A continuous pipe wall thickness measuring device

Abstract

The invention relates to a continuous pipe wall thickness measuring device, comprising a round pipe driving device, a Hall effect thickness measuring device, a left working platform and a right working platform, wherein the Hall effect thickness measuring device is arranged between the left working platform and the right working platform; the device integrates a Hall effect tester with a test frame and a transmission component, can continuously measure the wall thickness of a tubular material, and adopts a reciprocating measurement method, wherein a rotating driving motor can complete the measurement of two round pipes of the same type in one complete stroke, thereby greatly improving the measurement efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of pipe wall thickness detection, in particular to a pipe wall continuous thickness measuring device. Background Art

[0002] The Hall Effect Thickness Gauge is a portable measuring tool based on the Hall Effect theory that can quickly and easily measure the thickness of the target object. It is used to measure the thickness of non-magnetic materials such as plastics, glass, synthetic materials, aluminum and titanium, etc. The existing Hall Effect Thickness Gauge is a handheld, portable thickness gauge that uses a magnetic field method to quickly, accurately and repeatably measure the thickness of non-ferromagnetic materials. When measuring, the magnetic field probe is placed on one side of the test material and the target small steel ball is placed on the other side. The Hall Effect sensor of the probe measures the distance between the top of the probe and the small ball to obtain a digital thickness reading. Because the existing portable measuring tools can usually only measure smaller parts in actual use, the probe or the object to be measured needs to be moved manually to complete the measurement, and a large number of continuous measurements cannot be performed. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a continuous pipe wall thickness measurement device, which realizes the continuous thickness measurement of the round pipe wall by integrating the Hall effect tester with the test frame and the transmission components, and at the same time realizes the round-trip measurement process of the round pipe, thereby effectively improving the work efficiency.

[0004] In order to solve the above technical problems, the present invention is implemented in the following manner: a continuous pipe wall thickness measuring device of the present invention comprises a round pipe driving device, a Hall effect thickness measuring device, a left working platform and a right working platform, wherein the Hall effect thickness measuring device is arranged between the left working platform and the right working platform;

[0005] The round tube driving device is connected to the upper part of the left working platform, and the round tube driving device can drive the tube to be tested to rotate and drive the tube to be tested to move back and forth horizontally;

[0006] A plurality of guide devices are evenly arranged on the upper end of the right working platform. After the tube to be measured moves laterally and passes through the Hall effect thickness measuring device for measurement, the guide devices will guide and support the tube to be measured;

[0007] The Hall effect thickness measuring device comprises a magnetic detection head, a steel ball, a clamping device and a bracket; the magnetic detection head is arranged in a vertical direction, and the bottom is fixed to the end of the cylinder piston rod, and the piston rod drives the magnetic detection head to move up and down so that it is pressed against the bottom of the outer wall of the tube to be measured; the steel ball is placed in the center hole of the tube to be measured; a bracket and a guide device are respectively arranged on both sides of the magnetic detection head, and a groove wheel for supporting the tube to be measured is arranged on the bracket and the guide device; a clamping device is arranged above the magnetic detection head, and a groove wheel is arranged at the bottom of the clamping device, and the groove wheel can be pressed against the upper end of the outer wall of the tube to be measured.

[0008] The round tube driving device comprises a rotary drive motor, a screw drive motor, a screw and a slide rail; the slide rail is fixed horizontally above the left working platform and is symmetrically arranged on both sides of the power output end of the screw drive motor; the power output end of the screw drive motor is coaxially fixedly connected to the screw, and the screw is arranged parallel to the slide rail; a motor base is arranged at the bottom of the rotary drive motor, and a slot is arranged at the bottom of the motor base, which is connected to the outer sides of the two slide rails through the slot and can move laterally along the slide rail; a driving block is fixed at the middle position of the bottom of the motor base, and the driving block is sleeved on the screw to form a transmission connection with the screw; the power output end of the rotary drive motor is fixedly connected to the chuck, and the center of the chuck is detachably fixedly connected to the tube to be tested.

[0009] The Hall effect thickness measuring device also includes a numerical display screen for displaying the measured numerical values.

[0010] The guide device comprises a fixed bracket and a groove wheel connected to the upper end of the fixed bracket and rotatable along the axis, and the center of the groove wheel is an arc-surface annular groove.

[0011] The clamping device includes a base, a guide rod connected to the base and symmetrically arranged, the guide rod is sleeved with a compression spring, and the guide rod can move up and down along the base; the lower end of the guide rod is fixedly connected to a movable bracket, and the groove wheel is connected to the bottom end of the movable bracket and can rotate along the axis.

[0012] A long strip pad is laterally fixedly connected to the upper end of the right working platform, and the guide device is evenly distributed on the top of the pad; a clamping device is arranged on the upper end of the groove wheel of the guide device, and the clamping device is fixed on a bracket connected to the right working platform.

[0013] The clamping device arranged above the magnetic detection head is connected to a transverse bracket fixed to the right working platform. A long strip-shaped adjustment groove is arranged horizontally on the transverse bracket. The clamping device can move horizontally in the adjustment groove through its base and can achieve position fixation.

[0014] A limit switch is arranged at the rightmost end of the left working platform to monitor whether the rotary drive motor moves to the limit position.

[0015] Positive effects of the present invention: The continuous pipe wall thickness measuring device described in the present invention integrates the Hall effect tester with the test frame and the transmission components, can continuously measure the wall thickness of the tubular material, and adopts a reciprocating measurement method. The rotating drive motor can complete the measurement of two round pipes of the same type in one complete stroke, which greatly improves the measurement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the structure of the Hall effect thickness measuring device;

[0019] Figure 3 It is a structural schematic diagram of a round tube driving device;

[0020] Figure 4 It is a schematic diagram of the structure of the Hall effect thickness measuring device;

[0021] Figure 5 It is a partial structural schematic diagram of the present invention.

[0022] In the figure, 1 is a rotary drive motor, 2 is a lead screw drive motor, 3 is a tube a to be tested, 4 is a left working platform, 5 is a slide rail, 6 is a Hall effect thickness measuring device, 7 is a clamping device, 8 is a numerical display screen, 9 is a guide device, 10 is a right working platform, 11 is a transverse bracket, 12 is a movable bracket, 13 is a compression spring, 14 is a groove wheel, 15 is a fixed bracket, 16 is a magnetic detection head, 17 is a bracket, 18 is a lead screw, 19 is a chuck, 20 is a drive block, 21 is a motor base, 22 is an adjustment slot, 23 is a cushion block, 24 is a tube b to be tested, 25 is a magnetic detection head lifting cylinder, and 26 is a base. DETAILED DESCRIPTION

[0023] like Figures 1 to 5 As shown, the continuous pipe wall thickness measuring device of the present invention comprises a round pipe driving device, a Hall effect thickness measuring device 6, a left working platform 4 and a right working platform 10, wherein the Hall effect thickness measuring device 6 is arranged between the left working platform 4 and the right working platform 10; the round pipe driving device is connected to the top of the left working platform 4, and the round pipe driving device can drive the pipe a3 to be measured to rotate, and drive the pipe a3 to be measured to move horizontally to the right.

[0024] The round tube driving device includes a rotary drive motor 1, a screw drive motor 2, a screw 18 and a slide rail 5; the slide rail 5 is horizontally fixed above the left working platform 4 and symmetrically arranged on both sides of the power output end of the screw drive motor 2; the power output end of the screw drive motor 2 is coaxially fixedly connected to the screw 18, and the screw 18 is arranged parallel to the slide rail 5; a motor base 21 is arranged at the bottom of the rotary drive motor 1, and a card slot is arranged at the bottom of the motor base 21, which is connected to the outer sides of the two slide rails 5 through the card slot and can move laterally along the slide rail 5; a driving block 20 is fixed at the middle position of the bottom of the motor base 21, and the driving block 20 is sleeved on the screw 18 to form a transmission connection with the screw 18; the rotary drive The power output end of the motor 1 is fixedly connected to the chuck 19, and the center of the chuck 19 is detachably fixedly connected to the tube a3 to be tested; the driving working principle of the round tube driving device is that the rotating driving motor 1 drives the tube a3 to be tested to rotate with an adjustable speed, and the screw driving motor 2 drives the screw 18 to rotate with an adjustable speed. The screw 18 rotates and drives the driving block 20 that is connected to it to move, and the moving direction will be determined according to the rotation direction of the screw driving motor 2; the motor base 21 is clamped on the slide rail 5, and the slide rail 5 supports and guides the rotating driving motor 1. The rotating driving motor 1 will move back and forth laterally on the slide rail 5, thereby realizing that it can clamp the tube a3 to be tested and drive it to rotate while also moving laterally.

[0025] A plurality of guide devices 9 are evenly distributed on the upper end of the right working platform 10. After the tube a3 to be measured moves laterally and passes through the Hall effect thickness measuring device 6 for measurement, the guide devices 9 on the right working platform 10 will guide and support the tube a3 to be measured.

[0026] The Hall effect thickness measuring device 6 includes a magnetic detection head 16, a steel ball, a clamping device 7 and a bracket 17; the magnetic detection head 16 is arranged in a vertical direction, and the bottom is fixed to the piston rod end of the magnetic detection head lifting cylinder 25, and the piston rod drives the magnetic detection head 16 to move up and down so that it is pressed against the bottom of the outer wall of the tube a3 to be measured; the steel ball is placed in the center hole of the tube a3 to be measured; the bracket 17 and the guide device 9 are respectively arranged on both sides of the magnetic detection head 16, and the bracket 17 and the guide device 9 are both provided with a groove wheel 14 for supporting the tube a3 to be measured; the clamping device 7 is arranged above the magnetic detection head 16, and the groove wheel 14 is arranged at the bottom of the clamping device 7, and the groove wheel 14 can be pressed against the upper end of the outer wall of the tube a3 to be measured.

[0027] The Hall effect thickness measuring device 6 further includes a numerical display screen 8 for displaying the measured values.

[0028] The guide device 9 includes a fixed bracket 15 and a groove wheel 14 connected to the upper end of the fixed bracket 15 and rotatable along the axis, and the center of the groove wheel 14 is an arc-surface annular groove.

[0029] The clamping device 7 includes a base 26, a guide rod symmetrically arranged on the base 26, a compression spring 13 is sleeved on the guide rod, and the guide rod can move up and down along the base; the lower end of the guide rod is fixedly connected to a movable bracket 12, and a groove wheel 14 is connected to the bottom end of the movable bracket 12 and can rotate along the axis.

[0030] The upper end of the right working platform 10 is laterally fixedly connected with a long strip of pad 23, and the guide device 9 is evenly distributed on the top of the pad 23; the upper end of the groove wheel 14 of the guide device 9 is provided with a clamping device 7, and the clamping device 7 is fixed on the bracket connected to the right working platform 10. The setting of the clamping device 7 here can be selectively set according to actual conditions, and there is no need to set a clamping device 7 on the upper end of each guide device 9.

[0031] The clamping device 7 arranged above the magnetic detection head 16 is connected to the transverse bracket 11 fixed to the right working platform 10. One or more clamping devices 7 can be arranged. A long strip-shaped adjustment groove 22 is arranged horizontally on the transverse bracket 11. The clamping device 7 can move horizontally in the adjustment groove 22 through its base 26 and can achieve position fixation. The function of the adjustment 22 is to adjust the downward pressing position of the clamping device 7 according to actual conditions, so as to cooperate with the bottom bracket 17 and the guide device 9 to achieve a stable state of the tube a3 to be measured during the measurement process without lateral displacement.

[0032] like Figure 5 As shown, a limit switch is provided at the rightmost end of the left working platform 4 to monitor whether the rotary drive motor 1 has moved to the limit position. When the rotary drive motor 1 moves to the limit position of the left working platform 4, it will touch the limit switch, so that the control system will know that the measurement of the tube a3 to be measured is completed, and then the tube b24 to be measured can be placed on the top of the guide device 9 of the right working platform 10, and the tube b24 to be measured can be moved horizontally to the left to the position of the chuck 19, and clamped by the chuck 19, and then the round tube drive device is started to move to the left, driving the tube b24 to be measured for thickness measurement.

[0033] The working principle of thickness measurement of the present invention is:

[0034] When measuring thickness, place a steel ball in the hole of the tube to be measured, press the magnetic detection head against the outer wall of the tube to be measured from the bottom, and move the tube to be measured through the round tube driving device. The steel ball in the tube to be measured will not move laterally due to the magnetic attraction of the magnetic detection head, but will only move up and down following the thickness of the tube wall. The Hall effect sensor of the magnetic detection head will measure the distance from the tip of the magnetic detection head to the steel ball, thereby calculating the thickness of the material.

[0035] The above description is only to illustrate some functional structural principles of a continuous pipe wall thickness measuring device related to the present invention. Since it is easy for technicians in the same technical field to make several modifications on this basis, this specification is not intended to limit the continuous pipe wall thickness measuring device described in the present invention to the specific structure and applicable scope shown or described. Therefore, all corresponding modifications and equivalents that may be used belong to the protection scope of the patent of the present invention.

Claims

1. A continuous pipe wall thickness measuring device, characterized in that: It includes a round tube driving device, a Hall effect thickness measuring device, a left working platform and a right working platform, wherein the Hall effect thickness measuring device is arranged between the left working platform and the right working platform; The round tube driving device is connected to the upper part of the left working platform, and the round tube driving device can drive the tube to be measured to rotate and drive the tube to be measured to move back and forth laterally; a plurality of guide devices are evenly distributed on the upper part of the right working platform, and after the tube to be measured moves laterally and is measured by the Hall effect thickness measuring device, the guide device will guide and support the tube to be measured; the Hall effect thickness measuring device includes a magnetic detection head, a steel ball, a clamping device and a bracket; the magnetic detection head is arranged in a vertical direction, and the bottom is fixed to the end of the cylinder piston rod, and the piston rod drives the magnetic detection head to move up and down so that it is pressed against the bottom of the outer wall of the tube to be measured; the steel ball is placed in the center hole of the tube to be measured; brackets and guide devices are respectively arranged on both sides of the magnetic detection head, and groove wheels for supporting the tube to be measured are arranged on the bracket and the guide device; a clamping device is arranged above the magnetic detection head, and a groove wheel is arranged at the bottom of the clamping device, and the groove wheel can be pressed against the upper end of the outer wall of the tube to be measured.

2. A continuous pipe wall thickness measuring device according to claim 1, characterized in that: The round tube driving device comprises a rotary drive motor, a screw drive motor, a screw and a slide rail; the slide rail is fixed horizontally above the left working platform and is symmetrically arranged on both sides of the power output end of the screw drive motor; the power output end of the screw drive motor is coaxially fixedly connected to the screw, and the screw is arranged parallel to the slide rail; a motor base is arranged at the bottom of the rotary drive motor, and a slot is arranged at the bottom of the motor base, which is connected to the outer sides of the two slide rails through the slot and can move laterally along the slide rail; a driving block is fixed at the middle position of the bottom of the motor base, and the driving block is sleeved on the screw to form a transmission connection with the screw; the power output end of the rotary drive motor is fixedly connected to the chuck, and the center of the chuck is detachably fixedly connected to the tube to be tested.

3. The continuous pipe wall thickness measuring device according to claim 1, characterized in that: The Hall effect thickness measuring device also includes a numerical display screen for displaying the measured numerical values.

4. The continuous pipe wall thickness measuring device according to claim 1, characterized in that: The guide device comprises a fixed bracket and a groove wheel connected to the upper end of the fixed bracket and rotatable along the axis, and the center of the groove wheel is an arc-surface annular groove.

5. The device for continuous pipe wall thickness measurement according to claim 1, characterized in that: The clamping device includes a base, a guide rod connected to the base and symmetrically arranged, the guide rod is sleeved with a compression spring, and the guide rod can move up and down along the base; the lower end of the guide rod is fixedly connected to a movable bracket, and the groove wheel is connected to the bottom end of the movable bracket and can rotate along the axis.

6. The device for continuous pipe wall thickness measurement according to claim 1, characterized in that: A long strip pad is laterally fixedly connected to the upper end of the right working platform, and the guide device is evenly distributed on the top of the pad; a clamping device is arranged on the upper end of the groove wheel of the guide device, and the clamping device is fixed on a bracket connected to the right working platform.

7. The continuous pipe wall thickness measuring device according to claim 1, characterized in that: The clamping device arranged above the magnetic detection head is connected to a transverse bracket fixed to the right working platform. A long strip-shaped adjustment groove is arranged horizontally on the transverse bracket. The clamping device can move horizontally in the adjustment groove through its base and can achieve position fixation.

8. The device for continuous pipe wall thickness measurement according to claim 2, characterized in that: A limit switch is arranged at the rightmost end of the left working platform to monitor whether the rotary drive motor moves to the limit position.

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