CN110757252A - Wheel machining anti-collision device and method - Google Patents

Wheel machining anti-collision device and method Download PDF

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Publication number
CN110757252A
CN110757252A CN201911072157.4A CN201911072157A CN110757252A CN 110757252 A CN110757252 A CN 110757252A CN 201911072157 A CN201911072157 A CN 201911072157A CN 110757252 A CN110757252 A CN 110757252A
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CN
China
Prior art keywords
wheel
wheel blank
rim
laser displacement
displacement sensor
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Pending
Application number
CN201911072157.4A
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Chinese (zh)
Inventor
蔡卫民
郭建东
柴志强
杜海东
刘啸
李松
梁邦顺
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Citic Dicastal Co Ltd
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Citic Dicastal Co Ltd
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Priority to CN201911072157.4A priority Critical patent/CN110757252A/en
Publication of CN110757252A publication Critical patent/CN110757252A/en
Pending legal-status Critical Current

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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
    • B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
    • 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
    • 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
    • B23Q17/002—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders
    • B23Q17/003—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders by measuring a position
    • 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
    • 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
    • B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
    • B23Q17/2452—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for measuring features or for detecting a condition of machine parts, tools or workpieces
    • B23Q17/2471—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for measuring features or for detecting a condition of machine parts, tools or workpieces of workpieces

Abstract

The application relates to the technical field of machining, in particular to a wheel machining anti-collision device and a method.

Description

Wheel machining anti-collision device and method
Technical Field
The application relates to the technical field of machining, in particular to machining of an aluminum wheel, and specifically relates to a wheel machining anti-collision device and method.
Background
The existing aluminum wheel machining unit adopts a manual mode to replace wheel types, the situation that the replaced wheel types do not correspond to the preset wheel types exists due to the fact that part of the wheel types are similar in modeling, the clamping deflection risk exists for blanks due to the fact that aluminum scraps are padded in a clamp, the program preset program is directly called to machine after the wheel type blanks are replaced at present, the risk that actual blanks do not correspond to theoretical blanks exists, a cutter is machined according to the preset program, the cutter collision risk exists in the quick positioning process, serious damage is caused to a machine tool and a cutter tower, and the subsequent machining precision is reduced.
Disclosure of Invention
The embodiment of the application provides a wheel machining anti-collision device and method, the outer contour of a wheel blank can be scanned by using a laser displacement sensor after the wheel blank is installed in a clamping mode, if the clamping deflection is judged, a machine tool gives an alarm, the reason is further analyzed, and the problem of tool collision is fundamentally avoided.
In order to achieve the purpose, the invention provides the following technical scheme:
the first aspect provides a wheel processing anti-collision device which comprises a chuck plate, wherein the chuck plate is used for placing and clamping a wheel blank, the chuck plate is fixed on a main shaft of a machine tool, and the chuck plate can rotate along with the main shaft of the machine tool and drive the wheel blank to rotate; still include linear module, sensor mount pad, laser displacement sensor, the perpendicular (holding) chuck of linear module sets up in one side of wheel blank, and fixed mounting has the sensor mount pad on the sliding part of linear module, and laser displacement sensor installs on the sensor mount pad, and laser displacement sensor scans the rim position of wheel blank along with the vertical upper and lower slip of sliding part of linear module.
In some embodiments of the present application, the wheel machining collision avoidance device further includes a radial positioning block, an axial positioning block, and a plurality of pressing claws, and a plurality of radial positioning blocks, a plurality of axial positioning blocks, and a plurality of pressing claws are uniformly and fixedly disposed on the circumference of the chuck.
In some embodiments of the present application, the pressure jaw is an angle cylinder pressure jaw.
In some embodiments of the present application, the radial locating block and the axial locating block are both detachably fixed to the chuck, and the fixing positions of the radial locating block and the axial locating block on the chuck are adjustable according to the size of the wheel blank.
In a second aspect, an embodiment of the present application provides a wheel machining collision avoidance method for a wheel machining collision avoidance apparatus described in any one of the above embodiments, including the following steps: clamping the wheel blank on a chuck; the machine tool spindle drives the chuck plate and the wheel blank on the chuck plate to rotate, the laser displacement sensor vertically slides up and down along with the sliding part of the linear module, and the rim part of the wheel blank is scanned; and comparing the scanning data with the theoretical data one by one, wherein the error between each scanning data and the corresponding theoretical data does not exceed a set value, starting the machine tool machining, and otherwise, giving an alarm.
In some embodiments, the wheel blank is fixed, the laser displacement sensor slides upwards or downwards along the sliding part of the linear module at equal intervals vertically, and the distance values of a plurality of measuring points on a vertical line on the rim of the wheel blank are measured; the wheel blank rotates for a certain angle and is fixed again, the laser displacement sensor slides upwards or downwards vertically at equal intervals along the sliding part of the linear module again, and the distance values of a plurality of measuring points on the other vertical line on the rim of the wheel blank are measured; and measuring the distance values of a plurality of measuring points on a plurality of vertical lines of the rim to complete the scanning of the rim part of the wheel blank.
In some embodiments, the laser displacement sensor is fixed in position, the wheel blank rotates for one circle, and the laser displacement sensor measures distance values of a plurality of measuring points on the circumference of a rim of the wheel blank; the laser displacement sensor vertically slides upwards or downwards along with the sliding part of the linear module at certain intervals and is fixed in position, the wheel blank rotates for a circle again, and the laser displacement sensor measures the distance values of a plurality of measuring points on the other circumference of the wheel blank rim; and measuring the distance values of a plurality of measuring points on a plurality of circumferences of the wheel blank rim to complete the scanning of the rim part of the wheel blank.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a wheel machining anti-collision device and a wheel machining anti-collision method.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view of a wheel machining collision prevention device according to the present application.
Fig. 2 is a schematic view of fixing a wheel blank of the collision preventing device for wheel machining according to the present application.
Fig. 3 is a flow chart of a wheel machining collision avoidance method of a wheel machining collision avoidance apparatus of the present application.
Wherein: 1-chuck, 2-radial positioning block, 3-linear module, 4-sensor mounting seat, 5-laser displacement sensor, 6-machine tool side wall, 7-wheel blank, 8-cutter, 9-pressing claw and 10-axial positioning block.
Detailed Description
The terms "first," "second," "third," and "fourth," etc. in the description and claims of this application and in the accompanying drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
In a first aspect, an embodiment of the present invention provides an anti-collision device for wheel machining, including a chuck plate, the chuck plate being used for placing and clamping a wheel blank, the chuck plate being fixed on a spindle of a machine tool, the chuck plate being capable of rotating along with the spindle of the machine tool and driving the wheel blank to rotate; still include linear module, sensor mount pad, laser displacement sensor, the perpendicular (holding) chuck of linear module sets up in one side of wheel blank, and fixed mounting has the sensor mount pad on the sliding part of linear module, and laser displacement sensor installs on the sensor mount pad, and laser displacement sensor scans the rim position of wheel blank along with the vertical upper and lower slip of sliding part of linear module. Set up (holding) chuck, linear module, laser displacement sensor in this embodiment, linear module drives the laser displacement sensor and slides from top to bottom, utilizes laser displacement sensor to scan blank outline, utilizes laser displacement sensor to measure the distance of laser emission head and wheel blank rim, converts measured data into the profile information of blank rim, and then judges the clamping state of this wheel blank, avoids hitting the emergence of sword accident. Wherein linear module is a linear transmission, mainly has two kinds of modes: one is composed of ball screw and linear guide track, and the other is composed of synchronous belt and synchronous belt wheel. The linear module has wide application range, convenient installation and high precision, is accepted by vast users, and saves the specific link of a mechanism for making linear motion by the user.
In one embodiment of the application, the wheel machining anti-collision device further comprises a radial positioning block, an axial positioning block and a pressing claw, wherein a plurality of radial positioning blocks, a plurality of axial positioning blocks and a plurality of pressing claws are uniformly and fixedly arranged on the circumference of the chuck. Before the wheel is machined, the specific position of the wheel in the fixture needs to be determined, and the degree of freedom of the wheel is restrained, which is called as wheel alignment. The outer cylindrical surface of the blank wheel lip is radially positioned by a radial positioning block, and the degree of freedom of the radial position of the blank wheel lip is restricted (namely the blank wheel lip is limited to move left and right in front and back). The end face of the wheel lip of the blank is axially positioned by an axial positioning block, and the degree of freedom of the axial position of the blank is restrained (namely, the blank is limited to move up and down). A plurality of radial locating piece of equipartition carry out radial positioning to the wheel blank in this application embodiment, and a plurality of axial locating piece of equipartition carry out axial positioning to the wheel blank, fix a position the wheel blank on the (holding) chuck, are difficult for taking place the horizontally removal.
In one embodiment of the present application, the pressure jaw is an angle cylinder pressure jaw. In the embodiment, the corner cylinder pressing claw is adopted, and the wheel blank is clamped and fixed by the pressing claw.
In one embodiment of the application, the radial positioning block and the axial positioning block are detachably fixed on the chuck, and the fixing positions of the radial positioning block and the axial positioning block on the chuck can be adjusted according to the size of the wheel blank. In this embodiment, the positions of the radial positioning block and the axial positioning block can be adjusted according to the size of the wheel blank, so that the wheel blank is suitable for wheels with different diameters, and the universality of the equipment is improved.
In a second aspect, an embodiment of the present application provides a wheel machining collision avoidance method for a wheel machining collision avoidance apparatus described in any one of the above embodiments, including the following steps: clamping the wheel blank on a chuck; the machine tool spindle drives the chuck plate and the wheel blank on the chuck plate to rotate, the laser displacement sensor vertically slides up and down along with the sliding part of the linear module, and the rim part of the wheel blank is scanned; and comparing the scanning data with the theoretical data one by one, wherein the error between each scanning data and the corresponding theoretical data does not exceed a set value, starting the machine tool machining, and otherwise, giving an alarm. In this embodiment, the set value needs to be manually determined according to the actual processing state, for example, if the machined blank has good consistency, the set value of the error may be set to be small, such as 0.1mm, and if the machined blank has poor consistency, the set value range of the error may be enlarged, such as 0.2 mm. For theoretical data of measurement points of a batch of wheels, after the wheels are installed and clamped, the wheels are checked to have no model errors or no problem of installation, and then the wheel machining anti-collision device is started to perform one-time measurement to be used as the theoretical data. In the embodiment, after the blank is clamped, the outer contour of the blank is scanned by using the laser sensor, the scanning data and the corresponding theoretical data are compared one by one, if the error exceeds a set value, the machine tool gives an alarm, the reason is further analyzed, and the problem of tool collision is fundamentally avoided.
In one embodiment of the application, the wheel blank is fixed, the laser displacement sensor slides upwards or downwards along with the sliding part of the linear module at equal intervals, and the distance values of a plurality of measuring points on a vertical line on the rim of the wheel blank are measured; the wheel blank rotates for a certain angle and is fixed again, the laser displacement sensor slides upwards or downwards vertically at equal intervals along the sliding part of the linear module again, and the distance values of a plurality of measuring points on the other vertical line on the rim of the wheel blank are measured; and measuring the distance values of a plurality of measuring points on a plurality of vertical lines of the rim to complete the scanning of the rim part of the wheel blank. In the embodiment, a scanning method of a wheel blank is provided, in which a laser displacement sensor measures distance values of a plurality of measurement points on a plurality of vertical lines of a rim to complete scanning of a rim portion of the wheel blank.
In one embodiment of the application, the laser displacement sensor is fixed in position, the wheel blank rotates for one circle, and the laser displacement sensor measures distance values of a plurality of measuring points on the circumference of a rim of the wheel blank; the laser displacement sensor vertically slides upwards or downwards along with the sliding part of the linear module at certain intervals and is fixed in position, the wheel blank rotates for a circle again, and the laser displacement sensor measures the distance values of a plurality of measuring points on the other circumference of the wheel blank rim; and measuring the distance values of a plurality of measuring points on a plurality of circumferences of the wheel blank rim to complete the scanning of the rim part of the wheel blank. In the embodiment, another scanning method for a wheel blank is provided, in which a laser displacement sensor measures distance values of a plurality of measuring points on a plurality of circumferences of a rim of the wheel blank to complete scanning of the rim portion of the wheel blank.
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Example 1:
embodiment 1 of the present application is described below with reference to fig. 1 to 3 of the specification, and a wheel machining collision avoidance apparatus includes a chuck 1, a radial positioning block 2, a linear module 3, a sensor mounting seat 4, a laser displacement sensor 5, a machine tool side wall 6, a pressing claw 9, and an axial positioning block 10.
The chuck 1 is used for placing and clamping the wheel blank 7, the chuck 1 is fixed on a main shaft of a machine tool, and the chuck 1 can rotate along with the main shaft of the machine tool and drive the wheel blank 7 to rotate. The linear module 3 is installed on the lathe lateral wall 6, the perpendicular (holding) chuck 1 of linear module 3 sets up in one side of wheel blank 7, fixed mounting has sensor mount pad 4 on the sliding part of linear module 3, laser displacement sensor 5 installs on sensor mount pad 4, laser displacement sensor 5 measures the distance of laser emission head and wheel blank rim, laser displacement sensor 5 scans the rim position of wheel blank 7 along with the vertical upper and lower slip of sliding part of linear module. The laser sensor adopted at this time is a ZX2-LD100 point beam laser sensor of an ohm dragon manufacturer, the measuring range is 100mm +/-35 mm, and other laser displacement sensors can be used for replacing the laser sensor. As can be seen from fig. 1-2 in the specification, 3 radial positioning blocks 2, 3 axial positioning blocks 10 and 3 pressing claws 9 are uniformly and fixedly arranged on the circumference of the chuck 1, the radial positioning blocks 2 and the axial positioning blocks 10 are detachably fixed by matching bolts with bolt holes formed in the chuck 1, a plurality of bolt holes are formed in each fixing position and extend along the radial direction of the chuck 1, and the fixing positions of the radial positioning blocks 2 and the axial positioning blocks 9 on the chuck can be adjusted according to the size of the wheel blank 7. When the diameter of the wheel blank 7 is larger, the radial positioning block 2 and the axial positioning block 9 can be outwards fixed along the bolt hole on the radius of the chuck 1; when the diameter of the wheel blank 7 is smaller, the radial positioning block 2 and the axial positioning block 9 can be inwards fixed along the bolt hole on the radius of the chuck 1. The pressing claw 9 is a corner cylinder pressing claw and is fixed on the upper surface of the chuck through a corner cylinder seat. The outer cylindrical surface of the wheel lip of the wheel blank is radially positioned by the radial positioning block 2, the degree of freedom of the radial position of the wheel lip is restricted, namely the wheel lip is restricted from moving left and right in the front and back direction, and the end surface of the wheel lip of the wheel blank is axially positioned by the axial positioning block 10, the degree of freedom of the axial position of the wheel lip is restricted, namely the wheel lip is restricted from moving up and down. The wheel blank 7 is placed on a chuck 1, three radial positioning blocks 2 are uniformly distributed on the chuck 1, radial positioning is carried out by the radial positioning blocks 2, three axial positioning blocks 10 are uniformly distributed on the chuck 1, axial positioning is carried out by the axial positioning blocks 10, three pressing claws 9 are uniformly distributed on the chuck 1, and pressing claws 9 are utilized to compress tightly.
When the wheel blank positioning and clamping device is used in practice, after the wheel blank is positioned and clamped, the machine tool spindle drives the wheel blank 7 to rotate through the chuck plate 1, the linear module 3 drives the laser displacement sensor 5 to move along the machine tool spindle from top to bottom to complete data scanning of the wheel blank 7, a scanning area is a rim area of the wheel blank 7, the laser displacement sensor 5 transmits a scanning result to a machine tool, the machine tool compares the scanning data with corresponding theoretical data and analyzes and judges to judge a result, if the profile degree is within a preset range, the cutter 8 processes according to a set program, if the profile degree exceeds the preset range, the machine tool alarms to stop processing, the reason is further analyzed, and the cutter collision is avoided. The "profile degree" refers to a variation of the measured actual profile from the ideal profile. The method is used for describing the accuracy of the curved surface or the curve shape, and the degree of difference between scanning data and theoretical data is expressed by the profile tolerance. The preset range needs to be manually determined according to the actual processing state, for example, if the consistency of the wheel blank is good, the profile tolerance can be set to be small, such as 0.1mm, and if the consistency of the wheel blank is poor, the profile tolerance range can be enlarged, such as 0.2 mm.
The specific wheel machining anti-collision method of the wheel machining anti-collision device comprises the following steps:
s01: clamping the wheel blank 7 on the chuck plate 1;
s02: the machine tool spindle drives the chuck plate 1 and the wheel blank 7 on the chuck plate 1 to rotate, the laser displacement sensor 5 vertically slides up and down along with the sliding part of the linear module, and the rim part of the wheel blank 7 is scanned;
s03: comparing the scanning data with the theoretical data one by one, judging results, starting machine tool machining when the error of each scanning data and the corresponding theoretical data does not exceed a set value, and otherwise, alarming.
Wherein the following scanning method is employed in step S02: the wheel blank 7 is fixed, the laser displacement sensor 5 slides upwards or downwards along with the sliding part of the linear module 3 at equal intervals, and the distance values of a plurality of measuring points on a vertical line on the rim of the wheel blank 7 are measured; the wheel blank 7 rotates for a certain angle and is fixed again, the laser displacement sensor 5 slides upwards or downwards vertically along with the sliding part of the linear module 3 at equal intervals again, and the distance values of a plurality of measuring points on the other vertical line on the rim of the wheel blank 7 are measured; and measuring the distance values of a plurality of measuring points on a plurality of vertical lines of the rim to complete the scanning of the rim part of the wheel blank.
In order to ensure the accuracy of the scanning result, the design of the measuring points preferably considers that the measuring points should be uniformly distributed at the rim, a plurality of vertical lines can be uniformly distributed on the circumference with equal intervals, and meanwhile, the number of the selected points on each vertical line is equal, and the intervals are equal. For example, in some embodiments 4 measurement points equally spaced on 4 vertical lines 90 degrees apart may be selected to complete the scan.
Example 2:
the difference between example 2 and example 1 is that: the scanning methods of the laser displacement sensor measurement are different. Specifically, in example 2, the following scanning method was used: the laser displacement sensor 5 is fixed in position, the wheel blank 7 rotates for a circle, and the laser displacement sensor 5 measures distance values of a plurality of measuring points on the circumference of a rim of the wheel blank; the laser displacement sensor 5 vertically slides upwards or downwards along with the sliding part of the linear module 3 at a certain interval and is fixed in position, the wheel blank 7 rotates for a circle again, and the laser displacement sensor 5 measures the distance values of a plurality of measuring points on the other circumference of the wheel blank rim; and measuring the distance values of a plurality of measuring points on a plurality of circumferences of the wheel blank rim to complete the scanning of the rim part of the wheel blank.
In order to ensure the accuracy of the scanning result, the design of the measuring points preferably considers that the measuring points are uniformly distributed at the rim, a plurality of circles can be uniformly arranged at the rim of the wheel at equal intervals, and a plurality of uniformly distributed measuring points with equal interval angles can be selected on each circle. For example, 4 circles may be chosen which are evenly distributed at the rim, with 4 measuring points spaced 90 degrees apart on each circle.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (7)

1. The anti-collision device for wheel machining is characterized by comprising a chuck plate, wherein the chuck plate is used for placing and clamping a wheel blank, the chuck plate is fixed on a main shaft of a machine tool, and the chuck plate can rotate along with the main shaft of the machine tool and drive the wheel blank to rotate; still include linear module, sensor mount pad, laser displacement sensor, the perpendicular (holding) chuck of linear module sets up in one side of wheel blank, and fixed mounting has the sensor mount pad on the sliding part of linear module, and laser displacement sensor installs on the sensor mount pad, and laser displacement sensor scans the rim position of wheel blank along with the vertical upper and lower slip of sliding part of linear module.
2. The wheel machining anti-collision device is characterized by further comprising radial positioning blocks, axial positioning blocks and pressing claws, wherein the plurality of radial positioning blocks, the plurality of axial positioning blocks and the plurality of pressing claws are uniformly and fixedly arranged on the circumference of the chuck.
3. The anti-collision device for machining wheels according to claim 2, wherein the pressure claws are corner cylinder pressure claws.
4. The wheel machining collision avoidance device of claim 2, wherein the radial locating block and the axial locating block are both detachably fixed to the chuck, and the fixing positions of the radial locating block and the axial locating block to the chuck are adjustable according to the size of the wheel blank.
5. A wheel machining collision avoidance method for a wheel machining collision avoidance apparatus according to any one of claims 1 to 4, comprising the steps of:
clamping the wheel blank on a chuck;
the machine tool spindle drives the chuck plate and the wheel blank on the chuck plate to rotate, the laser displacement sensor vertically slides up and down along with the sliding part of the linear module, and the rim part of the wheel blank is scanned;
and comparing the scanning data with the theoretical data one by one, wherein the error between each scanning data and the corresponding theoretical data does not exceed a set value, starting the machine tool machining, and otherwise, giving an alarm.
6. The wheel machining collision avoidance method of claim 5 wherein the wheel blank is stationary and the laser displacement sensor slides vertically up or down with the slide of the linear module at equal intervals to measure the distance values of a plurality of measurement points on a vertical line on the rim of the wheel blank; the wheel blank rotates for a certain angle and is fixed again, the laser displacement sensor slides upwards or downwards vertically at equal intervals along the sliding part of the linear module again, and the distance values of a plurality of measuring points on the other vertical line on the rim of the wheel blank are measured; and measuring the distance values of a plurality of measuring points on a plurality of vertical lines of the rim to complete the scanning of the rim part of the wheel blank.
7. The wheel machining anti-collision method according to claim 5, wherein the laser displacement sensor is fixed in position, the wheel blank rotates for one circle, and the laser displacement sensor measures distance values of a plurality of measuring points on the circumference of a rim of the wheel blank; the laser displacement sensor vertically slides upwards or downwards along with the sliding part of the linear module at certain intervals and is fixed in position, the wheel blank rotates for a circle again, and the laser displacement sensor measures the distance values of a plurality of measuring points on the other circumference of the wheel blank rim; and measuring the distance values of a plurality of measuring points on a plurality of circumferences of the wheel blank rim to complete the scanning of the rim part of the wheel blank.
CN201911072157.4A 2019-11-05 2019-11-05 Wheel machining anti-collision device and method Pending CN110757252A (en)

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CN112475330A (en) * 2020-11-24 2021-03-12 长春伦艺机电设备有限公司 Vertical lathe device for machining spoke bottom plane of wheel assembly

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Application publication date: 20200207