Magnetic core drilling device

Abstract

The utility model discloses a magnetic core drilling device, which belongs to the field of magnetic core production and comprises a working table, a magnetic core fixing seat is arranged at the center of the upper surface of the working table, a stand column is vertically fixed on the rear side of the top of the working table, a lifting motor is fixed on the top of the stand column and provided with a threaded rod, and the threaded rod is fixed on the working table. A cross beam is installed on the front side of the stand column in a sliding mode and screwed on the threaded rod, a control motor is fixed to the upper portion of the end of the cross beam, a drill bit is downwards installed at the output end of the control motor, the drill bit is controlled by the motor to move up and down, and in the downward moving process of the drill bit, the cross beam can move downwards to press down a pressurizing head; and on the contrary, when the drill bit is lifted up, the protection plate rotates to the rear side, so that the front side of the fixed seat is opened, and an operator can conveniently carry out feeding and discharging.

Description

Technical Field

[0001] This utility model relates to the field of magnetic core production, and more specifically, to a magnetic core drilling device. Background Technology

[0002] A magnetic core is a sintered magnetic metal oxide composed of various iron oxide mixtures. Manganese-zinc ferrite and nickel-zinc ferrite are typical core materials. Manganese-zinc ferrite features high permeability and high flux density, and also exhibits low loss. During production, magnetic cores require drilling to achieve a specific shape. Existing core drilling equipment fixes the core in place and drills it using a high-speed rotating drill bit. During drilling, friction generates spatter at the drilling site. To ensure drilling accuracy, operators must constantly monitor the drilling progress. Because operators are close to the core being processed, this spatter can easily enter their eyes and cause injury. Utility Model Content

[0003] 1. Technical problems to be solved

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a magnetic core drilling device that can automatically drive the rear protective plate to rotate to the front during the downward movement of the drill bit, so as to block the splashing material and prevent injury to the operator.

[0005] 2. Technical Solution

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A magnetic core drilling device includes a worktable with a magnetic core fixing seat at the center of its upper surface. A column is vertically fixed to the rear top of the worktable, and a lifting motor is fixed to the top of the column. The lifting motor has a threaded rod. A crossbeam is slidably mounted on the front side of the column and screwed onto the threaded rod. A control motor is fixed above the end of the crossbeam, and a drill bit is mounted downwards at the output end of the control motor. The drill bit is positioned directly above the magnetic core fixing seat. A rotating ring is rotatably mounted on the upper surface of the worktable, and the magnetic core fixing seat is placed inside the rotating ring. The rotating ring is flush with the upper surface of the worktable. A protective plate is provided on one side of the upper surface of the rotating ring. The protective plate has a semi-circular cross-section and a transparent glass window embedded in its surface. Grooves are evenly formed on the lower part of the outer surface of the rotating ring.

[0008] Furthermore, a support platform is provided on the front side of the column, the support platform is placed below the crossbeam, and a sliding rod is vertically passed through the surface of the support platform. An adjustable extrusion head is installed on the top of the sliding rod by bolts.

[0009] Furthermore, a spring is fitted onto the surface of the slide rod, with the top of the spring contacting the lower end face of the adjustable extrusion head and the bottom of the spring contacting the upper surface of the support platform.

[0010] Furthermore, a sliding groove is provided horizontally on the upper surface of the worktable, the sliding groove is placed between the column and the rotating ring, and a slider is slidably installed inside the sliding groove.

[0011] Furthermore, a lower extension plate is provided at the bottom of the slide bar, and a connecting rod is mounted on the surface of the lower extension plate by a pin. The end of the connecting rod away from the lower extension plate is mounted on the surface of the slider by a pin.

[0012] Furthermore, an installation cavity is provided on the inner side of the workbench, which is located between the rotating ring and the slide groove. A drive shaft is vertically mounted on the surface of the installation cavity via a bearing. Gear A is mounted above the surface of the drive shaft, and gear B is mounted below the surface of the drive shaft.

[0013] Furthermore, a toothed rod is provided on the front surface of the slider, the toothed rod meshing with gear A, and gear B meshing with tooth groove.

[0014] Furthermore, control keys are symmetrically arranged on the front side of the workbench.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of this utility model are as follows: This utility model provides a magnetic core drilling device, which controls the drill bit to move up and down by a motor. During the downward movement of the drill bit, the pressure head can be pressed down by the downward movement of the crossbeam. Then, the internal structure drives the rotating ring to rotate, so that the protective plate rotates to the front side, which can isolate the splashing material and protect the workers. Conversely, when the drill bit is lifted, the protective plate rotates to the rear side, so that the front side of the fixed seat is open, which is convenient for the operator to load and unload materials. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the right-side structure of this utility model;

[0019] Figure 3 For the present utility model Figure 2 A magnified structural diagram of area A;

[0020] Figure 4 For the present utility model Figure 2 A magnified structural diagram of region B.

[0021] The following are the labels in the diagram: 1. Workbench; 2. Control key; 3. Rotary ring; 301. Gear groove; 4. Protective plate; 5. Transparent glass window; 6. Magnetic core fixing seat; 7. Column; 8. Lifting motor; 9. Crossbeam; 10. Control motor; 11. Drill bit; 12. Support platform; 13. Slide rod; 14. Adjustable extrusion head; 15. Spring; 16. Lower extension plate; 17. Connecting rod; 18. Slide groove; 19. Slider; 191. Gear bar; 20. Mounting cavity; 21. Drive shaft; 22. Gear A; 23. Gear B. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Example:

[0024] Please see Figure 1 and Figure 2 As shown, a magnetic core drilling device includes a worktable 1, a magnetic core fixing seat 6 is provided at the center of the upper surface of the worktable 1, a column 7 is vertically fixed to the rear top of the worktable 1, control keys 2 are symmetrically arranged on the front side of the worktable 1, a lifting motor 8 is fixed to the top of the column 7, the lifting motor 8 is provided with a threaded rod, a crossbeam 9 is slidably installed on the front side of the column 7, the control keys 2 on the front side control the start and stop of the lifting motor 8, thereby controlling the height of the crossbeam 9, the crossbeam 9 is screwed onto the threaded rod, a control motor 10 is fixed above the end of the crossbeam 9, a drill bit 11 is installed downward at the output end of the control motor 10, and the drill bit 11 is placed... Below the crossbeam 9, the drill bit 11 is placed directly above the magnetic core fixing seat 6. A rotating ring 3 is rotatably installed on the upper surface of the worktable 1. The magnetic core fixing seat 6 is placed inside the rotating ring 3. The rotating ring 3 is flush with the upper surface of the worktable 1. A protective plate 4 is provided on one side of the upper surface of the rotating ring 3. The protective plate 4 has a semi-circular cross-section. When the crossbeam 9 is at the uppermost end of the stroke, the protective plate 4 is placed at the rearmost side. Conversely, when the crossbeam 9 is at the lowermost end of the stroke, the protective plate 4 is placed at the frontmost side to achieve a protective effect. A transparent glass window 5 is embedded on the surface of the protective plate 4 so as not to affect the operator's observation of the drilling situation inside while providing protection.

[0025] Please refer to Figures 2-4As shown, a support platform 12 is provided on the front side of the column 7. The support platform 12 is located below the crossbeam 9. A slide rod 13 is vertically passed through the surface of the support platform 12. The slide rod 13 can slide vertically. An adjustable extrusion head 14 is installed on the top of the slide rod 13 by bolts, so that the height of the adjustable extrusion head 14 can be controlled to adjust the distance of the linkage of the parts during debugging. A spring 15 is sleeved on the surface of the slide rod 13. The top of the spring 15 contacts the lower end face of the adjustable extrusion head 14, and the bottom of the spring 15 contacts the upper surface of the support platform 12. The diameter of the adjustable extrusion head 14 is larger than that of the slide rod 13 so as to provide a force point for the top of the spring 15. At the same time, the elastic force of the spring 15 makes the slide rod 13 and the adjustable extrusion head 14 positioned at the top when no external force is applied.

[0026] Please refer to Figures 1-4 As shown, a sliding groove 18 is horizontally opened on the upper surface of the workbench 1. The sliding groove 18 is placed between the column 7 and the rotating ring 3. A slider 19 is slidably installed inside the sliding groove 18. The slider 19 can only slide horizontally along the trajectory of the sliding groove 18. A lower extension plate 16 is provided at the bottom of the slide rod 13. A connecting rod 17 is installed on the surface of the lower extension plate 16 through a pin. One end of the connecting rod 17 away from the lower extension plate 16 is installed on the surface of the slider 19 through a pin. The connecting rod 17 is inclined. When the slide rod 13 moves down, it can drive the slider 19 to slide horizontally.

[0027] Please refer to Figures 2-4 As shown, the outer surface of the rotating ring 3 is uniformly provided with toothed grooves 301. The inner side of the worktable 1 is provided with a mounting cavity 20, which is placed between the rotating ring 3 and the slide groove 18. The surface of the mounting cavity 20 is vertically mounted with a transmission shaft 21 through a bearing. A gear A22 is mounted above the surface of the transmission shaft 21, and a gear B23 is mounted below the surface of the transmission shaft 21. A rack 191 is provided on the front surface of the slider 19. The rack 191 meshes with the gear A22, and the gear B23 meshes with the toothed grooves 301. The size of the gear A22 is smaller than that of the gear B23 to increase the stroke of the rotating ring 3 so that it can rotate 180° in a single movement.

[0028] Working principle: The lifting motor 8 at the top is started by controlling the control key 2 on the front side. The threaded rod at the end of the motor rotates, which in turn controls the upward movement of the crossbeam 9 and the control motor 10. Due to the presence of the spring 15, the adjustable extrusion head 14 is positioned at the top of its stroke. Then, the connecting rod 17 keeps the position of the slider 19 stable. At this time, the protective plate 4 is placed on the rear side to fix the magnetic core to be processed on the surface of the magnetic core fixing seat 6, and to keep the hole to be drilled on the magnetic core directly below the drill bit 11. The control motor 10 is started to drive the drill bit 11 to rotate at high speed, and the crossbeam 9 is controlled to move downward to drill the hole in the magnetic core below. During the downward movement of the crossbeam 9, the adjustable extrusion head 14 can be moved downward, which in turn drives the slide bar 13 to slide down. The connecting rod 17 pushes the slider 19 to one side, which in turn causes the rack 191 to slide laterally. Through its meshing with the gear A22, the transmission shaft 21 is driven to rotate, which in turn drives the gear B23 to rotate, thereby controlling the rotating ring 3 to rotate 180 degrees. This places the protective plate 4 in front, providing protection during the drilling process. After drilling is completed, the crossbeam 9 is lifted, and the adjustable extrusion head 14 is no longer extruded. The stored force of the spring 15 allows the device to return to its original position.

[0029] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A magnetic core drilling device, comprising a workbench (1), a magnetic core fixing seat (6) is arranged at the center of the upper surface of the workbench (1), and a column (7) is vertically fixed on the rear side of the top of the workbench (1), characterized in that: A lifting motor (8) is fixed on the top of the column (7), and the lifting motor (8) is provided with a threaded rod. A crossbeam (9) is slidably installed on the front side of the column (7), and the crossbeam (9) is screwed on the threaded rod. A control motor (10) is fixed above the end of the crossbeam (9). A drill bit (11) is installed downward at the output end of the control motor (10), and the drill bit (11) is placed directly above the magnetic core fixing seat (6). A rotating ring (3) is rotatably installed on the upper surface of the workbench (1), and the magnetic core fixing seat (6) is placed on the inner side of the rotating ring (3). The rotating ring (3) is flush with the upper surface of the workbench (1). A protective plate (4) is provided on one side of the upper surface of the rotating ring (3), and the cross section of the protective plate (4) is semicircular. A transparent glass window (5) is inlaid on the surface of the protective plate (4), and tooth grooves (301) are evenly opened below the outer surface of the rotating ring (3).

2. A magnetic core drilling device according to claim 1, characterized in that: A support platform (12) is arranged on the front side of the column (7), and the support platform (12) is placed below the crossbeam (9). A sliding rod (13) vertically penetrates the surface of the support platform (12), and an adjustable extrusion head (14) is installed on the top of the sliding rod (13) by bolts.

3. A magnetic core drilling device according to claim 2, characterized in that: A spring (15) is sleeved on the surface of the slide rod (13), the top of the spring (15) contacts the lower end surface of the adjustable extrusion head (14), and the bottom of the spring (15) contacts the upper surface of the support platform (12).

4. A magnetic core drilling device according to claim 3, characterized in that: A slide groove (18) is transversely provided on the upper surface of the workbench (1), and the slide groove (18) is placed between the column (7) and the rotating ring (3). A sliding block (19) is slidably installed inside the slide groove (18).

5. A magnetic core drilling device according to claim 4, characterized in that: A lower extension plate (16) is provided at the bottom of the slide bar (13), a connecting rod (17) is installed on the surface of the lower extension plate (16) via a pin, and one end of the connecting rod (17) away from the lower extension plate (16) is installed on the surface of the slide block (19) via a pin.

6. A magnetic core drilling device according to claim 5, characterized in that: An installation cavity (20) is provided on the inner side of the workbench (1), and the installation cavity (20) is placed between the rotating ring (3) and the slide groove (18). A transmission shaft (21) is vertically installed on the surface of the installation cavity (20) via a bearing, a gear A (22) is installed above the surface of the transmission shaft (21), and a gear B (23) is installed below the surface of the transmission shaft (21).

7. A magnetic core drilling device according to claim 6, characterized in that: A gear rod (191) is provided on the front surface of the slider (19); the gear rod (191) and the gear A (22) are meshed with each other; and the gear B (23) and the tooth groove (301) are meshed with each other.

8. A magnetic core drilling device according to claim 1, characterized in that: Control keys (2) are symmetrically arranged on the front side of the workbench (1).

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