Copper plate thickness detection device

Abstract

A copper plate thickness detection device comprises a thickness detection unit and a lever indication mechanism, the thickness detection unit is arranged on a transverse guide rod in a sliding mode to adjust the transverse measurement position of the transverse guide rod, the thickness detection unit comprises an upper measurement block and a lower measurement block, and the upper measurement block is installed on the transverse guide rod in an up-down sliding mode through a vertical sliding sleeve. The bottom of the upper measuring block is provided with an upper measuring roller, the bottom of the lower measuring block is provided with an elastic supporting mechanism, and the top of the lower measuring block is provided with a lower measuring roller. The upper measuring roller and the lower measuring roller face each other in the vertical direction to form a floating measuring jaw; the lever indicating mechanism comprises a lever, an upper connecting rod, a lower connecting rod and a pointer type dial, floating of the thickness detection unit drives a pointer of the pointer type dial to rotate so as to judge the thickness change of the to-be-detected copper plate, and high-precision and high-efficiency dynamic detection can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a copper plate thickness detection device belongs to copper plate thickness detection technical field. BACKGROUND

[0002] In the field of copper plate processing and quality detection, thickness is one of the key indicators to measure product quality. At present, the commonly used copper plate thickness detection means in the prior art mainly includes manual caliper measurement, fixed point contact thickness gauge measurement and non-contact thickness measurement device based on ultrasonic wave or laser.

[0003] But the above measurement methods have certain defects: manual caliper measurement is low in efficiency, and is seriously dependent on the experience and skill of the operator, the measurement force is not easy to control, human error is easy to be introduced, and it is difficult to meet the needs of online and continuous detection; although the fixed point contact thickness gauge has improved accuracy, the measurement point is fixed, and it cannot quickly adapt to different widths of the plate or perform horizontal multi-point comparison detection, and the contact type measurement head has wear problem in continuous work, which may scratch the surface of the finished copper plate; the non-contact thickness measurement device is high in cost and high in environmental requirements, and is not suitable for some industrial sites. UTILITY MODEL CONTENT

[0004] In order to solve the above problems existing in the prior art, the utility model provides a copper plate thickness detection device, which can realize high-precision and high-efficiency dynamic detection, and can effectively compensate the position fluctuation caused by the vibration of the conveying system or the deformation of the plate itself during the measurement process, so as to solve the problem of insufficient stability of the measurement result.

[0005] A copper plate thickness detection device, comprising a thickness detection unit and a lever indicating mechanism, the thickness detection unit is slidably arranged on a horizontal guide rod to adjust its horizontal measurement position, the thickness detection unit comprises an upper measurement block and a lower measurement block, the upper measurement block is slidably installed on the horizontal guide rod through a vertical sliding sleeve, the bottom of the upper measurement block is provided with an upper measurement roller, the bottom of the lower measurement block is provided with an elastic support mechanism, and the top of the lower measurement block is provided with a lower measurement roller; the upper measurement roller and the lower measurement roller are opposite in the vertical direction and jointly form a floating type measurement jaw; the lever indicating mechanism comprises a lever, an upper connecting rod, a lower connecting rod and a pointer type dial, the floating of the thickness detection unit drives the pointer of the pointer type dial to rotate to judge the thickness change of the copper plate to be measured.

[0006] The first arm of the lever is hinged with the upper connecting rod, and the other end of the upper connecting rod is hinged with the upper measuring block; the second arm of the lever is hinged with the lower connecting rod, and the other end of the lower connecting rod is hinged with the lower measuring block; the rotation shaft of the lever is connected with a pointer of a pointer scale; the pointer is driven to rotate on the pointer scale by a floating belt of a thickness detection unit, and the rotation amplitude of the pointer is proportional to the thickness change of the copper plate.

[0007] The measuring gantry and the conveying roller group are further included, the measuring gantry is horizontally arranged above the conveying roller group, the conveying roller group is composed of at least two conveying rollers arranged at intervals for conveying the copper plate to be measured, and the transverse guide rod is arranged on the measuring gantry.

[0008] The elastic supporting mechanism includes a telescopic guide column, a compression spring and a base, the lower end of the telescopic guide column is fixed on the base, the upper end of the telescopic guide column is connected with the lower measuring block, and the compression spring is sleeved on the telescopic guide column.

[0009] The continuous recording module includes a recording pen, recording paper and a crank slider mechanism, the crank slider mechanism includes an eccentric wheel, a crank connecting rod and a slider, one end of the eccentric wheel is fixedly arranged on the rotation shaft of the lever, the other end of the eccentric wheel is hinged with one end of the crank connecting rod through a first pin shaft, the other end of the crank connecting rod is hinged with the slider through a second pin shaft, the recording pen is fixedly arranged on the slider, a linear guide rail is arranged on one side of the pointer scale, the slider is slidably arranged on the linear guide rail, the recording paper is connected with the conveying roller group, so that the recording paper moves at a uniform speed in the same direction as the conveying direction of the copper plate to be measured at a fixed speed ratio, and the recording pen is in contact with the surface of the recording paper.

[0010] The utility model has the advantages of the following beneficial effects:

[0011] The utility model discloses the following beneficial effects:

[0012] The utility model discloses still through cooperation pointer type dial synchronous on recording paper record the change curve of thickness, reflected the thickness fluctuation condition of whole roll or whole batch copper plate on whole processing length. The operator or quality inspector can pass through the observation curve, the thickness whether stable control is judged in the tolerance range directly. Once found that the finished product exists quality problem, can pass through the corresponding record curve of consultation, accurate positioning problem appears production time period or board material position section, realizes accurate tracing. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is whole structure schematic diagram of the utility model;

[0014] Figure 2 It is lever indicating mechanism front view of the utility model;

[0015] Figure 3 It is lever indicating mechanism side view of the utility model;

[0016] Figure 4 It is continuous record module schematic diagram of the utility model.

[0017] The figure mark is shown as follows:

[0018] 11, upper measuring block;2, horizontal guide rod;6, copper plate to be measured;12, lower measuring block;21, vertical sliding sleeve;13, upper measuring roller;14, lower measuring roller;31, lever;32, upper connecting rod;33, lower connecting rod;34, pointer type dial;35, pivot;4, measuring gantry;5, conveying roller group;51, telescopic guide column;52, compression spring;53, base;71, recording pen;72, recording paper;74, eccentric wheel;75, crank connecting rod;76, sliding block;77, linear guide rail. DETAILED DESCRIPTION

[0019] The utility model will be described in detail below in combination with the drawings and specific embodiment.

[0020] Please refer to Figures 1 to 4 , the utility model provides a technical scheme:

[0021] The copper plate thickness detection device of the embodiment comprises a thickness detection unit and a lever indicating mechanism. The thickness detection unit is slidably arranged on the transverse guide rod 2 to adjust the transverse measurement position thereof. The thickness detection unit comprises an upper measurement block 11 and a lower measurement block 12. The upper measurement block 11 is slidably arranged on the transverse guide rod 2 through a vertical sliding sleeve 21. In order to realize accurate and controllable measurement point position, the surface of the transverse guide rod 2 is preferably provided with a precision scale. The scale can be directly laser etched on the surface of the transverse guide rod 2, or a high-precision metal scale can be inlaid. The scale unit is usually millimeter, so that the operator can accurately and intuitively position the entire thickness detection unit to a specific transverse coordinate according to the width of the copper plate 6 to be measured, thereby realizing the fixed-point detection and comparative analysis of the thickness of the plate at different positions, and greatly improving the practicability of the device and the comprehensiveness of the detection data. The bottom of the upper measurement block 11 is provided with an upper measurement roller 13, the bottom of the lower measurement block 12 is provided with an elastic supporting mechanism, and the top of the lower measurement block 12 is provided with a lower measurement roller 14. The upper measurement roller 13 and the lower measurement roller 14 are vertically opposite to each other and jointly form a floating type measurement jaw.

[0022] Specifically, the upper measurement block 11 is a core transmission component with a certain mass, and its self-weight provides a constant initial measurement force for the upper measurement. A counterweight can also be arranged on the top of the upper measurement block 11. The upper measurement block 11 forms a sliding pair with the transverse guide rod 2 through the vertical sliding sleeve 21. The upper measurement roller 13 is installed on the bottom of the upper measurement block 11 through a group of high-precision needle bearings. The design of the roller enables it to contact the upper surface of the copper plate 6 to be measured with extremely low rolling friction. Its core function is to convert the linear transmission motion of the copper plate 6 to be measured into the rotational motion of the roller itself, thereby accurately transmitting the displacement signal while completely avoiding scratching or wearing the surface of the copper plate 6 to be measured. The elastic supporting mechanism is installed on the bottom of the lower measurement block 12, and its core function is to provide a continuous, stable and constant upward thrust for the entire lower measurement assembly. The force is balanced with the self-weight of the upper measurement block 11, and together determines the clamping force of the measurement jaw on the copper plate 6 to be measured.

[0023] That is, the upper measuring roller 13 and the lower measuring roller 14 are strictly opposite in the vertical direction, and constitute a floating measuring jaw. Because the upper measuring block 11 and the lower measuring block 12 are both not fixed, but can be self-adaptively adjusted according to the actual state of the measured object. When the copper plate 6 with different thickness or position enters the jaw, the upper measuring block 11 will move upward against the friction, and the lower measuring block 12 will move downward against the spring force, and the two will cooperate to automatically adjust the opening of the jaw. This two-way floating structure has a significant advantage compared to the traditional design of one end fixed and one end floating, that is, it can automatically compensate for the overall position fluctuation of the measured copper plate 6 caused by factors such as transmission roller vibration, uneven plate, or existence of slight wave edge. Only when the actual thickness of the measured copper plate 6 changes, will the opening of the jaw effectively change, thereby greatly improving the accuracy and reliability of online dynamic measurement.

[0024] In detail, if the upper measuring block 11 is fixed and only the lower measuring block 12 is moved, when the transmission roller vibration causes the overall measured copper plate 6 to lift up, the fixed upper measuring block 11 will block the measured copper plate 6, forcing the lower measuring block 12 to abnormally move down, and the device will misjudge as a dramatic increase in thickness. Conversely, if the lower measuring block 12 is fixed and only the upper measuring block 11 is moved, when the measured copper plate 6 is pressed down, it will be misjudged as a dramatic decrease in thickness. However, in this scheme, when the overall measured copper plate 6 fluctuates, the upper measuring block 11 and the lower measuring block 12 move towards each other, automatically canceling the position interference. Only when the actual thickness of the measured copper plate 6 changes, will the net distance between the two change, thereby ensuring high precision and high reliability of online detection.

[0025] The lever indicating mechanism includes a lever 31, an upper connecting rod 32, a lower connecting rod 33, and a pointer scale 34. The thickness detection unit drives the pointer of the pointer scale 34 to rotate to determine the thickness change of the measured copper plate 6. The first arm of the lever 31 is hinged to the upper connecting rod 32, and the other end of the upper connecting rod 32 is hinged to the upper measuring block 11. The second arm of the lever 31 is hinged to the lower connecting rod 33, and the other end of the lower connecting rod 33 is hinged to the lower measuring block 12. A rotating shaft 35 is fixedly inserted through the middle of the lever 31, and the rotating shaft 35 of the lever 31 is linked with the pointer of the pointer scale 34. The pointer is driven to rotate on the pointer scale 34 by the thickness detection unit, and the rotation amplitude is proportional to the thickness change of the measured copper plate 6.

[0026] Specifically, when the copper plate 6 to be measured enters the floating measurement jaw, the thickness change will be converted into the relative displacement of the upper measuring block 11 and the lower measuring block 12, that is, the sum of the rising distance of the upper measuring block 11 and the falling distance of the lower measuring block 12. When the upper measuring block 11 rises, the end of the first arm of the lever 31 is pushed by the upper connecting rod 32, generating a torque that makes the lever 31 rotate around the rotating shaft 35. At the same time, when the lower measuring block 12 falls, the end of the second arm of the lever 31 is pulled by the lower connecting rod 33, and the two torques are superimposed to drive the lever 31 to rotate around the rotating shaft 35.

[0027] The rotating shaft 35 of the lever 31 is coaxially connected with the pointer of the pointer scale 34. The rotating angle of the lever 31 is directly proportional to the thickness change of the copper plate 6 to be measured. Finally, it is manifested as a large deflection of the pointer on the pointer scale 34. The scale of the disc surface of the pointer scale 34 is pre-calibrated, and the scale value directly corresponds to the actual unit of thickness, so that the operator can directly read the absolute thickness or thickness deviation of the copper plate 6 to be measured.

[0028] It also includes a measuring gantry 4 and a conveying roller group 5, the measuring gantry 4 is transversely arranged above the conveying roller group 5; the conveying roller group 5 is composed of at least two conveying rollers arranged at intervals for conveying the copper plate 6 to be measured; the transverse guide rod 2 is installed on the measuring gantry 4; it is worth mentioning that the copper plate 6 to be measured can be moved to the floating measurement jaw in any form;

[0029] The elastic support mechanism includes a telescopic guide column 51, a compression spring 52 and a base 53; the lower end of the telescopic guide column 51 is fixed to the base 53, and the upper end of the telescopic guide column 51 is connected with the lower measuring block 12; the compression spring 52 is sleeved on the telescopic guide column 51, and the base 53 is fixedly installed on the placing surface.

[0030] The above operation can be clearly seen that only the placing position of the copper plate 6 to be measured and the thickness of the thickness detection unit need to be changed when the thickness detection unit is moved to different measurement points, and the thickness change of the copper plate 6 to be measured can also be observed in real time. When operating, the calibration operation can be performed first, the operator places a standard thickness block with known accurate thickness between the upper measuring roller 13 and the lower measuring roller 14, at this time, the lever 31 and the pointer point to a certain position on the pointer scale 34. The operator adjusts the calibration knob on the adjusting device or directly slightly adjusts the pointer to accurately adjust the pointer to point to the position on the pointer scale 34 corresponding to the standard thickness block, and then removes the standard block and sends the copper plate 6 to be measured into the measurement jaw. The device will measure the difference between the thickness of the copper plate 6 to be measured and the thickness of the previous standard block. Since the first step has been calibrated, the pointer will directly display the absolute thickness value.

[0031] Meanwhile, if a non-contact scheme such as laser is adopted, there are several problems compared with the present scheme. For example, as a high-precision sensor, the laser range finder is seriously interfered by metal dust, oil mist, water vapor and the like in the air in the industrial field of copper plate rolling or continuous processing, which leads to fluctuation or even inaccuracy of the measurement value. The pure mechanical structure of the present utility model is not affected by such factors. Meanwhile, the surface of the copper plate 6 to be measured is not an ideal optical mirror surface. It may be oxidized, stained with oil, slightly scratched or have different roughness, which will interfere with the laser reflection signal and introduce measurement error. The mechanical roller measures the physical thickness, which is independent of the surface optical properties, and the result is more reliable.

[0032] Preferably, as Figure 4 The continuous recording module further comprises a recording pen 71, a recording paper 72 and a crank slider mechanism. The crank slider mechanism comprises an eccentric wheel 74, a crank connecting rod 75 and a slider 76. One end of the eccentric wheel 74 is fixedly installed on the rotating shaft 35 of the lever 31. The other end of the eccentric wheel 74 is hingedly connected to one end of the crank connecting rod 75 through a first pin shaft. The other end of the crank connecting rod 75 is hingedly connected to the slider 76 through a second pin shaft. The recording pen 71 is fixedly installed on the slider 76. A linear guide rail 77 is arranged on one side of the pointer scale disc 34, and the slider 76 is slidably arranged on the linear guide rail 77. The recording paper 72 is connected with the conveying roller set 5, so that the recording paper 72 moves at a uniform speed in a direction same as the conveying direction of the copper plate 6 to be measured and at a fixed proportion of the speed. The tip of the recording pen 71 is in contact with the surface of the recording paper 72.

[0033] Specifically, the connection between the recording paper 72 and the conveying roller set 5 can be achieved by any existing structure, as long as the recording paper 72 can move smoothly with the conveying roller set 5.

[0034] When the thickness of the copper plate 6 to be measured on the production line changes, the change is first captured by the floating measuring jaw of the thickness detection unit, and is output as a corresponding rotation angle through the rotating shaft 35 of the lever 31. The rotation drives the eccentric wheel 74 to rotate, and the eccentric wheel 74 drives the slider 76 to slide horizontally on the linear guide rail 77 through the crank connecting rod 75, thereby driving the recording pen 71 to move synchronously. The horizontal position of the tip of the recording pen 71 accurately corresponds to the instantaneous thickness value of the copper plate 6 to be measured. At the same time, the recording paper 72 moves at a uniform speed in a direction same as the conveying direction of the copper plate 6 to be measured under the driving of the conveying roller set 5, and the moving speed is in a fixed proportion of the conveying speed of the copper plate 6 to be measured, thereby constructing a basic coordinate in the longitudinal direction which is proportional to time or length. The continuous track of the ink trace of the recording pen 71 on the moving recording paper 72 is a thickness change curve with the horizontal direction as the thickness coordinate and the longitudinal direction as the time / length coordinate.

[0035] The curve on the recording paper 72 fully reflects the thickness fluctuation of the whole roll or batch of copper plates 6 along the whole processing length. The operator or quality inspector can visually judge whether the thickness is stably controlled within the tolerance range by observing the curve. Once the quality problem of the finished product is found, the corresponding recording curve can be consulted to accurately locate the production period or plate position section where the problem occurs, and accurate traceability is achieved.

[0036] At the same time, the periodic fluctuation, trend drift or abnormal peak in the thickness change curve is often a direct reflection of improper process parameters or abnormal equipment state. This continuous record provides indispensable data basis for engineers to analyze process defects and diagnose equipment failures.

[0037] The above-described embodiments only express the specific implementation of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of protection of the present application.

Claims

1. A copper plate thickness detection device, characterized by: The application relates to a copper plate thickness detection device, which comprises a transverse guide rod (2), a thickness detection unit and a lever indicating mechanism, wherein the thickness detection unit comprises an upper measuring block (11) and a lower measuring block (12), the upper measuring block (11) is vertically slidably installed on the transverse guide rod (2) through a vertical sliding sleeve (21), the bottom of the upper measuring block (11) is provided with an upper measuring roller (13), the bottom of the lower measuring block (12) is provided with an elastic supporting mechanism, and the top of the lower measuring block (12) is provided with a lower measuring roller (14); the upper measuring roller (13) and the lower measuring roller (14) are vertically opposite to each other; the lever indicating mechanism comprises a lever (31), an upper connecting rod (32), a lower connecting rod (33) and a pointer scale (34), the two ends of the lever (31) are respectively hinged to the upper measuring block (11) and the lower measuring block (12) through the upper connecting rod (32) and the lower connecting rod (33), and the lever (31) is coaxially arranged with the pointer scale (34), and the floating of the thickness detection unit drives the rotation of a pointer of the pointer scale (34) to judge the thickness change of a copper plate (6) to be detected.

2. The copper plate thickness detection device of claim 1, wherein: A rotating shaft (35) is fixedly inserted into the middle of the lever (31), the rotating shaft (35) is fixedly connected with the pointer of the pointer scale (34), and the pointer is rotated on the pointer scale (34) through the floating of the thickness detection unit, and the rotation amplitude of the pointer is directly proportional to the thickness change of the copper plate (6) to be detected.

3. A copper plate thickness detection device as claimed in claim 2, characterized in that: The application further comprises a measuring gantry (4) and a conveying roller group (5), the measuring gantry (4) is located above the conveying roller group (5), the conveying roller group (5) is composed of at least two conveying rollers which are arranged at intervals and used for conveying the copper plate (6) to be detected, and the transverse guide rod (2) is installed on the measuring gantry (4).

4. The copper plate thickness detection device of claim 1, wherein: The elastic supporting mechanism comprises a telescopic guide column (51), a compression spring (52) and a base (53), the lower end of the telescopic guide column (51) is fixed on the base (53), the upper end of the telescopic guide column (51) is connected with the lower measuring block (12), the compression spring (52) is sleeved on the telescopic guide column (51), and the base (53) is fixedly installed on a placing surface.

5. A copper sheet thickness detecting device as claimed in claim 3, characterized in that: The continuous recording module comprises a recording pen (71), a recording paper (72) and a crank slider mechanism; the crank slider mechanism comprises an eccentric wheel (74), a crank connecting rod (75) and a slider (76); one end of the eccentric wheel (74) is fixedly installed on the rotating shaft (35); the other end of the eccentric wheel (74) is hingedly connected with one end of the crank connecting rod (75); the other end of the crank connecting rod (75) is hingedly connected with the slider (76); the recording pen (71) is fixedly installed on the slider (76); a linear guide rail (77) is arranged on one side of the pointer scale dial (34); the slider (76) is slidably arranged on the linear guide rail (77); the recording paper (72) is connected with the conveying roller set (5), so that the recording paper (72) is uniformly moved in the same direction as the conveying direction of the copper plate (6) to be detected at a fixed proportion of the speed, and the pen point of the recording pen (71) is in contact with the surface of the recording paper (72).

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