A copper foil thickness detection device

Abstract

This utility model discloses a copper foil thickness detection device, belonging to the field of copper foil production technology. It includes a frame, with a dial indicator vertically mounted on the upper surface of the frame. A measuring space is provided inside the frame, and the telescopic needle of the dial indicator extends into this space. A measuring surface, spherical in shape, is located below the telescopic needle within the measuring space, with the axis of the telescopic needle coinciding with the diameter of the sphere. In use, the telescopic needle extends and contacts the spherical surface. The dial of the dial indicator is rotated, and the pointer points to the zero mark. The telescopic needle is then raised, and a copper foil sheet is placed on the spherical surface. Releasing the telescopic needle causes it to move downwards and contact the copper foil sheet. The reading on the dial indicator is the thickness of the copper foil sheet. Because the measuring surface is spherical, the telescopic needle and the spherical surface make point-to-point contact, resulting in a more accurate measurement of the copper foil sheet thickness.

Description

Technical Field

[0001] This utility model relates to a thickness detection device, and more particularly to a copper foil thickness detection device. Background Technology

[0002] Currently, copper foil thickness measurement mainly employs non-contact thickness gauges and contact thickness gauges. Contact thickness gauges use a mechanical probe to contact the copper foil surface and calculate the thickness based on displacement changes. They are suitable for copper foils of various materials, with an accuracy of up to 0.1 micrometers, but require periodic calibration. The testing standard, as specified in national standard GB / T 29847-2025, stipulates that measurements should avoid a 10mm edge area, and five points should be tested and the average value calculated.

[0003] Existing contact thickness gauges typically use dial indicators. The dial indicator is fixed to the frame, with the measuring platform below it. In use, the dial indicator's telescopic needle points downwards to contact the measuring platform. Then, the dial indicator's dial is rotated until the pointer points to the zero mark. The telescopic needle is then raised, and the copper foil is placed on the measuring platform. The telescopic needle extends downwards to contact the copper foil. The dial indicator reading at this point is the thickness value of the copper foil at the test location. Five points are tested, and the average value is calculated. However, this method can lead to high accuracy at certain points because the measuring platform is flat. The copper foil needs to be in complete contact with the plane to accurately measure the thickness. But it's not easy to guarantee that every point on each surface will make contact, thus introducing measurement errors. Utility Model Content

[0004] The purpose of this invention is to provide a copper foil thickness detection device with the advantage of high measurement accuracy, which effectively solves the problem of large measurement error caused by the copper foil sheet not fitting the measurement plane when placed on a flat surface in the prior art.

[0005] The present invention adopts the following technical solution: a copper foil thickness detection device, including a frame, a dial indicator is arranged vertically on the upper end surface of the frame, a measuring space is arranged inside the frame, the telescopic needle of the dial indicator extends into the measuring space, a measuring surface is arranged below the telescopic needle in the measuring space, the measuring surface is a spherical surface, and the axis of the telescopic needle coincides with the diameter of the sphere.

[0006] Furthermore, a sphere is provided within the measurement space, the axis of the telescopic needle coincides with the diameter of the sphere, and the outer surface of the sphere is spherical.

[0007] Furthermore, the sphere has a positioning shaft radially connected to it, and a column is rotatably connected to the right end of the positioning shaft. The column is fixedly installed in the measuring space, and a locking nut is threaded to the outside of the frame at the left end of the positioning shaft.

[0008] Furthermore, the positioning shaft includes a locking shaft and a rotating shaft that is slidably connected to the locking shaft in the left-right direction. The rotating shaft is rotatably connected to the column, and a positioning hole is provided on the outer surface of the sphere in the radial direction.

[0009] Furthermore, the upper end face of the frame is rotatably connected to a lever, the left end of the lever is a U-shaped fork, the telescopic pin extends upward to the outside of the dial and a limit block is fixedly installed at the top, and the telescopic pin located above the dial is located inside the U-shaped fork of the lever.

[0010] Furthermore, the frame includes a base, and a horizontally placed U-shaped frame is fixedly mounted on the upper surface of the base, with the interior of the U-shaped frame serving as a measurement space.

[0011] Furthermore, the uprights are fixed inside the U-shaped frame, and the positioning shaft is set in the measuring space of the U-shaped frame in the left-right direction.

[0012] Furthermore, a fixing plate is fixedly installed at the left end opening of the U-shaped frame, and the left end of the locking shaft passes through an elongated hole opened in the front-back direction on the fixing plate.

[0013] Furthermore, the dial indicator is fixedly mounted on the upper surface of the U-shaped frame, and the telescopic needle of the dial indicator extends downward through the upper support leg of the U-shaped frame into the measurement space.

[0014] Furthermore, the upper end face of the U-shaped frame is fixedly provided with a support part that is fixedly provided with a dial indicator, and the upper end face of the support part is fixedly provided with a hinge column, and the lever is hinged to the top end of the hinge column.

[0015] I. This utility model, by setting up a dial indicator and a spherical measuring surface, allows for precise measurement of copper foil thickness. In use, the telescopic needle extends and contacts the spherical surface. The dial of the dial indicator is then rotated until the pointer points to zero. The telescopic needle is then raised, and a copper foil sheet is placed on the spherical surface. The needle is then released, moving downwards to contact the copper foil sheet. The reading on the dial indicator at this point indicates the thickness of the copper foil sheet. Because the measuring surface is spherical, the telescopic needle and the spherical surface are in point-to-point contact, and the point of contact is the endpoint of a certain diameter of the spherical surface. Furthermore, the axis of the telescopic needle coincides with this diameter. This precise measurement of the copper foil sheet thickness between the point of contact between the telescopic needle and the point of contact on the spherical surface achieves the goal of accurately measuring the thickness of the copper foil sheet.

[0016] II. This utility model, by setting a locking shaft, a rotating shaft, a locking nut, and a ball, allows the ball to be rotated during use, so that the positioning hole of the ball is directly above. The telescopic needle of the dial indicator moves downward to observe the error between the dial indicator and the positioning hole. This causes the locking shaft to move relative to the rotating shaft along the axis or causes the rotating shaft to rotate around the column, so that the telescopic needle can be inserted into the positioning hole. After the telescopic needle is inserted into the positioning hole, rotating the locking nut abuts against the frame to fix the position of the locking shaft, which also fixes the position of the ball, thus achieving the purpose of positioning and fixing the position of the ball. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a front view structural diagram of the present utility model; Figure 3 This is a three-dimensional structural diagram of the locking nut in this utility model; Figure 4 This is a three-dimensional structural diagram of the fixing plate in this utility model; Figure 5 This is a schematic diagram of the three-dimensional structure of the sphere in this utility model; Figure 6 In this utility model Figure 5 A magnified schematic diagram of the structure at point A in the diagram.

[0018] In the diagram, 1. Frame; 2. Dial indicator; 3. Telescopic needle; 4. Ball; 5. Positioning shaft; 6. Column; 7. Locking nut; 8. Locking shaft; 9. Rotating shaft; 10. Positioning hole; 11. Lever; 12. U-shaped shift fork; 13. Dial; 14. Limit block; 15. Base; 16. U-shaped frame; 17. Fixing plate; 18. Elongated hole; 19. Support part; 20. Hinge column. Detailed Implementation

[0019] Please see Figure 1-6 The present invention will now be described in detail with reference to the accompanying drawings and embodiments: The copper foil thickness detection device of this utility model includes a frame 1. A dial indicator 2 is vertically mounted on the upper surface of the frame 1. A measuring space is provided inside the frame 1. The telescopic needle 3 of the dial indicator 2 extends into the measuring space. A measuring surface is provided below the telescopic needle 3 in the measuring space. When the telescopic needle 3 extends and touches the measuring surface, the dial 13 of the dial indicator 2 is rotated so that the pointer of the dial indicator 2 points to the zero mark. The copper foil to be measured is placed between the measuring surface and the telescopic needle 3 to realize the measurement of the copper foil thickness. During the measurement, multiple points of the copper foil are measured. By changing the contact position between the telescopic needle 3 and the copper foil, the thickness of the copper foil at multiple points can be measured, and then the average value is taken.

[0020] In this embodiment, the measuring surface can be a plane, and the axis of the telescopic needle 3 is perpendicular to the plane. In use, firstly, the telescopic needle 3 of the dial indicator 2 extends to touch the plane, then the dial 13 of the dial indicator 2 is rotated so that the pointer of the dial indicator 2 points to the zero scale value. Then, the telescopic needle 3 is raised upward, a copper foil is placed on the measuring surface, the telescopic needle 3 is released, and the telescopic needle 3 moves downward to touch the upper surface of the copper foil. At this time, the scale value pointed to by the pointer of the dial indicator 2 is read, which is the thickness of the copper foil. By changing the position of the copper foil, multiple points of the copper foil are measured, and then the average value is taken.

[0021] In this embodiment, the measuring surface can be a sphere, and the axis of the telescopic needle 3 coincides with the diameter of the sphere. During use, the telescopic needle 3 extends and touches the spherical surface. Then, the dial 13 of the dial indicator 2 is rotated until the pointer of the dial indicator 2 points to the zero mark. The telescopic needle 3 is then raised upwards, and a copper foil sheet is placed on the spherical surface. The telescopic needle 3 is released, and it moves downwards to touch the copper foil sheet. At this point, the scale value indicated by the pointer of the dial indicator 2 is read, which is the thickness of the copper foil sheet. By changing the position of the copper foil sheet, multiple points on the copper foil sheet can be measured. The measurement is performed on the sphere, and then the average value is taken. Since the measuring surface is a sphere, each measurement can almost guarantee point-to-point contact between the telescopic needle 3 and the sphere. The point of contact between the telescopic needle 3 and the sphere is the endpoint of a certain diameter of the sphere, and the axis of the telescopic needle 3 coincides with that diameter. The measurement of the copper foil thickness between the point of the telescopic needle 3 and the point of the sphere is relatively accurate. However, if the measuring surface is a plane, the copper foil may have wrinkles, which may lead to larger measurement errors in some parts of the copper foil.

[0022] In this embodiment, a sphere 4 is set in the measurement space, and the axis of the telescopic needle 3 coincides with the diameter of the sphere 4. The outer surface of the sphere 4 is spherical. In use, the telescopic needle 3 extends and touches the spherical surface. Then, the dial 13 of the dial indicator 2 is rotated so that the pointer of the dial indicator 2 points to the zero scale value. Then, the telescopic needle 3 is raised upward, and a copper foil is placed on the spherical surface. The telescopic needle 3 is released and moves downward to touch the copper foil. At this time, the scale value pointed to by the pointer of the dial indicator 2 is read, which is the thickness of the copper foil. The position of the copper foil is changed, and multiple points of the copper foil are measured. Then, the average value is taken.

[0023] In this embodiment, a positioning shaft 5 is radially arranged inside the sphere 4 and rotatably connected to the sphere 4. A column 6 is rotatably connected to the right end of the positioning shaft 5, and the column 6 is fixedly arranged in the measuring space. The left end of the positioning shaft 5 extends to the outside of the frame 1 and is threadedly connected to a locking nut 7. The positioning shaft 5 includes a locking shaft 8 and a rotating shaft 9 slidably connected to the locking shaft 8 in the left-right direction. The rotating shaft 9 is rotatably connected to the column 6. A positioning hole 10 is radially opened on the outer surface of the sphere 4. In use, the sphere 4 is rotated so that the positioning hole 10 of the sphere 4 is directly above, and the telescopic needle 3 of the dial indicator 2 moves downward to observe the error between the dial indicator 2 and the positioning hole 10. This causes the locking shaft 8 to move relative to the rotating shaft 9 along the axis or causes the rotating shaft 9 to rotate around the column 6, so that the telescopic needle 3 can be inserted into the positioning hole 10. After the telescopic needle 3 is inserted into the positioning hole 10, the locking nut 7 is rotated to abut against the frame 1 to fix the position of the locking shaft 8, which also fixes the position of the sphere 4. At this point, the telescopic needle 3 is inserted into the positioning hole 10, indicating that the telescopic needle 3 coincides with the diameter of the ball 4. Then, the telescopic needle 3 is lifted, and the ball 4 is rotated so that the ball 4 rotates relative to the locking shaft 8, making the spherical surface of the ball 4 face the telescopic needle 3. Then, the telescopic needle 3 moves downward and touches the spherical surface. Since the position of the ball 4 has been positioned, the telescopic needle 3 coincides with the diameter of the ball 4. Therefore, the position where the bottom end of the telescopic needle 3 contacts the spherical surface is the endpoint of a certain diameter of the ball 4, and the axis of the telescopic needle 3 coincides with that diameter. At this point, a routine measurement can be performed. First, rotate the dial 13 of the dial indicator 2 so that the pointer of the dial indicator 2 points to the zero mark of the dial 13. Then, lift the telescopic needle 3 and place the copper foil on the ball 4. Then, make the telescopic needle 3 touch the copper foil downward. Read the scale value of the dial 13, which is the thickness of the copper foil at this point. By changing the position of the copper foil, the thickness of the copper foil at different positions can be measured, and then the average value is taken.

[0024] In this embodiment, a lever 11 is rotatably connected to the upper end of the frame 1. The left end of the lever 11 is a U-shaped fork 12. The telescopic needle 3 extends upward to the outside of the dial 13 and a limit block 14 is fixedly installed at its top. The telescopic needle 3 located above the dial 13 is located inside the U-shaped fork 12 of the lever 11. By pressing the right end of the lever 11, the left end of the lever 11 rotates upward. The U-shaped fork 12 of the lever 11 pushes the limit block 14 upward, causing the telescopic needle 3 to move upward. This achieves the purpose of easily lifting the telescopic needle 3 through the lever 11. The natural state of the lever 11 is that the left end falls down and contacts the dial indicator 2, which does not affect the up and down movement of the telescopic needle 3 during measurement.

[0025] In this embodiment, the frame 1 includes a base 15, and a horizontally placed U-shaped frame 16 is fixedly installed on the upper surface of the base 15. The interior of the U-shaped frame 16 is a measurement space, the column 6 is fixedly installed inside the U-shaped frame 16, and the positioning shaft 5 is installed in the measurement space of the U-shaped frame 16 in the left and right direction.

[0026] In this embodiment, a fixing plate 17 is fixedly installed at the left end opening of the U-shaped frame 16, and the left end of the locking shaft 8 passes through the elongated hole 18 opened in the front-back direction on the fixing plate 17. When the rotating shaft 9 rotates relative to the column 6, it drives the locking shaft 8 to rotate, and the locking shaft 8 moves in the elongated hole 18 of the fixing plate 17. The position of the locking shaft 8 can be fixed by screwing the locking nut 7 into contact with the fixing plate 17.

[0027] In this embodiment, the dial indicator 2 is fixedly installed on the upper end face of the U-shaped frame 16, and the telescopic needle 3 of the dial indicator 2 penetrates downward through the upper support leg of the U-shaped frame 16 into the measurement space.

[0028] In this embodiment, a support portion fixedly disposed on the upper end face of the U-shaped frame 16 and fixedly disposed on the dial indicator 2, and a hinge column 20 fixedly disposed on the upper end face of the support portion 19, and the lever 11 is hinged to the top end of the hinge column 20; pressing the right end of the lever 11 can lift the telescopic needle 3, and releasing the lever 11 can move the telescopic needle 3 downward. The lever 11 is designed to facilitate lifting the telescopic needle 3 without affecting the downward movement of the telescopic needle 3; when the lever 11 is not pressed, the lever 11 is affected by the gravity of the left end and rotates to the left, so that the U-shaped fork 12 of the lever 11 falls on the dial indicator 2, without affecting the downward movement of the telescopic needle 3.

[0029] The working principle of this utility model is as follows: During use, rotate the ball 4 so that the positioning hole 10 of the ball 4 is directly above. The telescopic needle 3 of the dial indicator 2 moves downwards. Observe the error between the dial indicator 2 and the positioning hole 10. This causes the locking shaft 8 to move relative to the rotating shaft 9 along the axis or causes the rotating shaft 9 to rotate around the column 6. The purpose is to allow the telescopic needle 3 to insert into the positioning hole 10. After the telescopic needle 3 is inserted into the positioning hole 10, rotate the locking nut 7 to contact and fix the position of the locking shaft 8 against the fixing plate 17, which also fixes the position of the ball 4. Then, lift the telescopic needle 3. Rotate the ball 4 so that it rotates relative to the locking shaft 8, making the spherical surface of the ball 4 face the telescopic needle 3. Then, the telescopic needle 3 moves downward and touches the spherical surface. First, rotate the dial 13 of the dial indicator 2 so that the pointer of the dial indicator 2 points to the zero mark of the dial 13. Then, lift the telescopic needle 3 and place the copper foil on the ball 4. Then, make the telescopic needle 3 touch the copper foil downward. Read the scale value of the dial 13, which is the thickness of the copper foil at this point. By changing the position of the copper foil, the thickness of the copper foil at different positions can be measured, and then the average value can be taken.

Claims

1. A copper foil thickness detection device characterized by comprising: Includes a frame (1), a dial indicator (2) is provided on the upper surface of the frame (1) in the vertical direction, a measuring space is provided inside the frame (1), the telescopic needle (3) of the dial indicator (2) extends into the measuring space, a measuring surface is provided below the telescopic needle (3) in the measuring space, the measuring surface is a sphere, and the axis of the telescopic needle (3) coincides with the diameter of the sphere; A sphere (4) is provided in the measurement space, the axis of the telescopic needle (3) coincides with the diameter of the sphere (4), and the outer surface of the sphere (4) is spherical. The sphere (4) is provided with a positioning shaft (5) that is rotatably connected to the sphere (4) in the radial direction. The right end of the positioning shaft (5) is rotatably connected to a column (6). The column (6) is fixedly installed in the measuring space. The left end of the positioning shaft (5) extends to the outside of the frame (1) and is threaded with a locking nut (7).

2. The copper foil thickness detection device according to claim 1, characterized by: The positioning shaft (5) includes a locking shaft (8) and a rotating shaft (9) that is slidably connected to the locking shaft (8) in the left and right direction. The rotating shaft (9) is rotatably connected to the column (6). The outer surface of the sphere (4) is provided with a positioning hole (10) in the radial direction.

3. The copper foil thickness detection apparatus according to claim 1, characterized by: The upper end of the frame (1) is rotatably connected to a lever (11), the left end of the lever (11) is a U-shaped fork (12), the telescopic needle (3) extends upward to the outside of the dial (13) and a limit block (14) is fixedly installed at the top. The telescopic needle (3) located above the dial (13) is located inside the U-shaped fork (12) of the lever (11).

4. The copper foil thickness detection device according to claim 3, characterized by: The frame (1) includes a base (15), and a horizontal U-shaped frame (16) is fixedly installed on the upper surface of the base (15). The interior of the U-shaped frame (16) is a measurement space.

5. The copper foil thickness detection device according to claim 4, characterized by: The column (6) is fixedly installed inside the U-shaped frame (16), and the positioning shaft (5) is set in the measuring space of the U-shaped frame (16) along the left and right directions.

6. The copper foil thickness detection apparatus according to claim 5, characterized by: A fixing plate (17) is fixedly installed at the left end opening of the U-shaped frame (16), and the left end of the locking shaft (8) passes through the elongated hole (18) opened in the front-back direction on the fixing plate (17).

7. The copper foil thickness detecting apparatus according to claim 4, characterized by: The dial indicator (2) is fixedly installed on the upper surface of the U-shaped frame (16), and the telescopic needle (3) of the dial indicator (2) extends downward through the upper support leg of the U-shaped frame (16) into the measurement space.

8. The copper foil thickness detecting apparatus according to claim 4, characterized by: The upper end face of the U-shaped frame (16) is fixedly provided with a support part that is fixedly provided with the dial indicator (2), and the upper end face of the support part (19) is fixedly provided with a hinge column (20). The lever (11) is hinged to the top of the hinge column (20).

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