Water-cooled electric hole opening machine

Abstract

The utility model provides a kind of electric tapping machine of water cooling, including the support plate for driving drill bit vertical reciprocating motion, and the central axis of drill bit has included angle with the central axis of support plate, and main water pipe for carrying out water cooling to drill bit is connected on support plate, and main water pipe follows support plate synchronous motion.This device is easy to operate, can be better adsorbed on the surface of smooth material such as glass, ceramic tile, adopts the mode of water cooling cooling block, high efficiency, can also prolong the service life of drill bit, and can make tapping work more safe and reliable, and the quality of tapping is better.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a water-cooled electric drilling machine. Background Technology

[0002] An electric hole drill is a portable or stationary tool that uses electricity to create circular holes in hard materials (such as metal, concrete, ceramic tile, glass, stone, etc.) through rotary cutting or grinding. Its core principle is to use a motor to drive a specialized drill bit (such as a diamond drill bit, alloy drill bit, or twist drill bit) to rotate at high speed, combined with cooling or impact functions, to achieve efficient and precise drilling operations.

[0003] Patent CN 221538172 U discloses an electric drilling machine, including a base plate, a drilling mechanism on the top of the base plate, and a clamping mechanism on the bottom of the base plate. The drilling mechanism includes a motor, a locking nut, a drill bit, a soft rubber handle one, a soft rubber handle two, a fixing block, and a guide post. The bottom of the motor is fixedly connected to the inside of the fixing block, the upper surface of the locking nut is fixedly connected to the output end of the motor, the top of the drill bit is fixedly connected to the bottom of the locking nut, the soft rubber handle one and the soft rubber handle two are fixedly connected to the two sides of the fixing block, and the guide post is fixedly connected to the bottom of the fixing block.

[0004] However, the device also has the following problems: when drilling holes on smooth surfaces such as glass and ceramic tiles, it cannot be fixed well to the material surface and cannot complete the drilling work well. In addition, the straight up and down drill bit causes excessive wear when drilling holes in hard materials. Utility Model Content

[0005] To address the problems existing in the prior art, a water-cooled electric drilling machine is provided. This device is easy to operate, can adhere well to the surface of smooth materials such as glass and ceramic tiles, and uses water cooling to cool the block, resulting in high efficiency, extended drill bit lifespan, safer and more reliable drilling operations, and better drilling quality.

[0006] The technical solution adopted by this utility model to solve its technical problem is: This utility model proposes a water-cooled electric drilling machine, including a support plate for driving the drill bit to reciprocate vertically, the central axis of the drill bit and the central axis of the support plate having an angle, and a main water pipe for water cooling the drill bit connected to the support plate, the main water pipe moving synchronously with the support plate.

[0007] Preferably, it also includes a bracket, which is fixedly connected to a plurality of vertically arranged guide shafts, and the support plate and the guide shafts are slidably connected.

[0008] Preferably, the bracket is connected to a feed motor, the feed motor is connected to a lead screw, the lead screw is fitted with a lead screw nut, and the lead screw nut is fixedly connected to the support plate.

[0009] Preferably, the bracket is fixedly connected to a main water pump, and the support plate is connected to a main water pipe through a connector. The main water pump can pump water from the water tank into the main water pipe and then spray it out.

[0010] Preferably, the bracket is fixedly connected to a sub-pump, and the support plate is connected to a sub-pipe via a connector. The sub-pump can pump water from the water tank into the sub-pipe and then spray it out. The main pump and the sub-pump are at different heights.

[0011] Preferably, the bracket is connected to a current detection module for detecting the magnitude of the feed motor current. The current detection module, the main water pump, and the sub-water pump are connected to a controller. The current detection module can adjust the water spray volume of the main water pump and the sub-water pump.

[0012] Preferably, the bracket is connected to a suction cup holder, and a suction cup is provided inside the suction cup holder.

[0013] Preferably, the bracket is slidably connected to a vertically moving pull rod, one end of which is connected to the suction cup, and the other end of which is rotatably connected to a handle that slides in contact with the bracket.

[0014] Preferably, the rotation of the handle can cause the pull rod to rise, thereby creating a vacuum negative pressure zone between the suction cup and the object surface.

[0015] Preferably, the support plate is fixedly connected to a spindle motor, the spindle motor is connected to a drill chuck, and the drill chuck is detachably connected to the drill bit.

[0016] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model is equipped with a lead screw, which drives the drill bit to descend slowly. The use of a lead screw makes the movement of the drill bit more stable, reliable in self-locking, easier to control the stroke, and has high control precision. It is also easy to maintain and has a long service life. At the same time, when the drill bit moves, it can drive the water pipe to move synchronously. The water cooling method is highly efficient, which can also extend the service life of the drill bit, make the drilling work safer and more reliable, and improve the drilling quality.

[0017] 2. This utility model is equipped with a drill bit with an inclination angle. When drilling into the surface of a hard-glazed full-porcelain ceramic tile, the contact area of ​​the drill bit changes from small to large at the moment of contact with the surface of the full-porcelain ceramic tile, from point to surface, making drilling easier and increasing the service life of the drill bit. In addition, the tip of the inclination angle can form a micro-notch, which is conducive to the positioning of the drill bit. At the same time, the coolant can be better carried in by the formed wedge-shaped surface, and the chip removal space is increased, the chipping is smaller, and the hole is more beautiful.

[0018] 3. This utility model is equipped with a current detection module, which monitors the motor's operating current in real time. If drilling becomes difficult, the current will increase. When the current reaches the set value, the feed motor will stop, stopping the feed and turning the hard edge of the drill bit into self-wearing, thus preventing damage to the drill bit. The sub-water pump will be turned on to increase the water flow, while the drill bit continues drilling, effectively reducing drill bit wear, increasing drilling speed, protecting the motor and battery, and achieving a balance between high efficiency and safety. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This utility model is an integral three-dimensional Figure 1 ; Figure 2 This utility model is an integral three-dimensional Figure 2 ; Figure 3 This is an overall sectional view of the present invention; Figure 4 This is an overall side view of the present invention.

[0020] Explanation of reference numerals in the attached figures: 1. Main water pipe; 2. Suction cup seat; 3. Suction cup; 4. Main water pump; 5. Bracket; 6. Support plate; 7. Guide shaft; 8. Coupling; 9. Current detection module; 10. Battery; 11. Handle; 12. Feed motor; 13. Lead screw; 14. Lead nut; 15. Spindle motor; 16. Reducer; 17. Sub-water pipe; 18. Drill chuck; 19. Drill bit; 20. Connector; 21. Knob; 22. Pull rod; 23. Feed switch; 24. Spindle switch; 25. Sub-water pump. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0022] like Figures 1-4 As shown, this embodiment proposes a water-cooled electric drilling machine, including a support plate 6 for driving the drill bit 19 to reciprocate vertically. The support plate 6 is fixedly connected to a spindle motor 15, the spindle motor 15 is connected to a reducer 16, the reducer 16 is connected to a drill chuck 18, and the drill chuck 18 is detachably connected to the drill bit 19.

[0023] There is an angle between the central axis of the drill bit 19 and the central axis of the support plate 6. The angle can be 2-3°. This angle can be formed by the installation of the drill bit 19 itself, the drill chuck 18, or the tilt of the spindle motor 15. Different specifications of drill bits 19 and spindle motor 15 can be replaced by the drill chuck 18. The reducer 16 transforms the high-speed, low-torque spindle motor 15 into a low-speed, high-torque output shaft, which better meets the working conditions of slow, stable, and powerful drilling of tiles and glass.

[0024] When drilling holes in the surface of hard-glazed ceramic tiles, the contact area of ​​drill bit 19 changes from small to large the moment it contacts the surface, making drilling easier and increasing the service life of drill bit 19. The angled tip can form a micro-notch, which is beneficial for positioning of drill bit 19. At the same time, the coolant can be better carried in by the formed wedge-shaped surface, and the chip removal space is increased, resulting in smaller chipping and a more aesthetically pleasing hole.

[0025] The support plate 6 is connected to a main water pipe 1 for water cooling of the drill bit 19. The main water pipe 1 moves synchronously with the support plate 6. The bracket 5 is fixedly connected to a main water pump 4. The support plate 6 is connected to the main water pipe 1 through a connector 20. The main water pump 4 can pump water from the water tank into the main water pipe 1 and then spray it out. The water tank is placed on one side, thereby reducing the overall weight of the bracket 5.

[0026] It also includes a bracket 5, which is fixedly connected to several vertically arranged guide shafts 7. The support plate 6 and the guide shafts 7 are slidably connected. There are two support plates 6 and three guide shafts 7, so as to better support the support plates 6. The two support plates 6 are fixedly connected by a fixed sleeve. The guide shafts 7 are located in the fixed sleeve and can slide freely in the fixed sleeve.

[0027] The bracket 5 is connected to the feed motor 12, which is connected to the lead screw 13 via the coupling 8. The lead screw 13 is fitted with a lead screw nut 14, which is fixedly connected to the support plate 6. When the lead screw 13 rotates, it can move the lead screw nut 14 vertically, thereby driving the support plate 6 to reciprocate vertically, thus realizing the feed of the drill bit 19.

[0028] The lead screw 13 is rotatably connected to one side of the bracket 5, and the other side of the bracket 5 is connected to the battery 10. The battery 10 is used to power the entire device. At the same time, the lead screw 13 is located between the battery 10 and the drill bit 19. The battery 10 can also act as a counterweight to make the weight distribution of the bracket 5 more even, thus facilitating the drilling work. The battery 10 can also be replaced with a 220V power supply with a transformer.

[0029] The bracket 5 is fixedly connected to the sub-water pump 25, and the support plate 6 is connected to the sub-water pipe 17 through the connector 20. The sub-water pump 25 can pump water from the water tank into the sub-water pipe 17 and then spray it out. The sub-water pipe 17 and the main water pipe 1 are respectively set on both sides of the drill bit 19, and the sub-water pipe 17 and the main water pipe 1 have different heights and different angles, so as to better cool the drill bit 19 with water.

[0030] The bracket 5 is connected to a current detection module 9 for detecting the current of the feed motor 12. The current detection module 9, the main water pump 4, and the sub-water pump 25 are connected to a controller. The current detection module 9 can feed back the detected current to the controller, which controls the main water pump 4 and the sub-water pump 25, thereby adjusting the water spray volume of the main water pipe 1 and the sub-water pipe 17.

[0031] The core logic of the current detection module 9 is to collect the working current signal of the feed motor 12 in real time, convert it into an electrical signal that the controller can recognize through signal processing, and then the controller judges the load status of the feed motor 12 according to the preset threshold, and finally triggers the corresponding protection and adjustment actions. The current detection module 9 includes a current sensor, a signal processing circuit and an analog-to-digital conversion module.

[0032] A Hall current sensor can be used to detect the magnitude of the current. The signal processing circuit processes the detected signal, including filtering, amplification, and linear correction. The adjusted signal is then converted into a digital signal by an analog-to-digital converter and transmitted to the controller. When an abnormality is detected, the motor load increases and the current rises. If the current reaches the preset threshold, the corresponding action is triggered. When the current drops to the normal range, normal operation resumes.

[0033] The current detection module 9 monitors the operating current of the feed motor 12 in real time. If drilling becomes difficult, the current will increase. When the current reaches the set value, the feed motor 12 will stop and stop feeding, turning the hard edge of the drill bit 19 into self-wearing of the drill bit, thus preventing damage to the drill bit 19. The sub-water pump 25 will be turned on to increase the water flow. At the same time, the drill bit 19 will continue drilling, effectively reducing drill bit wear, increasing drilling speed, protecting the motor and battery, and achieving a balance between high efficiency and safety.

[0034] The connector 20 can be made of iron wire, etc. The iron wire facilitates the disassembly and fixing of the water pipe, making operation convenient and allowing for fine adjustment of the water pipe position. It is also easy to install, low in cost, and provides a certain amount of room for the water pipe to move. It can better absorb the high-frequency vibration of the drill bit, playing a role in vibration reduction and buffering. At the same time, it can also act as a fuse. If the water pipe shakes significantly, the iron wire will break first to prevent the water pipe from breaking.

[0035] The bracket 5 is also connected to a knob 21, a feed switch 23 and a spindle switch 24. The knob 21 is used to control the rotation speed of the feed motor 12, the feed switch 23 is used to control the start, stop and forward / reverse rotation of the feed motor 12, and the spindle switch 24 is used to control the start and stop of the spindle motor 15.

[0036] The bracket 5 is connected to the suction cup seat 2, and the suction cup 3 is installed inside the suction cup seat 2. The suction cup 3 is made of silicone rubber or nitrile rubber and has the ability to deform. The suction cup seat 2 is made of high-strength aluminum alloy or engineering plastic, which takes into account both lightweight and anti-deformation ability.

[0037] The bracket 5 is slidably connected to a vertically moving pull rod 22. One end of the pull rod 22 is connected to the suction cup 3, and the other end of the pull rod 22 is rotatably connected to a handle 11 that slides in contact with the bracket 5. The end of the pull rod 22 near the bracket 5 has a protrusion. This protrusion enables the handle 11 to rotate, which in turn drives the pull rod 22 to rise, thereby creating a vacuum negative pressure zone between the suction cup 3 and the surface of the object.

[0038] Using the above method, by forming a vacuum negative pressure zone, the suction cup 3 can be better attached to the ceramic tile and glass surface. The principle is that after the suction cup is tightly attached to the smooth surface, the air between the suction cup and the smooth surface is discharged. By using the vacuum negative pressure principle, the pressure difference is formed by actively discharging the internal air, and atmospheric pressure is used to firmly fix the suction cup to the smooth surface.

[0039] The specific working process is as follows: Align the drill bit 19 with the position to be drilled, and place the suction cup 3 close to the tile or glass. By pressing the handle 11, the pull rope 11 moves the pull rod 22, which causes the suction cup 3 to deform, creating a vacuum negative pressure zone between the suction cup 3 and the tile or glass surface, thus firmly adhering the suction cup 3 to the tile or glass surface. Start the spindle motor 24 and the feed motor 12, and start the main water pump 4 at the same time. Adjust the speed of the feed motor 12 by the knob 21 to start drilling. When the specified depth is reached, control the feed motor 12 to reverse through the feed switch 23 to reset the drill bit 19.

[0040] The current detection module 9 monitors the operating current of the feed motor 12 in real time. If drilling becomes difficult, the current will increase. When the current reaches the set value, the feed motor 12 will stop, stopping the feed and turning the hard edge of the drill bit 19 into self-wearing of the drill bit to avoid damage to the drill bit 19. The sub-water pump 25 will be turned on to increase the water flow. At the same time, the drill bit 19 will continue drilling. When the current drops to the normal range, normal operation will resume.

[0041] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A water-cooled electric drilling machine, comprising a support plate (6) for driving a drill bit (19) to reciprocate vertically, characterized in that, The central axis of the drill bit (19) is at an angle to the central axis of the support plate (6). The support plate (6) is connected to a main water pipe (1) for water cooling of the drill bit (19). The main water pipe (1) moves synchronously with the support plate (6).

2. The water-cooled electric drilling machine according to claim 1, characterized in that, It also includes a bracket (5), which is fixedly connected to several vertically arranged guide shafts (7), and the support plate (6) and the guide shafts (7) are slidably connected.

3. The water-cooled electric drilling machine according to claim 2, characterized in that, The bracket (5) is connected to a feed motor (12), the feed motor (12) is connected to a lead screw (13), the lead screw (13) is fitted with a lead screw nut (14), and the lead screw nut (14) is fixedly connected to the support plate (6).

4. The water-cooled electric drilling machine according to claim 2, characterized in that, The bracket (5) is fixedly connected to the main water pump (4), and the support plate (6) is connected to the main water pipe (1) through the connector (20). The main water pump (4) can pump the water in the water tank into the main water pipe (1) and then spray it out.

5. The water-cooled electric drilling machine according to claim 4, characterized in that, The bracket (5) is fixedly connected to a sub-water pump (25), and the support plate (6) is connected to a sub-water pipe (17) through a connector (20). The sub-water pump (25) can pump water from the water tank into the sub-water pipe (17) and then spray it out. The main water pump (4) and the sub-water pump (25) are at different heights.

6. The water-cooled electric drilling machine according to claim 5, characterized in that, The bracket (5) is connected to a current detection module (9) for detecting the current of the feed motor (12). The current detection module (9), the main water pump (4) and the sub-water pump (25) are connected to a controller. The current detection module (9) can adjust the water spray volume of the main water pump (4) and the sub-water pump (25).

7. The water-cooled electric drilling machine according to claim 2, characterized in that, The bracket (5) is connected to a suction cup seat (2), and a suction cup (3) is provided inside the suction cup seat (2).

8. The water-cooled electric drilling machine according to claim 7, characterized in that, The bracket (5) is slidably connected to a vertically moving pull rod (22). One end of the pull rod (22) is connected to the suction cup (3), and the other end of the pull rod (22) is rotatably connected to a handle (11) that slides in contact with the bracket (5).

9. The water-cooled electric drilling machine according to claim 8, characterized in that, The rotation of the handle (11) can drive the pull rod (22) to rise, thereby creating a vacuum negative pressure zone between the suction cup (3) and the surface of the object.

10. The water-cooled electric drilling machine according to claim 1, characterized in that, The support plate (6) is fixedly connected to the spindle motor (15), the spindle motor (15) is connected to the drill chuck (18), and the drill chuck (18) is detachably connected to the drill bit (19).

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