A centering guide for alloy drill bits

Abstract

The utility model provides a kind of centering guiding device of alloy drill bit, including base, the top of base is fixedly installed with two guide rails, the top of base and located the left side of guide rail is provided with first mount, the right side of first mount can be rotatably connected alloy drill bit, the outside of alloy drill bit is provided with guiding mechanism, the right side of base top is provided with rack;The guide rail for realizing to first mount is installed, the first mount for realizing to alloy drill bit is installed, simultaneously under the action of first mount, alloy drill bit is driven, and then subsequent workpiece is drilled, the guiding mechanism for realizing to alloy drill bit is supported limit is set, increase the stability of alloy drill bit when rotating, avoid the right side of alloy drill bit from deviating due to alloy drill bit is longer under the action of centrifugal force when rotating, resulting in subsequent drilling deviation affects the problem of part machining precision.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, specifically to a centering and guiding device for an alloy drill bit. Background Technology

[0002] Traditional devices for machining with alloy drill bits have the following problems: long alloy drill bits are prone to displacement due to centrifugal force when rotating at high speeds, leading to a decrease in drilling accuracy; the fixed workpiece support structure makes it difficult to adapt to workpieces of different lengths, affecting machining flexibility; and the insufficient stability of the movement between the drill bit and the mounting base further exacerbates machining errors. To solve the above problems, this application provides a centering and guiding device for alloy drill bits. Utility Model Content

[0003] The present invention aims to solve the problems mentioned in the background art by providing a centering and guiding device for alloy drill bits. By optimizing the guiding structure, workpiece support adjustment mechanism and drive system, the drilling accuracy and ease of operation are improved.

[0004] The specific technical solution is as follows:

[0005] A centering and guiding device for an alloy drill bit includes a base, two guide rails fixedly mounted on the top of the base, a first mounting seat disposed on the top of the base and on the left side of the guide rails, an alloy drill bit rotatably connected to the right side of the first mounting seat, a guiding mechanism disposed on the outer side of the alloy drill bit, a placement frame disposed on the right side of the top of the base, a second mounting seat fixedly mounted on the right side of the top of the base, and an indexing plate fixedly mounted on the left side of the second mounting seat.

[0006] The guiding mechanism includes a support sleeve fitted on the outside of the alloy drill bit, two first electric push rods are fixedly installed at the bottom of the support sleeve, and an oil-free bushing is fitted on the outside of the alloy drill bit and inside the support sleeve.

[0007] As a preferred embodiment of this utility model, two rectangular brackets are fixedly installed at the bottom of the first electric push rod, and the rectangular brackets are sleeved on the outside of the guide rail.

[0008] As a preferred embodiment of this utility model, a drive motor is fixedly installed on the left side of the first mounting base, and the output end of the drive motor extends through the interior of the first mounting base and is fixedly connected to the left side of the alloy drill bit.

[0009] As a preferred embodiment of this utility model, the base has sliding grooves on both sides, and a slider is slidably connected inside the sliding groove. A second electric push rod is fixedly installed on the top of the slider, and the second electric push rod extends to the bottom of the placement frame.

[0010] As a preferred embodiment of this utility model, two connecting sleeves are fixedly installed at the bottom of the placement frame, and the connecting sleeves are sleeved on the outside of the output end of the second electric push rod.

[0011] As a preferred embodiment of this utility model, the bottom of the first mounting base is provided with a guide groove, and the first mounting base is sleeved on the outside of the guide rail through the guide groove.

[0012] As a preferred embodiment of this utility model, a third mounting base is fixedly installed on the left side of the top of the base, a servo motor is fixedly installed on the left side of the third mounting base, a threaded rod is fixedly installed on the output shaft of the servo motor, and the threaded rod extends to the right and is connected to the first mounting base by a thread.

[0013] This utility model has the following beneficial effects:

[0014] 1. High-precision centering and guidance: The guiding mechanism (including support sleeve, oil-free bushing, first electric push rod, etc.) provides stable support and calibration for the alloy drill bit, preventing it from deviating due to its long length or high-speed rotation, and significantly improving drilling accuracy.

[0015] 2. Flexible workpiece adaptation: Through the cooperation of the slide, slider, second electric push rod and placement frame, the support position can be adjusted according to the length of the workpiece, and the connecting sleeve makes it easy to replace the placement frame to adapt to the support requirements of workpieces of different sizes.

[0016] 3. Stable drive and movement: The servo motor and threaded rod drive the first mounting base to move smoothly along the guide rail. Combined with the limiting effect of the guide groove, the stability of the alloy drill bit movement process is ensured, further guaranteeing the machining accuracy. Attached Figure Description

[0017] Figure 1 A schematic diagram of the centering and guiding device for an alloy drill bit provided in an embodiment of this utility model;

[0018] Figure 2 A schematic diagram of the base structure of the centering and guiding device for the alloy drill bit provided in an embodiment of this utility model;

[0019] Figure 3 A schematic diagram of the alloy drill bit and guide mechanism for the centering and guiding device of the alloy drill bit provided in the embodiment of this utility model;

[0020] Figure 4 A schematic diagram of the component support mechanism of the centering and guiding device for the alloy drill bit provided in this embodiment of the utility model.

[0021] In the attached diagram: 1. Base; 2. First mounting base; 3. Guide mechanism; 301. Oil-free bushing; 302. Support sleeve; 303. Rectangular bracket; 304. First electric push rod; 4. Second mounting base; 5. Indexing plate; 6. Placement rack; 7. Second electric push rod; 8. Drive motor; 9. Servo motor; 10. Third mounting base; 11. Threaded rod; 12. Guide rail; 13. Slide groove; 14. Alloy drill bit; 15. Guide groove; 16. Connecting sleeve; 17. Slider. Detailed Implementation

[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0024] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0025] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example

[0027] The centering and guiding device for the alloy drill bit provided in this embodiment, such as Figures 1-4As shown, the system includes a base 1, with two guide rails 12 fixedly mounted on its top. A first mounting seat 2 is located on the top of the base 1 and to the left of the guide rails 12. A carbide drill bit 14 is rotatably connected to the right side of the first mounting seat 2. A guide mechanism 3 is provided on the outer side of the carbide drill bit 14. A placement bracket 6 is located on the right side of the top of the base 1. A second mounting seat 4 is fixedly mounted on the right side of the top of the base 1. An indexing plate 5 is fixedly mounted on the left side of the second mounting seat 4. The guide rails 12 are used to mount the first mounting seat 2, and the first mounting seat 2 is used to mount the carbide drill bit 14. Simultaneously, the first mounting seat 2 drives the carbide drill bit 14, thereby enabling subsequent drilling of the workpiece. The guide mechanism 3 is used to support and limit the alloy drill bit 14, increasing its stability during rotation and preventing the right side of the long alloy drill bit 14 from shifting due to centrifugal force, which could affect the machining accuracy of the part. The indexing plate 5 serves as the installation reference for the workpiece, firmly clamping it to prevent displacement during drilling and ensuring accurate drilling position. Through its indexing function, the rotation angle of the workpiece can be precisely adjusted, allowing the alloy drill bit 14 to perform drilling operations at different angles on the workpiece, meeting multi-directional and multi-angle machining needs and improving the adaptability of the device to complex machining scenarios.

[0028] The guide mechanism 3 includes a support sleeve 302 sleeved on the outside of the alloy drill bit 14. Two first electric push rods 304 are fixedly installed at the bottom of the support sleeve 302. An oil-free bushing 301 is sleeved on the outside of the alloy drill bit 14 and inside the support sleeve 302. The oil-free bushing 301 is used to connect the alloy drill bit 14 and the support sleeve 302, and at the same time, it can support the alloy drill bit 14 when it rotates and moves, thereby increasing the stability of the alloy drill bit 14 when it rotates and moves.

[0029] Two rectangular brackets 303 are fixedly installed at the bottom of the first electric push rod 304. The rectangular brackets 303 are sleeved on the outside of the guide rail 12. The rectangular brackets 303 are used to connect the first electric push rod 304 and the support sleeve 302 relative to the guide rail 12. The first electric push rod 304 is used to support and adjust the support sleeve 302 to calibrate the alloy drill bit 14.

[0030] A drive motor 8 is fixedly installed on the left side of the first mounting base 2. The output end of the drive motor 8 passes through the interior of the first mounting base 2 and is fixedly connected to the left side of the alloy drill bit 14. The drive motor 8 is used to drive the alloy drill bit 14 to rotate, thereby realizing drilling of the workpiece.

[0031] The base 1 has grooves 13 on both sides, and a slider 17 is slidably connected inside the grooves 13. A second electric push rod 7 is fixedly installed on the top of the slider 17. The second electric push rod 7 extends to the bottom of the placement frame 6. The grooves 13 and slider 17 are used to install the second electric push rod 7, and at the same time, the second electric push rod 7 can drive the placement frame 6 to move to support workpieces of different lengths.

[0032] Two connecting sleeves 16 are fixedly installed at the bottom of the placement rack 6. The connecting sleeves 16 are sleeved on the outside of the output end of the second electric push rod 7. The connecting sleeves 16 are used to connect the top of the placement rack 6 and the second electric push rod 7, and can also replace and disassemble the placement rack 6 as needed.

[0033] The bottom of the first mounting base 2 is provided with a guide groove 15. The first mounting base 2 is sleeved on the outside of the guide rail 12 through the guide groove 15. The setting of the guide groove 15 makes the first mounting base 2 sleeved on the outside of the guide rail 12, thereby increasing the stability of the first mounting base 2 when moving.

[0034] A third mounting base 10 is fixedly installed on the left side of the top of the base 1. A servo motor 9 is fixedly installed on the left side of the third mounting base 10. A threaded rod 11 is fixedly installed on the output shaft of the servo motor 9. The threaded rod 11 extends to the right and is connected to the first mounting base 2 by a thread. The engagement between the servo motor 9, the threaded rod 11 and the thread is used to drive the movement of the first mounting base 2, thereby driving the drive motor 8 and the alloy drill bit 14 to move and drill the workpiece.

[0035] Working principle

[0036] 1. Guiding and Centering Principles:

[0037] The support sleeve 302 is fitted onto the outside of the alloy drill bit 14 through the oil-free bushing 301 to form a radial limit; the first electric push rod 304 can adjust the height of the support sleeve 302 to achieve center calibration of the alloy drill bit 14; the rectangular bracket 303 fixes the guide mechanism 3 to the guide rail 12 to ensure the stability of the support sleeve 302 when it moves synchronously with the alloy drill bit 14.

[0038] 2. Driving and drilling principles:

[0039] The drive motor 8 directly drives the alloy drill bit 14 to rotate at high speed; the servo motor 9 drives the threaded rod 11 to rotate, and pushes the first mounting base 2 to move to the right along the guide rail 12 through the threaded transmission, so that the rotating alloy drill bit 14 is fed step by step to complete the drilling of the workpiece.

[0040] 3. Workpiece support principle:

[0041] The slider 17 slides along the slide groove 13, driving the second electric push rod 7 and the placement frame 6 to adjust the lateral position to adapt to workpieces of different lengths; the second electric push rod 7 can extend and retract to adjust the height of the placement frame 6, achieving stable support for the workpiece; the indexing plate 5 is used to fix the workpiece and assist in adjusting the drilling angle.

[0042] How to use

[0043] 1. Workpiece fixing and support adjustment:

[0044] The workpiece is fixed by the indexing plate 5. According to the length and size of the workpiece, the second electric push rod 7 is moved along the slide groove 13 by the slider 17 to adjust the placement frame 6 to be below the workpiece. The placement frame 6 is fixed to the top of the second electric push rod 7 by the connecting sleeve 16. The second electric push rod 7 is started to raise the placement frame 6 to achieve stable support for the workpiece.

[0045] 2. Drill bit centering and calibration:

[0046] Start the first electric push rod 304, adjust the height of the support sleeve 302, so that the oil-free bushing 301 is aligned with the center of the alloy drill bit 14, and complete the centering calibration.

[0047] 3. Drilling operation:

[0048] Start the drive motor 8 to drive the alloy drill bit 14 to rotate at high speed; start the servo motor 9 to drive the threaded rod 11 to rotate, so that the first mounting seat 2 moves to the right along the guide rail 12, and the alloy drill bit 14 feeds forward accordingly, drilling the workpiece under the guidance of the oil-free bushing 301; during the drilling process, the alloy drill bit 14 slides along the inside of the oil-free bushing 301 to maintain stable feed.

[0049] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A centering and guiding device for an alloy drill bit, characterized in that, Includes a base (1), two guide rails (12) are fixedly installed on the top of the base (1), a first mounting seat (2) is provided on the top of the base (1) and on the left side of the guide rails (12), an alloy drill bit (14) is rotatably connected to the right side of the first mounting seat (2), a guide mechanism (3) is provided on the outer side of the alloy drill bit (14), a placement rack (6) is provided on the right side of the top of the base (1), a second mounting seat (4) is fixedly installed on the right side of the top of the base (1), and an indexing plate (5) is fixedly installed on the left side of the second mounting seat (4). The guiding mechanism (3) includes a support sleeve (302) sleeved on the outside of the alloy drill bit (14). Two first electric push rods (304) are fixedly installed at the bottom of the support sleeve (302). An oil-free bushing (301) is sleeved on the outside of the alloy drill bit (14) and inside the support sleeve (302).

2. The centering and guiding device for alloy drill bits according to claim 1, characterized in that, Two rectangular brackets (303) are fixedly installed at the bottom of the first electric push rod (304), and the rectangular brackets (303) are sleeved on the outside of the guide rail (12).

3. The centering and guiding device for alloy drill bits according to claim 1, characterized in that, A drive motor (8) is fixedly installed on the left side of the first mounting base (2). The output end of the drive motor (8) extends through the interior of the first mounting base (2) and is fixedly connected to the left side of the alloy drill bit (14).

4. The centering and guiding device for alloy drill bits according to claim 1, characterized in that, The base (1) has sliding grooves (13) on both sides. A slider (17) is slidably connected inside the sliding groove (13). A second electric push rod (7) is fixedly installed on the top of the slider (17). The second electric push rod (7) extends to the bottom of the placement frame (6).

5. The centering and guiding device for alloy drill bits according to claim 4, characterized in that, Two connecting sleeves (16) are fixedly installed at the bottom of the placement rack (6), and the connecting sleeves (16) are sleeved on the outside of the output end of the second electric push rod (7).

6. The centering and guiding device for alloy drill bits according to claim 1, characterized in that, The bottom of the first mounting base (2) is provided with a guide groove (15), and the first mounting base (2) is sleeved on the outside of the guide rail (12) through the guide groove (15).

7. The centering and guiding device for alloy drill bits according to any one of claims 1-6, characterized in that, A third mounting base (10) is fixedly installed on the left side of the top of the base (1). A servo motor (9) is fixedly installed on the left side of the third mounting base (10). A threaded rod (11) is fixedly installed on the output shaft of the servo motor (9). The threaded rod (11) extends to the right and is connected to the first mounting base (2) by a thread.

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