A plate thickness detection mechanism and a steel plate thickness gauge

Abstract

The utility model discloses a kind of plate body thickness detection mechanism and steel plate thickness gauge, it is related to plate body thickness measuring technical field.Specifically including mounting bracket and two thickness measuring units, two thickness measuring units are connected in the upper and lower ends of mounting bracket, each thickness measuring unit includes instrument body and measuring part, instrument body is connected with mounting bracket;Measuring part is protruded by instrument body;The end of two opposite measuring parts is vertically leaned on the upper and lower sides of plate body respectively, and the axis of two measuring parts is deviated arrangement.The upper and lower two measuring parts are deviated arrangement, without the two measuring parts coaxially arranged constantly adjusting, improve the fault tolerance of zero line determination between two measuring parts, make entire zero line determination more simply, and deviated arrangement measuring part will not accumulate error due to relative position deviation, reduce the error deviation that can appear in debugging process, to improve the accuracy and reliability of plate body thickness measurement.

Description

Technical Field

[0001] This utility model relates to the field of plate thickness measurement technology, and in particular to a plate thickness detection mechanism and a steel plate thickness gauge. Background Technology

[0002] Steel plate thickness gauges are used to measure and record the thickness of incoming steel plates sequentially, providing sufficient basis for steel plate selection. Existing steel plate thickness gauges mainly use relatively positioned proximity sensors. Two proximity sensors are placed against the top and bottom sides of the steel plate, respectively. By measuring the contact point between the steel plate and the proximity sensor, the distance between the contact point and a preset baseline can be obtained, thus yielding the steel plate thickness value.

[0003] However, in the above scheme, during the debugging process, when the probes of the two proximity sensors are in the fully extended state, it is difficult to find the accurate position of the zero line when the two probes are on the same axis and in the fully extended state. It is necessary to continuously adjust the relative height of the two proximity sensors, which leads to a long debugging time. At the same time, the distance between the two proximity sensors is prone to deviation, which can easily increase the measurement error of the steel plate and lead to inaccurate steel plate thickness measurement.

[0004] Therefore, this application aims to solve the technical problems of proximity sensor debugging being difficult and prone to deviation in the prior art. Utility Model Content

[0005] The main purpose of this utility model is to provide a plate thickness detection mechanism and a steel plate thickness gauge, which aims to significantly reduce the debugging difficulty of proximity sensors, further reduce possible error deviations during the debugging process, and thus improve the accuracy and reliability of plate thickness measurement.

[0006] To achieve the above objectives, this utility model proposes a plate thickness detection mechanism, comprising:

[0007] Mounting rack;

[0008] Two thickness measuring units are connected to the upper and lower ends of the mounting bracket, and each thickness measuring unit includes:

[0009] The instrument body is connected to the mounting bracket;

[0010] The measuring section extends from the instrument body;

[0011] The ends of the two opposing measuring parts are respectively vertically resting against the upper and lower sides of the plate, and the axes of the two measuring parts are offset from each other.

[0012] Furthermore, the measuring unit includes a measuring rod and a measuring head, with one end of the measuring rod connected to the instrument body and the measuring head located at the other end of the measuring unit.

[0013] Furthermore, a zero-point line is provided between the two measuring heads. When the two measuring rods are in contact and fully extended, the two measuring heads pass through the zero-point line, and the distance between them in the axial direction of the measuring rods is less than or equal to 5 mm.

[0014] Furthermore, the mounting frame includes a connected frame body and two vertical plates, with the two vertical plates positioned at the upper and lower ends of the frame body, and the thickness measuring unit connected to the same side corresponding to the vertical plates.

[0015] Furthermore, it includes an outer casing, which includes at least a first housing and a second housing, wherein the first housing is connected to the vertical plate and together with the vertical plate is connected to the thickness measuring unit.

[0016] Furthermore, the first housing and / or the second housing are provided with a receiving cavity, and the thickness measuring unit is placed on the inner wall of the receiving cavity.

[0017] Furthermore, a slot is provided at the end of the first housing and / or the second housing away from the end corresponding to the measuring part.

[0018] Furthermore, the outer casing includes a third housing, which is connected to the end of the second housing facing the measuring part, and the measuring part passes through the third housing.

[0019] Furthermore, it includes a lifting unit and a telescopic unit, wherein the output end of the lifting unit is connected to the telescopic unit, and the output end of the telescopic unit is connected to the mounting frame, or the output end of the telescopic unit is connected to the lifting unit, and the output end of the lifting unit is connected to the mounting frame.

[0020] This application also discloses a steel plate thickness gauge, which is equipped with the aforementioned plate thickness detection mechanism.

[0021] The above technical solution has the following advantages:

[0022] This application sets the upper and lower measuring sections off-center, eliminating the need for continuous adjustment of the two coaxially set measuring sections. This improves the tolerance rate for determining the zero line between the two measuring sections, making the determination of the entire zero line simpler. Furthermore, the off-center measuring sections will not accumulate errors due to relative position deviations, reducing possible error deviations during debugging, thereby improving the accuracy and reliability of plate thickness measurement. Attached Figure Description

[0023] The present invention will now be described in detail with reference to specific embodiments and accompanying drawings, wherein:

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a partial structural diagram of the present invention;

[0026] Figure 3 This is a partial measurement schematic diagram of the plate body of this utility model;

[0027] Figure 4 This is a schematic diagram of the interlacing of the measuring head of this utility model.

[0028] In the diagram: 1. Cantilever frame; 2. Telescopic unit; 3. Lifting unit; 4. Mounting frame; 41. Frame body; 42. Vertical plate; 5. Outer shell; 51. First shell; 511. Groove; 512. Receiving cavity; 52. Second shell; 53. Third shell; 6. Thickness measuring unit; 61. Instrument body; 62. Measuring section; 621. Measuring rod; 622. Measuring head; W1. First measuring section; W2. Second measuring section; W3. Interlacing distance. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following specific embodiments are only used to explain this utility model and do not constitute a limitation on this utility model.

[0030] like Figure 1 and Figure 2 As shown, a plate thickness detection mechanism includes a mounting frame 4 and two thickness measuring units 6. The two thickness measuring units 6 are connected to the upper and lower ends of the mounting frame 4. Each thickness measuring unit 6 includes an instrument body 61 and a measuring part 62. The instrument body 61 is connected to the mounting frame 4; the measuring part 62 extends from the instrument body 61; the ends of the two opposing measuring parts 62 are vertically pressed against the upper and lower sides of the plate, and the axes of the two measuring parts 62 are offset. One side of the mounting frame 4 is used to mount the two thickness measuring units 6. The plate is transported from the middle of the mounting frame 4, and the measuring parts 62 of the two thickness measuring units 6 move closer to each other, so that the ends of the measuring parts 62 are close to each other until the measuring parts 62 are tightly pressed against the upper and lower sides of the plate, thus achieving the required plate thickness measurement.

[0031] Specifically, the thickness measuring unit 6 can use an independent proximity sensor. Its instrument body 61 is mounted on the upper and lower ends of the mounting bracket 4. The measuring part 62 can be driven by gas inside the instrument body 61, so that the upper and lower measuring parts 62 are close to the plate. The thickness requirement of the plate can be obtained by measuring the distance between the measuring part 62 and the zero line.

[0032] like Figure 3As shown in this application, to set the zero-point line of the two thickness measuring units 6, the two measuring parts 62 are offset, that is, the axes of the two measuring parts 62 are parallel on the same plane but not collinear. Both measuring parts 62 can penetrate the zero-point line. By offsetting the two measuring parts 62, the distances between the upper and lower surfaces of the plate and the zero-point line can be measured, denoted as the first measuring segment W1 and the second measuring segment W2. When the first measuring segment W1 and the second measuring segment W2 are added together, the thickness of the plate can be obtained. By offsetting the two measuring parts 62, this application improves the error tolerance rate of zero-point line determination between the two measuring parts 62, making the determination of the entire zero-point line simpler. It eliminates the need to constantly adjust the relative height of the two measuring parts 62 to achieve coaxial alignment. Even if there is a certain error in the measuring parts 62 during the debugging process, its impact is significantly reduced compared to the coaxial setting. Moreover, the offset measuring parts 62 will not accumulate errors due to relative position deviation. Therefore, this application not only greatly increases the debugging difficulty of the zero-point line but also significantly reduces the measurement error.

[0033] like Figure 2 and Figure 3 As shown, the measuring unit 62 includes a measuring rod 621 and a measuring head 622. One end of the measuring rod 621 is connected to the instrument body 61, and the measuring head 622 is located at the other end of the measuring unit 62. The measuring rod 621 can extend and retract relative to the instrument body 61 to achieve close contact with the surface of the plate. The extension and retraction can be gas-driven or liquid-driven. In actual products, it is preferable that the entire thickness measuring unit 6 can use different contact sensors, such as the Keyence GT2-A50 contact sensor.

[0034] like Figure 4 As shown, when the two measuring rods 621 are in full extension and in contact with each other, the two measuring heads 622 penetrate the zero line, and the distance between them along the axis of the measuring rods 621 is less than or equal to 5 mm. In this application, when the measuring part 62 is fully extended from the instrument body 61, the measuring rods 621 do not interfere, and the staggered distance W3 between the measuring heads 622 is less than or equal to 5 mm. In this scheme, it is preferable to use 5 mm as the interference amount, such as the distance between the upper measuring head 622 and the zero line being 2 mm, and the distance between the lower measuring head 622 and the zero line being 3 mm, or the distance between the upper measuring head 622 and the zero line being 2.8 mm, and the distance between the lower measuring head 622 and the zero line being 2.2 mm; it is only necessary to ensure that the zero line is in the middle or near the middle position of 5 mm.

[0035] like Figure 1 and Figure 2As shown, the mounting frame 4 includes a connected frame body 41 and two vertical plates 42. The two vertical plates 42 are located at the upper and lower ends of the frame body 41, and the thickness measuring unit 6 is connected to the same side of the corresponding vertical plate 42. The frame body 41 can be installed on different devices, and the vertical plates 42 are installed at the upper and lower ends of the frame body 41 to provide installation space for the instrument body 61 of the thickness measuring unit 6.

[0036] like Figure 1 and Figure 2 As shown, this application includes an outer casing 5, which includes at least a first casing 51 and a second casing 52. The first casing 51 is connected to the vertical plate 42 and, together with the vertical plate 42, is connected to the thickness measuring unit 6. The inner wall of the first casing 51 is flush with the corresponding vertical plate 42 to extend the height of the vertical plate 42 to accommodate the size of the thickness measuring unit 6. The second casing 52 can either cover the outside of the thickness measuring unit 6 or partially cover the outer wall of the thickness measuring unit 6.

[0037] Specifically, the first housing 51 and / or the second housing 52 are provided with a receiving cavity 512, and the thickness measuring unit 6 is placed on the inner wall of the receiving cavity 512. The left and right sides of the first housing 51 can be integrally formed with rolled edges to place the thickness measuring unit 6. The second housing 52 can also be provided with a receiving cavity 512, so that the receiving cavity 512 of the second housing 52 and the receiving cavity 512 of the first housing 51 can jointly place the thickness measuring unit 6. In addition, the first housing 51 can only form one side wall of the outer shell 5, and the thickness measuring unit 6 is placed only in the receiving cavity 512 of the second housing 52. Of course, it is also possible that only the first housing 51 forms the receiving cavity 512, and the second housing 52 serves as one side wall of the outer shell 5.

[0038] like Figure 2 As shown, a slot 511 is provided at the end of the first housing 51 and / or the second housing 52 away from the corresponding measuring part 62. The slot 511 is provided at the end of the first housing 51 or the second housing 52 to facilitate the passage of the tube by the thickness measuring unit 6.

[0039] The outer casing 5 of this application includes a third casing 53, which is connected to the end of the second casing 52 facing the corresponding measuring part 62. The measuring part 62 passes through the third casing 53, and the third casing 53 is locked and fixed to the second casing 52, thus protecting the measuring part 62. The first casing 51, the second casing 52 and the third casing 53 together form an outer casing 5 that protects the thickness measuring unit 6.

[0040] like Figure 1As shown, this application includes a lifting unit 3 and a telescopic unit 2. The output end of the lifting unit 3 is connected to the telescopic unit 2, and the output end of the telescopic unit 2 is connected to the mounting frame 4, or the output end of the telescopic unit 2 is connected to the lifting unit 3, and the output end of the lifting unit 3 is connected to the mounting frame 4. The installation of the lifting unit 3 and the telescopic unit 2 is not limited. The telescopic unit 2 can be an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder. The lifting unit 3 adopts a combination of guide rail and screw. The selection of the lifting unit 3 and the telescopic unit 2 is not unique. The above are only some examples. In addition, the lifting unit 3 or the telescopic unit 2 is also connected to a cantilever frame 1. The cantilever frame 1 can be connected to the conveyor line, so that the telescopic unit 2, the lifting unit 3, the mounting frame 4, and the thickness measuring unit 6 are assembled together on the conveyor line, so that when the plate passes through the thickness measuring unit 6, the upper and lower measuring heads 622 of the thickness measuring unit 6 are in close contact with the plate and measure it.

[0041] A steel plate thickness gauge is equipped with the aforementioned plate thickness detection mechanism. When the steel plate is transported from the conveyor line to the thickness measuring unit 6, the thickness measuring unit 6 places two measuring heads 622 against the upper and lower surfaces of the steel plate respectively, thereby adding the first measuring section W1 and the second measuring section W2 to obtain the thickness value of the steel plate. This not only facilitates debugging but also reduces measurement errors.

[0042] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A plate thickness detection mechanism, characterized in that, include: Mounting bracket (4); Two thickness measuring units (6) are connected to the upper and lower ends of the mounting bracket (4), and each thickness measuring unit (6) includes: The instrument body (61) is connected to the mounting bracket (4); The measuring part (62) extends from the instrument body (61); The ends of the two opposing measuring parts (62) are respectively vertically placed against the upper and lower sides of the plate, and the axes of the two measuring parts (62) are offset from each other.

2. The plate thickness detection mechanism as described in claim 1, characterized in that, The measuring unit (62) includes a measuring rod (621) and a measuring head (622). One end of the measuring rod (621) is connected to the instrument body (61), and the measuring head (622) is located at the other end of the measuring unit (62).

3. The plate thickness detection mechanism as described in claim 2, characterized in that, A zero-point line is provided between the two measuring heads (622). When the two measuring rods (621) are in full extension and in contact with each other, the two measuring heads (622) pass through the zero-point line and the distance between them in the axial direction of the measuring rods (621) is less than or equal to 5 mm.

4. The plate thickness detection mechanism as described in claim 1, characterized in that, The mounting frame (4) includes a connected frame (41) and two vertical plates (42). The two vertical plates (42) are placed at the upper and lower ends of the frame (41), and the thickness measuring unit (6) is connected to the same side corresponding to the vertical plate (42).

5. The plate thickness detection mechanism as described in claim 4, characterized in that, Includes an outer shell (5), which includes at least a first shell (51) and a second shell (52). The first shell (51) is connected to the vertical plate (42) and together with the vertical plate (42) is connected to the thickness measuring unit (6).

6. The plate thickness detection mechanism as described in claim 5, characterized in that, The first housing (51) and / or the second housing (52) are provided with a receiving cavity (512), and the thickness measuring unit (6) is placed on the inner wall of the receiving cavity (512).

7. The plate thickness detection mechanism as described in claim 5 or 6, characterized in that, The first housing (51) and / or the second housing (52) have a slot (511) at the end away from the corresponding measuring part (62).

8. The plate thickness detection mechanism as described in claim 5, characterized in that, The outer casing (5) includes a third casing (53) connected to one end of the second casing (52) facing the measuring part (62), the measuring part (62) penetrating the third casing (53).

9. The plate thickness detection mechanism as described in claim 1, characterized in that, It includes a lifting unit (3) and a telescopic unit (2). The output end of the lifting unit (3) is connected to the telescopic unit (2), and the output end of the telescopic unit (2) is connected to the mounting frame (4). Alternatively, the output end of the telescopic unit (2) is connected to the lifting unit (3), and the output end of the lifting unit (3) is connected to the mounting frame (4).

10. A steel plate thickness gauge, characterized in that, It is equipped with a plate thickness detection mechanism as described in any one of claims 1 to 9.

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