Workpiece detecting and distributing mechanism

Abstract

The utility model provides a workpiece detecting and distributing mechanism which comprises a conveying roller frame, a sorting slide way, an air tap array unit and a detecting assembly, the conveying roller frame is composed of a track plate, driving rollers and supporting legs, and the driving rollers are arranged in parallel to form a conveying plane; the gas nozzle array unit is arranged at the top end of the track plate, and gas nozzles are arranged at equal intervals and jet towards the inlet of the sorting slideway; the detection assembly drives a laser detector to perform three-dimensional positioning through double-screw linkage of a vertical connecting rod and a transverse connecting rod, so that full-coverage scanning of the surface of a workpiece is realized; a material guiding unit is arranged on the inner side of the supporting leg, and a wedge-shaped double-fork plate is driven by an electric telescopic rod to be inserted into a transmission roller gap to guide residual defective products to slide into a sorting sliding way. Through the design of real-time detection, sorting linkage and an embedded material guide structure, the sorting response speed is increased, and the modular layout is suitable for workpieces of different sizes. According to the utility model, the problems of low sorting efficiency, large detection blind area and delayed sorting action in the prior art are solved.

Description

Technical Field

[0001] This utility model relates to the field of workpiece inspection and sorting technology, and in particular to a workpiece inspection and sorting mechanism. Background Technology

[0002] With the accelerated intelligent upgrading of the manufacturing industry, automated workpiece inspection and sorting equipment has become a core link in improving production efficiency and product quality, especially in the field of precision machining where there is an urgent need for high-precision and high-stability sorting. Current technologies mostly use fixed pneumatic nozzles and static detection sensors combined with mechanical baffles for sorting. Although this can achieve basic sorting functions, it is limited by problems such as narrow detection coverage, single sorting path, and mechanical interference.

[0003] Chinese patent CN222152956U discloses a detection and automatic sorting device for plastic workpieces. The device includes a supporting frame, a feeding assembly consisting of a vibratory feeder, a turntable, and a motor, a detection assembly including a mounting bracket and an industrial camera, an air blowing assembly with different functions consisting of a universal joint and air nozzles, a discharging assembly consisting of an outlet and a discharge guide rail, and a light shield for shading and easy maintenance and observation. After the device is started, the workpiece is transported by the vibratory feeder and turntable to a location under the industrial camera, where it is detected. The PLC controls the motor and air pump. Defective workpieces are blown by the first air nozzle to a first storage box, while qualified workpieces are blown by the second air nozzle to a second storage box, completing the automatic detection and sorting process. However, this design suffers from limitations in pneumatic sorting due to workpiece weight, shape, and air source stability. Sorting accuracy is easily affected by air pressure fluctuations. Manual adjustment of the industrial camera angle leads to insufficient detection consistency, and there are bottlenecks in sorting efficiency. The turntable's start-stop detection mode limits continuous feeding efficiency, and air path switching delays restrict high-speed sorting response.

[0004] In response to the aforementioned technologies, a workpiece inspection and sorting mechanism is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the defects of the existing technology. This utility model proposes a workpiece detection and sorting mechanism, which solves the problems of low sorting efficiency, large detection blind zone and delayed sorting action in the existing technology.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a workpiece detection and sorting mechanism, including: a conveyor roller frame, sorting slides are fixedly and spaced on the outer walls of both sides of the conveyor roller frame, the conveyor roller frame is composed of a track plate, a transmission roller and a support leg, a plurality of axially parallel transmission rollers are movably connected between two track plates, an air nozzle array unit is fixedly installed at the top of the track plate, a support leg is fixedly installed at the bottom of the track plate, a material guiding unit is fixedly installed on the inner wall of the support leg, the driving end of the material guiding unit extends to the gap between the transmission rollers, a detection component is fixedly installed at the top of the air nozzle array unit, the signal output end of the detection component is electrically connected to the control end of the air nozzle array unit, and the air nozzle array unit is located on the track plate opposite to the location of the sorting slide.

[0007] Preferably, the air nozzle array unit includes a mounting base, air nozzles, and an air supply pipe. The mounting base is fixedly mounted on the track plate at intervals. Multiple air nozzles are equidistantly arranged on the inner side wall of the mounting base along the axial direction of the drive roller. The air nozzles are connected to an external air pump device through the air supply pipe, and the spray direction of the air nozzles is towards the inlet of the sorting chute.

[0008] Preferably, the feeding unit includes a beam plate, which is horizontally fixed on the inner wall of the support leg. Two guide grooves are opened on the beam plate. An electric telescopic rod is fixedly installed in the middle of the beam plate. A wedge-shaped double fork plate is fixedly connected to the output end of the electric telescopic rod. A guide rod is fixedly connected to the bottom end of the wedge-shaped double fork plate. The guide rod is slidably arranged in the guide groove of the beam plate.

[0009] Preferably, the tops of the two inclined panels of the wedge-shaped double fork plate are respectively inserted into the gap between two adjacent drive rollers, and the top height of the inclined panels of the wedge-shaped double fork plate is lower than the top plane of the drive rollers.

[0010] Preferably, a base is fixedly provided at the top of the mounting base, and the base is provided with fixing holes for mounting the detection components.

[0011] Preferably, the detection assembly includes a vertical connecting rod, a horizontal connecting rod, and a laser detector. The vertical connecting rod is vertically fixedly installed on the base. A vertically extending displacement groove is formed on the side wall of the vertical connecting rod. A micro motor is fixedly installed at the top of the vertical connecting rod. A first lead screw is fixedly connected to the output shaft of the micro motor. A lifting platform is screwed onto the first lead screw. The lifting platform is slidably connected to the displacement groove via a slider. An installation hole is formed on the lifting platform. The horizontal connecting rod is horizontally fixedly installed in the installation hole. A stepper motor is fixedly installed at one end of the horizontal connecting rod. A second lead screw is fixedly connected to the output end of the stepper motor. The laser detector is fixedly installed at the end of the second lead screw via a connecting seat.

[0012] Preferably, a connecting ring is sleeved on the outer periphery of the second lead screw. The connecting ring is rotatably connected to the inner wall of the transverse connecting rod through a bearing. The axial position of the connecting ring is located between the stepper motor and the laser detector.

[0013] Preferably, both the vertical connecting rod and the horizontal connecting rod are hollow aluminum alloy profiles.

[0014] Compared with existing technologies, the beneficial effects of this utility model include: achieving precise displacement of the laser detector in the vertical and horizontal directions through a three-dimensional dynamic collaborative adjustment detection component, eliminating blind spots in workpiece surface detection and improving defect identification resolution; combining the real-time linkage control of the air nozzle array unit and the detection signal, utilizing non-contact pneumatic sorting technology to directionally spray defective products, avoiding workpiece damage caused by mechanical contact and significantly enhancing the controllability of the sorting path; adopting a wedge-shaped double-fork embedded guide structure, dynamically lifting residual defective products in the gap between the transmission rollers and guiding them to the sorting slide, effectively avoiding the conveying jamming problem caused by mechanical interference in traditional guide mechanisms; through the composite design of hollow aluminum alloy profiles and rotating support connecting rings, reducing the motion inertia of the detection component while suppressing radial vibration during the lead screw transmission process, ensuring the stability of high-precision detection data; modular mounting base and split functional layout support independent maintenance of the air nozzle array, detection component and transmission rollers, significantly shortening equipment downtime and improving production line compatibility, adapting to the continuous sorting needs of multi-specification workpieces. Attached Figure Description

[0015] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0016] Figure 1 The schematic diagram shows the overall structure of the workpiece detection and material distribution mechanism according to one embodiment of the present invention.

[0017] Figure 2 The schematic diagram shows a structural schematic of an air nozzle array unit according to one embodiment of the present invention.

[0018] Figure 3 The schematic diagram shows a structural schematic of a feeding unit according to one embodiment of the present invention.

[0019] Figure 4 The diagram schematically shows an exploded view of the detection component according to one embodiment of the present invention.

[0020] The diagram is labeled as follows: 1. Conveyor roller frame; 11. Track plate; 12. Drive roller; 13. Support leg; 2. Sorting chute; 3. Air nozzle array unit; 31. Mounting base; 32. Air nozzle; 33. Air supply pipe; 4. Feeding unit; 41. Beam plate; 410. Guide groove; 42. Electric telescopic rod; 43. Wedge-shaped double fork plate; 44. Guide rod; 5. Detection component; 51. Vertical connecting rod; 510. Displacement groove; 52. Micro motor; 53. First lead screw; 54. Lifting platform; 540. Mounting hole; 55. Horizontal connecting rod; 56. Stepper motor; 57. Second lead screw; 570. Connecting ring; 58. Laser detector; 6. Base. Detailed Implementation

[0021] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0022] According to one embodiment of the present invention, in conjunction with Figures 1-4 As shown. A workpiece inspection and sorting mechanism includes: a conveyor roller frame 1, with sorting slides 2 fixedly spaced on both outer walls of the conveyor roller frame 1. The conveyor roller frame 1 consists of track plates 11, drive rollers 12, and support legs 13. Multiple axially parallel drive rollers 12 are movably connected between two track plates 11. The synchronous rotation of the drive rollers 12 forms a stable workpiece conveying plane, reducing the risk of workpiece deviation. An air nozzle array unit 3 is fixedly installed at the top of the track plate 11, and a support leg 13 is fixedly installed at the bottom of the track plate 11. A material guiding unit 4 is fixedly installed on the inner wall of the support leg 13. The driving end of the material guiding unit 4 extends into the gap between the drive rollers 12. Through the embedded cooperation of the wedge-shaped double fork plate 43 with the gap between the drive rollers 12, residual workpieces can be effectively intercepted and guided. A detection component 5 is fixedly installed on the top of the air nozzle array unit 3. The signal output end of the detection component 5 is electrically connected to the control end of the air nozzle array unit 3 to realize real-time linkage between detection and sorting actions. The air nozzle array unit 3 is located on the opposite side track plate 11 of the sorting slide 2, and ensures the accuracy of the sorting path through directional spraying.

[0023] The air nozzle array unit 3 includes a mounting base 31, air nozzles 32, and an air supply pipe 33. The mounting base 31 is fixedly mounted on the track plate 11 at intervals. Multiple air nozzles 32 are equidistantly arranged on the inner side wall of the mounting base 31 along the axial direction of the drive roller 12. The equidistantly distributed air nozzles 32 form a uniform airflow coverage area, improving the sorting efficiency of defective products. The air nozzles 32 are connected to an external air pump device through the air supply pipe 33. The spray direction of the air nozzles 32 is towards the entrance of the sorting chute 2, using high-pressure airflow to perform non-contact sorting of defective products, avoiding damage to the workpiece surface. A base 6 is fixedly mounted on the top of the mounting base 31. The base 6 has fixing holes for mounting the detection component 5. The modular design of the base 6 facilitates the quick assembly, disassembly, and maintenance of the detection component 5.

[0024] The feeding unit 4 includes a beam plate 41, which is horizontally fixed to the inner wall of the support leg 13. Two guide grooves 410 are formed on the beam plate 41. An electric telescopic rod 42 is fixedly installed in the middle of the beam plate 41. A wedge-shaped double fork plate 43 is fixedly connected to the output end of the electric telescopic rod 42. A guide rod 44 is fixedly connected to the bottom end of the wedge-shaped double fork plate 43. The guide rod 44 is slidably disposed within the guide grooves 410 of the beam plate 41. Through the sliding cooperation between the guide rod 44 and the guide grooves 410, the lifting and lowering process of the wedge-shaped double fork plate 43 is ensured, preventing jamming. The tops of the two inclined panels of the wedge-shaped double fork plate 43 are respectively inserted into the gaps between two adjacent transmission rollers 12. The top height of the inclined panels of the wedge-shaped double fork plate 43 is lower than the top plane of the transmission rollers 12. Through the gap cooperation between the inclined panels and the transmission rollers 12, residual defective products can be lifted from the gaps between the transmission rollers 12 and guided to the sorting chute 2 without interfering with normal workpiece conveying, reducing the missed inspection rate.

[0025] The detection component 5 includes a vertical connecting rod 51, a horizontal connecting rod 55, and a laser detector 58. The vertical connecting rod 51 is vertically fixedly installed on the base 6. A vertically extending displacement groove 510 is provided on the side wall of the vertical connecting rod 51. A micro motor 52 is fixedly installed at the top of the vertical connecting rod 51. A first lead screw 53 is fixedly connected to the output shaft of the micro motor 52. A lifting platform 54 is screwed onto the first lead screw 53. The lifting platform 54 is slidably connected in the displacement groove 510 by a slider. The micro motor 52 drives the first lead screw 53 to move the lifting platform 54 vertically along the displacement groove 510, thereby realizing the adaptive height adjustment of the laser detector 58. The lifting platform 54 has mounting holes 540. A horizontal connecting rod 55 is horizontally fixed in the mounting holes 540. A stepper motor 56 is fixedly mounted at one end of the horizontal connecting rod 55. A second lead screw 57 is fixedly connected to the output end of the stepper motor 56. A laser detector 58 is fixedly mounted at the end of the second lead screw 57 via a connecting seat. The stepper motor 56 drives the second lead screw 57 to move the laser detector 58 horizontally along the horizontal connecting rod 55. Combined with vertical and horizontal bidirectional adjustment, a three-dimensional detection coverage is formed, significantly improving detection accuracy. A connecting ring 570 is sleeved on the outer circumference of the second lead screw 57. The connecting ring 570 is rotatably connected to the inner wall of the horizontal connecting rod 55 through a bearing. The axial position of the connecting ring 570 is located between the stepper motor 56 and the laser detector 58. The connecting ring 570 provides rotational support for the second lead screw 57, reducing radial vibration during lead screw transmission and ensuring the positioning stability of the laser detector 58. Both the vertical connecting rod 51 and the horizontal connecting rod 55 are hollow aluminum alloy profiles. Through the lightweight material and hollow structure design, the motion inertia is reduced while ensuring the overall rigidity of the detection component 5, thereby improving the response speed of the micro motor 52 and the stepper motor 56 and further optimizing the detection efficiency.

[0026] In this embodiment, when the workpiece detection and sorting mechanism is working, the transmission roller 12 of the conveyor roller frame 1 continuously rotates to transport the workpiece. When the workpiece passes under the detection component 5, the detection component 5 uses a laser detector 58 to perform real-time scanning detection of the workpiece surface or size. The three-dimensional adjustable structure of the detection component 5 drives the first lead screw 53 through a micro motor 52, which drives the lifting platform 54 to move vertically along the displacement groove 510 of the vertical connecting rod 51. At the same time, the stepper motor 56 adjusts the horizontal position of the laser detector 58 through the second lead screw 57 to achieve precise adjustment of the detection angle and adapt to the detection requirements of workpieces of different specifications. The detection signal is transmitted to the air nozzle array unit 3 in real time. If it is identified as a defective product, the air nozzle 32 on the mounting base 31 immediately receives high-pressure gas through the air supply pipe 33 and accurately sprays it into the inlet of the sorting chute 2, blowing the defective product into the sorting chute 2. Simultaneously, the feeding unit 4 inside the support leg 13 is activated, and the electric telescopic rod 42 pushes the wedge-shaped double fork plate 43 upward. The top of its inclined panel extends from the gap of the transmission roller 12, guiding the residual defective products to the sorting slide 2. The guide rod 44 slides along the guide groove 410 of the beam plate 41 to ensure stable movement. The detection component 5 achieves three-dimensional precise positioning through the linkage of the double lead screw, the air nozzle array unit 3 sprays in real time in linkage with the detection signal, and the embedded cooperation structure between the wedge-shaped double fork plate 43 and the gap of the transmission roller 12, together to achieve efficient sorting.

[0027] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A workpiece inspection and separating mechanism comprising: include: A conveyor roller frame has sorting tracks fixedly spaced on its two outer walls. The conveyor roller frame consists of track plates, drive rollers, and support legs. Multiple axially parallel drive rollers are movably connected between two track plates. An air nozzle array unit is fixedly installed at the top of the track plate, and a support leg is fixedly installed at the bottom of the track plate. A material feeding unit is fixedly installed on the inner wall of the support leg. The driving end of the material feeding unit extends into the gap between the drive rollers. A detection component is fixedly installed at the top of the air nozzle array unit. The signal output end of the detection component is electrically connected to the control end of the air nozzle array unit. The air nozzle array unit is located on the track plate opposite to the location of the sorting track.

2. The workpiece inspection and distribution mechanism of claim 1, wherein, The air nozzle array unit includes a mounting base, air nozzles, and an air supply pipe. The mounting base is fixedly installed on the track plate at intervals. Multiple air nozzles are arranged at equal intervals along the axial direction of the drive roller on the inner side wall of the mounting base. The air nozzles are connected to an external air pump device through the air supply pipe, and the spray direction of the air nozzles is towards the entrance of the sorting chute.

3. The workpiece detection and distribution mechanism of claim 1, wherein, The feeding unit includes a beam plate, which is horizontally fixed on the inner wall of the support leg. Two guide grooves are opened on the beam plate. An electric telescopic rod is fixedly installed in the middle of the beam plate. A wedge-shaped double fork plate is fixedly connected to the output end of the electric telescopic rod. A guide rod is fixedly connected to the bottom end of the wedge-shaped double fork plate. The guide rod is slidably arranged in the guide groove of the beam plate.

4. The workpiece inspection and distribution mechanism of claim 3, wherein, The tops of the two inclined panels of the wedge-shaped double fork plate are respectively inserted into the gap between two adjacent drive rollers, and the top height of the inclined panels of the wedge-shaped double fork plate is lower than the top plane of the drive rollers.

5. The workpiece inspection and distribution mechanism of claim 2, wherein, The mounting base is fixedly provided at the top, and the base is provided with fixing holes for installing the detection components.

6. The workpiece inspection and distribution mechanism of claim 1, wherein, The detection assembly includes a vertical connecting rod, a horizontal connecting rod, and a laser detector. The vertical connecting rod is vertically fixedly installed on the base, and a vertically extending displacement groove is formed on the side wall of the vertical connecting rod. A micro motor is fixedly installed at the top of the vertical connecting rod, and a first lead screw is fixedly connected to the output shaft of the micro motor. A lifting platform is screwed onto the first lead screw, and the lifting platform is slidably connected in the displacement groove via a slider. A mounting hole is formed on the lifting platform, and the horizontal connecting rod is horizontally fixedly installed in the mounting hole. A stepper motor is fixedly installed at one end of the horizontal connecting rod, and a second lead screw is fixedly connected to the output end of the stepper motor. The laser detector is fixedly installed at the end of the second lead screw via a connecting seat.

7. The workpiece detection and distribution mechanism of claim 6, wherein, The second lead screw is fitted with a connecting ring on its outer circumference. The connecting ring is rotatably connected to the inner wall of the transverse connecting rod through a bearing. The axial position of the connecting ring is located between the stepper motor and the laser detector.

8. The workpiece detection and distribution mechanism of claim 6, wherein, Both the vertical and horizontal connecting rods are hollow aluminum alloy profiles.

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