Bushing testing equipment and bushing production line

Abstract

The present invention discloses a bushing detection equipment and a bushing production line, the bushing detection equipment includes a feeding module, a go / no-go gauge detection module and a conveying module; the go / no-go gauge detection module is 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, the detection go / no-go gauge is suitable for moving along a first direction under the drive of the go / no-go gauge driving member; the conveying module is connected to the feeding module and the go / no-go gauge detection module, the conveying module includes at least one conveying mechanism, the conveying mechanism includes an elastic member and two conveying clamping arms, the two conveying clamping arms are suitable for engaging to clamp the bushing under the resetting elastic force of the elastic member, when the detection go / no-go gauge pushes the bushing, the conveying clamping arms adaptively open and close without hindering the movement of the bushing, effectively avoiding the detection go / no-go gauge from crushing the bushing or crushing the conveying module, and there is no need to set a large number of sensors and complex control logic to realize the coordinated action of the detection go / no-go gauge and the conveying clamping arm, thereby greatly reducing the production cost and maintenance cost of the bushing detection equipment.

Description

Technical Field

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

[0002] Bushings have dimensional requirements during the production process. Usually, they are manually inspected using go / no-go gauges or three-coordinate spot checks. In addition, the appearance of the bushings also requires manual inspection, which results in low efficiency.

[0003] Related technologies have proposed equipment for full inspection of go / no-go gauges, which usually requires the combination of multiple sensors to prevent the go / no-go gauges from crushing the bushings. 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. To this end, the present invention provides a bushing inspection device and bushing production line that effectively prevents the detection gauge from damaging the bushing or conveying module. This eliminates the need for a large number of sensors and complex control logic to coordinate the detection gauge with the conveying clamp arm, significantly reducing the production and maintenance costs of the bushing inspection device.

[0005] In one aspect, an embodiment of the present invention provides a bushing detection device for bushing detection, comprising:

[0006] Feeding module;

[0007] a go / no-go gauge detection module, disposed downstream of the feeding module, the go / no-go gauge detection module comprising a go / no-go gauge and a go / no-go gauge driving member, the go / no-go gauge being adapted to move along a first direction under the drive of the go / no-go gauge driving member;

[0008] a conveying module connected to the feeding module and the go / no-go gauge detection module, adapted to convey the bushing, the conveying module comprising at least one conveying mechanism, the conveying mechanism comprising an elastic member and two conveying clamping arms capable of opening and closing, the two conveying clamping arms adapted to engage under the resetting elastic force of the elastic member to clamp the bushing;

[0009] The detection go / no-go gauge is located above the conveying module along the first direction.

[0010] According to some embodiments of the present invention, the go / no-go gauge detection module further includes a material picking claw and a material unloading mechanism, wherein the material picking claw is located below the conveying module along the first direction and is fixed relative to the go / no-go gauge driving member, and the material picking claw is adapted to clamp the bushing;

[0011] The blanking mechanism includes a blanking drive and multiple blanking frames arranged in sequence along the second direction. The blanking frames include at least an OK blanking frame and a first NG blanking frame. The multiple blanking frames are suitable for moving along the second direction under the drive of the blanking drive, and the second direction is set at an angle to the first direction.

[0012] According to some embodiments of the present invention, the material-retrieving clamping jaw is provided with a vacuum air hole, and the vacuum air hole is suitable for connecting the bushing with an external vacuum source to vacuum absorb the bushing.

[0013] According to some embodiments of the present invention, the feeding module includes a feeding tray, a feeding track and an expansion mechanism, the feeding track is provided with a feeding trough for the bushing to move, a first end of the feeding trough is connected to the feeding tray, and a second end of the feeding trough is connected to the conveying clamp arm;

[0014] The expansion mechanism includes an expansion pressure head and an expansion driving member. The expansion pressure head is suitable for extending into between the two conveying clamping arms under the drive of the expansion driving member to expand the distance between the two conveying clamping arms.

[0015] According to some embodiments of the present invention, the feeding module further includes a first limiting push rod and a first limiting driving member, wherein the first limiting push rod is provided through the feeding track, and the first limiting push rod is adapted to extend into the feeding trough under the drive of the first limiting driving member;

[0016] and / or,

[0017] The feeding module also includes a second limiting push rod and a second limiting driving member. The second limiting push rod and the feeding trough are respectively arranged on both sides of the conveying module along the first direction. The second limiting push rod is suitable for extending and retracting under the drive of the second limiting driving member and limiting the bushing along the first direction.

[0018] According to some embodiments of the present invention, the conveying module further includes a conveying turntable, a plurality of the conveying mechanisms are arranged around the rotation center of the conveying turntable, and the feeding module and the go / no-go gauge detection module are respectively adapted to one of the plurality of the conveying mechanisms.

[0019] According to some embodiments of the present invention, the bushing detection device further comprises a first vision module and a second vision module, wherein the first vision module and the second vision module are respectively adapted to one of the plurality of the conveying mechanisms;

[0020] The first vision module includes a first detection camera, and the second vision module includes a second detection camera. The first detection camera and the second detection camera are respectively located on both sides of the conveying module along the first direction, and the fields of view of both are facing the conveying clamping arm to capture the image of the sleeve end.

[0021] 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;

[0022] The third detection camera is arranged on one side of the first detection camera, and its field of view is toward the side wall of the bushing, and is suitable for capturing the image of the side wall of the first side of the bushing; the fourth detection camera is arranged on one side of the second detection camera, and its field of view is toward the side wall of the bushing, and is suitable for capturing the image of the side wall of the second side of the bushing, and the first side and the second side are arranged opposite to each other.

[0023] According to some embodiments of the present invention, the bushing detection device further comprises an NG pushing module, the NG pushing module being adapted to one of the plurality of conveying mechanisms and being located downstream of the first vision module and the second vision module as a whole;

[0024] The NG pushing module includes an NG pressure head, a pressure head driving member and a second NG blanking frame. Along the first direction, the NG pressure head and the second NG blanking frame are respectively located on both sides of the conveying module. The NG pressure head is suitable for pushing the sleeve under the drive of the pressure head driving member so that the sleeve enters the second NG blanking frame.

[0025] On the other hand, an embodiment of the present invention further provides a bushing production line, comprising the bushing detection device as described above.

[0026] The embodiments of the present invention have at least the following beneficial effects: the special form of using an elastic part to reset the conveying clamp arm to clamp the bushing ensures that qualified and unqualified bushings are clearly distinguished in status after detection (qualified ones remain in the conveying clamp arm, and unqualified ones are separated from the conveying clamp arm), and for unqualified bushings, when the detection go / no-go gauge pushes against the bushing, the conveying clamp arm adaptively opens and closes without hindering the movement of the bushing, effectively avoiding the detection go / no-go gauge from crushing the bushing or crushing the conveying module, and there is no need to set up a large number of sensors and complex control logic to achieve the coordinated action of the detection go / no-go gauge and the conveying clamp arm, which greatly reduces the production cost and maintenance cost of the bushing detection equipment.

[0027] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0029] Figure 1 This is one of the structural schematic diagrams of the bushing detection device according to an embodiment of the present invention;

[0030] Figure 2 This is a structural schematic diagram of a go / no-go gauge detection module of a bushing detection device according to an embodiment of the present invention;

[0031] Figure 3 This is a second structural diagram of the bushing detection device according to an embodiment of the present invention;

[0032] Figure 4 for Figure 3 A magnified view of the middle part A;

[0033] Figure 5 This is a schematic structural diagram of a first visual module and a second visual module of a bushing detection device according to an embodiment of the present invention;

[0034] Figure 6 for Figure 1 Enlarged view of part B in the middle.

[0035] Reference numerals:

[0036] 100, feeding module; 110, feeding tray; 120, feeding track; 121, feeding trough; 130, expansion mechanism; 131, expansion pressure head; 132, expansion drive; 141, first limit push rod; 142, first limit drive; 151, second limit push rod; 152, second limit drive;

[0037] 200, go / no-go gauge detection module; 210, go / no-go gauge detection; 220, go / no-go gauge drive; 230, material removal clamp; 240, material removal mechanism; 241, material removal drive; 242, material removal frame; 2421, OK material removal frame; 2422, first NG material removal frame;

[0038] 300, conveying module; 310, conveying mechanism; 311, conveying clamping arm; 320, conveying turntable;

[0039] 400, first visual module; 410, first detection camera; 420, third detection camera;

[0040] 500, second visual module; 510, second detection camera; 520, fourth detection camera;

[0041] 600, NG pushing module; 610, NG pressure head; 620, pressure head driving component; 630, second NG blanking frame. DETAILED DESCRIPTION

[0042] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0043] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0044] In the description of the present invention, "several" means one or more, "multiple" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, and "above," "below," and "within" are understood to include the number itself. The use of terms such as "first" and "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0045] In the description of the present invention, unless otherwise clearly defined, words such as “setting”, “installation” and “connection” should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above words in the present invention based on the specific content of the technical solution.

[0046] Please refer to Figure 1 and Figure 2 As shown, on the one hand, an embodiment of the present invention provides a bushing detection device for detecting bushings, comprising 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, and the go / no-go gauge detection module 200 comprises a go / no-go gauge 210 and a go / no-go gauge driving member 220, and the go / no-go gauge 210 is suitable for moving along a first direction under the drive of the go / no-go gauge driving member 220; the conveying module 300 is connected to the feeding module 100 and the go / no-go gauge detection module 200, and is suitable for conveying bushings, and the conveying module 300 comprises at least one conveying mechanism 310, and the conveying mechanism 310 comprises an elastic member (not shown in the figure) and two conveying clamping arms 311 that can be opened and closed, and the two conveying clamping arms 311 are suitable for engaging under the reset elastic force of the elastic member to clamp the bushing; the go / no-go gauge 210 for detecting along the first direction is located above the conveying module 300.

[0047] According to the bushing detection device of an embodiment of the present invention, taking the bushing that can pass the go gauge 210 as qualified as an example, the feeding module 100 conveys the bushing to between the conveying clamping arms 311 of the conveying module 300, and under the action of the reset elastic force of the elastic member, the conveying clamping arm 311 stably clamps the bushing to convey it to the go / no-go gauge detection module 200, and 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 (Z direction as shown in the figure) under the drive of the go / no-go gauge driving member 220. During this process, the bushing with qualified size will not contact the detection go / no-go gauge 210 and continue to remain between the conveying clamping arms 311, while the bushing with unqualified size will be pushed back by the detection go / no-go gauge 210. At this time, the power part provided by the go / no-go gauge driving member 220 is used to overcome the friction force formed on the surface of the bushing by the reset elastic force of the elastic member, so that the bushing moves along the first direction and disengages from the conveying clamping arm 311.

[0048] It should be noted that the bushing has size requirements during the production process. Usually, the go / no-go gauge is fully inspected or three-coordinate spot-checked manually, which has the problem of low efficiency. In addition, in the related art, the bushing is usually transported in the form of pneumatic clamps. It can be understood that the pneumatic clamps the bushing in a rigid manner (after clamping, the pneumatic clamp will not change its clamping state without being controlled by the controller). When it is used for automatic detection of go / no-go gauges, due to the rigid clamping of the pneumatic clamp, the go / no-go gauge 210 cannot move relative to the pneumatic clamp when pushing against the bushing, regardless of whether the bushing is of qualified size, and there is a problem of crushing the bushing. Therefore, the detection equipment for the pneumatic clamp needs to be additionally provided with a sensor to detect the movement of the go / no-go gauge 210 and the bushing. The controller controls the pneumatic clamp to release the bushing when the go / no-go gauge 210 pushes against the bushing based on the detection results. Accordingly, the above scheme greatly increases the manufacturing cost of the detection equipment.

[0049] According to the bushing detection equipment of the embodiment of the present invention, the bushing is clamped by resetting the conveying clamp arm 311 with an elastic part, so as to ensure that the qualified and unqualified bushings are clearly distinguished in status after the detection (the qualified ones remain in the conveying clamp arm 311, and the unqualified ones are separated from the conveying clamp arm 311). For the unqualified bushings, when the detection go / no-go gauge pushes against the bushing, the conveying clamp arm 311 adaptively opens and closes without hindering the movement of the bushing, thereby effectively avoiding the detection go / no-go gauge from crushing the bushing or crushing the conveying module 300. There is no need to set up a large number of sensors and complex control logic to realize the coordinated action of the detection go / no-go gauge and the conveying clamp arm 311, which greatly reduces the production cost and maintenance cost of the bushing detection equipment.

[0050] In this embodiment, the go / no-go gauge driving member is a cylinder; in other embodiments, it may also be a screw module, a slide module, etc.

[0051] 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.

[0052] In some embodiments, combined Figure 1 and Figure 2 As shown, the go / no-go gauge detection module 200 also includes a material picking clamp 230 and a material discharge 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 material discharge mechanism 240 includes a material discharge driving member 241 and a plurality of material discharge frames 242 arranged in sequence along the second direction. The material discharge frames 242 include at least an OK material discharge frame 2421 and a first NG material discharge frame 2422. The plurality of material discharge frames 242 are suitable for moving along the second direction under the drive of the material discharge driving member 241, and the second direction is set at an angle to the first direction.

[0053] In this embodiment, as described above, the qualified bushings will continue to be clamped in the conveying clamp arm 311, and the unqualified bushings will fall. For the qualified bushings, the material picking clamp 230 will clamp the bushings, and the conveying clamp arm 311 will continue to move. At this time, the bushings will be separated from the conveying clamp arm 311 and fixed to the material picking clamp 230. The blanking drive 241 drives the OK blanking frame 2421 to move to the bottom of the material picking clamp 230 to receive the qualified bushings that fall from the material picking clamp 230; for the unqualified bushings, the blanking drive 241 drives the first NG blanking frame 2422 to move to the bottom of the conveying clamp arm 311 to receive the unqualified bushings that fall from the conveying clamp arm 311.

[0054] It is understood that, because the qualified status of the liner cannot be determined before testing, in this embodiment, the first NG blanking frame 2422 is initially positioned below the conveying clamping arm 311 by default. When the liner detection device determines that the liner has not fallen from the conveying clamping arm 311 (the presence of the liner can be detected by the detection sensor), the picking jaw 230 is controlled to clamp the liner, and the blanking drive 241 is controlled to drive the OK blanking frame 2421 to move below the picking jaw 230.

[0055] In this embodiment, the qualified and unqualified bushings are collected separately by switching the blanking frame 242 to prevent mixing; and the bushing is separated from the conveying clamp arm 311 by using the material picking clamp 230 in combination with the conveying movement of the conveying module 300. There is no need to use complex control logic to achieve the coordinated work of the material picking clamp 230 and the conveying clamp arm 311, which effectively reduces the cost of the bushing detection equipment.

[0056] In this embodiment, the first direction (Z direction in the figure) and the second direction (X direction in the figure) are set vertically. In other embodiments, they can also be acute angles or obtuse angles to ensure that the blanking frame 242 can move to the bottom of the conveying module 300 to support the bushing.

[0057] In other embodiments, an OK blanking frame 2421 is set for the bushing that passes the go gauge in the go / no-go gauge 210, and a first NG blanking frame 2422 is set for the bushing that does not pass the go gauge; it is understandable that a third NG blanking frame 242 can also be set for the no-go gauge in the go / no-go gauge 210 to distinguish between the unqualified bushing due to the failure of the go gauge to pass and the unqualified bushing due to the failure of the no-go gauge to stop.

[0058] In this embodiment, the blanking driving component 241 is a cylinder. In other embodiments, it can also be a screw module, a slide module, etc.

[0059] In some embodiments, combined Figure 2 As shown, the material picking jaw 230 is provided with a vacuum air hole (not shown in the figure), which is suitable for connecting the liner with an external vacuum source to vacuum the liner. The vacuum adsorption method reduces excessive pressure damage to the liner surface caused by the material picking jaw 230 during the clamping process.

[0060] In some embodiments, combined Figure 1 、 Figure 3 and Figure 4 As shown, the feeding module 100 includes 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 movement of the bushing. The first end of the feeding trough 121 is connected to the feeding tray 110, and the second end of the feeding trough 121 is connected to the conveying clamping arm 311; the expansion mechanism 130 includes an expansion pressure head 131 and an expansion driving member 132. The expansion pressure head 131 is suitable for extending into between the two conveying clamping arms 311 under the drive of the expansion driving member 132 to expand the distance between the two conveying clamping arms 311.

[0061] In this embodiment, the expansion pressure head 131 is inserted into the conveying clamp arm 311 under the action of the expansion drive member 132, and pushes the two conveying clamp arms 311 to move backwards, so that the distance between the conveying clamp arms 311 is sufficient to accommodate the bushing. The bushings of the feed tray 110 move one by one along the feed trough 121 and move between the conveying clamp arms 311. The expansion drive member 132 drives the expansion pressure head 131 to retreat, and the conveying clamp arms 311 clamp the bushing under the action of the reset elastic force of the elastic member.

[0062] The expansion pressure head 131 is used to linearly move to open or clamp the conveying clamp arm 311 , thereby simplifying the structure of the bushing detection device and improving operational reliability.

[0063] In this embodiment, the expansion driving component 132 is a cylinder. In other embodiments, it can also be a screw module, a slide module, etc.

[0064] In other embodiments, the bushing may be loaded by a mobile module, and the mobile module may be a robotic arm or a transport gripper, etc.

[0065] In one embodiment, combined Figure 1 、 3 and Figure 4 As shown, the feeding module 100 also includes a first limiting push rod 141 and a first limiting driving member 142. The first limiting push rod 141 is arranged on the feeding track 120, and the first limiting push rod 141 is suitable for extending into the feeding trough 121 under the drive of the first limiting driving member 142.

[0066] In this embodiment, the first limiting push rod 141 extends into the feed trough 121 to push the bushing, so that the bushing is fixed in the feed trough 121, preventing the bushing in the feed trough 121 from continuing to move toward the conveying clamp arm 311 and affecting the loading process when the bushing is loaded in the conveying clamp arm 311.

[0067] In this embodiment, the first limit driving member 142 is a cylinder. In other embodiments, it can also be a screw module, a slide module, etc.

[0068] In one embodiment, the feeding module 100 also includes 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 both sides of the conveying module 300 along the first direction. The second limiting push rod 151 is suitable for extending and retracting under the drive of the second limiting driving member 152 and limiting the bushing along the first direction.

[0069] In this embodiment, the top end of the second limiting push rod 151 contacts the bushing, ensuring that each bushing entering the conveying clamp arm 311 is positioned uniformly and clamped stably. In this embodiment, the tail section of the feed chute 121 is vertically downward, allowing the bushing to fall under the action of gravity. The second limiting push rod 151 effectively prevents the bushing from falling.

[0070] In this embodiment, the second limit driving member 152 is a cylinder. In other embodiments, it can also be a screw module, a slide module, etc.

[0071] Of course, the above two embodiments can be used in combination to prevent the bushing in the feeding trough 121 from affecting the bushing loading in the conveying clamping arm 311 while ensuring the accuracy of each bushing loading and the stability of the loading process.

[0072] In some embodiments, combined Figure 1 and Figure 2 As shown, the conveying module 300 further includes a conveying turntable 320 , and 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 .

[0073] In this embodiment, the conveying turntable 320 realizes the reuse of the conveying mechanism 310, realizes the automation process of the bushing detection equipment, and the setting of multiple conveying mechanisms 310 enables the loading 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 equipment.

[0074] In this embodiment, the conveyor turntable 320 is equipped with five conveyor mechanisms 310: one adapted for the feeding module 100, one adapted for the go / no-go gauge detection module 200, and the remaining three adapted for other modules (the first vision module 400, the second vision module 500, and the NG push module 600 described below). Of course, the number of conveyor mechanisms 310 can be adaptively adjusted based on detection requirements.

[0075] In other embodiments, the conveying module 300 may also adopt the form of a conveying belt or a conveying track to convey the conveying mechanism 310 .

[0076] In some embodiments, combined Figure 1 and Figure 5 As 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 facing the conveying clamping arm 311 to capture the image of the end of the bushing.

[0077] 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.).

[0078] In this embodiment, the first visual module 400 and the second visual module 500 correspond to different conveying mechanisms 310, so that a supplementary light source can be set on the side of the conveying mechanism 310 corresponding to the first detection camera 410 facing 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 facing away from the second detection camera 510.

[0079] Currently, in other embodiments, based on 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 .

[0080] In some embodiments, combined Figure 1 and Figure 5 As shown, the first vision module 400 also includes a third detection camera 420, and the second vision 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 directed toward the side wall of the bushing, and is 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 directed toward the side wall of the bushing, and is suitable for capturing the image of the side wall of the second side of the bushing, and the first side and the second side are arranged opposite to each other.

[0081] It should be noted that the side wall of the bushing is usually provided with a sprue, and the position and height of the sprue will affect the assembly performance of the bushing.

[0082] In this embodiment, the third detection camera 420 captures an image of the first side of the bushing and the fourth detection 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.

[0083] In this embodiment, the third detection camera 420 is arranged on the side of the first detection camera 410 close to the second detection camera 510, and the fourth detection camera 520 is arranged 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, such as the third detection camera 420 can be arranged on the side of the first detection camera 410 close to the conveying module 300, and the fourth detection camera 520 is arranged on the side of the second detection camera 510 away from the conveying module 300, to ensure that a complete image of the side wall of the sleeve is obtained.

[0084] In some embodiments, combined Figure 1 and Figure 6 As shown, the bushing detection equipment also includes an NG pushing module 600, which is adapted to one of the multiple 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 member 620 and a second NG blanking frame 630. Along the first direction (Z direction as shown in the figure), the NG pressure head 610 and the second NG blanking frame 630 are respectively located on both sides of the conveying module 300, and the NG pressure head 610 is suitable for pushing the bushing under the drive of the pressure head driving member 620 to allow the bushing to enter the second NG blanking frame 630.

[0085] In this embodiment, when the bushing fails the inspection of any one of the first vision module 400 or the second vision module 500, when the conveying mechanism 310 is conveyed to the bottom of the NG pushing module 600, the pressure head driving member 620 drives the NG pressure head 610 to move and push the unqualified bushing, so that the bushing is separated from the conveying clamp arm 311 and falls into the second NG blanking frame 630. Through the NG pushing module 600, the unqualified products detected by the first vision module 400 or the second vision module 500 will not flow into the go / no-go gauge inspection module 200 for inspection, thereby improving the inspection efficiency of the bushing inspection equipment.

[0086] In other embodiments, a robotic arm, a handling gripper, etc. may also be provided to directly grab unqualified bushings.

[0087] On the other hand, an embodiment of the present invention further provides a bushing production line, comprising the bushing detection device as described in the above embodiment.

[0088] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the scope of the present invention.

Claims

1. A bushing detection device for bushing detection, characterized in that: include: Feeding module (100); a go / no-go gauge detection module (200) disposed downstream of the feeding module (100), the go / no-go gauge detection module (200) comprising a go / no-go gauge detection module (210) and a go / no-go gauge driving member (220), the go / no-go gauge detection module (200) being adapted to move along a first direction under the drive of the go / no-go gauge driving member (220); A conveying module (300) is connected to the feeding module (100) and the go / no-go gauge detection module (200), and is suitable for conveying the bushing. The conveying module (300) includes at least one conveying mechanism (310), and the conveying mechanism (310) includes an elastic member and two conveying clamping arms (311) that can be opened and closed. The two conveying clamping arms (311) are suitable for being combined under the resetting elastic force of the elastic member to clamp the bushing. The bushing that does not meet the size requirements can be separated from the conveying clamping arms (311) under the push of the go / no-go gauge (210); The detection go / no-go gauge (210) is located above the conveying module (300) along the first direction; The go / no-go gauge detection module (200) further comprises a material picking clamp (230) and a material discharge 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 blanking mechanism (240) includes a blanking drive (241) and a plurality of blanking frames (242) arranged in sequence along a second direction, wherein the blanking frames (242) include at least an OK blanking frame (2421) and a first NG blanking frame (2422), and the plurality of blanking frames (242) are suitable for moving along the second direction under the drive of the blanking drive (241), and the second direction is arranged at an angle to the first direction.

2. The bushing detection device according to claim 1, 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 vacuum absorb the bushing.

3. The bushing detection device according to claim 1 or 2, 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 clamping arm (311); The expansion mechanism (130) comprises an expansion pressure head (131) and an expansion drive member (132), wherein the expansion pressure head (131) is adapted to extend between the two conveying clamping arms (311) under the drive of the expansion drive member (132) to expand the distance between the two conveying clamping arms (311).

4. The bushing detection device according to claim 3, 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 provided 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 both 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.

5. The bushing detection device according to claim 1 or 2, characterized in that: The conveying module (300) further comprises a conveying turntable (320), a plurality of 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 conveying mechanisms (310).

6. The bushing detection device according to claim 5, characterized in that: The bushing detection device further comprises a first vision module (400) and a second vision module (500), wherein the first vision module (400) and the second vision module (500) are respectively adapted to one of the plurality of 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). 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 directed toward the conveying clamping arm (311) to capture an image of the end of the bushing.

7. The bushing detection device according to claim 6, characterized in that: The first vision module (400) further includes a third detection camera (420), and the second vision 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 directed 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 directed 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 and the second side are arranged opposite to each other.

8. The bushing detection device according to claim 6, characterized in that: The bushing detection device further comprises an NG pushing module (600), the NG pushing module (600) being adapted to one of the plurality of conveying mechanisms (310) and being located downstream of the first vision module (400) and the second vision module (500); The NG pushing module (600) includes an NG pressure head (610), a pressure head driving member (620) and a second NG blanking frame (630). Along the first direction, the NG pressure head (610) and the second NG blanking frame (630) are respectively located on both sides of the conveying module (300). The NG pressure head (610) is suitable for pushing the bushing under the drive of the pressure head driving member (620) so that the bushing enters the second NG blanking frame (630).

9. A bushing production line, characterized in that: The invention comprises a bushing detection device according to any one of claims 1 to 8.

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