CNC machine tool magazine

Abstract

This invention relates to the field of CNC machine tool technology, and more particularly to a CNC machine tool tool magazine, comprising a tool holder and an air blowing pipeline. A mounting bracket is integrally connected to the tool holder, and a drive unit is provided on the mounting bracket. A protective box is mounted on the mounting bracket via the drive unit, and a first electric cylinder is housed within the protective box. A probe is fixedly connected to the output end of the first electric cylinder. A cleaning unit is provided on the mounting bracket and the protective box, and the cleaning unit controls the air blowing pipeline to adjust the air blowing angle according to the stroke of the first electric cylinder. This invention uses a probe to monitor the tool length and breakage status in real time, and dynamically adjusts the air blowing angle of the air blowing pipeline based on the position of the probe during the monitoring process. This ensures that the probe continuously receives effective air blowing cleaning during operation, helping to maintain the cleanliness of the probe in the working state, thereby improving the reliability and accuracy of the probe monitoring process.

Description

Technical Field

[0001] This invention relates to the field of CNC machine tool technology, and more particularly to CNC machine tool magazines. Background Technology

[0002] A CNC machine tool is an automated machine tool that operates through a digital control system. This control system can logically process programs with control codes or other symbolic instructions, decode them into coded numbers, and input them to the CNC device via an information carrier. The tool magazine is one of the supporting devices of the CNC machine tool.

[0003] Existing tool magazines are equipped with probes to monitor tool length and breakage. However, coolant residue or iron filings may adhere to the tool surface or measurement contact point, causing deviations in the probe's detection results. When measuring length, the length may be false due to coolant residue or iron filings. When detecting breakage, foreign objects may obscure the tool and misjudge it as intact. Such interference can directly affect machining accuracy and may even cause batch workpieces to exceed tolerances or tool collision accidents. Summary of the Invention

[0004] The purpose of this invention is to solve the problem in the prior art where coolant residue or iron filings adhere to the tool surface or measurement contact point, causing deviations in the probe detection results, and proposes a CNC machine tool magazine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A CNC machine tool tool magazine includes a tool holder and an air blowing pipe. A mounting bracket is integrally connected to the tool holder, and a drive unit is provided on the mounting bracket. A protective box is mounted on the mounting bracket via the drive unit. A first electric cylinder is housed in the protective box, and a probe is fixedly connected to the output end of the first electric cylinder. A mounting shaft is rotatably mounted on the top surface of the protective box, and a protective cover is fixedly connected to the mounting shaft. A control unit is provided in the protective box to control the opening and closing of the protective cover according to the extension and retraction movement of the first electric cylinder. A cleaning unit is provided on the mounting bracket and the protective box to control the air blowing pipe to adjust the air blowing angle according to the movement stroke of the first electric cylinder. A detector for detecting tool specifications and surface deposits is fixedly connected to the mounting bracket.

[0007] Preferably, the mounting bracket has an L-shaped structure, and the lateral section of the mounting bracket is located below the tool holder.

[0008] Preferably, the driving unit includes:

[0009] The first slide groove is formed on the transverse section of the mounting bracket;

[0010] A first slider is slidably mounted on the first slide groove;

[0011] The second electric cylinder is fixedly installed on the bottom surface of the horizontal section of the mounting bracket, and the output end of the second electric cylinder is fixedly connected to the first slider.

[0012] An inverted bracket, which is fixedly connected to the top surface of the first slider;

[0013] The second slide groove is formed on the I-shaped frame;

[0014] The second slider is slidably installed in the second slide groove, and the second slider is fixedly connected to the protective box;

[0015] The third electric cylinder is fixedly connected to the C-shaped frame, and its output end is fixedly connected to the second slider.

[0016] Preferably, the protective box is a hollow rectangular box structure with an opening at the top.

[0017] Preferably, the control unit includes:

[0018] A slide rail, which is fixedly connected to the protective cover plate;

[0019] A movable block, which is slidably mounted on the slide rail;

[0020] A connecting rod, wherein the connecting rod pin is installed between the bottom surface of the movable block and the output end of the first electric cylinder.

[0021] Preferably, a limiting plate is fixedly connected to the top surface of the protective box and moves against the protective cover plate; an abutting rod is fixedly installed on the mounting shaft; a force-bearing rod is fixedly connected to the outer wall of the protective box; the abutting rod moves against the force-bearing rod; and a pressure sensor is embedded in the force-bearing rod and connected to the air blowing pipeline signal.

[0022] Preferably, the cleaning unit includes:

[0023] A turntable, which is rotatably mounted on the mounting bracket;

[0024] A first motor is fixedly mounted on the turntable, and the output end of the first motor is fixedly connected to the center position of the turntable.

[0025] The second motor is fixedly mounted on the turntable, and its output end is fixedly connected to the air blowing pipe.

[0026] Preferably, the first motor is installed longitudinally, the second motor is installed laterally, the first motor is connected to the pressure sensor signal, the first motor is connected to the first electric cylinder signal, the first motor is connected to the second electric cylinder signal, the first motor is connected to the third electric cylinder signal, the second motor is connected to the pressure sensor signal, the second motor is connected to the first electric cylinder signal, the second motor is connected to the second electric cylinder signal, and the second motor is connected to the third electric cylinder signal.

[0027] Preferably, the protective box is detachably connected to a cleaning cloth, the outer layer of which is made of microfiber dust-free cloth, the inner core of which is made of sintered polyethylene foam, and a cross hole is provided in the center of the cleaning cloth.

[0028] Preferably, the detector integrates an alarm.

[0029] Compared with the prior art, the present invention has the following advantages:

[0030] 1. This invention monitors the tool length and damage status in real time with a probe, and dynamically adjusts the air blowing angle of the air blowing pipeline according to the position of the probe during the monitoring process. This ensures that the probe receives effective air blowing cleaning during operation, which helps maintain the cleanliness of the probe in the working state, thereby improving the reliability and accuracy of the probe monitoring process.

[0031] 2. This invention utilizes a detector to monitor the cutting tool located above the probe. By pre-determining whether there is oil on the cutting tool, if oil is present, the air blowing pipeline is activated to clean the oil on the cutting tool surface according to a preset time. If the cleaning is not completed within the preset time, and the detector still detects oil on the cutting tool, an alarm is triggered by the integrated alarm inside the detector to notify the staff to clean it manually. During the cleaning process, the probe is protected by a protective box to prevent oil from adhering to the probe during the cutting tool cleaning process.

[0032] 3. This invention uses a detector to monitor the tool model and specifications in real time, enabling the first, second, and third electric cylinders to automatically adjust to the corresponding working trajectory based on the acquired tool parameters, thereby effectively improving the accuracy of the probe during the monitoring process. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the CNC machine tool magazine structure proposed in this invention;

[0034] Figure 2 This is a side view of the mounting bracket for the CNC machine tool magazine proposed in this invention;

[0035] Figure 3This is a bottom view of the mounting bracket for the CNC machine tool magazine proposed in this invention;

[0036] Figure 4 This is a first-view view of the protective box for the CNC machine tool magazine proposed in this invention;

[0037] Figure 5 For the present invention Figure 4 A schematic diagram of the proposed A-part enlarged structure;

[0038] Figure 6 This is a second-view view of the protective box for the CNC machine tool magazine proposed in this invention;

[0039] Figure 7 This is a schematic diagram of the internal structure of the protective box for the CNC machine tool magazine proposed in this invention;

[0040] Figure 8 For the present invention Figure 7 A schematic diagram of the proposed B-part enlarged structure;

[0041] Figure 9 This is a schematic diagram of the cleaning cloth structure of the CNC machine tool magazine proposed in this invention;

[0042] Figure 10 This is a schematic diagram of the internal structure of the cleaning cloth in the CNC machine tool magazine proposed in this invention.

[0043] In the diagram: 1. Tool holder; 2. Air blowing pipe; 3. Mounting bracket; 4. Protective box; 5. First electric cylinder; 6. Probe; 7. Mounting shaft; 8. Protective cover plate; 9. First slide groove; 10. First slider; 11. Second electric cylinder; 12. C-shaped frame; 13. Second slide groove; 14. Second slider; 15. Third electric cylinder; 16. Slide rail; 17. Movable block; 18. Connecting rod; 19. Abutment rod; 20. Force rod; 21. Turntable; 22. First motor; 23. Second motor; 24. Cleaning cloth; 25. Detector. Detailed Implementation

[0044] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0045] This embodiment involves a CNC machine tool magazine; see reference... Figures 1 to 10As shown, the tool holder 1 and the air blowing pipe 2 are connected. The tool surface has a corresponding QR code or DPM code. A mounting bracket 3 is integrally connected to the tool holder 1. The mounting bracket 3 has an L-shaped structure, with its horizontal section located below the tool holder 1. A detector 25 for detecting tool specifications and surface contaminants is fixedly connected to the mounting bracket 3. It should be noted that the detector 25 consists of an industrial camera and a vision reader. When a tool passes through the inspection station, the vision reader first reads the QR code or DPM code on the tool to establish its identity ID and associates it with standard specification information in the database, providing a comparison benchmark for subsequent inspections. The camera employs different detection methods for different contaminants on the cutting tool. For oil stains, it identifies them using irregular, bright reflective areas. For metal filings, it identifies their shape, texture, or protrusion that differs from the tool body through edge detection and morphological analysis. Finally, the type, location, and size of the discovered defects are linked to the tool model ID scanned in the first step for easy reference by staff. The detector 25 integrates an alarm, and the mounting bracket 3 is equipped with a drive unit, which includes a first slide groove 9, a first slider 10, a second electric cylinder 11, a U-shaped frame 12, a second slide groove 13, a second slider 14, and a third electric cylinder 15. The components are configured as follows:

[0046] The first slide groove 9 is formed on the transverse section of the mounting bracket 3. The first slider 10 is slidably mounted on the first slide groove 9. The second electric cylinder 11 is fixedly mounted on the bottom surface of the transverse section of the mounting bracket 3. The output end of the second electric cylinder 11 is fixedly connected to the first slider 10. The first slide groove 9 guides and limits the movement of the first slider 10, thereby constraining the direction of movement of the first slider 10 and reducing the driving load of the second electric cylinder 11. The C-shaped frame 12 is fixedly connected to the top surface of the first slider 10. The second slide groove 13 is formed on the C-shaped frame 12. The second slider 14 is slidably mounted in the second slide groove 13. The second slider 14 is fixedly connected to the protective box 4. The third electric cylinder 15 is fixedly connected to the C-shaped frame 12. The output end of the third electric cylinder 15 is fixedly connected to the second slider 14. The second slide groove 13 guides and limits the movement of the second slider 14, thereby constraining the direction of movement of the second slider 14 and reducing the driving load of the third electric cylinder 15.

[0047] Mounting bracket 3 is connected to a protective box 4 via a drive unit. The protective box 4 is a hollow rectangular box structure with an open top. A first electric cylinder 5 is installed inside the protective box 4. A probe 6 is fixedly connected to the output end of the first electric cylinder 5. The probe 6 consists of a ruby ​​stylus, an isotropic elastic hinge, a miniature trigger switch, and a signal transmitter. The working principle of the probe 6 is as follows: when the ruby ​​stylus contacts the tool, it instantly triggers the miniature switch, and the signal transmitter then sends a trigger signal. After receiving the signal, the CNC system calls a dedicated measurement macro program for analysis and calculation, and finally obtains the tool's dimensional information and usage status evaluation results. The second electric cylinder 11 and the third electric cylinder 15 in the drive unit work together to move the XY axis, allowing the probe 6 to flexibly adjust its measurement position, thereby adapting to the characteristics of tool tips of different specifications and models, which helps to improve the detection range of the probe 6. A mounting shaft 7 is rotatably mounted on the top surface of the protective box 4, and a protective cover plate 8 is fixedly connected to the mounting shaft 7. A limiting plate is fixedly connected to the top surface of the protective box 4, which moves against the protective cover 8. The limiting plate restricts the maximum angle of deflection of the protective cover 8. The contact rod 19 is fixedly installed on the mounting shaft 7, and the force rod 20 is fixedly connected to the outer wall of the protective box 4. The contact rod 19 and the force rod 20 move against each other. The force rod 20 has a built-in pressure sensor. It should be noted that when the mounting shaft 7 drives the protective cover 8 to rotate to move against the limiting plate, the mounting shaft 7 will simultaneously drive the contact rod 19 to move against the force rod 20. At this time, the pressure signal monitored by the pressure sensor will change. The air blowing pipe 2 will sense this change and start. At this time, the probe 6 probe part moves out of the protective box 4, and the air blowing pipe 2 starts immediately, which can immediately clean the probe 6 by blowing air without waiting for it to be completely removed, effectively improving the cleaning efficiency. The protective box 4 is equipped with a control unit, which includes a slide rail 16, a movable block 17 and a connecting rod 18. The components are set as follows:

[0048] The slide rail 16 is fixedly connected to the protective cover plate 8. The movable block 17 is slidably mounted on the slide rail 16. The slide rail 16 guides and limits the movable block 17, ensuring that the movable block 17 can only move along the installation direction of the slide rail 16. The initial position of the movable block 17 should be appropriately far away from the mounting shaft 7 to provide sufficient torque. The connecting rod 18 is pinned between the bottom surface of the movable block 17 and the output end of the first electric cylinder 5. When the output end of the first electric cylinder 5 moves vertically, the connecting rod 18 transmits the pushing and pulling force to the movable block 17, thereby driving the movable block 17. Block 17 slides along slide rail 16, thereby driving the protective cover plate 8 to deflect upward around mounting shaft 7. When the protective cover plate 8 rotates to a point where it comes into contact with the limiting plate, its rotation is constrained by the limiting plate and remains at a fixed angle. At this time, the first electric cylinder 5 continues to move in the vertical direction, and the movable block 17 slides on slide rail 16. During this stage, since the posture of the protective cover plate 8 has been locked by the limiting plate, the movement of the output end of the first electric cylinder 5 only drives the movable block 17 to change position, and no longer affects the deflection angle of the protective cover plate 8.

[0049] The control unit controls the opening and closing of the protective cover 8 according to the extension and retraction movement of the first electric cylinder 5. The mounting bracket 3 and the protective box 4 are equipped with a cleaning unit, which controls the air blowing pipe 2 to adjust the blowing angle according to the movement stroke of the first electric cylinder 5. The cleaning unit includes an abutment rod 19, a force-bearing rod 20, a turntable 21, a first motor 22 and a second motor 23. The components are arranged as follows:

[0050] Turntable 21 is rotatably mounted on mounting bracket 3. First motor 22 is fixedly mounted on turntable 21, with its output end fixedly connected to the center of turntable 21. First motor 22 is mounted longitudinally and is connected to a pressure sensor, a first electric cylinder 5, a second electric cylinder 11, and a third electric cylinder 15. Second motor 23 is fixedly mounted on turntable 21, with its output end fixedly connected to air blowing pipe 2. Second motor 23 is mounted transversely and is connected to a pressure sensor. The first electric cylinder 5 is connected to the signal, the second motor 23 is connected to the signal of the second electric cylinder 11, and the second motor 23 is connected to the signal of the third electric cylinder 15. The vertical position information of the probe 6 is obtained by the movement stroke of the first electric cylinder 5, and the horizontal position information of the probe 6 is obtained by the movement stroke of the second electric cylinder 11 and the third electric cylinder 15. After obtaining these data, the first motor 22 and the second motor 23 will drive the output port of the air blowing pipe 2 to adjust accordingly according to the position of the probe 6, thereby achieving continuous air blowing cleaning of the probe 6 during operation and effectively preventing dust, oil mist and other pollutants from adhering to the surface of the probe 6.

[0051] In this embodiment of the disclosure, when the tool moves to the inspection station, the visual barcode reader in the detector 25 will first read the QR code or DPM code on the tool to establish the tool's identity ID and associate it with the standard specification information in the database to provide a comparison benchmark for subsequent inspection. The industrial camera in the detector 25 will then determine whether there are different adhering substances on the tool. Finally, the type, location, and size of the discovered defects will be bound to the tool model ID scanned in the first step.

[0052] After the adhering substances are found on the surface of the tool, the first motor 22 and the second motor 23 adjust the blowing angle of the air blowing pipe 2 according to the tool model. The oil stains on the surface of the tool are cleaned by blowing through the air blowing pipe 2 for a preset time. If the cleaning is not completed within the preset time, the detector 25 still detects that there are oil stains on the tool. The alarm integrated inside the detector 25 will be triggered to notify the staff to clean it manually.

[0053] After no adhering substances are found on the surface of the cutting tool, the stroke of the second electric cylinder 11 and the third electric cylinder 15 is adjusted according to the cutting tool model and specifications to change the working trajectory of the probe 6. The first electric cylinder 5 is started, and the first electric cylinder 5 drives the probe 6 to move upward. The first electric cylinder 5 transmits the push-pull force to the movable block 17 through the connecting rod 18, so that the movable block 17 slides along the slide rail 16, thereby driving the protective cover plate 8 to achieve an upward deflection movement around the mounting shaft 7. When the protective cover plate 8 deflects to the point of abutting against the limit plate, the protective cover plate 8 drives the abutting rod 19 to abut against the force rod 20 through the mounting shaft 7. At this time, the pressure signal monitored by the pressure sensor will change, and the air blowing pipe 2 will sense this change and start. At the same time, the output angle of the first motor 22 and the second motor 23 will be adaptively matched according to the stroke of the first electric cylinder 5, the second electric cylinder 11 and the third electric cylinder 15, so as to achieve continuous air blowing cleaning of the probe 6 during the operation.

[0054] In one example, the protective housing 4 is detachably connected to a cleaning cloth 24. To ensure that the probe 6 is free from contamination by tiny adhering substances when it comes into contact with the cutting tool, the cleaning cloth 24 adopts a double-layer composite structure: the inner core provides uniform and stable contamination-free support, and the outer layer achieves efficient adsorption and convenient replacement, thereby preventing the probe 6 from being contaminated secondary during operation. The outer layer of the cleaning cloth 24 is made of microfiber dust-free cloth, and the inner core of the cleaning cloth 24 is made of sintered polyethylene foam. A cross hole is provided in the center of the cleaning cloth 24. The opening of the cross hole allows the probe 6 to make full contact with the cleaning cloth 24 when it passes through it, thereby achieving automatic cleaning during each extension and retraction of the probe 6. It should be noted that the cleaning cloth 24 needs to be replaced after a certain number of uses to avoid contamination and damage to the probe 6 caused by the cleaning cloth 24 being used more than the preset number of times.

[0055] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A CNC machine tool magazine, comprising a tool holder (1) and an air blowing pipe (2), characterized in that, The tool holder (1) is integrally connected to a mounting bracket (3), the mounting bracket (3) is provided with a drive unit, the mounting bracket (3) is provided with a protective box (4) through the drive unit, the protective box (4) is provided with a first electric cylinder (5), the output end of the first electric cylinder (5) is fixedly connected to a probe (6), the top surface of the protective box (4) is rotatably mounted with a mounting shaft (7), the mounting shaft (7) is fixedly connected with a protective cover plate (8), the protective box (4) is provided with a control unit, the control unit is used to control the protective cover plate (8) to open and close according to the extension and retraction movement of the first electric cylinder (5), the control unit includes: The slide rail (16) is fixedly connected to the protective cover plate (8); Movable block (17), which is slidably mounted on slide rail (16); Connecting rod (18), the connecting rod (18) pin is installed between the bottom surface of the movable block (17) and the output end of the first electric cylinder (5); The mounting bracket (3) and the protective box (4) are provided with a cleaning section, which is used to control the air blowing pipe (2) to adjust the blowing angle according to the movement stroke of the first electric cylinder (5). The cleaning section includes: A turntable (21) is rotatably mounted on the mounting bracket (3); The first motor (22) is fixedly installed on the turntable (21), and the output end of the first motor (22) is fixedly connected to the center position of the turntable (21); The second motor (23) is fixedly mounted on the turntable (21). The output end of the second motor (23) is fixedly connected to the air blowing pipe (2). A detector (25) for detecting the tool specifications and surface adhering substances is fixedly connected on the mounting bracket (3).

2. The CNC machine tool magazine according to claim 1, characterized in that, The mounting bracket (3) has an L-shaped structure, and the horizontal section of the mounting bracket (3) is located below the tool holder (1).

3. The CNC machine tool magazine according to claim 1, characterized in that, The drive unit includes: The first slide groove (9) is formed on the transverse section of the mounting bracket (3); The first slider (10) is slidably mounted on the first slide groove (9); The second electric cylinder (11) is fixedly installed on the bottom surface of the horizontal section of the mounting bracket (3), and the output end of the second electric cylinder (11) is fixedly connected to the first slider (10). An inverted bracket (12) is fixedly connected to the top surface of the first slider (10); The second slide (13) is formed on the shaped frame (12); The second slider (14) is slidably installed in the second slide groove (13), and the second slider (14) is fixedly connected to the protective box (4); The third electric cylinder (15) is fixedly connected to the shaped frame (12), and the output end of the third electric cylinder (15) is fixedly connected to the second slider (14).

4. The CNC machine tool magazine according to claim 1, characterized in that, The protective box (4) is a hollow rectangular box structure with an opening at the top.

5. The CNC machine tool magazine according to claim 1, characterized in that, The top surface of the protective box (4) is fixedly connected to a limiting plate that moves against the protective cover plate (8). An abutment rod (19) is fixedly installed on the mounting shaft (7). A force rod (20) is fixedly connected to the outer wall of the protective box (4). The abutment rod (19) moves against the force rod (20). The force rod (20) is embedded with a pressure sensor that is signal-connected to the air blowing pipe (2).

6. The CNC machine tool magazine according to claim 3, characterized in that, The first motor (22) is installed longitudinally, and the second motor (23) is installed transversely. The first motor (22) is connected to the pressure sensor signal, the first motor (22) is connected to the first electric cylinder (5) signal, the first motor (22) is connected to the second electric cylinder (11) signal, the first motor (22) is connected to the third electric cylinder (15) signal, the second motor (23) is connected to the pressure sensor signal, the second motor (23) is connected to the first electric cylinder (5) signal, the second motor (23) is connected to the second electric cylinder (11) signal, and the second motor (23) is connected to the third electric cylinder (15) signal.

7. The CNC machine tool magazine according to claim 1, characterized in that, The protective box (4) is detachably connected to a cleaning cloth (24). The outer layer of the cleaning cloth (24) is made of microfiber dust-free cloth, and the inner core of the cleaning cloth (24) is made of sintered polyethylene foam. A cross hole is provided in the center of the cleaning cloth (24).

8. The CNC machine tool magazine according to claim 1, characterized in that, The detector (25) integrates an alarm.

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