A magnetic core column detection device

Abstract

The present invention belongs to the field of dimension measurement technology, and in particular, relates to a magnetic core center column detection device, including a base, a U-shaped support plate fixedly mounted on the upper end of the base, and also including: a centering clamping mechanism, a length synchronization detection mechanism, an outer diameter automatic measurement mechanism, an external dust cleaning treatment mechanism, an error range control mechanism, a dirt presence prompting mechanism, an error position marking mechanism, and an error range confirmation mechanism. The present invention can automatically and quickly detect whether the outer diameter of the magnetic core center column meets the standard range, effectively improving the detection quality and efficiency, and can also automatically control the detection error range based on the outer diameter size of the magnetic core center column being detected. The larger the outer diameter of the magnetic core center column, the larger the allowable error range. Under the premise of ensuring that the relative error is satisfied, it is avoided that the staff fails to adjust the absolute error detection range based on the relative error in time, which will cause a large number of products to become scrap due to the size not meeting the requirements.

Description

Technical Field

[0001] The invention belongs to the technical field of dimension measurement, and in particular relates to a magnetic core center column detection device. Background Art

[0002] The core column refers to the central part of the core. In many common core shapes such as EE type and EI type structures, the columnar part in the middle is the core column. It is a key component of the magnetic circuit and plays a core role in processes such as electromagnetic induction. The core column is like a "highway" that guides the magnetic flux to pass through. In devices such as transformers and inductors, when the coil is wound around the core and current is passed through, a magnetic field is generated. The core column can constrain and guide the magnetic flux to propagate along its path, thereby improving the efficiency of the magnetic circuit.

[0003] The outer diameter of the core column is a key dimensional parameter. During the manufacturing process, precise dimensions can ensure the performance consistency of the core. For example, in transformer manufacturing, the size of the core column directly affects the distribution of magnetic flux and inductance. If the outer diameter does not meet the design requirements, it will lead to inaccurate voltage conversion ratio of the transformer, reduced efficiency or electromagnetic interference. At present, the outer diameter detection of the core column is mostly carried out by staff through random inspection of the core column, and then the outer diameter of the core column is measured with a measuring device such as a micrometer. The manual measurement method is obviously inefficient and prone to manual errors. When measuring core columns of different outer diameters, it is necessary to compare with different standard data ranges, which is very cumbersome and inconvenient, affecting the measurement quality and efficiency of the core column. In the process, there is an allowable error range. In the measurement, the relative error can better reflect the accuracy of the measurement and the impact on the practical application than the absolute error. Therefore, when the outer diameter standard size of the magnetic core column is different due to different models, it is necessary to adjust the absolute error range based on the allowable relative error range. Otherwise, when the outer diameter of the magnetic core column is very large, the outer diameter of the magnetic core column is judged based on the absolute error value in a smaller range. A large number of products will become scrap due to the size not meeting the requirements, which will increase the material cost because more raw materials are wasted. At the same time, the costs of manpower, equipment and energy in the processing process will also be wasted due to the increase in scraps, which will increase the production cost of each qualified product. At present, manual inspection alone can easily cause the problem of missed conversion, affecting the measurement results. Summary of the invention

[0004] The object of the present invention is to provide a magnetic core center column detection device in view of the above problems.

[0005] To achieve the above object, the present invention adopts the following technical solution: a magnetic core center column detection device, comprising a base, a U-shaped support plate is fixedly mounted on the upper end of the base, and further comprising:

[0006] A centering clamping mechanism is installed between the base and the U-shaped support plate;

[0007] A length synchronization detection mechanism, fixedly mounted on the upper end of the U-shaped support plate and transmission-connected to the centering clamping mechanism;

[0008] The outer diameter automatic measuring mechanism is fixedly installed between the base and the U-shaped supporting plate;

[0009] A surface cleaning mechanism is installed on the automatic outer diameter measuring mechanism and the U-shaped support plate;

[0010] An error range control mechanism is installed on the outer diameter automatic measuring mechanism;

[0011] A dirt presence prompting mechanism is arranged between the error range regulating mechanism and the outer diameter automatic measuring mechanism;

[0012] An error position marking mechanism is installed on the U-shaped support plate, the automatic outer diameter measuring mechanism and the surface cleaning mechanism, and is connected to the surface cleaning mechanism;

[0013] An error range confirmation mechanism is fixedly mounted on the outer wall of the U-shaped support plate and is electrically connected to the error range control mechanism;

[0014] The PLC controller is fixedly mounted on the outer wall of the U-shaped support plate and is respectively electrically connected to the centering clamping mechanism, the automatic outer diameter measuring mechanism, the surface cleaning mechanism, the error range regulating mechanism, the dirt presence prompting mechanism, the error position marking mechanism and the error range confirmation mechanism.

[0015] In the above-mentioned magnetic core center column detection device, the centering clamping mechanism includes a support shaft rotatably sleeved on the base, the upper end of the support shaft is fixedly connected to a supporting block, the lower end of the base is fixedly provided with a motor rotating assembly for driving the support shaft to rotate, the upper end of the U-shaped support plate is fixedly provided with an electric push rod, and the lower end output end of the electric push rod is rotatably connected to a crimping block.

[0016] In the above-mentioned magnetic core center column detection device, the length synchronization detection mechanism includes a length detection shell fixedly installed on the upper end of the U-shaped support plate, the inner wall of the length detection shell is rotatably connected with a transmission screw, one end of the transmission screw penetrates and extends out of the length detection shell, and is fixedly connected with a transmission gear, the outer wall of the lower output end of the electric push rod is fixedly connected with a transmission rack, the transmission rack and the transmission gear are meshingly connected, the rod wall of the transmission screw is threadedly sleeved with a transmission seat, the upper end of the transmission seat is fixedly connected with a pointer, the upper end of the pointer passes through the upper end of the length detection shell through a strip opening opened at the upper end of the length detection shell, and the upper end of the length detection shell is also fixedly connected with a length scale located on the rear side of the pointer.

[0017] In the above-mentioned magnetic core center column detection device, the automatic outer diameter measuring mechanism includes an electric slide rail fixedly installed between a base and a U-shaped support plate, the electric slide rail is vertically arranged, the front end of the slider in the electric slide rail is fixedly connected to a linear motor, the movable end of the linear motor is fixedly connected to an extension plate of an L-shaped structure, the lower side of the extension plate is connected to a measuring shell, a socket is provided on one side of the measuring shell, and a dynamic rod is movably inserted in the corresponding socket, the end of the dynamic rod located outside the measuring shell is fixedly connected to a detection ball, the end of the dynamic rod located inside the measuring shell is fixedly connected to a moving plate, and the opposite side of the moving plate and the measuring shell is fixedly connected to a compensation spring sleeved outside the dynamic rod.

[0018] In the above-mentioned magnetic core center column detection device, the surface cleaning processing mechanism includes a blowing pipe fixedly inserted on the extension plate, the lower end of the blowing pipe is fixedly connected to a blowing head, the blowing head is located on the lower side of the measuring shell, an air pump is installed on the blowing pipe, the air pump is fixedly installed on the upper end of the U-shaped support plate, the blowing pipe is provided with a telescopic corrugated section, and the blowing pipe is provided with a solenoid valve.

[0019] In the above-mentioned magnetic core center column detection device, the error range control mechanism includes a control shell fixedly mounted on the upper end of the measuring shell, the inner wall of the control shell is rotatably connected to a bidirectional screw, the outer wall of the control shell is fixedly mounted with a servo motor for driving the bidirectional screw to rotate, the rod wall of the bidirectional screw is symmetrically threaded with two side plates, the lower ends of the two side plates are both extended into the measuring shell through a rectangular opening opened at the upper end of the measuring shell, and are symmetrically arranged about a movable plate, and a pressure sensor is fixedly connected to the side of the side plate close to the movable plate.

[0020] In the above-mentioned magnetic core center column detection device, the dirt presence prompt mechanism includes two guide slide rods symmetrically fixedly connected to the upper end of the regulating shell, the upper end of the guide slide rod passes through the upper end of the extension plate, and two squeezing springs mounted outside the guide slide rod are fixedly connected between the extension plate and the regulating shell, and the lower end of the extension plate is fixedly provided with a prompt switch arranged corresponding to the position of the regulating shell.

[0021] In the above-mentioned magnetic core center column detection device, the error position marking mechanism includes a branch pipe fixedly connected to the blowing pipe, the end of the branch pipe away from the blowing pipe is fixedly connected to a small diameter wind head, the small diameter wind head is fixedly mounted on the outer wall of the linear motor, an electromagnetic valve is installed on the branch pipe, a telescopic corrugated section is provided on the branch pipe, a plurality of marking rods are equidistantly and movably inserted on the side wall of the vertical part of the U-shaped support plate, and the end of the marking rod close to the small diameter wind head is fixedly connected to a force plate.

[0022] In the above-mentioned magnetic core center column detection device, the error range confirmation mechanism includes a confirmation shell, the inner wall of the confirmation shell is symmetrically rotatably connected with two first driving screws and second driving screws arranged parallel to each other, the outer wall of the confirmation shell is fixedly provided with a first driving motor and a second driving motor for respectively driving the first driving screw and the second driving screw to rotate, the rod wall of the first driving screw is threadedly sleeved with a lifting plate, the upper end of the lifting plate is fixedly provided with a confirmation switch, the rod wall of the second driving screw is threadedly sleeved with a pressing plate, and the pressing plate is located on the upper side of the confirmation switch.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. Through the centering clamping mechanism and the synchronous length detection mechanism, the core column to be detected can be quickly and firmly fixed. When the core column is fixed, the length of the core column can be quickly detected and displayed intuitively, which reduces the step of separately detecting the length of the core column and effectively improves the detection efficiency of the core column.

[0025] 2. Through the set outer diameter automatic measuring mechanism, error range control mechanism, error range confirmation mechanism, and error position marking mechanism, it is possible to automatically and quickly detect whether the outer diameter of the core column meets the standard range, effectively improve the detection quality and efficiency, and avoid using the traditional micrometer to measure the outer diameter of the core column. When the detection point of the micrometer is in a state where one side is convex and the other side is concave, although the outer diameter value meets the standard range, there is a quality error problem in the core column, thereby ensuring the accuracy of the outer diameter detection of the core column. At the same time, the error range of the detection can be automatically adjusted based on the outer diameter size of the detected core column. The larger the outer diameter of the core column, the larger the allowable error range. Under the premise of ensuring that the relative error is met, it is avoided that the staff fails to adjust the detection range of the absolute error based on the relative error in time, which will cause a large number of products to become scrap due to size not meeting the requirements, resulting in a waste of production costs.

[0026] 3. By setting up the dirt presence prompt mechanism and the error position marking mechanism, it is possible to simultaneously detect whether there is dirt on the outer surface of the core column during the outer diameter detection of the core column, thereby avoiding the problem that the presence of dirt affects the measurement result of the outer diameter of the core column.

[0027] 4. Through the set surface cleaning mechanism and error position marking mechanism, the position to be detected on the surface of the core center column can be automatically cleaned during the measurement of the outer diameter of the core center column, so as to avoid the problem that the presence of dust particles affects the measurement accuracy. In addition, based on this cleaning power, when the measurement result of the core center column is detected to be unqualified, the error position can be automatically marked. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0029] Figure 2 It is a front view structural schematic diagram of the present invention;

[0030] Figure 3 It is a cross-sectional structural schematic diagram of the length synchronization detection mechanism of the present invention;

[0031] Figure 4 yes Figure 2 The middle part is an enlarged structural diagram;

[0032] Figure 5 It is a cross-sectional structural schematic diagram of the error range regulating mechanism and the dirt existence prompting mechanism of the present invention;

[0033] Figure 6 It is a three-dimensional cross-sectional structural schematic diagram of the difference range confirmation mechanism of the present invention.

[0034] In the figure: 1 base, 2 centering clamping mechanism, 21 support shaft, 22 bearing block, 23 motor rotating assembly, 24 electric push rod, 25 crimping block, 3 length synchronization detection mechanism, 31 length detection shell, 32 transmission screw, 33 transmission gear, 34 transmission rack, 35 transmission seat, 36 pointer, 37 length scale, 4 outer diameter automatic measuring mechanism, 41 electric slide rail, 42 linear motor, 43 extension plate, 44 measuring shell, 45 dynamic rod, 46 detection ball, 47 moving plate, 48 compensation spring, 5 surface cleaning treatment mechanism, 51 blowing pipe, 52 blowing head, 53 air pump, 6 Error range control mechanism, 61 control shell, 62 bidirectional screw, 63 servo motor, 64 side plate, 65 pressure sensor, 7 dirt presence prompt mechanism, 71 guide slide bar, 72 push spring, 73 prompt switch, 8 error position marking mechanism, 81 branch pipe, 82 small diameter wind head, 83 marking rod, 84 force plate, 9 error range confirmation mechanism, 91 confirmation shell, 92 first drive screw, 93 second drive screw, 94 first drive motor, 95 second drive motor, 96 lifting plate, 97 confirmation switch, 98 pressing plate, 10 U-shaped support plate, 11 PLC controller. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] like Figure 1-Figure 6 As shown, a magnetic core center column detection device includes a base 1, a U-shaped support plate 10 is fixedly mounted on the upper end of the base 1, and further includes:

[0037] A centering clamping mechanism 2 is installed between the base 1 and the U-shaped support plate 10. The centering clamping mechanism 2 includes a support shaft 21 rotatably sleeved on the base 1. The upper end of the support shaft 21 is fixedly connected to a supporting block 22. A motor rotating assembly 23 for driving the support shaft 21 to rotate is fixedly installed at the lower end of the base 1. An electric push rod 24 is fixedly installed at the upper end of the U-shaped support plate 10. The lower end output end of the electric push rod 24 is rotatably connected to a crimping block 25, which can quickly and firmly fix the center column of the magnetic core to be tested.

[0038] The length synchronization detection mechanism 3 is fixedly mounted on the upper end of the U-shaped support plate 10 and is transmission-connected to the centering clamping mechanism 2. The length synchronization detection mechanism 3 includes a length detection shell 31 fixedly mounted on the upper end of the U-shaped support plate 10. The inner wall of the length detection shell 31 is rotationally connected with a transmission screw 32. One end of the transmission screw 32 extends through the length detection shell 31 and is fixedly connected with a transmission gear 33. The outer wall of the lower output end of the electric push rod 24 is fixedly connected with a transmission rack 34. The transmission rack 34 and the transmission gear 33 are meshed and connected. The rod wall of the movable screw rod 32 is threadedly sleeved with a transmission seat 35, and the upper end of the transmission seat 35 is fixedly connected with a pointer 36. The upper end of the pointer 36 passes through the upper end of the length detection shell 31 through a strip opening opened at the upper end of the length detection shell 31. The upper end of the length detection shell 31 is also fixedly connected with a length scale 37 located on the rear side of the pointer 36. When the core center column is fixed, the length of the core center column is synchronously and rapidly detected and intuitively displayed, thereby reducing a step of separately detecting the length of the core center column and effectively improving the detection efficiency of the core center column.

[0039] The automatic outer diameter measuring mechanism 4 is fixedly installed between the base 1 and the U-shaped support plate 10. The automatic outer diameter measuring mechanism 4 includes an electric slide rail 41 fixedly installed between the base 1 and the U-shaped support plate 10. The electric slide rail 41 is vertically arranged. The front end of the slider in the electric slide rail 41 is fixedly connected to a linear motor 42. The moving end of the linear motor 42 is fixedly connected to an extension plate 43 of an L-shaped structure. The lower side of the extension plate 43 is connected to a measuring shell 44. A socket is provided on one side of the measuring shell 44, and a dynamic rod 45 is movablely inserted in the corresponding socket. The end of the dynamic rod 45 located outside the measuring shell 44 is fixedly connected to a detection ball 46, and the end of the dynamic rod 45 located inside the measuring shell 44 is fixedly connected to a moving plate 47. The moving plate 47 and the measuring shell 44 are fixedly connected on the opposite side with a compensation spring 48 sleeved on the outside of the dynamic rod 45. Comprehensive detection of the core center column can be performed, which effectively improves the detection efficiency and makes the detection more detailed.

[0040] The surface cleaning mechanism 5 is installed on the automatic outer diameter measuring mechanism 4 and the U-shaped support plate 10. The surface cleaning mechanism 5 includes a blowing pipe 51 fixedly inserted on the extension plate 43. The lower end of the blowing pipe 51 is fixedly connected to a blowing head 52. The blowing head 52 is located on the lower side of the measuring shell 44. An air pump 53 is installed on the blowing pipe 51. The air pump 53 is fixedly installed on the upper end of the U-shaped support plate 10. The blowing pipe 51 is provided with a telescopic corrugated section. The blowing pipe 51 is provided with a solenoid valve. During the measurement of the outer diameter of the core center column, the position to be detected on the surface of the core center column can be automatically cleaned to avoid the problem that the presence of dust particles affects the measurement accuracy.

[0041] The error range regulating mechanism 6 is installed on the automatic outer diameter measuring mechanism 4. The error range regulating mechanism 6 includes a regulating shell 61 fixedly installed on the upper end of the measuring shell 44. The inner wall of the regulating shell 61 is rotatably connected with a bidirectional screw 62. The outer wall of the regulating shell 61 is fixedly provided with a servo motor 63 for driving the bidirectional screw 62 to rotate. The rod wall of the bidirectional screw 62 is symmetrically threaded with two side plates 64. The lower ends of the two side plates 64 are both inserted into the measuring shell 44 through the rectangular opening opened at the upper end of the measuring shell 44, and are symmetrically arranged about the movable plate 47. A pressure sensor 65 is fixedly connected to the side of the side plate 64 close to the movable plate 47. The error range of the detection can be automatically regulated based on the outer diameter of the middle column of the magnetic core being detected. The larger the outer diameter of the middle column of the magnetic core, the larger the allowable error range. On the premise of ensuring that the relative error is met, it is avoided that the staff fails to adjust the detection range of the absolute error based on the relative error in time, which will cause a large number of products to become scrap due to size not meeting the requirements, resulting in a waste of production costs.

[0042] The dirt presence prompting mechanism 7 is installed between the error range control mechanism 6 and the outer diameter automatic measuring mechanism 4. The dirt presence prompting mechanism 7 includes two guide slide bars 71 symmetrically fixedly connected to the upper end of the control shell 61. The upper end of the guide slide bar 71 passes through the upper end of the extension plate 43. Two squeezing springs 72 arranged outside the guide slide bar 71 are fixedly connected between the extension plate 43 and the control shell 61. The lower end of the extension plate 43 is fixedly provided with a prompting switch 73 arranged corresponding to the position of the control shell 61. During the process of detecting the outer diameter of the core middle column, whether there is dirt on the outer surface of the core middle column can also be detected simultaneously, so as to avoid the problem that the presence of dirt affects the measurement result of the outer diameter of the core middle column.

[0043] The error position marking mechanism 8 is installed on the U-shaped support plate 10, the automatic outer diameter measuring mechanism 4 and the surface cleaning processing mechanism 5, and is connected to the surface cleaning processing mechanism 5. The error position marking mechanism 8 includes a branch pipe 81 fixedly connected to the blowing pipe 51, and the end of the branch pipe 81 away from the blowing pipe 51 is fixedly connected to a small diameter wind head 82, and the small diameter wind head 82 is fixedly installed on the outer wall of the linear motor 42. An electromagnetic valve is installed on the branch pipe 81, and a telescopic corrugated section is provided on the branch pipe 81. The side wall of the vertical part of the U-shaped support plate 10 is equidistantly and movably sleeved with multiple marking rods 83, and the end of the marking rod 83 close to the small diameter wind head 82 is fixedly connected to a force plate 84.

[0044] The error range confirmation mechanism 9 is fixedly mounted on the outer wall of the U-shaped support plate 10 and is electrically connected to the error range control mechanism 6. The error range confirmation mechanism 9 includes a confirmation shell 91. The inner wall of the confirmation shell 91 is symmetrically rotatably connected with two first drive screws 92 and second drive screws 93 arranged parallel to each other. The outer wall of the confirmation shell 91 is fixedly mounted with a first drive motor 94 and a second drive motor 95 for respectively driving the first drive screw 92 and the second drive screw 93 to rotate. A lifting plate 96 is threadedly sleeved on the rod wall of the first drive screw 92, and a confirmation switch 97 is fixedly mounted on the upper end of the lifting plate 96. A pressing plate 98 is threadedly sleeved on the rod wall of the second drive screw 93, and the pressing plate 98 is located on the upper side of the confirmation switch 97.

[0045] The PLC controller 11 is fixedly mounted on the outer wall of the U-shaped support plate 10, and is electrically connected to the centering clamping mechanism 2, the automatic outer diameter measuring mechanism 4, the surface cleaning mechanism 5, the error range regulating mechanism 6, the dirt presence prompting mechanism 7, the error position marking mechanism 8 and the error range confirming mechanism 9 respectively.

[0046] The operating principle of the present invention is described as follows: select the core column to be tested, first manually test the roundness and outer diameter of the end of the core column to confirm whether it is within the standard range, place the core column that meets the standard on the support block 22, and use the center alignment device to make the center of the core column coincide with the center of the support block 22 [the center alignment device here is a synchronous clamping mechanism with a consistent multi-directional feed amount. Since the roundness and outer diameter of the end of the core column are confirmed, the center of the core column can be made to coincide with the center of the alignment device through multi-directional synchronous clamping, and the center alignment device is made to coincide with the center of the alignment device at the beginning. The center of the circle of the electric push rod 24 is kept coincident with the center of the circle of the supporting block 22, so that the core center column can be quickly and accurately positioned and installed. The PLC controller 11 then controls the electric push rod 24 to push the crimping block 25 downward to crimp and fix the top of the core center column until the electric push rod 24 can no longer push the crimping block 25 downward, and the load level of the electric push rod 24 reaches a preset threshold value. The corresponding output end of the electric push rod 24 is equipped with a pressure monitoring board, which can monitor the feedback load level in real time. At this time, the PLC controller 11 controls the electric push rod 24 to stop moving and self-lock, so as to quickly align the core center column with the center of the circle and fix it.

[0047] When the electric push rod 24 pushes the crimping block 25 downward, it will drive the transmission rack 34 to move downward synchronously, and the meshing action of the transmission rack 34 and the transmission gear 33 will drive the transmission screw 32 to rotate synchronously, and then the threaded sleeve action of the transmission screw 32 and the transmission seat 35 will make the transmission seat 35 drive the pointer 36 to move relative to the length scale 37. The marked position of the length scale 37 corresponding to the position where the pointer 36 finally moves is the length value of the core center column. Specifically, when the length of the core center column is longer, the electric push rod 24 can move a shorter distance, thereby making the movement distance of the transmission seat 35 shorter. Conversely, when the length of the core center column is shorter, the electric push rod 24 can move a longer distance, thereby making the movement distance of the transmission seat 35 longer. Then, based on the different lengths of the core center column, the movement distance of the pointer 36 is different, thereby confirming the length value of the core center column.

[0048] During the movement of the electric push rod 24, the PLC controller 11 synchronously controls the electric slide rail 41 to move synchronously until the electric push rod 24 stops moving, and the electric slide rail 41 also stops moving, so that before the detection of the core center column, the detection ball 46 is always located on one side of the end of the core center column. When the detection officially starts, the PLC controller 11 controls the linear motor 42 to push the extension plate 43 and the measuring shell 44 to move toward the core center column until the detection ball 46 hits the outside of the core center column, and the pressure values ​​of the moving plate 47 on the pressure sensors 65 on both sides are equal [because of the pulling effect of the compensation spring 48 on the moving plate 47, when the detection ball 46 hits the core center column Before the middle column, the movable plate 47 will always exert an extrusion force on the pressure sensor 65 on the right side, and when the detection ball 46 contacts the middle column of the magnetic core, as the measuring shell 44 continues to move toward the middle column of the magnetic core, the support force of the middle column of the magnetic core on the detection ball 46 will balance the elastic force of the compensation spring 48, thereby making the pressure sensors 65 on both sides of the movable plate 47 have the same extrusion pressure value from the movable plate 47, indicating that even if the two pressure sensors 65 move outwards away from the limit of the movable plate 47, the movable plate 47 will not be moved, ensuring that the detection ball 46 enters the detection position. The PLC controller 11 controls the linear motor 42 to stop, indicating that the detection ball 46 enters the detection position;

[0049] When the linear motor 42 drives the detection ball 46 to move to the working position, the PLC controller 11 synchronously controls the first drive motor 94 to move, and the first drive motor 94 drives the first drive screw 92 to rotate, and the lifting plate 96 is driven to move up through the threaded sleeve effect of the first drive screw 92 and the lifting plate 96, so that the confirmation switch 97 moves toward the pressing plate 98 until the linear motor 42 stops moving. At this time, the PLC controller 11 also controls the first drive motor 94 to stop moving. Specifically, when the diameter of the central column of the magnetic core to be detected is larger, the linear motor 42 works more The shorter the time, the shorter the distance that the lifting plate 96 moves up, and the larger the distance between the confirmation switch 97 and the pressing plate 98. When the first drive motor 94 stops working, the PLC controller 11 controls the second drive motor 95 to operate, and the second drive motor 95 drives the second drive screw 93 to rotate. The threaded connection between the second drive screw 93 and the pressing plate 98 causes the pressing plate 98 to move toward the confirmation switch 97 until the pressing plate 98 presses on the confirmation switch 97. At this time, the PLC controller 11 controls the second drive motor 95 to stop Action, when the second drive motor 95 is working, the PLC controller 11 synchronously controls the servo motor 63 to work, and the servo motor 63 drives the bidirectional screw 62 to rotate. Through the threaded sleeve effect of the bidirectional screw 62 and the side plate 64, the two side plates 64 drive the pressure sensor 65 to move away from the movable plate 47 until the confirmation switch 97 is pressed and triggered, and the servo motor 63 stops working synchronously. The distance between the two pressure sensors 65 represents the allowable error range [because the working time of the servo motor 63 and the second drive motor 95 is equal, when the distance between the confirmation switch 97 and the pressing plate 98 is larger due to the larger diameter of the magnetic core middle column, it means that the second drive motor 94 needs to work for a longer time to make the confirmation switch 97 pressed and triggered, thereby making the working time of the servo motor 63 longer]. Specifically, the larger the outer diameter of the magnetic core middle column to be detected, the longer the servo motor 63 can act, thereby making the distance between the two pressure sensors 65 larger, and the relative error can be automatically converted into an absolute error based on the outer diameter of the magnetic core middle column to meet the corresponding detection work, thereby ensuring the accuracy of the detection result;

[0050] The PLC controller 11 controls the electric slide rail 41 to drive the detection ball 46 to move along the outer surface of the core column. The compensation spring 48 provides a pushing force for the detection ball 46 to ensure that the detection ball 46 can always contact with the outer surface of the core column, thereby providing timely feedback on the change in the outer diameter of the core column. When the detection ball 46 is synchronously displaced due to the change in the outer diameter of the core column, the detection ball 46 cooperates with the dynamic rod 45 to drive the moving plate 47 to move synchronously. When the change in the outer diameter of the core column exceeds the allowable range, the moving plate 47 presses on the pressure sensor 65. The pressure sensor 65 feeds back a signal to the PLC controller 11. The PLC controller 11 sends a wireless signal to the receiving terminal of the staff, indicating that the core column currently being detected is unqualified.

[0051] During the downward movement of the detection ball 46, if there is dirt on the surface of the core column, the viscosity of the dirt is greater, and the frictional resistance to the movement of the detection ball 46 is greater, so that the measuring shell 44 cooperates with the guide slide bar 71 to overcome the elastic force of the squeezing spring 72 and move toward the extension plate 43, so that the regulating shell 61 presses on the prompt switch 73, indicating that there is dirt at the current detection position of the core column, which affects the accuracy of the detection result. Similarly, the PLC controller 11 sends a wireless signal to the receiving terminal of the staff, indicating that the core column currently being detected is unqualified;

[0052] During the detection process, the PLC controller 11 controls the air pump 53 to work, and the air pump 53 cooperates with the blowing pipe 51 to transport air into the blowing head 52, thereby blowing away the dust and impurities attached to the surface of the core center column, so as to avoid the presence of dust and impurities affecting the measurement accuracy of the detection ball 46. When the core center column is detected to be unqualified, the PLC controller 11 controls the solenoid valve on the blowing pipe 51 to close, and opens the solenoid valve on the branch pipe 81, so that the air pump 53 transports air into the branch pipe 81, and the air is ejected through the small diameter wind head 82. Because the air outlet diameter of the small diameter wind head 82 is small, the wind pressure is increased, and the relatively high-pressure air is blown on the force plate 84 at the corresponding position, thereby causing the marking rod 83 at the corresponding position to move outward, which can correspond to the position where the surface of the core center column is unqualified, so that the staff can quickly locate the position where the problem occurs in the core center column later.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A magnetic core center column detection device, comprising a base (1), wherein a U-shaped support plate (10) is fixedly mounted on the upper end of the base (1), characterized in that: Also includes: A centering clamping mechanism (2) is arranged between the base (1) and the U-shaped support plate (10); A length synchronization detection mechanism (3) is fixedly mounted on the upper end of the U-shaped support plate (10) and is transmission-connected to the centering clamping mechanism (2); An automatic outer diameter measuring mechanism (4) is fixedly mounted between the base (1) and the U-shaped support plate (10); A surface cleaning mechanism (5) is installed on the automatic outer diameter measuring mechanism (4) and the U-shaped support plate (10); An error range regulating mechanism (6) is mounted on the outer diameter automatic measuring mechanism (4); A dirt presence prompting mechanism (7) is arranged between the error range regulating mechanism (6) and the outer diameter automatic measuring mechanism (4); An error position marking mechanism (8) is mounted on the U-shaped support plate (10), the automatic outer diameter measuring mechanism (4) and the outer surface cleaning mechanism (5), and is connected to the outer surface cleaning mechanism (5); An error range confirmation mechanism (9) is fixedly mounted on the outer wall of the U-shaped support plate (10) and is electrically connected to the error range control mechanism (6); A PLC controller (11) is fixedly mounted on the outer wall of the U-shaped support plate (10) and is electrically connected to the centering clamping mechanism (2), the automatic outer diameter measuring mechanism (4), the surface cleaning mechanism (5), the error range regulating mechanism (6), the dirt presence prompting mechanism (7), the error position marking mechanism (8) and the error range confirmation mechanism (9); The outer diameter automatic measuring mechanism (4) comprises an electric slide rail (41) fixedly mounted between a base (1) and a U-shaped support plate (10), the electric slide rail (41) being arranged vertically, the front end of a slider in the electric slide rail (41) being fixedly connected to a linear motor (42), the movable end of the linear motor (42) being fixedly connected to an extension plate (43) of an L-shaped structure, the lower side of the extension plate (43) being connected to a measuring shell (44), a plug hole being provided on one side of the measuring shell (44), and a dynamic rod (45) being movably inserted into the corresponding plug hole, the end of the dynamic rod (45) located outside the measuring shell (44) being fixedly connected to a detection ball (46), the end of the dynamic rod (45) located inside the measuring shell (44) being fixedly connected to a moving plate (47), and a compensation spring (48) sleeved outside the dynamic rod (45) being fixedly connected to the opposite side of the moving plate (47) and the measuring shell (44); The error range control mechanism (6) comprises a control shell (61) fixedly mounted on the upper end of the measuring shell (44); a bidirectional screw (62) is rotatably connected to the inner wall of the control shell (61); a servo motor (63) for driving the bidirectional screw (62) to rotate is fixedly mounted on the outer wall of the control shell (61); two side plates (64) are symmetrically threadedly sleeved on the rod wall of the bidirectional screw (62); the lower ends of the two side plates (64) extend into the measuring shell (44) through a rectangular opening provided at the upper end of the measuring shell (44), and are symmetrically arranged with respect to the moving plate (47); a pressure sensor (65) is fixedly connected to a side of the side plate (64) close to the moving plate (47).

2. A magnetic core center column detection device according to claim 1, characterized in that: The centering clamping mechanism (2) comprises a support shaft (21) rotatably sleeved on the base (1); the upper end of the support shaft (21) is fixedly connected to a support block (22); the lower end of the base (1) is fixedly provided with a motor rotating assembly (23) for driving the support shaft (21) to rotate; the upper end of the U-shaped support plate (10) is fixedly provided with an electric push rod (24); the lower end output end of the electric push rod (24) is rotatably connected to a crimping block (25).

3. A magnetic core center column detection device according to claim 2, characterized in that: The length synchronization detection mechanism (3) comprises a length detection shell (31) fixedly mounted on the upper end of the U-shaped support plate (10); a transmission screw (32) is rotatably connected to the inner wall of the length detection shell (31); one end of the transmission screw (32) penetrates and extends out of the length detection shell (31) and is fixedly connected to a transmission gear (33); a transmission rack (34) is fixedly connected to the outer wall of the output end of the lower end of the electric push rod (24); the transmission rack (34) and the transmission gear (33) are meshingly connected; a transmission seat (35) is threadedly sleeved on the rod wall of the transmission screw (32); a pointer (36) is fixedly connected to the upper end of the transmission seat (35); the upper end of the pointer (36) penetrates the upper end of the length detection shell (31) through a strip-shaped opening provided at the upper end of the length detection shell (31); and the upper end of the length detection shell (31) is also fixedly connected to a length scale (37) located at the rear side of the pointer (36).

4. A magnetic core center column detection device according to claim 1, characterized in that: The surface cleaning treatment mechanism (5) comprises a blowing pipe (51) fixedly inserted on the extension plate (43), the lower end of the blowing pipe (51) is fixedly connected to a blowing head (52), the blowing head (52) is located on the lower side of the measuring shell (44), an air pump (53) is installed on the blowing pipe (51), the air pump (53) is fixedly installed on the upper end of the U-shaped support plate (10), the blowing pipe (51) is provided with a telescopic corrugated section, and the blowing pipe (51) is provided with a solenoid valve.

5. A magnetic core center column detection device according to claim 1, characterized in that: The dirt presence prompting mechanism (7) comprises two guide slide bars (71) symmetrically fixedly connected to the upper end of the regulating shell (61); the upper ends of the guide slide bars (71) penetrate the upper end of the extension plate (43); two squeezing springs (72) sleeved outside the guide slide bars (71) are fixedly connected between the extension plate (43) and the regulating shell (61); and a prompting switch (73) corresponding to the position of the regulating shell (61) is fixedly mounted on the lower end of the extension plate (43).

6. A magnetic core center column detection device according to claim 4, characterized in that: The error position marking mechanism (8) comprises a branch pipe (81) fixedly connected to the blowing pipe (51), one end of the branch pipe (81) away from the blowing pipe (51) is fixedly connected to a small diameter wind head (82), the small diameter wind head (82) is fixedly mounted on the outer wall of the linear motor (42), an electromagnetic valve is mounted on the branch pipe (81), a telescopic corrugated section is provided on the branch pipe (81), a plurality of marking rods (83) are equidistantly and movably inserted into the side wall of the vertical portion of the U-shaped support plate (10), and one end of the marking rod (83) close to the small diameter wind head (82) is fixedly connected to a force-bearing plate (84).

7. A magnetic core center column detection device according to claim 1, characterized in that: The error range confirmation mechanism (9) comprises a confirmation shell (91), the inner wall of the confirmation shell (91) being symmetrically rotatably connected with two mutually parallel first drive screws (92) and second drive screws (93), the outer wall of the confirmation shell (91) being fixedly mounted with a first drive motor (94) and a second drive motor (95) for respectively driving the first drive screw (92) and the second drive screw (93) to rotate, the rod wall of the first drive screw (92) being threadedly sleeved with a lifting plate (96), the upper end of the lifting plate (96) being fixedly mounted with a confirmation switch (97), the rod wall of the second drive screw (93) being threadedly sleeved with a pressing plate (98), the pressing plate (98) being located on the upper side of the confirmation switch (97).

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