Automatic positioning device for a hardness tester

Abstract

The utility model provides a kind of hardness machine automatic positioning device, it is related to steel processing field, for positioning steel pipe, comprising: roller way, the roller way can transport the steel pipe along the length direction of the steel pipe;Identification mechanism is located in the side of the roller way, the roller way has identification area, the identification mechanism can identify the steel pipe present in the identification area and confirm the detection position of the steel pipe;Hardness machine, the hardness machine is located above the roller way, the hardness machine can detect the hardness of the steel pipe;Transfer mechanism, the transfer mechanism is located in the other side of roller way, the transfer mechanism can move the steel pipe;The positioning device is configured as: the roller way has first position, when the one end of the steel pipe is in the first position, the transfer mechanism can move the steel pipe so that the detection position of the steel pipe is located below the hardness machine.

Description

Technical Field

[0001] This utility model relates to the field of steel processing, and in particular to an automatic positioning device for a hardness tester. Background Technology

[0002] In the automated hardening process of steel pipes, it is necessary to automatically determine and accurately locate the positions at the ends of the pipes that require grinding and hardening. Traditional positioning and detection methods often use fixed stops or photoelectric switches in conjunction with conveyor rollers for positioning, which has problems such as being unable to avoid end notches, insufficient positioning accuracy, and low efficiency. Utility Model Content

[0003] The purpose of this invention is to provide an automatic positioning device for a hardness tester, which enables accurate positioning during the hardness testing of steel pipes.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automatic positioning device for a hardness tester, used for positioning steel pipes, comprising: a roller conveyor capable of transporting the steel pipe along its length; an identification mechanism located on one side of the roller conveyor, the roller conveyor having an identification area, the identification mechanism capable of identifying the steel pipe appearing in the identification area and confirming the detection position of the steel pipe; a hardness tester located above the roller conveyor, the hardness tester capable of testing the hardness of the steel pipe; and a transfer mechanism located on the other side of the roller conveyor, the transfer mechanism capable of moving the steel pipe; the positioning device is configured such that: when the roller conveyor has a first position, and one end of the steel pipe is in the first position, the transfer mechanism can move the steel pipe so that the detection position of the steel pipe is below the hardness tester.

[0005] Furthermore, the automatic positioning device includes a frame, and the hardness tester is mounted on the frame.

[0006] Furthermore, the transfer mechanism includes a fixed unit and a transfer unit, the transfer unit being connected to the fixed unit, the transfer unit being able to drive the fixed unit to move, and the fixed unit being able to clamp the steel pipe.

[0007] Furthermore, the fixing unit includes a clamping cylinder and a clamp, the clamping cylinder is connected to the clamp, the clamping cylinder can drive the clamp, and the clamp is connected to the transfer unit.

[0008] Furthermore, the transfer unit includes a slide rail base, a slide rail, a transfer cylinder, and a cylinder fixing base. The slide rail is disposed on the slide rail base, the transfer cylinder is disposed on the cylinder fixing base, the clamp is slidably connected to the slide rail, the output end of the transfer cylinder is connected to the clamp, and the transfer cylinder can drive the clamp to slide on the slide rail.

[0009] Furthermore, the recognition mechanism includes a camera stand and a 3D camera, the 3D camera being mounted on the camera stand with its lens facing the recognition area.

[0010] Analysis reveals that this utility model discloses an automatic positioning device for a hardness tester. The above-described embodiments of this utility model achieve the following technical effects: This utility model accurately identifies the shape of the rough edges of the steel pipe and the distance between each point of the rough edges and the fixed-point camera using fixed-point 3D imaging technology. Combined with the back-and-forth movement of the transfer mechanism, it can automatically, accurately, and efficiently adjust the position of the steel pipe on the roller conveyor within a certain range, ensuring that the distance between the detection position and the deepest point of the circumferential notch of the rough edge of the steel pipe is the set value. This, combined with the hardness tester, achieves high-precision surface hardness testing of the steel pipe. This device overcomes the problems of inaccurate positioning and low efficiency in traditional methods and has high practical value. Attached Figure Description

[0011] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. Wherein: Figure 1 A schematic diagram of the structure of an embodiment of this utility model.

[0012] Explanation of reference numerals in the attached diagram: 1. Camera stand; 2. 3D camera; 3. Machine frame; 4. Clamping cylinder; 5. Clamp; 6. Hardness tester; 7. Slide rail; 8. Slide rail seat; 9. Transfer cylinder; 10. Cylinder mounting seat; 11. Roller conveyor. Detailed Implementation

[0013] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of explanation of the present invention and not by way of limitation. In fact, those skilled in the art will recognize that modifications and variations can be made to the present invention without departing from the scope or spirit of the invention. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present invention encompass such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0014] In the description of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. The terms "connected," "linked," and "set up" used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a direct connection or an indirect connection through intermediate components; a wired connection, a radio connection, or a wireless communication signal connection. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0015] The accompanying drawings illustrate one or more examples of the present invention. The detailed description uses numerals and letters to refer to features in the drawings. Similar or analogous reference numerals in the drawings and description have been used to refer to similar or analogous parts of the present invention. As used herein, the terms “first,” “second,” “third,” and “fourth,” etc., are used interchangeably to distinguish one component from another and are not intended to indicate the location or importance of a single component.

[0016] like Figure 1 As shown, according to an embodiment of the present invention, an automatic positioning device for a hardness tester is provided for positioning a steel pipe, including: a roller conveyor 11, which can transport the steel pipe along the length of the steel pipe. The positioning device is configured such that: the roller conveyor 11 has a first position, and when one end of the steel pipe is in the first position, the transfer mechanism can move the steel pipe so that the detection position of the steel pipe is located below the hardness tester 6.

[0017] The roller conveyor 11 is typically a V-shaped roller conveyor 11 to ensure smooth transport of the steel pipe. The roller conveyor 11 extends along the length of the steel pipe, and its transport speed can be dynamically adjusted according to the weight and surface condition of the steel pipe. The roller conveyor 11 is divided into two key areas: the first position is located at the input end of the roller conveyor 11, serving as the identification point for the steel pipe. When the front end of the steel pipe reaches this position, the identification mechanism is triggered to identify the steel pipe. Typically, a photoelectric switch is installed at the first position; when the steel pipe reaches the first position, the photoelectric switch is triggered, and the identification mechanism begins to operate.

[0018] An identification mechanism is located on one side of the roller conveyor 11, which has an identification area. The identification mechanism can identify steel pipes appearing in the identification area and confirm their detection positions. The identification mechanism includes a camera mount 31 and a 3D camera 2. The 3D camera 2 is mounted on the camera mount 31, and its lens faces the identification area. The identification mechanism has an identification area that covers a portion of the conveying area formed by the roller conveyor 11. The identification mechanism can identify steel pipes appearing in the identification area, and the 3D camera 2 can detect the distance from various points on the steel pipe to itself while identifying any rough edges or defects on the steel pipe.

[0019] Hardness tester 6 is located above roller conveyor 11. Hardness tester 6 is capable of testing the hardness of steel pipes. The automatic hardness tester 6 positioning device includes a frame 3, on which the hardness tester 6 is mounted. The hardness tester 6 is used to test the hardness of steel pipes, and its testing end faces vertically toward roller conveyor 11.

[0020] The transfer mechanism is located on the other side of the roller conveyor 11. The transfer mechanism can change the position of the steel pipe on the roller conveyor 11.

[0021] The transfer mechanism includes a fixed unit and a transfer unit. The transfer unit is connected to the fixed unit. The transfer unit can drive the fixed unit to move, and the fixed unit can clamp the steel pipe.

[0022] The fixing unit includes a clamping cylinder 4 and a clamp 5. The clamping cylinder 4 is connected to the clamp 5, and the clamping cylinder 4 can drive the clamp 5. The clamp 5 is connected to the transfer unit.

[0023] The transfer unit includes a slide rail seat 8, a slide rail 7, a transfer cylinder 9, and a cylinder fixing seat 10. The slide rail 7 is mounted on the slide rail seat 8, and the transfer cylinder 9 is mounted on the cylinder fixing seat 10. The clamp 5 is slidably connected to the slide rail 7, and the output end of the transfer cylinder 9 is connected to the clamp 5. The transfer cylinder 9 can drive the clamp 5 to slide on the slide rail 7.

[0024] The fixing unit consists of a clamping cylinder 4 and a clamp 5. The clamp 5 typically employs an adaptive jaw design with embedded elastic material to accommodate steel pipes of different diameters, preventing surface damage. The fixing unit provides adjustable clamping force to ensure the steel pipe does not slip during adjustment. The transfer unit includes a slide rail system 7 and a transfer cylinder 9. The slide rail 7 ensures the clamp 5 moves smoothly along a preset trajectory; the transfer cylinder 9 moves the clamp 5 to a different position.

[0025] The specific working principle of this device is as follows: 3D camera 2 is installed on camera frame 31. After installation and fixation, the horizontal distance between point A of 3D camera 2 and the detection end of hardness tester 6 is a fixed value L0; one end of transfer cylinder 9 is fixedly connected to clamp 5, and the other end is fixed to the ground through cylinder fixing seat 10; slide rail 7 is horizontally fixed on slide rail seat 8, and clamp 5 can move horizontally along slide rail 7. When the steel pipe reaches the vicinity of the automatic hardening machine 6 frame 3 via the roller conveyor 11 and photoelectric switch, it can be understood that when point B of the steel pipe reaches the first position, the clamping cylinder 4 clamps the steel pipe through the clamp 5. After receiving the instruction, the 3D camera 2 takes a picture of the end of the steel pipe, identifies it, and measures the distance to find the deepest point C of the burr notch on the steel pipe. The distance from point C on the steel pipe to point A on the reference plane of the 3D camera 2 is measured to be L2. In reality, the hardness test needs to be performed at point D, which is a distance L1 from the deepest point C of the burr notch on the steel pipe. The distance L1 is determined according to the actual production needs. Therefore, the steel pipe needs to be moved to the right by a distance equal to L0-L2-L1. Based on the calculation result, the transfer cylinder 9 is controlled to move to the right by a distance of L0-L2-L1, which drives the clamp 5 and the steel pipe to move to the right by a distance of L0-L2-L1. At this time, the pressure head E of the hardening machine 6 coincides with point D, realizing the purpose of testing the hardness at a fixed distance of L1. The operation ensures both the accuracy of the steel pipe hardness test and the safety of the hardness tester 6 during the test.

[0026] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects: This utility model accurately identifies the shape of the steel pipe burr and the distance of each point of the steel pipe burr from the fixed-point camera through fixed-point 3D imaging technology. Combined with the back-and-forth movement of the transfer mechanism, it can automatically, accurately, and efficiently adjust the position of the steel pipe on the roller conveyor within a certain range, ensuring that the distance between the detection position and the deepest point of the circumferential notch of the steel pipe burr is the set value. Combined with the hardness tester 6, it achieves high-precision surface hardness detection of the steel pipe. This device overcomes the problems of inaccurate positioning and low efficiency in traditional methods and has high practical value.

[0027] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic positioning device for a hardness tester, used for positioning steel pipes, characterized in that, include: A roller conveyor capable of transporting the steel pipe along its length; An identification mechanism is located on one side of the roller conveyor, which has an identification area. The identification mechanism is able to identify steel pipes appearing in the identification area and confirm the detection position of the steel pipes. A hardness tester is located above the roller conveyor and is capable of testing the hardness of the steel pipe. A transfer mechanism is located on the other side of the roller conveyor and is capable of moving the steel pipe; The positioning device is configured such that when the roller conveyor has a first position and one end of the steel pipe is in the first position, the transfer mechanism can move the steel pipe so that the detection position of the steel pipe is below the hardness tester.

2. The automatic positioning device for a hardness tester according to claim 1, characterized in that, The automatic positioning device includes a frame, and the hardness tester is mounted on the frame.

3. The automatic positioning device for a hardness tester according to claim 1, characterized in that, The transfer mechanism includes a fixed unit and a transfer unit. The transfer unit is connected to the fixed unit. The transfer unit can drive the fixed unit to move, and the fixed unit can clamp the steel pipe.

4. The automatic positioning device for a hardness tester according to claim 3, characterized in that, The fixing unit includes a clamping cylinder and a clamp. The clamping cylinder is connected to the clamp and can drive the clamp. The clamp is connected to the transfer unit.

5. The automatic positioning device for a hardness tester according to claim 4, characterized in that, The transfer unit includes a slide rail base, a slide rail, a transfer cylinder, and a cylinder fixing base. The slide rail is mounted on the slide rail base, the transfer cylinder is mounted on the cylinder fixing base, the clamp is slidably connected to the slide rail, the output end of the transfer cylinder is connected to the clamp, and the transfer cylinder can drive the clamp to slide on the slide rail.

6. The automatic positioning device for a hardness tester according to claim 1, characterized in that, The recognition mechanism includes a camera stand and a 3D camera, the 3D camera being mounted on the camera stand with its lens facing the recognition area.

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