An intelligent automatic visual inspection device for die castings

Abstract

The present invention relates to the technical field of visual inspection equipment, and specifically discloses an intelligent automatic visual inspection device for die-castings, including a working frame and a detection frame fixedly connected to the working frame, the detection frame being equipped with a detection mechanism for detecting die-casting workpieces; a plurality of groups of bearing seats are slidably connected to the working frame, and each of the bearing seats is equipped with a support cylinder; the support cylinder is provided with a support mechanism for supporting the die-casting workpiece, and the support cylinder is also provided with a fixing mechanism for fixing the die-casting workpiece; and the working frame is provided with a driving member for driving the bearing seat to slide. The use of a switching mechanism can completely passively switch the fixation of different positions of the die-casting workpiece, and after the switching, the detection mechanism is used to perform a full range of detection on the die-casting workpiece, which greatly improves the detection accuracy of the detection device. At this time, there is no need to disassemble and install the die-casting workpiece for secondary detection, which is suitable for wide promotion and use.

Description

Technical Field

[0001] The present invention relates to the technical field of visual inspection equipment, and in particular to an intelligent automatic visual inspection device for die castings. Background Art

[0002] The wheel hub is a cylindrical metal part with the inner profile of the tire supporting the tire, and the center is mounted on the shaft. The wheel hub is generally made of aluminum alloy by die-casting. Aluminum die-casting is a pressure-casting part. It uses a pressure-casting mechanical die-casting machine with a casting mold installed. The heated liquid aluminum or aluminum alloy is poured into the inlet of the die-casting machine, and the die-casting machine is die-cast to cast aluminum parts or aluminum alloy parts of the shape and size limited by the mold. In order to improve the yield rate of die-casting parts and to eliminate defective products in time, visual inspection devices are usually used to inspect the die-casting parts after die-casting to improve production efficiency and product quality.

[0003] Visual inspection is to use machines to replace human eyes to make measurements and judgments. Visual inspection refers to the process of converting the captured target into image signals through machine vision products (i.e. image capture devices, which are divided into CMOS and CCD), and transmitting them to a dedicated image processing system, which converts them into digital signals based on pixel distribution, brightness, color and other information; the image system performs various operations on these signals to extract the characteristics of the target, and then controls the equipment action on site based on the results of the judgment. It is a valuable mechanism for production, assembly or packaging.

[0004] In the prior art, there is a Chinese patent with application number 202321190241.8, authorization publication number CN219935706U, and invention name "A detection device for wheel hub production". The above patent discloses a detection device for wheel hub production, including a workbench, a rotating shaft is vertically rotatably inserted at the center position of the top of the workbench, a fixing table is coaxially provided on the top of the rotating shaft, a wheel hub body is coaxially provided laterally on the top, a fastening assembly for fixing the wheel hub body is provided on the top of the wheel hub body, a bearing seat is rotatably sleeved on the outer circumference of the rotating shaft, the bearing seat is fixed to the top of the workbench, and a driving assembly for controlling the rotation of the wheel hub body is provided at the bottom of the rotating shaft.

[0005] Another example is a Chinese patent with application number 202320307645.4, authorization publication number CN220399232U, and name "A visual inspection device with high detection accuracy". The above patent discloses a visual inspection device with high detection accuracy, including a winding roller and an upper pressure conveyor roller, a rubber pressure roller is arranged on the upper side of the upper pressure conveyor roller, and the rubber pressure roller is arranged between two support plates, a distance detection sensor for detecting the up and down movement distance of the rubber pressure roller is connected to the top of the support plate, an upper cover shell and a lower cover shell are fixedly connected between the two support plates, a detection display for displaying detection data of the distance detection sensor and the light source sensor is connected to the front side of the support plate, and a visual camera for real-time video recording of the displayed data is arranged on the front side of the detection display.

[0006] In the prior art, such as the above-mentioned patent, when inspecting the die-casting, the die-casting is usually transported to a predetermined area before the inspection is performed, and in order to improve the inspection efficiency, the die-casting is usually driven to rotate, and the inspection component performs a full range of inspections on the die-casting during the rotation process. It is known that when the die-casting needs to be driven to rotate, a fixing device is required to fix the die-casting, and when the fixing device fixes the die-casting, a detection blind spot will be generated. At this time, it is difficult for the inspection component to perform a full range of inspections on the die-casting within one workflow. The die-casting can only be disassembled from the fixing device, and then a secondary inspection is performed on the detection blind spot generated by the blocking of the fixing device, which has certain shortcomings. Summary of the invention

[0007] The object of the present invention is to provide an intelligent automatic visual inspection device for die castings to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an intelligent automatic visual inspection device for die-castings, comprising a working frame and an inspection frame fixedly connected to the working frame, wherein the inspection frame is equipped with an inspection mechanism for inspecting the die-casting workpiece; a plurality of groups of bearing seats are slidably connected to the working frame, and a supporting tube is installed on each of the bearing seats; a supporting mechanism for supporting the die-casting workpiece is arranged on the supporting tube, and a fixing mechanism for fixing the die-casting workpiece is also arranged on the supporting tube, and the fixing mechanism and the supporting mechanism are connected by a switching mechanism; and a driving member for driving the bearing seat to slide is arranged on the working frame; original state: the die-casting workpiece is mounted on the supporting mechanism, and the inspection mechanism performs inspection operation on the top of the die-casting workpiece; when the driving member drives the bearing seat to slide under the inspection frame, at this moment, the switching mechanism drives the fixing mechanism to fix the inner wall of the die-casting workpiece, and drives the supporting mechanism to retract into the supporting tube, and the inspection mechanism detects the part blocked by the supporting mechanism before retracting into the supporting tube, so as to reduce the detection blind spot.

[0009] Furthermore, an intermittent abutment member is provided between the support tube and the switching mechanism, and the switching mechanism drives the support tube to drive the die-casting workpiece to rotate on the bearing seat through the intermittent abutment member.

[0010] Furthermore, the support mechanism includes a plurality of support plates slidably connected to the side walls of the support tube, a driving block is vertically slidably connected inside the support tube, and each support plate is rotatably connected to the driving block via a corresponding pulling rod.

[0011] Furthermore, the switching mechanism includes a threaded rod rotatably connected to the inside of the support tube, the threaded rod is provided with a first threaded portion and a second threaded portion with opposite threads at the upper and lower ends respectively, and the drive block is threadedly connected to the threaded rod through the first threaded portion; a drive unit for driving the threaded rod to rotate is provided on the work frame.

[0012] Furthermore, the driving unit comprises a driving rod fixedly connected to the bottom of the threaded rod, a spur gear is mounted on the driving rod, a first rack is fixedly connected to the working frame, and the spur gear is intermittently meshed with the first rack.

[0013] Furthermore, the fixing mechanism includes a bearing tube vertically slidably connected inside the supporting tube, and the bearing tube is threadedly connected to the threaded rod through a second threaded portion; a plurality of groups of abutment plates are slidably connected to the side wall of the bearing tube, and a plurality of groups of triggering portions are vertically slidably connected to the side wall of the bearing tube, and each abutment plate is connected to the triggering portion through a corresponding connecting rod; and a positioning spring is arranged between the triggering portion and the bearing tube, and the triggering portion is slidably connected to the supporting tube through a triggering groove.

[0014] Furthermore, the intermittent abutment member includes a trigger rod fixedly connected to the driving rod, and a rotation groove is opened inside the support tube. When the driving rod rotates, the trigger rod is driven to rotate in the rotation groove. An abutment block is fixedly connected in the rotation groove, and the trigger rod intermittently abuts against the abutment block.

[0015] Furthermore, an extension portion is provided on the top of each support plate to improve the stability of the die-cast workpiece during installation; the extension portion includes an extension plate, which is slidably connected to the support plate through an adapter groove, and an abutment spring is provided between the extension plate and the adapter groove.

[0016] Furthermore, a second rack is provided on the working frame, and the second rack is located on a side opposite to the first rack, and the spur gear is intermittently meshed with the second rack.

[0017] Furthermore, a computer display component is installed on the detection frame.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: the intelligent automatic visual inspection device for die-casting parts, through the cooperation among the working frame, the inspection mechanism, the support cylinder, the support mechanism, the fixing mechanism and the switching mechanism, when the present application is performing the inspection operation, when the driving member drives the bearing seat to slide, the switching mechanism can be used to completely passively switch the fixation of different positions of the die-casting workpiece, and after the switching, the inspection mechanism is used to perform a full range of inspections on the die-casting workpiece, which greatly improves the inspection accuracy of the inspection device. At this moment, there is no need to disassemble and install the die-casting workpiece for secondary inspection, so the working efficiency of the entire inspection device can be greatly improved, and it is suitable for wide promotion and use. At the same time, the switching is completely passive, which can also save costs and energy consumption, and further meet the work needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of the overall structure from another perspective provided by an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of the structure of the installation method of the detection mechanism provided in an embodiment of the present invention;

[0023] Figure 4 A schematic diagram of the first rack installation position structure provided by an embodiment of the present invention;

[0024] Figure 5 A schematic diagram of the second rack installation position structure provided by an embodiment of the present invention;

[0025] Figure 6 A schematic diagram of the structure of a die-casting workpiece provided in an embodiment of the present invention installed on a bearing seat;

[0026] Figure 7 A schematic structural diagram of another perspective of a die-casting workpiece installation method provided by an embodiment of the present invention;

[0027] Figure 8 A schematic diagram of the structure of the support mechanism installation method provided in an embodiment of the present invention;

[0028] Fig. 9 A schematic diagram of a top view of the support tube provided in an embodiment of the present invention;

[0029] Fig.10 for Fig. 9 Schematic diagram of the AA section structure along the middle edge;

[0030] Fig.11 A schematic diagram of the front view structure of a support tube provided in an embodiment of the present invention;

[0031] Fig.12 for Fig.11 Schematic diagram of the cross-sectional structure along the middle edge BB;

[0032] Fig.13 A schematic diagram of the internal structure of a support tube provided in an embodiment of the present invention;

[0033] Fig.14 A schematic diagram of a partial structure of a switching mechanism provided in an embodiment of the present invention;

[0034] Fig.15 A schematic diagram of a partial structure of a fixing mechanism provided in an embodiment of the present invention;

[0035] Fig.16 A schematic diagram of the structure of the buffer installation method provided in an embodiment of the present invention.

[0036] Explanation of reference numerals: 1. work frame; 2. detection frame; 3. computer display assembly; 4. first detection member; 5. second detection member; 6. third detection member; 7. bearing seat; 8. support cylinder; 9. die-casting workpiece; 91. first contact station; 92. second contact station; 10. driving member; 11. supporting mechanism; 111. supporting plate; 112. connecting block; 113. pulling rod; 114. driving block; 115. receiving groove; 12. switching mechanism; 121. threaded rod; 122. first threaded portion; 123. second threaded portion; 124. driving member Rod; 125, spur gear; 126, first rack; 127, second rack; 13, extension portion; 131, extension plate; 132, adapter groove; 133, abutment spring; 14, fixing mechanism; 141, bearing tube; 142, abutment plate; 143, trigger portion; 144, positioning spring; 145, trigger groove; 146, connecting rod; 147, limiting portion; 15, intermittent abutment; 151, trigger rod; 152, rotating groove; 153, abutment block; 16, buffer member; 161, contact plate; 162, hinged plate; 163, buffer spring. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figure 1-16 The present invention provides a technical solution: an intelligent automatic visual inspection device for die-castings, comprising a working frame 1 and a detection frame 2 fixedly connected to the working frame 1, the detection frame 2 is equipped with a detection mechanism for detecting the die-casting workpiece 9; a plurality of groups of bearing seats 7 are slidably connected to the working frame 1, and each bearing seat 7 is equipped with a support cylinder 8; a supporting mechanism 11 for supporting the die-casting workpiece 9 is provided on the support cylinder 8, and a fixing mechanism 14 for fixing the die-casting workpiece 9 is also provided on the support cylinder 8, and the fixing mechanism 14 is connected to the supporting mechanism 11 through a switching mechanism 12; and a driving member 10 for driving the bearing seat 7 to slide is provided on the working frame 1.

[0039] Original state: the die-cast workpiece 9 is installed on the supporting mechanism 11, and the detecting mechanism detects the part of the die-cast workpiece 9 except the part blocked by the supporting mechanism 11; when the driving member 10 drives the supporting seat 7 to slide under the detecting frame 2, the switching mechanism 12 drives the supporting mechanism 11 to retract in the stroke inside the supporting tube 8, and fixes the inner wall of the die-cast workpiece 9 through the fixing mechanism 14, and the detecting mechanism detects the part of the die-cast workpiece 9 except the part blocked by the fixing mechanism 14, so as to reduce the detection blind angle.

[0040] Specifically, the die-casting intelligent automatic visual inspection device includes a working frame 1 and a detection frame 2 fixedly connected to the working frame 1, and multiple groups of anti-skid pads are arranged on the bottom of the working frame 1 to improve the stability of the entire detection device during the detection operation. Specifically, a detection mechanism for detecting the die-casting workpiece 9 is installed on the detection frame 2, wherein the detection mechanism includes a first detection member 4, a second detection member 5 and a third detection member 6, wherein the first detection member 4, the second detection member 5 and the third detection member 6 have the same structure and working principle, but the installation position is different. Taking the first detection member 4 as an example, the first detection member 4 includes a mounting bracket fixedly connected to the detection frame 2, and a detection camera is installed on the mounting bracket for detecting the die-casting workpiece 9. Among them, the detection camera is a CCD detection camera. In the security system, the image generation of the CCD camera is currently mainly from the CCD camera. CCD is the abbreviation of charge coupled device. It can convert light into electric charge and store and transfer the charge. It can also take out the stored charge to change the voltage. Therefore, it is an ideal CCD camera component. The CCD camera composed of it has the characteristics of small size, light weight, unaffected by magnetic fields, and anti-vibration and impact, and is widely used to meet work needs.

[0041] Specifically, the first detection member 4 is installed on one side of the detection frame 2. When the die-cast workpiece 9 passes the bottom of the detection frame 2, the first detection member 4 first performs a comprehensive detection on the top of the die-cast workpiece 9. The second detection member 5 is laterally fixedly connected to the detection frame 2, and can detect the side of the die-cast workpiece 9. The third detection member 6 is installed at the bottom of the detection frame 2, and is used to detect the bottom of the die-cast workpiece 9. At the same time, the number of the first detection member 4, the second detection member 5 and the third detection member 6 can be selected according to work needs, which can further improve the detection efficiency of the detection device.

[0042] At the same time, multiple groups of bearing seats 7 are slidably connected to the workbench 1, and a support tube 8 is installed on each bearing seat 7; a support mechanism 11 for supporting the die-cast workpiece 9 is provided on the support tube 8. Therefore, during use, when the die-cast workpiece 9 is installed on the support tube 8, the support mechanism 11 is located at the bottom of the die-cast workpiece 9 at this moment. Using the support mechanism 11 to support the die-cast workpiece 9 can improve the stability of the die-cast workpiece 9 when the bearing seat 7 slides. More specifically, a program can be set to adjust the sliding speed of the bearing seat 7. On the one hand, it can avoid the die-cast workpiece 9 from falling, and on the other hand, it can improve the detection accuracy of the detection device. Specifically, the die-cast workpiece 9 includes a second contact station 92, and the second contact station 92 is located inside the die-cast workpiece 9. The support mechanism 11 supports the entire die-cast workpiece 9 by abutting against the second contact station 92. Therefore, during use, when the bearing seat 7 drives the die-cast workpiece 9 to slide toward the side of the detection frame 2, it will first pass through the first detection member 4 at this moment. The first detection member 4 performs a comprehensive detection on the top of the die-cast workpiece 9, and the support mechanism 11 is located at the bottom of the die-cast workpiece 9 to support the operation. The support mechanism 11 abuts against the second contact station 92 on the die-cast workpiece 9, so it will block the second contact station 92, resulting in a detection blind spot. Even if there is a detection device at the bottom of the die-cast workpiece 9 at this time, it is impossible to perform a comprehensive detection on the bottom of the die-cast workpiece 9. A fixing mechanism 14 for fixing the die-cast workpiece 9 is also provided on the support cylinder 8. More specifically, a first contact station 91 is provided inside the die-cast workpiece 9, and the fixing mechanism 14 fixes the first contact station 91, thereby fixing the entire die-cast workpiece 9. At the same time, the fixing mechanism 14 and the support mechanism 11 are connected by a switching mechanism 12. That is, when the fixing mechanism 14 is used to fix the first contact station 91 on the die-cast workpiece 9, the switching mechanism 12 is used to drive the supporting mechanism 11 to retract into the supporting tube 8. At this time, the area previously blocked by the supporting mechanism 11 is exposed, and the third detection component 6 is used to perform detection operations on the bottom of the die-cast workpiece 9, which greatly improves the working efficiency of the entire detection device when in use, and at the same time, no secondary detection operation is required.

[0043] At the same time, a driving member 10 for driving the bearing seat 7 to slide is provided on the working frame 1. Preferably, the driving member 10 includes a driving motor installed on the bottom of the working piece, a driving screw is rotatably connected on the working frame 1, the bearing seat 7 is threadedly connected to the driving screw, and the driving motor is coaxially connected to the driving screw through a coupling. During use, the driving screw is driven to rotate by the driving motor, so that the bearing block can be driven to slide. It is known that the working frame 1 is a prior art, and the working frame 1 in this application is not fully drawn, but only shows the working principle of the bearing seat 7.

[0044] More specifically, in the original state of the present application: the die-cast workpiece 9 is mounted on the supporting mechanism 11, and the detection mechanism performs detection operations on the top of the die-cast workpiece 9 to meet work needs.

[0045] When the driver 10 drives the bearing seat 7 to slide under the detection frame 2, the switching mechanism 12 drives the fixing mechanism 14 to fix the inner wall of the die-cast workpiece 9, and drives the support mechanism 11 to retract inside the support tube 8. The detection mechanism detects the part of the support mechanism 11 that is blocked before retracting inside the support tube 8 to reduce the detection blind spot. Therefore, in the present application, when the driver 10 drives the bearing seat 7 to slide, the switching mechanism 12 can be used to completely passively switch the fixation of different positions of the die-cast workpiece 9, and the detection mechanism is used to perform a full range of detection on the die-cast workpiece 9 after the switch, which greatly improves the detection accuracy of the detection device. At this moment, there is no need to disassemble and install the die-cast workpiece 9 for secondary detection, so the working efficiency of the entire detection device can be greatly improved, which is suitable for wide promotion and use. At the same time, the switching is completely passive, which can also save costs and energy consumption, and further meet the work needs.

[0046] In the embodiment provided by the present invention, an intermittent abutment 15 is provided between the support tube 8 and the switching mechanism 12, and the switching mechanism 12 drives the support tube 8 and the fixing mechanism 14 to drive the die-cast workpiece 9 to rotate on the bearing seat 7 through the intermittent abutment 15. Therefore, during use, when the fixing mechanism 14 fixes the die-cast workpiece 9, when the switching mechanism 12 drives the support tube 8 to rotate through the intermittent abutment 15, the die-cast workpiece 9 will be driven to rotate through the fixing mechanism 14. Since the second detection member 5 is laterally fixedly connected to the detection frame 2, the side of the die-cast workpiece 9 can be detected to meet the work needs. At the same time, when the switching mechanism 12 is not in contact with the support tube 8, the switching mechanism 12 cannot drive the support tube 8 to rotate on the bearing seat 7 at this moment, and can only switch between the fixing mechanism 14 and the support mechanism 11.

[0047] In the embodiment provided by the present invention, the support mechanism 11 includes a plurality of groups of support plates 111 slidably connected to the side wall of the support tube 8, a driving block 114 is vertically slidably connected inside the support tube 8, and each support plate 111 is rotatably connected to the driving block 114 through a corresponding pulling rod 113. Specifically, a connecting block 112 is fixedly connected to the bottom of each support plate 111, and the pulling rod 113 is hinged between the driving block 114 and the connecting block 112. When the driving block 114 slides downward, the supporting plate 111 is driven to slide into the inside of the support tube 8 through the pulling rod 113, that is, the plurality of supporting plates 111 are mutually contracted. Conversely, when the driving block 114 slides upward, the plurality of supporting plates 111 are driven to expand. Specifically, a receiving groove 115 is opened on the support cylinder 8, wherein the receiving groove 115 is adapted to the support plate 111. When the driving block 114 slides downward, the multiple groups of support plates 111 will shrink inside the receiving groove 115. At this moment, the support plate 111 will not block the second contact station 92 on the die-cast workpiece 9, thereby facilitating all-round inspection of the entire die-cast workpiece 9 to meet work needs.

[0048] In the embodiment provided by the present invention, the switching mechanism 12 includes a threaded rod 121 rotatably connected to the inside of the support tube 8, and the upper and lower ends of the threaded rod 121 are respectively provided with a first threaded portion 122 and a second threaded portion 123 with opposite threads, and the driving block 114 is threadedly connected to the threaded rod 121 through the first threaded portion 122. The pitch between the first threaded portion 122 and the second threaded portion 123 can be designed according to work needs, and a driving unit for driving the threaded rod 121 to rotate is provided on the work frame 1. Therefore, during use, when the driving unit drives the threaded rod 121 to rotate counterclockwise, the rotation of the threaded rod 121 will drive the driving block 114 to slide downward, and when the driving block 114 slides downward, it will drive the support plate 111 to slide into the inside of the support tube 8 through the pull rod 113, that is, multiple groups of support plates 111 shrink mutually.

[0049] In the embodiment provided by the present invention, the driving unit includes a driving rod 124 fixedly connected to the bottom of the threaded rod 121. More specifically, the driving rod 124 is rotatably connected to the bearing seat 7, so the threaded rod 121 is rotatably connected to the bearing seat 7 through the driving rod 124. The driving rod 124 is provided with a spur gear 125, and the work frame 1 is fixedly connected with a first rack 126, and the spur gear 125 is intermittently meshed with the first rack 126. Specifically, when the driving member 10 drives the bearing seat 7 to slide, the bearing seat 7 will drive the spur gear 125 on the driving rod 124 to mesh with the first rack 126. After the spur gear 125 is meshed with the first rack 126, as the bearing seat 7 slides horizontally, the threaded rod 121 will be driven to rotate counterclockwise, and the rotation of the threaded rod 121 will drive the driving block 114 to slide downward. When the driving block 114 slides downward, the support plate 111 will be driven to slide into the inside of the support tube 8 through the pull rod 113, that is, the multiple groups of support plates 111 will contract with each other to meet the work needs. At this moment, the support plate 111 will not block the second contact station 92 on the die-cast workpiece 9, thereby facilitating the all-round detection of the entire die-cast workpiece 9 to meet the work needs.

[0050] In the embodiment provided by the present invention, the fixing mechanism 14 includes a bearing tube 141 vertically slidably connected inside the supporting tube 8, and the bearing tube 141 is threadedly connected to the threaded rod 121 through the second threaded portion 123. Therefore, during use, when the threaded rod 121 rotates, the bearing tube 141 is driven to slide vertically through the second threaded portion 123. And there are multiple groups of abutment plates 142 slidably connected to the side wall of the bearing tube 141. Specifically, there can be four abutment plates 142, which are arranged in a circular array around the bearing tube 141. At the same time, there are multiple groups of triggering parts 143 vertically slidably connected to the side wall of the bearing tube 141, and each abutment plate 142 is connected to the triggering part 143 through a corresponding connecting rod 146. Therefore, when the triggering part 143 slides, the abutment plate 142 is driven to slide horizontally through the connecting rod 146. Specifically, a through groove is provided inside the bearing tube 141, and the abutment plate 142 is slidably connected to the bearing tube 141 through the through groove. At the same time, a positioning spring 144 is provided between the trigger portion 143 and the bearing tube 141. The elastic force of the positioning spring 144 drives the abutment plate 142 to be located inside the bearing tube 141. In the absence of external force, the elastic force of the positioning spring 144 drives the multiple groups of abutment plates 142 to retract inside the bearing tube 141 and will not contact the die-cast workpiece 9. At the same time, the trigger portion 143 is slidably connected to the support tube 8 through the trigger groove 145 to meet the working needs. In actual use, when the threaded rod 121 rotates, it will drive the bearing tube 141 to slide vertically through the second threaded portion 123. At this moment, the bearing tube 141 drives the trigger portion 143 and the abutment plate 142 to slide upward synchronously. More specifically, the trigger portion 143 slides inside the trigger groove 145 inside the support tube 8. When the trigger part 143 abuts against the top of the trigger groove 145, the trigger part 143 stops sliding upwards, and the bearing tube 141 drives the abutment plate 142 to continue to slide upwards. Under the action of the connecting rod 146, the abutment plate 142 will slide to the outside of the bearing tube 141. As the abutment plate 142 continues to slide, the friction force of the abutment plate 142 will be used to fix the first contact position 91 on the die-casting workpiece 9, thereby achieving the fixation of the die-casting workpiece 9 to meet the work needs. During the rotation of the threaded rod 121, the driving block 114 will be driven to slide downwards. When the driving block 114 slides downwards, the support plate 111 will be driven to slide inside the support tube 8 through the pull rod 113, that is, the multiple groups of support plates 111 will contract with each other to meet the work needs. At this moment, the support plate 111 will not block the second contact position 92 on the die-casting workpiece 9, and the die-casting workpiece 9 will be fixed by the fixing mechanism 14, thereby facilitating the all-round detection of the entire die-casting workpiece 9 to meet the work needs. At the same time, the pitch of the first threaded portion 122 is different from that of the second threaded portion 123, which can ensure that: when the abutment plate 142 fails to effectively fix the die-cast workpiece 9 in contact with the inner wall of the workpiece, the support plate 111 is not completely retracted inside the support tube 8, thereby avoiding the risk of the die-cast workpiece 9 falling off.The abutment plate 142 can be made of rubber, silicone or other elastic materials, so that the abutment plate 142 can produce a certain deformation after abutting the die-casting workpiece 9, and can ensure that the multiple groups of support plates 111 can be completely retracted inside the support tube 8. At the same time, the abutment plate 142 is in an arc shape, which is better adapted to the first contact station 91 on the die-casting workpiece 9, and fits more closely with the first contact station 91 on the die-casting workpiece 9. At the same time, anti-slip stripes are provided on the abutment plate 142 to further increase the friction between the abutment plate 142 and the die-casting workpiece 9, and the use effect is better. At the same time, it can be imagined that a limiting portion 147 is provided between the trigger portion 143 and the bearing tube 141 to improve the stability of the trigger portion 143 when it slides vertically. The limiting portion 147 includes a limiting strip fixedly connected to the trigger portion 143, a vertical groove is provided on the bearing tube 141, and the limiting strip is vertically slidably connected in the vertical groove to improve the stability of the trigger portion 143 when it slides vertically, and the use effect is better.

[0051] In the embodiment provided by the present invention, the intermittent abutment member 15 includes a trigger rod 151 fixedly connected to the driving rod 124, and a rotation groove 152 is provided inside the support tube 8. When the driving rod 124 rotates, the trigger rod 151 is driven to rotate in the rotation groove 152. An abutment block 153 is fixedly connected in the rotation groove 152, and the trigger rod 151 intermittently abuts against the abutment block 153. At this moment, when the spur gear 125 just meshes with the first rack 126, as the bearing seat 7 slides, the spur gear 125 will rotate counterclockwise at this moment, and the spur gear 125 will drive the driving rod 124 to rotate counterclockwise when rotating, and the driving rod 124 will drive the trigger rod 151 to rotate inside the rotation groove 152 during the rotation process. When the driving rod 124 rotates counterclockwise by more than 350°, it will abut against the abutment block 153. At this moment, when the spur gear 125 continues to mesh with the first rack 126, the spur gear 125 drives the driving rod 124 to continue to rotate counterclockwise. At this moment, the trigger rod 151 will drive the supporting tube 8 to rotate counterclockwise through the abutment block 153. Since the abutment plate 142 is abutting against the first contact station 91 of the die-cast workpiece 9 at this moment, the die-cast workpiece 9 will be driven to rotate when the supporting tube 8 rotates. The remaining length of the first rack 126 is sufficient to make the die-cast workpiece 9 rotate by more than 360° and less than 370°. At this moment, the second detection component 5 is laterally fixedly connected to the detection frame 2, and can detect the side of the die-cast workpiece 9, which meets the working needs and greatly improves the detection efficiency of the entire detection device. At the same time, with the sliding of the bearing seat 7 and the cooperation of the intermittent abutment 15, the rotation of the die-cast workpiece 9 can be achieved passively without setting a driving source to actively drive the die-cast workpiece 9 to rotate, which can save costs and energy consumption and further meet work needs.

[0052] In another embodiment provided by the present invention, a buffer 16 is provided on the abutment plate 142, wherein the buffer 16 includes a contact plate 161, the contact plate 161 and the abutment plate 142 are connected by a hinge plate 162, and the hinge plate 162 is movably provided on the abutment plate 142, the hinge plate 162 can improve the stability of the connection between the contact plate 161 and the abutment plate 142, and a buffer spring 163 is provided between the contact plate 161 and the abutment plate 142, when the contact plate 161 abuts the first contact station 91 on the die-casting workpiece 9, as the abutment plate 142 continues to slide, the contact plate 161 will be driven to continuously abut the first contact station 91 of the die-casting workpiece 9, and the first contact station 91 on the die-casting workpiece 9 will be fixed by the buffer spring 163, and the use effect is better. At this moment, when the driving rod 124 needs to drive the support cylinder 8 to rotate more than 360°, the pressure will be released by squeezing the buffer spring 163 to avoid motion interference.

[0053] In the embodiment provided by the present invention, an extension portion 13 is provided on the top of each support plate 111 to improve the stability of the die-cast workpiece 9 during installation; the extension portion 13 includes an extension plate 131, and the extension plate 131 is slidably connected to the support plate 111 through an adapter groove 132, and an abutment spring 133 is provided between the extension plate 131 and the adapter groove 132. Therefore, during use, when the driving rod 124 needs to drive the support tube 8 to rotate more than 360°, the extension plate 131 will abut against the inside of the storage groove 115 at this moment, and when the support plate 111 continues to slide, it will drive the extension plate 131 to shrink in the adapter groove 132, thereby squeezing the abutment spring 133. At the same time, the space of the extension plate 131 and the storage groove 115 can be designed according to the needs of the working environment.

[0054] In the embodiment provided by the present invention, a second rack 127 is provided on the work frame 1. The second rack 127 is located on the side opposite to the first rack 126, and the spur gear 125 is intermittently meshed with the second rack 127. Therefore, after the detection is completed, the driving member 10 continues to drive the bearing seat 7 to slide a certain distance, and the spur gear 125 at this moment will mesh with the second rack 127. The second rack 127 is located on the side opposite to the first rack 126. Therefore, when the spur gear 125 is meshed with the second rack 127, it will drive the spur gear 125 to rotate clockwise. When the spur gear 125 rotates clockwise, it will drive the threaded rod 121 to rotate, and the driving block 114 is driven to slide upward through the threaded rod 121, which will drive the multiple groups of support plates 111. Slide out from the storage slot 115, and slide back to the second contact station 92 at the bottom of the die-cast workpiece 9, and support the entire die-cast part by contacting with the second contact station 92; synchronously, when the threaded rod 121 rotates, it will drive the bearing cylinder 141 to slide downward, and through the cooperation between the trigger part 143 and the connecting rod 146, drive the contact plate 142 to retract inside the bearing cylinder 141, release the fixation of the die-cast workpiece 9, greatly facilitate the subsequent unloading of the die-cast workpiece 9, and the use effect is better. If the die-cast workpiece 9 is still fixed by the fixing mechanism 14 after the detection is completed, the die-cast workpiece 9 needs to be unlocked before the die-cast workpiece 9 can be removed, which affects the unloading efficiency.

[0055] In the embodiment provided by the present invention, a computer display component 3 is installed on the detection frame 2, and the computer display component 3 is electrically connected to the detection mechanism. At the same time, a two-color indicator light is provided on the top of the detection frame 2, and the two-color indicator light is electrically connected to the computer display component 3. The computer display component 3 is used to analyze and detect each image transmitted by the detection mechanism. If the product is good, the two-color indicator light is controlled to light up green to indicate qualified, otherwise it is controlled to light up red to indicate defective product, which helps the operator to quickly identify the product inspection results.

[0056] It should be noted that the electrical equipment involved in this application can be powered by batteries or external power supply.

[0057] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent automatic visual inspection device for die castings, comprising a working frame (1) and a detection frame (2) fixedly connected to the working frame (1), wherein a detection mechanism for detecting die casting workpieces (9) is installed on the detection frame (2), characterized in that: The working frame (1) is slidably connected to a plurality of groups of bearing seats (7), and each of the bearing seats (7) is mounted with a supporting cylinder (8); The support cylinder (8) is provided with a support mechanism (11) for supporting the die-cast workpiece (9), and the support cylinder (8) is also provided with a fixing mechanism (14) for fixing the die-cast workpiece (9), and the fixing mechanism (14) and the support mechanism (11) are transmission-connected via a switching mechanism (12); A driving member (10) for driving the bearing seat (7) to slide is provided on the working frame (1); Original state: the die-cast workpiece (9) is mounted on the support mechanism (11), and the detection mechanism performs detection operations on the top of the die-cast workpiece (9); When the driving member (10) drives the bearing seat (7) to slide under the detection frame (2), the switching mechanism (12) drives the fixing mechanism (14) to fix the inner wall of the die-cast workpiece (9) and drives the supporting mechanism (11) to retract into the supporting tube (8). The detection mechanism detects the portion of the supporting mechanism (11) that is blocked before it retracts into the supporting tube (8) to reduce the detection blind spot. An intermittent abutment member (15) is provided between the support cylinder (8) and the switching mechanism (12), and the switching mechanism (12) drives the support cylinder (8) to drive the die-casting workpiece (9) to rotate on the bearing seat (7) through the intermittent abutment member (15); The support mechanism (11) comprises a plurality of groups of support plates (111) slidably connected to the side wall of the support cylinder (8); a driving block (114) is vertically slidably connected inside the support cylinder (8); each support plate (111) is rotatably connected to the driving block (114) via a corresponding pulling rod (113); The switching mechanism (12) comprises a threaded rod (121) rotatably connected to the inside of the support tube (8); the threaded rod (121) is provided with a first threaded portion (122) and a second threaded portion (123) having opposite threads at upper and lower ends respectively; the driving block (114) is threadably connected to the threaded rod (121) via the first threaded portion (122); The working frame (1) is provided with a driving unit for driving the threaded rod (121) to rotate; The fixing mechanism (14) comprises a bearing tube (141) vertically slidably connected inside the supporting tube (8); the bearing tube (141) is threadedly connected to the threaded rod (121) via a second threaded portion (123); A plurality of groups of abutment plates (142) are slidably connected to the side wall of the bearing tube (141), and a plurality of groups of triggering parts (143) are vertically slidably connected to the side wall of the bearing tube (141), and each abutment plate (142) is connected to the triggering part (143) via a corresponding connecting rod (146); A positioning spring (144) is provided between the trigger portion (143) and the bearing tube (141), and the trigger portion (143) is slidably connected to the supporting tube (8) via the trigger groove (145).

2. The intelligent automatic visual inspection device for die castings according to claim 1 is characterized in that: The driving unit comprises a driving rod (124) fixedly connected to the bottom of the threaded rod (121), a spur gear (125) being mounted on the driving rod (124), a first rack (126) being fixedly connected to the working frame (1), and the spur gear (125) being intermittently meshed with the first rack (126).

3. The intelligent automatic visual inspection device for die castings according to claim 2 is characterized in that: The intermittent abutment member (15) comprises a trigger rod (151) fixedly connected to the driving rod (124); a rotation groove (152) is provided inside the support tube (8); when the driving rod (124) rotates, the trigger rod (151) is driven to rotate in the rotation groove (152); an abutment block (153) is fixedly connected in the rotation groove (152); and the trigger rod (151) intermittently abuts against the abutment block (153).

4. The intelligent automatic visual inspection device for die castings according to claim 1 is characterized in that: An extension portion (13) is provided on the top of each support plate (111) to improve the stability of the die-cast workpiece (9) during installation; The extension portion (13) comprises an extension plate (131), the extension plate (131) being slidably connected to the support plate (111) via an adapting groove (132), and an abutment spring (133) being provided between the extension plate (131) and the adapting groove (132).

5. The intelligent automatic visual inspection device for die castings according to claim 2 is characterized in that: The working frame (1) is provided with a second rack (127), the second rack (127) being located on a side opposite to the first rack (126), and the spur gear (125) is intermittently meshed with the second rack (127).

6. The intelligent automatic visual inspection device for die castings according to claim 1, characterized in that: A computer display component (3) is installed on the detection frame (2).

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