Dimension measuring device and method for metal round bar sample

Abstract

The invention discloses a size measuring device and method for a metal round bar sample, and belongs to the technical field of metal material detection. The size measuring device comprises a box body; the supporting block is arranged at the top of the box body and is used for placing a sample to be tested; the guide rail is arranged on one side of the supporting block; the moving assembly is arranged on one side of the supporting block and is in sliding connection with the guide rail; the moving assembly is connected with the control system and moves along the length direction of the sample to be detected after receiving a moving signal of the control system; the diameter measuring sensor is mounted on the moving assembly; and the diameter measuring sensor is connected with the control system and measures the distance to the sample to be measured after receiving a measuring signal of the control system. By measuring the diameter of the metal round bar sample, the cross section area of the parallel section of the metal round bar sample can be calculated, the measurement precision is higher, and the repeatability and the consistency are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of metal material detection, and in particular relates to a device and method for measuring the size of a metal round bar sample. Background Art

[0002] According to the standard requirements of the metal material mechanical testing method, when measuring the size of a metal round bar specimen, it is necessary to measure the parallel part of the specimen in two mutually perpendicular directions at the left, middle and right positions to obtain the cross-sectional area of the parallel section.

[0003] However, currently all laboratories use manual measurement, which is simple to operate and low-cost, but inefficient. Human errors lead to low accuracy, poor repeatability and consistency, and cannot achieve automatic archiving and traceability of data. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a size measuring device for a metal round rod sample. By measuring the diameter of the metal round rod sample, the cross-sectional area of the parallel section of the metal round rod sample can be calculated, with higher measurement accuracy and improved repeatability and consistency.

[0005] The present invention provides the following technical solutions: In a first aspect, a device for measuring the size of a metal round bar specimen is provided, comprising: a box; A support block is provided on the top of the box and is used to place the sample to be tested; a guide rail, provided on one side of the support block; A moving component is provided on one side of the support block and is slidably connected to the guide rail; the moving component is connected to the control system and moves along the length direction of the sample to be tested after receiving a movement signal from the control system; The diameter measuring sensor is installed on the mobile component; the diameter measuring sensor is connected to the control system, and measures the distance to the sample to be measured after receiving the measurement signal from the control system.

[0006] As an optional technical solution of the present invention, it also includes a protective cover; the protective cover is arranged at one end of the top of the box body away from the support block; one end of the guide rail is located in the protective cover.

[0007] As an optional technical solution of the present invention, two support blocks are provided.

[0008] As an optional technical solution of the present invention, the support block is C-shaped, and a slot is provided on the top thereof, and both ends of the sample to be tested are respectively clamped in the slot.

[0009] As an optional technical solution of the present invention, the moving component includes a mounting seat, a connecting seat and a mounting frame; the mounting seat is slidably connected to the guide rail, the connecting seat is fixed to the top of the mounting seat, and the mounting frame is fixed to the top of the connecting seat for installing a diameter measuring sensor.

[0010] As an optional technical solution of the present invention, the diameter measuring sensor includes a diameter measuring sensor transmitting end and a diameter measuring sensor receiving end; the diameter measuring sensor transmitting end is fixed to the top of the mounting frame, and the diameter measuring sensor receiving end is installed at the bottom of the mounting frame.

[0011] As an optional technical solution of the present invention, when the size measuring device is in working state, the diameter measuring sensor transmitting end and the diameter measuring sensor receiving end are respectively located on the upper and lower sides of the sample to be measured.

[0012] In a second aspect, a measurement method is provided for use with the size measurement device for the metal round bar sample according to the first aspect, comprising: Placing the sample to be tested on a support block; The moving component receives a moving signal from the control system and moves to three test points of the sample to be tested in sequence; The diameter measuring sensor receives the measurement signal of the control system, measures the distance to the three measurement points of the sample to be measured and sends the distance to the control system; After the three test points are measured, the sample to be tested is rotated 90 degrees along its axis; Re-measure the distances from the diameter measuring sensor to the three measuring points of the sample to be measured and send them to the control system.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The size measuring device for metal round rod specimens provided by the present invention measures the diameter of the metal round rod specimen by a moving component in conjunction with a diameter measuring sensor, and then calculates the cross-sectional area of the parallel section of the metal round rod specimen. The measurement accuracy is higher, the repeatability and consistency are improved, and the device is easy to operate, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 2 is a schematic structural diagram of a device for measuring the size of a metal round bar sample according to an embodiment of the present invention; Figure 2 is a side view of a device for measuring the size of a metal round bar specimen according to an embodiment of the present invention; Figure 3 yes Figure 2 Enlarged image from the CC perspective; Figure 4 This is a partial structural diagram of a device for measuring the size of a metal round bar sample according to an embodiment of the present invention; Figure 5Schematic diagram of the structure of the metal round rod sample in an embodiment of the present invention.

[0015] Marked in the figure are: box 1, protective cover 2, support block 3, guide rail 4, moving component 5, mounting seat 5-1, connecting seat 5-2, mounting frame 5-3, diameter measuring sensor 6, diameter measuring sensor transmitting end 6-1, diameter measuring sensor receiving end 6-2, and sample to be measured 7. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0017] Example 1 like Figures 1-4 As shown, this embodiment provides a device for measuring the size of a metal round bar sample, comprising: Box 1.

[0018] The support block 3 is provided at the top of the box 1 and is used to place the sample 7 to be tested. In this embodiment, the support block 3 is provided in pairs, and the support block 3 is C-shaped, with a slot provided on the top, and the two ends of the sample 7 to be tested are respectively clamped in the slot. Figure 5 As shown, in this embodiment, the sample to be measured is a metal round bar, which includes two ends and a parallel portion in the middle. This measuring device is used to measure the cross-sectional area of the parallel portion.

[0019] The guide rail 4 is provided on one side of the support block 3 and is used to move the component 5 along the guide rail 4 .

[0020] The movable assembly 5 is located on one side of the support block 3 and is slidably connected to the guide rail 4. The movable assembly 5 is connected to the control system and receives movement signals from the control system to move along the length of the sample 7 to be tested. The movable assembly 5 includes a mounting base 5-1, a connecting base 5-2, and a mounting bracket 5-3. The mounting base 5-1 is slidably connected to the guide rail 4, the connecting base 5-2 is fixed to the top of the mounting base 5-1, and the mounting bracket 5-3 is fixed to the top of the connecting base 5-2 and is used to mount the diameter measuring sensor 6.

[0021] The diameter measuring sensor 6 is installed on the moving component 5 and moves with the moving component 5. The diameter measuring sensor 6 is connected to the control system, and measures the distance to the sample to be measured 7 after receiving the measurement signal from the control system. The diameter measuring sensor 6 includes a diameter measuring sensor transmitting end 6-1 and a diameter measuring sensor receiving end 6-2; the diameter measuring sensor transmitting end 6-1 is fixed to the top of the mounting frame 5-3, and the diameter measuring sensor receiving end 6-2 is installed at the bottom of the mounting frame 5-3. When the size measuring device is in working state, the diameter measuring sensor transmitting end 6-1 and the diameter measuring sensor receiving end 6-2 are respectively located on the upper and lower sides of the sample to be measured 7. The distance between the diameter measuring sensor transmitting end 6-1 and the diameter measuring sensor receiving end 6-2 is a fixed value. By measuring the distance to the sample to be measured 7 respectively, the diameter of the sample to be measured can be calculated.

[0022] Protective cover 2 is located at the top end of the box body 1, away from the support block 3. One end of the guide rail 4 is located within the protective cover 2. When not in operation, the moving assembly 5 and the diameter sensor 6 are located within the protective cover 2, protecting them from dust and contamination, keeping the diameter sensor clean.

[0023] In this embodiment, the diameter measuring sensor 6 adopts a precision photoelectric detection sensor, the measuring range of which can meet the measurement range of on-site samples, the resolution is 0.001mm, and the accuracy is ±0.001mm.

[0024] Example 2 This embodiment provides a measurement method based on the first embodiment. Specifically, it includes: Step 1: Place the sample 7 to be tested on the support block 3 .

[0025] In this embodiment, the robot grabs the metal round bar and places it on the support block 3.

[0026] Step 2: The moving component 5 receives the moving signal from the control system and moves to the three test points of the sample 7 in sequence.

[0027] In this embodiment, three evenly spaced points on the left, middle, and right of the parallel section of the metal round bar are selected as the test points. Figure 5 The moving assembly 5 moves to each point to be measured under the control of the control system.

[0028] Step 3: The diameter measuring sensor 6 receives the measurement signal from the control system, measures the distances to the three measured points of the sample 7 and sends the distances to the control system.

[0029] After the moving assembly 5 moves to each point to be measured, the diameter measuring sensor 6 measures the distance from the diameter measuring sensor transmitting end 6 - 1 and the diameter measuring sensor receiving end 6 - 2 to the point to be measured respectively under the control of the control system.

[0030] Step 4: After the three test points are measured, the test sample 7 is rotated 90 degrees axially.

[0031] In this embodiment, the robot grabs the sample to be tested, rotates it axially by 90 degrees, and places the rotated sample on the support block 3 .

[0032] Step 5: Re-measure the distances from the diameter measuring sensor 6 to the three measured points of the sample 7 and send them to the control system.

[0033] The moving assembly 5 drives the diameter measuring sensor 6 to move to the parallel section of the metal rod for secondary measurement. The same three points to be measured in step 3 are selected for secondary measurement.

[0034] Cross-sectional area calculation principle: After receiving the two measurement results, the control system first calculates the diameter based on the six measurement results, which is expressed as: d=A-(X1+X2); Wherein, d represents the diameter, A represents the distance between the diameter measuring sensor transmitting end 6-1 and the diameter measuring sensor receiving end 6-2, X1 represents the distance from the diameter measuring sensor transmitting end to the metal round bar, and X2 represents the distance from the diameter measuring sensor receiving end to the metal round bar.

[0035] The cross-sectional area of each point to be measured is calculated according to the calculated diameter, and the six cross-sectional areas are averaged to obtain the final cross-sectional area calculation result.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0037] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A device for measuring the size of a metal round bar sample, characterized in that: include: Box (1); A support block (3) is provided on the top of the box (1) and is used to place the sample (7) to be tested; A guide rail (4) is provided on one side of the support block (3); A moving component (5) is provided on one side of the support block (3) and is slidably connected to the guide rail (4); the moving component (5) is connected to the control system and moves along the length direction of the sample to be tested (7) after receiving a movement signal from the control system; A diameter measuring sensor (6) is mounted on the moving assembly (5); the diameter measuring sensor (6) is connected to the control system, and measures the distance to the sample to be measured (7) after receiving a measurement signal from the control system.

2. The device for measuring the size of a metal round bar specimen according to claim 1, characterized in that: Also included is a protective cover (2); The protective cover (2) is arranged at one end of the top of the box body (1) away from the support block (3); one end of the guide rail (4) is located inside the protective cover (2).

3. The device for measuring the size of a metal round bar specimen according to claim 1, wherein: The number of the supporting blocks (3) is two.

4. The device for measuring the size of a metal round bar specimen according to claim 3, wherein: The support block (3) is C-shaped, and a slot is provided on the top thereof, and both ends of the sample to be tested (7) are respectively clamped in the slot.

5. The device for measuring the size of a metal round bar specimen according to claim 1, wherein: The mobile assembly (5) comprises a mounting seat (5-1), a connecting seat (5-2) and a mounting frame (5-3); The mounting seat (5-1) is slidably connected to the guide rail (4), the connecting seat (5-2) is fixed to the top of the mounting seat (5-1), and the mounting frame (5-3) is fixed to the top of the connecting seat (5-2) and is used to install a diameter measuring sensor (6).

6. The device for measuring the size of a metal round bar specimen according to claim 5, characterized in that: The diameter measuring sensor (6) comprises a diameter measuring sensor transmitting end (6-1) and a diameter measuring sensor receiving end (6-2); The diameter measuring sensor transmitting end (6-1) is fixed to the top of the mounting frame (5-3), and the diameter measuring sensor receiving end (6-2) is installed at the bottom of the mounting frame (5-3).

7. The device for measuring the size of a metal round bar specimen according to claim 6, characterized in that: When the size measuring device is in a working state, the diameter measuring sensor transmitting end (6-1) and the diameter measuring sensor receiving end (6-2) are respectively located on the upper and lower sides of the sample to be measured (7).

8. A measuring method applied to the size measuring device of a metal round bar sample according to any one of claims 1 to 7, characterized in that: include: Placing the sample to be tested (7) on the support block (3); The moving component (5) receives a moving signal from the control system and moves to three test points of the sample (7) in sequence; The diameter measuring sensor (6) receives a measurement signal from the control system, measures the distances to three measurement points of the sample (7) to be measured, and sends the distances to the control system; After the three test points are measured, the test sample (7) is rotated 90 degrees axially; The distances from the diameter measuring sensor (6) to the three measuring points of the sample (7) to be measured are re-measured and sent to the control system.

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