Magnetic drill with auxiliary fixing structure

By designing a cross-shaped fixing bracket and a suction cup fixing device on the magnetic drill, the problem of unstable positioning of the magnetic drill when the power line is disconnected is solved, and stable fixing is achieved when the magnetic base loses its magnetism, thus avoiding drill bit breakage and substandard processing.

CN223932636UActive Publication Date: 2026-02-24SHANDONG HUAJIN CONSTRUCTION ENGINEERING CO LTD
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Patent Information

Application Number
CN202520084613.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-14
Publication Date
2026-02-24
Estimated Expiration
2035-01-14

AI Technical Summary

Technical Problem

Existing magnetic drills are unstable in positioning when the power supply is disconnected, which can lead to drill bit breakage or defective products.

Method used

A magnetic drill with an auxiliary fixing structure was designed, including a cross-shaped fixing frame and a suction cup fixing device. The cross-shaped fixing frame is fixedly connected to the magnetic drill body, and after being electrically attracted by the magnetic base, it is further fixed to the metal workpiece by the suction cup fixing device to ensure stable positioning.

Benefits of technology

Even when the magnetic base loses its magnetism, the suction cup fixing device can still remain stable, preventing drill bit breakage and machining defects, and ensuring the continuity and stability of the machining process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The magnetic drill with the auxiliary fixing structure comprises a magnetic drill body, the bottom of the magnetic drill body is fixedly connected with a magnetic base, the two sides of the magnetic drill body are fixedly connected with a cross-shaped fixing frame, the center of the cross-shaped fixing frame is fixedly connected with a supporting rod, and the free end of the supporting rod is fixedly connected with the middle of a connecting rod. The two ends of the connecting rod are fixedly connected with suction cup fixing devices. The magnetic drill is simple in structure, the magnetic base is attracted to the metal part after being powered on and then attracted to the metal part through the suction cup fixing device, auxiliary positioning of the magnetic drill is achieved, and it is guaranteed that the magnetic drill is unstable in positioning due to the fact that a circuit is damaged or the circuit is disconnected accidentally, and the magnetic base loses magnetic force; and the drill bit is broken or a processed product is unqualified.
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Description

Technical Field

[0001] This utility model relates to the field of magnetic drill equipment technology, specifically a magnetic drill with an auxiliary fixing structure. Background Technology

[0002] A magnetic drill, also known as a magnetic base drill, magnetic drill, or magnetic iron drill, works by using an electromagnet in the base of the drill to generate a magnetic field after the power is turned on, which attracts the drill bit to the steel workpiece. Then, the high-speed rotation of the magnetic drill motor drives the drill bit to drill holes or thread the steel plate.

[0003] Magnetic drills are now widely used. However, since magnetic drills are generally positioned by magnetic base adsorption to metal, if the power supply is accidentally disconnected, the magnetic drill may have insufficient positioning stability, causing the equipment to detach from the processing point, resulting in drill bit breakage or unqualified processed products. Utility Model Content

[0004] To address the aforementioned technical problems, the purpose of this utility model is to provide a magnetic drill with an auxiliary fixing structure, thereby solving the problems existing in the prior art. The specific technical solution is as follows:

[0005] A magnetic drill with an auxiliary fixing structure includes a magnetic drill body, a magnetic base fixedly connected to the bottom of the magnetic drill body, cross fixing frames fixedly connected to both sides of the magnetic drill body, a support rod fixedly connected to the center of the cross fixing frames, the free end of the support rod fixedly connected to the middle of a connecting rod, and suction cup fixing devices fixedly connected to both ends of the connecting rod.

[0006] Preferably, the suction cup fixing device includes a square box, one side of which is fixedly connected to the end of a connecting rod, a slider is slidably connected inside the square box, a fixing rod is fixedly connected to the bottom of the slider, and a suction cup is fixedly connected through the bottom of the square box; a screw is rotatably connected to the top of the square box, a handle is fixedly connected to the end of the screw located outside the square box, and a disc is fixedly connected to the end of the screw located inside the square box.

[0007] Furthermore, a positioning nut is threaded onto the screw, and the positioning nut is located on the outside of the square box.

[0008] Preferably, the magnetic drill body is provided with a groove corresponding to the cross-shaped fixing bracket.

[0009] Preferably, the cross-shaped fixing bracket has screw holes in the four directions of up, down, left, and right, and the cross-shaped fixing bracket is fixedly connected to the magnetic drill body by bolts passing through the screw holes.

[0010] Furthermore, the number of screw holes is two.

[0011] Furthermore, the handle is a lever handle or a ring handle.

[0012] This utility model has a simple structure. After the magnetic base is powered on, it is attracted to the metal material. Then, it is attracted to the metal material through the suction cup fixing device to realize the auxiliary positioning of the magnetic drill. This ensures that if the circuit is damaged or accidentally disconnected, the magnetic base will lose its magnetism, which will cause the magnetic drill to be unstable in positioning, and thus lead to the drill bit breaking or the processed product being unqualified. Attached Figure Description

[0013] Figure 1 This is a front view of a magnetic drill with an auxiliary fixing structure according to the present invention.

[0014] Figure 2 This is a schematic diagram of the suction cup fixing device of this utility model.

[0015] Figure 3 This is a schematic diagram of the internal structure of the suction cup fixing device of this utility model.

[0016] Figure 4 This is a structural schematic diagram of the cross-shaped fixing bracket of this utility model.

[0017] In the diagram: 1. Magnetic drill body; 2. Magnetic base; 3. Cross bracket; 4. Support rod; 5. Connecting rod; 6. Square box; 7. Slider; 8. Fixing rod; 9. Suction cup; 10. Screw; 11. Handle; 12. Disc; 13. Positioning nut; 14. Screw hole. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figure 1-4 As shown, a magnetic drill with an auxiliary fixing structure includes a magnetic drill body 1, a magnetic base 2 fixedly connected to the bottom of the magnetic drill body 1, cross-shaped fixing frames 3 fixedly connected to both sides of the magnetic drill body 1, a support rod 4 fixedly connected to the center of the cross-shaped fixing frames 3, a free end of the support rod 4 fixedly connected to the middle of a connecting rod 5, and suction cup fixing devices fixedly connected to both ends of the connecting rod 5. The magnetic base 2 is used to electro-attract metal workpieces, and the suction cup fixing devices are used to assist in positioning after electro-attraction on the magnetic base 2, avoiding unstable positioning due to accidental power failure or circuit faults, which could lead to drill bit breakage or defective processed products.

[0020] The suction cup fixing device includes a square box 6, one side of which is fixedly connected to the end of a connecting rod 5. A slider 7 is slidably connected inside the square box 6, and a fixing rod 8 is fixedly connected to the bottom of the slider 7. The fixing rod 8 passes through the bottom of the square box 6 and is fixedly connected to a suction cup 9. A screw 10 is rotatably connected to the top of the square box 6, and a handle 11 is fixedly connected to the end of the screw 10 located outside the square box 6. The handle 11 is a rod-type handle or a ring-type handle. A disc 12 is fixedly connected to the end of the screw 10 located inside the square box 6. When working on a metal workpiece, first wipe its surface clean. After the magnetic base 2 is powered on and positioned, manually rotate the handle 11. The disc 12 then presses the slider 7 downward, causing the suction cup 9 to adhere tightly to the metal workpiece and squeezing out the air inside the suction cup 9, thus firmly adhering it to the metal workpiece. The disc 12 has a larger contact area with the slider 7, making the slider 7 slide more stably and reliably.

[0021] A positioning nut 13 is threaded onto the screw 10, and the positioning nut 13 is located on the outside of the square box 6. After the suction cup 9 is firmly attached to the metal workpiece, the position of the positioning nut 13 is adjusted so that it is tightly attached to the upper surface of the square box 6 to position the vertical displacement of the screw 10 and prevent loosening during operation.

[0022] The magnetic drill body 1 has a groove corresponding to the cross-shaped fixing bracket 3. The cross-shaped fixing bracket 3 has two screw holes 14 in each of the four directions (up, down, left, and right). The cross-shaped fixing bracket 3 is fixedly connected to the magnetic drill body 1 by bolts passing through the screw holes 14. The cross-shaped fixing bracket 3 is installed in the groove, making disassembly convenient and not affecting the aesthetics. Using two bolts to fix the cross-shaped fixing bracket 3 to the magnetic drill body 1 makes the fixation more secure. Furthermore, using the cross-shaped fixing bracket 3 for fixing greatly reduces the shaking that occurs during processing after the magnetic base 2 loses its magnetism, ensuring continuous operation of the processing.

[0023] The working principle of this invention is as follows: After the magnetic drill body 1 is powered on, the magnetic base 2 adheres to the metal workpiece. Then, the handle 11 is manually rotated, causing the screw 10 to move the disc 12 downwards. The disc 12 contacts the slider 7 and presses it downwards, squeezing out the air from the suction cup 9, thus firmly adhering the suction cup 9 to the metal workpiece. If, during the processing, the switch is accidentally touched, disconnecting the circuit, or if a fault occurs in the internal circuitry of the magnetic drill body 1, causing the magnetic base 2 to lose power, the suction cup 9 will still firmly adhere to the metal workpiece, thus fixing the magnetic drill and not affecting normal operation. After completing this operation, the operator can inspect and repair the magnetic drill.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A magnetic drill with an auxiliary fixing structure, characterized in that, The device includes a magnetic drill body, a magnetic base fixedly connected to the bottom of the magnetic drill body, cross-shaped fixing frames fixedly connected to both sides of the magnetic drill body, a support rod fixedly connected to the center of the cross-shaped fixing frames, the free end of the support rod fixedly connected to the middle of a connecting rod, and suction cup fixing devices fixedly connected to both ends of the connecting rod.

2. A magnetic drill with an auxiliary fixing structure according to claim 1, characterized in that, The suction cup fixing device includes a square box, one side of which is fixedly connected to the end of a connecting rod. A slider is slidably connected inside the square box, and a fixing rod is fixedly connected to the bottom of the slider. The fixing rod passes through the bottom of the square box and is fixedly connected to a suction cup. A screw is rotatably connected to the top of the square box, and a handle is fixedly connected to the end of the screw located outside the square box. A disc is fixedly connected to the end of the screw located inside the square box.

3. A magnetic drill with an auxiliary fixing structure according to claim 2, characterized in that, A positioning nut is threaded onto the screw, and the positioning nut is located on the outside of the square box.

4. A magnetic drill with an auxiliary fixing structure according to claim 1, characterized in that, The magnetic drill body is provided with a groove corresponding to the cross-shaped fixing bracket.

5. A magnetic drill with an auxiliary fixing structure according to claim 1, characterized in that, The cross-shaped fixing bracket has screw holes in the four directions of up, down, left, and right. The cross-shaped fixing bracket is fixedly connected to the magnetic drill body by bolts passing through the screw holes.

6. A magnetic drill with an auxiliary fixing structure according to claim 5, characterized in that, The number of screw holes is 2.

7. A magnetic drill with an auxiliary fixing structure according to claim 2, characterized in that, The handle is either a lever handle or a ring handle.