Portable magnetic drill press

Abstract

The utility model discloses a portable magnetic drill press, which relates to the technical field of magnetic drill presses and comprises a drill body, a lifting frame is arranged on the drill body in a sliding manner, a drill bit is rotatably arranged on the lifting frame, a telescopic liquid bag is fixedly arranged on the drill body, an extrusion plate is fixedly arranged at the top of the telescopic liquid bag, and the extrusion plate is fixedly arranged on the drill body. A screw rod is rotationally arranged on the drill body, the screw rod is in threaded connection with the extrusion plate, and an extrusion mechanism is arranged on the drill body; when a workpiece is drilled, a lifting frame is controlled to control a drill bit to move up and down, when the lifting frame gets close to the workpiece, a toothed plate is driven to move, when the toothed plate moves, a toothed ring is driven to rotate, and then a ratchet column is driven to rotate through a pawl, so that a screw rod drives an extrusion plate to extrude a telescopic liquid bag; and the cutting fluid can be smoothly sprayed to the drill bit through extrusion of the extrusion plate.

Description

Technical Field

[0001] This utility model relates to the field of magnetic drill technology, specifically to a portable magnetic drill. Background Technology

[0002] A magnetic chuck is an electric tool that uses electromagnetic principles to fix itself to a metal surface for drilling operations; it is also known as a magnetic drill or magnetic chuck. It combines an electromagnetic chuck with drilling functionality and is widely used in industrial processing, construction, and installation.

[0003] A magnetic drill mainly consists of an electromagnetic chuck, a drilling device, and a control system. When powered on, the electromagnetic chuck generates a strong magnetic force (usually reaching thousands of Newtons), which firmly fixes the drill on the surface of the metal workpiece, preventing displacement due to vibration during drilling. At the same time, the motor drives the drill bit to rotate at high speed, which, together with the feed mechanism, applies downward pressure to complete high-precision drilling.

[0004] When drilling into steel plates and other components, it is necessary to cool the part of the drill bit that contacts the component. Existing technology usually involves adding a bottle containing cutting fluid to a magnetic drill. When drilling, the valve of the bottle is opened, and the liquid inside the bottle flows from the bottom outlet to the drill bit for cooling, either by gravity or by adding a pump to the drill body. However, when the magnetic drill is attached to the bottom or side wall of the component, the liquid in the cutting fluid bottle will flow in the opposite direction to the outlet or remain horizontal. In this case, neither the weight of the cutting fluid itself nor the pump connected to the bottom outlet can effectively guide the cutting fluid away from the outlet to the drill bit, thus affecting the cooling of the drill bit. Utility Model Content

[0005] The purpose of this invention is to provide a portable magnetic drill to address the aforementioned shortcomings of the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a portable magnetic drill, comprising a drill body, a lifting frame slidably disposed on the drill body, a drill bit rotatably disposed on the lifting frame, a telescopic liquid bladder fixedly disposed on the drill body, a compression plate fixedly disposed on the top of the telescopic liquid bladder, a screw rotatably disposed on the drill body, the screw being threadedly connected to the compression plate, and a compression mechanism disposed on the drill body.

[0007] Preferably, a conduit is fixedly provided at one end of the telescopic liquid bladder near the drill body, and a switch valve is provided at one end of the conduit near the telescopic liquid bladder.

[0008] Preferably, a first bevel gear is fixedly mounted on the top of the screw, a support plate is fixedly mounted on the drill body, a ratchet post is rotatably mounted on the support plate, and a second bevel gear that meshes with the first bevel gear is fixedly mounted on one end of the ratchet post near the first bevel gear.

[0009] Preferably, a fixing ring is fixedly provided on the support plate, a toothed ring is rotatably provided on the fixing ring, a fixing block is fixedly provided on the lifting frame, and a toothed plate that meshes with the toothed ring is fixedly provided on the fixing block.

[0010] Preferably, the toothed ring is provided with multiple pawls.

[0011] Preferably, a throttle is fixedly provided at the end of the ratchet post away from the second bevel gear.

[0012] In the above technical solution, the present invention provides a portable magnetic drill bit with the following beneficial effects: when drilling a workpiece, the drill bit is moved up and down by controlling the lifting frame. When the lifting frame moves closer to the workpiece, it drives the tooth plate to move. When the tooth plate moves, it drives the tooth ring to rotate. Then, the ratchet column is rotated by the pawl, so that the screw drives the extrusion plate to squeeze the telescopic fluid bag. Even if the drill body is adsorbed at the bottom of the workpiece, the cutting fluid can be smoothly sprayed onto the drill bit by the extrusion of the extrusion plate. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the ratchet post provided in an embodiment of the present utility model;

[0016] Figure 3 This is a schematic diagram of the toothed ring provided in an embodiment of the present utility model;

[0017] Figure 4 Provided for the embodiments of this utility model Figure 1 Enlarged view of the structure at point A in the middle.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Drill body; 2. Lifting frame; 201. Drive motor; 202. Fixing block; 3. Drill bit; 4. Telescopic fluid bladder; 5. Squeezing plate; 6. Switch valve; 7. Guide tube; 8. Screw; 9. Guide groove; 10. First bevel gear; 11. Second bevel gear; 12. Racket pinion; 121. Support plate; 13. Throttle; 14. Fixing ring; 15. Gear ring; 16. Gear plate; 17. Pawl; 18. Fluid filling cap. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0021] Please see Figure 1-4 A portable magnetic drill, the technical solution of this utility model includes a drill body 1, a lifting frame 2 slidably mounted on the drill body 1, a drill bit 3 rotatably mounted on the lifting frame 2, a telescopic liquid bladder 4 fixedly mounted on the drill body 1, a compression plate 5 fixedly mounted on the top of the telescopic liquid bladder 4, a screw 8 rotatably mounted on the drill body 1, the screw 8 being threadedly connected to the compression plate 5, and a compression mechanism being provided on the drill body 1; a guide groove 9 is provided on the drill body 1, the end of the compression plate 5 away from the telescopic liquid bladder 4 slides in the guide groove 9, the telescopic liquid bladder 4 is used to hold cutting coolant, the lifting frame 2 slides on the drill body 1, and the lifting frame 2 is controlled to rise and fall by rotating a handwheel, which is prior art and will not be described in detail; the drill bit 3 is rotatably mounted on the lifting frame 2, and a drive motor 201 is fixedly mounted on the lifting frame 2, the output end of the drive motor 201 being fixedly connected to the drill bit 3, and the drill bit 3 is driven by a servo motor. The machine rotates, and then the handwheel is turned to control the lifting frame 2 to move downward, so that the drill bit 3 comes into contact with the workpiece to be processed, and the workpiece is drilled and processed. When the lifting frame 2 moves downward, the screw 8 will be driven to rotate forward through the extrusion mechanism. When the screw 8 rotates forward, it will drive the extrusion plate 5 to move downward. When the extrusion plate 5 moves downward, it will extrude the telescopic liquid bladder 4. The cutting fluid in the telescopic liquid bladder 4 will be sprayed onto the drill bit 3, thereby cooling the rotating drill bit 3. When the magnetic base of the magnetic drill is attached to the bottom of the workpiece, the cutting fluid in the telescopic liquid bladder 4 will flow to the end of the telescopic liquid bladder 4 away from the drill bit 3. At this time, when the lifting frame 2 moves closer to the magnetic base, the extrusion plate 5 will squeeze the cutting fluid in the telescopic liquid bladder 4 towards the end of the telescopic liquid bladder 4 closer to the drill bit 3, and squeeze the cutting fluid out from the outlet near the telescopic liquid bladder 4. Thus, even when the magnetic base drill is attached to the bottom of the workpiece, the cutting fluid can still be sprayed onto the drill bit 3 without affecting the cooling of the drill bit 3.

[0022] Specifically, a conduit 7 is fixedly installed at one end of the telescopic fluid bladder 4 near the drill body 1, and a switch valve 6 is installed at one end of the conduit 7 near the telescopic fluid bladder 4; the conduit 7 is a metal gooseneck tube, and a nozzle is fixedly installed at one end of the conduit 7 near the drill bit 3. The gooseneck tube can be bent arbitrarily and its direction can be determined, so that the end of the gooseneck tube can be adjusted to face the drill bit 3, and the cutting fluid can be sprayed onto the drill bit 3. The switch valve 6 is used to control the opening and closing of the cutting fluid in the gooseneck tube. When it is necessary to cool the drill bit 3, the drive motor 201 is started first to drive the drill bit 3 to rotate, and then the switch valve 6 is opened, the handwheel is turned to drive the lifting frame 2 to approach the workpiece, and the extrusion plate 5 extrudes the telescopic fluid bladder 4 to spray the cutting fluid onto the drill bit 3.

[0023] Specifically, a first bevel gear 10 is fixedly mounted on the top of the screw 8, a support plate 121 is fixedly mounted on the drill body 1, and a ratchet post 12 is rotatably mounted on the support plate 121. A second bevel gear 11, meshing with the first bevel gear 10, is fixedly mounted at the end of the ratchet post 12 closest to the first bevel gear 10. The end of the ratchet post 12 closest to the first bevel gear 10 is cylindrical, and this cylindrical end is rotatably connected to the support plate 121. Multiple ratches are fixedly mounted at the end of the ratchet post 12 furthest from the first bevel gear 10, such as... Figure 3 As shown, when the lifting frame 2 moves closer to one end of the drill bit 3, the moving frame will drive the ratchet column 12 to rotate clockwise. When the ratchet column 12 rotates clockwise, it drives the first bevel gear 10 to rotate through the second bevel gear 11, thereby driving the screw 8 to rotate, and thus controlling the extrusion plate 5 to extrude the telescopic liquid bladder 4.

[0024] Specifically, a fixing ring 14 is fixedly mounted on the support plate 121, and a toothed ring 15 is rotatably mounted on the fixing ring 14. A fixing block 202 is fixedly mounted on the lifting frame 2, and a toothed plate 16 that meshes with the toothed ring 15 is fixedly mounted on the fixing block 202; for example, Figure 2 As shown, the toothed plate 16 is located on the right side of the toothed ring 15, and the fixing block 202 is fixedly mounted on the drive motor 201. When the lifting frame 2 moves up and down, it will also drive the toothed plate 16 to move up and down. When the toothed plate 16 moves, it will drive the toothed ring 15 to rotate. When the toothed ring 15 rotates, it can drive the ratchet column 12 to rotate, thereby driving the screw 8 to rotate.

[0025] Specifically, multiple pawls 17 are fixedly installed inside the toothed ring 15; combined with Figure 3 When the toothed plate 16 moves closer to the drill bit 3, the ratchet 17 and the ratchet column 12 work together to make the toothed plate 16 move downwards and drive the ratchet column 12 to rotate clockwise. This drives the screw 8 to rotate through the second bevel gear 11 and the first bevel gear 10. When the toothed plate 16 moves upwards, the toothed ring 15 rotates through the ratchet 17 and does not drive the ratchet column 12 to rotate. This ensures that each time the lifting frame 2 moves the drill bit 3 closer to the workpiece, the screw 8 rotates and drives the extrusion plate 5 to squeeze the telescopic fluid bladder 4. When the lifting frame 2 returns to its original position, the extrusion plate 5 does not move. This ensures that the cutting fluid in the telescopic fluid bladder 4 is always full, so that each time the lifting frame 2 moves downwards, the fluid in the telescopic fluid bladder 4 is squeezed into the gooseneck tube.

[0026] Specifically, a throttle 13 is fixedly installed at the end of the ratchet post 12 away from the second bevel gear 11; an injection cap 18 is installed on the top of the telescopic liquid bladder 4, such as... Figure 3As shown, the teeth on the toothed plate 16 have a certain number of teeth. When it is necessary to add cutting fluid to the telescopic fluid bladder 4, turn the handwheel to move the lifting frame 2 upward to its limit. At this time, the teeth at the bottom of the toothed plate 16 separate from the toothed ring 15, and the ratchet column 12 can rotate freely. Then, open the filling cap 18. At this time, rotate the ratchet column 12 counterclockwise through the throttle 13. The ratchet column 12 drives the screw 8 to rotate through the second bevel gear 11 and the first bevel gear 10, which in turn drives the pressure plate to move upward, thereby driving the compressed telescopic fluid bladder 4 to reset, making it convenient to inject cutting fluid into the telescopic fluid bladder 4. Then, cover the filling cap 18 to complete the replenishment of cutting fluid.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable magnetic base drill comprising a drill body (1), characterized in that, A lifting frame (2) is slidably mounted on the drill body (1), a drill bit (3) is rotatably mounted on the lifting frame (2), a telescopic liquid bladder (4) is fixedly mounted on the drill body (1), a compression plate (5) is fixedly mounted on the top of the telescopic liquid bladder (4), a screw (8) is rotatably mounted on the drill body (1), the screw (8) is threadedly connected to the compression plate (5), and a compression mechanism is mounted on the drill body (1).

2. A portable magnetic pedestal drill as claimed in claim 1, wherein, The telescopic fluid bladder (4) is fixedly provided with a conduit (7) at one end near the drill body (1), and a switch valve (6) is provided at one end of the conduit (7) near the telescopic fluid bladder (4).

3. A portable magnetic pedestal drill as claimed in claim 2, wherein, A first bevel gear (10) is fixedly installed on the top of the screw (8), a support plate (121) is fixedly installed on the drill body (1), a ratchet column (12) is rotatably installed on the support plate (121), and a second bevel gear (11) that meshes with the first bevel gear (10) is fixedly installed at one end of the ratchet column (12) near the first bevel gear (10).

4. A portable magnetic pedestal drill according to claim 3, wherein A fixing ring (14) is fixedly installed on the support plate (121), and a toothed ring (15) is rotatably installed on the fixing ring (14). A fixing block (202) is fixedly installed on the lifting frame (2), and a toothed plate (16) that meshes with the toothed ring (15) is fixedly installed on the fixing block (202).

5. A portable magnetic pedestal drill as claimed in claim 4, wherein, Multiple pawls (17) are fixedly provided inside the toothed ring (15).

6. A portable magnetic drill according to claim 5, characterized in that, A throttle (13) is fixedly provided at the end of the ratchet post (12) away from the second bevel gear (11).

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