Product size on-line detection production line

Abstract

The utility model discloses a product size on -line detection production line, including detection platform, and install detection support, loading conveying mechanism, translation feeding mechanism, size detection module and blanking module on the detection platform. Translation feeding mechanism and detection module arrange respectively in the both sides of detection loading mechanism. Detection module includes the outer diameter detection subassembly, center hole detection subassembly and height detection subassembly who arranges in proper order, is used for detecting the outer diameter size, inner diameter size and height size of measured part respectively. Translation feeding mechanism in the utility model through setting up multiple station switching pawl, cooperation biaxial drive component realizes and can switch detection between outer diameter detection subassembly, center hole detection subassembly and height detection subassembly to measured part in proper order, and in the whole switching process, each station switching pawl forms the holding of moving direction to measured part, thereby avoids the positional deviation of measured part after moving to the specified detection station.

Description

Technical Field

[0001] This utility model belongs to the field of dimensional inspection technology, specifically relating to an online production line for product dimensional inspection. Background Technology

[0002] Due to the influence of the materials used and the environment in which they are used, each product requires dimensional inspection to eliminate defective products and ensure accuracy. Currently, the inspection of the outer diameter, the go / no-go gauge of the center hole, and the height of the product is usually done manually. These inspections require 2-3 people to complete, with a capacity of about 600 pieces per person. This is labor-intensive, and manual operation carries the risk of missed or incorrect inspections.

[0003] In existing technologies, some products are inspected using corresponding dimensional inspection equipment. This inspection method requires manual placement of the product on the inspection platform, which is time-consuming, inefficient, and prone to significant human error. Furthermore, when sequentially inspecting the outer diameter, center hole, and height of the product, the above operations must be repeated, further extending the inspection time and increasing the error rate. In addition, some equipment integrates various dimensional inspection devices and uses conveyor belts for transport. However, after reaching the designated station, some parts may slightly shift due to inertia, making it difficult to ensure the accuracy of the transport station. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model provides an online product size inspection production line to solve the technical problems of high labor intensity for workers and the existence of false detections in product size inspection.

[0005] To achieve the above objectives, the specific technical solution of this utility model is as follows:

[0006] An online product size inspection production line includes an inspection platform, and an inspection bracket, a feeding and conveying mechanism, a translational feeding mechanism, a size inspection module, and a dropping module mounted on the inspection platform. The translational feeding mechanism and the inspection module are respectively arranged on both sides of the inspection and feeding mechanism.

[0007] The detection module includes an outer diameter detection component, a center hole detection component, and a height detection component arranged in sequence, which are used to detect the outer diameter, inner diameter, and height of the part being measured, respectively.

[0008] The translational feeding mechanism includes multiple station switching claws, mounting brackets, and a dual-axis drive assembly. Each station switching claw is mounted on the moving end of the dual-axis drive assembly via the mounting bracket, and can move horizontally along the arrangement direction of the outer diameter detection assembly, the center hole detection assembly, and the height detection assembly under the drive of the dual-axis drive assembly, as well as switch between moving closer to the detection platform and moving further away from the detection platform.

[0009] The unloading module includes a qualified product output component and a defective product recycling component, which are used to separate qualified and unqualified parts.

[0010] Furthermore, each of the aforementioned workstation switching claws is equipped with a return material pushing cylinder, which is used to push the defective parts toward the defective product recycling component.

[0011] Furthermore, the outer diameter detection assembly includes a measuring lifting cylinder, a central positioning rod, an auxiliary block, an outer diameter laser rangefinder, and an outer diameter go / no-go gauge mounted on the detection bracket. The central positioning rod is mounted on the telescopic end of the measuring lifting cylinder and can be lifted upwards under the drive of the cylinder. A corresponding outer diameter detection through-hole is provided on the detection platform. The auxiliary block is mounted on the outer ring of the central positioning rod, with its top surface lower than the top surface of the central positioning rod. The outer diameter laser rangefinder is mounted below the detection platform via a fixed bracket and is used to detect the upward distance of the auxiliary block in real time.

[0012] Furthermore, a discharge cylinder is installed on the testing bracket. The discharge cylinder is located directly above the outer diameter go / no-go gauge.

[0013] Furthermore, the center hole detection assembly includes a positioning and measuring cylinder, an inner diameter go / no-go gauge, and a center hole laser rangefinder. The positioning and measuring cylinder is mounted on the detection bracket. The inner diameter go / no-go gauge is mounted on the telescopic end of the positioning and measuring cylinder, and can descend or ascend under the drive of the positioning and measuring cylinder. The detection platform has a detection hole that mates with the inner diameter go / no-go gauge. The center hole laser rangefinder is mounted directly below the detection hole.

[0014] Furthermore, the inner diameter go / no-go gauge is divided into a positioning part, an inner diameter go gauge part, and an inner diameter no-go gauge part from bottom to top. The bottom outer ring of the positioning part is provided with a chamfer.

[0015] Furthermore, the height detection assembly includes a pressing cylinder, a detection fixture, and a telescopic displacement sensor. The detection fixture is mounted on the telescopic end of the pressing cylinder and can descend or rise under the action of the cylinder. The telescopic displacement sensor is fixed to the detection platform. A contact plate that mates with the telescopic displacement sensor is provided on one side of the detection fixture. In the initial state, the contact plate abuts against the top of the telescopic displacement sensor.

[0016] Furthermore, an elastic buffer column is provided between the detection platform and the telescopic end of the pressing cylinder.

[0017] Furthermore, the qualified product output component includes a finished product output belt and a finished product unloading rack. The input end of the finished product output belt is connected to the output end of the testing platform, and is used to convey and output qualified tested parts. The finished product unloading rack is located at the output end of the finished product output belt.

[0018] Furthermore, the defective product recycling component includes a defective product output belt and two recycling channels, corresponding to the outer diameter detection component, the center hole detection component, and the height detection component, respectively.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] The translational feeding mechanism of this invention, by setting up multiple station switching claws and cooperating with a dual-axis drive assembly, enables the tested part to be sequentially switched between the outer diameter detection assembly, the center hole detection assembly, and the height detection assembly for detection. During the entire switching process, each station switching claw holds the tested part in the direction of movement, thereby preventing positional displacement of the tested part after it moves to the designated detection station. Simultaneously, the outer diameter detection assembly, the center hole detection assembly, and the height detection assembly sequentially detect the outer diameter, inner diameter, and height dimensions of the tested part. This, combined with the translational feeding mechanism, achieves automated detection of the tested part, thereby reducing the labor intensity of workers. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram showing the relative positions of the feeding output mechanism and the size detection module in this utility model;

[0023] Figure 3 This is a schematic diagram of the translational feeding mechanism in this utility model. Figure 2 (Enlarged view of part B in the middle section)

[0024] Figure 4 This is a schematic diagram of the structure of the outer diameter detection component, the center hole detection component, and the height detection component in this utility model. Figure 1 (Enlarged view of part A in the middle)

[0025] Figure 5 This is a schematic diagram of the outer diameter detection component in this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the center hole detection component in this utility model;

[0027] Figure 7 This is a schematic diagram of the height detection component in this utility model.

[0028] Reference numerals: 1. Frame; 2. Inspection platform; 3. Feeding and conveying mechanism; 3-1. Feeding conveyor belt; 3-2. Feeding and pushing cylinder; 4. Translational feeding mechanism; 4-1. Station switching claw; 4-2. Mounting bracket; 4-3. Dual-axis drive assembly; 4-4. Return and pushing cylinder; 5. Dimension detection module; 6. Unloading module; 6-1. Qualified product output assembly; 6-2. Defective product recycling assembly; 7. Outer diameter detection assembly; 7-1. Measuring and lifting cylinder; 7-2. Center positioning. 7-3. Auxiliary block; 7-4. Outer diameter laser rangefinder; 7-5. Outer diameter go / no-go gauge; 7-5-1. Outer diameter go gauge; 7-5-2. Outer diameter no-go gauge; 7-6. Material ejector cylinder; 8. Center hole detection assembly; 8-1. Positioning and measuring cylinder; 8-2. Inner diameter go / no-go gauge; 8-3. Center hole laser rangefinder; 9. Height detection assembly; 9-1. Pressing cylinder; 9-2. Detection fixture; 9-3. Telescopic displacement sensor; 9-4. Contact plate; 9-5. Elastic buffer column. Detailed Implementation

[0029] In the description of this utility model, it should be understood that the terms "one end", "the other end", "outer side", "upper side", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] The present invention will be further described below with reference to the accompanying drawings.

[0031] like Figure 1 and 2 As shown, an online product dimension inspection production line includes a frame 1, an inspection platform 2, and inspection brackets, a feeding and conveying mechanism 3, a translational feeding mechanism 4, a dimension inspection module 5, and a dropping module 6 mounted on the inspection platform 2. The inspection and feeding mechanism is used to input the parts to be inspected one by one into the inspection platform 2. The translational feeding mechanism 4 and the inspection module are respectively arranged on both sides of the inspection and feeding mechanism.

[0032] The detection module includes an outer diameter detection component 7, a center hole detection component 8, and a height detection component 9 arranged sequentially. Parts to be tested, fed by the detection and loading mechanism, are sequentially fed into the detection stations of the outer diameter detection component 7, center hole detection component 8, and height detection component 9 by the translational feeding mechanism 4 for corresponding detection. Based on the detection results, the unloading module 6 separates and collects qualified and unqualified products.

[0033] like Figure 2As shown, the inspection and loading mechanism includes a loading conveyor belt 3-1 and a loading push cylinder 3-2. The inspection platform 2 is divided into a loading section, a transition section, and an inspection conveying section. Two corner structures are formed between the loading section, the transition section, and the inspection conveying section. The loading conveyor belt 3-1 is located on the loading section of the inspection platform 2 and is used to transport the parts to be tested onto the inspection platform 2. The loading push cylinder 3-2 is located on one side of the transition section and can push the parts to be tested fed by the loading conveyor belt 3-1 one by one onto the inspection section of the inspection platform 2. The translational feeding mechanism 4 then drives the parts to be tested one by one through the inspection stations where the outer diameter inspection component 7, the center hole inspection component 8, and the height inspection component 9 are located.

[0034] like Figure 3 and 4 As shown, the translational feeding mechanism 4 includes multiple station switching claws 4-1, mounting brackets 4-2, and a dual-axis drive assembly 4-3. Each station switching claw 4-1 is mounted on the moving end of the dual-axis drive assembly 4-3 via the mounting brackets 4-2, enabling it to move horizontally along the arrangement direction of each station under the drive of the dual-axis drive assembly 4-3, and to switch between moving closer to and further away from the detection platform 2.

[0035] During inspection, the part to be tested is pushed from the loading section of the inspection platform 2 into the inspection conveying section by the loading cylinder 3-2. The station switching claw 4-1, driven by the dual-axis drive assembly 4-3, moves towards one side of the inspection platform 2 and clamps the part to be tested on the inspection platform 2. Driven by the dual-axis drive assembly 4-3, the station switching claw 4-1 moves laterally, carrying the part to be tested into the corresponding inspection station. After completing the station switching of the part to be tested, the station switching claw 4-1, driven by the dual-axis drive assembly 4-3, moves away from the part to be tested and returns to its original position, preparing for the station switching of subsequent input parts to be tested.

[0036] like Figure 3 As shown, the station switching claw 4-1 includes two symmetrically arranged clamping claws. The two clamping claws are spaced apart, and their outer ends have clamping grooves that match the shape of the part being tested, used to clamp the part. Furthermore, each station switching claw 4-1 has a return material pushing cylinder 4-4 between the two clamping claws. When the part being tested is found to be defective after being inspected by the detection module, each return material pushing cylinder 4-4 pushes the corresponding part into the unloading module 6, which collects the defective parts from the output port.

[0037] In this embodiment, the dual-axis drive assembly 4-3 includes a transverse slide, a movable table, and a longitudinal drive cylinder. The movable table is slidably connected to the frame 1 and can move laterally along the arrangement direction of each detection station on the detection platform 2 under the drive of the transverse slide. When each station switching claw 4-1 moves to the extreme end position of the transverse slide, it corresponds to the station where each detection component is located. The mounting bracket 4-2 is slidably connected to the movable table and can move closer to or further away from the detection platform 2 under the drive of the longitudinal drive cylinder, thereby enabling the station switching claws 4-1 to move closer to or further away from the detection platform 2.

[0038] like Figure 5 As shown, the outer diameter detection assembly 7 includes a measuring lifting cylinder 7-1, a central positioning rod 7-2, an auxiliary block 7-3, an outer diameter laser rangefinder 7-4, and an outer diameter go / no-go gauge 7-5 mounted on the detection bracket. The central positioning rod 7-2 is mounted on the telescopic end of the measuring lifting cylinder 7-1 and can be lifted upwards under the drive of the cylinder 7-1. The detection platform 2 has a corresponding outer diameter detection through-hole. During detection, the central positioning rod 7-2 passes through the outer diameter detection through-hole and extends into the center hole of the part being measured, achieving center positioning of the part. The auxiliary block 7-3 is mounted on the outer ring of the central positioning rod 7-2, with its top surface lower than the top surface of the central positioning rod 7-2. This ensures that when the measuring lifting cylinder 7-1 drives the central positioning rod 7-2 and the auxiliary block 7-3 to move upwards, the part being measured will be initially positioned in the middle by the central positioning rod 7-2, and then lifted towards the outer diameter go / no-go gauge 7-5 by the auxiliary block 7-3.

[0039] The outer diameter go / no-go gauge 7-5 consists of a lower outer diameter go gauge 7-5-1 and an upper outer diameter no-go gauge 7-5-2. It works in conjunction with the outer diameter laser rangefinder 7-4 to determine whether the outer diameter of the measured part meets the requirements. The outer diameter go gauge 7-5-1 limits the maximum outer diameter of the measured part, while the outer diameter no-go gauge 7-5-2 limits the minimum outer diameter. The outer diameter laser rangefinder 7-4 is mounted below the testing platform 2 via a fixed bracket. It is used to detect the upward movement of the auxiliary block 7-3 in real time, thereby inferring the upward displacement distance of the measured part, and determining whether the outer diameter of the measured part is qualified based on the displacement value.

[0040] The specific testing process is as follows: when the outer diameter of the part being tested is smaller than the maximum outer diameter specified by the outer diameter go gauge 7-5-1, the part can be smoothly lifted upwards by the auxiliary block 7-3; otherwise, it will be stuck at the bottom of the outer diameter go gauge 7-5-1. When the outer diameter of the part being tested is larger than the minimum outer diameter specified by the outer diameter no-go gauge 7-5-2, the part is confined to the bottom of the outer diameter no-go gauge 7-5-2; otherwise, it will continue to be lifted upwards. The outer diameter laser rangefinder 7-4 can determine whether the outer diameter of the part being tested meets the requirements based on the distance the auxiliary block 7-3 moves upwards.

[0041] Furthermore, a stripping cylinder 7-6 is installed on the inspection bracket. The stripping cylinder 7-6 is located directly above the outer diameter go / no-go gauge 7-5, and can apply downward pressure to the part after the outer diameter inspection is completed, so as to prevent it from getting stuck in the outer diameter go / no-go gauge 7-5 due to its excessive size.

[0042] like Figure 6 As shown, the center hole inspection assembly 8 includes a positioning and measuring cylinder 8-1, an inner diameter go / no-go gauge 8-2, and a center hole laser rangefinder 8-3. The positioning and measuring cylinder 8-1 is mounted on the inspection bracket. The inner diameter go / no-go gauge 8-2 is mounted on the telescopic end of the positioning and measuring cylinder 8-1, and can descend or ascend under the drive of the cylinder 8-1. The inspection platform 2 has an inspection hole that mates with the inner diameter go / no-go gauge 8-2. The center hole laser rangefinder 8-3 is mounted directly below the inspection hole. By measuring the distance the inner diameter go / no-go gauge 8-2 descends, it determines whether the inner diameter of the measured part meets the requirements.

[0043] The 8-2 internal diameter go / no-go gauge is divided into a positioning section, an internal diameter go gauge section, and an internal diameter no-go gauge section from bottom to top. The bottom outer ring of the positioning section has a chamfer, which can center the measured part during descent. The internal diameter go gauge section is used to limit the minimum outer diameter of the measured part, and the internal diameter no-go gauge is used to limit the maximum inner diameter of the measured part.

[0044] During the specific testing process, when the inner diameter of the part being tested is greater than the minimum inner diameter of the inner diameter go gauge, the inner diameter go / no-go gauge 8-2 can descend smoothly under the action of the positioning measuring cylinder 8-1; otherwise, the inner diameter go / no-go gauge 8-2 will be stuck at the top of the part being tested. When the inner diameter of the part being tested is less than the maximum outer diameter defined by the inner diameter no-go gauge, the bottom of the inner diameter no-go gauge is restricted to the top of the part being tested, and the inner diameter go / no-go gauge 8-2 stops descending. The center hole laser rangefinder 8-3 can determine whether the inner diameter of the part being tested meets the requirements based on the descent distance of the inner diameter go / no-go gauge 8-2.

[0045] like Figure 7As shown, the height detection assembly 9 includes a pressing cylinder 9-1, a detection fixture 9-2, and a telescopic displacement sensor 9-3. The detection fixture 9-2 is mounted on the telescopic end of the pressing cylinder 9-1 and can descend or ascend under the action of the pressing cylinder 9-1. The telescopic displacement sensor 9-3 is fixed to the detection platform 2. A contact plate 9-4 is provided on one side of the detection fixture 9-2 to cooperate with the telescopic displacement sensor 9-3. Initially, the contact plate 9-4 abuts against the top of the telescopic displacement sensor 9-3. When the detection fixture 9-2 descends under the action of the pressing cylinder 9-1, the contact plate 9-4 compresses the telescopic end of the telescopic displacement sensor 9-3. The detection fixture 9-2 stops descending when its detection surface abuts against the part being measured. The telescopic displacement sensor 9-3 measures the descent value of the detection fixture 9-2. The height of the part being measured is obtained by subtracting the drop value measured by the telescopic displacement sensor 9-3 from the distance between the detection surface of the detection fixture 9-2 and the detection platform 2 in the initial state.

[0046] In this embodiment, an elastic buffer column 9-5 is provided between the detection platform 2 and the telescopic end of the pressing cylinder 9-1. When the measured part is higher than the standard value, and the detection surface of the detection fixture 9-2 preferentially abuts against the measured part, the elastic buffer column 9-5 can provide an elastic buffer distance for the telescopic end of the pressing cylinder 9-1, preventing the pressing cylinder 9-1 from directly applying rigid pressure to the detection fixture 9-2, thereby causing damage to the detection fixture 9-2, the measured part, or the detection platform 2.

[0047] like Figure 2 As shown, the unloading module 6 includes a qualified product output component 6-1 and a defective product recycling component 6-2. Parts that meet all dimensional requirements are output through the qualified product output component 6-1. If any dimensional requirement of the tested part is not met, it is output through the defective product recycling component 6-2. During the specific inspection process, if the tested part still meets the dimensional requirements after inspection by the height detection component 9 at the end, the station switching claw 4-1 at the end of the translation feeding mechanism 4 moves towards the tested part at the center hole detection component 8 station. This switches the tested part from the station of the center hole detection component 8 to the station of the height detection component 9. The tested part at the original height detection component 9 station is then pushed into the qualified product output component 6-1 by the translation feeding mechanism 4. Conversely, if the test part fails, the station switching claw 4-1 at the end moves towards the height detection component 9, and the return push cylinder 4-4 in the middle of the station switching claw 4-1 outputs it towards the defective product recycling component 6-2. The output principle for non-conforming products in outer diameter detection component 7 and center hole detection component 8 is the same.

[0048] The qualified product output assembly 6-1 includes a finished product output belt and a finished product unloading rack. The input end of the finished product output belt is connected to the output end of the testing platform 2, and is used to convey and output qualified test parts. The finished product unloading rack is located at the output end of the finished product output belt. Qualified test parts output from the finished product output belt slide down into the corresponding material box via the finished product unloading rack.

[0049] The defective product recycling component 6-2 includes a defective product output belt 6-2-1 and two recycling channels 6-6-2, corresponding to the center hole detection component 8, the outer diameter detection component 7, and the height detection component 9, respectively. When a defective part is detected by the outer diameter detection component 7, the center hole detection component 8, or the height detection component 9, the defective part detected by the center hole detection component 8 will be pushed into the defective product output belt 6-2-1 for output by the return material pushing cylinder 4-4; the defective parts detected by the outer diameter detection component 7 and the height detection component 9 will be pushed into the corresponding recycling channels 6-6-2 for centralized recycling.

[0050] 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 the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An on-line product size detection production line, characterized by: It includes a testing platform (2), and a testing bracket, a feeding and conveying mechanism (3), a translational feeding mechanism (4), a size detection module (5), and a dropping module (6) installed on the testing platform (2); the translational feeding mechanism (4) and the testing module are respectively arranged on both sides of the testing and feeding mechanism; The detection module includes an outer diameter detection component (7), a center hole detection component (8), and a height detection component (9) arranged in sequence, which are used to detect the outer diameter, inner diameter, and height of the part being tested, respectively. The translational feeding mechanism (4) includes multiple station switching claws (4-1), mounting brackets (4-2), and a dual-axis drive assembly (4-3); each station switching claw (4-1) is mounted on the moving end of the dual-axis drive assembly (4-3) via the mounting brackets (4-2), and can move horizontally along the arrangement direction of the outer diameter detection assembly (7), the center hole detection assembly (8), and the height detection assembly (9) under the drive of the dual-axis drive assembly (4-3), and can switch between moving closer to the detection platform (2) and moving further away from the detection platform (2); The unloading module (6) includes a qualified product output component (6-1) and a defective product recycling component (6-2), which are used to divert qualified parts and unqualified parts.

2. The product size on-line inspection production line according to claim 1, characterized in that: Each of the station switching claws (4-1) is equipped with a return material pushing cylinder (4-4) to push the defective parts toward the defective product recycling component (6-2).

3. The product size on-line inspection production line according to claim 1, characterized in that: The outer diameter detection component (7) includes a measuring lifting cylinder (7-1), a central positioning rod (7-2), an auxiliary block (7-3), an outer diameter laser rangefinder (7-4), and an outer diameter go / no-go gauge (7-5) mounted on the detection bracket; wherein, the central positioning rod (7-2) is mounted on the telescopic end of the measuring lifting cylinder (7-1) and can be lifted upward under the drive of the measuring lifting cylinder (7-1); the detection platform (2) is provided with a corresponding outer diameter detection through hole; the auxiliary block (7-3) is mounted on the outer ring of the central positioning rod (7-2), and its top surface is lower than the top surface of the central positioning rod (7-2); the outer diameter laser rangefinder (7-4) is mounted below the detection platform (2) by a fixed bracket and is used to detect the distance of the auxiliary block (7-3) moving upward in real time.

4. The product size on-line inspection production line according to claim 3, characterized in that: The testing bracket is equipped with a material release cylinder (7-6); the material release cylinder (7-6) is located directly above the outer diameter go / no-go gauge (7-5).

5. The product size on-line inspection production line according to claim 1, characterized in that: The center hole detection assembly (8) includes a positioning and measuring cylinder (8-1), an inner diameter go / no-go gauge (8-2), and a center hole laser rangefinder (8-3); the positioning and measuring cylinder (8-1) is mounted on the detection bracket; the inner diameter go / no-go gauge (8-2) is mounted on the telescopic end of the positioning and measuring cylinder (8-1) and can descend or ascend under the drive of the positioning and measuring cylinder (8-1); the detection platform (2) is provided with a detection hole that cooperates with the inner diameter go / no-go gauge (8-2); the center hole laser rangefinder (8-3) is mounted below the detection hole.

6. A product size on-line inspection production line according to claim 5, characterized in that: The inner diameter go / no-go gauge (8-2) is divided into a positioning part, an inner diameter go gauge part and an inner diameter no-go gauge part from bottom to top; the bottom outer ring of the positioning part is provided with a chamfer.

7. The product size on-line inspection production line according to claim 1, characterized in that: The height detection component (9) includes a pressing cylinder (9-1), a detection fixture (9-2), and a telescopic displacement sensor (9-3). The detection fixture (9-2) is installed on the telescopic end of the pressing cylinder (9-1) and can descend or rise under the drive of the pressing cylinder (9-1). The telescopic displacement sensor (9-3) is fixed on the detection platform (2). A contact plate (9-4) is provided on one side of the detection fixture (9-2) to cooperate with the telescopic displacement sensor (9-3). In the initial state, the contact plate (9-4) abuts against the top of the telescopic displacement sensor (9-3).

8. A product size on-line inspection production line according to claim 7, characterized in that: An elastic buffer column (9-5) is provided between the detection platform (2) and the telescopic end of the pressure cylinder (9-1).

9. The product size on-line inspection production line according to claim 1, characterized in that: The qualified product output component (6-1) includes a finished product output belt and a finished product unloading rack; the input end of the finished product output belt is connected to the output end of the testing platform (2) and is used to transmit and output qualified test parts; the finished product unloading rack is set at the output end of the finished product output belt.

10. The product size on-line inspection production line according to claim 1, characterized in that: The defective product recycling component (6-2) includes a defective product output belt and two recycling channels, which correspond to the outer diameter detection component (7), the center hole detection component (8), and the height detection component (9), respectively.

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