Automatic diameter measuring device for stainless steel bar

Abstract

The utility model belongs to the technical field of diameter measuring device, especially stainless steel bar stock automatic diameter measuring device, including frame and with the fixed connection of installation foot of frame, the upper and lower ends of frame install upper cylinder and lower cylinder respectively, the output of upper cylinder and lower cylinder is fixedly connected with upper clamp bar and lower clamp bar respectively, the both sides fixed connection sleeve of upper clamp bar and lower clamp bar, the sleeve is sleeved with the positioning pin, the positioning pin slidingly connects in sliding groove. The utility model, through upper cylinder and lower cylinder drive clamp bar accurate clamping, cooperate with the orientation positioning of positioning rod and perforation, ensure that the bar stock is stable and is in the middle, sensor and clearance industrial camera work in coordination, realize diameter high accuracy measurement and clamping clearance real -time monitoring, data is intuitively presented after the processing of PLC control display, has improved the diameter measuring efficiency and precision, has avoided manual operation error, can also realize data automatic record, adapts the detection demand of automatic production line.

Description

Technical Field

[0001] This utility model relates to the field of diameter measuring device technology, specifically an automated diameter measuring device for stainless steel bars. Background Technology

[0002] In the production and processing of stainless steel bars, precise control of diameter directly affects the subsequent assembly compatibility and performance of the product. Traditional diameter measurement methods mostly rely on manual sampling with handheld calipers or micrometers, which is not only inefficient (a single measurement can take more than 30 seconds), but also prone to reading errors due to factors such as the operator's skill level and physical fluctuations (accuracy can usually only be maintained within ±0.05mm), making it difficult to meet the requirements of modern production lines for full inspection, high efficiency, and high precision.

[0003] With the improvement of industrial automation, some production lines have introduced semi-automatic diameter measuring equipment, but there are still obvious limitations: First, the clamping and positioning stability is insufficient, and the bar stock is prone to displacement due to vibration, resulting in fluctuations in measurement data; second, there is a lack of real-time monitoring of the clamping gap, and when the clamping rod is worn or there are burrs on the surface of the bar stock, the phenomenon of "false clamping" is prone to occur, causing misjudgment of diameter; third, data recording relies on manual input, making it difficult to achieve linkage and traceability with the MES system, which does not meet the management needs of intelligent production.

[0004] To address the aforementioned issues, an automated diameter measurement device for stainless steel bars has been developed. It aims to resolve the pain points of low efficiency, poor accuracy, and data gaps in traditional measurement methods, meeting the online full inspection requirements of stainless steel bars and providing reliable dimensional inspection assurance for high-quality production. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides an automated diameter measuring device for stainless steel bars, which solves the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0009] An automated diameter measuring device for stainless steel bars includes a frame and mounting feet fixedly connected to the frame. An upper cylinder and a lower cylinder are respectively mounted at the upper and lower ends of the frame. An upper clamping rod and a lower clamping rod are respectively fixedly connected to the output ends of the upper and lower cylinders. Sleeves are fixedly connected to both sides of the upper and lower clamping rods, and locating pins are fitted into the sleeves. The locating pins are slidably connected in sliding grooves. Two opposing locating rods are mounted at the bottom of the upper clamping rod. A distance sensor is mounted at the bottom of the upper clamping rod. Gap industrial cameras are respectively mounted on the upper and lower clamping rods. The distance sensor and the gap industrial cameras are wired to a PLC control display, which is fixedly mounted on the side wall of the frame.

[0010] Furthermore, the mounting feet are provided with mounting positioning holes, and bolts pass through the mounting positioning holes to the ground for fixing.

[0011] Furthermore, the sliding grooves are symmetrically formed on both sides of the frame.

[0012] Furthermore, the lower clamping rod is provided with a through hole that corresponds to and matches the positioning rod, and the positioning rod moves in the through hole.

[0013] Furthermore, the distance sensor is a ZLDS116 high-temperature laser displacement sensor.

[0014] Furthermore, the gap industrial camera is the Basler ace2 series.

[0015] Furthermore, the gap industrial camera is positioned one above the other on the upper and lower clamping rods to detect the contact gap between the stainless steel bar and the upper and lower clamping rods.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides an automated diameter measuring device for stainless steel bars, which has the following advantages:

[0018] This invention uses upper and lower cylinders to drive the clamping rod for precise clamping, and with the guidance and positioning of the positioning rod and the through hole, ensures that the bar stock is stably centered. The sensor and the gap industrial camera work together to achieve high-precision diameter measurement and real-time monitoring of the clamping gap. The data is processed by the PLC control display and presented intuitively. This not only improves the efficiency and accuracy of diameter measurement, but also avoids human operation errors and enables automatic data recording, adapting to the testing needs of automated production lines. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a side view of the structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the lower clamping rod structure of this utility model.

[0022] In the diagram: 1. Frame; 2. Mounting foot; 3. Upper cylinder; 4. Lower cylinder; 5. Upper clamping rod; 6. Lower clamping rod; 7. Sleeve; 8. Positioning pin; 9. Sliding groove; 10. Positioning rod; 11. Perforation; 12. Distance sensor; 13. Gap industrial camera; 14. PLC control display. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0024] like Figure 1-3 As shown, an embodiment of the present invention provides an automated diameter measuring device for stainless steel bars, which includes a frame 1 and mounting feet 2 that are fixedly connected to the frame 1. The frame 1 is an integral structure and serves as the main supporting component of the device.

[0025] The frame 1 is equipped with an upper cylinder 3 and a lower cylinder 4 at its upper and lower ends, respectively. The output ends of the upper cylinder 3 and the lower cylinder 4 are fixedly connected to an upper clamping rod 5 and a lower clamping rod 6, respectively, to provide driving force and control the opening and closing of the upper clamping rod 5 and the lower clamping rod 6, thereby realizing the automatic clamping or releasing of stainless steel bars and adapting to the measurement needs of bars with different diameters. The upper clamping rod 5 and the lower clamping rod 6 also serve as clamping components that directly contact the stainless steel bars, and the cylinder drive achieves stable clamping of the bars. At the same time, they provide a mounting carrier for the distance sensor 12 and the gap industrial camera 13 to ensure the positional accuracy of the measuring components.

[0026] The upper clamping rod 5 and the lower clamping rod 6 are fixedly connected to the sleeves 7 on both sides. The sleeves 7 are fitted with positioning pins 8, which, together with the sliding grooves 9, restrict the movement trajectory of the upper clamping rod 5 and the lower clamping rod 6, ensuring that they move in a straight line during the opening and closing process, and avoiding deviation that affects the clamping and measurement accuracy.

[0027] The positioning pin 8 is slidably connected in the sliding groove 9. Two opposing positioning rods 10 are installed at the bottom of the upper clamping rod 5. A distance sensor 12 is installed at the bottom of the upper clamping rod 5. A gap industrial camera 13 is installed on the upper clamping rod 5 and the lower clamping rod 6 respectively. The distance sensor 12 and the gap industrial camera 13 are wired to the PLC control display 14 to receive and process the signals from the distance sensor 12 and the industrial camera, calculate the bar diameter and gap parameters, display the measurement results in real time, and realize automated data recording and monitoring.

[0028] The PLC-controlled display 14 is fixedly mounted on the side wall of the frame 1.

[0029] The working principle of the automated diameter measuring device for stainless steel bars is as follows: The frame 1 is fixed to the ground by mounting feet 2. When the stainless steel bar enters the device, the upper cylinder 3 and the lower cylinder 4 drive the upper clamping rod 5 and the lower clamping rod 6 to move along the positioning pins 8 and sleeves 7 in the sliding grooves 9 on both sides to clamp the bar. At the same time, the positioning rod 10 of the upper clamping rod 5 is inserted into the through hole 11 of the lower clamping rod 6 to assist in positioning. During the clamping process, the ZLDS116 high-temperature laser displacement sensor on the upper clamping rod 5 collects the diameter data of the bar in real time through the laser ranging principle. The Baslerace2 series gap industrial camera 13, which is set one above the other on the upper and lower clamping rods, captures the contact gap image between the bar and the clamping rod. The signals from the distance sensor 12 and the industrial camera are transmitted to the PLC control display 14. After processing, the diameter and gap parameters are calculated, displayed and stored to realize the automated diameter measuring function.

[0030] like Figure 1 As shown, in some embodiments, the mounting foot 2 is provided with mounting positioning holes, and bolts are inserted through the mounting positioning holes to the ground for fixation; fixing the device to the ground by inserting bolts through the positioning holes prevents the device from shifting due to vibration or external force during operation, thereby improving overall stability.

[0031] like Figure 2 As shown, in some embodiments, the sliding grooves 9 are symmetrically formed on both side walls of the frame 1; providing guidance for the movement of the upper clamping rod 5 and the lower clamping rod 6, ensuring the smoothness and accuracy of the clamping action.

[0032] like Figure 2 As shown, in some embodiments, the lower clamping rod 6 is provided with a through hole 11 that corresponds to and matches the positioning rod 10, and the positioning rod 10 moves in the through hole 11; the positioning rod 10 moves through the through hole 11 to help align the upper clamping rod 5 and the lower clamping rod 6 during the clamping process, so as to prevent the measurement accuracy from being affected by the positional deviation between the two.

[0033] like Figure 2As shown, in some embodiments, the distance sensor 12 is a ZLDS116 high-temperature laser displacement sensor; it measures the distance between the upper clamping rod 5 and the lower clamping rod 6 in real time through the laser ranging principle, thereby measuring the diameter data of the stainless steel bar and transmitting the signal to the PLC control display 14, and is one of the core measuring components.

[0034] like Figure 2 As shown, in some embodiments, the gap industrial camera 13 is a Baslerace2 series; it captures images of the contact gap between the stainless steel bar and the upper and lower clamping rods, analyzes the gap size through image processing, assists in judging the clamping status and measurement accuracy, and transmits the data synchronously to the PLC control display 14.

[0035] like Figure 2 As shown, in some embodiments, the gap industrial camera 13 is positioned one above the upper clamping rod 5 and the other below the lower clamping rod 6, and is used to detect the contact gap between the stainless steel bar and the upper clamping rod 5 and the lower clamping rod 6; it is specifically used to detect the contact gap between the stainless steel bar and the upper clamping rod 5 and the lower clamping rod 6. By capturing images of the gap area and combining them with image processing algorithms, the size of the gap can be accurately identified, which helps to determine the clamping state of the rod on the bar (such as whether it is too loose or too tight). This, combined with the diameter measurement data from the distance sensor 12, improves the accuracy and reliability of the overall diameter measurement, ensuring that the measurement results are not affected by unstable clamping factors.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automated diameter measuring device for stainless steel bars, comprising a frame (1) and mounting feet (2) fixedly connected to the frame (1), characterized in that: The frame (1) is equipped with an upper cylinder (3) and a lower cylinder (4) at its upper and lower ends respectively. The output ends of the upper cylinder (3) and the lower cylinder (4) are fixedly connected to an upper clamping rod (5) and a lower clamping rod (6) respectively. The upper clamping rod (5) and the lower clamping rod (6) are fixedly connected to sleeves (7) on both sides. A positioning pin (8) is sleeved in the sleeve (7). The positioning pin (8) is slidably connected in a sliding groove (9). Two opposing positioning rods (10) are installed at the bottom of the upper clamping rod (5). A distance sensor (12) is installed at the bottom of the upper clamping rod (5). A gap industrial camera (13) is installed on the upper clamping rod (5) and the lower clamping rod (6) respectively. The distance sensor (12) and the gap industrial camera (13) are wired to a PLC control display (14). The PLC control display (14) is fixedly installed on the side wall of the frame (1).

2. The automated diameter measuring device for stainless steel bars according to claim 1, characterized in that: The mounting foot (2) is provided with mounting positioning holes, and bolts are inserted through the mounting positioning holes to the ground for fixing.

3. The automated diameter measuring device for stainless steel bars according to claim 1, characterized in that: The sliding grooves (9) are symmetrically opened on both sides of the frame (1).

4. The automated diameter measuring device for stainless steel bars according to claim 1, characterized in that: The lower clamping rod (6) is provided with a through hole (11) that matches the positioning rod (10), and the positioning rod (10) moves in the through hole (11).

5. The automated diameter measuring device for stainless steel bars according to claim 1, characterized in that: The distance sensor (12) is a ZLDS116 high-temperature laser displacement sensor.

6. The automated diameter measuring device for stainless steel bars according to claim 1, characterized in that: The gap industrial camera (13) is a Basler ace2 series.

7. The automated diameter measuring device for stainless steel bars according to claim 6, characterized in that: The gap industrial camera (13) is set one above the upper clamping rod (5) and one below the lower clamping rod (6) to detect the contact gap between the stainless steel bar and the upper clamping rod (5) and the lower clamping rod (6).

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