Magnetic core processing opening fixing device

Abstract

This invention belongs to the field of magnetic core processing technology, specifically a magnetic core processing hole-fixing device; it also includes a leveling component; the leveling component includes a hydraulic cylinder; an annular chamber is fixed at the bottom of the hydraulic cylinder; an annular slide plate slides inside the annular chamber; the outer ring of the annular slide plate has evenly arranged toothed grooves; a servo motor is mounted on the top of the annular chamber via a mounting plate, and gears are mounted on the servo motor; evenly arranged upright plates are fixed at the bottom of the annular slide plate; horizontal plates are fixed on opposite sides of the upright plates; an annular cylinder is fixed on the worktable, and evenly arranged circular grooves are opened inside the annular cylinder; upright rods slide inside the circular grooves; clamping components are installed on multiple upright rods; the clamping components are used to clamp the magnetic core to be drilled; by setting up the leveling component and the clamping component, this invention can keep the magnetic core in a horizontal state during processing, avoiding defects in the magnetic core after drilling.

Description

Technical Field

[0001] This invention belongs to the field of magnetic core processing technology, specifically a magnetic core processing hole fixing device. Background Technology

[0002] As a core magnetic component in power electronics, communications, and new energy fields, the development and application of toroidal cores with perforations stem from clear functional requirements and performance optimization goals. In critical scenarios such as power conversion, energy storage, and electromagnetic compatibility, toroidal cores made of materials like ferrite and silicon steel are widely used due to their high permeability and low loss characteristics. However, these cores are prone to magnetic saturation under large DC bias currents, leading to a sharp drop in inductance, reduced energy conversion efficiency, and even circuit failures. To address this issue, introducing air gaps through perforations has become a core technological solution.

[0003] As the requirements for precision and efficiency in toroidal magnetic core applications continue to increase, drilling equipment has developed into a diversified technological system to adapt to different materials, sizes, and precision needs. Mechanical drilling equipment is currently the most widely used type, mainly using carbide or diamond-coated drill bits, combined with low-speed and low-feed process parameters. It is suitable for medium-hardness magnetic cores such as ferrite and silicon steel, and has the advantages of low cost and easy operation.

[0004] However, during the drilling process of toroidal magnetic cores, the toroidal magnetic cores are mostly rigid structures. The fit accuracy between their bottom surface and the processing table directly determines the support stability. Dust, metal shavings, tiny particles and other impurities remaining on the table can disrupt the surface contact between the magnetic core and the table, resulting in localized elevation. Even micron-sized impurities can cause the magnetic core to tilt in ways that are difficult to detect with the naked eye. This is especially true for small-diameter, thin toroidal magnetic cores, which are more sensitive to the flatness of the support, and the tilt caused by impurities is more easily amplified.

[0005] This tilting state will directly cause the hole position and diameter accuracy of the magnetic core to fail. The drill bit cutting along the tilt direction will cause the hole axis to deviate from the design reference, the hole diameter to be elliptical, or even the hole position to be offset. Secondly, the tilting will cause the cutting force of the drill bit on the magnetic core to be unevenly distributed. Local pressure concentration will cause the hole edge of brittle magnetic cores such as ferrite and amorphous to chip, crack, or even generate internal microcracks, reducing the mechanical strength and service life of the magnetic core. Summary of the Invention

[0006] To overcome the shortcomings of existing technologies and solve the above-mentioned technical problems, this invention proposes a magnetic core processing hole-fixing device. By setting up a leveling component and a clamping component, the magnetic core can be kept in a horizontal state during processing, avoiding defects in the magnetic core after hole-making; the specific structure is as follows; A magnetic core machining and hole-fixing device includes a drilling machine; a worktable is provided at the bottom of the drilling machine; a spindle box is provided at the top of the drilling machine, and a spindle slides up and down inside the spindle box; a drill bit is installed at the bottom of the spindle through a drill bit clamp; It also includes a leveling component; the leveling component includes a hydraulic cylinder, which is installed on the outside of the spindle box; an annular chamber is fixed at the bottom of the hydraulic cylinder, and the annular chamber is located at the bottom of the spindle box; an annular slide plate slides inside the annular chamber, and the cross-section of the annular slide plate is convex. The outer ring of the annular slide plate has evenly arranged toothed grooves; a servo motor is mounted on the top of the annular compartment via a mounting plate, and a gear is mounted on the servo motor; the gear extends into the annular groove and meshes with the toothed groove; evenly arranged upright plates are fixed to the bottom of the annular slide plate; and horizontal plates are fixed to opposite sides of each upright plate. An annular cylinder is fixed on the workbench, and evenly arranged circular grooves are opened inside the annular cylinder; a vertical rod slides inside the circular groove, and a spring is connected to the bottom of the vertical rod. Each of the aforementioned uprights is equipped with a clamping assembly, and the multiple clamping assemblies are arranged in a ring; the clamping assembly is used to clamp the magnetic core to be drilled.

[0007] In a preferred embodiment of the present invention, the clamping assembly includes a support plate with rounded corners on both sides; the outer ring of the support plate has a rotating belt made of silicone; both sides of the support plate have rotating shafts, which are driven by a first motor and are mounted on the side of the support plate. A fixing plate is provided above the support plate, and a gap is left between the fixing plate and the conveyor belt; the two sides of the fixing plate are fixed to the two sides of the support plate through connecting plates; a clamping plate is provided on the opposite side of the support plate; a locking component is provided on the clamping plate; A threaded cylinder is fixed to the side of the clamping plate facing the fixed plate, and a lead screw is engaged with the threaded cylinder; the lead screw rotates on the fixed plate and is driven by a second motor, which is mounted on the fixed plate; a guide rod is fixed to the clamping plate, and the guide rod passes through the fixed plate and is slidably connected to the fixed plate; Each of the support plates is provided with a U-shaped plate underneath, and the two sides of the U-shaped plate are fixed to the two side plates of the support plate; the U-shaped plate is fixedly connected to the upright.

[0008] In a preferred embodiment of the present invention, the conveyor belt is provided with uniformly arranged transverse grooves.

[0009] In a preferred embodiment of the present invention, a scraper is fixed on the U-shaped plate, and the scraper is in contact with the bottom surface of the conveyor belt.

[0010] In a preferred embodiment of the present invention, the locking assembly includes a locking plate, and the locking plate is inverted L-shaped; the locking plate is fixed to the clamping plate; An annular inclined plate is fixed to the outer ring of each of the vertical plates, and the annular inclined plate is inclined toward the locking plate; the top surface of the locking plate facing the annular inclined plate is also inclined.

[0011] In a preferred embodiment of the present invention, L-shaped plates are fixed on both sides of the clamping plate; The support plate has slides on both sides, and the L-shaped plate slides within the slides.

[0012] In a preferred embodiment of the present invention, the inner rings of the plurality of vertical plates are provided with baffles, and the baffles are in contact with the horizontal plates; the bottom of the horizontal plates is provided with rotatable ball bearings. A first plate is fixed to the side of the upright plate facing the baffle; a sliding rod is fixed to the top of the first plate; a second plate is fixed to the outer ring of the baffle, and the second plate is located above the first plate, with the sliding rod passing through the second plate; A spring is connected between the first plate and the second plate, and under the action of the spring, the baffle is not in contact with the top surface of the magnetic core in the initial state; A push rod is provided below the first plate, and the push rod slides inside the vertical plate; a semi-circular shaft is fixed on the side of the vertical rod facing the baffle, and the semi-circular shaft is connected to the vertical plate by a spring, and there is a distance between the semi-circular shaft and the baffle under the action of the spring; The outer ring surface of the baffle is fixed with uniformly arranged trapezoidal blocks, and each trapezoidal block corresponds one-to-one with a semi-circular shaft, and the semi-circular shaft is initially in contact with the inclined surface of the trapezoidal block. A push ring is fixed to the top of the locking plate.

[0013] In a preferred embodiment of the present invention, an annular air passage is provided inside the annular slide plate; a connecting pipe is fixed to the top of the annular chamber and is connected to an external air source; the connecting pipe is connected to the annular air passage. The bottom of the annular air passage is provided with evenly arranged air holes; the vertical plate is provided with a through groove, and the push rod passes through the through groove; Two inclined grooves are formed inside the horizontal plate, and the inclined grooves are located on both sides of the horizontal plate; the inclined grooves are connected to the through groove.

[0014] In a preferred embodiment of the present invention, an electric actuator is installed on the outer ring of the annular cylinder, and the extension rod of the electric actuator extends into the circular groove. A locking block is fixed on the extension rod of the electric actuator; The annular cylinder has a through hole at its bottom, and a collection cylinder is placed below the through hole.

[0015] The beneficial effects of this invention are as follows: 1. The magnetic core processing and hole-fixing device of the present invention, through the silicone conveyor belt design in the clamping assembly, combined with the cyclic rotation driven by the first motor, can effectively solve the problem of impurity residue between the magnetic core and the support surface. During the cyclic rotation of the conveyor belt from top to bottom, it can not only replace the contact position at the bottom of the magnetic core and actively remove impurities, but also utilize the elasticity of the silicone material to allow tiny impurities to be embedded in the belt and then detached with the rotation, thoroughly cleaning dust, debris and other contaminants from the bottom surface of the magnetic core and the support contact surface. This active cleaning method does not require additional manual pretreatment, which avoids the tilting caused by impurities raising the magnetic core and reduces the scratches on the surface of the magnetic core caused by impurities, laying a clean foundation for subsequent leveling and processing.

[0016] 2. The magnetic core machining hole fixing device of the present invention, when the magnetic core is still slightly tilted due to residual impurities, the downward moving horizontal plate will first contact the high point of the magnetic core and apply downward pressure, pushing the high point of the magnetic core downward. At the same time, the corresponding vertical rod compression spring generates a reverse support force, which is transmitted to the bottom of the magnetic core through the support plate, realizing local adaptive adjustment; in conjunction with the servo motor driving the horizontal plate to rotate and squeeze along the top of the magnetic core, it can fully fit different positions on the surface of the magnetic core, ensuring that the top of the magnetic core and all horizontal plates, and the bottom and the conveyor belt form uniform surface contact, eliminating the hard-to-detect tilt error; thus, the magnetic core is always kept in a horizontal state during machining, and the drill bit cuts in the vertical direction, effectively avoiding defects such as hole axis deviation from the design reference, hole diameter ellipse, and hole position offset; at the same time, the uniform cutting force distribution reduces the risk of drill bit wear and breakage, and reduces the amount of burrs generated.

[0017] 3. The magnetic core processing hole fixing device of the present invention uses a linkage structure to automatically fit the top of the magnetic core during processing, forming a ring-shaped protective barrier. This barrier can accurately block contaminants such as metal debris generated during drilling, preventing them from splashing onto the surfaces of components such as horizontal plates, vertical plates, and ball bearings. This not only prevents debris from adhering and affecting subsequent work, but also reduces the amount of subsequent equipment cleaning work. At the same time, it avoids environmental pollution caused by debris splashing, thus improving the cleanliness and safety of the processing process. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 This is a perspective view of the hole-fixing device of the present invention; Figure 2 This is a structural diagram of the leveling component in this invention; Figure 3 This is a structural diagram of the separation of the leveling component in this invention; Figure 4 This is a structural diagram of the clamping assembly and the annular cylinder in this invention; Figure 5 This is a structural diagram of the clamping component in this invention; Figure 6 This is a top view of the hole-fixing device of the present invention; Figure 7 This is the present invention. Figure 5 Cross-sectional view of section AA during leveling of the device with a centrally located hole; Figure 8 This is the present invention. Figure 7 Enlarged view of a section at point B in the middle; Figure 9 This is the present invention. Figure 7 Enlarged view of a section at point C; Figure 10 This is the present invention. Figure 5 Cross-sectional view of section AA when the centrally located hole fixing device is locked; Figure 11 This is the present invention. Figure 10 Enlarged view of a section at point D; Figure 12 This is the present invention. Figure 10 Enlarged view of a section at point E in the middle.

[0020] In the diagram: 1. Worktable; 11. Spindle box; 12. Drill bit; 2. Hydraulic cylinder; 21. Annular chamber; 211. Connecting pipe; 22. Annular slide plate; 221. Annular air passage; 222. Air hole; 23. Gear; 24. Vertical plate; 241. Through groove; 25. Horizontal plate; 251. Inclined groove; 3. Annular cylinder; 31. Circular groove; 32. Vertical rod; 33. Electric actuator; 34. Locking block; 35. Collection cylinder; 4. Support plate ; 41. Belt; 411. Horizontal groove; 412. Scraper; 42. Shaft; 43. Fixing plate; 44. Clamping plate; 45. Threaded cylinder; 46. Lead screw; 47. U-shaped plate; 5. Locking plate; 51. Annular inclined plate; 52. L-shaped plate; 53. Slide rail; 6. Baffle; 61. First plate; 62. Slide rod; 63. Second plate; 64. Push rod; 65. Semi-circular shaft; 66. Trapezoidal block; 67. Push ring. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] like Figures 1 to 12 As shown, the magnetic core processing and hole fixing device of the present invention, as an embodiment of the present invention, includes a drilling machine; a worktable 1 is provided at the bottom of the drilling machine; a spindle box 11 is provided at the top of the drilling machine, and a spindle slides up and down inside the spindle box 11; a drill bit 12 is clamped and installed at the bottom of the spindle. It also includes a leveling component; the leveling component includes a hydraulic cylinder 2, and the hydraulic cylinder 2 is installed on the outside of the spindle box 11; an annular chamber 21 is fixed at the bottom of the hydraulic cylinder 2, and the annular chamber 21 is located at the bottom of the spindle box 11; an annular slide plate 22 slides inside the annular chamber 21, and the cross-section of the annular slide plate 22 is convex. The outer ring of the annular slide plate 22 is provided with evenly arranged toothed grooves; a servo motor is mounted on the top of the annular compartment 21 via a mounting plate, and a gear 23 is mounted on the servo motor; the gear 23 extends into the annular groove and meshes with the toothed groove; evenly arranged upright plates 24 are fixed to the bottom of the annular slide plate 22; a horizontal plate 25 is fixed to each opposite side of the upright plate 24. An annular cylinder 3 is fixed on the workbench 1, and a uniformly arranged circular groove 31 is opened inside the annular cylinder 3; a vertical rod 32 slides in the circular groove 31, and a spring is connected to the bottom of the vertical rod 32. Each of the multiple uprights 32 is equipped with a clamping assembly, and the multiple clamping assemblies are arranged in a ring; the clamping assembly is used to clamp the magnetic core to be drilled; In this embodiment, the clamping assembly includes a support plate 4, and the support plate 4 has rounded corners on both sides; the outer ring of the support plate 4 has a rotating belt 41, and the rotating belt 41 is made of silicone; both sides of the support plate 4 have rotating shafts 42, and the rotating shafts 42 are driven by a first motor, and the first motor is installed on the side of the support plate 4. A fixing plate 43 is provided above the support plate 4, and a gap is left between the fixing plate 43 and the conveyor belt 41; the two sides of the fixing plate 43 are fixedly connected to the two sides of the support plate 4 through connecting plates; a clamping plate 44 is provided on each opposite side of the support plate 4; a locking component is provided on the clamping plate 44. A threaded cylinder 45 is fixed to the side of the clamping plate 44 facing the fixing plate 43, and a lead screw 46 is engaged with the internal thread of the threaded cylinder 45; the lead screw 46 rotates on the fixing plate 43 and is driven by a second motor, and the second motor is mounted on the fixing plate 43; a guide rod is fixed on the clamping plate 44, and the guide rod passes through the fixing plate 43 and is slidably connected to the fixing plate 43. Each of the support plates 4 is provided with a U-shaped plate 47 below it, and the U-shaped plate 47 is fixed on the two side plates of the support plate 4 on both sides; the U-shaped plate 47 is fixedly connected to the upright 32.

[0023] In practice, when processing the magnetic core, the magnetic core is first placed between multiple clamping assemblies, with the core positioned above the conveyor belt 41 on the outer ring of multiple support plates 4. Then, the second motor on each clamping assembly drives the lead screw 46 to rotate. The rotating lead screw 46 pushes the threaded cylinder 45 and clamping plates 44 towards the magnetic core. As the clamping plates 44 move, they push the magnetic core to the center position. When all clamping plates 44 are in contact with the magnetic core but not clamped, the clamping plates 44 stop moving. Then, the first motor rotates, driving the conveyor belt 41 to rotate via the rotating shaft 42. The conveyor belt 41 rotates cyclically from top to bottom towards the magnetic core. During the process, the position of the magnetic core in contact with the conveyor belt 41 can be replaced. If there are impurities between the magnetic core and the conveyor belt 41, these impurities can be removed. Since the conveyor belt 41 is made of silicone material, if there are impurities between the magnetic core and the conveyor belt 41, the impurities will also fall into the conveyor belt 41 under the pressure of the magnetic core. The rotating conveyor belt 41 can then better remove the impurities. At the same time, the rotating conveyor belt 41 can remove impurities from the bottom surface of the magnetic core. After the conveyor belt 41 has finished rotating, the conveyor belt 41 is controlled to stop rotating. Then, the second motor is controlled to reverse and drive the threaded cylinder 45 and the clamping plate 44 back to their initial state, so that the clamping plate 44 is separated from the magnetic core. Then the magnetic core can be leveled. Specifically, during the leveling of the magnetic core, the hydraulic cylinder 2 is first extended to push the annular chamber 21 and the annular slide plate 22 downwards. The annular slide plate 22 also drives multiple uprights 32 and horizontal plates 25 fixed on the uprights 32 downwards. As the horizontal plates 25 move downwards, they first contact the surface of the magnetic core. If impurities are still present at the bottom of the magnetic core, the magnetic core will remain tilted. Therefore, the horizontal plate 25 aligned with the higher point of the magnetic core will first contact the higher side of the magnetic core and push the higher side of the magnetic core downwards. During the downward movement of the higher side of the magnetic core, impurities will be pressed into the conveyor belt 41. If the remaining impurities are too large to be completely pressed into the conveyor belt 41, the magnetic core will push the corresponding support plate 4 downwards. The downward-moving support plate 4 will drive the uprights 32 downwards in the circular groove 31 through the U-shaped plate 47 and compress the spring in the circular groove 31. When the magnetic core is in a horizontal state, the magnetic core will contact all the horizontal plates 25. After the magnetic core is fitted together, the servo motor is slowly rotated. The servo motor drives the gear 23 to rotate, and the gear 23 drives the annular slide plate 22 to rotate within the annular chamber 21. At the same time, the annular slide plate 22 drives the upright plate 24 and the horizontal plate 25 to rotate along the top surface of the magnetic core, while pushing multiple support plates 4 downward. During the rotation of the horizontal plate 25 along the magnetic core, multiple horizontal plates 25 can contact different positions on the surface of the magnetic core, thereby more comprehensively squeezing different positions on the surface of the magnetic core. As the magnetic core pushes the support plates 4 and the upright 32 downward, the upright 32 will gradually compress the spring, and the upright 32 itself will be subject to the reaction force of the spring, thereby pushing the upright 32, the U-shaped plate 47 and the support plate 4 to move upward and act on the bottom of the magnetic core, thereby squeezing and clamping the magnetic core between multiple horizontal plates 25 and support plates 4, so that the top and bottom of the magnetic core can better fit with the surface of the horizontal plate 25, thus keeping the magnetic core in a horizontal state. More specifically, after the magnetic core is clamped by the support plate 4 and the horizontal plate 25, the annular slide plate 22 is stopped from rotating, and the lead screw 46 is rotated to push the threaded cylinder 45 and the clamping plate 44 to clamp the leveled magnetic core. The locking assembly is used to lock the magnetic core between the horizontal plate 25 and the support plate 4. Then, the magnetic core can be drilled. During drilling, the spindle is rotated and gradually extends from the spindle box 11, thereby driving the drill bit 12 to gradually drill the magnetic core. Since the bottom of the magnetic core is first cleaned by the conveyor belt 41, then... The magnetic core is leveled using multiple horizontal plates 25. Then, the leveled magnetic core is squeezed and limited by the support plate 4 and the horizontal plates 25, so that the magnetic core is processed in a horizontal state. This avoids the magnetic core tilting during processing, which would cause the drill bit 12 to cut in the tilted direction, resulting in the hole axis deviating from the design reference, the hole diameter becoming elliptical, or even the hole position shifting. After the magnetic core is processed, the annular chamber 21 is controlled to move the vertical plate 24 and the horizontal plate 25 upward, and the clamping plate 44 is controlled to move away from the magnetic core. Then, the magnetic core can be removed. Furthermore, the design of the silicone conveyor belt 41 in the clamping assembly, combined with the cyclic rotation driven by the first motor, effectively solves the problem of impurity residue between the magnetic core and the support surface. During the cyclic rotation from top to bottom, the conveyor belt 41 not only replaces the contact position at the bottom of the magnetic core to actively remove impurities, but also utilizes the elasticity of the silicone material to allow tiny impurities to embed into the belt and then detach with the rotation, thoroughly cleaning dust, debris, and other contaminants from the bottom surface of the magnetic core and the support contact surface. This active cleaning method requires no additional manual pretreatment, avoiding tilting caused by impurities raising the magnetic core and reducing scratches on the magnetic core surface caused by impurities, laying a clean foundation for subsequent leveling and processing. When the magnetic core is slightly tilted due to residual impurities, the downward-moving horizontal plate 25 will first contact the highest point of the magnetic core and apply downward pressure, pushing the highest point of the magnetic core downward. At the same time, the corresponding vertical rod 32 compresses the spring to generate a reverse supporting force, which is transmitted to the bottom of the magnetic core through the support plate 4, realizing local adaptive adjustment. With the servo motor driving the horizontal plate 25 to rotate and squeeze along the top of the magnetic core, it can fully fit different positions on the surface of the magnetic core, ensuring that the top of the magnetic core and all horizontal plates 25, and the bottom and the conveyor belt 41 form uniform surface contact, eliminating the hard-to-detect tilt error. Thus, the magnetic core is always kept in a horizontal state during processing, and the drill bit 12 cuts in the vertical direction, effectively avoiding defects such as hole axis deviation from the design datum, hole diameter ellipse, and hole position offset. At the same time, the uniform cutting force distribution reduces the risk of drill bit 12 wear and breakage, and reduces the amount of burrs generated.

[0024] As one embodiment of the present invention, the conveyor belt 41 is provided with uniformly arranged transverse grooves 411; In this embodiment, a scraper 412 is fixed on the U-shaped plate 47, and the scraper 412 is in contact with the bottom surface of the conveyor belt 41; During implementation, since the surface of the conveyor belt 41 is provided with uniformly arranged transverse grooves 411, when the belt rotates along the bottom of the magnetic core, it will scrape the bottom of the magnetic core through the transverse grooves 411. If impurities are present, the scraped impurities will fall into the transverse grooves 411 and then be carried to the bottom of the support plate 4 by the rotating transverse grooves 411. When the conveyor belt 41 rotates to the bottom, the impurities that have fallen into the transverse grooves 411 will fall out of the transverse grooves 411. At the same time, due to the presence of the scraper 412, the rotating conveyor belt 41 will be scraped, thereby removing the impurities pressed into the conveyor belt 41, thus preventing impurities from remaining on the conveyor belt 41 and moving again with the conveyor belt 41 to the bottom of the magnetic core.

[0025] As one embodiment of the present invention; the locking assembly includes a locking plate 5, and the locking plate 5 is inverted L-shaped; the locking plate 5 is fixed on the clamping plate 44; An annular inclined plate 51 is fixed to the outer ring of multiple upright plates 24, and the annular inclined plate 51 is inclined toward the locking plate 5; the top surface of the locking plate 5 facing the annular inclined plate 51 is also inclined. In this embodiment, L-shaped plates 52 are fixed on both sides of the clamping plate 44; The support plate 4 has slide rails 53 on both sides, and the L-shaped plate 52 slides in the slide rails 53. During implementation, since the clamping plate 44 is fixed with the L-shaped plate 52 and the L-shaped plate 52 slides in the slide rails 53 on both sides of the support plate 4, when the lead screw 46 pushes the threaded cylinder 45 and the clamping plate 44 to move towards the magnetic core side, the clamping plate 44 will drive the L-shaped plate 52 to slide in the slide rail 53, thereby improving the rigidity of the clamping plate 44. Specifically, when the magnetic core needs to be processed, multiple clamping plates 44 are controlled to clamp the magnetic core, thereby fixing the magnetic core within the clamping plates 44. At the same time, as the clamping plates 44 move towards the magnetic core, they will drive the locking plate 5 to move. The moving locking plate 5 will gradually come into contact with the inclined surface of the annular inclined plate 51. As the clamping plates 44 continue to drive the locking plate 5 towards the magnetic core, the inclined surface on the locking plate 5 will gradually move along the inclined surface of the annular inclined plate 51. Since the annular inclined plate 51 is fixed, as the inclined surface on the locking plate 5 moves along the annular inclined plate 51, it will gradually pull the clamping plate 44 upward. Since the L-shaped plate 52 slides in the slide rails 53 on both sides of the support plate 4, it will pull the support plate 4 to gradually squeeze the magnetic core, thereby locking the magnetic core between the support plate 4 and the horizontal plate 25. After the clamping plates 44 clamp the magnetic core, and the inclined surface on the locking plate 5 is also in contact with the annular inclined plate 51, the magnetic core can then be processed. More specifically, when processing the magnetic core, since the position of the annular inclined plate 51 is fixed, by making the locking plate 5 fit against the annular inclined plate 51, the locking plate 5 can be limited, thereby limiting the support plate 4 and fixing the support plate 4 in a fixed state, thus fixing the magnetic core between the support plate 4 and the horizontal plate 25. Then, the drill bit 12 can be used to drill holes in the magnetic core.

[0026] As an embodiment of the present invention; the inner ring of the plurality of vertical plates 24 is provided with baffles 6, and the baffles 6 are in contact with the horizontal plate 25; the bottom of the horizontal plate 25 is provided with rotatable ball bearings; A first plate 61 is fixed to the side of the upright plate 24 facing the baffle 6; a sliding rod 62 is fixed to the top of the first plate 61; a second plate 63 is fixed to the outer ring of the baffle 6, and the second plate 63 is located above the first plate 61, and the sliding rod 62 passes through the second plate 63. A spring is connected between the first plate 61 and the second plate 63, and under the action of the spring, the baffle 6 is not in contact with the top surface of the magnetic core in the initial state. A push rod 64 is provided below the first plate 61, and the push rod 64 slides inside the upright plate 24; a semi-circular shaft 65 is fixed on the side of the upright rod 32 facing the baffle 6, and the semi-circular shaft 65 is connected to the upright plate 24 by a spring, and there is a distance between the semi-circular shaft 65 and the baffle 6 under the action of the spring. The outer ring surface of the baffle 6 is fixed with uniformly arranged trapezoidal blocks 66, and each trapezoidal block 66 corresponds one-to-one with the semi-circular shaft 65, and the semi-circular shaft 65 is in contact with the inclined surface of the trapezoidal block 66 in the initial state. A push ring 67 is fixed to the top of the locking plate 5; During implementation, as the locking plate 5 gradually comes into contact with the annular inclined plate 51, the locking plate 5 will drive the push ring 67 to move towards the side of the vertical plate 24. The moving push ring 67 will gradually come into contact with the push rod 64 and push the push rod 64 towards the side of the stop cylinder 6. The moving push rod 64 will drive the semi-circular shaft 65 to gradually come into contact with the trapezoidal block 66 and press the trapezoidal block 66 downward. The trapezoidal block 66 will drive the stop cylinder 6 to move downward. The moving stop cylinder 6 will drive the second plate 63 to move downward and gradually compress the spring between the second plate 63 and the first plate 61. When the push ring 67 comes into contact with the vertical plate 24, the stop cylinder 6 will come into contact with the top of the magnetic core. Then, the magnetic core can be drilled. During the drilling process, the stop cylinder 6 can block the debris generated during the drilling process and prevent the debris from splashing onto the horizontal plate 25 and the vertical plate 24. Meanwhile, since there are ball bearings at the bottom of the horizontal plate 25, the friction on the magnetic core can be reduced when the horizontal plate 25 rotates along the magnetic core, and the contact area with the magnetic core can also be reduced. After the processing is completed, the control clamp 44 moves away from the magnetic core, and at the same time, it will drive the push ring 67 away from the push rod 64. The push rod 64 and the semi-circular shaft 65 will return to their initial state under the action of the spring, and the stop cylinder 6 will return to its initial state under the action of the springs of the first plate 61 and the second plate 63, so that the stop cylinder 6 no longer contacts the magnetic core. The baffle 6 automatically adheres to the top of the magnetic core during processing through a linkage structure, forming a ring-shaped protective barrier. This barrier can accurately block contaminants such as metal shavings generated during drilling, preventing them from splashing onto the surfaces of components such as the horizontal plate 25, vertical plate 24, and ball bearings. This not only prevents shavings from adhering and affecting subsequent work, but also reduces the amount of subsequent equipment cleaning work. At the same time, it avoids environmental pollution caused by shavings splashing, thus improving the cleanliness and safety of the processing process.

[0027] As an embodiment of the present invention; an annular air passage 221 is provided inside the annular slide plate 22; a connecting pipe 211 is fixed on the top of the annular chamber 21, and the connecting pipe 211 is connected to an external air source; the connecting pipe 211 is connected to the annular air passage 221; The bottom of the annular air passage 221 is provided with evenly arranged air holes 222; the vertical plate 24 is provided with a through groove 241, and the push rod 64 passes through the through groove 241. Two inclined grooves 251 are formed in the horizontal plate 25, and the inclined grooves 251 are located on both sides of the horizontal plate 25; the inclined grooves 251 are connected to the through groove 241. In this embodiment, an electric actuator 33 is installed on the outer ring of the annular cylinder 3, and the extension rod of the electric actuator 33 extends into the circular groove 31; A locking block 34 is fixed on the extension rod of the electric actuator 33; The annular cylinder 3 has a through hole at the bottom, and a collection cylinder 35 is placed below the through hole; During implementation, before leveling the magnetic core, an external air source is introduced into the annular chamber 21. The gas entering the annular chamber 21 enters the annular air passage 221, and then enters the through groove 241 of the vertical plate 24 through the air hole 222. The gas entering the through groove 241 enters the inclined groove 251 and is ejected through the inclined groove 251. When the horizontal plate 25 rotates along the surface of the magnetic core, the gas ejected from the inclined groove 251 blows off the impurities remaining on the surface of the magnetic core, preventing the impurities from contacting the balls and affecting the rotation of the balls along the magnetic core. At the same time, it prevents the balls from pressing down on the magnetic core when passing under the impurities, causing fluctuations in the position of the magnetic core, which would affect the leveling process of the magnetic core. After drilling through the magnetic core, the generated debris will fall into the collection cylinder 35 through the through hole and then be collected. Since an electric push rod 33 is provided on the outside of the annular cylinder 3, and a locking block 34 is fixed on the electric push rod 33, after the magnetic core is leveled and in a stationary state, the electric push rod 33 can be extended to push the locking block 34 against the upright 32, thereby locking and fixing the upright 32. Therefore, not only can the position of the magnetic core be fixed by using the locking assembly, but the position of the magnetic core can also be fixed by using the locking block 34 to lock the position of the upright 32.

[0028] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing the present invention and simplifying the description only, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and should not be construed as indicating or implying relative importance.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A magnetic core processing hole fixing device, comprising a drilling machine; a worktable (1) is provided at the bottom of the drilling machine; a spindle box (11) is provided at the top of the drilling machine, and a spindle slides up and down inside the spindle box (11); a drill bit (12) is clamped and installed at the bottom of the spindle through a drill bit (12); Its features are, It also includes a leveling component; the leveling component includes a hydraulic cylinder (2), and the hydraulic cylinder (2) is installed on the outside of the spindle box (11); an annular chamber (21) is fixed at the bottom of the hydraulic cylinder (2); an annular slide plate (22) slides inside the annular chamber (21), and the cross-section of the annular slide plate (22) is convex. The outer ring of the annular slide plate (22) is provided with uniformly arranged toothed grooves; a servo motor is mounted on the top of the annular compartment (21) via a mounting plate, and a gear (23) is mounted on the servo motor; the gear (23) extends into the annular groove and meshes with the toothed groove; a uniformly arranged upright plate (24) is fixed to the bottom of the annular slide plate (22); a horizontal plate (25) is fixed to each opposite side of the upright plate (24); An annular cylinder (3) is fixed on the workbench (1), and a uniformly arranged circular groove (31) is provided inside the annular cylinder (3); a vertical rod (32) slides inside the circular groove (31), and a spring is connected to the bottom of the vertical rod (32); Each of the multiple uprights (32) is equipped with a clamping assembly; the clamping assembly is used to clamp the magnetic core to be drilled.

2. The magnetic core processing and hole-fixing equipment according to claim 1, characterized in that: The clamping assembly includes a support plate (4) with rounded corners on both sides; the outer ring of the support plate (4) has a rotating belt (41) which is made of silicone; both sides of the support plate (4) have rotating shafts (42) which are driven by a first motor and the first motor is installed on the side of the support plate (4); A fixing plate (43) is provided above the support plate (4), and a gap is left between the fixing plate (43) and the conveyor belt (41); the two sides of the fixing plate (43) are fixedly connected to the two sides of the support plate (4) through connecting plates; a clamping plate (44) is provided on the opposite side of the support plate (4); a locking component is provided on the clamping plate (44); A threaded cylinder (45) is fixed to the side of the clamping plate (44) facing the fixing plate (43), and a lead screw (46) is threaded into the threaded cylinder (45); the lead screw (46) rotates on the fixing plate (43) and is driven by a second motor, which is mounted on the fixing plate (43); a guide rod is fixed on the clamping plate (44), and the guide rod passes through the fixing plate (43) and is slidably connected to the fixing plate (43); Each of the support plates (4) is provided with a U-shaped plate (47) below it, and the U-shaped plate (47) is fixed on both sides of the support plate (4); the U-shaped plate (47) is fixedly connected to the upright (32).

3. The magnetic core processing and hole-fixing equipment according to claim 2, characterized in that: The conveyor belt (41) is provided with uniformly arranged transverse grooves (411).

4. The magnetic core processing and hole-fixing equipment according to claim 2, characterized in that: A scraper (412) is fixed on the U-shaped plate (47), and the scraper (412) is in contact with the bottom surface of the conveyor belt (41).

5. The magnetic core processing and hole-fixing equipment according to claim 3, characterized in that: The locking assembly includes a locking plate (5), and the locking plate (5) is inverted L-shaped; the locking plate (5) is fixed on the clamping plate (44); An annular inclined plate (51) is fixed to the outer ring of multiple upright plates (24), and the annular inclined plate (51) is inclined toward the locking plate (5); the surface of the top of the locking plate (5) facing the annular inclined plate (51) is also inclined.

6. The magnetic core processing and hole-fixing equipment according to claim 4, characterized in that: Both sides of the clamp (44) are fixed with L-shaped plates (52); The support plate (4) has slides (53) on both sides, and the L-shaped plate (52) slides in the slides (53).

7. The magnetic core processing and hole-fixing equipment according to claim 2, characterized in that: The inner ring of each of the vertical plates (24) is provided with a baffle (6), and the baffle (6) is in contact with the horizontal plate (25); the bottom of the horizontal plate (25) is provided with a ball bearing. The upright plate (24) is fixed with a first plate (61) on the side facing the baffle (6); a sliding rod (62) is fixed on the top of the first plate (61); a second plate (63) is fixed on the outer ring of the baffle (6), and the second plate (63) is located above the first plate (61), and the sliding rod (62) passes through the second plate (63); A spring is connected between the first plate (61) and the second plate (63), and under the action of the spring, the baffle (6) is not in contact with the top surface of the magnetic core in the initial state; A push rod (64) is provided below the first plate (61), and the push rod (64) slides inside the upright plate (24); a semi-circular shaft (65) is fixed on the side of the upright rod (32) facing the baffle (6), and the semi-circular shaft (65) is connected to the upright plate (24) by a spring, and there is a distance between the semi-circular shaft (65) and the baffle (6) under the action of the spring; The outer ring surface of the baffle (6) is fixed with uniformly arranged trapezoidal blocks (66), and each trapezoidal block (66) corresponds to a semi-circular shaft (65) one by one. In the initial state, the semi-circular shaft (65) is in contact with the inclined surface of the trapezoidal block (66). A push ring (67) is fixed to the top of the locking plate (5).

8. The magnetic core processing and hole-fixing equipment according to claim 6, characterized in that: The annular slide plate (22) has an annular air passage (221) inside; the top of the annular chamber (21) is fixed with a connecting pipe (211), and the connecting pipe (211) is connected to an external air source; the connecting pipe (211) is connected to the annular air passage (221); The bottom of the annular air passage (221) is provided with evenly arranged air holes (222); the vertical plate (24) is provided with a through groove (241), and the push rod (64) passes through the through groove (241); Two inclined grooves (251) are provided in the horizontal plate (25), and the inclined grooves (251) are located on both sides of the horizontal plate (25); the inclined grooves (251) are connected to the through groove (241).

9. The magnetic core processing and hole-fixing equipment according to claim 2, characterized in that: An electric actuator (33) is installed on the outer ring of the annular cylinder (3), and the extension rod of the electric actuator (33) extends into the circular groove (31); A locking block (34) is fixed on the extension rod of the electric actuator (33); The annular cylinder (3) has a through hole at the bottom, and a collection cylinder (35) is placed below the through hole.

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