to be processed is clamped on the chuck, the movable telescopic driver 34 is started to separate the movable sheath 33 from the fixed sheath 31, so that the workpiece to be processed is separated from the secondary correction mechanism 3 and is prepared for subsequent processing.
S4, resetting to be processed;
and controlling the main shaft or the cutter plate 1 to reset to an initial rotating state to wait for the subsequent matching of a cutter to process the workpiece to be processed on the chuck.
More specifically, in step S2, before the workpiece to be processed moves to the position below the detection sensor 23, the lifting driver 22 of the jumping precision detection mechanism 2 needs to be controlled to drive the detection sensor 23 to ascend, so that not only is the collision between the workpiece to be processed and the detection sensor 23 avoided when the workpiece moves to the position below the detection sensor 23, but also a condition is provided for the subsequent gradual approach of the detection sensor 23 to the workpiece to be processed, and the safety guarantee is higher.
More specifically, in step S1, the fixed sheath 31 and the movable sheath 33 are both solid block-shaped structures before the clamping hole 35 is processed, which is beneficial to self-processing the clamping hole 35 through the main shaft in the following step, and the clamping hole 35 is obtained by a boring processing technology, so that the processing of the clamping hole 35 is facilitated, and the technology is mature and reliable.
According to the device and the using method for detecting and correcting the jumping precision of the numerical control machine tool, the jumping precision detecting mechanism 2 and the secondary correcting mechanism 3 are arranged on the cutter plate 1, after a workpiece to be machined is clamped on a chuck by a mechanical hand, the jumping precision detecting mechanism 2 is used for detecting the jumping precision, whether the workpiece to be machined and a spindle are concentric or not is judged, if the jumping precision is detected and displayed to be concentric, subsequent machining is directly performed, if the workpiece to be machined is displayed to be in a non-concentric state, the workpiece to be machined needs to be corrected through the secondary correcting mechanism 3 and then clamped on the chuck, so that the absolute concentricity of the workpiece to be machined and the spindle is ensured, the damage of a cutter is avoided, the product qualification rate is improved, in addition, in the using method, the clamping hole 35 in the secondary correcting mechanism 3 needs to be obtained through self-machining according to the size of the workpiece to be machined, the clamping hole 35 obtained through self-machining can be absolutely concentric with the spindle, the workpiece to be corrected by the numerical control machine tool can be higher in concentricity with the spindle, the machining precision is further ensured, the using method is more reasonable, and the automatic machining operation of the numerical control machine tool is more beneficial.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a digit control machine tool detects device of rectifying precision of beating sets up on the cutting board in the main shaft the place ahead of frame, just the main shaft with the relative feed motion of keeping away from or being close to is done to the cutting board, its characterized in that includes:
the jumping precision detection mechanism comprises a detection mounting frame, a lifting driver and a detection sensor, the detection mounting frame is fixed on the cutting board, the lifting driver which is arranged vertically downwards is arranged on the detection mounting frame, and meanwhile, the detection sensor is arranged on a driving shaft of the lifting driver;
the secondary correction mechanism is arranged on the cutting board and located beside the jumping precision detection mechanism and comprises a fixed sheath, a sliding assembly, a movable sheath and a movable telescopic driver, the bottom of the fixed sheath is fixedly arranged on the cutting board, a first semicircular hole is formed in one side of the fixed sheath, the sliding assembly is arranged on the cutting board and located on one side of the fixed sheath, where the first semicircular hole is formed, the movable sheath is arranged on the sliding assembly and can reciprocate close to or away from the fixed sheath, a second semicircular hole corresponding to the first semicircular hole is formed in one side of the movable sheath, which is close to the fixed sheath, the first semicircular hole and the second semicircular hole form a circular clamping hole parallel to the axis of the spindle when the fixed sheath and the movable sheath are close together, and the movable telescopic driver is fixed on the cutting board and is connected to the movable sheath in a telescopic mode;
the first semicircular hole and the second semicircular hole are formed by self-processing of the main shaft after the fixed sheath and the movable sheath are drawn together.
2. The apparatus for testing and correcting runout accuracy of a numerically controlled machine tool according to claim 1, wherein said test sensor is a displacement sensor.
3. The apparatus for numerically controlled machine tool to detect and correct runout accuracy according to claim 1, wherein a horizontally extending mounting plate is provided on a driving shaft of the elevating driver, and the detecting sensor is mounted on an extending end of the mounting plate.
4. The device for detecting and correcting the runout precision of the numerical control machine tool according to claim 1, wherein the secondary correcting mechanism further comprises a bottom plate and a driving mounting frame, the bottom of the bottom plate is fixed on the cutting board, the bottom plate is located on one side of the fixed sheath, which is provided with the first semicircular hole, the sliding assembly is arranged at one end, close to the fixed sheath, of the bottom plate, the driving mounting frame is fixedly installed on the other end of the bottom plate, and the movable telescopic driver is installed on the driving mounting frame.
5. The device for detecting and correcting the runout precision of the numerical control machine according to claim 4, wherein the sliding assembly comprises a guide rail and a sliding block, the guide rail is of a double-rail structure, the guide rail is arranged on the bottom plate and is arranged along an axial direction perpendicular to the main shaft, the sliding block is slidably arranged on the guide rail, and the movable sheath is mounted on the sliding block.
6. The apparatus for testing and correcting runout accuracy of a numerically controlled machine tool according to claim 1, wherein an auxiliary machining gasket is interposed between said fixed sheath and said movable sheath before said spindle self-machines said first semicircular hole and said second semicircular hole.
7. The use method of the device for detecting and correcting the jumping precision of the numerical control machine tool, which is the device for detecting and correcting the jumping precision of the numerical control machine tool, as claimed in any one of claims 1 to 6, comprises the following steps:
step S1, pre-machining a clamp hole;
starting the secondary correction mechanism to enable the movable telescopic driver to drive the movable sheath to move towards one side of the fixed sheath and enable the movable sheath and the fixed sheath to be close, then starting the main shaft, determining size data of a workpiece to be machined, and self-machining between the movable sheath and the fixed sheath through the main shaft to obtain the clamping hole with the size consistent with that of the workpiece to be machined;
s2, clamping and detecting for one time;
clamping the workpiece to be machined to a chuck on a main shaft at one time through a manipulator, controlling the main shaft or a cutter plate to perform feed motion, moving the workpiece to be machined to the position below a detection sensor, starting a jumping precision detection mechanism and the main shaft, controlling the detection sensor to gradually approach the workpiece to be machined, completing jumping precision detection, and if the jumping precision is poor, performing step S3, otherwise, performing step S4;
s3, secondary clamping;
the movable sheath and the fixed sheath are driven to be separated through the movable telescopic driver of the secondary correction mechanism, the jumping precision detection mechanism is controlled to reset and the main shaft is controlled to stop, then the main shaft or the cutter plate is controlled to perform feeding motion again, the workpiece to be machined is moved to the secondary correction mechanism, one end of the workpiece to be machined is placed into the clamping hole, then the chuck is loosened, the movable telescopic driver of the secondary correction mechanism is started, the workpiece to be machined is clamped by the movable sheath and the fixed sheath, the workpiece to be machined is corrected, then the workpiece to be machined is clamped by the chuck, and finally the movable telescopic driver is started to separate the movable sheath from the fixed sheath;
s4, resetting to be processed;
and controlling the main shaft or the cutting board to reset to an initial rotating state to wait for processing.
8. The method for using the apparatus for inspecting and correcting runout accuracy of a numerical control machine according to claim 7, wherein in step S2, before the workpiece to be machined is moved to a position below the inspection sensor, the lifting driver of the runout accuracy inspection mechanism is controlled to lift the inspection sensor.
9. The use method of the device for detecting and correcting the runout precision of the numerical control machine tool according to claim 7, wherein in the step S1, the fixed sheath and the movable sheath are both solid block-shaped structures before the clamping hole is machined, and the clamping hole is obtained by a boring machining process.
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