A full-automatic detection device for nozzle ring installation disc based on machine vision

Abstract

The utility model relates to mechanical part detection technical field especially a kind of full-automatic detection device of nozzle ring mounting disc based on machine vision, including base and the rack installed on it;Conveying mechanism, contain motor-driven horizontal conveyor, through rack is fixed on the top of base;Feeding mechanism, be located in the feed end of conveyor, for the interval conveying of mounting disc is sent to conveyor;Detection mechanism, be located in the top of conveyor, contain camera and light source, for obtaining mounting disc size and appearance data;Elimination mechanism, be located in the downstream of detection mechanism, contain the exhaust cylinder and guide pipe of opposite arrangement;Position sensor, be located in the top of conveyor, the upstream of detection mechanism, for triggering detection action, through the utility model can realize the efficient, accurate full-automatic detection of nozzle ring mounting disc, improve product consistency and production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mechanical parts inspection technology, specifically to a fully automatic inspection device for nozzle ring mounting discs based on machine vision. Background Technology

[0002] In the assembly and production of nozzle rings, the dimensional accuracy and appearance quality of parts such as mounting plates and back covers directly affect the performance of the final product. Traditional inspection relies on manual measurement of dimensions using vernier calipers and visual inspection of appearance, which has the following drawbacks: manual operation is time-consuming and difficult to meet the needs of mass production, resulting in low inspection efficiency; subjective judgment is prone to introducing errors, leading to fluctuations in the pass rate of parts, and the consistency of nozzle rings needs to be improved; and the lack of digital records makes it difficult to trace quality. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an automated nozzle ring mounting disc inspection device, aiming to achieve efficient, accurate, and fully automated inspection of the mounting disc, thereby improving product consistency and production efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a fully automatic inspection device for nozzle ring mounting disc based on machine vision, comprising a base and a frame mounted thereon;

[0005] The conveying mechanism includes a motor-driven horizontal conveyor belt, which is fixed above the base by a frame;

[0006] The feeding mechanism, located at the feed end of the conveyor belt, is used to transport the installation trays onto the conveyor belt at intervals.

[0007] The inspection unit, located above the conveyor belt, includes cameras and light sources to acquire data on the dimensions and appearance of the installation trays.

[0008] The rejection mechanism, located downstream of the detection mechanism, includes an exhaust cylinder and a guide tube arranged in opposite directions.

[0009] The position sensor is located above the conveyor belt and upstream of the detection mechanism to trigger the detection action.

[0010] Preferably, the feeding mechanism includes a bracket, a slide table, a pusher cylinder, a hopper, a pusher plate, and a hopper frame; the bracket is fixedly installed on the frame and located on the left side of the conveyor belt; the slide table and the pusher cylinder are both installed on the bracket; the upper end face of the slide table is flush with the conveyor belt; the pusher plate is driven by the pusher cylinder and slidably disposed on the slide table; the hopper is mounted above the pusher plate and located within the sliding stroke of the pusher plate.

[0011] Preferably, the distance between the lower end of the hopper and the upper end of the slide is adapted to the thickness of the mounting plate; the thickness of the pusher plate is not greater than the thickness of the mounting plate.

[0012] Preferably, the end of the pusher plate away from the pusher cylinder has an arc-shaped groove.

[0013] Preferably, the hopper has a hollowed-out tubular structure.

[0014] Preferably, the hopper includes a plurality of vertically arranged support rods; the plurality of support rods are distributed around the axis of the hopper and fixedly connected by a hopper frame.

[0015] Preferably, the slide table has a cover-like structure with open left and right ends; a through guide groove is provided on the top plate of the slide table; the output pipe of the pusher cylinder passes through the guide groove and is fixedly connected to the lower end of the pusher plate.

[0016] Preferably, the rejection mechanism includes a discharge cylinder and a guide tube; the discharge cylinder and the guide tube are respectively placed on the front and rear sides of the conveyor belt, and the discharge cylinder and the guide tube are arranged facing each other.

[0017] Preferably, it also includes a first recycling bin and a second recycling bin installed on the base; the first recycling bin is located at the discharge end of the conveyor belt; and the second recycling bin corresponds to the position of the guide tube.

[0018] Preferably, it also includes a controller; the controller is connected to the position sensor, the feeding mechanism, the detection mechanism, and the rejection mechanism via circuitry.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model realizes the single-piece interval conveying of the installation tray through an automated feeding mechanism, combines a machine vision system to perform high-precision dimensional measurement and appearance defect identification of the parts on the conveyor belt, and completes the sorting of unqualified parts by the rejection mechanism based on the controller's decision instructions, and finally realizes the separate recycling of qualified and unqualified parts; this device completely eliminates the measurement error and subjective omission of manual inspection, which not only improves the inspection efficiency, but also ensures the consistency of the installation tray. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the front structure of the detection device of this utility model;

[0021] Figure 2 This is a schematic diagram of the rear structure of the detection device of this utility model;

[0022] Figure 3 This is a schematic diagram of the feeding mechanism of this utility model;

[0023] Figure 4 This is a schematic diagram of the pusher cylinder and pusher plate of this utility model.

[0024] Figure 5 This is a schematic diagram of the slide structure of this utility model.

[0025] In the diagram: 1. Base, 2. Frame, 3. Conveying mechanism, 4. Feeding mechanism, 5. Detection mechanism, 6. Rejection mechanism, 7. First recycling bin, 8. Position sensor, 31. Conveyor belt, 41. Bracket, 42. Slide table, 43. Pushing cylinder, 44. Hopper, 45. Pushing plate, 46. Hopper frame, 421. Guide groove, 61. Discharge cylinder, 62. Guide tube, 63. Second recycling bin. Detailed Implementation

[0026] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings, so that those skilled in the art can more clearly understand how to practice this utility model. Although this utility model has been described in conjunction with its preferred embodiments, these embodiments are merely illustrative and not intended to limit the scope of this utility model.

[0027] Before the nozzle ring assembly production, the dimensions and appearance of its various parts (such as the mounting plate and back cover) need to be inspected to ensure the performance after assembly. Traditionally, production personnel manually measure the dimensions of the mounting plate using tools such as calipers and visually inspect the appearance. This method is not only inefficient but also prone to errors, resulting in inconsistent nozzle ring products. To address this issue, this application designs a highly automated mounting plate inspection device, aiming to improve inspection efficiency and nozzle ring consistency.

[0028] See Figure 1-5 In one embodiment of this utility model, a fully automatic detection device for nozzle ring mounting disc based on machine vision includes: a base 1, a frame 2, a conveying mechanism 3, a feeding mechanism 4, a detection mechanism 5, a rejection mechanism 6, a first recycling bin 7, a position sensor 8, and a controller (not shown in the figure).

[0029] The conveying mechanism 3 is mounted above the base 1 via the frame 2. The conveying mechanism 3 includes a motor and a conveyor belt 31 driven by the motor. The conveyor belt 31 is horizontally arranged in the left-right direction.

[0030] The feeding mechanism 4, detection mechanism 5, rejection mechanism 6, and position sensor 8 are all mounted on the frame 2 and connected to the controller via circuitry. The feeding mechanism 4 is located at the left feed end of the conveyor belt 31 and is used to transport the installation trays to be tested to the conveyor belt 31 in an orderly and spaced manner. The position sensor 8 is located between the feeding mechanism 4 and the detection mechanism 5 and is used to detect the installation trays on the conveyor belt and send a signal to the controller to trigger the detection mechanism to work. The detection mechanism 5 is located above the conveyor belt 31 and is used to perform size and appearance inspection on the installation trays on the conveyor belt 31. The rejection mechanism 6 is located downstream of the detection mechanism 5 (along the conveyor belt conveying direction) and is used to collect installation trays that fail the inspection.

[0031] The first recycling bin 7 is installed on the base 1 and located at the right discharge end of the conveyor belt 31, and is used to receive qualified installation discs.

[0032] The feeding mechanism 4 includes a bracket 41, a slide table 42, a pushing cylinder 43, a hopper 44, a pushing plate 45, and a hopper frame 46. The bracket 41 is fixedly installed on the frame 2 and located on the left side of the conveyor belt 31. The slide table 42 and the pushing cylinder 43 are installed on the bracket 41. The slide table 42 has a cover-like structure with open left and right ends. The upper end surface of the slide table 42 is higher than the pushing cylinder 43, and the upper end surface of the slide table 42 is at the same horizontal height as the conveyor belt 31. A through guide groove 421 is provided on the top plate of the slide table 42.

[0033] The pusher plate 45 is slidably disposed on the slide table 42 and is fixedly connected to the output end of the pusher cylinder 43 through the guide groove 421. The output end of the pusher cylinder 43 passes through the guide groove 421. The pusher cylinder 43 drives the pusher plate 45 to reciprocate left and right within the stroke limited by the guide groove 421.

[0034] The hopper 44 is a tubular structure running vertically through the floor. It is suspended above the slide table 42 and the pusher plate 45 via a hopper frame 46, and is located within the stroke range of the pusher plate 45. The distance between the bottom surface of the hopper 44 and the top surface of the slide table 42 is designed to be slightly greater than the thickness of the mounting plate. The thickness of the pusher plate 45 is less than the thickness of the mounting plate. This design ensures that the pusher plate 45 can only push one mounting plate to the conveyor belt 31 in one round trip, achieving orderly and spaced feeding. An arc-shaped groove is provided at the end of the pusher plate 45 away from the pusher cylinder 43, allowing for better contact with the outer edge of the mounting plate and making the pushing process more stable.

[0035] Furthermore, the hopper 44 is composed of four vertical support rods, which are distributed around the axis of the hopper 44 body and fixedly connected by the hopper frame 46. Its advantage is that it is easy to adjust the horizontal posture of the mounting plate and can adapt to the irregular outer edge of the mounting plate.

[0036] The detection mechanism 5 includes a vertically focused camera and an auxiliary light source, as well as a bracket necessary for mounting the camera and the light source; the camera is oriented towards the conveyor belt 31 to acquire image information of the mounting plate.

[0037] The rejection mechanism 6 includes a discharge cylinder 61, a guide tube 62, and a second recycling box 63. The discharge cylinder 61 and the guide tube 62 are distributed on both sides of the conveyor belt 31, with the discharge cylinder 61 and the guide tube 62 facing each other. The second recycling box 63 is located on the base 1 and below the guide tube 62. Under the command of the controller, the discharge cylinder 61 can push the unqualified installation plate towards the guide tube 62. After the part slides down the guide tube 62, it falls into the second recycling box 63 for recycling.

[0038] This technical solution, by sequentially setting a feeding mechanism, a position sensor, a detection mechanism, a rejection mechanism, and a first recycling bin along the conveyor belt flow direction, realizes an automatic interval feeding → continuous conveying → synchronous detection → intelligent sorting closed-loop production line, solving the inherent defects of manual operation and significantly improving production efficiency and product quality.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A fully automatic inspection device for nozzle ring mounting discs based on machine vision, characterized in that, include: Base (1) and rack (2) mounted thereon; The conveying mechanism (3) includes a motor-driven horizontal conveyor belt (31) which is fixed above the base (1) via a frame (2); The feeding mechanism (4) is located at the feed end of the conveyor belt (31) and is used to transport the installation trays to the conveyor belt (31) at intervals. The inspection unit (5) is located above the conveyor belt (31) and includes a camera and a light source for acquiring data on the size and appearance of the installation plate; The rejection mechanism (6) is located downstream of the detection mechanism (5) and includes an exhaust cylinder (61) and a guide tube (62) arranged in opposite directions. A position sensor (8) is located above the conveyor belt (31) and upstream of the detection mechanism (5) to trigger the detection action.

2. The fully automatic nozzle ring mounting plate detection device based on machine vision according to claim 1, characterized in that: The feeding mechanism (4) includes a bracket (41), a slide table (42), a pusher cylinder (43), a hopper (44), a pusher plate (45), and a hopper frame (46); the bracket (41) is fixedly installed on the frame (2) and located on the left side of the conveyor belt (31); the slide table (42) and the pusher cylinder (43) are both installed on the bracket (41); the upper end face of the slide table (42) is flush with the conveyor belt (31); the pusher plate (45) is driven by the pusher cylinder (43) and is slidably located on the slide table (42); the hopper (44) is located above the pusher plate (45) and within the sliding stroke of the pusher plate (45) via the hopper frame (46).

3. The fully automatic nozzle ring mounting plate detection device based on machine vision according to claim 2, characterized in that: The distance between the lower end of the hopper (44) and the upper end of the slide (42) is adapted to the thickness of the mounting plate; the thickness of the pusher plate (45) is not greater than the thickness of the mounting plate.

4. The fully automatic nozzle ring mounting plate detection device based on machine vision according to claim 2, characterized in that: The pusher plate (45) has an arc-shaped groove at the end away from the pusher cylinder (43).

5. The fully automatic nozzle ring mounting plate detection device based on machine vision according to claim 2, characterized in that: The hopper (44) has a hollowed-out tubular structure.

6. The fully automatic nozzle ring mounting plate detection device based on machine vision according to claim 5, characterized in that: The hopper (44) includes a plurality of vertically arranged support rods; the plurality of support rods are distributed around the axis of the hopper (44) and fixedly connected by the hopper frame (46).

7. The fully automatic nozzle ring mounting plate detection device based on machine vision according to claim 2, characterized in that: The slide (42) has a cover-like structure with open left and right ends; a through guide groove (421) is provided on the top plate of the slide (42); the output pipe of the pusher cylinder (43) passes through the guide groove (421) and is fixedly connected to the lower end of the pusher plate (45).

8. The fully automatic nozzle ring mounting plate detection device based on machine vision according to claim 1, characterized in that: The rejection mechanism (6) includes a discharge cylinder (61) and a guide tube (62); the discharge cylinder (61) and the guide tube (62) are respectively placed on the front and rear sides of the conveyor belt (31), and the discharge cylinder (61) and the guide tube (62) are arranged facing each other.

9. The fully automatic nozzle ring mounting plate detection device based on machine vision according to claim 8, characterized in that: It also includes a first recycling bin (7) and a second recycling bin (63) installed on the base (1); the first recycling bin (7) is located at the discharge end of the conveyor belt (31); the second recycling bin (63) corresponds to the position of the guide tube (62).

10. The fully automatic nozzle ring mounting plate detection device based on machine vision according to claim 1, characterized in that: It also includes a controller; the controller is connected to the position sensor (8), the feeding mechanism (4), the detection mechanism (5), and the rejection mechanism (6) via circuits.

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