Multifunctional grain orientation silicon steel sheet demagnetization equipment and demagnetization method thereof

Abstract

The invention discloses multifunctional grain orientation silicon steel sheet demagnetization equipment which comprises an optical detection module, a non-magnetic scale carrier module, a weighing module and a demagnetization moving module. The non-magnetic scale carrier module is fixedly installed on the supporting platform through the supporting frame, the supporting frame is installed close to the supporting stand column, the weighing module is arranged in the supporting frame and fixedly installed on the supporting platform, and the degaussing moving module is fixedly installed on the supporting platform and installed on one side of the supporting frame. The equipment can measure the geometric dimension, measure the included angle between the sample extension direction and the cutting direction, judge whether burrs exist on the edge of the sample or not, measure the dimension of the sample and demagnetize the sample.

Description

Technical Field

[0001] The invention belongs to the technical field of silicon steel sheet demagnetization, and relates to a multifunctional grain-oriented silicon steel sheet demagnetization device and a demagnetization method thereof. Background Art

[0002] Grain-oriented silicon steel sheet, also known as grain-oriented electrical steel strip, is a thin strip of ferrosilicon alloy with a silicon content of approximately 3%. It is commonly used in the manufacture of cores for electromagnetic equipment such as power transformers and reactors. Due to the grain orientation, the strip has a high magnetic permeability in the direction of easy magnetization. During the specific total loss sampling test for this type of silicon steel sheet, the test samples must be inspected for the angle between the cutting angle and the extension direction, the presence of burrs on the edges, and the weight. The samples must also be demagnetized using a circulating magnetic field with a higher magnetic field intensity than that used during the specific total loss test. Only samples that pass the sample pretreatment can be tested for specific total loss.

[0003] This equipment can complete geometric dimension measurement, determine the angle between the sample extension direction and the cutting direction, determine whether there are burrs on the sample edge, measure the sample size, and demagnetize the sample. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a multifunctional grain-oriented silicon steel sheet demagnetization device and a demagnetization method thereof. A multifunctional grain-oriented silicon steel sheet demagnetization device comprises an optical detection module, a non-magnetic scale carrier module, a weighing module, and a demagnetization movable module, wherein the optical detection module is fixedly mounted on a support platform via a support column, the non-magnetic scale carrier module is fixedly mounted on the support platform via a support frame, and the support frame is mounted close to the support column, the weighing module is arranged inside the support frame and fixedly mounted on the support platform, and the demagnetization movable module is fixedly mounted on the support platform and mounted on one side of the support frame.

[0005] Furthermore, the optical detection module adopts an optical camera with adjustable focal length, and the support column adopts an L-shaped structure, the long side of which is fixedly mounted on the support platform, the side is fixed by a right-angled triangle fixing structure, the short side is parallel to the support platform, and the optical camera is fixedly mounted on the short side.

[0006] Furthermore, the non-magnetic scale carrier module adopts a non-magnetic scale frame structure, which is fixedly installed on the support frame and is made of magnetically insensitive material. A right-angle sample placement area is provided on the top of the non-magnetic scale frame, and through holes are respectively provided at corresponding positions in the middle of the non-magnetic scale frame, the support frame and the right-angle sample placement area.

[0007] Furthermore, the optical camera is located directly above the right-angle sample placement area, and the optical camera's shooting range covers the right-angle sample placement area.

[0008] Furthermore, the weighing module is composed of an electric cylinder and a weighing sensor. The electric cylinder is fixedly mounted on the supporting platform, and the weighing sensor is fixedly mounted on the top of the electric cylinder and can move up and down under the drive of the electric cylinder.

[0009] Furthermore, the load cell is mounted directly below the through hole and can extend out of all through holes.

[0010] Furthermore, the demagnetization moving module includes a screw module, a sliding mechanism and a non-metallic demagnetization coil. The screw module is fixedly mounted on the support platform. One end of the sliding mechanism is mounted on the screw module and can move left and right driven by the screw module. The other end is fixedly mounted with a non-metallic demagnetization coil through a mounting plate.

[0011] Furthermore, the support column, support frame and screw module are installed on the support platform in sequence.

[0012] Furthermore, when the sliding mechanism moves to a position close to the non-magnetic scale carrier module under the drive of the screw module, the non-metallic demagnetization coil on it completely covers the right-angle sample placement area. When the sliding mechanism moves to a position away from the non-magnetic scale carrier module under the drive of the screw module, the non-metallic demagnetization coil is away from the right-angle sample placement area and does not affect the optical camera's shooting of the right-angle sample placement area.

[0013] Furthermore, the demagnetization method is

[0014] Step 1: Place the sheared and polished sample to be tested into the right-angle sample placement area on the non-magnetic scale frame;

[0015] Step 2: Start the optical camera and refer to the ruler to obtain the size of the sample and detect whether there are burrs on the edge of the sample;

[0016] Step 3: After the test is completed, start the electric cylinder, the piston of the electric cylinder extends, pushes the weighing sensor, and the weighing sensor pushes out the sample. When it reaches the set height, the system can read the sample weight. After weighing is completed, the piston of the electric cylinder retracts and the sample falls back to its original position;

[0017] Step 4: Start the lead screw module. When the non-metallic degaussing coil moves to the top of the sample, the mechanism stops moving and starts the degaussing process.

[0018] Step 5: After the demagnetization process is completed, the non-metallic demagnetization coil moving mechanism moves back and the detection is completed.

[0019] Compared with the prior art, the present invention has the following significant advantages:

[0020] 1) The present invention fixes the visual device through an L-shaped support structure, and further supports and fixes the support structure through a right-angled triangle, effectively preventing the visual device from loosening or deviating.

[0021] 2) The present invention cleverly combines the weighing equipment with the placing equipment through a support frame, effectively solving the problem of silicon steel sheets being offset due to excessive movement during the weighing process and affecting subsequent processes.

[0022] 3) The present invention further integrates the L-shaped support structure and the support frame by closely fitting them together, thereby further preventing relative offset between the visual device and the silicon steel sheet from affecting detection.

[0023] 4) The present invention adjusts the position of the non-metallic degaussing coil by rotating the lead screw module, thereby further controlling the position of the non-metallic degaussing coil.

[0024] 5) Machine vision can accurately determine whether the angle between the shear angle and the extension direction of the test sample meets the test requirements.

[0025] 6) Use machine vision to detect whether the burrs on the edge of the sample meet the inspection requirements.

[0026] 7) The sample weight data is saved by direct weighing method and used in the calculation of total loss determination, thus avoiding misreading and calculation errors in manual measurement.

[0027] 8) The demagnetization coil can be used to complete the demagnetization process of the sample; the entire equipment reduces the influence of human factors in the qualification judgment of the test sample, and automatically detects and saves the parameters required for the total loss determination, which plays a fundamental role in the standardization and intelligence of the random inspection of grain-oriented silicon steel sheet samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Attachment Figure 1 This is an overall schematic diagram of the multifunctional grain-oriented silicon steel sheet demagnetization equipment of the present invention;

[0029] Attachment Figure 2 This is an installation diagram of the optical detection module of the present invention;

[0030] Attachment Figure 3 This is an installation diagram of the non-magnetic scale carrier module of the present invention;

[0031] Attachment Figure 4 This is a schematic diagram of the non-magnetic scale frame of the present invention;

[0032] Attachment Figure 5 This is a schematic diagram of the weighing module of the present invention;

[0033] Attachment Figure 6 This is a schematic diagram of the degaussing moving module of the present invention.

[0034] In the figure, 1 is the optical detection module; 1-1 is the optical camera; 1-2 is the support column; 1-3 is the right triangle fixing structure;

[0035] 2. Non-magnetic scale carrier module; 2-1. Right-angled triangle fixing structure; 2-2. Support frame; 2-3. Right-angled sample placement area; 2-4. Through hole;

[0036] 3. Weighing module; 3-1. Weighing sensor; 3-2. Electric cylinder;

[0037] 4. Degaussing moving module; 4-1. Screw module; 4-2. Sliding mechanism; 4-3. Non-metallic degaussing coil;

[0038] 5. Support platform DETAILED DESCRIPTION

[0039] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0041] In addition, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0042] Example 1

[0043] Combined with attachment Figure 1-6A multifunctional grain-oriented silicon steel sheet demagnetization device includes an optical detection module 1, a non-magnetic scale carrier module 2, a weighing module 3 and a demagnetization moving module 4. The optical detection module 1 is fixedly mounted on the support platform 5 through a support column 1-2, the non-magnetic scale carrier module 2 is fixedly mounted on the support platform 5 through a support frame 2-2, and the support frame 2-2 is installed close to the support column 1-2, the weighing module 3 is arranged inside the support frame 2-2 and fixedly mounted on the support platform 5, and the demagnetization moving module 4 is fixedly mounted on the support platform 5 and installed on one side of the support frame 2-2.

[0044] The optical detection module 1 adopts an optical camera 1-1 with adjustable focal length, and the support column 1-2 adopts an L-shaped structure, the long side of which is fixedly mounted on the support platform 5, and the side is fixed by a right-angled triangle fixing structure 1-3, the short side is parallel to the support platform 5, and the optical camera 1-1 is fixedly mounted on the short side.

[0045] The non-magnetic scale carrier module 2 adopts a frame structure, and the non-magnetic scale frame 2-1 is fixedly installed on the support frame 2-2. It is made of magnetically insensitive material. A right-angle sample placement area 2-3 is provided on the top of the non-magnetic scale frame 2-1, and through holes 2-4 are respectively provided at corresponding positions in the middle of the non-magnetic scale frame 2-1, the support frame 2-2 and the right-angle sample placement area 2-3.

[0046] The optical camera 1 - 1 is located directly above the right-angle sample placement area 2 - 3 , and the shooting range of the optical camera 1 - 1 covers the right-angle sample placement area 2 - 3 .

[0047] The weighing module 3 is composed of an electric cylinder 3-2 and a weighing sensor 3-1. The electric cylinder 3-2 is fixedly mounted on the supporting platform 5, and the weighing sensor 3-1 is fixedly mounted on the top thereof and can move up and down under the drive of the electric cylinder 3-2.

[0048] The weighing sensor 3-2 is installed just below the through hole 2-4 and can extend out of all the through holes 2-4.

[0049] The demagnetization moving module 4 includes a screw module 4-1, a sliding mechanism 4-2 and a non-metallic demagnetization coil 4-3. The screw module 4-1 is fixedly installed on the support platform 5. One end of the sliding mechanism 4-2 is installed on the screw module 4-1 and can move left and right under the drive of the screw module 4-1. The other end is fixedly installed with the non-metallic demagnetization coil 4-3 through a mounting plate.

[0050] The support column 1-2, the support frame 2-2 and the lead screw module 4-1 are sequentially installed on the support platform.

[0051] When the sliding mechanism 4-2 is driven by the screw module 4-1 to move to a position close to the non-magnetic scale carrier module 2, the non-metallic demagnetization coil 4-3 thereon completely covers the right-angle sample placement area 2-3. When the sliding mechanism 4-2 is driven by the screw module 4-1 to move to a position away from the non-magnetic scale carrier module 2, the non-metallic demagnetization coil 4-3 is away from the right-angle sample placement area 2-3 and does not affect the optical camera 1-1 from photographing the right-angle sample placement area 2-3.

[0052] Example 2

[0053] The demagnetization method is

[0054] Step 1: Place the sheared and polished sample to be tested into the right-angle sample placement area 2-3 on the non-magnetic scale frame;

[0055] Step 2: Start the optical camera 1-1, refer to the ruler, obtain the size of the sample, and detect whether there are burrs on the edge of the sample; detecting whether there are burrs on the edge of the sample may cause abnormalities in the subsequent total loss measurement;

[0056] Step 3: After the test is completed, start the electric cylinder 3-2, the piston of the electric cylinder 3-2 extends, pushes the weighing sensor 3-1, and the weighing sensor 3-1 pushes out the sample. When it reaches the set height, the system can read the sample weight. After weighing is completed, the piston of the electric cylinder 3-2 retracts and the sample falls back to its original position.

[0057] Step 4: The lead screw module 3-1 is started. When the non-metallic degaussing coil 3-3 moves to the top of the sample, the mechanism stops moving and starts the degaussing process.

[0058] Step 5: After the demagnetization process is completed, the non-metallic demagnetization coil 3-3 moving mechanism moves backward and the detection is completed.

[0059] The sample's dimensions and weight are used as the basis for subsequent calculations of the total loss ratio. Machine vision can also be used to verify whether the difference between the angle between the cutting direction and the grain-oriented silicon steel sheet's extension direction and 90 degrees falls within the test error range, thereby determining whether the sample was cut appropriately.

[0060] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0061] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be considered as equivalent replacement methods and are included in the scope of protection of the present invention.

Claims

1. A multifunctional grain-oriented silicon steel sheet demagnetization device, comprising an optical detection module, a non-magnetic scale carrier module, a weighing module and a demagnetization movement module, characterized in that :The optical detection module is fixedly installed on the support platform through the support column, the non-magnetic scale carrier module is fixedly installed on the support platform through the support frame, and the support frame is installed close to the support column, the weighing module is arranged inside the support frame and fixedly installed on the support platform, and the demagnetization movement module is fixedly installed on the support platform and installed on one side of the support frame.

2. A multifunctional grain-oriented silicon steel sheet demagnetization device according to claim 1, characterized in that: The optical detection module adopts an optical camera with adjustable focal length, and the support column adopts an L-shaped structure, with its long side fixedly mounted on the support platform, the side being fixed by a right-angled triangle fixing structure, the short side being parallel to the support platform, and the optical camera being fixedly mounted on the short side.

3. The multifunctional grain-oriented silicon steel sheet demagnetization device according to claim 1, characterized in that: The non-magnetic scale carrier module adopts a non-magnetic scale frame structure. The non-magnetic scale frame is fixedly installed on the support frame and is made of magnetically insensitive material. A right-angle sample placement area is provided on the top of the non-magnetic scale frame. Through holes are respectively provided at corresponding positions in the middle of the non-magnetic scale frame, the support frame and the right-angle sample placement area.

4. A multifunctional grain-oriented silicon steel sheet demagnetization device according to claim 2-3, characterized in that: The optical camera is located directly above the right-angle sample placement area, and the optical camera's shooting range covers the right-angle sample placement area.

5. The multifunctional grain-oriented silicon steel sheet demagnetization device according to claim 1, characterized in that: The weighing module consists of an electric cylinder and a weighing sensor. The electric cylinder is fixedly installed on the supporting platform, and the weighing sensor is fixedly installed on the top of the electric cylinder and can move up and down under the drive of the electric cylinder.

6. A multifunctional grain-oriented silicon steel sheet demagnetization device according to claims 3-5, characterized in that: The load cell is installed just below the through hole and can extend out of all through holes.

7. The multifunctional grain-oriented silicon steel sheet demagnetization device according to claim 1, characterized in that: The demagnetization moving module includes a screw module, a sliding mechanism and a non-metallic demagnetization coil. The screw module is fixedly mounted on the support platform. One end of the sliding mechanism is mounted on the screw module and can move left and right under the drive of the screw module. The other end is fixedly mounted with the non-metallic demagnetization coil through a mounting plate.

8. The multifunctional grain-oriented silicon steel sheet demagnetization device according to claims 2-6, characterized in that: The support column, support frame and lead screw module are sequentially mounted on the support platform.

9. The multifunctional grain-oriented silicon steel sheet demagnetization device according to claims 3-5, characterized in that: When the sliding mechanism moves to a position close to the non-magnetic scale carrier module under the drive of the screw module, the non-metallic degaussing coil on it completely covers the right-angle sample placement area. When the sliding mechanism moves to a position away from the non-magnetic scale carrier module under the drive of the screw module, the non-metallic degaussing coil is away from the right-angle sample placement area and does not affect the optical camera's shooting of the right-angle sample placement area.

10. A multifunctional grain-oriented silicon steel sheet demagnetization device and demagnetization method according to any one of claims 1 to 9, characterized in that: The demagnetization method is Step 1: Place the sheared and polished sample to be tested into the right-angle sample placement area on the non-magnetic scale frame; Step 2: Start the optical camera and refer to the ruler to obtain the size of the sample and detect whether there are burrs on the edge of the sample; Step 3: After the test is completed, start the electric cylinder, the piston of the electric cylinder extends, pushes the weighing sensor, and the weighing sensor pushes out the sample. When it reaches the set height, the system can read the sample weight. After weighing is completed, the piston of the electric cylinder retracts and the sample falls back to its original position; Step 4: Start the lead screw module. When the non-metallic degaussing coil moves to the top of the sample, the mechanism stops moving and starts the degaussing process. Step 5: After the demagnetization process is completed, the non-metallic demagnetization coil moving mechanism moves backward and the detection is completed.

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