WO2017016046A1 - 基于电涡流的自动化钢球检测设备 - Google Patents

基于电涡流的自动化钢球检测设备 Download PDF

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Publication number
WO2017016046A1
WO2017016046A1 PCT/CN2015/088747 CN2015088747W WO2017016046A1 WO 2017016046 A1 WO2017016046 A1 WO 2017016046A1 CN 2015088747 W CN2015088747 W CN 2015088747W WO 2017016046 A1 WO2017016046 A1 WO 2017016046A1
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eddy current
steel ball
driving device
turntable
detecting
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PCT/CN2015/088747
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English (en)
French (fr)
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李方
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李方
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Publication of WO2017016046A1 publication Critical patent/WO2017016046A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents

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  • the invention relates to the technical field of steel ball detecting devices, in particular to an automatic steel ball detecting device based on eddy current testing.
  • High-precision steel balls such as high-speed steel, aerospace, high-end automobiles and high-precision CNC equipment, are still dominated by countries with advanced production processes and testing technologies.
  • the domestic steel ball production enterprises have the technical strength to produce high-end steel balls through continuous technological innovation, but they are subject to the backward steel ball testing equipment and technology, and cannot compete in the high-end steel ball competition in the international market. in.
  • Steel ball inspection includes steel ball surface defect detection and steel ball internal compactness flaw detection.
  • Steel ball surface defect detection generally adopts machine vision method, that is, detection of steel ball surface defects by image recognition, such as a kind of "steel ball” disclosed in CN101430290B
  • the surface defect detecting device" and “a machine vision-based steel ball sorting device and method” disclosed in CN102658266B use machine vision to detect the surface defects of the steel ball, and the machine vision detection accuracy can reach 0.04 mm or more.
  • the detection accuracy of the internal flaw detection of the detector is high, since the meridian wheel is made of cemented carbide, when the steel ball is unfolded, the meridian wheel and the steel ball will closely rub against the steel ball surface, so the detection is only It can detect the semi-finished ball, and it will increase the process of the steel ball production enterprise.
  • the meridian wheel itself is also a consumable part, the service life is short, and the cost is high, which leads to high use and maintenance cost of the steel ball production enterprise. Steel ball manufacturers rarely detect flaws inside the steel ball.
  • Another problem is how to improve the detection efficiency under the premise of ensuring the accuracy of steel ball detection.
  • the annual output of steel balls is calculated in hundreds of millions of grains. Therefore, the steel ball testing equipment is also required.
  • the object of the present invention is to provide an automatic steel ball detecting device based on eddy current, which detects the surface and internal defects of the steel ball, improves the detection efficiency, and reduces the use and maintenance cost.
  • the present invention provides the following technical solutions:
  • An automatic steel ball detecting device based on eddy current comprising a feeding mechanism, a feeding turntable, a first driving device, a developing turntable, a second driving device, a tray, a slider, a guide rail, a screw rod, a third driving device, and electricity
  • the eddy current probe, the eddy current detector and the discharging mechanism have a plurality of detecting chambers on the feeding turntable, the feeding mechanism is connected with the detecting chamber, the first driving device drives the feeding turntable to rotate, and the developing turntable and the tray are arranged on the feeding turntable.
  • the discharge mechanism is connected with the discharge port, the second driving device and the tray are fixedly disposed on the slider, the slider is slidably disposed on the guide rail, the screw rod and the slider thread are matched, and the third drive The device drives the screw to rotate, thereby driving the slider to move along the guide rail.
  • the eddy current probe is disposed above the feed dial and the unfolding dial and corresponds to the detecting chamber, and the eddy current probe Connect to the eddy current detector.
  • the first driving device is vertically connected with a rotating shaft, and the rotating shaft is sleeved with a sleeve that can be adjusted along the upper and lower sides thereof, and the feeding turntable is fixedly connected with the sleeve.
  • the sleeve is coupled with the rotating shaft for adjusting the height of the feed dial relative to the unwinding dial to adapt the feed dial to different steel balls to be inspected.
  • the eddy current probes are plural, and the plurality of eddy current probes simultaneously correspond to one detection cavity or respectively correspond to a plurality of detection cavities.
  • the program can perform multiple inspections on the steel balls to be inspected to ensure the accuracy of the test results.
  • the plurality of detection chambers are circumferentially equally divided, and the plurality of detection chambers are arranged in a plurality of concentric circles, and at least one of the eddy current probes is disposed on each circumference of the circumference.
  • the solution sets a plurality of detection stations on the feed carousel, and the plurality of detection stations are synchronously detected to improve the detection efficiency.
  • the discharge end of the discharge mechanism is also connected with a sorting device, and the sorting device sorts the detected steel balls according to the detection conclusion of the eddy current detector, so as to select an unqualified steel ball to be inspected.
  • the first driving device, the second driving device and the third driving device are all stepping servo motors, which are convenient for PLC programming control and have high driving precision.
  • the unfolding turntable is flush with the upper end surface of the tray to prevent the steel ball from scratching the steel ball when entering the tray from the unfolding turntable or entering the unfolding turntable from the tray.
  • the invention adopts an eddy current method to simultaneously detect the surface and internal defects of the steel ball, wherein the unfolding turntable is rotated circumferentially under the driving of the second driving device, and the unfolding turntable is horizontally moved under the driving of the third driving device, The circular rotation and the horizontal movement of the turntable move the steel ball to be inspected completely in the detection cavity corresponding to the eddy current probe.
  • the eddy current probe is used to detect the steel ball (spherical object)
  • the detected range is the spherical body part of the steel ball to be inspected, and when the rotating steel ball is rotated for circumferential rotation, the steel ball to be inspected is rolled.
  • the detection efficiency and the detection precision of the invention are greatly improved, and the structure is simple and reasonable, no expensive wearing parts are available, and the maintenance cost is low, and can be used as an upgrade substitute for the existing machine vision-based steel ball detecting equipment. product.
  • Figure 1 is a schematic top plan view of the present invention.
  • FIG. 2 is a schematic cross-sectional view of the A-A of FIG. 1.
  • Figure 3 is a schematic perspective view of the present invention.
  • Figure 4 is a schematic view showing the structure of another preferred feed carousel of the present invention.
  • an eddy current-based automatic steel ball detecting device includes a feeding mechanism 1, a feed carousel 2, a first driving device 3, a developing carousel 4, a second driving device 5, and a tray 6.
  • the feeding turntable 2 is provided with a plurality of detecting chambers 13, and the feeding mechanism 1 is connected with the detecting chamber 13, the first drive
  • the moving device 3 drives the feed carousel 2 to rotate, and the unfolding turntable 4 and the tray 6 are disposed below the feed carousel 2.
  • the second driving device 5 drives the unfolding turntable 4 to rotate
  • the tray 6 is provided with a discharge opening 14 corresponding to the detecting chamber 13 on the feeding turntable 2, the discharging mechanism 12 and the discharging opening 14
  • the second driving device 5 and the tray 6 are fixedly disposed on the slider 7, the slider 7 is slidably disposed on the guide rail 8, the screw rod 9 is screwed with the slider 7, and the third driving device 10 drives the screw rod 9 to rotate.
  • the driving slider 7 is moved along the guide rail 8, and the eddy current probe 11 is disposed above the feeding turntable 2 and the unfolding turntable 4 and corresponding to the detecting chamber 13, and the eddy current probe 11 is connected to the eddy current detector.
  • the eddy current-based automatic steel ball detecting device simultaneously detects the surface and internal defects of the steel ball by means of eddy current, wherein the unwinding turntable 4 is rotated circumferentially under the driving of the second driving device 5, and the unfolding turntable 4 is still in the third
  • the horizontal movement of the driving device 10 is performed, and the steel ball to be inspected is tilted in the detection chamber 13 corresponding to the eddy current probe 11 by the circumferential rotation and the horizontal movement of the unfolding turntable 4.
  • the detected range is the spherical body portion of the steel ball to be inspected, and when the rotating wheel 4 is rotated for circumferential rotation of the steel ball to be inspected, the steel ball to be inspected is rolled for one week.
  • the steel ball to be inspected is orthogonally rolled to the next longitude range to be inspected, so that the reciprocating force makes the eddy current probe 11
  • the inspection of the steel ball is performed on a plurality of different longitude ranges to ensure complete coverage of the entire sphere of the steel ball to be inspected by the eddy current probe 11.
  • the eddy current-based automatic steel ball detecting device selects a driving mechanism composed of the screw 9, the slider 7 and the guide rail 8 to ensure accurate and stable translation of the unfolding turntable 4 while smoothly rotating.
  • the first driving device 3 is vertically connected with a rotating shaft 15 , and the rotating shaft 15 is sleeved with a sleeve 16 which can be adjusted along the upper and lower sides thereof, and the feeding turntable 2 is fixedly connected with the sleeve 16 .
  • the eddy current probes 11 are plural, and the plurality of eddy current probes 11 simultaneously correspond to one detection chamber 13 or respectively correspond to the plurality of detection chambers 13.
  • the program can perform multiple inspections on the steel balls to be inspected to ensure the accuracy of the test results.
  • two symmetrically arranged eddy current probes 11 are disposed obliquely with respect to the detection chamber 13 at an angle of 45 degrees, and the two eddy current probes 11 simultaneously detect the same steel ball to be inspected, and further, one of them may be
  • the eddy current probe 11 is provided as a laser probe (not shown), and the laser beam emitted from the laser probe is irradiated onto the surface of the steel ball to be inspected and then reflected by the laser receiver of the laser probe, and the laser detector is used to receive the reflection according to the laser probe. The laser beam is used to judge whether the surface of the steel ball has defects.
  • the laser probe and the eddy current probe 11 are all high-precision detecting sensors, and the laser probe is limited to detecting surface defects of the steel ball to be inspected; or in the two adjacent detecting chambers 13 One or more eddy current probes 11 are respectively disposed on the upper side, and the two eddy current probes 11 respectively detect the two steel balls to be inspected simultaneously, that is, the steel balls to be inspected are respectively tested twice.
  • a plurality of detection chambers 13 are circumferentially equally divided, and a plurality of detection chambers 13 are arranged in a plurality of concentric circumferences, and at least one of the eddy current probes 11 is disposed on each circumference.
  • the diameters of the detecting chambers 13 on different circumferences may be the same or different.
  • the diameters of the detecting chambers 13 on different circumferences are the same, that is, a plurality of detecting stations are arranged on the feeding turntable 2, and the plurality of detecting stations are synchronously performed.
  • the detection can improve the detection efficiency; when the diameters of the detection chambers 13 on different circumferences are different, as shown in FIG. 4, the feed turntable 2 can be applied to the steel balls to be detected of different diameters, and only the relative rotation of the feed turntable 2 is adjusted.
  • the height of the turntable 4 can be detected without changing the feed dial 2, and its versatility is stronger.
  • the discharge end of the discharge mechanism 12 is also connected with a sorting device 17, and the sorting device 17 sorts the steel balls to be inspected according to the detection conclusion of the eddy current detector, so as to select unqualified steel balls to be inspected.
  • the first driving device 3, the second driving device 5 and the third driving device 10 are all stepping servo motors, which are convenient for PLC programming control and have high driving precision.
  • the unwinding turntable 4 is flush with the upper end surface of the tray 6, preventing the steel ball from scratching the steel ball when entering the tray 6 from the unfolding turntable 4 or entering the unfolding turntable 4 from the tray 6.
  • the steel ball to be inspected enters the detection chamber 13 of the feed carousel 1 one by one from the feeding mechanism 1, and the first driving device 3 drives the stepping turntable of the feed carousel 2, and the feed carousel 2 rotates by one step, the feeding mechanism 1
  • the feeding is completed once; when the gold feeding plate is stationary, the unfolding turntable 4 is circumferentially rotated by the driving of the second driving device 5, and the unwinding turntable 4 is also horizontally moved by the driving of the third driving device 10,
  • the third driving device 10 drives the screw 9 to rotate, and the screw rod 9 is screwed with the slider 7, so that when the screw rod 9 rotates, the slider 7 is moved by the limiting action of the guide rail 8 along the guide rail 8, and
  • the second driving device 5 and the tray 6 are both fixedly disposed on the slider 7, so that the second driving device 5, the unfolding turntable 4 and the tray 6 move integrally with the slider 7; the circular rotation and the horizontal movement of the unwinding dial 4 are used to move
  • the eddy current probe 11 During the unfolding of the steel ball to be inspected, the eddy current probe 11 always maintains the detection state, and transmits the detection data to the eddy current detector for analysis and processing. Eddy current detection A judgment signal is given as to whether the steel ball to be inspected is qualified.
  • the steel ball to be inspected is rotated with the feeding turntable 2 to the discharge port 14 of the tray 6, the steel ball to be inspected is dropped from the detecting chamber 13 to the discharging mechanism.
  • the sorting device 17 of 12 sorts the steel balls to be inspected according to the detection signal of the eddy current detector, and selects the unqualified steel balls to be inspected.

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Abstract

一种基于电涡流的自动化钢球检测设备，包括进料机构(1)、进给转盘(2)、第一驱动装置(3)、展开转盘(4)、第二驱动装置(5)、托盘(6)、滑块(7)、导轨(8)、丝杆(9)、第三驱动装置(10)、电涡流探头(11)、电涡流检测仪和出料机构(12)，进给转盘(2)上设有若干检测腔(13)，进料机构(1)与检测腔(13)连接，第一驱动装置(3)驱动进给转盘(2)转动，第二驱动装置(5)驱动展开转盘(4)转动，第二驱动装置(5)和托盘(6)均固定设置于滑块(7)上，滑块(7)滑动设置于导轨(8)上，丝杆(9)与滑块(7)螺纹配合，第三驱动装置(10)驱动丝杆(9)转动，电涡流探头(11)与电涡流检测仪连接。该设备检测效率和检测精度大幅提升，而且结构简单合理，无昂贵的易损件，维护成本较低，可作为现有的基于机器视觉的钢球检测设备的升级替代产品。

Description

基于电涡流的自动化钢球检测设备 技术领域
本发明涉及钢球检测设备技术领域，特别涉及一种基于电涡流检测的自动化钢球检测设备。
背景技术
高端钢球，例如高铁、航空、高档汽车和高精密数控设备等行业所需的高精密型钢球，现在仍然被具有先进生产工艺和检测技术的国家所垄断。国内的钢球生产企业通过不断的技术工艺革新，现已具备生产高端钢球的技术实力，然而却受制于较为落后的钢球检测设备及技术，而无法参与到国际市场的高端钢球的竞争中。
钢球检测包括钢球表面缺陷检测和钢球内部致密性探伤检测，钢球表面缺陷检测普遍采用机器视觉的方式，即通过图像识别对钢球表面缺陷检测，如CN101430290B公开的一种“钢球表面缺陷检测装置”以及CN102658266B公开的“一种基于机器视觉的钢球分拣装置和方法”，均采用机器视觉来检测钢球表面缺陷，采用机器视觉的检测精度可达0.04mm以上。
然而基于机器视觉的检测设备及技术仅适用于检测钢球的外观缺陷，对于钢球生产企业，亟需解决的问题是如何对钢球进行内部致密性探伤检测。钢球的内部材料组织结构直接影响钢球的使用寿命，因此对钢球内部探伤检测非常必要。目前国内外对钢球内部进行探伤检测的设备较少，仅捷克AVIKO公司研发了钢球检测设备，其利用电涡流探头与子午线展开轮的配合对钢球 进行内部探伤检测，虽然该检测仪内部探伤的检测精度较高，但是由于子午轮采用硬质合金制成，展开钢球时子午轮与钢球紧密摩擦会磨损钢球表面，因而该检测以仅能检测半成品球，还会增加钢球生产企业的工艺流程，而且子午轮本身也属于易耗件，使用寿命短，且造价较高，导致钢球生产企业的使用及维护成本较高，因此国内钢球生产企业少有对钢球内部进行探伤检测。
另外一个问题是，如何在保证钢球检测精度的前提下提升其检测效率，以国内中型钢球生产企业为例，一年的钢球产量以数亿粒计，因此还要求钢球检测设备还必须具有较搞的检测效率。
发明内容
本发明的目的在于针对现有技术的不足，提供一种基于电涡流的自动化钢球检测设备，对钢球表面及内部缺陷进行检测，提高检测效率，降低使用及维护成本。
为解决上述问题，本发明提供以下技术方案：
一种基于电涡流的自动化钢球检测设备，包括进料机构、进给转盘、第一驱动装置、展开转盘、第二驱动装置、托盘、滑块、导轨、丝杆、第三驱动装置、电涡流探头、电涡流检测仪和出料机构，进给转盘上设有若干检测腔，进料机构与检测腔连接，第一驱动装置驱动进给转盘转动，展开转盘和托盘设置于进给转盘的下方，当待检钢球位于进给转盘的检测腔内时，待检钢球的下端与展开转盘或托盘接触，第二驱动装置驱动展开转盘转动，托盘设有与进给转盘上的检测腔相对应的出料口，出料机构与该出料口连接，第二驱动装置和托盘均固定设置于滑块上，滑块滑动设置于导轨上，丝杆与滑块螺纹配合，第三驱动装置驱动丝杆转动，进而驱动滑块沿导轨移动，电涡流探头设置于进给转盘和展开转盘的上方并且与检测腔相对应，电涡流探头 与电涡流检测仪连接。
第一驱动装置竖直连接有转轴，该转轴上套设有可沿其上下调节定位的轴套，进给转盘与该轴套固定连接。通过轴套与转轴配合用于调节进给转盘相对展开转盘的高度，以使进给转盘适应不同的待检钢球。
所述电涡流探头为多个，该多个电涡流探头同时对应一个检测腔或者分别对应多个检测腔。该方案可对待检钢球进行多次复检，以确保检测结果的准确性。
所述若干检测腔呈圆周等分布置，所述若干检测腔呈多圈同心圆周布置，每圈圆周上设置有至少一个所述电涡流探头。该方案在进给转盘上设置多个检测工位，该多个检测工位同步进行检测，以提高检测效率。
出料机构的出料端还连接有分选装置，分选装置根据电涡流检测仪的检测结论来对待检测钢球进行分选，以便于挑选出不合格的待检钢球。
第一驱动装置、第二驱动装置和第三驱动装置均为步进式伺服电机，便于PLC编程控制，并且驱动精度较高。
展开转盘与托盘的上端面齐平，避免钢球在从展开转盘进入托盘或者从托盘进入展开转盘时划伤钢球。
与现有技术相比本发明的有益效果为：
本发明采用电涡流方式对钢球表面和内部缺陷同时进行检测，其中展开转盘在第二驱动装置的驱动下进行圆周转动，同时展开转盘还在第三驱动装置的驱动下进行水平移动，通过展开转盘的圆周转动和水平移动来搓动待检钢球在电涡流探头所对应的检测腔内完全展开。采用电涡流探头对待检钢球(球面物体)检测时，其所检测到的范围为待检钢球的球冠体部分，展开转盘对待检钢球进行圆周转动搓动时，待检钢球滚动一周即完成对待检钢球的 一个经度范围(即待检钢球上过圆心的圆环形范围)的检测，展开转盘对待检钢球进行水平移动搓动时，待检钢球正交滚动至下一个待检经度范围处，如此往复，使得电涡流探头对待检钢球进行多个不同经度范围的检测，从而确保电涡流探头对待检钢球整个球体的完全覆盖。与现有技术相比，本发明检测效率和检测精度大幅提升，而且结构简单合理，无昂贵的易损件，维护成本较低，可作为现有的基于机器视觉的钢球检测设备的升级替代产品。
附图说明
图1为本发明的俯视结构示意图。
图2为图1中A-A剖视结构示意图。
图3为本发明的立体结构示意图。
图4为本发明另一优选的进给转盘的结构示意图。
附图标记说明：1.进料机构，2.进给转盘，3.第一驱动装置，4.展开转盘，5.第二驱动装置，6.托盘，7.滑块，8.导轨，9.丝杆，10.第三驱动装置，11.电涡流探头，12.出料机构，13.检测腔，14.出料口，15.转轴，16.轴套，17.分选装置。
具体实施方式
下面结合说明书附图和实施例，对本发明的具体实施方式做进一步详细描述：
参照图1至图4所示的一种基于电涡流的自动化钢球检测设备，包括进料机构1、进给转盘2、第一驱动装置3、展开转盘4、第二驱动装置5、托盘6、滑块7、导轨8、丝杆9、第三驱动装置10、电涡流探头11、电涡流检测仪(未图示)和出料机构12。
进给转盘2上设有若干检测腔13，进料机构1与检测腔13连接，第一驱 动装置3驱动进给转盘2转动，展开转盘4和托盘6设置于进给转盘2的下方，当待检钢球位于进给转盘2的检测腔13内时，待检钢球的下端与展开转盘4或托盘6接触，第二驱动装置5驱动展开转盘4转动，托盘6设有与进给转盘2上的检测腔13相对应的出料口14，出料机构12与该出料口14连接，第二驱动装置5和托盘6均固定设置于滑块7上，滑块7滑动设置于导轨8上，丝杆9与滑块7螺纹配合，第三驱动装置10驱动丝杆9转动，进而驱动滑块7沿导轨8移动，电涡流探头11设置于进给转盘2和展开转盘4的上方并且与检测腔13相对应，电涡流探头11与电涡流检测仪连接。
本基于电涡流的自动化钢球检测设备采用电涡流方式对钢球表面和内部缺陷同时进行检测，其中展开转盘4在第二驱动装置5的驱动下进行圆周转动，同时展开转盘4还在第三驱动装置10的驱动下进行水平移动，通过展开转盘4的圆周转动和水平移动来搓动待检钢球在电涡流探头11所对应的检测腔13内完全展开。采用电涡流探头11对待检钢球检测时，其所检测到的范围为待检钢球的球冠体部分，展开转盘4对待检钢球进行圆周转动搓动时，待检钢球滚动一周即完成对待检钢球的一个经度范围的检测，展开转盘4对待检钢球进行水平移动搓动时，待检钢球正交滚动至下一个待检经度范围处，如此往复，使得电涡流探头11对待检钢球进行多个不同经度范围的检测，从而确保电涡流探头11对待检钢球整个球体的完全覆盖。
本基于电涡流的自动化钢球检测设备，选用丝杆9、滑块7和导轨8的构成的驱动机构可以确保展开转盘4在平稳转动的同时进行精确且稳定地平移。
第一驱动装置3竖直连接有转轴15，该转轴15上套设有可沿其上下调节定位的轴套16，进给转盘2与该轴套16固定连接。通过轴套16与转轴15配合用于调节进给转盘2相对展开转盘4的高度，以使进给转盘2适应不同的 待检钢球。
电涡流探头11为多个，该多个电涡流探头11同时对应一个检测腔13或者分别对应多个检测腔13。该方案可对待检钢球进行多次复检，以确保检测结果的准确性。例如，采用两个对称设置的电涡流探头11以45度角相对检测腔13倾斜设置，该两个电涡流探头11同时对同一待检钢球进行检测，进一步地，还可以在将其中之一的电涡流探头11设置为激光探头(未图示)，激光探头发出的激光束照射到待检钢球的表面上然后再反射会激光探头的激光接受器，利用激光检测仪根据其接收的反射激光束来判断钢球表面是否具有缺陷，激光探头和电涡流探头11均属于高精密检测传感器，激光探头仅限于检测待检钢球的表面缺陷；或者在两个相邻的检测腔13的正上方分别各设置一个或多个电涡流探头11，该两个电涡流探头11分别对两个待检钢球同时进行检测，即同一待检钢球分别进行两次检测。
若干检测腔13呈圆周等分布置，若干检测腔13呈多圈同心圆周布置，每圈圆周上设置有至少一个所述电涡流探头11。其中，不同圆周上的检测腔13直径可以相同也可以不同，当不同圆周上的检测腔13直径相同时，即在进给转盘2上设置多个检测工位，该多个检测工位同步进行检测，可以提高检测效率；当不同圆周上的检测腔13直径不同时，如图4所示，即进给转盘2可适用于不同直径的待检测钢球，只需调节进给转盘2相对展开转盘4的高度，而不需更换进给转盘2即可检测，其通用性更强。
出料机构12的出料端还连接有分选装置17，分选装置17根据电涡流检测仪的检测结论来对待检测钢球进行分选，以便于挑选出不合格的待检钢球。
第一驱动装置3、第二驱动装置5和第三驱动装置10均为步进式伺服电机，便于PLC编程控制，并且驱动精度较高。
展开转盘4与托盘6的上端面齐平，避免钢球在从展开转盘4进入托盘6或者从托盘6进入展开转盘4时划伤钢球。
本基于电涡流的自动化钢球检测设备，其工作原理及过程如下：
待检钢球从进料机构1逐个进入进给转盘2的检测腔13内，第一驱动装置3驱动进给转盘2步进式转盘，进给转盘2每转动一个步距，进料机构1完成一次进料；在金给盘转动间隙静止不动时，展开转盘4在第二驱动装置5的驱动下进行圆周转动，同时展开转盘4还在第三驱动装置10的驱动下进行水平移动，具体地，第三驱动装置10驱动丝杆9转动，而丝杆9与滑块7螺纹配合，因此当丝杆9转动时，滑块7受到导轨8的限位作用沿导轨8移动，又由于第二驱动装置5和托盘6均固定设置于滑块7上，因此第二驱动装置5、展开转盘4和托盘6随滑块7整体移动；通过展开转盘4的圆周转动和水平移动来搓动待检钢球在电涡流探头11所对应的检测腔13内完全展开，在待检钢球展开过程中，电涡流探头11始终保持检测状态，并将检测数据传输至电涡流检测仪进行分析处理，再由电涡流检测仪给出该待检钢球是否合格的判断信号，当该待检钢球随进给转盘2转动至托盘6的出料口14处时，待检钢球从检测腔13掉落至出料机构12的分选装置17内，该分选装置17根据电涡流检测仪的检测信号对该待检钢球进行分选，挑选出不合格的待检钢球。
以上所述，仅是本发明的较佳实施例，并非对本发明的技术范围作出任何限制，故凡是依据本发明的技术实质对以上实施例所作的任何细微修改、等同变化与修饰，均仍属于本发明的技术方案的范围内。

Claims (8)

  1. 一种基于电涡流的自动化钢球检测设备，包括进料机构(1)、进给转盘(2)、第一驱动装置(3)、展开转盘(4)、第二驱动装置(5)、托盘(6)、滑块(7)、导轨(8)、丝杆(9)、第三驱动装置(10)、电涡流探头(11)、电涡流检测仪和出料机构(12)，进给转盘(2)上设有若干检测腔(13)，进料机构(1)与检测腔(13)连接，第一驱动装置(3)驱动进给转盘(2)转动，展开转盘(4)和托盘(6)设置于进给转盘(2)的下方，当待检钢球位于进给转盘(2)的检测腔(13)内时，待检钢球的下端与展开转盘(4)或托盘(6)接触，第二驱动装置(5)驱动展开转盘(4)转动，托盘(6)设有与进给转盘(2)上的检测腔(13)相对应的出料口(14)，出料机构(12)与该出料口(14)连接，其特征在于：第二驱动装置(5)和托盘(6)均固定设置于滑块(7)上，滑块(7)滑动设置于导轨(8)上，丝杆(9)与滑块(7)螺纹配合，第三驱动装置(10)驱动丝杆(9)转动，进而驱动滑块(7)沿导轨(8)移动，电涡流探头(11)设置于进给转盘(2)和展开转盘(4)的上方并且与检测腔(13)相对应，电涡流探头(11)与电涡流检测仪连接。
  2. 根据权利要求1所述的基于电涡流的自动化钢球检测设备，其特征在于：第一驱动装置(3)竖直连接有转轴(15)，该转轴(15)上套设有可沿其上下调节定位的轴套(16)，进给转盘(2)与该轴套(16)固定连接。
  3. 根据权利要求1所述的基于电涡流的自动化钢球检测设备，其特征在于：所述电涡流探头(11)为多个，该多个电涡流探头(11)同时对应一个检测腔(13)或者分别对应多个检测腔(13)。
  4. 根据权利要求1所述的基于电涡流的自动化钢球检测设备，其特征在于：所述若干检测腔(13)呈圆周等分布置。
  5. 根据权利要求4所述的基于电涡流的自动化钢球检测设备，其特征在于：所述若干检测腔(13)呈多圈同心圆周布置，每圈圆周上设置有至少一个所述电涡流探头(11)。
  6. 根据权利要求1所述基于电涡流的自动化钢球检测设备，其特征在于：出料机构(12)的出料端还连接有分选装置(17)。
  7. 根据权利要求1所述的基于电涡流的自动化钢球检测设备，其特征在于：第一驱动装置(3)、第二驱动装置(5)和第三驱动装置(10)均为步进式伺服电机。
  8. 根据权利要求1所述的基于电涡流的自动化钢球检测设备，其特征在于：展开转盘(4)与托盘(6)的上端面齐平。
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