Numerical control machine tool with retractable cutter

Abstract

The utility model discloses a numerically-controlled machine tool with a retractable cutter, which relates to the technical field of numerically-controlled machine tools and comprises a numerically-controlled machine tool body, and a machine tool guide rail is arranged in the numerically-controlled machine tool body. Meanwhile, the situation that some metal chippings fall and adhere to a lead screw and affect transmission and use of the lead screw can be avoided, a piston can be driven to continuously move to suck water to flush the tool while air is blown to the machining tool to clean the chippings on the surface of the machining tool, and the cleaning effect on the machining tool is improved; flushed and cleaned chippings and sprayed water can enter a filtering frame to be filtered and screened, the chippings can be collected and treated, the water can be recycled, and the practicability is higher; the filtering frame and the sliding seat are connected and fixed in a magnetic attraction mode, collected chippings can be conveniently disassembled and treated, air blowing and water spraying in the cleaning mechanism share one power source, and the arrangement of the power source is reduced.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, specifically a CNC machine tool with retractable cutting tools. Background Technology

[0002] A CNC machine tool is an automated machine tool equipped with a program control system, which performs high-precision and high-efficiency machining through a digital control system. CNC machine tools are characterized by flexibility and high efficiency, and are particularly suitable for machining complex, precise, small-batch, and multi-variety parts.

[0003] Chinese patent discloses a retractable CNC machine tool (authorization announcement number CN220838914U), comprising a CNC machine tool body, an internal machine tool guide rail, a mounting base slidably connected to the outer side of the machine tool guide rail, a protective chamber fixed to the upper surface of the mounting base, a cleaning mechanism on the upper surface of the protective chamber, and a telescopic mechanism inside the mounting base. This retractable CNC machine tool incorporates a cleaning mechanism that, through the use of a fan, air nozzle, spray nozzle, and air outlet pipe, effectively removes metal impurities adhering to the machining tool. The airflow from the spray nozzle blows off the metal impurities, facilitating tool cleaning and solving the problem of not being able to clean metal impurities from the tool after use, thus hindering subsequent tool cleaning.

[0004] While the aforementioned CNC machine tool equipment can store the cutting tool and blow away debris, it sprays coolant during use, causing some water-soaked debris to adhere firmly and be difficult to blow off. Additionally, some debris, along with the cleaned-off debris, falls onto the screw that adjusts the tool's movement, affecting its transmission. Furthermore, the equipment lacks a structure for collecting and processing the cleaned debris, making subsequent cleaning inconvenient and relatively impractical. Utility Model Content

[0005] The purpose of this invention is to provide a CNC machine tool with retractable cutting tools to solve the problems raised in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a CNC machine tool with retractable cutting tools, comprising a CNC machine tool body, a machine tool guide rail inside the CNC machine tool body, a slide block slidably connected to the outer wall of the machine tool guide rail, and the slide block having a hollow structure, a protective chamber above the slide block, a tool holder inside the protective chamber, a machining tool connected to one end of the tool holder, a lead screw rotatably mounted in the upper part of the slide block, a movable slider fitted on the outer side of the lead screw, and the upper end of the slider being connected to the tool holder, a drive motor connected to one end of the lead screw outside the slide block, a protective plate above the lead screw inside the slide block, the protective plate penetrating the slider, a filter frame embedded in the inner side of the lower part of the slide block, and one end of the filter frame extending outside the slide block, and a cleaning mechanism above the protective chamber.

[0007] Furthermore, the cleaning mechanism includes a duct, which is fixedly installed on the top of the protective chamber. A protective box communicating with the protective chamber is provided on the right side of the protective chamber. A dual-axis motor is fixedly installed inside the duct. A fan blade is connected to the left output end of the dual-axis motor. One end of the duct is connected to a spray nozzle through a duct. The spray nozzle is fixedly installed on the top side inside the protective chamber, and a spray head is connected to the lower end of the spray nozzle. A water spray assembly is connected to the right output end of the dual-axis motor and is installed inside the protective box. The cleaning mechanism can blow air onto the surface of the processing tool when it is stored and moved inside the protective chamber, thereby cleaning away the debris adhering to it. Combined with the water spray assembly, the processing tool is rinsed and cleaned, improving the cleaning effect.

[0008] Furthermore, the water spray assembly includes a crankshaft, which is rotatably mounted inside the protective housing. One end of the crankshaft is fixedly connected to the output end on the right side of the dual-axis motor. A push rod is movably connected to the crankshaft via a connector. A pump cylinder is fixedly installed on one side wall of the protective housing. A piston is connected to the lower end of the push rod inside the pump cylinder. A through groove is symmetrically opened on the top of the piston, and a one-way valve is provided in the through groove. A water inlet pipe with a one-way valve is connected to the lower end of the pump cylinder, and the lower end of the water inlet pipe is connected to the interior of the lower side of the slide block. A water outlet pipe communicating with the upper end of the pump cylinder is provided at the top of the protective housing, and a water spray head is connected to one end of the water outlet pipe. The water spray assembly can share a power source with the drive fan blades, enabling it to continuously draw water and spray it out to rinse the processing tools.

[0009] Furthermore, the protective plate has an arc-shaped cross-section, and the protective plate and the lead screw are concentric. The protective plate is slidably connected to the slider to shield and protect the lead screw, preventing debris from falling into the grooves on the surface of the lead screw and thus affecting its transmission.

[0010] Furthermore, the filter frame and the slide are connected and fixed by magnetic attraction. The top surface of the slide is provided with a guide groove, which is connected to the inside of the slide. The upper end of the slider is located in the guide groove to fix the filter frame and facilitate its disassembly and removal for cleaning and collection of debris. The guide groove can also serve as a guide.

[0011] Furthermore, the upper end of the connector is rotatably connected to the crankshaft, and the lower end of the connector is hinged to the push rod. A sealing ring is fitted on the outer wall of the piston, and the piston is located below the opening at the end where the water outlet pipe connects to the pump barrel, so as to improve the sealing between the piston and the inner wall of the pump barrel.

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

[0013] 1. This utility model can retract the processing tool into the protective chamber for protection when the equipment is not in use. It can also protect the lead screw, preventing metal debris from falling and adhering to the lead screw and affecting its transmission. While blowing air to clean the surface debris of the processing tool, it can also drive the piston to move continuously, thereby drawing water from the slide and spraying it out through the water nozzle to rinse the processing tool, improving the cleaning effect of the debris adhering to the surface of the processing tool. The debris and sprayed water are filtered and screened through the filter frame, so that the debris can be collected and processed, which is convenient for collection and recycling. The water can also be recycled, making it more practical.

[0014] 2. This utility model uses a magnetic connection between the filter frame and the slide to make it easy to disassemble for handling collected debris or cleaning the filter frame. The cleaning mechanism uses a single power source for both air blowing and water spraying, thus reducing the need for a separate power source. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the structure between the slide, protective chamber, and machining tool of this utility model;

[0017] Figure 3 This is a partial cross-sectional structural diagram of the sliding block and the protective chamber of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure between the guide groove and the slide block of this utility model;

[0019] Figure 5 This is a utility model Figure 3 A magnified structural diagram of A in the middle.

[0020] The following are the labels in the diagram: 1. CNC machine tool body; 2. Machine tool guide rail; 3. Slide; 4. Protective chamber; 5. Tool holder; 6. Machining tool; 7. Lead screw; 8. Slider; 9. Drive motor; 10. Protective plate; 11. Filter frame; 12. Air duct; 13. Dual-axis motor; 14. Fan blade; 15. Crankshaft; 16. Connecting part; 17. Push rod; 18. Air spray duct; 19. Pump cylinder; 20. Piston; 21. Water inlet pipe; 22. Guide groove; 23. Water spray head. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example: Figure 1 - Figure 5 As shown, this utility model provides a technical solution: a CNC machine tool with retractable cutting tools, including a CNC machine tool body 1, a machine tool guide rail 2 inside the CNC machine tool body 1, a slide block 3 slidably connected to the outer wall of the machine tool guide rail 2, and the slide block 3 is a hollow structure, a protective chamber 4 is provided above the slide block 3, a tool holder 5 is provided inside the protective chamber 4, a machining tool 6 is connected to one end of the tool holder 5, a lead screw 7 is rotatably installed in the upper part of the slide block 3, a movable slider 8 is matched and sleeved on the outer side of the lead screw 7, and the upper end of the slider 8 is connected to the tool holder 5, a drive motor 9 is connected to one end of the lead screw 7 outside the slide block 3, a protective plate 10 is provided above the lead screw 7 inside the slide block 3, and the protective plate 10 passes through the slider 8, a filter frame 11 is embedded in the lower inner side of the slide block 3, and one end of the filter frame 11 extends to the outside of the slide block 3, and a cleaning mechanism is provided above the protective chamber 4.

[0023] In this example, the cleaning mechanism includes a blower 12, which is fixedly installed on the top of the protective chamber 4. A protective box communicating with the protective chamber 4 is provided on the right side of the protective chamber 4. A dual-axis motor 13 is fixedly installed inside the blower 12. A fan blade 14 is connected to the left output end of the dual-axis motor 13. One end of the blower 12 is connected to a spray nozzle 18 through a duct. The spray nozzle 18 is fixedly installed on the top side inside the protective chamber 4, and a spray head is connected to the lower end of the spray nozzle 18. A water spray assembly is installed inside the protective box at the right output end of the dual-axis motor 13. The cleaning mechanism can blow air onto the surface of the machining tool 6 when it is stored and moved to the inside of the protective chamber 4, thereby cleaning away the debris adhering to it. Combined with the water spray assembly, the machining tool 6 is rinsed and cleaned, improving the cleaning effect. In this example, the water spray assembly includes a crankshaft 15, which is rotatably mounted inside the protective housing. One end of the crankshaft 15 is fixedly connected to the output end on the right side of the dual-axis motor 13. The crankshaft 15 is movably connected to a push rod 17 via a connector 16. A pump cylinder 19 is fixedly mounted on one side wall of the protective chamber 4. A piston 20 is connected to the lower end of the push rod 17 inside the pump cylinder 19. A through groove is symmetrically opened on the top of the piston 20, and a one-way valve is provided in the through groove. A water inlet pipe 21 with a one-way valve is connected to the lower end of the pump cylinder 19, and the lower end of the water inlet pipe 21 is connected to the lower side of the slide block 3. A water outlet pipe communicating with the upper end of the pump cylinder 19 is provided at the top of the protective chamber 4, and a water spray head 23 is connected to one end of the water outlet pipe. The water spray assembly can share a power source with the drive fan blade 14, so that it can continuously draw water and spray it out to wash the processing tool 6.

[0024] In this example, the protective plate 10 has a circular arc cross-section, and the protective plate 10 and the lead screw 7 are concentric. The protective plate 10 is slidably connected to the slider 8 so as to shield and protect the lead screw 7 and prevent some debris from falling into the grooves on the surface of the lead screw 7, thereby affecting its transmission. In this example, the filter frame 11 and the slide 3 are connected and fixed by magnetic attraction. In this example, the magnetic attraction between the filter frame 11 and the slide 3 can be achieved by embedding magnets with opposite poles on the outer wall of the filter frame 11 and the inner wall of the groove in the slide 3 where the filter frame 11 is installed, or by embedding magnets on the outer wall of the filter frame 11 and providing metal material that attracts the magnets on the inner wall of the groove in the slide 3 where the filter frame 11 is installed. This uses magnets to fix the filter frame 11, making it easy to disassemble and install. The top surface of the slide 3 has a guide groove 22, which is connected to the inside of the slide 3. The upper end of the slider 8 is located in the guide groove 22 to fix the filter frame 11 and make it easy to disassemble and remove it for cleaning and collecting debris. The guide groove 22 also serves as a guide. In this example, the upper end of the connector 16 is rotatably connected to the crankshaft 15, the lower end of the connector 16 is hinged to the push rod 17, the outer wall of the piston 20 is fitted with a sealing ring, and the piston 20 is located below the opening at the end where the water outlet pipe is connected to the pump barrel 19, so as to improve the sealing between the piston 20 and the inner wall of the pump barrel 19.

[0025] The working principle of this utility model is as follows: After the workpiece is processed using the CNC machine tool, in order to prevent workers from accidentally touching the tool and getting injured, the processing tool 6 needs to be stored in the protective chamber 4. By starting the drive motor 9, the connected lead screw 7 is rotated, thereby driving the slider 8 to move horizontally, which in turn moves the tool holder 5 and the processing tool 6 into the protective chamber 4. Then the drive motor 9 can be stopped to achieve the retraction of the tool. Then the dual-axis motor 13 is started to drive the fan blade 14 to rotate, which works with the air blower 18 and the air nozzle to blow away the debris adhering to the processing tool 6. At the same time, the dual-axis motor 13 also drives the crankshaft 15 to rotate, which drives the connecting part 16 to continuously push and pull the push rod 17 up and down, so that the push rod 17 drives the piston 20 to move synchronously. When the piston 20 When the piston moves from bottom to top, the one-way valve on the piston 20 closes and the one-way valve on the inlet pipe 21 opens, allowing water in the slide block 3 to be drawn and transported to the pump barrel 19 through the inlet pipe 21. When the piston 20 moves from top to bottom, the one-way valve on the piston 20 opens and the one-way valve on the inlet pipe 21 closes, allowing water below the piston 20 in the pump barrel 19 to move through the channel to above the piston 20. When the piston 20 moves up again, it pushes the water above it into the outlet pipe, which is then transported to the spray nozzle 23 for spraying, thereby rinsing the machining tool 6 and improving the cleaning effect. The debris cleaned by the air blowing and water spraying will flow into the slide block 3 under the guidance of the guide groove 22 and be screened and filtered by the filter frame 11 to separate the debris and water, allowing for water recycling and debris collection and treatment. It is convenient to use and more practical.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A CNC machine tool with retractable cutting tool, comprising a CNC machine tool body (1), wherein the CNC machine tool body (1) is provided with a machine tool guide rail (2), characterized in that: The machine tool guide rail (2) is slidably sleeved with a slide block (3), and the slide block (3) is a hollow structure. A protective chamber (4) is provided above the slide block (3). A tool holder (5) is provided inside the protective chamber (4). A machining tool (6) is connected to one end of the tool holder (5). A lead screw (7) is rotatably installed in the upper part of the slide block (3). A movable slider (8) is fitted on the outside of the lead screw (7), and the upper end of the slider (8) is connected to the tool holder (5). A drive motor (9) is connected to one end of the lead screw (7) outside the slide block (3). A protective plate (10) is provided above the lead screw (7) in the slide block (3), and the protective plate (10) passes through the slider (8). A filter frame (11) is embedded in the lower inner side of the slide block (3), and one end of the filter frame (11) extends to the outside of the slide block (3). A cleaning mechanism is provided above the protective chamber (4).

2. The CNC machine tool with retractable cutting tool according to claim 1, characterized in that: The cleaning mechanism includes a duct (12), which is fixedly installed on the top of the protective chamber (4). A protective box communicating with the protective chamber (4) is provided on the right side of the protective chamber (4). A dual-axis motor (13) is fixedly installed inside the duct (12). A fan blade (14) is connected to the left output end of the dual-axis motor (13). One end of the duct (12) is connected to a spray nozzle (18) through a conduit. The spray nozzle (18) is fixedly installed on the top side inside the protective chamber (4), and a spray head is connected to the lower end of the spray nozzle (18). A water spray assembly set in the protective box is connected to the right output end of the dual-axis motor (13).

3. A CNC machine tool with retractable cutting tool according to claim 2, characterized in that: The water spray assembly includes a crankshaft (15), which is rotatably installed in the protective box. One end of the crankshaft (15) is fixedly connected to the output end on the right side of the dual-shaft motor (13). The crankshaft (15) is movably connected to a push rod (17) through a connector (16). A pump cylinder (19) is fixedly installed on one side wall of the protective chamber (4). The lower end of the push rod (17) is connected to a piston (20) inside the pump cylinder (19). The piston (20) has symmetrical slots on its top, and a one-way valve is provided in the slots. The lower end of the pump cylinder (19) is connected to a water inlet pipe (21) with a one-way valve. The lower end of the water inlet pipe (21) is connected to the lower side of the slide (3). The top of the protective chamber (4) is provided with a water outlet pipe that communicates with the upper end of the pump cylinder (19). One end of the water outlet pipe is connected to a water spray head (23).

4. A CNC machine tool with retractable cutting tool according to claim 1, characterized in that: The protective plate (10) has a circular arc cross section, and the protective plate (10) and the lead screw (7) are concentric. The protective plate (10) is slidably connected to the slider (8).

5. A CNC machine tool with retractable cutting tool according to claim 2, characterized in that: The filter frame (11) and the slide (3) are connected and fixed by magnetic attraction. The top surface of the slide (3) is provided with a guide groove (22), and the guide groove (22) is connected to the inside of the slide (3). The upper end of the slider (8) is located in the guide groove (22).

6. A CNC machine tool with retractable cutting tool according to claim 3, characterized in that: The upper end of the connector (16) is rotatably connected to the crankshaft (15), and the lower end of the connector (16) is hinged to the push rod (17). The outer wall of the piston (20) is fitted with a sealing ring, and the piston (20) is located below the opening at one end where the water outlet pipe is connected to the pump cylinder (19).

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