An automatic detection and micro-weight reduction correction device for dynamic balance of drill bits
By designing an automatic dynamic balance detection and micro-weight reduction correction device for drill bits, combined with a dynamic balancing machine and a motor system, automatic detection and micro-weight reduction correction of drill bits are achieved, solving the problem that existing devices cannot directly correct the weight, and improving production efficiency and correction accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DANYANG BAOJIE TOOLS CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-05-26
AI Technical Summary
Existing automatic dynamic balancing testing devices for drill bits can only perform testing, but cannot directly perform weight reduction and correction, resulting in a disconnect between dynamic balancing testing and correction, which affects production efficiency, correction accuracy, and quality stability.
An automatic dynamic balancing detection and micro-weight reduction correction device for drill bits was designed. Through the combination of components such as dynamic balancing machine, connecting frame, motor, screw, hydraulic cylinder, grinding disc and drill bit, the automatic detection and micro-weight reduction correction of drill bits are realized. The precise weight reduction operation is performed by using motor and hydraulic system.
The system automates drill bit dynamic balance testing and micro-weight reduction correction, improving production efficiency and correction accuracy, and ensuring drill bit stability and service life.
Smart Images
Figure CN224286236U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of drill bit alignment, and in particular to an automatic detection and micro-weight reduction correction device for drill bit dynamic balance. Background Technology
[0002] Dynamic balancing of drill bits is a crucial step in ensuring their stability, machining quality, and service life during high-speed rotation. It is indispensable, especially in modern high-precision and high-efficiency machining scenarios. When there is a problem with the dynamic balance of the drill bit, it is necessary to perform weight reduction correction. Drill bit weight reduction correction can remove excess mass in certain areas of the drill bit, eliminate or reduce the imbalance during rotation, thereby ensuring the stability, accuracy, and safety of the drilling process. Therefore, there is a particular need for an automatic dynamic balance detection and micro-weight reduction correction device for drill bits.
[0003] However, most existing automatic drill bit dynamic balancing testing devices can only test the dynamic balance of the drill bit. After the test, they cannot directly perform weight reduction and correction on the drill bit. If the drill bit dynamic balancing testing machine lacks weight reduction and correction function, it will lead to a disconnect between the dynamic balancing test and correction process, resulting in significant defects in production efficiency, correction accuracy, and quality stability.
[0004] To solve the above problem, after searching, the publication number CN 106482898 was found. Patent A discloses a rotor dynamic balancing tester, stating that "rotor imbalance is one of the main causes of excessive rotor vibration and noise, which directly affects engine performance and service life. Existing small rotor dynamic balancing test equipment mainly falls into two categories: one is automated, high-precision testing equipment, which, while highly accurate, is not necessary for small rotors and is too expensive; the other is simpler semi-automated equipment, but the rotor clamping is not secure, easily causing vibration and affecting the test results." This invention provides a rotor dynamic balancing tester that securely clamps the rotor on a platform using an axial positioning mechanism and a radial positioning device, effectively reducing rotor vibration and obtaining more accurate test results. Furthermore, this device has a simple structure, low manufacturing cost, and is suitable for dynamic balancing testing of small rotors. Additionally, this invention uses a support bearing as part of the radial positioning device, effectively reducing rotor rotation friction and further reducing vibration. However, the dynamic balancing tester can only perform testing and cannot perform weight reduction correction, resulting in significant deficiencies in production efficiency, correction accuracy, and quality stability.
[0005] In light of this, in-depth research into the aforementioned issues led to the creation of this case. Utility Model Content
[0006] The purpose of this invention is to provide an automatic dynamic balance detection and micro-weight reduction correction device for drill bits, in order to solve the problems mentioned in the background art. Most existing automatic dynamic balance detection devices for drill bits can only detect the dynamic balance of the drill bit, and cannot directly perform weight reduction correction after detection. If the dynamic balance detection machine for drill bits lacks weight reduction correction function, it will lead to a disconnect between the dynamic balance detection and correction links, resulting in significant defects in production efficiency, correction accuracy, and quality stability.
[0007] To achieve the above objectives, this utility model provides the following technical solution: an automatic dynamic balancing detection and micro-weight reduction correction device for drill bits, comprising a dynamic balancing machine, a connecting frame fixedly mounted on one side surface of the dynamic balancing machine, a first motor fixedly mounted on one side surface of the connecting frame, a screw fixedly connected to the output end of the first motor, a ball nut seat threaded on the outer wall of the screw, a connecting block fixedly mounted on the outer wall of the ball nut seat, an mounting plate fixedly mounted on one side surface of the connecting block, a first connecting shell fixedly mounted on one side surface of the mounting plate, a second connecting shell fixedly mounted on the side surface of the mounting plate on which the first connecting shell is mounted, a hydraulic cylinder fixedly mounted inside the first connecting shell, a protective shell fixedly connected to the output end of the hydraulic cylinder, a second motor fixedly mounted on one side surface of the protective shell, a drive shaft fixedly connected to the output end of the second motor, a grinding disc fixedly mounted on the outer wall of the drive shaft, a movable shell fixedly connected to the output end of the hydraulic cylinder, a third motor fixedly mounted inside the movable shell, and a drill bit fixedly connected to the output end of the third motor.
[0008] Preferably, the screw and the connecting frame are arranged in a rotating structure.
[0009] Preferably, a hydraulic cylinder is fixed inside both the first connecting shell and the second connecting shell, and the output ends of the two hydraulic cylinders are fixedly connected to the protective shell and the movable shell, respectively.
[0010] Preferably, the grinding disc and the protective shell form a rotating structure via a drive shaft, and the drill head and the moving shell form a rotating structure.
[0011] Preferably, a connecting seat is fixedly installed on the upper surface of the dynamic balancing machine, a fourth motor is fixedly installed inside the connecting seat, a connecting shaft is fixedly connected to the output end of the fourth motor, a rotating plate is fixedly connected to the other end of the connecting shaft, a cylinder is fixedly installed on the upper surface of the rotating plate, and a fixing plate is fixedly connected to the output end of the cylinder.
[0012] Preferably, the rotating plate forms a rotating structure with the connecting seat via a connecting shaft.
[0013] Preferably, a limiting block is fixedly installed on one side surface of the connecting block, and a limiting groove is formed on the inner wall of the connecting frame facing the opening. The limiting block and the connecting frame form a sliding structure through the limiting groove.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This drill bit dynamic balance automatic detection and micro-weight removal correction device, through the setting of a dynamic balancing machine, connecting frame, first motor, screw, ball bearing nut seat, connecting block, mounting plate, first connecting shell, second connecting shell, hydraulic cylinder, protective shell, second motor, transmission shaft, grinding disc, moving shell, third motor, and drill bit, completes the dynamic balance detection work. After the drill bit is placed between two fixed plates, the cylinder makes the fixed plates clamp the drill bit. The fourth motor makes the connecting shaft rotate the rotating plate, aligning the part of the drill bit that needs weight removal with the grinding disc and the direction of the drill head. The first motor makes the screw rotate, and the ball bearing nut seat will move the mounting plate through the connecting block. When the grinding disc is needed for weight removal, the grinding disc is aligned with the part that needs weight removal; when the drill head is needed for weight removal, the drill head is aligned with the part that needs weight removal. It can adapt to different weight removal needs. Finally, the corresponding hydraulic cylinder is activated to make the grinding disc or the drill head perform weight removal correction work. Attached Figure Description
[0015] Figure 1 This is a side view of the appearance structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the interlocking structure of the connecting block and the mounting plate of this utility model;
[0017] Figure 3 This is a schematic diagram of the cooperative structure between the first connecting shell and the hydraulic cylinder of this utility model;
[0018] Figure 4 This is a schematic diagram of the interaction between the movable shell and the third motor of this utility model;
[0019] Figure 5 This is a schematic diagram of the structure of the cylinder and the fixing plate of this utility model.
[0020] In the diagram: 1. Dynamic balancing machine; 2. Connecting frame; 3. First motor; 4. Screw; 5. Ball bearing nut seat; 6. Connecting block; 7. Mounting plate; 8. First connecting shell; 9. Second connecting shell; 10. Hydraulic cylinder; 11. Protective shell; 12. Second motor; 13. Drive shaft; 14. Grinding disc; 15. Moving shell; 16. Third motor; 17. Drill head; 18. Connecting seat; 19. Fourth motor; 20. Connecting shaft; 21. Rotating plate; 22. Cylinder; 23. Fixed plate; 24. Limiting block; 25. Limiting groove. Detailed Implementation
[0021] 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.
[0022] Please see Figure 1-5 This utility model provides a technical solution: an automatic dynamic balancing detection and micro-weight reduction correction device for drill bits, including a dynamic balancing machine 1. A connecting frame 2 is fixedly installed on one side surface of the dynamic balancing machine 1. A first motor 3 is fixedly installed on one side surface of the connecting frame 2. A screw 4 is fixedly connected to the output end of the first motor 3. A ball nut seat 5 is threaded on the outer wall of the screw 4. A connecting block 6 is fixedly installed on the outer wall of the ball nut seat 5. An mounting plate 7 is fixedly installed on one side surface of the connecting block 6. A first connecting shell 8 is fixedly installed on one side surface of the mounting plate 7. A second connecting shell 9 is fixedly installed on the side surface of the mounting plate 7 where the first connecting shell 8 is installed. A hydraulic cylinder 10 is fixedly installed inside the first connecting shell 8. A protective shell 11 is fixedly connected to the output end of the hydraulic cylinder 10. A second motor 12 is fixedly installed on one side surface of the protective shell 11. A transmission shaft 13 is fixedly connected to the output end of the second motor 12. A grinding disc 14 is fixedly installed on the outer wall of the transmission shaft 13. A movable shell 15 is fixedly connected to the output end of the hydraulic cylinder 10. A first connecting shell 9 is fixedly installed inside the movable shell 15. Three motors 16, with a drill bit 17 fixedly connected to the output end of the third motor 16. Through the arrangement of the dynamic balancing machine 1, connecting frame 2, first motor 3, screw 4, ball bearing nut seat 5, connecting block 6, mounting plate 7, first connecting shell 8, second connecting shell 9, hydraulic cylinder 10, protective shell 11, second motor 12, drive shaft 13, grinding disc 14, moving shell 15, third motor 16, and drill bit 17, during weight removal, the first motor 3 rotates the screw 4, and the ball bearing nut seat 5 moves along with the mounting plate 7 via the connecting block 6. When using the grinding disc 14 for weight removal, align the grinding disc 14 with the area to be weighted. When using the drill head 17 for weight removal, align the drill head 17 with the area to be weighted. This can adapt to different weight removal needs. Finally, start the corresponding hydraulic cylinder 10. When the hydraulic cylinder 10 moves the grinding disc 14 toward the drill bit, the second motor 12 causes the drive shaft 13 to rotate the grinding disc 14, thereby performing weight removal correction. When the hydraulic cylinder 10 moves the drill head 17 toward the drill bit, the third motor 16 causes the drill head 17 to rotate, thereby performing weight removal correction.
[0023] Furthermore, the screw 4 and the connecting frame 2 form a rotating structure. With the screw 4 in place, when the screw 4 rotates, the ball nut seat 5 will carry the connecting block 6 and the mounting plate 7 to move up and down.
[0024] Furthermore, a hydraulic cylinder 10 is fixed inside both the first connecting shell 8 and the second connecting shell 9. The output ends of the two hydraulic cylinders 10 are fixedly connected to the protective shell 11 and the movable shell 15, respectively. Through the setting of the hydraulic cylinders 10, the hydraulic cylinders 10 can move horizontally with the protective shell 11 or the movable shell 15 to perform the weight reduction and correction work.
[0025] Furthermore, the grinding disc 14 forms a rotating structure with the protective shell 11 via the drive shaft 13, and the drill head 17 forms a rotating structure with the moving shell 15. With the setting of the grinding disc 14, the grinding disc 14 can perform weight reduction and correction work on the drill bit when it rotates.
[0026] Furthermore, a connecting seat 18 is fixedly installed on the upper surface of the dynamic balancing machine 1. A fourth motor 19 is fixedly installed inside the connecting seat 18. A connecting shaft 20 is fixedly connected to the output end of the fourth motor 19. A rotating plate 21 is fixedly connected to the other end of the connecting shaft 20. A cylinder 22 is fixedly installed on the upper surface of the rotating plate 21. A fixed plate 23 is fixedly connected to the output end of the cylinder 22. Through the arrangement of the connecting seat 18, the fourth motor 19, the connecting shaft 20, the rotating plate 21, the cylinder 22, and the fixed plate 23, after the dynamic balance of the drill bit is checked, the drill bit that needs to be de-weighted is placed between the two fixed plates 23. The cylinder 22 moves the fixed plate 23 toward the drill bit, and the fixed plate 23 can fix the drill bit. Then, the fourth motor 19 makes the connecting shaft 20 rotate with the rotating plate 21, which can align the part of the drill bit that needs to be de-weighted with the grinding disc 14 and the drill head 17, thereby performing the weight reduction and correction work.
[0027] Furthermore, the rotating plate 21 forms a rotating structure with the connecting seat 18 via the connecting shaft 20. With the setting of the rotating plate 21, the rotating plate 21 can adjust the angle with the drill bit when rotating, so that the position that needs to be de-weighted is aligned with the grinding disc 14 and the drill head 17.
[0028] Furthermore, a limiting block 24 is fixedly installed on one side surface of the connecting block 6, and a limiting groove 25 is opened on the inner wall of the connecting frame 2 facing the opening. The limiting block 24 and the connecting frame 2 form a sliding structure through the limiting groove 25. With the setting of the limiting block 24 and the limiting groove 25, the movement of the connecting block 6 can be limited when the limiting block 24 slides in the limiting groove 25.
[0029] Working principle: After checking the dynamic balance of the drill bit, the drill bit that needs to be deweighted is placed between two fixed plates 23. Cylinder 22 moves the fixed plates 23 toward the drill bit, which can fix the drill bit. Then, the fourth motor 19 causes the connecting shaft 20 to rotate the rotating plate 21, which can align the part of the drill bit that needs to be deweighted with the grinding disc 14 and the drill head 17. During deweighting, the first motor 3 causes the screw 4 to rotate, and the ball nut seat 5 moves the mounting plate 7 through the connecting block 6. When the grinding disc 14 is used for weight removal, it is aligned with the part that needs weight removal. When the drilling head 17 is used for weight removal, it is aligned with the part that needs weight removal. Finally, the corresponding hydraulic cylinder 10 is activated. When the hydraulic cylinder 10 moves the grinding disc 14 toward the drill bit, the second motor 12 causes the drive shaft 13 to rotate the grinding disc 14, thereby performing weight removal correction. When the hydraulic cylinder 10 moves the drilling head 17 toward the drill bit, the third motor 16 causes the drilling head 17 to rotate, thereby performing weight removal correction.
[0030] 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. An automatic detection and micro-weight reduction correction device for drill bit dynamic balance, comprising a dynamic balancing machine (1), characterized in that: A connecting frame (2) is fixedly installed on one side surface of the dynamic balancing machine (1). A first motor (3) is fixedly installed on one side surface of the connecting frame (2). A screw (4) is fixedly connected to the output end of the first motor (3). A ball nut seat (5) is threaded on the outer wall of the screw (4). A connecting block (6) is fixedly installed on the outer wall of the ball nut seat (5). A mounting plate (7) is fixedly installed on one side surface of the connecting block (6). A first connecting shell (8) is fixedly installed on one side surface of the mounting plate (7). A second connecting shell (9) is fixedly installed on the side surface of the mounting plate (7) where the first connecting shell (8) is mounted. A hydraulic cylinder (10) is fixedly installed inside the first connecting shell (8). A protective shell (11) is fixedly connected to the output end of the hydraulic cylinder (10). A second motor (12) is fixedly installed on one side surface of the protective shell (11). A transmission shaft (13) is fixedly connected to the output end of the second motor (12). A grinding disc (14) is fixedly installed on the outer wall of the transmission shaft (13). A movable shell (15) is fixedly connected to the output end of the hydraulic cylinder (10). A third motor (16) is fixedly installed inside the movable shell (15). A drill bit (17) is fixedly connected to the output end of the third motor (16).
2. The automatic detection and micro-weight reduction correction device for drill bit dynamic balance according to claim 1, characterized in that: The screw (4) and the connecting frame (2) form a rotating structure.
3. The automatic detection and micro-weight reduction correction device for drill bit dynamic balance according to claim 1, characterized in that: A hydraulic cylinder (10) is fixed inside both the first connecting shell (8) and the second connecting shell (9), and the output ends of the two hydraulic cylinders (10) are fixedly connected to the protective shell (11) and the movable shell (15) respectively.
4. The automatic detection and micro-weight reduction correction device for drill bit dynamic balance according to claim 1, characterized in that: The grinding disc (14) forms a rotating structure with the protective shell (11) via the transmission shaft (13), and the drill head (17) forms a rotating structure with the moving shell (15).
5. The automatic detection and micro-weight reduction correction device for drill bit dynamic balance according to claim 1, characterized in that: A connecting seat (18) is fixedly installed on the upper surface of the dynamic balancing machine (1). A fourth motor (19) is fixedly installed inside the connecting seat (18). A connecting shaft (20) is fixedly connected to the output end of the fourth motor (19). A rotating plate (21) is fixedly connected to the other end of the connecting shaft (20). A cylinder (22) is fixedly installed on the upper surface of the rotating plate (21). A fixing plate (23) is fixedly connected to the output end of the cylinder (22).
6. The automatic detection and micro-weight reduction correction device for drill bit dynamic balance according to claim 5, characterized in that: The rotating plate (21) forms a rotating structure with the connecting seat (18) via the connecting shaft (20).
7. The automatic detection and micro-weight reduction correction device for drill bit dynamic balance according to claim 1, characterized in that: A limiting block (24) is fixedly installed on one side surface of the connecting block (6), and a limiting groove (25) is opened on the inner wall of the side facing the opening of the connecting frame (2). The limiting block (24) and the connecting frame (2) form a sliding structure through the limiting groove (25).