CN211414572U - Chuck correcting mechanism and machine tool concentric correcting device - Google Patents

Abstract

The application provides a chuck correcting mechanism and a machine tool concentricity correcting device, which comprise a supporting structure, a pair of chucks, a correcting rod and a pair of first measuring instruments; the pair of chucks are arranged on two sides of the supporting structure, and the chucks are arranged in a mode that the central axis is horizontal; the chuck is provided with a plurality of jaws which are distributed circumferentially and can move along the radial direction of the chuck; the correcting rod penetrates through the pair of chucks and is clamped and fixed through the clamping jaws; the pair of first measuring instruments are arranged at two ends of the calibration rod and used for measuring the levelness of the calibration rod extending to the outer side of the clamping jaw. The beneficial effect of this application is: the fixed position of the calibration rod on the chuck is adjusted by adjusting the center distance and the position between the jaws on the chuck, and the difference value of the numerical value of the first measuring instrument corresponding to the two ends of the calibration rod is within a first set difference value range by adjusting the center distance of the jaws corresponding to the two ends of the calibration rod, so that the concentricity of the pair of chucks and the jaws thereof is realized.

Description

Chuck correcting mechanism and machine tool concentric correcting device

Technical Field

The utility model relates to a horizontal lathe is with one heart to rectify technical field, concretely relates to chuck aligning gear and lathe are with one heart correcting unit.

Background

At present, a few devices and methods for correcting a machine tool chuck are used, and the devices and the methods are adjusted by a double-chuck centering device. The double-chuck centering device adjusts the chuck to lead the three jaws of the chuck to gather inwards for centering through the rotary guide device. The correction method has more variables and has the following defects: 1. the rotating guide rail is deformed due to the high-temperature working environment; 2. when in adjustment, the thickness of one or more layers of the asbestos pads padded by the three claws at the tail end is different, the claws need to be frequently opened to increase or decrease the asbestos pads so as to achieve the aim, and the front end has larger error; 3. after the chuck rotation guiding device is assembled and disassembled when a fault occurs, most of manpower is consumed and the concentric position cannot be determined due to different experiences and different methods of maintenance workers; 4. the glass tube erected by operation may have large out-of-roundness to cause defects such as offset and the like. The combination of the defects easily causes large error and poor precision of the concentricity of the chucks on the two sides.

At present, a few devices and methods for machine tool concentricity correction exist, and only a nylon wire and a box ruler are combined. The nylon wire is tied on a glass tube clamped by a bearing, the height difference between the left axis and the right axis is observed by naked eyes, a box ruler is erected at the edge of the glass tube clamped by the bearing, and the jumping of the bearing is observed by naked eyes. The existing device and method for high-precision concentric correction of the machine tool are quite deficient.

Disclosure of Invention

The present application aims to solve the above problems and provide a chuck calibration mechanism and a machine tool concentricity calibration device.

In a first aspect, the present application provides a chuck calibration mechanism comprising a support structure, a pair of chucks, a calibration rod, and a pair of first gauges; the pair of chucks are arranged on two sides of the supporting structure, and the chucks are arranged in a mode that the central axis is horizontal; a plurality of jaws which are distributed circumferentially are arranged on the chuck and can move along the radial direction of the chuck; the correcting rod penetrates through the pair of chucks and is clamped and fixed through the clamping jaws; the pair of first measuring instruments are arranged at two ends of the calibration rod and used for measuring the levelness of the calibration rod extending to the outer side of the clamping jaw. The fixed position of the school stick on the chuck is adjusted through adjusting the center distance between each jack catch on the chuck.

According to the technical scheme that this application embodiment provided, bearing structure includes base plate, the perpendicular that the level set up the backup pad that the base plate set up, it is a pair of the chuck sets up the both sides of backup pad, the chuck middle part is equipped with first through-hole, correspond in the backup pad first through-hole sets up the second through-hole, the school stick runs through first through-hole and second through-hole centre gripping are fixed a pair of on the chuck.

According to the technical scheme that this application embodiment provided, the chuck corresponds along radial direction the first recess is seted up to the jack catch, one side joint of jack catch is in the first recess, the jack catch corresponds first recess sets up the screw hole, passes the first bolt of screw hole will the jack catch is fixed in the first recess.

According to the technical scheme that this application embodiment provided, the jack catch is kept away from one side of first recess is fixed with the sleeve pipe, the sleeve pipe is equipped with the internal thread, be equipped with on the sleeve pipe with sleeve pipe screw-thread fit can follow chuck radial movement's second bolt, along chuck radial movement's each the second bolt will the one end centre gripping of school stick is fixed one each between the jack catch of chuck.

In a second aspect, the application provides a concentric correcting unit of lathe, including a plurality of chuck aligning gear, each chuck aligning gear sets up respectively on the lathe head, the lathe head is movably fixed on the lathe platform, set up the slide rail on the lathe platform, correspond each in the slide rail chuck aligning gear sets up the second measuring apparatu that can slide respectively, the second measuring apparatu is used for measuring chuck aligning gear's school stick is in position on the lathe platform.

Finding out the highest point of each calibration rod through the second measuring instrument, and adjusting the height of one machine tool head on the machine tool platform by comparing the distance between the highest point of the calibration rod and the second measuring instrument so as to enable the vertical distance between the highest point of the calibration rod and the second measuring instrument to be consistent; and measuring the horizontal distance between each correcting rod and the second measuring instrument by the second measuring instrument, and adjusting the horizontal position of the chuck correcting mechanism on the machine tool head to ensure that the horizontal distances between the correcting rods and the second measuring instrument are consistent, thereby achieving the concentric effect of the machine tool.

According to the technical scheme that this application embodiment provided, the lathe is overhead to correspond chuck aligning gear sets up the second recess, second recess extending direction with the slide rail is perpendicular, chuck aligning gear is through fixing the fix with screw in the second recess is overhead.

According to the technical scheme that this application embodiment provided, the second measuring apparatu includes slider, second branch and second percentage table, the slider joint that can slide is in the slide rail, second branch is fixed on the slider, the second percentage table sets up second branch is kept away from the one end of slide rail, the measuring head butt contact of second percentage table corresponds the surface of school stick.

According to the technical scheme that this application embodiment provided, the lathe head with set up driving motor between the lathe platform, driving motor drive the lathe head is in go up and down to move on the lathe platform.

The invention has the beneficial effects that: the application provides a chuck correcting mechanism, which comprises a supporting structure, a pair of chucks, a correcting rod and a pair of first measuring instruments; the pair of chucks are arranged on two sides of the supporting structure, and the chucks are arranged in a mode that the central axis is horizontal; a plurality of jaws which are distributed circumferentially are arranged on the chuck and can move along the radial direction of the chuck; the correcting rod penetrates through the pair of chucks and is clamped and fixed through the clamping jaws; the pair of first measuring instruments are arranged at two ends of the calibration rod and used for measuring the levelness of the calibration rod extending to the outer side of the clamping jaw.

The fixed position of the calibration rod on the chuck is adjusted by adjusting the center distance between the clamping jaws on the chuck, and the difference value of the numerical value of the first measuring instrument corresponding to the two ends of the calibration rod is within a first set difference value range by adjusting the center distance between the clamping jaws corresponding to the two ends of the calibration rod, so that the concentricity of the pair of chucks and the clamping jaws thereof is realized.

Drawings

FIG. 1 is a schematic structural diagram of a first embodiment of the present application;

FIG. 2 is a schematic view of a chuck according to a first embodiment of the present application;

FIG. 3 is a schematic structural diagram of a second embodiment of the present application;

FIG. 4 is a schematic front view of a second measuring instrument according to a second embodiment of the present disclosure;

FIG. 5 is a schematic side view of a second measurement instrument according to a second embodiment of the present disclosure;

FIG. 6 is a flow chart of a third embodiment of the present application;

FIG. 7 is a flowchart of step S40 in the third embodiment of the present application;

the text labels in the figures are represented as: 110. a substrate; 120. a support plate; 200. a chuck; 210. a first through hole; 220. a first groove; 300. calibrating a rod; 400. a first measuring instrument; 500. a claw; 510. a first bolt; 520. a sleeve; 530. a second bolt; 600. a machine head; 610. a screw; 710. a slide rail; 800. a second measuring instrument; 810. a slider; 820. a second support bar; 830. and a second dial indicator.

Detailed Description

In order that those skilled in the art will better understand the technical solutions of the present invention, the following detailed description of the present invention is provided in conjunction with the accompanying drawings, and the description of the present section is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention in any way.

Fig. 1 is a schematic diagram of a first embodiment of the present application, including a support structure, a pair of chucks 200, a proof rod 300, and a pair of first gauges 400; a pair of the chucks 200 are disposed at both sides of the support structure, the chucks 200 being disposed with the central axes thereof horizontal; a plurality of jaws 500 distributed circumferentially are arranged on the chuck 200, and the jaws 500 can move along the radial direction of the chuck 200; the calibration rod 300 penetrates through a pair of chucks 200 and is clamped and fixed by the jaws 500; a pair of the first measuring instruments 400 are disposed at both ends of the proof rod 300, and the first measuring instruments 400 are used to measure the levelness of the proof rod 300 extending to the outside of the jaws 500. In this embodiment, three clamping jaws 500 are circumferentially disposed on each chuck 200, and in other embodiments, the number of the clamping jaws 500 disposed on the chuck 200 may be other values greater than three.

The fixed position of the calibration rod 300 on the chuck 200 is adjusted by adjusting the center distance between the jaws 500 on the chuck 200, and the difference value of the values of the first measuring instruments 400 corresponding to the two ends of the calibration rod 300 is within a first set difference value range by adjusting the center distance of the jaws 500 corresponding to the two ends of the calibration rod 300, so that the concentricity of the pair of chucks 200 and the jaws 500 thereof is realized.

In this embodiment, the calibration rod 300 is a cylinder that is turned by a lathe, and is suspended vertically by brushing oil after each use so as not to deform, bend, oxidize, corrode, and calibrate the roundness before use. The cross-section diameter of the round column of the correcting rod 300 is 6cm, the length is 120cm, and the material is 304 stainless steel. Experiments have shown that this diameter and length are most favorable for chuck 200 calibration: the mass is large due to the overlarge diameter, and the operation and the use are not easy; the diameter is too small to facilitate subsequent position adjustment; the result is inaccurate due to the bending risk caused by overlong length; the length can not be corrected at the same time.

In this embodiment, the first measuring instrument 400 includes a first supporting rod vertically disposed on the substrate 110, a first dial indicator is disposed at an end of the first supporting rod away from the substrate 110, and a measuring head of the first dial indicator abuts against and contacts a surface of the calibration rod 300. The first support rods at the two ends of the calibration rod 300 are fixed on the base plate 110, so that the first support rods have the same height reference, and then the first dial indicator is fixed at the same height position of the first support rods, so that the measuring heads of the first dial indicator vertically and downwards abut against and contact the surface of the calibration rod 300.

Preferably, the supporting structure includes a horizontally disposed substrate 110 and a supporting plate 120 perpendicular to the substrate 110, the pair of chucks 200 are disposed on two sides of the supporting plate 120, a first through hole 210 is disposed in the middle of the chuck 200, a second through hole is disposed on the supporting plate 120 corresponding to the first through hole 210, and the calibration rod 300 penetrates through the first through hole 210 and the second through hole and is clamped and fixed on the pair of chucks 200. The proof rod 300 is horizontally penetratingly disposed between the pair of chucks 200, and both ends of the proof rod 300 extend outside the pair of chucks 200 and the jaws 500 thereof, respectively.

Preferably, as shown in fig. 2, the chuck 200 is provided with a first groove 220 corresponding to the jaw 500 in a radial direction, one side of the jaw 500 is clamped in the first groove 220, the jaw 500 is provided with a threaded hole corresponding to the first groove 220, and a first bolt 510 penetrating through the threaded hole fixes the jaw 500 in the first groove 220. The jaws 500 are movable within the first grooves 220 and the jaws 500 are fixed in different positions within the first grooves 220 by first bolts 510 passing through the threaded holes, which in turn enables the jaws 500 to be fixed in different positions in the radial direction of the chuck 200. Preferably, a plurality of asbestos gaskets may be further disposed between the jaws 500 and the check rod 300, and the asbestos gaskets may protect the check rod 300 and facilitate adjusting a gap between the jaws 500 and the check rod 300 without frequently adjusting a position of the first bolt 510 in the first groove 220.

Preferably, a sleeve 520 is fixed to a side of the jaws 500 away from the first groove 220, the sleeve 520 is provided with an internal thread, a second bolt 530 which is in threaded fit with the sleeve 520 and can move in the radial direction of the chuck 200 is arranged on the sleeve 520, and each second bolt 530 moving in the radial direction of the chuck 200 clamps and fixes one end of the proof rod 300 between each of the jaws 500 of one of the chucks 200. In order to increase the clamping force of the jaws 500 on the school rod 300 and facilitate fine adjustment of the school rod 300 by the jaws 500 in the preferred embodiment, the side of the jaws 500 is provided with a sleeve 520 with internal threads, the school rod 300 is firmly clamped between the three jaws 500 by a second bolt 530 which passes through the sleeve 520 and is in threaded fit with the sleeve, and the end of the second bolt 530 is in abutting contact with the circumferential surface of the school rod 300.

In this embodiment, the rod 300 is inserted between a pair of chucks 200, one end of the rod 300 is fixed by three jaws 500 of one chuck 200, and the other end of the rod 300 is fixed by three jaws 500 of the other chuck 200. The positions and the intervals between the three jaws 500 on the chuck 200 on one side are adjusted by the difference of the values of the first percentage table on both sides of the proof stick 300 so that the difference of the values of the first percentage table on both sides of the proof stick 300 is within the range of the first set difference, and at this time, the concentricity of the pair of chucks 200 and the jaws 500 thereof is described by the levelness of both ends of the proof stick 300 between the pair of chucks 200.

Preferably, the first set difference is 0.01 mm.

Referring to fig. 3, a second embodiment of the present application is shown, in this embodiment, the mechanisms in the first embodiments are applied to the correction of the concentricity of a machine tool, each of the chuck calibration mechanisms is respectively disposed on a machine tool head 600, the machine tool head 600 is movably fixed on a machine tool platform, a slide rail 710 is disposed on the machine tool platform corresponding to a pair of the chuck calibration mechanisms, a second measuring instrument 800 capable of sliding is respectively disposed in the slide rail 710 corresponding to each of the chuck calibration mechanisms, and the second measuring instrument 800 is used for measuring the position of a calibration rod 300 of the chuck calibration mechanism on the machine tool platform.

Finding out the highest point of each calibration rod 300 through the second measuring instrument 800, and adjusting the height of one machine tool head 600 on the machine tool platform by comparing the distance between the highest point of the calibration rod 300 and the measuring head of the second measuring instrument 800, so that the vertical distance between the highest point of the calibration rod 300 and the measuring head of the second measuring instrument 800 is consistent; the horizontal distance between each calibration rod 300 and the measuring head of the second measuring instrument 800 is measured by the second measuring instrument 800, and the horizontal distances between the calibration rod 300 and the measuring heads of the second measuring instrument 800 are consistent by adjusting the horizontal position of the chuck correcting mechanism on the machine tool head 600, so that the concentric effect of the machine tool is achieved.

While two chuck alignment mechanisms are shown in fig. 3 as being applied to the machine tool platform, in other embodiments, multiple chuck alignment mechanisms may be provided in common for machine tool concentricity alignment.

In this embodiment, the machine tool platform is a platform of a horizontal plasma machine tool, and in other embodiments, a plurality of chuck calibration mechanisms can be applied to other machine tool platforms.

Preferably, a second groove is formed in the machine head 600 corresponding to the chuck calibration mechanism, the extending direction of the second groove is perpendicular to the sliding rail 710, and the chuck calibration mechanism is fixed to the machine head 600 through a screw 610 fixed in the second groove. In this embodiment, the sliding rail 710 is horizontally disposed on the machine tool platform, the second groove extends along the horizontal direction on the upper surface of the machine tool head 600, and the extending direction of the second groove is perpendicular to the extending direction of the sliding rail 710 in the horizontal direction. The chucking correction mechanism may be fixed at different positions of the second recess by screws 610, that is, the chucking correction mechanism may be moved back and forth in a horizontal direction with respect to the slide rail 710. In the preferred embodiment, the base plate 110 of the chuck calibration mechanism is fixedly connected to the machine head 600 by a hex screw 610 or a bolt.

Preferably, as shown in fig. 4 and 5, the second measuring instrument 800 includes a slider 810, a second supporting rod 820, and a second dial indicator 830, the slider 810 is slidably clamped in the sliding rail 710, the second supporting rod 820 is fixed on the slider 810, the second dial indicator 830 is disposed at an end of the second supporting rod 820 away from the sliding rail 710, and a measuring head of the second dial indicator 830 abuts against and contacts a surface of the corresponding calibration rod 300. In the preferred embodiment, the sliding block 810 can slide in the sliding rail 710 to drive the second supporting rod 820 and the dial indicator disposed on the sliding block 810 to move to different positions relative to the calibration rod 300. In this embodiment, the installation heights and angles of the two second measuring instruments 800 installed at one side of the pair of chuck calibration mechanisms should be the same.

Preferably, a driving motor is arranged between the machine tool head 600 and the machine tool platform, and the driving motor drives the machine tool head 600 to move up and down on the machine tool platform. In the preferred embodiment, the drive motor drives the headstock 600 in a 45 ° direction for elevation movement.

Fig. 6 shows a third embodiment of the present application, which includes the following steps:

and S10, grinding and oiling the machine tool platform.

And (3) polishing the machine tool platform smoothly by using a pneumatic polishing machine with a grinding head stuck with 150-mesh abrasive paper, oiling and standing.

And S20, performing concentric correction on a pair of chucks in one chuck correcting mechanism.

The levelness of the two ends of the calibration rod 300 is adjusted by adjusting the radial position of each jaw 500 on the pair of chucks 200, so that the value difference of the first measuring instruments 400 at the two ends of the calibration rod 300 is less than or equal to a first set difference.

Each chuck calibration mechanism comprises a support structure, a pair of chucks 200, a calibration rod 300, and a pair of first meters 400; a pair of the chucks 200 are disposed at both sides of the support structure, the chucks 200 being disposed with the central axes thereof horizontal; a plurality of jaws 500 distributed circumferentially are arranged on the chuck 200, and the jaws 500 can move along the radial direction of the chuck 200; the calibration rod 300 penetrates through a pair of chucks 200 and is clamped and fixed by the jaws 500; a pair of the first measuring instruments 400 are disposed at both ends of the proof rod 300, and the first measuring instruments 400 are used to measure the levelness of the proof rod 300 extending to the outside of the jaws 500.

The fixed position of the calibration rod 300 on the chuck 200 is adjusted by adjusting the center distance between the jaws 500 on the chuck 200, and the difference value of the values of the first measuring instruments 400 corresponding to the two ends of the calibration rod 300 is within a first set difference value range by adjusting the center distance of the jaws 500 corresponding to the two sides of the calibration rod 300, so that the concentricity of the pair of chucks 200 and the jaws 500 thereof is realized. The value difference of the first measuring instruments 400 at the two ends of the calibration rod 300 is within the first set difference range, that is, the levelness at the two ends of the calibration rod 300 meets the requirement, that is, the claws 500 on the chucks 200 clamping the two ends of the calibration rod 300 are concentric, so that the purpose of correcting the concentricity of the chuck correcting mechanism is achieved.

In this step, the positions of the jaws 500 on the chuck 200 are coarsely adjusted by adjusting the positions of the first bolts 510 in the first grooves 220, then the positions of the calibration rod 300 between the three jaws 500 are adjusted by adjusting the second bolts 530 on the three jaws 500 on one chuck 200, so as to meet the requirement of levelness at two ends of the calibration rod 300, and generally, the difference between the first percentiles of the two first measuring instruments 400 can be within the range of 0.01mm by repeatedly adjusting the second bolts 3-4 times.

And S30, respectively fixing the plurality of chuck correction mechanisms with the concentrically corrected chucks on the machine tool platform through the machine tool head.

The two calibrated chuck calibration mechanisms are respectively fixed on the machine tool platform through the machine tool head 600.

Two chuck correcting mechanisms for completing self-concentricity correction are adjustably fixed on the machine tool head 600 respectively, and the machine tool head 600 is fixed on the machine tool platform.

A driving motor is installed between the machine tool head 600 and the machine tool platform, and the driving motor drives the machine tool head 600 to move up and down on the machine tool platform. In this step, the drive motor drives the headstock 600 to move up and down at an oblique upper or lower angle of inclination of 45 ° on the machine tool platform.

A second groove is formed on the machine head 600, and the base plate 110 in the chuck calibration mechanism is fixed on the machine head 600 by a hexagon screw 610 or a bolt fixed in the second groove. In this embodiment, the sliding rail 710 is horizontally disposed on the machine tool platform, the second groove extends along the horizontal direction on the upper surface of the machine tool head 600, and the extending direction of the second groove is perpendicular to the extending direction of the sliding rail 710 in the horizontal direction. The substrate 110 of the chuck calibration mechanism is fixed at different positions of the second groove, so that the chuck calibration mechanism can move back and forth in the horizontal direction relative to the slide rail 710.

And S40, sequentially performing concentric correction on the two adjacent chuck correction mechanisms on the machine tool platform until each chuck correction mechanism is concentric on the machine tool platform.

As shown in fig. 7, the present step specifically includes:

and S41, vertically and downwards arranging the measuring rods of the second measuring instruments corresponding to the adjacent chuck correcting mechanisms respectively, and arranging the measuring rods of the two second measuring instruments at the same height.

In this embodiment, the sliding block 810 can slide in the sliding rail 710 to drive the second supporting rod 820 and the dial indicator disposed on the sliding block 810 to move to different positions relative to the calibration bar 300. In this embodiment, the installation heights and angles of the pair of second measuring instruments 800 should be set to be the same. The second support bar 820 is an adjustable structure, the height and the bending angle of the second support bar 820 can be adjusted, and the second dial indicator 830 is fixed at the adjustable end of the second support bar 820.

In this step, since the second measuring instrument 800 includes the second dial indicator 830, the measuring rod in this step is the measuring rod of the second dial indicator 830, and the end of the measuring rod is a measuring head in contact with the measured object. In this step, the vertical heights of the measuring heads of the two second dial indicators 830 are consistent.

And S42, respectively adjusting the positions of the second measuring instruments on the slide rail to find out the position of the second measuring instrument when the indicating value is maximum.

This step is a process of finding the highest point of the corresponding chuck calibration mechanism calibration rod 300 by the second measuring instrument 800. Respectively searching the highest points of the calibration rods 300 of the adjacent chuck calibration mechanisms, and adjusting the height of one chuck calibration mechanism on the machine tool platform according to the difference value of the numerical values of the second dial indicators 830 of the two second measuring instruments 800.

The operation process of the step is as follows: one end of the sliding block 810 is fixed on the sliding rail 710, the other end of the sliding block 810 horizontally rotates with the fixed end as a circle center, in the process, the measuring head of the second dial indicator 830 vertically and downwards abuts against and contacts the circumferential surface of the calibration rod 300 all the time, and when the sliding block 810 rotates to the maximum value of the second dial indicator 830, the position of the second dial indicator 830 which is in contact measurement at the moment is the highest point position of the calibration rod 300. Similarly, the highest point of the calibration rod 300 of the other chuck calibration mechanism is found. And comparing the values indicated when the two second dial indicators 830 respectively find the highest points of the check sticks 300, wherein if a difference value exists between the two values, the two check sticks 300 are not positioned at the same height of the machine tool platform.

And S43, adjusting the position of the machine tool head corresponding to any one of the adjacent chuck correcting mechanisms on the machine tool platform, so that the indicating values of the two second measuring instruments are consistent.

And adjusting the height of the machine tool head 600 where one chuck correcting mechanism is located on the machine tool platform, driving the machine tool head 600 corresponding to the machine tool head 600 where the chuck correcting mechanism with the lower vertical height is located to move upwards along an inclination of 45 degrees, observing the numerical values of the two second measuring instruments 800 until the numerical values of the two second dial indicators 830 are consistent, and stopping the operation of the driving motors. In other embodiments, the machine head 600 may also be driven by the driving motor corresponding to the machine head 600 having the chuck calibration mechanism with the higher vertical height to move obliquely downward along 45 °, and the values of the two second measuring instruments 800 are observed until the values of the two second dial indicators 830 are the same, and the driving motor stops working.

And S44, horizontally arranging the measuring rods of the second measuring instruments respectively corresponding to the adjacent chuck correcting mechanisms, and arranging the measuring rods of the two second measuring instruments at the same height.

After the step S43, the vertical heights of the adjacent chuck calibration mechanisms on the machine tool platform are adjusted to be consistent, and then the preparation for adjusting the horizontal positions of the adjacent chuck calibration mechanisms on the machine tool platform is started in S44.

In this step, the two sliders 810 are all clamped in the horizontal slide rail 710 of the machine tool platform, and the measuring rod of the second dial indicator 830 in the second measuring instrument 800 is horizontally disposed, that is, the measuring head at the end of the measuring rod horizontally abuts against and contacts the circumferential surface of the calibration rod 300. The measuring bars of the two second dial indicators 830 are arranged at the same vertical height relative to the machine tool platform and extend the same distance relative to the horizontal sliding rail 710.

And S45, adjusting the horizontal position of any one of the adjacent chuck correcting mechanisms on the corresponding machine tool head, so that the indicating values of the two second measuring instruments are consistent.

When the vertical heights of the two chuck correcting mechanisms on the machine tool platform are adjusted to be consistent, the measuring heads of the two second dial indicators 830 with the same height and the consistent horizontal extending distance should have the same distance from the surfaces of the two correcting rods 300 of the chuck correcting mechanisms, so when the values of the two second dial indicators 830 horizontally abutted and contacted on the surfaces of the correcting rods 300 are inconsistent, the horizontal distances from the two correcting rods 300 to the corresponding second dial indicators 830 are inconsistent, and therefore, the horizontal position of the substrate 110 in one of the chuck correcting mechanisms on the machine tool head 600 needs to be adjusted until the values of the two second dial indicators 830 are consistent.

And S46, repeating the steps to respectively carry out correction operation on adjacent chuck correction mechanisms on the machine tool platform.

The principles and embodiments of the present application are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present application, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments, or may be learned by practice of the invention.

Claims (8)

1. A chuck calibration mechanism comprising a support structure, a pair of chucks (200), a calibration rod (300), and a pair of first gauges (400); a pair of said chucks (200) are disposed on both sides of said support structure, said chucks (200) being disposed with the central axis horizontal; a plurality of clamping jaws (500) distributed circumferentially are arranged on the chuck (200), and the clamping jaws (500) can move along the radial direction of the chuck (200); the correcting rod (300) penetrates through the pair of chucks (200) and is clamped and fixed through the clamping jaws (500); a pair of the first measuring instruments (400) are arranged at two ends of the school rod (300), and the first measuring instruments (400) are used for measuring the levelness of the school rod (300) extending to the outer side of the clamping jaws (500).

2. The chuck calibration mechanism according to claim 1, wherein the support structure comprises a base plate (110) horizontally disposed and a support plate (120) vertically disposed on the base plate (110), a pair of the chucks (200) are disposed on two sides of the support plate (120), a first through hole (210) is disposed in the middle of the chuck (200), a second through hole is disposed on the support plate (120) corresponding to the first through hole (210), and the calibration rod (300) penetrates through the first through hole (210) and the second through hole and is clamped and fixed on the pair of chucks (200).

3. The chuck calibration mechanism according to claim 2, wherein the chuck (200) is provided with a first groove (220) corresponding to the jaw (500) along a radial direction, one side of the jaw (500) is clamped in the first groove (220), the jaw (500) is provided with a threaded hole corresponding to the first groove (220), and a first bolt (510) penetrating through the threaded hole fixes the jaw (500) in the first groove (220).

4. The chuck calibration mechanism according to claim 3, wherein a sleeve (520) is fixed to a side of the jaws (500) away from the first recess (220), the sleeve (520) is provided with an internal thread, a second bolt (530) which is engaged with the sleeve (520) in a threaded manner and is movable in a radial direction of the chuck (200) is provided on the sleeve (520), and each second bolt (530) which is movable in the radial direction of the chuck (200) clamps and fixes one end of the calibration rod (300) between the jaws (500) of one of the chucks (200).

5. A machine tool concentricity calibration arrangement, comprising a plurality of chuck calibration mechanisms according to any one of claims 1 to 4, each of the chuck calibration mechanisms being arranged on a machine tool head (600), the machine tool head (600) being movably secured to a machine tool platform, the machine tool platform being provided with a slide rail (710), a second slidable gauge (800) being arranged in the slide rail (710) for each of the chuck calibration mechanisms, the second gauge (800) being adapted to measure the position of a calibration rod (300) of the chuck calibration mechanism on the machine tool platform.

6. The machine tool concentricity calibration device according to claim 5, wherein a second groove is provided on the machine tool head (600) corresponding to the chuck calibration mechanism, the second groove extends in a direction perpendicular to the slide rail (710), and the chuck calibration mechanism is fixed on the machine tool head (600) by a screw (610) fixed in the second groove.

7. The machine tool concentricity correction device according to claim 5, wherein the second measuring instrument (800) comprises a slider (810), a second support rod (820) and a second dial indicator (830), the slider (810) is slidably clamped in the slide rail (710), the second support rod (820) is fixed on the slider (810), the second dial indicator (830) is arranged at one end of the second support rod (820) far away from the slide rail (710), and a measuring head of the second dial indicator (830) is in abutting contact with the surface of the corresponding calibration rod (300).

8. The machine tool concentricity correction device according to claim 5, wherein a drive motor is provided between the machine tool head (600) and the machine tool platform, and the drive motor drives the machine tool head (600) to move up and down on the machine tool platform.

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