Bushing detection equipment and bushing production line

Abstract

The invention discloses bushing detection equipment and a bushing production line. The bushing detection equipment comprises a feeding module, a go-no go gauge detection module and a conveying module, the go / no-go gauge detection module is arranged at the downstream of the feeding module and comprises a detection go / no-go gauge and a go / no-go gauge driving part, and the detection go / no-go gauge is suitable for being driven by the go / no-go gauge driving part to move in the first direction; the conveying module is connected to the feeding module and the go-no go gauge detection module, the conveying module comprises at least one conveying mechanism, each conveying mechanism comprises an elastic piece and two conveying clamping arms, the two conveying clamping arms are suitable for being folded under the action of reset elastic force of the elastic pieces so as to clamp the bushings, and when the bushings are detected to be pushed by the go-no go gauges, the bushings are clamped by the conveying clamping arms. The self-adaptive opening and closing of the conveying clamping arm do not hinder the movement of the bushing, the detection go-no go gauge is effectively prevented from crushing the bushing or crushing the conveying module, the detection go-no go gauge and the conveying clamping arm do not need to be provided with a large number of sensors and complex control logic to realize the cooperative action, and the production cost and the maintenance cost of the bushing detection equipment are greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of bushing production equipment, and particularly to a bushing detection device and a bushing production line. Background Art

[0002] During the production process of bushings, there are dimensional requirements. Usually, full inspection with a go-no-go gauge or sampling inspection with a coordinate measuring machine is carried out manually, and the appearance of the bushings also needs to be fully inspected manually, resulting in low efficiency.

[0003] In the related art, devices for full inspection with a go-no-go gauge are proposed. Usually, multiple sensors are required to prevent the go-no-go gauge from crushing the bushing, and the results of multiple sensors need to be integrated to control the handling module to selectively classify the bushings, resulting in high production costs and complex structures. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides a bushing detection device and a bushing production line, which can effectively avoid the go-no-go gauge from crushing the bushing or crushing the conveying module, and do not require a large number of sensors and complex control logics to realize the coordinated movement of the go-no-go gauge and the conveying clamping arm, greatly reducing the production cost and maintenance cost of the bushing detection device.

[0005] On the one hand, an embodiment of the present invention provides a bushing detection device for detecting bushings, including: A feeding module; A go-no-go gauge detection module, arranged downstream of the feeding module. The go-no-go gauge detection module includes a detection go-no-go gauge and a go-no-go gauge driving member, and the detection go-no-go gauge is adapted to move along a first direction under the drive of the go-no-go gauge driving member; A conveying module, connected between the feeding module and the go-no-go gauge detection module, adapted to convey the bushing. The conveying module includes at least one conveying mechanism, and the conveying mechanism includes an elastic member and two conveying clamping arms that can open and close. The two conveying clamping arms are adapted to close under the reset elastic force of the elastic member to clamp the bushing; Along the first direction, the detection go-no-go gauge is located above the conveying module.

[0006] According to some embodiments of the present invention, the go-no-go gauge detection module further includes a picking gripper and a blanking mechanism. Along the first direction, the picking gripper is located below the conveying module and is fixed relative to the go-no-go gauge driving member, and the picking gripper is adapted to clamp the bushing; The blanking mechanism includes a blanking driving member and a plurality of blanking frames arranged in sequence along a second direction. The blanking frames at least include an OK blanking frame and a first NG blanking frame. The plurality of blanking frames are adapted to move along the second direction under the drive of the blanking driving member, and the second direction is arranged at an angle to the first direction.

[0007] According to some embodiments of the present invention, the picking gripper is provided with a vacuum hole, and the vacuum hole is adapted to communicate the bushing with an external vacuum source to vacuum-adsorb the bushing.

[0008] According to some embodiments of the present invention, the feeding module includes a feeding tray, a feeding track, and an expanding mechanism. The feeding track is provided with a feeding groove for the bushing to move. The first end of the feeding groove is connected to the feeding tray, and the second end of the feeding groove is connected to the conveying clamping arm. The expanding mechanism includes an expanding punch and an expanding driving member. The expanding punch is adapted to extend between the two conveying clamping arms under the drive of the expanding driving member to expand the distance between the two conveying clamping arms.

[0009] According to some embodiments of the present invention, the feeding module further includes a first limiting ejector rod and a first limiting driving member. The first limiting ejector rod is disposed through the feeding track, and the first limiting ejector rod is adapted to extend into the feeding groove under the drive of the first limiting driving member. and / or, The feeding module further includes a second limiting ejector rod and a second limiting driving member. Along the first direction, the second limiting ejector rod and the feeding groove are respectively disposed on both sides of the conveying module. The second limiting ejector rod is adapted to extend and retract under the drive of the second limiting driving member and limit the bushing along the first direction.

[0010] According to some embodiments of the present invention, the conveying module further includes a conveying turntable, and a plurality of the conveying mechanisms are arranged around the rotation center of the conveying turntable. The feeding module and the go-no-go gauge detection module are respectively adapted to one of the plurality of conveying mechanisms.

[0011] According to some embodiments of the present invention, the bushing detection device further includes a first vision module and a second vision module. The first vision module and the second vision module are respectively adapted to one of the plurality of conveying mechanisms. The first vision module includes a first detection camera, and the second vision module includes a second detection camera. Along the first direction, the first detection camera and the second detection camera are respectively located on both sides of the conveying module, and the fields of view of both face the conveying clamping arm to capture images of the end of the bushing.

[0012] According to some embodiments of the present invention, the first vision module further includes a third detection camera, and the second vision module further includes a fourth detection camera; The third detection camera is disposed on one side of the first detection camera, and the field of view faces the side wall of the bushing, and is adapted to capture an image of the side wall of the first side of the bushing; the fourth detection camera is disposed on one side of the second detection camera, and the field of view faces the side wall of the bushing, and is adapted to capture an image of the side wall of the second side of the bushing, and the first side and the second side are oppositely arranged.

[0013] According to some embodiments of the present invention, the bushing detection device further includes an NG pushing module, the NG pushing module is adapted to one of the plurality of conveying mechanisms, and is located downstream of the first vision module and the second vision module as a whole; The NG pushing module includes an NG pressing head, a pressing head driving member and a second NG blanking frame. Along the first direction, the NG pressing head and the second NG blanking frame are respectively located on both sides of the conveying module. The NG pressing head is adapted to push the bushing under the drive of the pressing head driving member so that the bushing enters the second NG blanking frame.

[0014] On the other hand, an embodiment of the present invention further provides a bushing production line, including the bushing detection device as described above.

[0015] The embodiments of the present invention have at least the following beneficial effects: Particularly, the form of using an elastic member to reset the conveying clamping arm to clamp the bushing is adopted to ensure that the qualified and unqualified bushings have a clear state distinction after detection (the qualified ones remain on the conveying clamping arm, and the unqualified ones are separated from the conveying clamping arm). And for the unqualified bushings, when the detection go-no-go gauge pushes the bushing, the conveying clamping arm adaptively opens and closes without hindering the movement of the bushing, effectively avoiding the detection go-no-go gauge from pressing the bushing or pressing the conveying module. There is no need to set a large number of sensors and complex control logics to realize the coordinated movement of the detection go-no-go gauge and the conveying clamping arm, which greatly reduces the production cost and maintenance cost of the bushing detection device.

[0016] The additional aspects and advantages of the present invention will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present invention. Description of the Drawings

[0017] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein: Figure 1 is one of the structural schematic diagrams of the bushing detection device according to the embodiment of the present invention; Figure 2 is the structural schematic diagram of the go-no-go gauge detection module of the bushing detection device according to the embodiment of the present invention; Figure 3It is the second structural schematic diagram of the bushing detection device according to the embodiment of the present invention; Figure 4 is Figure 3 the enlarged view of the partial A in; Figure 5 It is the structural schematic diagram of the first vision module and the second vision module of the bushing detection device according to the embodiment of the present invention; Figure 6 is Figure 1 the enlarged view of the partial B in.

[0018] Reference numerals: 100, feeding module; 110, feeding tray; 120, feeding track; 121, feeding groove; 130, expanding mechanism; 131, expanding punch; 132, expanding driving part; 141, first limiting ejector rod; 142, first limiting driving part; 151, second limiting ejector rod; 152, second limiting driving part; 200, go / no-go gauge detection module; 210, detection go / no-go gauge; 220, go / no-go gauge driving part; 230, material taking gripper; 240, blanking mechanism; 241, blanking driving part; 242, blanking frame; 2421, OK blanking frame; 2422, first NG blanking frame; 300, conveying module; 310, conveying mechanism; 311, conveying clamping arm; 320, conveying turntable; 400, first vision module; 410, first detection camera; 420, third detection camera; 500, second vision module; 510, second detection camera; 520, fourth detection camera; 600, NG pushing module; 610, NG punch; 620, punch driving part; 630, second NG blanking frame. Detailed implementation manners

[0019] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0020] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0021] In the description of the present invention, "several" means one or more, "multiple" means more than two. Understanding "greater than", "less than", "exceeding", etc. as not including the base number, and understanding "above", "below", "within", etc. as including the base number. If there is a description of "first", "second", etc., it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0022] In the description of the present invention, unless otherwise clearly defined, terms such as "arranged", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0023] Please refer to Figure 1 and Figure 2 As shown in [relevant figures], on the one hand, an embodiment of the present invention provides a bushing detection device for detecting bushings, including a feeding module 100, a go-no-go gauge detection module 200, and a conveying module 300; the go-no-go gauge detection module 200 is arranged downstream of the feeding module 100. The go-no-go gauge detection module 200 includes a detection go-no-go gauge 210 and a go-no-go gauge driving member 220. The detection go-no-go gauge 210 is adapted to move along a first direction under the drive of the go-no-go gauge driving member 220; the conveying module 300 is connected between the feeding module 100 and the go-no-go gauge detection module 200 and is adapted to convey bushings. The conveying module 300 includes at least one conveying mechanism 310. The conveying mechanism 310 includes an elastic member (not shown in the figure) and two conveying clamping arms 311 that can open and close. The two conveying clamping arms 311 are adapted to close under the reset elastic force of the elastic member to clamp the bushing; along the first direction, the detection go-no-go gauge 210 is located above the conveying module 300.

[0024] Taking the bushing that can pass through the go gauge of the detection go-no-go gauge 210 as qualified according to the bushing detection device of the embodiment of the present invention, the feeding module 100 conveys the bushing between the conveying clamping arms 311 of the conveying module 300. Under the reset elastic force of the elastic member, the conveying clamping arms 311 stably clamp the bushing and convey it to the go-no-go gauge detection module 200. The detection go-no-go gauge 210 of the go-no-go gauge detection module 200 approaches the bushing to be detected along the first direction (the Z direction shown in the figure) under the drive of the go-no-go gauge driving member 220. During this process, the bushing with qualified dimensions will not contact the detection go-no-go gauge 210 and continues to remain between the conveying clamping arms 311, while the bushing with unqualified dimensions will be pushed by the detection go-no-go gauge 210. At this time, part of the power provided by the go-no-go gauge driving member 220 is used to overcome the frictional force formed by the reset elastic force of the elastic member on the surface of the bushing, so that the bushing moves along the first direction and disengages from the conveying clamping arms 311.

[0025] It should be noted that the bushing has dimensional requirements during the production process. Usually, the full inspection of the go-no-go gauge is carried out manually or the sampling inspection by the coordinate measuring machine is carried out, resulting in low efficiency. Moreover, in the related technology, the handling of the bushing usually adopts the form of a pneumatic gripper. It can be understood that the pneumatic gripper grips the bushing rigidly (the clamping state of the pneumatic gripper will not change without being controlled by the controller after clamping). When it is applied to the automated inspection of the go-no-go gauge, due to the rigid clamping of the pneumatic gripper, when the inspection go-no-go gauge 210 pushes against the bushing, the bushing cannot move relative to the pneumatic gripper whether the bushing is qualified in size or not, resulting in the problem of damaging the bushing. Therefore, for the detection equipment of the pneumatic gripper, additional sensors need to be set to detect the movement of the inspection go-no-go gauge 210 and the bushing, and the controller controls the pneumatic gripper to release and the bushing to move when the inspection go-no-go gauge 210 pushes against the bushing based on the detection results. Correspondingly, the above solution greatly increases the manufacturing cost of the detection equipment.

[0026] According to the bushing detection equipment of the embodiment of the present invention, in particular, the form of using the elastic member to reset the conveying clamping arm 311 to grip the bushing is adopted to ensure that there is a clear state distinction between the qualified and unqualified bushings after detection (the qualified ones remain on the conveying clamping arm 311, and the unqualified ones are separated from the conveying clamping arm 311). Moreover, for the unqualified bushing, when the inspection go-no-go gauge pushes against the bushing, the conveying clamping arm 311 adaptively opens and closes without hindering the movement of the bushing, effectively avoiding the inspection go-no-go gauge from damaging the bushing or damaging the conveying module 300. There is no need to set a large number of sensors and complex control logics to realize the coordinated movement of the inspection go-no-go gauge and the conveying clamping arm 311, greatly reducing the production cost and maintenance cost of the bushing detection equipment.

[0027] In this embodiment, the go-no-go gauge driving member is a cylinder; in other embodiments, it can also be a lead screw module, a slide table module, etc.

[0028] In this embodiment, the elastic member is a linear spring; in other embodiments, it can also be in the form of a torsion spring or a silicone pad.

[0029] In some embodiments, as shown in combination with Figure 1 and Figure 2 The go-no-go gauge detection module 200 further includes a picking gripper 230 and a blanking mechanism 240. Along the first direction, the picking gripper 230 is located below the conveying module 300 and is fixed relative to the go-no-go gauge driving member 220. The picking gripper 230 is adapted to grip the bushing; the blanking mechanism 240 includes a blanking driving member 241 and a plurality of blanking frames 242 arranged in sequence along the second direction. The blanking frames 242 at least include an OK blanking frame 2421 and a first NG blanking frame 2422. The plurality of blanking frames 242 are adapted to move along the second direction under the drive of the blanking driving member 241, and the second direction is set at an angle to the first direction.

[0030] In this embodiment, as described above, qualified bushings will continue to be clamped in the conveying gripper arm 311, and unqualified bushings will fall off. For qualified bushings, the picking gripper 230 clamps the bushing, and the conveying gripper arm 311 continues to move. At this time, the bushing disengages from the conveying gripper arm 311 and is fixed to the picking gripper 230. The blanking driving member 241 drives the OK blanking frame 2421 to move below the picking gripper 230 to receive the qualified bushings that fall from the picking gripper 230. For unqualified bushings, the blanking driving member 241 drives the first NG blanking frame 2422 to move below the conveying gripper arm 311 to receive the unqualified bushings that fall from the conveying gripper arm 311.

[0031] It can be understood that since the qualified state of the bushing is uncertain before detection, in this embodiment, it is default that the first NG blanking frame 2422 is located below the conveying gripper arm 311 initially. When the bushing detection device determines that the bushing does not fall from the conveying gripper arm 311 (it can be detected whether there is a bushing through a detection sensor), the picking gripper 230 is controlled to clamp the bushing, and the blanking driving member 241 is controlled to drive the OK blanking frame 2421 to move below the picking gripper 230.

[0032] In this embodiment, the separate collection of qualified and unqualified bushings is realized by switching the blanking frame 242 to prevent material mixing. The picking gripper 230 is used in combination with the conveying movement of the conveying module 300 to disengage the bushing from the conveying gripper arm 311, and there is no need to use complex control logic to realize the coordinated work of the picking gripper 230 and the conveying gripper arm 311, effectively reducing the cost of the bushing detection device.

[0033] In this embodiment, the first direction (Z direction shown in the figure) and the second direction (X direction shown in the figure) are perpendicular to each other. In other embodiments, they can also be acute angles or obtuse angles, as long as it is ensured that the blanking frame 242 can move below the conveying module 300 to carry the bushing.

[0034] In other embodiments, an OK blanking frame 2421 is set for the bushings that pass through the go gauge in the detection go-no-go gauge 210, and a first NG blanking frame 2422 is set for those that do not pass. It can be understood that a third NG blanking frame 242 can also be set for the no-go gauge in the detection go-no-go gauge 210 to distinguish between the bushings that are unqualified due to not passing the go gauge and those that are unqualified due to the no-go gauge not being able to stop.

[0035] In this embodiment, the blanking driving member 241 is a cylinder. In other embodiments, it can also be a lead screw module, a slide table module, etc.

[0036] In some embodiments, as shown in combination with Figure 2 the picking gripper 230 is provided with a vacuum hole (not shown in the figure), and the vacuum hole is adapted to connect the bushing with an external vacuum source to vacuum-adsorb the bushing. By means of vacuum adsorption, excessive damage to the surface of the bushing during the clamping process by the picking gripper 230 is reduced.

[0037] In some embodiments, in combination with Figure 1 , Figure 3 and Figure 4 as shown, the feeding module 100 includes a feeding tray 110, a feeding track 120 and an expanding mechanism 130. The feeding track 120 is provided with a feeding groove 121 for the bushing to move. The first end of the feeding groove 121 is connected to the feeding tray 110, and the second end of the feeding groove 121 is connected to the conveying clamping arm 311. The expanding mechanism 130 includes an expanding ram 131 and an expanding driving member 132. The expanding ram 131 is adapted to extend between the two conveying clamping arms 311 under the drive of the expanding driving member 132 to expand the distance between the two conveying clamping arms 311.

[0038] In this embodiment, the expanding ram 131 is inserted into the conveying clamping arm 311 under the action of the expanding driving member 132, and pushes the two conveying clamping arms 311 to move away from each other, so that the distance between the conveying clamping arms 311 is sufficient to accommodate the bushing. The bushings on the feeding tray 110 move one by one along the feeding groove 121 and move between the conveying clamping arms 311. The expanding driving member 132 drives the expanding ram 131 to retract, and the conveying clamping arms 311 clamp the bushing under the reset elastic force of the elastic member.

[0039] The opening or clamping of the conveying clamping arm 311 is realized by the linear motion of the expanding ram 131, which simplifies the structure of the bushing detection device and improves the operation reliability.

[0040] In this embodiment, the expanding driving member 132 is a cylinder. In other embodiments, it can also be a lead screw module, a sliding table module, etc.

[0041] In other embodiments, the feeding of the bushing can also be in the form of being carried by a moving module, and the moving module can be a robotic arm or a handling gripper, etc.

[0042] In one embodiment, in combination with Figure 1 , 3 and Figure 4 as shown, the feeding module 100 further includes a first limit ejector rod 141 and a first limit driving member 142. The first limit ejector rod 141 passes through the feeding track 120, and the first limit ejector rod 141 is adapted to extend into the feeding groove 121 under the drive of the first limit driving member 142.

[0043] In this embodiment, the first limit ejector rod 141 extends into the feeding groove 121 to push the bushing, so that the bushing is fixed in the feeding groove 121, preventing the bushing in the feeding groove 121 from continuing to move towards the conveying clamping arm 311 and affecting the feeding process when there is a bushing being fed into the conveying clamping arm 311.

[0044] In this embodiment, the first limit driving member 142 is a cylinder. In other embodiments, it can also be a lead screw module, a sliding table module, etc. In one embodiment, the feeding module 100 further includes a second limiting ejector rod 151 and a second limiting driving member 152. Along the first direction, the second limiting ejector rod 151 and the feeding groove 121 are respectively arranged on both sides of the conveying module 300. The second limiting ejector rod 151 is adapted to expand and contract under the drive of the second limiting driving member 152 and limit the bushing along the first direction.

[0045] In this embodiment, the top end of the second limiting ejector rod 151 contacts the bushing, so that the position of each bushing entering the conveying clamping arm 311 is the same and the clamping is stable. In this embodiment, the tail section of the feeding groove 121 is vertically downward, so that the bushing falls under the action of gravity, and the second limiting ejector rod 151 can effectively prevent the bushing from falling.

[0046] In this embodiment, the second limiting driving member 152 is a cylinder. In other embodiments, it can also be a lead screw module, a slide table module, etc. Of course, the above two embodiments can be combined to use, while preventing the bushing in the feeding groove 121 from affecting the feeding of the bushing in the conveying clamping arm 311, ensuring the accuracy of each bushing feeding and the stability of the feeding process.

[0047] In some embodiments, in combination with Figure 1 and Figure 2 As shown, the conveying module 300 further includes a conveying turntable 320. A plurality of conveying mechanisms 310 are arranged around the rotation center of the conveying turntable 320. The feeding module 100 and the go-no-go gauge detection module 200 are respectively adapted to one of the plurality of conveying mechanisms 310.

[0048] In this embodiment, the conveying turntable 320 realizes the reuse of the conveying mechanism 310, realizes the automation process of the bushing detection device, and the arrangement of the plurality of conveying mechanisms 310 enables the feeding process of the feeding module 100 and the detection process of the go-no-go gauge detection module 200 to be carried out simultaneously, effectively improving the efficiency of the bushing detection device.

[0049] In this embodiment, the conveying turntable 320 is provided with five conveying mechanisms 310, one is adapted to the feeding module 100, one is adapted to the go-no-go gauge detection module 200, and the remaining three are adapted to other modules (the first vision module 400, the second vision module 500 and the NG pushing module 600 in the following text). Of course, based on the detection requirements, the number of the conveying mechanisms 310 can be adaptively adjusted.

[0050] In other embodiments, the conveying module 300 can also adopt the form of a conveyor belt or a conveying track to convey the conveying mechanism 310.

[0051] In some embodiments, in combination with Figure 1 and Figure 5As shown, the bushing detection equipment also includes a first vision module 400 and a second vision module 500, and the first vision module 400 and the second vision module 500 are respectively adapted to one of the multiple conveying mechanisms 310; the first vision module 400 includes a first detection camera 410, and the second vision module 500 includes a second detection camera 510. Along the first direction (Z direction as shown in the figure), the first detection camera 410 and the second detection camera 510 are respectively located on both sides of the conveying module 300, and the fields of view of both are toward the conveying clamping arm 311 to capture the image of the end of the bushing.

[0052] In this embodiment, the first inspection camera 410 is used to obtain an image of the lower end surface of the bushing along the Z direction shown in the figure, and the second inspection camera 510 is used to obtain an image of the upper end surface of the bushing to comprehensively determine whether the end of the bushing has defects (material shortage, deformation, oil stain, etc.).

[0053] In this embodiment, by corresponding different conveying mechanisms 310 to the first visual module 400 and the second visual module 500, a supplementary light source can be set on the side of the conveying mechanism 310 corresponding to the first detection camera 410 that is away from the first detection camera 410. The supplementary light source is used to improve the clarity of the captured image. At the same time, a supplementary light source can also be set on the side of the conveying mechanism 310 corresponding to the second detection camera 510 that is away from the second detection camera 510.

[0054] Currently, in other embodiments, based on the spatial arrangement requirements, the first detection camera 410 and the second detection camera 510 may also be simultaneously disposed on both sides of the same conveying mechanism 310 .

[0055] In some embodiments, in combination Figure 1 and Figure 5 As shown, the first visual module 400 also includes a third detection camera 420, and the second visual module 500 also includes a fourth detection camera 520; the third detection camera 420 is arranged on one side of the first detection camera 410, and the field of view is toward the side wall of the bushing, suitable for capturing the image of the side wall of the first side of the bushing; the fourth detection camera 520 is arranged on one side of the second detection camera 510, and the field of view is toward the side wall of the bushing, suitable for capturing the image of the side wall of the second side of the bushing, and the first side is arranged opposite to the second side.

[0056] It should be noted that a sprue is usually provided on the side wall of the bushing, and the position and height of the sprue will affect the assembly performance of the bushing.

[0057] In this embodiment, the third inspection camera 420 captures an image of the first side of the bushing and the fourth inspection camera 520 captures an image of the second side of the bushing, covering the entire side wall of the bushing, ensuring that the water outlet can be captured at any position on the side wall without adjusting the orientation of the bushing during transportation.

[0058] In this embodiment, the third detection camera 420 is disposed on the side of the first detection camera 410 close to the second detection camera 510, and the fourth detection camera 520 is disposed on the side of the second detection camera 510 close to the first detection camera 410. In other embodiments, the orientation can also be adjusted as needed. For example, the third detection camera 420 can be disposed on the side of the first detection camera 410 close to the conveying module 300, and the fourth detection camera 520 is disposed on the side of the second detection camera 510 away from the conveying module 300, as long as a complete image of the side wall of the bushing can be obtained.

[0059] In some embodiments, as shown in combination with Figure 1 and Figure 6 the bushing detection device further includes an NG pushing module 600. The NG pushing module 600 is adapted to one of the plurality of conveying mechanisms 310 and is located downstream of the overall first vision module 400 and second vision module 500. The NG pushing module 600 includes an NG pressing head 610, a pressing head driving member 620, and a second NG blanking frame 630. Along the first direction (the illustrated Z direction), the NG pressing head 610 and the second NG blanking frame 630 are respectively located on both sides of the conveying module 300. The NG pressing head 610 is adapted to push the bushing under the drive of the pressing head driving member 620 so that the bushing enters the second NG blanking frame 630.

[0060] In this embodiment, when the bushing is detected as unqualified by any one of the first vision module 400 or the second vision module 500, when the conveying mechanism 310 conveys the bushing to below the NG pushing module 600, the pressing head driving member 620 drives the NG pressing head 610 to move and push the unqualified bushing, so that the bushing disengages from the conveying clamping arm 311 and falls into the second NG blanking frame 630. Through the NG pushing module 600, the products detected as unqualified by the first vision module 400 or the second vision module 500 will not flow into the go-no-go gauge detection module 200 for detection, improving the detection efficiency of the bushing detection device.

[0061] In other embodiments, a robotic arm, handling grippers, etc. can also be provided to directly grab the unqualified bushings.

[0062] On the other hand, an embodiment of the present invention further provides a bushing production line, including the bushing detection device as described in the above embodiment.

[0063] The above has described the embodiments of the present invention in detail with reference to the drawings. However, the present invention is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art to which the present invention pertains, various changes can be made without departing from the gist of the present invention.

Claims

1. A bushing detection device, used for bushing detection, characterized in that: include: Feeding module (100); a go / no-go gauge detection module (200), arranged downstream of the feeding module (100), the go / no-go gauge detection module (200) comprising a go / no-go gauge detection (210) and a go / no-go gauge driving member (220), the go / no-go gauge detection (210) being adapted to move along a first direction under the drive of the go / no-go gauge driving member (220); A conveying module (300) connected to the feeding module (100) and the go / no-go gauge detection module (200), suitable for conveying the bushing, the conveying module (300) comprising at least one conveying mechanism (310), the conveying mechanism (310) comprising an elastic member and two conveying clamping arms (311) capable of opening and closing, the two conveying clamping arms (311) being suitable for being coupled to clamp the bushing under the action of the resetting elastic force of the elastic member; The detection go / no-go gauge (210) is located above the conveying module (300) along the first direction.

2. The bushing detection device according to claim 1, characterized in that: The go / no-go gauge detection module (200) further comprises a material picking clamp (230) and a material unloading mechanism (240); the material picking clamp (230) is located below the conveying module (300) along the first direction and is fixed relative to the go / no-go gauge driving member (220); the material picking clamp (230) is suitable for clamping the bushing; The unloading mechanism (240) comprises an unloading driving member (241) and a plurality of unloading frames (242) arranged in sequence along a second direction, wherein the unloading frames (242) at least comprise an OK unloading frame (2421) and a first NG unloading frame (2422), and the plurality of unloading frames (242) are suitable for moving along the second direction under the drive of the unloading driving member (241), and the second direction is arranged at an angle to the first direction.

3. The bushing detection device according to claim 2, characterized in that: The material taking clamping claw (230) is provided with a vacuum air hole, and the vacuum air hole is suitable for connecting the bushing with an external vacuum source to adsorb the bushing through the vacuum hole.

4. The bushing detection device according to any one of claims 1 to 3, characterized in that: The feeding module (100) comprises a feeding tray (110), a feeding track (120) and an expansion mechanism (130); the feeding track (120) is provided with a feeding trough (121) for the bushing to move; a first end of the feeding trough (121) is connected to the feeding tray (110), and a second end of the feeding trough (121) is connected to the conveying clamp arm (311); The expansion mechanism (130) comprises an expansion pressure head (131) and an expansion driving member (132), wherein the expansion pressure head (131) is adapted to extend between the two conveying clamp arms (311) under the drive of the expansion driving member (132) to expand the distance between the two conveying clamp arms (311).

5. The bushing detection device according to claim 4, characterized in that: The feeding module (100) further comprises a first limiting push rod (141) and a first limiting driving member (142), wherein the first limiting push rod (141) is arranged to pass through the feeding track (120), and the first limiting push rod (141) is adapted to extend into the feeding trough (121) under the drive of the first limiting driving member (142); and / or, The feeding module (100) further comprises a second limiting push rod (151) and a second limiting driving member (152); the second limiting push rod (151) and the feeding trough (121) are respectively arranged on two sides of the conveying module (300) along the first direction; the second limiting push rod (151) is adapted to be extended and retracted under the drive of the second limiting driving member (152) and to limit the bushing along the first direction.

6. The bushing detection device according to any one of claims 1 to 3, characterized in that: The conveying module (300) further comprises a conveying turntable (320), a plurality of the conveying mechanisms (310) are arranged around the rotation center of the conveying turntable (320), and the feeding module (100) and the go / no-go gauge detection module (200) are respectively adapted to one of the plurality of the conveying mechanisms (310).

7. The bushing detection device according to claim 6, characterized in that: The bushing detection device further comprises a first visual module (400) and a second visual module (500), wherein the first visual module (400) and the second visual module (500) are respectively adapted to one of the plurality of conveying mechanisms (310); The first visual module (400) comprises a first detection camera (410), and the second visual module (500) comprises a second detection camera (510). The first detection camera (410) and the second detection camera (510) are respectively located on both sides of the conveying module (300) along the first direction, and the fields of view of both cameras are oriented toward the conveying clamping arm (311) to capture an image of the end of the bushing.

8. The bushing detection device according to claim 7, characterized in that: The first visual module (400) further includes a third detection camera (420), and the second visual module (500) further includes a fourth detection camera (520); The third detection camera (420) is arranged on one side of the first detection camera (410) and its field of view is toward the side wall of the bushing, and is suitable for capturing an image of the side wall of the first side of the bushing; the fourth detection camera (520) is arranged on one side of the second detection camera (510) and its field of view is toward the side wall of the bushing, and is suitable for capturing an image of the side wall of the second side of the bushing, and the first side is arranged opposite to the second side.

9. The bushing detection device according to claim 7, characterized in that: The bushing detection device further comprises an NG pushing module (600), wherein the NG pushing module (600) is adapted to one of the plurality of conveying mechanisms (310) and is located downstream of the first vision module (400) and the second vision module (500) as a whole; The NG pushing module (600) includes an NG pressure head (610), a pressure head driving component (620) and a second NG unloading frame (630). The NG pressure head (610) and the second NG unloading frame (630) are respectively located on both sides of the conveying module (300) along the first direction. The NG pressure head (610) is suitable for pushing the sleeve under the drive of the pressure head driving component (620) so that the sleeve enters the second NG unloading frame (630).

10. A bushing production line, characterized in that: Comprising the bushing detection device as described in any one of claims 1 to 9.

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