Deep hole drill bit clamping handle

Abstract

The utility model discloses a deep hole drill bit clamping handle, which relates to the technical field of deep hole drill bits and comprises a drill bit body, a rotary connector is arranged on the drill bit body, a limit hole is arranged on the inner side of the rotary connector on the drill bit body, and a clamping handle component is rotatably connected onto the drill bit body. The clamping handle assembly comprises a clamping handle body rotationally installed on the drill bit body, a limiting square column is installed in the clamping handle body in a sliding mode, the limiting square column is sleeved with a tension spring, a trigger mechanism is installed at the upper end of the clamping handle body, and a rotary connecting part is arranged at the bottom of the clamping handle body. A spring groove is formed in the limiting square column, a spring seat is fixedly installed at the upper end of the spring groove, and a clamping groove is formed in the side wall of the clamping handle body. According to the deep hole drill bit clamping handle, through cooperative use of the clamping handle assembly and the triggering mechanism, the situation that the clamping handle body is not completely clamped by a chuck is prevented, and the safety of drilling operation is improved.

Description

Technical Field

[0001] This utility model relates to the field of deep hole drill bit technology, specifically a deep hole drill bit clamping shank. Background Technology

[0002] An automatic tool changer (APC) is a device that enables rapid tool changing through an automated system, aiming to improve machining efficiency, reduce downtime, and enhance machining accuracy. Its core components include a tool magazine, a tool changing mechanism, and a control system. The tool magazine stores various tools; common types include chain-type, disc-type, and drum-type tool magazines. The tool changing mechanism is responsible for retrieving tools from the magazine and installing them onto the spindle; common types include robotic arms and cam-type tool changing mechanisms. The control system controls the tool changing process through a numerical control (CNC) system, ensuring precision and efficiency.

[0003] In machining processes, a tool changer is typically used to connect the shank on the drill bit to the machine tool chuck. During tool changing, this mechanism may encounter technical problems or malfunctions. If the tool changer fails during operation, it may be unable to fully insert the shank onto the drill bit into the machine tool chuck. If the shank is not fully inserted, the chuck will not be able to effectively clamp it. In this situation, during drilling operations, the drill bit may fall out due to unstable clamping, posing a safety risk. Utility Model Content

[0004] The purpose of this invention is to provide a deep hole drill bit clamping shank to solve the problem of drill bit detachment risk in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a deep hole drill bit clamping shank, comprising a drill bit body, a rotary interface on the drill bit body, a limit hole on the inner side of the rotary interface on the drill bit body, a clamping shank assembly rotatably connected to the drill bit body, the clamping shank assembly comprising a clamping shank body rotatably mounted on the drill bit body, a limit post slidably mounted inside the clamping shank body, a tension spring sleeved on the limit post, and a triggering mechanism mounted on the upper end of the clamping shank body.

[0006] Preferably, the bottom of the clamping handle body is provided with a rotating connecting part, the limiting square post is provided with a spring groove, the upper end of the spring groove is fixedly installed with a spring seat, the side wall of the clamping handle body is provided with a clamping groove, and the upper end of the limiting square post is fixedly installed with a strong magnet.

[0007] Preferably, the clamping handle body has a movable groove, and the limiting column is slidably installed in the limiting column through the movable groove.

[0008] Preferably, the tension spring is sleeved on the limiting square post through a spring groove, one end of the tension spring is fixedly installed on the spring seat, and the other end of the tension spring is fixedly installed at the bottom of the movable groove in the clamping shank body. The rotary connecting part is rotatably installed in the rotary interface, and the drill bit body is rotatably installed on the clamping shank body through the rotary connecting part.

[0009] Preferably, the triggering mechanism includes a mounting groove on the clamping handle body and a limiting groove on the limiting column. A reset spring is provided at the bottom of the mounting groove. A triggering guide rod is movably installed in the mounting groove. An offset sliding groove is provided on the surface of the triggering guide rod. A limiting slider is fixedly installed on the inner wall of the mounting groove and is slidably installed in the offset sliding groove. A limiting baffle is fixedly installed at the bottom of the triggering guide rod.

[0010] Preferably, a positioning hole is provided on the inner wall of the mounting groove, and the limiting slider is installed on the inner wall of the mounting groove through the positioning hole.

[0011] Preferably, the trigger guide rod is movably mounted on the clamping handle body through the mounting groove, one end of the reset spring is connected to the bottom of the mounting groove, the other end of the reset spring is connected to the bottom of the trigger guide rod, and the limiting baffle is embedded in the limiting square post through the limiting groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this application, after the clamping shank body is fully inserted into the machine tool chuck, the trigger guide rod is pressed down, causing the return spring to compress. During the downward movement of the trigger guide rod, the limit slider slides along the offset groove, causing the trigger guide rod to deflect. The deflection of the trigger guide rod causes the limit stop plate to deflect, disengaging it from the limit groove. After the limit stop plate disengages from the limit groove, the limit square post loses its obstruction, and the tension spring then pulls the limit square post downward, causing it to embed into the limit hole. This series of actions ensures a fixed connection between the drill bit body and the clamping shank body, facilitating drilling operations.

[0014] 2. In this application, if the clamping shank body is not fully inserted into the machine tool chuck, the trigger guide rod cannot be pressed down. Since the trigger guide rod is not pressed down, the limiting square post cannot be inserted into the limiting hole, causing the drill bit body to rotate and be mounted on the clamping shank body, thus preventing drilling operations. This design effectively prevents the clamping shank body from being fully clamped by the chuck, significantly improving the safety of drilling operations. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a partial structural schematic diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the clamping handle assembly of this utility model;

[0018] Figure 4 This utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 5 This is a partial schematic diagram of the triggering mechanism of this utility model.

[0020] The following are the labeling elements in the diagram: 1. Drill bit body; 2. Rotary interface; 3. Limiting hole; 4. Clamping shank assembly; 401. Clamping shank body; 402. Limiting square post; 403. Spring seat; 404. Spring groove; 405. Tension spring; 406. Rotary connection part; 407. Clamping groove; 408. Strong magnet; 5. Triggering mechanism; 501. Trigger guide rod; 502. Offset slide groove; 503. Limiting slider; 504. Return spring; 505. Mounting groove; 506. Limiting groove; 507. Limiting stop. 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] like Figure 1 and Figure 2 As shown, this utility model provides a technical solution for a deep hole drill bit clamping shank, including a drill bit body 1, a rotary interface 2 on the drill bit body 1, a limit hole 3 on the inner side of the rotary interface 2 on the drill bit body 1, a clamping shank assembly 4 rotatably connected to the drill bit body 1, and a triggering mechanism 5 installed on the upper end of the clamping shank body 401. Through the cooperation of the clamping shank assembly 4 and the triggering mechanism 5, the situation where the clamping shank body 401 is not fully clamped by the chuck is prevented, thereby improving the safety of drilling operations.

[0023] like Figure 2 and Figure 3As shown, the clamping shank assembly 4 includes a clamping shank body 401 rotatably mounted on the drill bit body 1. A limiting post 402 is slidably mounted inside the clamping shank body 401. A tension spring 405 is sleeved on the limiting post 402. A rotating connecting part 406 is provided at the bottom of the clamping shank body 401. A spring groove 404 is provided on the limiting post 402. A spring seat 403 is fixedly mounted on the upper end of the spring groove 404. A clamping groove 407 is provided on the side wall of the clamping shank body 401. A strong magnet 408 is fixedly mounted on the upper end of the limiting post 402. A movable groove is provided on the clamping shank body 401. The limiting post 402 is slidably mounted inside the limiting post 402 through the movable groove.

[0024] Specifically, once the limiting stop 507 disengages from the limiting groove 506, the limiting post 402 is no longer obstructed. Once the limiting post 402 is no longer blocked, the tension spring 405 activates, pulling the spring seat 403 downwards. As the spring seat 403 moves downwards, the limiting post 402 also moves downwards, eventually inserting into the limiting hole 3. This action ensures a tight fixation between the drill bit body 1 and the clamping shank body 401, allowing the drill bit body 1 to perform drilling operations. After replacing the drill bit, the electromagnet attracts the strong magnet 408, thereby resetting the limiting post 402 and ensuring the equipment returns to its initial state, ready for the next use.

[0025] like Figure 2 , Figure 4 and Figure 5 As shown, the triggering mechanism 5 includes a mounting groove 505 on the clamping handle body 401 and a limiting groove 506 on the limiting post 402. A reset spring 504 is provided at the bottom of the mounting groove 505. A triggering guide rod 501 is movably mounted in the mounting groove 505. An offset sliding groove 502 is provided on the surface of the triggering guide rod 501. A limiting slider 503 is fixedly mounted on the inner wall of the mounting groove 505 and is slidably mounted in the offset sliding groove 502. A limiting baffle 507 is fixedly mounted at the bottom of the triggering guide rod 501. A positioning hole is provided on the inner wall of the mounting groove 505, and the limiting slider 503 is mounted on the inner wall of the mounting groove 505 through the positioning hole.

[0026] Specifically, after the clamping shank body 401 is fully inserted into the machine tool chuck, the trigger guide rod 501 performs a downward pressing action. This action causes the return spring 504 to be compressed. During the downward movement of the trigger guide rod 501, the limit slider 503 slides along the offset groove 502. This sliding forces the trigger guide rod 501 to deflect. After the trigger guide rod 501 deflects, it drives the limit stop 507 to deflect as well. This deflection causes the limit stop 507 to leave its original position in the limit groove 506. Once the limit stop 507 leaves the limit groove 506, the limit post 402 is released, thus completing the operation of the entire release mechanism.

[0027] Working principle: During use, the tool changing mechanism can be used to feed the clamping shank body 401 on the drill bit body 1 into the machine tool chuck. After the clamping shank body 401 is fully fed into the machine tool chuck, the trigger guide rod 501 will be pressed down, and the return spring 504 will be compressed. During the downward movement of the trigger guide rod 501, the limit slider 503 will slide along the offset groove 502, thereby forcing the trigger guide rod 501 to deflect. After the trigger guide rod 501 deflects, it will drive the limit stop plate 507 to deflect, so that it leaves the limit groove 506. After the limit stop plate 507 leaves the limit groove 506, the limit column 402 will lose its obstruction. After the limit column 402 loses its obstruction, the tension spring 405 will pull the limit column 402 downward, so that the limit column 402 is embedded in the limit hole 3, keeping the drill bit body 1 and the clamping shank body 401 fixed, which facilitates drilling operations. When the clamping shank body 401 is not fully inserted into the machine tool chuck, the trigger guide rod 501 cannot be pressed down. When the trigger guide rod 501 is not pressed down, the limiting column 402 cannot be inserted into the limiting hole 3, causing the drill bit body 1 to rotate and be mounted on the clamping shank body 401, making it impossible to perform drilling operations. This prevents the clamping shank body 401 from being not fully clamped by the chuck, thus improving the safety of drilling operations.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A deep hole drill bit chuck, comprising a drill bit body (1), characterized in that: The drill bit body (1) is provided with a rotating interface (2), and a limiting hole (3) is provided inside the rotating interface (2) on the drill bit body (1). A clamping shank assembly (4) is rotatably connected to the drill bit body (1). The clamping shank assembly (4) includes a clamping shank body (401) rotatably mounted on the drill bit body (1). A limiting square post (402) is slidably installed inside the clamping shank body (401). A tension spring (405) is sleeved on the limiting square post (402). A triggering mechanism (5) is installed at the upper end of the clamping shank body (401).

2. The deep hole drill bit clamping shank according to claim 1, characterized in that: The bottom of the clamping handle body (401) is provided with a rotating connection part (406), the limiting square post (402) is provided with a spring groove (404), the upper end of the spring groove (404) is fixedly installed with a spring seat (403), the side wall of the clamping handle body (401) is provided with a clamping groove (407), and the upper end of the limiting square post (402) is fixedly installed with a strong magnet (408).

3. The deep hole drill bit clamping shank according to claim 2, characterized in that: The clamping handle body (401) has a movable groove, and the limiting column (402) is slidably installed in the limiting column (402) through the movable groove.

4. A deep hole drill bit clamping shank according to claim 3, characterized in that: The tension spring (405) is sleeved on the limiting square post (402) through the spring groove (404). One end of the tension spring (405) is fixedly installed on the spring seat (403), and the other end of the tension spring (405) is fixedly installed at the bottom of the movable groove in the clamping shank body (401). The rotating connecting part (406) is rotatably installed in the rotating interface (2), and the drill bit body (1) is rotatably installed on the clamping shank body (401) through the rotating connecting part (406).

5. A deep hole drill bit clamping shank according to claim 4, characterized in that: The triggering mechanism (5) includes a mounting groove (505) on the clamping handle body (401) and a limiting groove (506) on the limiting column (402). A reset spring (504) is provided at the bottom of the mounting groove (505). A triggering guide rod (501) is movably installed in the mounting groove (505). An offset sliding groove (502) is provided on the surface of the triggering guide rod (501). A limiting slider (503) is fixedly installed on the inner wall of the mounting groove (505), and the limiting slider (503) is slidably installed in the offset sliding groove (502). A limiting baffle (507) is fixedly installed at the bottom of the triggering guide rod (501).

6. A deep hole drill bit clamping shank according to claim 5, characterized in that: The mounting groove (505) has a positioning hole on its inner wall, and the limiting slider (503) is installed on the inner wall of the mounting groove (505) through the positioning hole.

7. A deep hole drill bit clamping shank according to claim 6, characterized in that: The trigger guide rod (501) is movably mounted on the clamping handle body (401) through the mounting groove (505). One end of the reset spring (504) is connected to the bottom of the mounting groove (505), and the other end of the reset spring (504) is connected to the bottom of the trigger guide rod (501). The limiting plate (507) is embedded in the limiting square post (402) through the limiting groove (506).

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