Anti-collision cutter rest for machining

Abstract

The invention relates to the technical field of machining, in particular to a machining anti-collision cutter rest which comprises a base frame seat fixedly installed on a machine tool carriage, a movable seat plate installed on the base frame seat in a sliding mode, a positioning clamping seat installed on the movable seat plate and a fastening bolt. The plurality of fastening bolts are arranged on the positioning clamping seat, the positioning clamping seat and the fastening bolts are used for fixing a cutter and a front detection mechanism, the front detection mechanism is mounted on the base frame seat, and the front detection mechanism can be in contact with an obstacle on a machining path before the cutter. The positioning clamping base is arranged on the base frame base to replace the tool to move on a machining path in advance, the urgent retreating mechanism is arranged on the positioning clamping base and the base frame base, the tool collision accident is prevented through double insurance in the mode that prevention and timely remedy are combined, and the protection effect is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of machining technology, and more specifically, to a machining anti-collision tool holder. Background Technology

[0002] In CNC machine tools, machining centers, and other machining equipment, cutting tools are mounted on tool holders. During high-speed, high-precision machining processes, the cutting tool is highly susceptible to unexpected rigid collisions with the workpiece, fixture, chuck, tailstock, or other machine tool components during its movement, known as "tool collisions." A minor collision can result in tool chipping and workpiece scrap, while a major collision can damage the spindle, tool holder, or even the machine tool structure, causing significant economic losses and production interruptions.

[0003] The tool post is a core component of CNC machine tools. The anti-collision function aims to proactively warn, brake, or adjust the path of the tool before a collision is possible, thus avoiding collisions. Traditional tool posts mainly rely on the preset path control of the CNC system, but in actual machining, due to factors such as programming errors, workpiece clamping deviations, and machine tool vibrations, there is still a risk of collision, and the protection effect urgently needs to be improved. Summary of the Invention

[0004] The purpose of this invention is to provide a machining anti-collision tool holder to solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention provides a machining anti-collision tool holder, comprising: Base frame, which is fixedly mounted on the machine tool slide; A movable base plate, which is slidably mounted on the base frame; A positioning bracket, which is mounted on the movable base plate; Fastening bolts, a plurality of said fastening bolts are disposed on said positioning bracket, said positioning bracket and said fastening bolts are used to fix the cutting tool; A front-mounted contact mechanism is mounted on the base frame. The front-mounted contact mechanism can contact obstacles on the machining path before the cutting tool, so as to replace the cutting tool moving on the machining path first. A rapid retraction mechanism is provided, which is mounted on the positioning chuck and the base frame, and is connected to the moving base plate. The rapid retraction mechanism is used to attach to the cutting tool and monitor its vibration status in real time. The emergency retraction mechanism can quickly pull the moving seat plate backward relative to the obstacle, so that it gradually moves away from the obstacle.

[0006] Furthermore, the pre-detection mechanism includes: A base, which is connected to the side of the base frame; An external kit, which is mounted on the base and located next to the positioning slot; An internal moving member, which is slidably inserted into the outer assembly; A stop ring is mounted on the inner moving member; A spring, one end of which is fixedly installed inside the external kit and the other end is connected to the stop ring, and the spring is sleeved on the inner moving rod; The contact is installed at the front end of the internal moving rod and is located next to the tip of the cutting tool. During machining, the contact moves ahead of the cutting tool along the machining path. A micro switch is disposed within the external assembly and located behind the tail of the internal moving rod. The micro switch is connected to the machine tool's control system, and the push rod of the micro switch faces the tail of the internal moving rod. When the internal moving rod continues to move backward, it presses down the push rod of the micro switch, causing it to move downward.

[0007] Furthermore, the pre-detection mechanism also includes: A push-button buzzer, wherein the push-button buzzer is mounted on the external kit and the button of the push-button buzzer extends into the external kit, and the push-button buzzer is located in front of the micro switch; A pressure plate is mounted on the inner wall of the outer kit and abuts the button of the push-button buzzer. The pressure plate is obliquely connected to the inner wall of the outer kit and is elastic. As the internal moving rod continues to move backward, it squeezes the pressure plate, thereby pressing the button of the push-button buzzer through the pressure plate.

[0008] Furthermore, a metal shaping plate is symmetrically installed on the internal moving rod near the contact, and the metal shaping plate has a hemispherical protrusion.

[0009] Furthermore, the emergency retreat mechanism includes: A contacting component, which is movably mounted on the front end face of the positioning bracket; A piezoelectric thin film sensor is mounted on the abutment, and when the abutment is pushed down, it can be pushed toward the cutter on the positioning bracket, so that the piezoelectric thin film sensor contacts the cutter. A driver is mounted on the base, and the piezoelectric thin-film sensor is connected to the driver; A force transmission component is installed on the output end of the driver and connected to the end face of the moving base plate. When the driver starts, the force transmission component pulls the moving base plate backward.

[0010] Furthermore, the actuator is a small impact cylinder.

[0011] Furthermore, the abutment is a groove-shaped part with openings on both sides, and the piezoelectric thin film sensor is located on the bottom of the groove of the abutment; Pushing down the abutment allows it to be fully secured onto the cutter.

[0012] Furthermore, a motor is installed inside the base frame, and a rod is connected to the output shaft of the motor. Several locking teeth are installed on the rod, and the locking teeth are inserted into the moving base plate. When the motor is started and the rod is rotated, the locking tooth can be rotated out from the moving base plate.

[0013] Furthermore, the base includes: A rail, which is connected to the side of the base frame; A sliding block, which is slidably mounted on the rail; A support beam is mounted to the sliding block via a damping pivot, and the external kit is mounted on the support beam. A hand-tightening bolt is screwed onto the end of the rail and rotatably connected to the sliding block via a bearing.

[0014] Compared with the prior art, the present invention has the following beneficial effects: This invention utilizes a pre-positioned detection mechanism that moves in front of the cutting tool along the same machining path as the tool. This allows the mechanism to contact all obstacles on the machining path before the tool, verifying the safety of the machining path in place of the tool. Furthermore, it can promptly stop machining when there is a risk of collision, thus physicalizing and pre-positioning the detection function to ensure that the tool is stopped and machining is paused in time when there is a risk of collision, thereby avoiding collision. The rapid retraction mechanism can monitor the vibration state of the cutting tool in real time during the machining process. Once the tool undergoes a rigid collision with an obstacle on the path, causing abnormal vibration, it can quickly and promptly control the tool to move away from the obstacle, effectively curbing the collision tendency and preventing collision. This invention employs a combination of prevention and timely remediation, using double insurance to prevent knife collision accidents, thus greatly improving the protective effect. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 A perspective view of the present invention is shown; Figure 2 A second perspective view of the present invention is shown; Figure 3 A third perspective view of the present invention is shown; Figure 4 A fourth perspective view of the present invention is shown; Figure 5 A fifth perspective view of the present invention is shown; Figure 6 A sixth perspective view of the present invention is shown; Figure 7 A seventh perspective view of the present invention is shown; Figure 8 An eighth perspective view of the present invention is shown; Figure 9 The present invention is shown. Figure 2 Enlarged view of point A; Figure 10 The present invention is shown. Figure 2 Enlarged view of point B; Figure 11 The present invention is shown. Figure 3 Enlarged view of point C; Figure 12 The present invention is shown. Figure 4 Enlarged view of point D; Figure 13 The present invention is shown. Figure 5 Enlarged view of point E; Figure 14 The present invention is shown. Figure 6 Enlarged view at point F; Figure 15 The present invention is shown. Figure 8 Enlarged view of point G.

[0017] In the figure, the same reference numerals represent the same structural element, wherein: 1. Base frame; 2. Machine tool slide; 3. Moving base plate; 4. Positioning bracket; 5. Fastening bolt; 6. Cutting tool; 7. Front probe mechanism; 71. Base; 711. Rail; 712. Sliding block; 713. Support beam; 714. Hand-tightening bolt; 72. External kit; 73. Internal moving rod; 74. Fixed and stopped ring; 75. Spring; 76. Contact; 77. Micro switch; 78. Push-button buzzer; 79. Pressing plate; 8. Quick retraction mechanism; 81. Contact piece; 82. Piezoelectric film sensor; 83. Driver; 84. Force transmission component; 9. Metal shaped flexible plate; 10. Hemispherical protrusion; 11. Motor; 12. Rod body; 13. Locking tooth plate. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0019] like Figures 1-15 As shown, a machining anti-collision tool holder includes: Base frame 1, which is fixedly mounted on the machine tool slide 2; Movable base plate 3, which is slidably mounted on the base frame 1; Positioning bracket 4, which is mounted on the moving base plate 3; Fastening bolts 5, several of the fastening bolts 5 are set on the positioning bracket 4, the positioning bracket 4 and the fastening bolts 5 are used to fix the tool 6, the machine tool slide 2 is an important existing moving part on the machine tool and machining center, responsible for bearing the tool holder and the tool 6 and realizing precise linear motion, ensuring stability and accuracy in the machining process; A front-mounted contact mechanism 7 is mounted on the base 1. The front-mounted contact mechanism 7 can contact obstacles on the machining path before the tool 6, so as to replace the tool 6 moving on the machining path first. A rapid retraction mechanism 8 is disposed on the positioning bracket 4 and the base frame 1, and is connected to the moving base plate 3. The rapid retraction mechanism 8 is used to attach to the cutting tool 6 and monitor the vibration state of the cutting tool 6 in real time. The rapid retraction mechanism 8, when activated, quickly pulls the moving base plate 3 backward relative to the obstacle, gradually moving it away from the obstacle. After the tool 6 is placed into the positioning holder 4, the fastening bolt 5 is tightened. The positioning holder 4 and the fastening bolt 5 clamp and hold the tool 6 firmly in place, ensuring smooth machining. The front-mounted probing mechanism 7 moves in front of the tool 6 along the same machining path, thus contacting all obstacles on the machining path before the tool 6, verifying the safety of the machining path on behalf of the tool 6, and addressing any collision risks on the machining path. Timely stopping of processing, by physicalizing and pre-positioning the detection function, ensures that the tool 6 can be stopped and processing paused in a timely manner when there is a risk of tool collision, thereby avoiding tool collision; the rapid retraction mechanism 8 can monitor the vibration state of the tool 6 in real time during the processing. Once the tool 6 has a rigid collision with an obstacle in the path and begins to vibrate abnormally, it can be controlled in a timely and rapid manner to move the tool 6 away from the obstacle, thereby effectively curbing the tendency of tool collision and avoiding tool collision; the present invention adopts a double insurance to prevent tool collision accidents by combining prevention and timely remediation, which greatly improves the protection effect.

[0020] Optionally, the pre-detection mechanism 7 includes: Base 71, which is connected to the side of the base frame 1; External kit 72, which is mounted on the base 71 and located next to the positioning bracket 4; An internal moving rod 73 is slidably inserted into the external assembly 72; A stop ring 74 is mounted on the inner moving member 73; Spring 75, one end of which is fixedly installed inside the external kit 72 and the other end is connected to the stop ring 74, and spring 75 is sleeved on the inner moving rod 73; Contact 76 is installed at the front end of the internal moving rod 73 and is located next to the tip of the cutting tool 6. During machining, contact 76 moves ahead of the cutting tool 6 along the machining path. A micro switch 77 is disposed within the external kit 72 and located behind the tail of the internal moving rod 73. The micro switch 77 is connected to the machine tool's control system, and the push rod of the micro switch 77 faces the tail of the internal moving rod 73. When the internal moving rod 73 continues to move backward, it presses down the push rod of the micro switch 77, causing it to move downward. The micro switch 77 is an existing, compact, fast and sensitive switch. Its core structure includes a housing, contacts, moving contact, actuating spring, push rod, etc., where the push rod is the part that receives external pressure. The micro switch 77 is connected to the machine tool's control system and can control the machine tool's control system through the micro switch 77. After the tool 6 is fixedly installed, the contact 76 is flush with the tip of the tool 6, and the position of the contact 76 is slightly ahead of the tool 6. When the machine tool and machining center system are started and machining begins, the base 1 starts to move under the drive of the machine tool slide 2. The contact 76 can then start to move synchronously with the tool 6, and the contact 76 moves ahead of the tool 6 along the same machining path, thus avoiding all obstacles (such as workpieces, fixtures, chucks, tailstocks, or other obstacles) on the machining path before the tool 6. The inner moving rod 73 is pressed into the outer kit 72 by the inner moving rod 73, replacing the tool 6, to verify the safety of the machining path. When the moving path is abnormal and there is too much contact with obstacles, the inner moving rod 73 will be pressed into the outer kit 72. At this time, the inner moving rod 73 will press the push rod of the micro switch 77, thereby triggering the micro switch 77. The micro switch 77 then transmits a signal to the machine tool's control system, specifically sending an emergency stop signal to the machine tool's control system to stop the machine tool or machining center in an emergency. This ensures that machining can be stopped in time when there is a risk of tool collision on the machining path, making the detection function physical and pre-positioned, preventing the tool 6 from moving directly on the machining path first, effectively mitigating the risk and preventing tool collision accidents. After machining is completed, the spring 75 returns to its original state, thereby pushing the inner moving rod 73 back to its original state, keeping the contact 76 flush with the tip of the tool 6, and the next machining can be carried out directly without the need for manual reset of the inner moving rod 73 and the contact 76.

[0021] Optionally, the pre-detection mechanism 7 further includes: A push-button buzzer 78 is mounted on the external kit 72, with the button of the push-button buzzer 78 extending into the external kit 72, and the push-button buzzer 78 is located in front of the micro switch 77. A pressure plate 79 is mounted on the inner wall of the outer kit 72 and abuts the button of the push-button buzzer 78. The pressure plate 79 is obliquely connected to the inner wall of the outer kit 72 and is elastic. When the internal moving rod 73 continues to move backward, it squeezes the pressure plate 79, thereby pressing the button of the push-button buzzer 78 through the pressure plate 79. When the machining path is abnormal and the internal moving rod 73 tends to be excessively or abnormally pressed into the outer kit 72, the internal moving rod 73 will squeeze the elastic pressure plate 79 towards the inner wall of the outer kit 72 before pressing the push rod of the micro switch 77, thereby pressing the button of the push-button buzzer 78, triggering the push-button buzzer 78 to emit a sharp alarm sound, effectively alerting the operators on site, reminding them of the risk of tool collision, helping operators to pay attention to the movement of the tool 6 and improve the timeliness of emergency stop operations, further improving the prevention and protection effect, and effectively reducing the possibility of tool collision accidents.

[0022] Optionally, a metal shaping plate 9 is symmetrically installed on the internal moving rod 73 near the contact 76. The metal shaping plate 9 has a hemispherical protrusion 10. The operator can adapt the metal shaping plate 9 to the actual position of obstacles on the processing site. After being twisted, the metal shaping plate 9 is immediately shaped, so that the hemispherical protrusion 10 and the contact 76 have the same contact path for obstacles, increasing the contact points with obstacles, thereby making more comprehensive and reasonable contact with obstacles on the path, improving the prevention effect and the effect of verifying the safety of the processing path, and making the anti-collision knife function more reliable.

[0023] Optionally, the emergency retraction mechanism 8 includes: Abutting component 81 is movably mounted on the front end face of the positioning bracket 4; A piezoelectric thin film sensor 82 is mounted on the abutment member 81. When the abutment member 81 is pushed down, it can be pushed toward the cutter 6 on the positioning bracket 4, so that the piezoelectric thin film sensor 82 contacts the cutter 6. A driver 83 is mounted on the base 1, and the piezoelectric thin film sensor 82 is connected to the driver 83; The force transmission component 84 is installed on the output end of the driver 83 and connected to the end face of the moving base plate 3. When the driver 83 starts, it pulls the moving base plate 3 backward through the force transmission component 84. The piezoelectric thin film sensor 82 is an existing dynamic strain sensor that is highly sensitive to changing forces or deformations. After the tool 6 is installed, the abutment component 81 is pushed down until it rests against the tool 6, so that the piezoelectric thin film sensor 82 contacts the tool 6. The piezoelectric thin film sensor 82 is used to monitor the vibration state of the tool 6 in real time during processing. Once the tool 6 has a rigid collision with an obstacle in the processing path, causing an abnormality to occur... During vibration, the piezoelectric film sensor 82 promptly feeds back the signal to the driver 83, controlling the driver 83 to start. Through the force transmission component 84, the moving base plate 3 is pulled backward along the base frame 1, thereby pulling the moving base plate 3 away from the obstacle as a whole. This causes the positioning chuck 4 and the tool 6 to quickly move away from the obstacle, effectively curbing the tendency to collide with the tool and preventing the occurrence of collision accidents. By combining timely remediation with the effective prevention of the front-mounted detection mechanism 7, a double insurance is used to prevent accidents and ensure the protective effect. Under normal conditions, the driver 83 remains stationary, fixing the moving base plate 3 in its current position to prevent unnecessary movement of the moving base plate 3 during processing and ensure smooth processing.

[0024] Optionally, the driver 83 is a small impact cylinder. An impact cylinder is an existing high-impact pneumatic actuator with high instantaneous impact force. The driver 83 of the small impact cylinder is used to pull the moving base plate 3 backward, thereby ensuring that the moving base plate 3 is pulled away from the obstacle quickly, ensuring that the tendency to hit the blade can be effectively curbed in time, and ensuring the reliability of timely remediation.

[0025] Optionally, the abutment 81 is a groove with openings on both sides, and the piezoelectric thin film sensor 82 is located on the bottom of the groove of the abutment 81; The downward push of the abutment 81 can completely attach it to the cutter 6, so that the abutment 81 covers the cutter 6 and has more contact with the cutter 6. This allows the piezoelectric film sensor 82 to also sense the vibration state of the cutter 6 through the abutment 81, thereby ensuring the accuracy and reliability of the vibration state monitoring of the cutter 6, and further ensuring that the tendency to collide with the cutter can be effectively and timely curbed.

[0026] Optionally, a motor 11 is provided inside the base frame 1, and a rod 12 is connected to the output shaft of the motor 11. A plurality of locking teeth 13 are provided on the rod 12, and the locking teeth 13 are inserted into the moving base plate 3. When the motor 11 is started to rotate the rod 12, the locking tooth 13 can be unscrewed from the moving base plate 3. The piezoelectric thin film sensor 82 is connected to the motor 11. Under normal conditions, the locking tooth 13 is kept inserted into the moving base plate 3. The locking tooth 13 is used to reinforce the moving base plate 3 based on the driver 83, further ensuring the stability of the moving base plate 3 and preventing unnecessary displacement of the moving base plate 3 during processing, which would affect the processing. When the piezoelectric thin film sensor 82 detects abnormal vibration of the tool 6, it synchronously controls the motor 11 to start, rotates the rod 12 to unscrew the locking tooth 13 from the moving base plate 3, releases the locking tooth 13 from the moving base plate 3, and ensures that the moving base plate 3 can be pulled back.

[0027] Optionally, the base 71 includes: Rail 711, which is connected to the side of the base frame 1; Sliding block 712, which is slidably mounted on the rail 711; A support beam 713 is mounted on the sliding block 712 via a damping pivot, and an external kit 72 is mounted on the support beam 713. A hand-tightening bolt 714 is screwed onto the end of the rail 711 and rotatably connected to the sliding block 712 via a bearing. Tightening the hand-tightening bolt 714 pulls the sliding block 712 back and forth on the rail 711, thereby causing the support beam 713 to move back and forth. Through the damping shaft between the support beam 713 and the sliding block 712, force can be applied to rotate the support beam 713, thereby adjusting the forward extension length and pitch angle of the contact 76 and the hemispherical protrusion 10. This ensures that the contact 76 and the tip of the tool 6 are flush and in the best contact state with obstacles through rapid adjustment, thus ensuring the effectiveness of verifying the safety of the machining path and preventing tool collision accidents.

[0028] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A machining anti-collision tool holder, characterized in that, include: Base frame (1), which is fixedly installed on the machine tool slide (2); The movable base plate (3) is slidably mounted on the base frame (1); Positioning bracket (4), the positioning bracket (4) is mounted on the moving base plate (3); Fastening bolts (5), a plurality of the fastening bolts (5) are disposed on the positioning bracket (4), the positioning bracket (4) and the fastening bolts (5) are used to fix the cutting tool (6); A front-mounted contact mechanism (7) is installed on the base (1). The front-mounted contact mechanism (7) can contact the obstacles on the machining path before the tool (6) so as to replace the tool (6) moving on the machining path first. A rapid retraction mechanism (8) is provided on the positioning bracket (4) and the base frame (1), and is connected to the moving base plate (3). The rapid retraction mechanism (8) is used to attach to the cutting tool (6) and monitor the vibration state of the cutting tool (6) in real time. The emergency retraction mechanism (8) can quickly pull the moving seat plate (3) back relative to the obstacle so that it gradually moves away from the obstacle.

2. The machining anti-collision tool holder as described in claim 1, characterized in that, The pre-detection mechanism (7) includes: The base (71) is connected to the side of the base frame (1); An external kit (72) is mounted on the base (71) and located next to the positioning bracket (4); An internal moving member (73) is slidably inserted into the external assembly (72); A stop ring (74) is mounted on the inner moving member (73); A spring (75) is fixedly installed at one end inside the outer kit (72) and connected at the other end to the stop ring (74), and the spring (75) is sleeved on the inner moving rod (73); Contact (76), the contact (76) is installed at the front end of the internal moving rod (73), and the contact (76) is located next to the tip of the cutting tool (6). During processing, the contact (76) moves ahead of the cutting tool (6) along the processing path. A micro switch (77) is disposed inside the outer kit (72) and located behind the tail of the inner moving rod (73). The micro switch (77) is connected to the control system of the machine tool, and the push rod of the micro switch (77) faces the tail of the inner moving rod (73). When the internal moving rod (73) continues to move backward, it presses down the push rod of the micro switch (77), causing it to move downward.

3. The machining anti-collision tool holder as described in claim 2, characterized in that, The pre-detection mechanism (7) also includes: A push-button buzzer (78) is mounted on the external kit (72), and the button of the push-button buzzer (78) extends into the external kit (72), and the push-button buzzer (78) is located in front of the micro switch (77). A pressure plate (79) is mounted on the inner wall of the outer kit (72) and abutted on the button of the push-button buzzer (78). The pressure plate (79) is obliquely connected to the inner wall of the outer kit (72). The pressure plate (79) is elastic. When the internal moving rod (73) continues to move backward, it squeezes the pressing plate (79), thereby pressing the button of the push-button buzzer (78) through the pressing plate (79).

4. The machining anti-collision tool holder as described in claim 3, characterized in that, A metal shaping plate (9) is symmetrically installed on the internal moving rod (73) near the contact (76), and the metal shaping plate (9) has a hemispherical protrusion (10).

5. A machining anti-collision tool holder as described in claim 4, characterized in that, The emergency retreat mechanism (8) includes: Abutting component (81) is movably mounted on the front end surface of the positioning bracket (4); A piezoelectric thin film sensor (82) is mounted on the abutment (81). When the abutment (81) is pushed down, it can be pushed onto the cutter (6) on the positioning base (4) so ​​that the piezoelectric thin film sensor (82) contacts the cutter (6). A driver (83) is mounted on the base (1), and the piezoelectric thin film sensor (82) is connected to the driver (83); Force transmission component (84) is installed on the output end of the driver (83) and connected to the end face of the moving base plate (3). When the driver (83) starts, it pulls the moving base plate (3) backward through the force transmission component (84).

6. A machining anti-collision tool holder as described in claim 5, characterized in that, The actuator (83) is a small impact cylinder.

7. A machining anti-collision tool holder as described in claim 6, characterized in that, The abutment (81) is a groove-shaped part with openings on both sides, and the piezoelectric thin film sensor (82) is located on the bottom of the groove of the abutment (81); Pushing down the abutment (81) allows it to be fully secured onto the cutter (6).

8. A machining anti-collision tool holder as described in claim 7, characterized in that, A motor (11) is installed inside the base frame (1). A rod (12) is connected to the output shaft of the motor (11). Several locking teeth (13) are installed on the rod (12). The locking teeth (13) are inserted into the moving base plate (3). When the motor (11) is started to rotate the rod (12), the locking tooth (13) can be rotated out from the moving base plate (3).

9. A machining anti-collision tool holder as described in claim 8, characterized in that, The base (71) includes: Rail (711), the rail (711) is connected to the side of the base (1); A sliding block (712) is slidably mounted on the rail (711); A support beam (713) is mounted on the sliding block (712) via a damping pivot, and an external kit (72) is mounted on the support beam (713). A hand-tightening bolt (714) is screwed onto the end of the rail (711) and rotatably connected to the sliding block (712) via a bearing.

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