CNC machining center tool setting compensation device

Abstract

The invention belongs to the technical field of machining equipment, and particularly relates to a CNC machining center tool setting compensation device which comprises a tool apron, a tool body is connected to the inner wall of the tool apron in an inserted mode, a positioning disc is arranged on the front face of the tool apron, an automatic telescopic rod is fixedly installed on the inner wall of the tool apron, a bearing is fixedly installed at one end of the automatic telescopic rod, and the bearing is fixedly installed on the other end of the automatic telescopic rod. The outer wall of the bearing is fixedly connected with the inner wall of a positioning disc, and a three-dimensional scanner is fixedly installed on the inner wall of the back face of the positioning disc. The end part of the cutter body is scanned and detected through the three-dimensional scanner, the three-dimensional scanning technology can obtain complex three-dimensional geometrical shape information of the end part of the cutter, and compared with a traditional single-dimensional detection mode, the conditions of abrasion, deformation and the like of the cutter can be known more comprehensively and accurately; the micro abrasion loss of the cutting edge at the end part of the cutter, the fine change of the geometrical shape and the like are accurately detected, a detailed and accurate data basis is provided for subsequent compensation work, and the whole compensation process realizes high automation.

Description

Technical Field

[0001] This invention belongs to the field of processing equipment technology, specifically a tool setting compensation device for CNC machining centers. Background Technology

[0002] As an indispensable high-end numerical control equipment in modern manufacturing, CNC machining centers have been widely used in many fields such as aerospace, automobile manufacturing, mold processing, and electronic equipment due to their significant advantages such as high precision, high efficiency, and high degree of automation. They can precisely control the movement trajectory of the tool in three-dimensional space through pre-programmed numerical control instructions, realize efficient and precise machining of various complex parts, greatly improve production efficiency and product quality, and promote the development of manufacturing towards intelligence and precision.

[0003] During the machining process in a CNC machining center, the cutting tool directly contacts the workpiece and completes the cutting operation. Therefore, tool wear is inevitable. When tool wear occurs, tool compensation is required. In the existing operation method, the operator manually measures the actual size and position of the tool using tools such as a tool setter, and then inputs the measurement data into the CNC control system for manual compensation adjustment. This method is cumbersome, inefficient, and depends on the operator's experience and skill level, making it prone to human error and difficult to guarantee the accuracy and consistency of compensation.

[0004] Therefore, the present invention provides a tool setting compensation device for CNC machining centers. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a CNC machining center tool setting compensation device, including a tool holder, a tool body inserted into the inner wall of the tool holder, a positioning plate provided on the front side of the tool holder, an automatic telescopic rod fixedly installed on the inner wall of the tool holder, a bearing fixedly installed at one end of the automatic telescopic rod, the outer wall of the bearing being fixedly connected to the inner wall of the positioning plate, and a three-dimensional scanner fixedly installed on the inner wall of the back side of the positioning plate.

[0007] Preferably, the positioning disk has a mounting ring on its front side, and mounting bases are symmetrically fixedly mounted on the outer wall of the mounting ring. Displacement sensors and laser diameter gauges are fixedly mounted on the sides of the mounting bases that are close to each other.

[0008] Preferably, a gear ring is rotatably mounted on the inner wall of the positioning disk, the outer wall of the gear ring is fixedly connected to the outer wall of the mounting ring, a drive motor is fixedly mounted on the inner wall of the positioning disk, and a gear is fixedly mounted on the output end of the drive motor, the teeth of the gear meshing with the teeth of the gear ring.

[0009] Preferably, two rotating plates are provided on the side of the positioning disk away from the tool holder. A torsion spring shaft is installed between each rotating plate and the positioning disk. A protective cover is fixedly installed on the end of each rotating plate away from the torsion spring shaft. The protective covers are respectively sleeved on the outside of the mounting base. Two abutments are fixedly installed on the front of the positioning disk. The abutments respectively abut against the rotating plates.

[0010] Preferably, a force-bearing seat is fixedly installed on the inner wall of the tool body, a groove is formed on the outer wall of the force-bearing seat, and a drive plate is fixedly installed on the inner wall of the positioning plate.

[0011] Preferably, the inner wall of the positioning disk is symmetrically slidably equipped with reinforcing plates, all of which are in contact with the tool body, and the interior of the positioning disk is symmetrically provided with extrusion components and elastic components.

[0012] Preferably, the extrusion assembly includes force-bearing blocks, which are respectively fixedly installed on the inner wall of the reinforcing plate. Extrusion blocks are symmetrically fixedly installed on the front side of the blade holder. The extrusion blocks are inserted into the inner side of the positioning plate and abut against the force-bearing blocks respectively.

[0013] Preferably, the elastic component includes a receiving block symmetrically fixedly installed on the outer wall of the reinforcing plate, the outer wall of the receiving block being slidably connected to the inner wall of the positioning disk, and elastic elements being fixedly installed between the outer wall of the receiving block and the inner wall of the positioning disk, and two sets of elastic abutment blocks being symmetrically fixedly installed on the inner wall of the positioning disk.

[0014] Preferably, the outer wall of the positioning disk is symmetrically provided with insertion slots, and the front of the tool holder is symmetrically fixed with reinforcing columns, the outer walls of the reinforcing columns being inserted into the inner walls of the insertion slots respectively.

[0015] Preferably, a counterweight is fixedly installed on the inner wall of the positioning plate, the counterweight is located directly below the tool body, and the automatic telescopic rod is located directly above the tool body.

[0016] The beneficial effects of this invention are as follows: 1. The tool setting compensation device for CNC machining centers described in this invention uses a 3D scanner to scan and detect the end of the tool body. 3D scanning technology can acquire complex 3D geometric information of the tool end. Compared with the traditional single-dimensional detection method, it can more comprehensively and accurately understand the wear, deformation and other conditions of the tool, and accurately detect the small amount of wear on the cutting edge of the tool end and the subtle changes in geometric shape, so as to provide detailed and accurate data for subsequent compensation work. The entire compensation process is highly automated.

[0017] 2. The CNC machining center tool setting compensation device of the present invention, from the tool holder driving the tool to reset, to the automatic telescopic rod pushing the positioning plate to move, to the tool holder rotating to align the 3D scanner with the tool end for scanning and detection, and finally the control center performing compensation work based on the detection results, all these operations require no manual intervention. This not only greatly improves work efficiency and reduces the time and labor intensity of manual operation, but also avoids measurement errors and operational mistakes caused by human factors, ensuring the accuracy and stability of the compensation work. This real-time compensation mechanism can promptly correct the deviation of the tool during the machining process, ensuring that the tool is always in the best machining state, thereby improving machining accuracy and product quality.

[0018] 3. The CNC machining center tool setting compensation device of the present invention uses a displacement sensor and a laser diameter gauge to detect the tool body from the side, and a 3D scanner to detect the tool body from the end. The 3D scanner obtains the three-dimensional geometric shape information of the tool body from the end, and can accurately capture the wear of the end cutting edge and subtle changes in geometric shape. The displacement sensor and the laser diameter gauge detect the tool body from the side. The displacement sensor can accurately measure the displacement change of the tool in the length direction, and the laser diameter gauge can accurately determine the diameter of the tool. This detection method combining the end and the side achieves multi-dimensional and all-round detection of the tool, providing a richer and more accurate data basis for subsequent compensation work. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a cross-sectional view of the tool holder structure of the present invention; Figure 3 This is a schematic diagram of the back structure of the positioning disk of the present invention; Figure 4 This is a schematic diagram of the structure of the cutting tool body of the present invention; Figure 5 This is a schematic diagram of the front structure of the positioning disk of the present invention; Figure 6This is a cross-sectional view of the positioning disk structure of the present invention; Figure 7 This is another structural cross-sectional view of the positioning disk of the present invention; Figure 8 This is a schematic diagram of the mounting ring structure of the present invention; Figure 9 This is a schematic diagram of the mounting base structure of the present invention; Figure 10 This is a schematic diagram of the structure at the force-bearing seat of the present invention; Figure 11 This is a schematic diagram of the structure of the reinforcing plate of the present invention.

[0021] In the diagram: 1. Tool holder; 2. Tool body; 3. Positioning plate; 4. Automatic telescopic rod; 5. Bearing; 6. 3D scanner; 7. Mounting ring; 8. Mounting base; 9. Gear ring; 10. Drive motor; 11. Gear; 12. Rotating plate; 13. Torsion spring shaft; 14. Protective cover; 15. Support column; 16. Force-bearing seat; 17. Groove; 18. Drive plate; 19. Reinforcing plate; 20. Force-bearing block; 21. Extrusion block; 22. Supporting block; 23. Elastic element; 24. Elastic support block; 25. Reinforcing column; 26. Counterweight block. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0023] like Figures 1 to 3As shown in the embodiment of the present invention, a CNC machining center tool setting compensation device includes a tool holder 1, a tool body 2 inserted into the inner wall of the tool holder 1, a positioning plate 3 on the front of the tool holder 1, an automatic telescopic rod 4 fixedly installed on the inner wall of the tool holder 1, a bearing 5 fixedly installed at one end of the automatic telescopic rod 4, the outer wall of the bearing 5 being fixedly connected to the inner wall of the positioning plate 3, and a 3D scanner 6 fixedly installed on the inner wall of the back of the positioning plate 3. During machining, the tool holder 1 drives the tool body 2 to rotate and contact the workpiece, machining the workpiece through the rotation of the tool body 2. After a period of machining, the tool holder 1 drives the tool body 2 to reset, at which time the automatic telescopic rod 4 is located at the tool body 2. Directly above, the automatic telescopic rod 4 is activated. The automatic telescopic rod 4 extends, pushing the positioning disk 3 away from the tool holder 1. When the positioning disk 3 moves to the outside of the tool body 2, the tool holder 1 rotates. Since the positioning disk 3 and the automatic telescopic rod 4 are connected by a bearing 5, the position of the automatic telescopic rod 4 changes when the tool holder 1 rotates. The positioning disk 3 deflects around the automatic telescopic rod 4. After the positioning disk 3 deflects, the 3D scanner 6 aligns with the end of the tool body 2. At this time, the 3D scanner 6 scans and detects the end of the tool body 2. After the detection result is transmitted to the control center, the control center performs compensation work on the tool body 2 by analyzing the scan data. This invention utilizes the 3D scanner 6 to scan the tool... The end of the main body 2 is scanned and inspected. 3D scanning technology can acquire complex 3D geometric information of the tool tip. Compared to traditional single-dimensional inspection methods, it provides a more comprehensive and accurate understanding of tool wear, deformation, and other conditions. It precisely detects minute wear and subtle geometric changes at the tool tip, providing detailed and accurate data for subsequent compensation work. The entire compensation process is highly automated. From the tool holder 1 resetting the tool, to the automatic telescopic rod 4 moving the positioning disk 3, to the tool holder 1 rotating to align the 3D scanner 6 with the tool tip for scanning and inspection, and finally, the control center performing compensation based on the inspection results, all these operations require no manual intervention. This significantly improves efficiency. This improves work efficiency, reduces manual operation time and labor intensity, and avoids measurement errors and operational mistakes caused by human factors, ensuring the accuracy and stability of compensation work. This real-time compensation mechanism can promptly correct deviations in the tool during processing, ensuring that the tool is always in the best processing state, thereby improving processing accuracy and product quality. Because automatic tool detection is achieved, downtime and manual measurement time during processing are reduced, making the processing process more continuous and efficient. Since the 3D scanner 6 is located on the inner side of the back of the positioning plate 3, the positioning plate 3 will fit against the tool holder 1 during processing, thus keeping the 3D scanner 6 in a sealed state and preventing damage to the 3D scanner 6.

[0024] like Figures 4 to 6As shown, a mounting ring 7 is provided on the front of the positioning disk 3. Mounting seats 8 are symmetrically fixed to the outer wall of the mounting ring 7. Displacement sensors and laser diameter gauges are fixedly mounted on the adjacent sides of the mounting seats 8. The displacement sensors and laser diameter gauges are fixed to the mounting ring 7 via the mounting seats 8. When the automatic telescopic rod 4 extends and pushes the positioning disk 3 to move, the mounting ring 7 moves along with the positioning disk 3, thereby driving the displacement sensors and laser diameter gauges to move. During this movement, the displacement sensors and laser diameter gauges detect the tool body 2 from the side. This side detection of the tool body 2, combined with the end detection of the tool body 2 by the 3D scanner 6, allows the 3D scanner 6 to acquire three-dimensional geometric information from the end of the tool body 2, accurately capturing the wear of the end cutting edge, subtle geometric changes, etc. The displacement sensors and laser diameter gauges, through their side detection of the tool... The main body 2 performs the inspection. The displacement sensor can accurately measure the displacement change of the tool in the length direction, and the laser diameter gauge can accurately determine the diameter of the tool. This detection method, which combines the end and the side, realizes multi-dimensional and all-round detection of the tool, providing a richer and more accurate data foundation for subsequent compensation work. Different detection methods have their own advantages and complement each other. The combination of the two can give full play to their respective advantages and improve the overall accuracy and reliability of the detection. The entire detection process is closely integrated with the automated operation of the device. From the automatic telescopic rod 4 pushing the positioning plate 3, to the displacement sensor, laser diameter gauge and 3D scanner 6 performing detection in sequence, and then to the control center receiving data and performing analysis and processing, a series of operations are completed automatically without human intervention. This highly automated detection process further improves work efficiency and reduces errors and operational mistakes caused by human factors.

[0025] like Figures 5 to 8As shown, a gear ring 9 is rotatably mounted on the inner wall of the positioning disk 3. The outer wall of the gear ring 9 is fixedly connected to the outer wall of the mounting ring 7. A drive motor 10 is fixedly mounted on the inner wall of the positioning disk 3. A gear 11 is fixedly mounted on the output end of the drive motor 10. The teeth of the gear 11 mesh with the teeth of the gear ring 9. When the displacement sensor and the laser diameter gauge are detecting the tool body 2, the drive motor 10 will drive the gear 11 to rotate. Since the gear 11 meshes with the gear ring 9, the rotation of the gear 11 will drive the gear ring 9 to rotate as well. The rotation of the gear ring 9 will drive the mounting ring 7 to rotate, thereby causing the displacement sensor and the laser diameter gauge to rotate. The displacement sensor and the laser diameter gauge can rotate around the tool body 2, realizing the detection of different positions in the circumferential direction of the tool. Previously, the fixed position While stationary detection methods can only acquire information about a localized part of the tool, rotational detection can cover the entire circumference of the tool, providing a comprehensive understanding of its size, shape, and wear at various locations. This offers richer and more accurate data for subsequent analysis and processing. For tools with uneven wear, rotational detection can precisely capture the most severely and lightly worn areas, as well as the wear distribution pattern. By comparing and verifying detection data from multiple locations, the overall inaccuracy caused by errors at a single detection point can be effectively reduced. Detection results from different locations can be cross-referenced. When abnormal data is detected at a certain location, it can be combined with data from other locations for a comprehensive judgment, thereby more accurately determining the actual condition of the tool and improving the reliability of the detection results.

[0026] like Figures 4 to 5 and Figure 9As shown, two rotating plates 12 are arranged on the side of the positioning plate 3 away from the tool holder 1. Torsion spring shafts 13 are installed between each rotating plate 12 and the positioning plate 3. Protective covers 14 are fixedly installed on the ends of the rotating plates 12 away from the torsion spring shafts 13. The protective covers 14 are respectively fitted onto the outer side of the mounting base 8. Two abutments 15 are fixedly installed on the front of the positioning plate 3, and the abutments 15 respectively abut against the rotating plates 12. When the displacement sensor and laser diameter gauge are performing detection work, the driving motor 10 causes the mounting base 8 to rotate through the opening of the protective cover 14, carrying the displacement sensor and laser diameter gauge out from its inside. At this time, the protective cover 14 no longer obstructs the displacement sensor and laser diameter gauge, allowing them to perform detection work normally. During operation, the mounting base 8 will press the protective cover 14 from one side. After being pressed, the protective cover 14 will rotate around the torsion spring shaft 13 in conjunction with the rotating plate 12, thereby preventing and restricting the normal rotation of the mounting base 8. When the mounting base 8 passes the protective cover 14, the protective cover 14 will be reset under the action of the torsion spring shaft 13. After the detection work is completed, the drive motor 10 will drive the mounting base 8 to flip, so that the displacement sensor and laser diameter gauge will re-enter the inside of the protective cover 14 from the opening of the protective cover 14. By moving the displacement sensor and laser diameter gauge to the inside of the protective cover 14, an effective physical isolation barrier is formed, which can protect the displacement sensor and laser diameter gauge and prevent damage to the displacement sensor and laser diameter gauge during processing.

[0027] like Figures 5 to 7 and Figure 10As shown, a force-bearing seat 16 is fixedly installed on the inner wall of the tool body 2, and a groove 17 is formed on the outer wall of the force-bearing seat 16. A drive plate 18 is fixedly installed on the inner wall of the positioning plate 3. When compensation work is required for the tool body 2, the positioning plate 3 is moved by the extension and retraction of the automatic telescopic rod 4. When the positioning plate 3 moves, it will drive the drive plate 18 to move. When the drive plate 18 is aligned with the groove 17, the automatic telescopic rod 4 stops extending and retracting. At this time, the tool holder 1 rotates, causing the positioning plate 3 to deflect. When the positioning plate 3 deflects, the drive plate 18 will follow suit and deflect. After the drive plate 18 deflects, it will enter the inner side of the groove 17. After the drive plate 18 enters the inner side of the groove 17, the fixing components inside the tool holder 1 release the fixation of the tool body 2. At the same time, the automatic telescopic rod 4 extends and retracts, causing the positioning plate 3 to move. The drive plate 18 moves, and since the drive plate 18 enters the inner side of the groove 17, the tool body 2 will move through the force seat 16 when the drive plate 18 moves, thereby realizing automatic compensation of the tool body 2. After the position of the tool body 2 is adjusted, the fixing component fixes the tool body 2 again. A series of operations do not require manual intervention, which not only improves the compensation efficiency, but also reduces the error caused by human factors, making the compensation process more reliable and stable. This automated compensation design is easy to integrate with the control system of the CNC machining center. The control system can automatically control the movement of the automatic telescopic rod 4 and the tool holder 1 according to the detected tool deviation data, realize the automatic planning and execution of the compensation process, and further improve the automation level and intelligence of the machining center.

[0028] like Figures 4 to 7 and Figure 11 As shown, reinforcing plates 19 are symmetrically slidably installed on the inner wall of the positioning disk 3. The reinforcing plates 19 are all in contact with the tool body 2. The positioning disk 3 is symmetrically equipped with a pressing component and an elastic component. When the automatic telescopic rod 4 extends to perform the inspection work on the tool body 2, the reinforcing plates 19 will enter the inner side of the positioning disk 3 under the action of the elastic component, thereby preventing the reinforcing plates 19 from obstructing the movement of the positioning disk 3. When the inspection work is completed and the positioning disk 3 is reset, the pressing component will cause the reinforcing plates 19 to extend from the inner side of the positioning disk 3. The extended reinforcing plates 19 will clamp the tool body 2 from both sides. This symmetrical clamping method can apply pressure evenly to the tool body 2, effectively preventing the tool from shaking, deviating or vibrating during the processing. The reinforcement mechanism can provide stable reinforcement support for the tool under different working conditions. By reinforcing the tool body 2 with the reinforcing plates 19, the vibration and deviating of the tool during the processing can be effectively reduced, thereby reducing the processing error. By suppressing the vibration of the tool, the tool can be processed according to the predetermined trajectory, improving the dimensional accuracy and shape accuracy of the processing.

[0029] like Figures 2 to 3 and Figure 11As shown, the extrusion assembly includes force-bearing blocks 20, which are fixedly installed on the inner wall of the reinforcing plate 19. Extrusion blocks 21 are symmetrically fixedly installed on the front of the tool holder 1. The extrusion blocks 21 are inserted into the inner side of the positioning plate 3 and abut against the force-bearing blocks 20. When the positioning plate 3 moves towards the tool holder 1 to reset, the extrusion blocks 21 insert into the interior of the positioning plate 3 to extrude the force-bearing blocks 20. The force-bearing blocks 20 and the extrusion blocks 21 are engaged by inclined surfaces. This ingenious design allows the extrusion blocks 21 to convert their linear force into a lateral force that pushes the reinforcing plate 19 toward the tool body 2 during insertion, thereby clamping the tool body 2 from both sides and reinforcing the tool body 2. The extrusion assembly clamps the tool body 2 from both sides by pushing the reinforcing plate 19, providing a uniform and stable clamping force for the tool. This stable clamping can effectively prevent the tool from shaking, shifting, or vibrating during processing, thereby ensuring that the tool processes according to the predetermined trajectory and improving the dimensional and shape accuracy of the processing.

[0030] like Figures 6 to 7 and Figure 11 As shown, the elastic component includes receiving blocks 22 symmetrically fixedly installed on the outer wall of the reinforcing plate 19. The outer wall of the receiving blocks 22 is slidably connected to the inner wall of the positioning disk 3. Elastic elements 23 are fixedly installed between the outer wall of the receiving blocks 22 and the inner wall of the positioning disk 3. Two sets of elastic abutments 24 are symmetrically fixedly installed on the inner wall of the positioning disk 3. When the reinforcing plate 19 moves towards the tool body 2 for clamping, the receiving blocks 22 move with the reinforcing plate 19, thereby squeezing the elastic elements 23 and causing them to contract. When performing testing, the force-bearing block 20 moves away from the squeezing block 21, and the reverse elastic force generated by the compression of the elastic element 23 is released. After being released, the elastic element 23 pushes the reinforcing plate 19 into the inner side of the positioning disk 3 through the receiving block 22, avoiding interference with the movement of the positioning disk 3, thereby ensuring the smooth progress of the inspection work. The elastic component and the extrusion component work together to realize the automatic switching of the reinforcing plate 19 in the inspection and processing states. When the positioning disk 3 moves to the tool holder 1 to reset for processing, the extrusion component causes the reinforcing plate 19 to extend out to hold the tool. When the positioning disk 3 is performing inspection work, the elastic component automatically retracts the reinforcing plate 19 into the inner side of the positioning disk 3. This automatic state switching does not require manual intervention and greatly improves the automation level of the device.

[0031] like Figures 1 to 7 As shown, the outer wall of the positioning disk 3 is symmetrically provided with insertion slots, and the front of the tool holder 1 is symmetrically fixed with reinforcing columns 25. The outer wall of the reinforcing column 25 is inserted into the inner wall of the insertion slot. When the positioning disk 3 is reset, the reinforcing column 25 is inserted into the inner side of the positioning disk 3 through the action of the insertion slot. The reinforcing column 25 limits the positioning disk 3 and prevents the positioning disk 3 from swinging when performing workpiece processing.

[0032] like Figures 6 to 7 As shown, a counterweight 26 is fixedly installed on the inner wall of the positioning disk 3. The counterweight 26 is located directly below the tool body 2, and the automatic telescopic rod 4 is located directly above the tool body 2. The counterweight 26, fixedly installed on the inner wall of the positioning disk 3 and located directly below the tool body 2, increases the overall weight of the positioning disk 3. The heavier positioning disk 3 has greater inertia, which can effectively resist vibration interference, allowing the positioning disk 3 to maintain a relatively stable state during the testing process. Furthermore, the counterweight 26 helps the positioning disk 3 maintain a stable posture during testing, ensuring the normal operation of the testing equipment and sensors on it, and preventing tilting from causing damage. To reduce measurement errors, the counterweight 26 is located directly below the tool body 2. It can balance the force on the positioning disk 3 in the vertical direction and prevent the positioning disk 3 from tilting due to the shift of the center of gravity. When adjusting the position of the tool body 2, the drive plate 18 moves in the groove 17. The counterweight 26 increases the weight of the positioning disk 3, making the interaction between the positioning disk 3 and the drive plate 18 more stable. When the drive plate 18 applies an adjustment force to the tool body 2, the positioning disk 3, due to its large weight, can provide a stable reaction force support, preventing the drive plate 18 from sliding out of the groove 17 due to excessive force.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tool setting compensation device for a CNC machining center, comprising a tool holder (1), characterized in that: The inner wall of the tool holder (1) is fitted with a tool body (2), the front of the tool holder (1) is provided with a positioning plate (3), the inner wall of the tool holder (1) is fixedly installed with an automatic telescopic rod (4), one end of the automatic telescopic rod (4) is fixedly installed with a bearing (5), the outer wall of the bearing (5) is fixedly connected to the inner wall of the positioning plate (3), and the inner wall of the back of the positioning plate (3) is fixedly installed with a three-dimensional scanner (6).

2. The tool setting compensation device for a CNC machining center according to claim 1, characterized in that: The positioning disk (3) is provided with a mounting ring (7) on the front side. Mounting seats (8) are symmetrically fixed on the outer wall of the mounting ring (7). Displacement sensors and laser diameter measuring instruments are fixedly installed on the sides of the mounting seats (8) that are close to each other.

3. The tool setting compensation device for a CNC machining center according to claim 2, characterized in that: A gear ring (9) is rotatably mounted on the inner wall of the positioning disk (3). The outer wall of the gear ring (9) is fixedly connected to the outer wall of the mounting ring (7). A drive motor (10) is fixedly mounted on the inner wall of the positioning disk (3). A gear (11) is fixedly mounted on the output end of the drive motor (10). The teeth of the gear (11) mesh with the teeth of the gear ring (9).

4. The tool setting compensation device for a CNC machining center according to claim 2, characterized in that: Two rotating plates (12) are provided on the side of the positioning plate (3) away from the tool holder (1). A torsion spring shaft (13) is installed between the rotating plate (12) and the positioning plate (3). A protective cover (14) is fixedly installed on the end of the rotating plate (12) away from the torsion spring shaft (13). The protective cover (14) is respectively sleeved on the outside of the mounting base (8). Two abutments (15) are fixedly installed on the front of the positioning plate (3). The abutments (15) abut against the rotating plate (12) respectively.

5. The tool setting compensation device for a CNC machining center according to claim 1, characterized in that: The inner wall of the tool body (2) is fixedly installed with a force-bearing seat (16), the outer wall of the force-bearing seat (16) is provided with a groove (17), and the inner wall of the positioning plate (3) is fixedly installed with a drive plate (18).

6. The tool setting compensation device for a CNC machining center according to claim 1, characterized in that: The inner wall of the positioning disk (3) is symmetrically slidably fitted with reinforcing plates (19), and the reinforcing plates (19) are all in contact with the tool body (2). The positioning disk (3) is symmetrically provided with extrusion components and elastic components.

7. A tool setting compensation device for a CNC machining center according to claim 6, characterized in that: The extrusion assembly includes a force-bearing block (20), which is fixedly installed on the inner wall of the reinforcing plate (19). The front of the knife holder (1) is symmetrically fixedly equipped with extrusion blocks (21), which are inserted into the inner side of the positioning plate (3). The extrusion blocks (21) abut against the force-bearing blocks (20).

8. A tool setting compensation device for a CNC machining center according to claim 6, characterized in that: The elastic component includes a receiving block (22) symmetrically fixedly installed on the outer wall of the reinforcing plate (19). The outer wall of the receiving block (22) is slidably connected to the inner wall of the positioning disk (3). An elastic element (23) is fixedly installed between the outer wall of the receiving block (22) and the inner wall of the positioning disk (3). Two sets of elastic abutments (24) are symmetrically fixedly installed on the inner wall of the positioning disk (3).

9. A tool setting compensation device for a CNC machining center according to claim 1, characterized in that: The outer wall of the positioning disk (3) is symmetrically provided with insertion slots, and the front of the knife holder (1) is symmetrically fixed with reinforcing columns (25), and the outer wall of the reinforcing columns (25) is respectively inserted into the inner wall of the insertion slot.

10. A tool setting compensation device for a CNC machining center according to claim 1, characterized in that: The inner wall of the positioning plate (3) is fixedly installed with a counterweight (26), which is located directly below the tool body (2), and the automatic telescopic rod (4) is located directly above the tool body (2).

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