CN112082485A - Connecting rod cracking groove deviation detection device and detection method thereof - Google Patents
Connecting rod cracking groove deviation detection device and detection method thereof Download PDFInfo
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- CN112082485A CN112082485A CN202010953281.8A CN202010953281A CN112082485A CN 112082485 A CN112082485 A CN 112082485A CN 202010953281 A CN202010953281 A CN 202010953281A CN 112082485 A CN112082485 A CN 112082485A
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- connecting rod
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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
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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
- 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
Abstract
The invention relates to the technical field of connecting rod cracking grooves, and discloses a connecting rod cracking groove deviation detection device and a detection method thereof, wherein the detection device comprises a rack, a clamp mechanism and a detection mechanism, the clamp mechanism comprises a rotating disk arranged on the rack, a positioning assembly used for positioning a connecting rod and a first driving assembly used 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 comprises a controller and an industrial camera arranged on the rack, the industrial camera is positioned right above the detection position and is used for shooting a large-head hole and a cracking groove of a connecting rod on the detection position, and the industrial camera is electrically connected with the controller. The invention can judge whether the cracking groove deviates or not, avoids the subsequent processing of the connecting rod which does not meet the cracking requirement and reduces the production cost.
Description
Technical Field
The invention relates to the technical field of connecting rod cracking grooves, in particular to a connecting rod cracking groove deviation detection device and a detection method thereof.
Background
The deviation condition of the cracking grooves means whether the two cracking grooves are arranged at two ends of the same diameter of the connecting rod big-end hole, and when the two cracking grooves are not arranged on the same diameter of the connecting rod big-end hole, the cracking requirement is not met. If the deviation condition of the cracking groove is not detected, the finished connecting rod product is not qualified through subsequent processes, and the economic cost and the time cost are high.
Disclosure of Invention
The purpose of the invention is: the device and the method for detecting the deviation of the connecting rod cracking groove can detect whether the cracking groove of the connecting rod deviates or not, avoid subsequent processing of the connecting rod which does not meet the cracking requirement and reduce the production cost.
In order to achieve the above object, the present invention provides a connecting rod splitting slot deviation detecting device, comprising: the clamp mechanism comprises a rotating disc arranged on the rack, a positioning assembly used for positioning a connecting rod and a first driving assembly driving the rotating disc to rotate, a detection position is arranged on the rotating disc, and the positioning assembly is arranged on the detection position; the detection mechanism comprises a controller and an industrial camera arranged on the rack, the industrial camera is positioned right above the detection position and is used for shooting a large-head hole and a cracking groove of the connecting rod on the detection position, and the industrial camera is electrically connected with the controller.
Optionally, the connecting rod schizolysis groove skew detection device still includes processing agency, processing agency is including being used for processing the laser cutting head in schizolysis groove, still have the station of processing on the rotary disk, also be provided with on the station of processing locating component, the laser cutting head is located the top of station of processing.
Optionally, the processing mechanism further comprises a mechanical arm, the laser cutting head is connected to the mechanical arm, and the mechanical arm can rotate and move the laser cutting head.
Optionally, the fixture mechanism further includes a clamping assembly, the clamping assembly includes a second driving assembly and a pushing block, the pushing block is disposed on the machining position, and the second driving assembly can push the pushing block to abut against the connecting rod on the machining position.
Optionally, the second driving assembly is a cylinder or an oil cylinder.
Optionally, a material loading position is further arranged on the rotating disc, and the material loading position is also provided with the positioning assembly.
Optionally, the positioning assembly includes a first fixture block and a second fixture block, the first fixture block is used for positioning the big-end hole of the connecting rod, and the second fixture block is used for positioning the small-end hole of the connecting rod.
Optionally, the first fixture block is trapezoidal, and the length of the lower bottom of the first fixture block is smaller than the diameter of the large-head hole.
The invention also provides a detection method of the connecting rod cracking groove deviation detection device, which comprises the following steps:
the method comprises the following steps: the industrial camera acquires image data of the large-head hole and the cracking groove of the connecting rod and sends the image data to the controller.
Step two: and the controller acquires the gray information of the image data, performs filtering processing, and performs threshold processing to obtain the position characteristics of the cracking tank and the large head hole.
Step three: and the controller judges whether the cracking tank deviates or not according to the position characteristics of the cracking tank and the large-head hole.
The embodiment of the invention provides a connecting rod cracking groove deviation detection device and a detection method thereof, and compared with the prior art, the connecting rod cracking groove deviation detection device has the beneficial effects that:
the connecting rod cracking groove deviation detection device of the embodiment of the invention comprises: the automatic detection device comprises a frame, a clamp mechanism and a detection mechanism, wherein the clamp mechanism comprises a rotary disk arranged on the frame, a positioning assembly used for positioning a connecting rod and a first driving assembly used for driving the rotary disk to rotate, a detection position is arranged on the rotary disk, the positioning assembly is arranged on the detection position, the detection mechanism comprises a controller and an industrial camera arranged on the frame, the industrial camera is positioned right above the detection position, the industrial camera is used for shooting a large-head hole and a cracking groove of the connecting rod on the detection position, and the industrial camera is electrically connected with the controller. On arranging the locating component in with the connecting rod, first drive assembly rotates the rotary disk for the connecting rod can be located and detect the position, and the image data of bull nose hole and schizolysis groove is acquireed to the industry camera, and sends the controller, and whether the controller judges that the schizolysis groove takes place the skew, avoids carrying out follow-up processing to the connecting rod that is not conform to the disconnected requirement that rises, reduction in production cost.
The detection method of the connecting rod cracking groove deviation detection device provided by the embodiment of the invention can detect whether the cracking groove of the connecting rod deviates or not, so that the connecting rod which does not meet the cracking requirement is prevented from being subsequently processed, and the production cost is reduced.
Drawings
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 diagram of the configuration of a large head well and lysis trough in an embodiment of the present invention.
Fig. 4 is the position of L in an embodiment of the present invention.
In the figure, 1, a frame; 2. a clamp mechanism; 3. a detection mechanism; 4. a processing mechanism; 5. a connecting rod; 6. a cracking tank; 21. rotating the disc; 22. a positioning assembly; 23. a first drive assembly; 24. a clamping assembly; 211. detecting a bit; 212. processing stations; 213. loading the material; 221. a first clamping block; 222. a second fixture block; 241. a second drive assembly; 242. a push block; 31. an industrial camera; 32. a light source; 41. a laser cutting head; 42. a robotic arm.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, a device for detecting a deviation of a link splitting slot according to a preferred embodiment of the present invention includes a frame 1, a clamping mechanism 2, and a detection mechanism 3.
The frame 1 plays a role in connecting and supporting the clamp mechanism 2 and the detection mechanism 3.
The clamping mechanism 2 comprises a rotating disc 21 arranged on the frame 1, a positioning assembly 22 used for positioning the connecting rod 5 and a first driving assembly 23 driving the rotating disc 21 to rotate, the rotating disc 21 is provided with a detection position 211, and the positioning assembly 22 is arranged on the detection position 211. The connecting rod 5 is placed on a positioning component 22, and the positioning component 22 is used for limiting the position of the connecting rod 5. The first driving assembly 23 drives the rotating disc 21 to rotate, so that the connecting rod 5 can be positioned at the detection position 211, and the detection work can be conveniently and normally performed.
The detection mechanism 3, the detection mechanism 3 includes the controller and sets up the industry camera 31 on frame 1, and industry camera 31 is located and detects position 211 directly over, and industry camera 31 is used for shooing the big head hole and the schizolysis groove 6 of connecting rod 5 on detecting position 211, and industry camera 31 is connected with the controller electricity. When connecting rod 5 was located and detects position 211, industry camera 31 shot big head hole and schizolysis groove 6, obtained image data to sending image data for the controller, the controller makes the judgement to schizolysis groove 6 whether squints, can select like this and can not satisfy the connecting rod 5 that rises absolutely the requirement, avoids carrying out subsequent processing to connecting rod 5 that does not conform to and rises absolutely the requirement, reduction in production cost. The frame 1 is also provided with a light source 32, and the light source 32 illuminates the large-head hole and the cracking tank 6, so that the industrial camera 31 can shoot clear images conveniently.
The connecting rod splitting slot deviation detection device of the embodiment further comprises a processing mechanism 4, the processing mechanism 4 comprises a laser cutting head 41 used for processing the splitting slot 6, a processing position 212 is further arranged on the rotating disc 21, a positioning assembly 22 is also arranged on the processing position 212, and the laser cutting head 41 is located above the processing position 212. According to the arrangement, the first driving assembly 23 drives the rotating disc 21 to rotate, the connecting rod 5 of the unprocessed cracking slot 6 firstly enters the processing position 212, the laser cutting head 41 processes the cracking slot 6 at the processing position 212, then the first driving assembly 23 drives the rotating disc 21 to rotate, the connecting rod 5 enters the detection position 211, the industrial camera 31 obtains image data of the cracking slot 6 and a large-head hole, and the controller judges whether the cracking slot 6 deviates. With such a configuration, the link cleavage groove offset detection device of the present embodiment can perform both processing and detection of the cleavage groove 6 of the link 5.
The machining mechanism 4 further includes a robot arm 42, and the laser cutting head 41 is connected to the robot arm 42, and the robot arm 42 can rotate and move the laser cutting head 41. When the connecting rod 5 enters the processing station 212, the mechanical arm 42 drives the laser cutting head 41 to move, the laser cutting head 41 is aligned to the position of one cracking groove 6 to be processed by the connecting rod 5, then one cracking groove 6 is processed at the position, then the laser cutting head 41 moves away from the connecting rod 5, the laser cutting head 41 is rotated and is aligned to the position of the other cracking groove 6 to be processed by the connecting rod 5, after one cracking groove 6 is processed at the position, the laser cutting head 41 is reset to be away from the connecting rod 5, and then the connecting rod 5 can leave the processing station 212 to move to the detection position 211.
The clamping mechanism 2 further comprises a clamping assembly 24, the clamping assembly 24 comprises a second driving assembly 241 and a pushing block 242, the pushing block 242 is arranged on the processing position 212, and the second driving assembly 241 can push the pushing block 242 to abut against the connecting rod 5 on the processing position 212. When the connecting rod 5 enters the processing station 212, the second driving component 241 drives the pushing block 242 to move, and the positioning component 22 is matched to tightly abut against the connecting rod 5, so that the position of the connecting rod 5 is ensured not to move. After that, the laser cutting head 41 processes the connecting rod 5. With this arrangement, the position of the link 5 does not move when the laser cutting head 41 processes the cleavage groove 6. After the laser cutting head 41 finishes processing the cracking groove 6, the second driving assembly 241 reversely drives the pushing block 242, and the pushing block 242 does not abut against the connecting rod 5 any more. In this embodiment, the second driving assembly 241 is a cylinder or a cylinder.
Furthermore, a loading level 213 is provided on the rotary disc 21, and the loading level 213 is also provided with a positioning assembly 22. The connecting rods 5 of the raw cracking cell 6 are first placed on the positioning assembly 22 at the loading level 213. The first driving assembly 23 drives the rotating disc 21 to rotate, the connecting rod 5 enters the processing station 212 to process the cracking tank 6, the first driving assembly 23 drives the rotating disc 21 to rotate, the connecting rod 5 enters the detection station 211 to detect whether the cracking tank 6 deviates or not, the first driving assembly 23 drives the rotating disc 21 to rotate, the connecting rod 5 returns to the loading station 213, the detected connecting rod 5 is detached from the positioning assembly 22, another connecting rod 5 which is not processed with the cracking tank 6 is placed, and the process is repeated.
The positioning assembly 22 includes a first latch 221 and a second latch 222, the first latch 221 is used for positioning the big-end hole of the connecting rod 5, and the second latch 222 is used for positioning the small-end hole of the connecting rod 5. In this embodiment, the first latch 221 is trapezoidal, and the length of the lower bottom of the first latch 221 is smaller than the diameter of the large head hole. Thus, the first latch 221 is located at one side of the large head hole when the large head hole is located. The first latch 221 does not affect the laser cutting head 41 cutting the splitting slot 6 on the connecting rod 5. It should be noted here that the positioning assembly 22 may also be provided on the rotary disk 21 at a position other than the detection position 211, the processing position 212 and the loading position 213. Referring to fig. 2, the positioning assemblies 22 are disposed in eight, and the eight positioning assemblies 22 are uniformly disposed and are symmetrical with respect to the rotation axis of the rotating disc 21. By the arrangement, the working efficiency of the connecting rod cracking groove deviation detection device can be improved.
The embodiment also discloses a detection method of the connecting rod splitting slot deviation detection device, which comprises the following steps:
the method comprises the following steps: the industrial camera 31 acquires image data of the large-head hole of the link 5 and the cleavage groove 6, and transmits the image data to the controller.
Step two: the controller acquires the gray information of the image data, then carries out filtering processing, and then carries out threshold processing to obtain the position characteristics of the cracking tank 6 and the large-head hole.
Step three: the controller judges whether the cracking tank 6 deviates or not according to the position characteristics of the cracking tank 6 and the large-head hole.
When judging whether the deviation occurs or not, selecting an auxiliary line for auxiliary judgment during operator operation. Taking the point of the big head hole farthest from the diameter of the big head hole where the cracking groove 6 is located, making a tangent line of the big head hole profile at the point, recording that the shortest distance between the cracking groove 6 and the tangent line is L, when L is equal to the radius of the big head hole, the cracking groove 6 is not deviated, when L is not equal to the radius of the big head hole, the cracking groove 6 is deviated, and the position of L can refer to fig. 3 and 4.
To sum up, the embodiment of the invention provides a device for detecting the deviation of a cracking groove of a connecting rod, which can detect whether the cracking groove 6 of the connecting rod 5 deviates or not, avoid the follow-up processing of the connecting rod 5 which does not meet the cracking requirement, and reduce the production cost.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (9)
1. A connecting rod splitting slot deflection detection apparatus, comprising:
a frame;
the clamping mechanism comprises a rotating disc arranged on the rack, a positioning assembly used for positioning a connecting rod and a first driving assembly used for driving the rotating disc to rotate, the rotating disc is provided with a detection position, and the positioning assembly is arranged on the detection position;
the detection mechanism comprises a controller and an industrial camera arranged on the rack, the industrial camera is positioned right above the detection position and is used for shooting a big-end hole and a cracking groove of the connecting rod on the detection position, and the industrial camera is electrically connected with the controller.
2. The connecting rod splitting slot deviation detecting device according to claim 1, further comprising a processing mechanism, wherein the processing mechanism includes a laser cutting head for processing the splitting slot, the rotating disk further has a processing station thereon, the processing station is also provided with the positioning assembly, and the laser cutting head is located above the processing station.
3. The device for detecting the deviation of the link cleavage slot according to claim 2, wherein the processing mechanism further comprises a robot arm, the laser cutting head is connected to the robot arm, and the robot arm is capable of rotating and moving the laser cutting head.
4. The connecting rod splitting slot offset detection device of claim 2, wherein the clamp mechanism further comprises a clamping assembly, the clamping assembly comprises a second driving assembly and a pushing block, the pushing block is arranged on the processing position, and the second driving assembly can push the pushing block to abut against the connecting rod on the processing position.
5. The rod splitting slot deflection detecting device of claim 4, wherein the second drive assembly is a cylinder or a ram.
6. The rod splitting cell excursion detection device of claim 2, wherein a loading position is further provided on said rotating disk, said loading position also being provided with said positioning assembly.
7. The device for detecting the deviation of the splitting slot of the connecting rod as claimed in claim 1, wherein the positioning assembly comprises a first fixture block and a second fixture block, the first fixture block is used for positioning the big-end hole of the connecting rod, and the second fixture block is used for positioning the small-end hole of the connecting rod.
8. The device for detecting the deviation of the splitting slot of the connecting rod as claimed in claim 7, wherein the first engaging member is trapezoidal, and the length of the lower bottom of the first engaging member is smaller than the diameter of the large-head hole.
9. A detection method of a connecting rod splitting slot deviation detection device is characterized by comprising the following steps:
the method comprises the following steps: the method comprises the following steps that an industrial camera obtains image data of a big-end hole and a cracking groove of a connecting rod and sends the image data to a controller;
step two: the controller acquires gray information of the image data, then carries out filtering processing, and then carries out threshold processing to obtain the position characteristics of the cracking tank and the large head hole;
step three: and the controller judges whether the cracking tank deviates or not according to the position characteristics of the cracking tank and the large-head hole.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010953281.8A CN112082485A (en) | 2020-09-11 | 2020-09-11 | Connecting rod cracking groove deviation detection device and detection method thereof |
| PCT/CN2021/079816 WO2022052430A1 (en) | 2020-09-11 | 2021-03-09 | Device for detecting offset of fracture split notches of connecting rod, and detection method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010953281.8A CN112082485A (en) | 2020-09-11 | 2020-09-11 | Connecting rod cracking groove deviation detection device and detection method thereof |
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| Publication Number | Publication Date |
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| CN112082485A true CN112082485A (en) | 2020-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010953281.8A Pending CN112082485A (en) | 2020-09-11 | 2020-09-11 | Connecting rod cracking groove deviation detection device and detection method thereof |
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| CN (1) | CN112082485A (en) |
| WO (1) | WO2022052430A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022052430A1 (en) * | 2020-09-11 | 2022-03-17 | 广东工业大学 | Device for detecting offset of fracture split notches of connecting rod, and detection method therefor |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7852478B1 (en) * | 2010-02-18 | 2010-12-14 | National Formosa University | Detecting assembly for a multi-axis machine tool |
| CN204430581U (en) * | 2014-12-16 | 2015-07-01 | 大族激光科技产业集团股份有限公司 | A kind of laser cutting detects clamping device |
| CN106736187B (en) * | 2017-01-23 | 2018-06-08 | 广东工业大学 | Con-rod fracture splitting slot laser machines grip device |
| CN107202555B (en) * | 2017-04-28 | 2021-01-05 | 广东工业大学 | Connecting rod machining rotating disc clamp visual detection device and detection method |
| CN110487185A (en) * | 2019-07-26 | 2019-11-22 | 广东工业大学 | Based on machine vision connecting rod auxiliary positioning and splitter size detecting device and detection method |
| CN212340170U (en) * | 2020-09-11 | 2021-01-12 | 广东四会实力连杆有限公司 | Connecting rod schizolysis groove skew detection device |
| CN112082485A (en) * | 2020-09-11 | 2020-12-15 | 广东四会实力连杆有限公司 | Connecting rod cracking groove deviation detection device and detection method thereof |
-
2020
- 2020-09-11 CN CN202010953281.8A patent/CN112082485A/en active Pending
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2021
- 2021-03-09 WO PCT/CN2021/079816 patent/WO2022052430A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022052430A1 (en) * | 2020-09-11 | 2022-03-17 | 广东工业大学 | Device for detecting offset of fracture split notches of connecting rod, and detection method therefor |
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| WO2022052430A1 (en) | 2022-03-17 |
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