An automatic drilling machine with an auxiliary drill changing mechanism
By automatically tightening and loosening the rotating housing of the electric drill through the auxiliary drill bit changing mechanism, the problem of low efficiency in manual drill bit changing is solved, realizing automated drill bit changing and improving changing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG HUANYU ELECTRONICS TECH CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-06-30
AI Technical Summary
Existing drilling machines require manual replacement of drill bits, and the replacement process requires waiting for the drill to cool down, resulting in low replacement efficiency.
An auxiliary drill changing mechanism is adopted, which uses the first drive cylinder and pressure block to automatically loosen and tighten the rotating shell of the electric drill. By controlling the speed of the electric drill and the power output of the cylinder, the installation and removal of the drill bit are automatically completed.
It reduces the time spent waiting for the drill bit to cool down, improves the efficiency of drill bit replacement, and realizes an automated replacement process.
Smart Images

Figure CN224425808U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drilling machines, and more particularly to an automatic drilling machine with an auxiliary drill changing mechanism. Background Technology
[0002] Currently, drilling machines on the market require manual drill bit replacement. This involves pressing down the corresponding rotating housing of the drill, but the housing is often too hot immediately after use, requiring a waiting period before manual pressure can be applied to tighten it and replace the drill bit. This manual process, requiring both manual pressure to tighten the housing and waiting for the drill to cool down, results in low efficiency. Utility Model Content
[0003] The purpose of this utility model is to overcome the shortcomings of the prior art. This utility model provides an automatic drilling machine with an auxiliary drill changing mechanism. By setting a pressure block and a first driving cylinder, the pressure block is driven by the first driving cylinder to move in the working direction to press against or move away from the rotating shell, thereby realizing the automatic drill changing step, reducing the waiting time for heat dissipation during manual drill changing, and improving the efficiency of drill bit replacement.
[0004] Accordingly, this utility model proposes an automatic drilling machine with an auxiliary drill changing mechanism, the automatic drilling machine with an auxiliary drill changing mechanism includes: a base and an electric drill disposed in the base;
[0005] An auxiliary drill changing mechanism is provided on the base. One end of the auxiliary drill changing mechanism is fixed on the base, and the other end of the auxiliary drill changing mechanism is sleeved on the output end of the electric drill.
[0006] The auxiliary drill changing mechanism includes: a first drive cylinder and a pressure block, the pressure block having a through hole located at a position corresponding to the output end of the electric drill, and the drill bit installed on the electric drill passing through the through hole;
[0007] The pressure block is driven by the first driving cylinder to move towards the electric drill to press against the rotating housing of the electric drill to release the drill bit, or the pressure block is driven by the first driving cylinder to move away from the electric drill to release the rotating housing of the electric drill to lock the drill bit.
[0008] Preferably, the bottom of the auxiliary drill changing mechanism is further provided with a fixing mechanism, which includes multiple connecting rods, a bearing plate and a fixing block;
[0009] The bottom of the fixing block is fixedly connected to the bearing plate, and the bearing plate is fixedly connected to the bottom of the auxiliary drill changing mechanism based on a plurality of the connecting rods.
[0010] Preferably, the top of the fixing block is recessed downward to form an arc surface, and the top of the fixing block is in contact with the output end of the auxiliary drill changing mechanism.
[0011] Preferably, the bottom of the base is provided with a movable slide rail, a guide rod provided on the movable slide rail, and a slider embedded in the movable slide rail;
[0012] A second drive cylinder is provided at one end of the movable slide rail, and a stop is provided at the other end of the movable slide rail. The slider is driven by the second drive cylinder to move back and forth along the guide rod on the movable slide rail.
[0013] Preferably, a track is provided on one side of the slider, one end of the track is fixedly connected to the slider, the other end of the track is connected to the base, and the track is distributed in a U-shape on one side of the slider.
[0014] Preferably, the slider is provided with a rotating mechanism, the rotating mechanism including a second drive motor and a transmission gear set, the second drive motor being connected to the slider based on the transmission gear set;
[0015] The slider is driven to rotate by the rotating mechanism.
[0016] Preferably, the transmission gear set includes: a protective housing, a driving gear located inside the protective housing, and a driven gear located inside the protective housing, wherein the driving gear and the driven gear mesh;
[0017] The driving gear is fixedly connected to the output end of the second drive motor, and the shaft of the driven gear is fixedly connected to the center of the slider based on the connecting column.
[0018] Preferably, the end of the electric drill is provided with a buffer spring, one end of which is connected to the end of the electric drill, and the other end of which is connected to the base.
[0019] Preferably, a vacuum cleaner is provided on one side of the electric drill, with the output end of the vacuum cleaner facing the drill bit of the electric drill.
[0020] Preferably, the automatic drilling machine with auxiliary drill changing mechanism further includes a control module, which is signal-connected to each component of the automatic drilling machine with auxiliary drill changing mechanism.
[0021] The beneficial effects of this utility model are:
[0022] This invention, by setting up a first drive cylinder and a pressure block, reduces the current input to the drive motor when the automatic drilling machine with an auxiliary drill changing mechanism needs to remove the drill bit. This reduces the output power of the drive motor, thereby reducing the output speed of the electric drill. This facilitates the drill bit entering the corresponding position and being locked. Then, the output end of the first drive cylinder starts to output power, driving the pressure block to move closer to the electric drill and press against the rotating shell of the electric drill. This causes the jaws installed in the rotating shell to release their grip on the drill bit. The electric drill continues to rotate, causing the drill bit to completely disengage from the electric drill. Finally, the output end of the first drive cylinder starts to output power, driving the pressure block to move away from the electric drill, and the jaws installed in the rotating shell return to their initial position. When an automatic drilling machine with an auxiliary drill-changing mechanism needs to install a drill bit, the current input to the drive motor decreases, resulting in a reduction in the drive motor's output power. Consequently, the drill's output speed decreases, and the output end of the first drive cylinder begins to output power, moving the pressure block closer to the drill and pressing it against the drill's rotating housing. This causes the jaws installed inside the rotating housing to release, facilitating the drill bit's entry into the corresponding position on the drill. As the drill continues to rotate, the drill bit is fully inserted into its corresponding position. Finally, the output end of the first drive cylinder begins to output power, moving the pressure block away from the drill, and the jaws installed inside the rotating housing return to their initial position, clamping the drill bit. This completes the automatic drill-changing process, reducing the waiting time for manual drill changes and improving drill-bit replacement efficiency. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a first structural schematic diagram of an automatic drilling machine with an auxiliary drill changing mechanism according to this utility model;
[0025] Figure 2 This is a second structural schematic diagram of the automatic drilling machine with an auxiliary drill changing mechanism in this utility model;
[0026] Figure 3 yes Figure 1 Enlarged view of point A in the image;
[0027] Figure 4 This is a schematic diagram of the auxiliary drill changing mechanism in this utility model;
[0028] Figure 5 This is a schematic diagram of the rotating mechanism in this utility model;
[0029] Figure 6 This is a quarter-section view of the rotating mechanism in this utility model.
[0030] In the attached diagram: 1. Base; 11. Buffer spring; 2. Electric drill; 3. Auxiliary drill changing mechanism; 31. First drive cylinder; 32. Pressure block; 4. Fixing mechanism; 41. Connecting rod; 42. Bearing plate; 43. Fixing block; 5. Moving slide rail; 51. Second drive cylinder; 52. Stop block; 6. Slider; 61. Rotating mechanism; 611. Second drive motor; 612. Transmission gear set; 6121. Protective shell; 6122. Drive gear; 6123. Driven gear; 7. Guide rod; 8. Track; 9. Vacuum cleaner. Detailed Implementation
[0031] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0032] Figure 1 This diagram shows a first structural schematic of an automatic drilling machine with an auxiliary drill changing mechanism according to the present invention. Figure 2 This diagram shows a second structural schematic of the automatic drilling machine with an auxiliary drill changing mechanism according to the present invention. Figure 3 It shows Figure 1 Enlarged view of point A in the image. Figure 4 A schematic diagram of the auxiliary drill changing mechanism in this utility model is shown. Figure 5 A schematic diagram of the rotating mechanism in this utility model is shown. Figure 6A quarter-sectional view of the rotating mechanism of this utility model is shown. The automatic drilling machine with an auxiliary drill changing mechanism includes: a base 1 and an electric drill 2 disposed in the base 1; an auxiliary drill changing mechanism 3 is disposed on the base 1, one end of the auxiliary drill changing mechanism 3 is fixed to the base 1, and the other end of the auxiliary drill changing mechanism 3 is sleeved on the output end of the electric drill 2; the auxiliary drill changing mechanism 3 includes: a first driving cylinder 31 and a pressure block 32, the pressure block 32 has a through hole, the through hole is located at a position corresponding to the output end of the electric drill 2, and the drill bit installed on the electric drill 2 passes through the through hole; the pressure block 32 is driven by the first driving cylinder 31 to move towards the electric drill 2 to press the rotating shell of the electric drill 2 to release the drill bit, or the pressure block 32 is driven by the first driving cylinder 31 to move away from the electric drill 2 to release the rotating shell of the electric drill 2 to lock the drill bit. The auxiliary drill bit changing mechanism 3 assists the automatic drilling machine with the auxiliary drill bit changing mechanism in changing drill bits. When the automatic drilling machine with the auxiliary drill bit changing mechanism needs to remove the drill bit, the current input to the drive motor is reduced, which reduces the output power of the drive motor and thus reduces the output speed of the electric drill 2. This facilitates the drill bit of the electric drill 2 entering the corresponding position and being locked. Then, the output end of the first drive cylinder 31 starts to output power, driving the pressure block 32 to move closer to the electric drill 2 and press against the rotating shell of the electric drill 2. This causes the jaws installed in the rotating shell to release their grip on the drill bit. The electric drill 2 continues to rotate, causing the drill bit to completely disengage from the electric drill 2. Finally, the output end of the first drive cylinder 31 starts to output power, driving the pressure block 32 to move away from the electric drill 2, and the jaws installed in the rotating shell return to their initial position. When the automatic drilling machine with auxiliary drill changing mechanism needs to install a drill bit, the current input to the drive motor decreases, resulting in a reduction in the output power of the drive motor. Consequently, the output speed of the electric drill 2 decreases, and the output end of the first drive cylinder 31 begins to output power, driving the pressure block 32 to move closer to the electric drill 2 and press against the rotating housing of the electric drill 2. This causes the jaws installed in the rotating housing to loosen, facilitating the entry of the drill bit into the corresponding position of the electric drill 2. The electric drill 2 continues to rotate, allowing the drill bit to be fully inserted into the corresponding position of the electric drill 2. Finally, the output end of the first drive cylinder 31 begins to output power, driving the pressure block 32 to move away from the electric drill 2, and the jaws installed in the rotating housing return to their initial position, clamping the drill bit. This achieves an automatic drill changing process, reducing the waiting time for manual drill changing and improving drill bit replacement efficiency.
[0033] Furthermore, a fixing mechanism 4 is also provided at the bottom of the auxiliary drill changing mechanism 3. The fixing mechanism 4 includes multiple connecting rods 41, a support plate 42, and a fixing block 43. The bottom of the fixing block 43 is fixedly connected to the support plate 42, and the support plate 42 is fixedly connected to the bottom of the auxiliary drill changing mechanism 3 based on the multiple connecting rods 41. In this embodiment, the fixing mechanism 4 is used to fix the drill bit of the electric drill 2, preventing the drill bit from shaking due to excessive centrifugal force when the electric drill 2 is drilling, which would cause the output end of the entire electric drill 2 to shake, thus helping to keep the electric drill 2 stable during use. The fixing mechanism 4 includes four connecting rods 41, a support plate 42, and a fixing block 43. The four connecting rods 41 are respectively located at the four apex corners of the support plate 42, and one end of each connecting rod 41 is connected to the support plate 42, and the other end is connected to the auxiliary drill changing mechanism 3, so that the support plate 42 and the drill bit adjustment mechanism are connected.
[0034] Furthermore, the top of the fixing block 43 is recessed downwards to form an arc surface, and the top of the fixing block 43 fits against the output end of the auxiliary drill changing mechanism 3. The arc surface on the fixing block 43 matches the surface shape of the output end of the electric drill 2, so that the arc surface of the fixing block 43 can fit tightly against the output end of the electric drill 2, which can effectively reduce the offset and shaking of the output end of the electric drill 2 during movement and improve the accuracy of drill bit adjustment.
[0035] It should be noted that the fixing block 43 is made of high-strength alloy steel, which can withstand greater forces and wear, ensuring the long-term stable operation of the device.
[0036] Furthermore, the base 1 has a movable slide rail 5, a guide rod 7 mounted on the movable slide rail 5, and a slider 6 embedded in the movable slide rail 5. A second drive cylinder 51 is mounted at one end of the movable slide rail 5, and a stop block 52 is mounted at the other end. The slider 6 is driven by the second drive cylinder 51 to move back and forth along the guide rod 7 on the movable slide rail 5. The bottom of the slider 6 has a connecting hole, and the guide rod 7 is inserted into the connecting hole to ensure that the slider 6 can move along the guide rod 7 when driven by the second drive cylinder 51. Simultaneously, the guide rod 7 is mounted on the movable slide rail 5, with one end connected to the beginning of the movable guide rail and the other end connected to the end of the movable guide rail. Therefore, the slider 6 can move along the movable slide rail 5 by moving along the guide rod 7. The stop block 52 is used to limit the movement range of the slider 6, so as to prevent the slider 6 from moving out of the corresponding range of the moving slide rail 5, which would lead to the risk of the automatic drilling machine with auxiliary drill changing mechanism falling off. This helps to ensure that the automatic drilling machine with auxiliary drill changing mechanism can move along the corresponding direction.
[0037] Furthermore, a track 8 is provided on one side of the slider 6. One end of the track 8 is fixedly connected to the slider 6, and the other end of the track 8 is connected to the base. The track 8 is distributed in a U-shape on one side of the slider 6. The track 8 is U-shaped on one side of the slider 6, and one end is fixedly connected to the track 8 mounting groove of the slider 6 by bolts or clips. The U-shaped distribution of the track 8 allows it to better distribute stress when subjected to lateral forces, improving the stability of the device.
[0038] Furthermore, a rotating mechanism 61 is provided on the slider 6. The rotating mechanism 61 includes a second drive motor 611 and a transmission gear set 612. The second drive motor 611 is connected to the slider 6 based on the transmission gear set 612. The slider 6 rotates under the drive of the rotating mechanism 61. In this embodiment, the rotating mechanism 61 is used to drive the entire base 1 to rotate, thereby adjusting the direction of the electric drill 2. This allows the automatic drilling machine with an auxiliary drill changing mechanism to rotate to different angles for processing, which improves the convenience of the automatic drilling machine with an auxiliary drill changing mechanism.
[0039] Furthermore, the transmission gear set 612 includes: a protective shell 6121, a driving gear 6122 located inside the protective shell 6121, and a driven gear 6123 located inside the protective shell 6121. The driving gear 6122 and the driven gear 6123 mesh. The driving gear 6122 is fixedly connected to the output end of the second drive motor 611, and the axis of the driven gear 6123 is fixedly connected to the center of the slider 6 based on a connecting column. In this embodiment, the protective shell 6121 is used to protect the driving gear 6122 and the driven gear 6123, preventing dust from entering the gap between the driving gear 6122 and the driven gear 6123. When the driving gear 6122 and the driven gear 6123 mesh, the dust directly scrapes the tooth surface, causing scratches and micro-cracks on the tooth surface. Long-term accumulation will accelerate the metal peeling off the tooth surface, resulting in severe wear. This is beneficial for the driving gear 6122 and the driven gear 6123 to work in a less dusty environment, thus extending the service life of the driving gear 6122 and the driven gear 6123.
[0040] Furthermore, a buffer spring 11 is provided at the end of the electric drill 2. One end of the buffer spring 11 is connected to the end of the electric drill 2, and the other end is connected to the base. When the electric drill 2 is drilling, the drill bit contacts the wall and generates vibration and impact forces. These vibrations and impact forces are first transmitted through the main body of the electric drill 2 to the end of the electric drill 2, and then act on the buffer spring 11. When subjected to external force, the buffer spring 11 undergoes elastic deformation, absorbing and dispersing part of the vibration and impact forces. As the electric drill 2 continues to work, the buffer spring 11 gradually returns to its original shape, releasing the stored elastic potential energy, thereby achieving a buffering effect on vibration and impact forces. This helps reduce the damage to the electric drill 2 caused by impact and vibration, and effectively extends the service life of the electric drill 2.
[0041] Furthermore, a vacuum cleaner 9 is provided on one side of the electric drill 2, with the output end of the vacuum cleaner 9 facing the drill bit of the electric drill 2. In this embodiment, the vacuum cleaner 9 is used to collect the dust generated when the drilling machine drills holes in the wall, promptly removing the dust produced by the drilling machine, which helps to ensure a clean working environment; and the vacuum cleaner 9 and the drilling machine are connected to the same power supply, which can automatically control the start and stop of the vacuum cleaner 9 according to the working status of the electric drill 2. When the electric drill 2 starts, the vacuum cleaner 9 starts automatically; when the electric drill 2 stops, the vacuum cleaner 9 stops automatically after a delay to ensure that all the dust in the dust collection box is completely sucked out.
[0042] Furthermore, the automatic drilling machine with auxiliary drill changing mechanism also includes a control module, which is signal-connected to each component of the automatic drilling machine. The control module is signal-connected to the electric drill 2, the tension adjustment mechanism, and the rotating mechanism 61. Specifically, the control module's signal connection to the electric drill 2 controls the current flowing to the drill 2 to control its output power; the control module's signal connection to the tension adjustment mechanism controls the first drive cylinder 31 to drive the pressure block 32 to press against or move away from the rotating housing, thereby pressing or releasing the drill bit; and the control module's signal connection to the rotating mechanism 61 controls the rotation angle of the rotating mechanism 61 to achieve 360° rotation, enabling the electric drill 2 to more accurately position the drilling point and reduce deviations and errors.
[0043] It should be noted that the automatic drilling machine with auxiliary drill changing mechanism is also equipped with a linear screw drive structure. This linear screw drive structure propels the automatic drilling machine horizontally, allowing it to advance automatically during drilling to create a hole of a preset depth, and to exit from the finished hole after drilling is complete. The linear screw drive structure and the rotating mechanism 61 work together to act as an extension joint for the automatic drilling machine, facilitating its application in different working scenarios when mounted on a corresponding drilling robot.
[0044] In summary, this utility model, by setting a first drive cylinder and a pressure block, reduces the current input to the drive motor when the automatic drilling machine with an auxiliary drill changing mechanism needs to remove the drill bit. This reduces the output power of the drive motor, thereby reducing the output speed of the electric drill. This facilitates the drill bit entering the corresponding position and being locked. Then, the output end of the first drive cylinder starts to output power, driving the pressure block to move closer to the electric drill and press against the rotating housing of the electric drill. This causes the jaws installed in the rotating housing to release their grip on the drill bit. The electric drill continues to rotate, causing the drill bit to completely disengage from the electric drill. Finally, the output end of the first drive cylinder starts to output power, driving the pressure block to move away from the electric drill, and the jaws installed in the rotating housing return to their initial position. When an automatic drilling machine with an auxiliary drill-changing mechanism needs to install a drill bit, the current input to the drive motor decreases, resulting in a reduction in the drive motor's output power. Consequently, the drill's output speed decreases, and the output end of the first drive cylinder begins to output power, moving the pressure block closer to the drill and pressing it against the drill's rotating housing. This causes the jaws installed inside the rotating housing to release, facilitating the drill bit's entry into the corresponding position on the drill. As the drill continues to rotate, the drill bit is fully inserted into its corresponding position. Finally, the output end of the first drive cylinder begins to output power, moving the pressure block away from the drill, and the jaws installed inside the rotating housing return to their initial position, clamping the drill bit. This completes the automatic drill-changing process, reducing the waiting time for manual drill changes and improving drill-bit replacement efficiency.
[0045] Furthermore, the above description provides a detailed introduction to an automatic drilling machine with an auxiliary drill changing mechanism provided by the embodiments of this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. An automatic punch with an auxiliary drill changing mechanism, characterized by, The automatic drilling machine with an auxiliary drill changing mechanism includes: a base and an electric drill disposed in the base; An auxiliary drill changing mechanism is provided on the base. One end of the auxiliary drill changing mechanism is fixed on the base, and the other end of the auxiliary drill changing mechanism is sleeved on the output end of the electric drill. The auxiliary drill changing mechanism includes: a first drive cylinder and a pressure block, the pressure block having a through hole located at a position corresponding to the output end of the electric drill, and the drill bit installed on the electric drill passing through the through hole; The pressure block is driven by the first driving cylinder to move towards the electric drill to press against the rotating housing of the electric drill to release the drill bit, or the pressure block is driven by the first driving cylinder to move away from the electric drill to release the rotating housing of the electric drill to lock the drill bit.
2. The automatic drilling machine with an auxiliary drill changing mechanism according to claim 1, characterized in that, The bottom of the auxiliary drill changing mechanism is also provided with a fixing mechanism, which includes multiple connecting rods, a bearing plate and a fixing block; The bottom of the fixing block is fixedly connected to the bearing plate, and the bearing plate is fixedly connected to the bottom of the auxiliary drill changing mechanism based on a plurality of the connecting rods.
3. The automatic drilling machine with an auxiliary drill changing mechanism according to claim 2, characterized in that, The top of the fixing block is recessed downward to form an arc surface, and the top of the fixing block is in contact with the output end of the auxiliary drill changing mechanism.
4. The automatic drilling machine with an auxiliary drill changing mechanism according to claim 3, characterized in that, The base is provided with a movable slide rail, a guide rod on the movable slide rail, and a slider embedded in the movable slide rail. A second drive cylinder is provided at one end of the movable slide rail, and a stop is provided at the other end of the movable slide rail. The slider is driven by the second drive cylinder to move back and forth along the guide rod on the movable slide rail.
5. The automatic drilling machine with an auxiliary drill changing mechanism according to claim 4, characterized in that, A track is provided on one side of the slider. One end of the track is fixedly connected to the slider, and the other end of the track is connected to the base. The track is distributed in a U-shape on one side of the slider.
6. The automatic drilling machine with an auxiliary drill changing mechanism according to claim 4, characterized in that, The slider is provided with a rotating mechanism, which includes a second drive motor and a transmission gear set. The second drive motor is connected to the slider based on the transmission gear set. The slider is driven to rotate by the rotating mechanism.
7. The automatic drilling machine with an auxiliary drill changing mechanism according to claim 5, characterized in that, The transmission gear set includes: a protective housing, a driving gear located inside the protective housing, and a driven gear located inside the protective housing, wherein the driving gear and the driven gear mesh. The driving gear is fixedly connected to the output end of the second drive motor, and the shaft of the driven gear is fixedly connected to the center of the slider based on the connecting column.
8. The automatic drilling machine with an auxiliary drill changing mechanism according to claim 1, characterized in that, The electric drill is equipped with a buffer spring at its end. One end of the buffer spring is connected to the end of the electric drill, and the other end of the buffer spring is connected to the base.
9. The automatic drilling machine with an auxiliary drill changing mechanism according to claim 1, characterized in that, A vacuum cleaner is installed on one side of the electric drill, with the output end of the vacuum cleaner facing the drill bit.
10. The automatic drilling machine with an auxiliary drill changing mechanism according to claim 1, characterized in that, The automatic drilling machine with auxiliary drill changing mechanism also includes a control module, which is signal-connected to each component of the automatic drilling machine with auxiliary drill changing mechanism.