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WO2016086332A1 - 螺丝检测机 - Google Patents

螺丝检测机 Download PDF

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Publication number
WO2016086332A1
WO2016086332A1 PCT/CN2014/092645 CN2014092645W WO2016086332A1 WO 2016086332 A1 WO2016086332 A1 WO 2016086332A1 CN 2014092645 W CN2014092645 W CN 2014092645W WO 2016086332 A1 WO2016086332 A1 WO 2016086332A1
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WO
WIPO (PCT)
Prior art keywords
screw
detecting
indexing plate
indexing
defective
Prior art date
Application number
PCT/CN2014/092645
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English (en)
French (fr)
Inventor
李相鹏
Original Assignee
李相鹏
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Filing date
Publication date
Application filed by 李相鹏 filed Critical 李相鹏
Priority to PCT/CN2014/092645 priority Critical patent/WO2016086332A1/zh
Publication of WO2016086332A1 publication Critical patent/WO2016086332A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination

Definitions

  • the invention relates to an automated testing device, in particular a screw detector.
  • Screws are a common part and are widely used in various fields.
  • the screw should go through a inspection procedure before leaving the factory.
  • the contents of the test usually include total length, total width, thread parameters, head shape, head dimple position and depth. If these tests are done manually, usually only random inspections are performed, and the efficiency and accuracy are very poor. Especially for the detection of dimple depth, manual detection by probe is currently used, and the efficiency is extremely low. How to realize the automatic detection of the above items efficiently and accurately is the research content of the present invention.
  • the present invention provides an efficient and automatic screw detecting machine.
  • the technical solution of the present invention is to provide a screw detecting machine, which comprises
  • a circular indexing plate horizontally disposed on the frame, the edges of the indexing disk being equally spaced apart to provide a plurality of grooves for receiving screws, the grooves being indexed by the indexing
  • the edge of the disk extends toward the center of the indexing plate;
  • a driving device that drives the indexing disk to rotate about its own axis
  • a first detecting camera, a genuine cutting mechanism and a defective cutting mechanism are sequentially disposed along the rotating direction of the indexing disc;
  • the first detecting camera is horizontally facing a screw on the indexing plate
  • the defective material unloading mechanism is configured to collect the detected screw defective products, and the genuine cutting mechanism is used for collecting and detecting the genuine screw;
  • control host is connected to a defective feeding mechanism, a genuine cutting mechanism, the first detecting device and the first detecting camera,
  • the hole depth detecting device comprising a connecting rod, one end of the connecting rod is connected to the cylinder, and the other end is screwed to a probe sleeve, the probe sleeve includes an inner tube and an outer tube, The outer cylinder is sleeved on the inner cylinder in an axially movable manner, and a tapered probe is disposed on an end surface of the outer cylinder.
  • the connecting rod is sleeved with a compression spring, and one end of the compression spring abuts against the outer cylinder.
  • the method further includes:
  • a second detecting camera the second detecting camera is perpendicular to a screw on the indexing plate.
  • the defective feeding mechanism comprises a blowing pipe connected to the high-pressure gas, the blowing pipe is opposite to a groove on the indexing plate, and the blowing pipe outlet faces a horn-shaped receiving opening.
  • the defective feeding mechanism comprises an L-shaped discharge lever and a cylinder for driving the discharge lever to move horizontally.
  • the genuine unloading mechanism is a dial that is horizontally disposed above the indexing plate. a rod horizontally traversing a screw on the indexing plate, wherein the lever is provided with a curved surface facing the screw.
  • the feeding mechanism comprises a vibrating plate, the outlet of the vibrating plate is connected to an inclined slide, and the other end of the slide is connected to the indexing plate, and a middle of the slide is arranged along the length thereof. Chute.
  • the first detecting camera and the second detecting camera disposed on the frame are disposed on a camera platform capable of adjusting height, position and angle.
  • the screw detecting machine of the invention realizes automatic feeding, automatic analysis and detection by image processing technology, and sorting of genuine and defective products.
  • the screw detecting machine of the invention has the advantages of high efficiency, precision and the like.
  • Figure 1 is a plan view of a screw detecting machine in accordance with a preferred embodiment of the present invention
  • Figure 2 is a front elevational view of a screw detecting machine in accordance with a preferred embodiment of the present invention
  • FIG. 3 is a schematic structural view of a blanking mechanism of a defective product according to a first embodiment of the present invention
  • FIG. 4 is a schematic structural view of a blank feeding mechanism according to a second embodiment of the present invention.
  • Figure 5 is a schematic exploded view showing the hole depth detecting device of the present invention.
  • Figure 6 is a schematic view showing the operation of the hole depth detecting device of the present invention.
  • a screw detecting machine of the present invention comprises a frame 10, a circular indexing plate 12 is horizontally disposed on the frame 10, and a driving indexing plate 12 is disposed under the frame 10.
  • the driving mechanism 14, in this embodiment is a motor, of course, other common driving machines Structure can also be.
  • the edges of the indexing disc 12 are equally spaced to define a plurality of recesses 16 for receiving screws, and the recesses 16 extend from the edge of the indexing disc 12 toward the center of the indexing disc 12.
  • a feeding mechanism 18 is further disposed beside the frame 10 or the frame 10, and the screws are sequentially conveyed into the groove 16.
  • the feeding mechanism 18 includes a vibration plate 20, and the outlet of the vibration plate 20 is connected with a inclined slide 22, a slideway The other end of the 22 is connected to the indexing plate 12, and a sliding chute 24 is disposed along the longitudinal direction of the slide 22.
  • the screw enters the chute 24 from the vibration of the vibrating plate 20, the head of the screw just snaps onto the chute 24, and then slides down along the chute 24, and sequentially enters the groove 16. At this time, the screw The head is also snapped to the edge of the recess 16 to achieve an orderly feed.
  • a first detecting camera 26, a defective cutting mechanism 28 and a genuine cutting mechanism 30 are sequentially disposed along the rotating direction of the indexing plate 12; the first detecting camera 26 is horizontally facing a groove 16 on the indexing plate 12 so as to The front side of the screw of the groove 16;
  • the defective material unloading mechanism 28 is used for collecting the detected screw defective products, and the genuine unloading mechanism 30 is used for collecting and detecting the genuine screw obtained;
  • a control host (not shown) connects the genuine unloading mechanism 30, the defective material unloading mechanism 28, the first detecting device and the first detecting camera 26.
  • the first detecting camera 26 first performs photographing.
  • a distance sensor (not shown) is provided at the corresponding position to detect the presence or absence of the screw at the position.
  • the photo is transmitted to the control host, and the control host performs image processing and analysis to obtain a detection structure of the relevant size, thereby judging whether the screw is genuine or defective.
  • the defective product will be taken away by the defective material cutting mechanism 28 and collected after passing through the defective feeding mechanism 28.
  • the screws on the rest of the indexing plate 12 reach the genuine unloading mechanism 30, and all of them are removed from the indexing plate by the genuine unloading mechanism 30. Remove from 12 and collect.
  • the defective material unloading mechanism 28 of the first embodiment includes a blow pipe 32 connected to a high-pressure gas.
  • the blow pipe 32 faces the groove 16 on the indexing plate 12, and the outlet of the blow pipe 32 faces the horn. Feed port 34. In order to blow the screw from the indexing plate 12 into the receiving opening 34 for collection.
  • the reject opening mechanism 28 of the second embodiment includes an L-shaped discharge lever 36 and a cylinder 38 that drives the discharge lever 36 to move horizontally.
  • the screw is pulled down from the indexing plate 12 by the movement of the cylinder 38. It can better solve the blanking of larger and heavier screws.
  • the genuine unloading mechanism 30 is a horizontally disposed dial 40 above the indexing plate 12.
  • the lever 40 is horizontally disposed on the screw on the indexing plate 12, and a curved surface 42 of the pair of screws is disposed on the lever 30. In this way, all the screws that come here will move along the curved surface and fall off from the indexing plate 12.
  • a second detecting camera 44 may be further disposed, and the second detecting camera 44 vertically faces a screw on the indexing plate 12, thereby photographing the screw head to perform the pit for placing the screwdriver on the screw head. Detection, including the location and size of the pits.
  • a hole depth detecting device 46 is further disposed on the frame 10.
  • the hole depth detecting device includes a fixing block 47 on which a connecting rod 48 is disposed.
  • the fixing block 47 is connected to a cylinder (not shown), and the free end of the connecting rod 48 is screwed to a probe sleeve 50.
  • the probe sleeve 50 includes an inner cylinder 52 and an outer cylinder 54.
  • the outer cylinder 54 is axially movably sleeved on the inner cylinder 52.
  • the inner cylinder 52 is screwed onto the connecting rod 48, and the end surface of the outer cylinder 54 is disposed.
  • a connecting spring 58 is sleeved on the connecting rod 48, One end of the compression spring 58 abuts against the fixed block 47 and the other end abuts against the outer cylinder 54.
  • the cylinder drive connecting rod 48 drives the probe 56 down and penetrates into the recess of the screw until it abuts against the bottom of the pocket, and the compression spring 58 acts as a buffer.
  • the deep depth of the probe 56 i.e., the depth of the pit, can be obtained.

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sorting Of Articles (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

一种螺丝检测机，其包括一圆形分度盘(12)，圆形分度盘(12)水平设置在机架(10)上，圆形分度盘(12)的边缘等间距设置多个容纳螺丝的凹槽(16)，凹槽(16)由圆形分度盘(12)边缘向圆形分度盘(12)中心延伸；驱动装置(14)；送料机构(18)；沿圆形分度盘(12)转动方向，依次设置有一第一检测相机(26)、正品下料机构(30)和次品下料机构(28)；一孔深检测装置，孔深检测装置包括一连接杆(48)，连接杆(48)一端连接气缸，另一端螺纹连接一探针套筒(50)，探针套筒(50)包括内筒(52)和外筒(54)，外筒(54)可沿轴向移动地套接在内筒(52)上，外筒(54)的端面上设置有锥形的探针(56)。该检测机实现了自动送料，利用图像处理技术分析检测，实现正品和次品的分拣，具有高效、精确等优点。

Description

螺丝检测机 技术领域
本发明涉及一种自动化检测设备，尤其是螺丝检测机。
背景技术
螺丝是一种常见的零件，被广泛应用到各种领域中。螺丝在出厂前应该经过一道检验手续。检验的内容通常包括总长、总宽、螺牙参数、头部形状、头部凹窝位置和深度等。如果这些检验都由人工完成，则通常只能进行抽检，而且效率和准确度都非常差。尤其对于凹窝深度的检测，目前都是采用探针手动检测，效率极低。如何实现高效、准确的实现上述项目的自动化检测，是本发明所研究的内容。
发明内容
为了克服上述问题，本发明提供一种高效、自动的螺丝检测机。
本发明的技术方案是提供一种螺丝检测机，其包括
一机架；
一圆形分度盘，所述圆形分度盘水平设置在所述机架上，所述分度盘的边缘等间距设置多个容纳螺丝的凹槽，所述凹槽由所述分度盘边缘向所述分度盘中心延伸；
一驱动装置，驱动所述分度盘绕自身轴线转动；
一送料机构，将螺丝依次输送至所述凹槽中；
沿所述分度盘转动方向，依次设置有一第一检测相机、正品下料机构和次品下料机构；
所述第一检测相机水平正对所述分度盘上的一螺丝；
所述次品下料机构用于收集检测得到的螺丝次品，所述正品下料机构用于收集检测得到的螺丝正品；
一控制主机，所述控制主机连接次品下料机构、正品下料机构、所述第一检测装置和第一检测相机，
其特征在于，还包括：
一孔深检测装置，所述孔深检测装置包括一连接杆，所述连接杆一端连接气缸，另一端螺纹连接一探针套筒，所述探针套筒包括内筒和外筒，所述外筒可沿轴向移动地套接在所述内筒上，所述外筒的端面上设置有锥形的探针。
优选的，所述连接杆上套接有压簧，所述压簧的一端抵靠在所述外筒上。
优选的，还包括：
一第二检测相机，所述第二检测相机垂直正对所述分度盘上的一螺丝。
优选的，所述次品下料机构包括一连接高压气的吹管，所述吹管正对一所述分度盘上的凹槽，所述吹管出口正对一喇叭形收料口。
优选的，所述次品下料机构包括一L字形排料拨杆和一驱动所述排料拨杆水平移动的气缸。
优选的，所述正品下料机构为一水平设置在所述分度盘上方的拨 杆，所述拨杆水平横在分度盘上的螺丝上，所述拨杆上设置一正对螺丝的弧面。
优选的，所述送料机构包括一震动盘，所述震动盘的出口连接一倾斜滑道，所述滑道的另一端连接所述分度盘，所述滑道中间沿其长度方向设置一贯穿的滑槽。
优选的，所述机架上设置有所述第一检测相机和第二检测相机均设置在可调节高度、位置、角度的相机平台上。
本发明的螺丝检测机实现了自动送料，利用图像处理技术自动分析检测，以及正品和次品分拣。本发明的螺丝检测机具有高效、精确等优点。
附图说明
图1是本发明最佳实施例的一种螺丝检测机的俯视图；
图2是本发明最佳实施例的一种螺丝检测机的正视图；
图3是本发明第一实施例的次品下料机构的结构示意图；
图4是本发明第二实施例的次品下料机构的结构示意图；
图5是本发明的孔深检测装置的分解结构示意图；
图6是本发明的孔深检测装置的工作原理图。
具体实施方式
下面对本发明的具体实施方式作进一步详细的描述。
如图1至图4所示，本发明的一种螺丝检测机包括机架10，机架10上水平设置一圆形的分度盘12，机架10下设置有驱动分度盘12转动的驱动机构14，本实施例中是电机，当然其他常见的驱动机 构也可以。分度盘12的边缘等间距设置多个容纳螺丝的凹槽16，凹槽16由分度盘12边缘向分度盘12中心延伸。
机架10旁或机架10上还设置一送料机构18，将螺丝依次输送至凹槽16中；送料机构18包括包括一震动盘20，震动盘20的出口连接一倾斜滑道22，滑道22的另一端连接分度盘12，滑道22中间沿其长度方向设置一贯穿的滑槽24。使用时，螺丝从震动盘20的震动作用下进入滑槽24，螺丝的头部正好卡在滑槽24上，然后沿滑槽24滑下，依次进入到凹槽16中；此时，螺丝的头部也正好卡在凹槽16的边缘，从而实现有序给料。
沿分度盘12转动方向，依次设置有一第一检测相机26、次品下料机构28和正品下料机构30；第一检测相机26水平正对分度盘12上的一凹槽16，以便正面拍摄凹槽16的螺丝；
次品下料机构28用于收集检测得到的螺丝次品，正品下料机构30用于收集检测得到的螺丝正品；
一控制主机(未图示)，控制主机连接正品下料机构30、次品下料机构28、第一检测装置和第一检测相机26。
这样，其工作时，首先由第一检测相机26进行拍照，当然，对应位置会设置距离传感器(未图示)，以便侦测该位置有无螺丝。照片传输到控制主机，由控制主机进行图像处理和分析，得到相关尺寸的检测结构，从而判断出该螺丝为正品还是次品。次品在经过次品下料机构28处，会被次品下料机构28取走，并收集。其余分度盘12上的螺丝到达正品下料机构30处，全部被正品下料机构30从分度盘 12上取下并收集。
如图3所示，第一实施例的次品下料机构28包括一连接高压气的吹管32，吹管32正对一分度盘12上的凹槽16，吹管32出口正对一喇叭形收料口34。以便将螺丝从分度盘12上吹入收料口34中，以进行收集。
如图4所示，第二实施例的次品下料机构28包括一L字形排料拨杆36和一驱动排料拨杆36水平移动的气缸38。通过气缸38的移动，将螺丝从分度盘12上拨下来。其可以更好解决较大、较重的螺丝的下料。
正品下料机构30为一水平设置在分度盘12上方的拨杆40，拨杆40水平横在分度盘12上的螺丝上，拨杆30上设置一正对螺丝的弧面42。这样，全部到此的螺丝都会沿着弧面移动，从而从分度盘12上脱落。
进一步地，还可以设置一第二检测相机44，第二检测相机44垂直正对分度盘12上的一螺丝，从而拍摄螺丝头部，以便对螺丝头部的用于放置螺丝刀的凹坑进行检测，包括凹坑的位置和尺寸等。为了进一步地检测该凹坑的深度，机架10上还设置一孔深检测装置46。
如图5所示，孔深检测装置包括一固定块47，固定块47上设置一连接杆48。固定块47连接气缸(未图示)，连接杆48的自由端螺纹连接一探针套筒50。探针套筒50包括内筒52和外筒54，外筒54可沿轴向移动地套接在内筒52上，内筒52螺纹连接在连接杆48上，外筒54的端面上设置有锥形的探针56。连接杆48上套一压簧58， 压簧58一端抵靠在固定块47上，另一端抵靠在外筒54上。
使用时，气缸驱动连接杆48带动探针56下压，深入到螺丝的凹坑中，直至抵靠在凹坑底部，压簧58起到缓冲的作用。
如图6所示，通过拍摄探针56抵靠螺丝58的凹坑60的照片，然后检测照片，可获得探针56深入的深度，即凹坑的深度。
以上实施例仅为本发明其中的一种实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (8)

  1. 一种螺丝检测机，其包括
    一机架；
    一圆形分度盘，所述圆形分度盘水平设置在所述机架上，所述分度盘的边缘等间距设置多个容纳螺丝的凹槽，所述凹槽由所述分度盘边缘向所述分度盘中心延伸；
    一驱动装置，驱动所述分度盘绕自身轴线转动；
    一送料机构，将螺丝依次输送至所述凹槽中；
    沿所述分度盘转动方向，依次设置有一第一检测相机、正品下料机构和次品下料机构；
    所述第一检测相机水平正对所述分度盘上的一螺丝；
    所述次品下料机构用于收集检测得到的螺丝次品，所述正品下料机构用于收集检测得到的螺丝正品；
    一控制主机，所述控制主机连接次品下料机构、正品下料机构、所述第一检测装置和第一检测相机，
    其特征在于，还包括：
    一孔深检测装置，所述孔深检测装置包括一连接杆，所述连接杆一端连接气缸，另一端螺纹连接一探针套筒，所述探针套筒包括内筒和外筒，所述外筒可沿轴向移动地套接在所述内筒上，所述外筒的端面上设置有锥形的探针。
  2. 根据权利要求1所述的螺丝检测机，其特征在于，所述连接杆上套接有压簧，所述压簧的一端抵靠在所述外筒上。
  3. 根据权利要求2所述的螺丝检测机，其特征在于，还包括：
    一第二检测相机，所述第二检测相机垂直正对所述分度盘上的一螺丝。
  4. 根据权利要求3所述的螺丝检测机，其特征在于，所述次品下料机构包括一连接高压气的吹管，所述吹管正对一所述分度盘上的凹槽，所述吹管出口正对一喇叭形收料口。
  5. 根据权利要求4所述的螺丝检测机，其特征在于，所述次品下料机构包括一L字形排料拨杆和一驱动所述排料拨杆水平移动的气缸。
  6. 根据权利要求4或5其中之一所述的螺丝检测机，其特征在于，所述正品下料机构为一水平设置在所述分度盘上方的拨杆，所述拨杆水平横在分度盘上的螺丝上，所述拨杆上设置一正对螺丝的弧面。
  7. 根据权利要求6所述的螺丝检测机，其特征在于，所述送料机构包括一震动盘，所述震动盘的出口连接一倾斜滑道，所述滑道的另一端连接所述分度盘，所述滑道中间沿其长度方向设置一贯穿的滑槽。
  8. 根据权利要求7所述的螺丝检测机，其特征在于，所述机架上设置有所述第一检测相机和第二检测相机均设置在可调节高度、位置、角度的相机平台上。
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CN107755286A (zh) * 2017-11-21 2018-03-06 深圳市德望科技有限公司 一种全自动筛选检测分料机
CN107782735A (zh) * 2017-11-14 2018-03-09 伟创力电子技术(苏州)有限公司 一种用于检测产品外观的检测机
CN107824466A (zh) * 2017-08-28 2018-03-23 浙江屹纬精密技术有限公司 一种用于汽车大灯灯头的产品质量检测分类的出料装置
CN108188038A (zh) * 2018-01-12 2018-06-22 宁海永业汽车零部件有限公司 一种闷盖直径自动检测机
CN108466431A (zh) * 2018-05-03 2018-08-31 厦门市中可医疗科技有限公司 一种用于体外诊断行业的塑料盒子自动装配机
CN109239093A (zh) * 2018-10-30 2019-01-18 南京信息职业技术学院 电解电容器外观检测结构
CN109304636A (zh) * 2018-10-19 2019-02-05 嘉兴市易嘉机械有限公司 一种滑动销定位送料机构
CN109433631A (zh) * 2018-09-06 2019-03-08 国营芜湖机械厂 多规格螺栓损伤程度自动检测和分类的一体式装置
CN110434606A (zh) * 2019-09-04 2019-11-12 苏州台皇鑫精密机械有限公司 一种全自动麦拉螺丝组装机
CN110561076A (zh) * 2019-09-27 2019-12-13 深圳市精科悦电子有限公司 转盘式吹螺丝锁扶
CN110672344A (zh) * 2019-09-29 2020-01-10 覃柳思 一种多功能仪器测试台
CN110711723A (zh) * 2019-11-04 2020-01-21 江苏锦弘康电子科技有限公司 一种新型检测机
CN110802404A (zh) * 2019-12-10 2020-02-18 广州中国科学院沈阳自动化研究所分所 高压大电流连接器端子全自动组装机及其工艺方法
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CN115415190A (zh) * 2022-09-14 2022-12-02 欧拜欧(昆山)汽车紧固件有限公司 一种螺丝自动对位检测机构
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CN107421488A (zh) * 2017-08-22 2017-12-01 机科发展科技股份有限公司 工件测量设备及测量方法
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CN108466431B (zh) * 2018-05-03 2024-05-24 厦门市中可医疗科技有限公司 一种用于体外诊断行业的塑料盒子自动装配机
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CN109304636A (zh) * 2018-10-19 2019-02-05 嘉兴市易嘉机械有限公司 一种滑动销定位送料机构
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CN110561076A (zh) * 2019-09-27 2019-12-13 深圳市精科悦电子有限公司 转盘式吹螺丝锁扶
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