A round bar sample tensile eccentric sampling and processing equipment

Abstract

This invention belongs to the field of sample sampling and processing technology, specifically relating to a tensile eccentric sampling and processing device for round bar samples. It includes a main machine, a main chuck, a secondary chuck, and a turret. The main machine has a working chamber, with the main and secondary chucks located on the left and right side walls of the working chamber, respectively. The main and secondary chucks have identical structures. The turret is positioned above the main and secondary chucks. It also includes a vision inspection mechanism and a moving mechanism. The moving mechanism is mounted on the rear side wall of the working chamber, and the vision inspection mechanism is installed at the output end of the moving mechanism. The vision inspection mechanism is used to inspect the surface quality and shape of the sample. In this invention, the vision inspection mechanism is mounted on the rear side wall of the working chamber via the moving mechanism. The vision inspection mechanism is used to inspect the surface quality and shape of the sample, thereby determining whether its surface quality and shape are qualified, and ultimately ensuring the quality of the obtained sample.

Description

Technical Field

[0001] This invention belongs to the field of sample sampling and processing technology, specifically relating to a device for eccentric sampling and processing of round bar samples under tensile stress. Background Technology

[0002] Steel mills must sample and test the mechanical properties of steel during production to determine if it meets quality requirements. Mechanical property testing provides detailed information about material properties, helping engineers select appropriate materials during the design phase to meet specific engineering needs. Conducting mechanical property testing during production helps ensure that manufactured metallic materials meet standard requirements. Understanding a material's strength, deformation, and impact toughness is crucial for structural design to ensure the structure's safety and reliability in actual use. Mechanical property testing is an important means of evaluating the mechanical properties of metallic materials, providing fundamental data for engineering applications. The mechanical properties obtained from sampling steel at different locations will vary. GB / T2975-2018 has strict requirements for the sampling locations of steel and steel products to ensure the accuracy of mechanical property test results. For example, GB / T2975-2018 requires that a 12.5mm eccentric part be machined for round bar specimens with a diameter of 25mm < d ≤ 50mm. However, the current common practice is to first take out a round bar from a hollow drill and then machine the specimen on a lathe. This not only wastes time and increases costs, but also increases the labor intensity of workers, resulting in low processing efficiency. It also has problems such as inaccurate positioning of the round bar, which cannot guarantee the authenticity and accuracy of the specimen.

[0003] Chinese invention patent CN118654916A discloses a tensile eccentric sampling and processing device for round bar specimens. This device can complete specimen sampling and processing in one unit, improving accuracy and processing efficiency, exhibiting a high degree of automation, and reducing the labor intensity of workers. It has significant potential for widespread application. However, this device lacks surface quality and shape detection mechanisms, thus failing to guarantee processing quality. Therefore, there is an urgent need to design a tensile eccentric sampling and processing device for round bar specimens capable of detecting surface quality and shape. Summary of the Invention

[0004] To address the problems existing in the prior art, this invention discloses a device for eccentric sampling and processing of round bar specimens under tensile stress, and specifically discloses the following technical solutions: A tensile eccentric sampling and processing device for round bar specimens includes a main machine, a main chuck, a secondary chuck, and a turret. The main machine has a working chamber. The main chuck and the secondary chuck are located on the left and right side walls of the working chamber, respectively. The main chuck and the secondary chuck have the same structure. The turret is located above the main chuck and the secondary chuck. The device also includes a vision inspection mechanism and a moving mechanism. The moving mechanism is installed on the rear side wall of the working chamber, and the vision inspection mechanism is installed at the output end of the moving mechanism. The vision inspection mechanism is used to inspect the surface quality and shape of the specimen.

[0005] Furthermore, the moving mechanism includes an electric linear slide fixedly mounted on the rear side wall of the working cavity and a six-degree-of-freedom robotic arm fixedly mounted on the slide base of the electric linear slide, and the vision inspection mechanism is mounted on the free end of the six-degree-of-freedom robotic arm.

[0006] Furthermore, the visual inspection mechanism includes a fixed column, one end of which is fixedly connected to the free end of the six-degree-of-freedom robotic arm, and the other end of which has a U-shaped groove. Two mounting rings are fixedly connected to the end of the fixed column away from the six-degree-of-freedom robotic arm, and the two mounting rings are respectively located on both sides of the U-shaped groove. A sleeve is rotatably installed inside the two mounting rings. A first camera is fixedly installed on the inner wall of the sleeve, and a second camera is fixedly connected to the center of one end of the sleeve through a bracket. A first gear is fixedly connected to the outer wall of the sleeve at the position corresponding to the U-shaped groove. A second gear that meshes with the first gear is rotatably installed in the U-shaped groove through a rotating shaft. One end of the rotating shaft is connected to a drive motor fixed to the side wall of the fixed column.

[0007] Furthermore, several lighting lamps are installed circumferentially on the inner wall of the sleeve.

[0008] Furthermore, four sliding grooves are provided on the end face of the main chuck, and a sliding seat is slidably installed in each sliding groove. The sliding seat is slidably installed on the spiral ring on the surface of the ring gear inside the main chuck, and two chuck claws are respectively installed at intervals on the outer surface of each sliding seat through a floating mechanism.

[0009] Furthermore, the floating mechanism includes a guide post, a slider, and a spring. The guide post is fixedly connected to a strip-shaped mounting groove on the outer surface of the sliding seat. The slider is slidably mounted in the strip-shaped mounting groove and slidably sleeved on the guide post. The spring is sleeved on the guide post and located on the side of the slider away from the center of the main chuck. The chuck jaws are fixedly mounted on the outer surface of the slider.

[0010] Furthermore, the length direction of the strip mounting groove is parallel to the sliding direction of the corresponding sliding seat.

[0011] Furthermore, the clamping end of the claw is configured as an arc surface.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: In this invention, a visual inspection mechanism is installed on the rear side wall of the working chamber via a moving mechanism. The visual inspection mechanism is used to inspect the surface quality and shape of the sample, thereby determining whether its surface quality and shape are qualified, and ultimately ensuring the quality of the sample. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a top view of the present invention.

[0015] Figure 3 This is a top view of the structure of the moving mechanism and the visual inspection mechanism in this invention.

[0016] Figure 4 This is a right view of the visual inspection mechanism in this invention.

[0017] Figure 5 This is a schematic diagram of the main chuck in this invention.

[0018] The components are: 1-Complete machine, 2-Main chuck, 3-Secondary chuck, 4-Turret, 5-Electric linear slide, 6-Six-degree-of-freedom robotic arm, 7-Fixed column, 8-Mounting ring, 9-Sleeve, 10-First camera, 11-Bracket, 12-Second camera, 13-First gear, 14-Second gear, 15-Drive motor, 16-Sliding seat, 17-Claw, 18-Guide column, 19-Slider, 20-Spring. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Reference Figure 1-5A tensile eccentric sampling and processing device for round bar specimens includes a main machine 1, a main chuck 2, a secondary chuck 3, and a turret 4. The main machine 1 is provided with a working chamber. The main chuck 2 and the secondary chuck 3 are located on the left and right side walls of the working chamber, respectively. The main chuck 2 and the secondary chuck 3 have the same structure. The turret 4 is located above the main chuck 2 and the secondary chuck 3. The device also includes a vision inspection mechanism and a moving mechanism. The moving mechanism is installed on the rear side wall of the working chamber, and the vision inspection mechanism is installed at the output end of the moving mechanism. The vision inspection mechanism is used to inspect the surface quality and shape of the specimen.

[0021] In this embodiment, the moving mechanism includes an electric linear slide 5 fixedly mounted on the rear side wall of the working chamber and a six-degree-of-freedom robotic arm 6 fixedly mounted on a slide block of the electric linear slide 5. A vision inspection mechanism is mounted on the free end of the six-degree-of-freedom robotic arm 6. The electric linear slide 5 is arranged horizontally and can drive the six-degree-of-freedom robotic arm 6 to slide left and right as a whole, thereby enabling the vision inspection mechanism to inspect the specimen on the main chuck 2 or the auxiliary chuck 3.

[0022] In this embodiment, the visual inspection mechanism includes a fixed column 7. One end of the fixed column 7 is fixedly connected to the free end of the six-degree-of-freedom robotic arm 6, and the other end is provided with a U-shaped groove. Two mounting rings 8 are fixedly connected to the end of the fixed column 7 away from the six-degree-of-freedom robotic arm 6. The two mounting rings 8 are respectively located on both sides of the U-shaped groove. A sleeve 9 is rotatably installed inside the two mounting rings 8. A first camera 10 is fixedly installed on the inner wall of the sleeve 9. A second camera 12 is fixedly connected to the center of one end of the sleeve 9 through a bracket 11. A first gear 13 is fixedly connected to the outer wall of the sleeve 9 at the position corresponding to the U-shaped groove. A second gear 14 that meshes with the first gear 13 is rotatably installed in the U-shaped groove through a rotating shaft. One end of the rotating shaft is connected to a drive motor 15 fixed on the side wall of the fixed column 7. The movement of the electric linear slide 5 and the six-degree-of-freedom robotic arm 6 allows the sleeve 9 to be placed on the outside of the specimen to be tested. The second camera 12 can take pictures of the end face shape of the specimen for inspection. Then, the drive motor 15 is started to drive the second gear 14 to rotate. The second gear 14 drives the first gear 13, the sleeve 9 and the first camera 10 on the inner wall of the sleeve 9 to rotate, thereby scanning and inspecting the surface quality of the specimen through the first camera 10.

[0023] In this embodiment, several lighting lamps are installed circumferentially on the inner wall of the sleeve 9, which can provide sufficient light source and thus improve the detection quality.

[0024] In this embodiment, four sliding grooves are provided on the end face of the main chuck 2, and a sliding seat 16 is slidably installed in each sliding groove. The sliding seat 16 is slidably installed on the spiral ring on the surface of the ring gear inside the main chuck 2. Two jaws 17 are respectively installed at intervals on the outer surface of each sliding seat 16 through a floating mechanism. The internal structure of the main chuck 2 is prior art and will not be described in detail here.

[0025] By driving the ring gear to rotate, the four sliding seats 16 can be driven to move synchronously in a centripetal or centrifugal motion along their respective sliding grooves, and the corresponding chucks 17 can be driven to complete the corresponding actions, thereby achieving the clamping or release of the specimen.

[0026] In this embodiment, the floating mechanism includes a guide post 18, a slider 19, and a spring 20. The guide post 18 is fixedly connected to a strip-shaped mounting groove on the outer surface of the sliding seat 16. The slider 19 is slidably mounted in the strip-shaped mounting groove and slidably sleeved on the guide post 18. The spring 20 is sleeved on the guide post 18 and located on the side of the slider 19 away from the center of the main chuck 2. The jaws 17 are fixedly mounted on the outer surface of the slider 19. When the clamping end of the jaws 17 is subjected to force, it can push the slider 19 to float against the elastic force of the spring 20. When clamping cylindrical or square specimens, the spring 20 can act as a buffer. When clamping irregularly shaped specimens, the corresponding jaws 17 can generate different floating amounts according to the shape of the specimen, thereby achieving stable clamping.

[0027] In this embodiment, the length direction of the strip mounting groove is parallel to the sliding direction of the corresponding sliding seat 16.

[0028] In this embodiment, the clamping end of the claw 17 is set as an arc surface, thereby ensuring that the clamping end of each claw 17 is in contact with the specimen.

[0029] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A round bar sample tensile eccentric sampling and processing equipment, comprising a whole machine, a main chuck, a secondary chuck and a cutter tower, a working cavity is arranged on the whole machine, the main chuck and the secondary chuck are respectively located on the left and right side walls of the working cavity, the main chuck and the secondary chuck are the same in structure, and the cutter tower is arranged above the main chuck and the secondary chuck, characterized in that, It also includes a visual inspection mechanism and a moving mechanism. The moving mechanism is installed on the rear side wall of the working chamber, and the visual inspection mechanism is installed at the output end of the moving mechanism. The visual inspection mechanism is used to inspect the surface quality and shape of the sample.

2. The equipment for eccentric sampling and processing of round bar specimens under tensile stress according to claim 1, characterized in that, The moving mechanism includes an electric linear slide fixedly mounted on the rear side wall of the working chamber and a six-degree-of-freedom robotic arm fixedly mounted on the slide base of the electric linear slide. The vision inspection mechanism is mounted on the free end of the six-degree-of-freedom robotic arm.

3. The equipment for eccentric sampling and processing of round bar specimens under tensile stress according to claim 2, characterized in that, The visual inspection mechanism includes a fixed column. One end of the fixed column is fixedly connected to the free end of the six-degree-of-freedom robotic arm, and the other end has a U-shaped groove. Two mounting rings are fixedly connected to the end of the fixed column away from the six-degree-of-freedom robotic arm. The two mounting rings are respectively located on both sides of the U-shaped groove. A sleeve is rotatably installed inside the two mounting rings. A first camera is fixedly installed on the inner wall of the sleeve. A second camera is fixedly connected to the center of one end of the sleeve through a bracket. A first gear is fixedly connected to the outer wall of the sleeve at the position corresponding to the U-shaped groove. A second gear that meshes with the first gear is rotatably installed in the U-shaped groove through a rotating shaft. One end of the rotating shaft is connected to a drive motor fixed to the side wall of the fixed column.

4. The equipment for eccentric sampling and processing of round bar specimens under tensile stress according to claim 3, characterized in that, Several lighting lamps are installed circumferentially on the inner wall of the sleeve.

5. The equipment for eccentric sampling and processing of round bar specimens under tensile stress according to claim 1, characterized in that, The main chuck has four sliding grooves on its end face, and a sliding seat is slidably installed in each sliding groove. The sliding seat is slidably installed on the spiral ring on the surface of the ring gear inside the main chuck. Two chuck claws are installed at intervals on the outer surface of each sliding seat through a floating mechanism.

6. The equipment for eccentric sampling and processing of round bar specimens under tensile stress according to claim 5, characterized in that, The floating mechanism includes a guide post, a slider, and a spring. The guide post is fixedly connected to a strip-shaped mounting groove on the outer surface of the sliding seat. The slider is slidably mounted in the strip-shaped mounting groove and slidably sleeved on the guide post. The spring is sleeved on the guide post and located on the side of the slider away from the center of the main chuck. The chuck jaws are fixedly mounted on the outer surface of the slider.

7. The equipment for eccentric sampling and processing of round bar specimens under tensile stress according to claim 6, characterized in that, The length direction of the strip mounting groove is parallel to the sliding direction of the corresponding sliding seat.

8. The equipment for eccentric sampling and processing of round bar specimens under tensile stress according to claim 6, characterized in that, The gripping end of the chuck is designed with an arc surface.

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