WO2022052430A1 - 连杆裂解槽偏移检测装置及其检测方法 - Google Patents

连杆裂解槽偏移检测装置及其检测方法 Download PDF

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Publication number
WO2022052430A1
WO2022052430A1 PCT/CN2021/079816 CN2021079816W WO2022052430A1 WO 2022052430 A1 WO2022052430 A1 WO 2022052430A1 CN 2021079816 W CN2021079816 W CN 2021079816W WO 2022052430 A1 WO2022052430 A1 WO 2022052430A1
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WIPO (PCT)
Prior art keywords
connecting rod
detection
cracking
cracking tank
processing
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PCT/CN2021/079816
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English (en)
French (fr)
Inventor
王冠
林晓平
焦汇胜
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广东工业大学
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Publication of WO2022052430A1 publication Critical patent/WO2022052430A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
    • G01B11/27—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes

Definitions

  • the invention relates to the technical field of connecting rod cracking tanks, in particular to a connecting rod cracking tank offset detection device and a detection method thereof.
  • the offset of the cracking tank refers to whether the two cracking tanks are arranged at the two ends of the same diameter of the connecting rod big end hole. interrupt request. If the deviation of the cracking tank is not detected, after the subsequent process, the finished product of the connecting rod will not meet the requirements, resulting in high economic cost and time cost.
  • the purpose of the present invention is to provide a connecting rod cracking groove offset detection device and a detection method thereof, which can detect whether the cracking groove of the connecting rod is offset, avoid subsequent processing of the connecting rod that does not meet the requirements of expansion and breakage, and reduce production. cost.
  • the present invention provides a device for detecting the deviation of a connecting rod cracking tank, comprising: a frame, a clamp mechanism and a detection mechanism, wherein the clamp mechanism includes a rotating disk arranged on the frame for positioning The positioning assembly of the connecting rod and the first driving assembly for driving the rotating disk to rotate, the rotating disk is provided with a detection position, and the positioning assembly is arranged on the detection position; the detection mechanism includes a controller and a detection position.
  • the industrial camera on the frame, the industrial camera is located just above the detection position, the industrial camera is used to photograph the large end hole and the cracking groove of the connecting rod on the detection position, and the industrial camera is connected to the detection position.
  • the controller is electrically connected.
  • the connecting rod cracking tank offset detection device further includes a processing mechanism, the processing mechanism includes a laser cutting head for processing the cracking tank, and the rotating disk also has a processing position on the processing position.
  • the positioning assembly is also provided, and the laser cutting head is located above the processing position.
  • the processing mechanism further includes a robotic arm, the laser cutting head is connected to the robotic arm, and the robotic arm can rotate and move the laser cutting head.
  • the clamp mechanism further includes a clamp assembly, the clamp assembly includes a second drive assembly and a push block, the push block is arranged on the processing position, and the second drive assembly can push the The push block is pressed against the connecting rod on the processing position.
  • the second driving component is an air cylinder or an oil cylinder.
  • a material feeding position is further provided on the rotating disk, and the positioning assembly is also provided on the feeding position.
  • the positioning assembly includes a first blocking block and a second blocking block, the first blocking block is used for positioning the big end hole of the connecting rod, and the second blocking block is used for positioning the connecting rod. Small head hole.
  • the first clamping block is trapezoidal, and the length of the lower bottom of the first clamping block is smaller than the diameter of the big head hole.
  • the present invention also provides a detection method for a connecting rod cracking tank offset detection device, comprising the following steps:
  • Step 1 The industrial camera acquires the image data of the big end hole of the connecting rod and the cracking tank, and sends the image data to the controller.
  • Step 2 The controller collects the grayscale information of the image data and performs filtering processing, and then performs threshold processing to obtain the position features of the cracking tank and the big head hole.
  • Step 3 The controller determines whether the cracking tank is offset according to the positional features of the cracking tank and the big-end hole.
  • the embodiment of the present invention provides a connecting rod cracking tank offset detection device and a detection method thereof. Compared with the prior art, its beneficial effects are:
  • the connecting rod cracking tank offset detection device includes: a frame, a clamp mechanism and a detection mechanism.
  • the clamp mechanism includes a rotating disk arranged on the rack, a positioning assembly for positioning the connecting rod, and a rotating disk that drives the rotating disk to rotate.
  • the first drive assembly, the rotating disk has a detection position, the positioning assembly is arranged on the detection position, the detection mechanism, the detection mechanism includes a controller and an industrial camera arranged on the frame, the industrial camera is located directly above the detection position, and the industrial camera
  • the large end hole and cracking groove of the connecting rod on the inspection position are used for photographing, and the industrial camera is electrically connected with the controller.
  • the connecting rod is placed on the positioning assembly, the first drive assembly rotates the rotating disk, so that the connecting rod can be located in the detection position, the industrial camera obtains the image data of the big head hole and the cracking tank, and sends it to the controller, and the controller judges whether the cracking tank has occurred. Offset, avoiding the subsequent processing of connecting rods that do not meet the requirements of expansion and breaking, and reducing production costs.
  • the detection method of the connecting rod cracking groove offset detection device can detect whether the cracking groove of the connecting rod is offset, avoid subsequent processing of the connecting rod that does not meet the requirements of expansion and breakage, and reduce the production cost.
  • FIG. 1 is a schematic structural diagram of an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a rotating disk according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of the big head hole and the cracking tank according to the embodiment of the present invention.
  • FIG. 4 is the position of L in the embodiment of the present invention.
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements.
  • installed should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements.
  • a connecting rod cracking tank offset detection device includes a frame 1 , a clamp mechanism 2 and a detection mechanism 3 .
  • the frame 1 plays the role of connecting and supporting the clamp mechanism 2 and the detection mechanism 3 .
  • the fixture mechanism 2 includes a rotary disk 21 disposed on the frame 1, a positioning assembly 22 for positioning the link 5, and a first drive assembly 23 for driving the rotary disk 21 to rotate, and the rotary disk 21 has a detection position 211 , the positioning assembly 22 is arranged on the detection position 211 .
  • the connecting rod 5 is placed on the positioning assembly 22 , and the positioning assembly 22 is used to limit the position of the connecting rod 5 .
  • the first drive assembly 23 drives the rotary disk 21 to rotate, so that the connecting rod 5 can be located at the detection position 211, so that the detection work can be carried out normally.
  • Detection mechanism 3 includes a controller and an industrial camera 31 arranged on the rack 1, the industrial camera 31 is located directly above the detection position 211, and the industrial camera 31 is used for photographing the large end hole of the connecting rod 5 on the detection position 211 And the cracking tank 6, the industrial camera 31 is electrically connected with the controller.
  • the connecting rod 5 is located at the detection position 211
  • the industrial camera 31 shoots the big head hole and the cracking tank 6, acquires image data, and sends the image data to the controller, and the controller judges whether the cracking tank 6 is offset, which can screen
  • the connecting rods 5 that cannot meet the requirements for expansion and breaking are produced, and subsequent processing of the connecting rods 5 that do not meet the requirements for expansion and breaking can be avoided, thereby reducing production costs.
  • the connecting rod cracking tank offset detection device in this embodiment further includes a processing mechanism 4.
  • the processing mechanism 4 includes a laser cutting head 41 for processing the cracking tank 6.
  • the rotary disk 21 also has a processing position 212.
  • the positioning assembly 22 is provided, and the laser cutting head 41 is located above the processing position 212 .
  • the first drive assembly 23 drives the rotary disk 21 to rotate, the connecting rod 5 of the unprocessed cracking tank 6 first enters the processing position 212, and the laser cutting head 41 processes the cracking tank 6 at the processing position 212, and then the first driving assembly 23 restarts
  • the rotary disk 21 is driven to rotate, the connecting rod 5 enters the detection position 211, the industrial camera 31 acquires the image data of the cracking tank 6 and the big head hole, and the controller determines whether the cracking tank 6 is offset.
  • the processing and detection of the cracking tank 6 of the connecting rod 5 can be performed on the device for detecting the deviation of the cracking tank of the connecting rod in this embodiment.
  • the processing mechanism 4 further includes a robotic arm 42 , the laser cutting head 41 is connected to the robotic arm 42 , and the robotic arm 42 can rotate and move the laser cutting head 41 .
  • the mechanical arm 42 drives the laser cutting head 41 to move, and the laser cutting head 41 is aligned with the position of a cracking groove 6 to be machined by the connecting rod 5, and then a cracking groove 6 is machined at this position, Afterwards, the laser cutting head 41 moves away from the connecting rod 5, rotates the laser cutting head 41, and then aligns the position of another cracking groove 6 to be processed by the connecting rod 5. After a cracking groove 6 is machined at this position, the laser cutting head 41 After resetting away from the connecting rod 5 , the connecting rod 5 can leave the processing position 212 and go to the detection position 211 .
  • the clamp mechanism 2 further includes a clamp assembly 24 , the clamp assembly 24 includes a second drive assembly 241 and a push block 242 , the push block 242 is disposed on the processing position 212 , and the second drive assembly 241 can push the push block 242 against the working position 212 connecting rod 5.
  • the second driving assembly 241 drives the push block 242 to move, and cooperates with the positioning assembly 22 to press against the connecting rod 5 to ensure that the position of the connecting rod 5 does not move.
  • the laser cutting head 41 processes the connecting rod 5 . In this way, when the laser cutting head 41 processes the cracking groove 6, the position of the connecting rod 5 will not move.
  • the second driving assembly 241 drives the push block 242 in the reverse direction, and the push block 242 is no longer pressed against the connecting rod 5 .
  • the second driving component 241 is an air cylinder or an oil cylinder.
  • the rotary disk 21 is also provided with a feeding position 213, and the feeding position 213 is also provided with a positioning assembly 22.
  • the connecting rod 5 of the unprocessed cracking tank 6 is first placed on the positioning assembly 22 of the upper material level 213 .
  • the first drive assembly 23 drives the rotary disk 21 to rotate, the connecting rod 5 enters the processing position 212 to process the cracking tank 6, the first driving assembly 23 drives the rotating disk 21 to rotate, and the connecting rod 5 enters the detection position 211 to detect whether the cracking tank 6 is offset.
  • the first drive assembly 23 drives the rotary disk 21 to rotate, the connecting rod 5 returns to the loading position 213, removes the detected connecting rod 5 from the positioning assembly 22, and places another connecting rod 5 of the unprocessed cracking tank 6 , repeat the process.
  • the positioning assembly 22 includes a first locking block 221 and a second locking block 222 .
  • the first locking block 221 is used for positioning the large end hole of the connecting rod 5
  • the second locking block 222 is used for positioning the small end hole of the connecting rod 5 .
  • the first clamping block 221 is trapezoidal, and the length of the lower bottom of the first clamping block 221 is smaller than the diameter of the big head hole. In this way, the first clamping block 221 is located on one side of the big head hole when positioning the big head hole.
  • the first blocking block 221 will not affect the cutting of the cracking groove 6 on the connecting rod 5 by the laser cutting head 41 .
  • the positioning assembly 22 may also be provided at positions other than the detection position 211 , the processing position 212 and the material loading position 213 on the rotary disk 21 .
  • the eight positioning components 22 are evenly arranged and symmetrical about the center of the rotation axis of the rotary disk 21 . This arrangement can improve the working efficiency of the connecting rod cracking tank offset detection device.
  • the present embodiment also provides a detection method for a connecting rod cracking tank offset detection device, comprising the following steps:
  • Step 1 The industrial camera 31 acquires the image data of the big end hole of the connecting rod 5 and the cracking tank 6, and sends the image data to the controller.
  • Step 2 The controller collects the grayscale information of the image data and performs filtering processing, and then performs threshold processing to obtain the positional features of the cracking tank 6 and the big head hole.
  • Step 3 The controller judges whether the cracking tank 6 is offset according to the position characteristics of the cracking tank 6 and the big head hole.
  • an auxiliary line can be selected to assist the judgment when the operator is operating. Take the point on the big-end hole that is farthest from the diameter of the big-end hole where the cracking tank 6 is located, and make a tangent to the outline of the big-end hole at this point, and record the shortest distance between the cracking tank 6 and the tangent as L, when L and the radius of the big-end hole When they are equal, the cracking tank 6 does not shift. When the radius of L and the big head hole are not equal, the cracking tank 6 is shifted.
  • the position of L can be referred to FIG. 3 and FIG. 4 .
  • the embodiment of the present invention provides a connecting rod cracking tank offset detection device, which can detect whether the cracking tank 6 of the connecting rod 5 is offset, avoid subsequent processing of the connecting rod 5 that does not meet the requirements for expansion and breakage, and reduce production. cost.

Abstract

一种连杆裂解槽（6）偏移检测装置及其检测方法，其检测装置包括机架（1）、夹具机构（2）和检测机构（3），夹具机构（2）包括设置于机架（1）上的旋转盘（21）、用于定位连杆（5）的定位组件（22）和驱动旋转盘（21）转动的第一驱动组件（23），旋转盘（21）上具有检测位（211），定位组件（22）设置于检测位（211）上；检测机构（3）包括控制器和设置于机架（1）上的工业相机（31），工业相机（31）位于检测位（211）的正上方，工业相机（31）用于拍摄检测位（211）上的连杆的大头孔和裂解槽（6），工业相机（31）与控制器电连接。连杆裂解槽（6）偏移检测装置及其检测方法能够判断裂解槽（6）是否发生偏移，避免对不符合涨断要求的连杆进行后续加工，降低生产成本。

Description

连杆裂解槽偏移检测装置及其检测方法 技术领域
本发明涉及连杆裂解槽技术领域，特别是涉及一种连杆裂解槽偏移检测装置及其检测方法。
背景技术
裂解槽的偏移情况，指的是两个裂解槽是否设置于连杆大头孔的同一条直径的两端，当两个裂解槽没在连杆大头孔的同一条直径上，则不满足涨断要求。如果对裂解槽的偏移情况不进行检测，经过后续的工艺会导致连杆的成品不符合要求，导致经济成本和时间成本均较高。
发明内容
本发明的目的是：提供一种连杆裂解槽偏移检测装置及其检测方法，能够检测连杆的裂解槽是否发生偏移，避免对不符合涨断要求的连杆进行后续加工，降低生产成本。
为了实现上述目的，本发明提供了一种连杆裂解槽偏移检测装置，包括：机架、夹具机构和检测机构，所述夹具机构包括设置于所述机架上的旋转盘、用于定位连杆的定位组件和驱动所述旋转盘转动的第一驱动组件，所述旋转盘上具有检测位，所述定位组件设置于所述检测位上；所述检测机构包括控制器和设置于所述机架上的工业相机，所述工业相机位于所述检测位的正上方，所述工业相机用于拍摄所述检测位上的所述连杆的大头孔和裂解槽，所述工业相机与所述控制器电连接。
可选的，连杆裂解槽偏移检测装置，还包括加工机构，所述加工机构包括用于加工所述裂解槽的激光切割头，所述旋转盘上还具有加工位，所述加工位上也设置有所述定位组件，所述激光切割头位于所 述加工位的上方。
可选的，所述加工机构还包括机械臂，所述激光切割头连接于所述机械臂上，所述机械臂能够转动和移动所述激光切割头。
可选的，所述夹具机构还包括夹紧组件，所述夹紧组件包括第二驱动组件和推块，所述推块设置于所述加工位上，所述第二驱动组件能够推动所述推块抵紧所述加工位上的连杆。
可选的，所述第二驱动组件为气缸或油缸。
可选的，所述旋转盘上还设有上料位，所述上料位也设有所述定位组件。
可选的，所述定位组件包括第一卡块和第二卡块，所述第一卡块用于定位所述连杆的大头孔，所述第二卡块用于定位所述连杆的小头孔。
可选的，所述第一卡块呈梯形，且所述第一卡块的下底长度小于所述大头孔的直径。
本发明还提供一种连杆裂解槽偏移检测装置的检测方法，包括以下步骤：
步骤一：工业相机获取连杆的大头孔和裂解槽的图像数据，并将所述图像数据发送至控制器。
步骤二：所述控制器采集所述图像数据的灰度信息后进行滤波处理，再进行阈值处理后获得所述裂解槽和所述大头孔的位置特征。
步骤三：所述控制器根据所述裂解槽和所述大头孔的位置特征判断所述裂解槽是否发生偏移。
本发明实施例提供一种连杆裂解槽偏移检测装置及其检测方法，与现有技术相比，其有益效果在于：
本发明实施例的连杆裂解槽偏移检测装置，包括：机架、夹具机构和检测机构，夹具机构包括设置于机架上的旋转盘、用于定位连杆的定位组件和驱动旋转盘转动的第一驱动组件，旋转盘上具有检测位，定位组件设置于检测位上，检测机构，检测机构包括控制器和设置于 机架上的工业相机，工业相机位于检测位的正上方，工业相机用于拍摄检测位上的连杆的大头孔和裂解槽，工业相机与控制器电连接。将连杆置于定位组件上，第一驱动组件转动旋转盘，使得连杆能够位于检测位，工业相机获取大头孔和裂解槽的图像数据，并发送给控制器，控制器判断裂解槽是否发生偏移，避免对不符合涨断要求的连杆进行后续加工，降低生产成本。
本发明实施例的连杆裂解槽偏移检测装置的检测方法，能够检测连杆的裂解槽是否发生偏移，避免对不符合涨断要求的连杆进行后续加工，降低生产成本。
附图说明
图1是本发明实施例的结构示意图。
图2是本发明实施例的旋转盘的结构示意图。
图3是本发明实施例的大头孔和裂解槽的结构示意图。
图4是本发明实施例中L的位置。
图中，1、机架；2、夹具机构；3、检测机构；4、加工机构；5、连杆；6、裂解槽；21、旋转盘；22、定位组件；23、第一驱动组件；24、夹紧组件；211、检测位；212、加工位；213、上料位；221、第一卡块；222、第二卡块；241、第二驱动组件；242、推块；31、工业相机；32、光源；41、激光切割头；42、机械臂。
具体实施方式
下面结合附图和实施例，对本发明的具体实施方式作进一步详细描述。以下实施例用于说明本发明，但不用来限制本发明的范围。
在本发明的描述中，需要说明的是，术语“中心”、“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作， 因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
此外，在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。
对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
请参照图1，本发明实施例优选实施例的一种连杆裂解槽偏移检测装置，包括机架1、夹具机构2和检测机构3。
机架1，对夹具机构2和检测机构3起到连接和支撑的作用。
夹具机构2，夹具机构2包括设置于机架1上的旋转盘21、用于定位连杆5的定位组件22和驱动旋转盘21转动的第一驱动组件23，旋转盘21上具有检测位211，定位组件22设置于检测位211上。连杆5置于定位组件22上，定位组件22用于限制连杆5的位置。第一驱动组件23驱动旋转盘21转动，使得连杆5能够位于检测位211，便于检测工作的正常进行。
检测机构3，检测机构3包括控制器和设置于机架1上的工业相机31，工业相机31位于检测位211的正上方，工业相机31用于拍摄检测位211上的连杆5的大头孔和裂解槽6，工业相机31与控制器电连接。当连杆5位于检测位211时，工业相机31拍摄大头孔和裂解槽6，获取图像数据，并将图像数据发送给控制器，控制器对裂解槽6是否偏移做出判断，这样能够筛选出不能满足涨断要求的连杆5，避免对不符合涨断要求的连杆5进行后续加工，降低生产成本。机架1上还有光源32，光源32为大 头孔和裂解槽6打光，便于工业相机31拍摄出清晰的图像。
本实施例的连杆裂解槽偏移检测装置，还包括加工机构4，加工机构4包括用于加工裂解槽6的激光切割头41，旋转盘21上还具有加工位212，加工位212上也设置有定位组件22，激光切割头41位于加工位212的上方。这样设置，第一驱动组件23驱动旋转盘21旋转，未加工裂解槽6的连杆5先进入加工位212，激光切割头41在加工位212加工出裂解槽6，之后第一驱动组件23再驱动旋转盘21旋转，连杆5进入检测位211，工业相机31获取裂解槽6和大头孔的图像数据，控制器判断裂解槽6是否偏移。通过这样的结构，连杆5的裂解槽6加工、检测均可以在本实施例的连杆裂解槽偏移检测装置上进行。
加工机构4还包括机械臂42，激光切割头41连接于机械臂42上，机械臂42能够转动和移动激光切割头41。当连杆5进入加工位212时，机械臂42带动激光切割头41运动，激光切割头41对准连杆5应加工的一个裂解槽6的位置，之后在该位置加工出一个裂解槽6，之后激光切割头41远离连杆5运动，并转动激光切割头41，再对准连杆5应加工的另一个裂解槽6的位置，在该位置加工出一个裂解槽6后，激光切割头41复位远离连杆5，之后连杆5就可以离开加工位212前往检测位211。
夹具机构2还包括夹紧组件24，夹紧组件24包括第二驱动组件241和推块242，推块242设置于加工位212上，第二驱动组件241能够推动推块242抵紧加工位212上的连杆5。当连杆5进入加工位212时，第二驱动组件241驱动推块242运动，配合定位组件22抵紧连杆5，保证连杆5的位置不发生移动。之后，激光切割头41对连杆5进行加工。这样设置，激光切割头41加工裂解槽6时，连杆5的位置也不会移动。在激光切割头41加工完裂解槽6后，第二驱动组件241反向带动推块242，推块242不再抵紧连杆5。在本实施例中，第二驱动组件241为气缸或油缸。
此外，旋转盘21上还设有上料位213，上料位213也设有定位组 件22。未加工裂解槽6的连杆5，先置于上料位213的定位组件22上。第一驱动组件23驱动旋转盘21旋转，连杆5进入加工位212加工出裂解槽6，第一驱动组件23驱动旋转盘21旋转，连杆5进入检测位211检测裂解槽6是否发生偏移，第一驱动组件23驱动旋转盘21旋转，连杆5回到上料位213，将检测过的连杆5从定位组件22上拆下，并放置另一个未加工裂解槽6的连杆5，重复此过程。
定位组件22包括第一卡块221和第二卡块222，第一卡块221用于定位连杆5的大头孔，第二卡块222用于定位连杆5的小头孔。在本实施例中，第一卡块221呈梯形，且第一卡块221的下底长度小于大头孔的直径。这样设置，第一卡块221在定位大头孔时，位于大头孔内的一侧。第一卡块221不会影响激光切割头41在连杆5上切割裂解槽6。这里需要指出的是，旋转盘21上在除了检测位211、加工位212和上料位213以外的位置也可设置定位组件22。请参照图2，定位组件22共设置八个，八个定位组件22均匀设置且关于旋转盘21的旋转轴中心对称。这样设置，可以提高连杆裂解槽偏移检测装置的工作效率。
本实施例还一种连杆裂解槽偏移检测装置的检测方法，包括以下步骤：
步骤一：工业相机31获取连杆5的大头孔和裂解槽6的图像数据，并将图像数据发送至控制器。
步骤二：控制器采集图像数据的灰度信息后进行滤波处理，再进行阈值处理后获得裂解槽6和大头孔的位置特征。
步骤三：控制器根据裂解槽6和大头孔的位置特征判断裂解槽6是否发生偏移。
在判断是否发生偏移时，算子运算时，可选取辅助线辅助判断。取大头孔上距离裂解槽6所在的大头孔的直径最远的点，在该点上做大头孔轮廓的切线，记裂解槽6与该切线的最短距离为L，当L与大头孔的半径相等时，裂解槽6没有出现偏移，当L与大头孔的半径不相 等时，裂解槽6发生偏移，L的位置可参照图3和图4。
综上，本发明实施例提供一种连杆裂解槽偏移检测装置，能够检测连杆5的裂解槽6是否发生偏移，避免对不符合涨断要求的连杆5进行后续加工，降低生产成本。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和替换，这些改进和替换也应视为本发明的保护范围。

Claims (9)

  1. 一种连杆裂解槽偏移检测装置，其特征在于，包括：
    机架；
    夹具机构，所述夹具机构包括设置于所述机架上的旋转盘、用于定位连杆的定位组件和驱动所述旋转盘转动的第一驱动组件，所述旋转盘上具有检测位，所述定位组件设置于所述检测位上；
    检测机构，所述检测机构包括控制器和设置于所述机架上的工业相机，所述工业相机位于所述检测位的正上方，所述工业相机用于拍摄所述检测位上的所述连杆的大头孔和裂解槽，所述工业相机与所述控制器电连接。
  2. 根据权利要求1所述的连杆裂解槽偏移检测装置，其特征在于，还包括加工机构，所述加工机构包括用于加工所述裂解槽的激光切割头，所述旋转盘上还具有加工位，所述加工位上也设置有所述定位组件，所述激光切割头位于所述加工位的上方。
  3. 根据权利要求2所述的连杆裂解槽偏移检测装置，其特征在于，所述加工机构还包括机械臂，所述激光切割头连接于所述机械臂上，所述机械臂能够转动和移动所述激光切割头。
  4. 根据权利要求2所述的连杆裂解槽偏移检测装置，其特征在于，所述夹具机构还包括夹紧组件，所述夹紧组件包括第二驱动组件和推块，所述推块设置于所述加工位上，所述第二驱动组件能够推动所述推块抵紧所述加工位上的连杆。
  5. 根据权利要求4所述的连杆裂解槽偏移检测装置，其特征在于，所述第二驱动组件为气缸或油缸。
  6. 根据权利要求2所述的连杆裂解槽偏移检测装置，其特征在于，所述旋转盘上还设有上料位，所述上料位也设有所述定位组件。
  7. 根据权利要求1所述的连杆裂解槽偏移检测装置，其特征在于，所述定位组件包括第一卡块和第二卡块，所述第一卡块用于定位所述 连杆的大头孔，所述第二卡块用于定位所述连杆的小头孔。
  8. 根据权利要求7所述的连杆裂解槽偏移检测装置，其特征在于，所述第一卡块呈梯形，且所述第一卡块的下底长度小于所述大头孔的直径。
  9. 一种连杆裂解槽偏移检测装置的检测方法，其特征在于，包括以下步骤：
    步骤一：工业相机获取连杆的大头孔和裂解槽的图像数据，并将所述图像数据发送至控制器；
    步骤二：所述控制器采集所述图像数据的灰度信息后进行滤波处理，再进行阈值处理后获得所述裂解槽和所述大头孔的位置特征；
    步骤三：所述控制器根据所述裂解槽和所述大头孔的位置特征判断所述裂解槽是否发生偏移。
PCT/CN2021/079816 2020-09-11 2021-03-09 连杆裂解槽偏移检测装置及其检测方法 WO2022052430A1 (zh)

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