A machine tool

Abstract

The present application relates to the field of machine tool, specifically to a machine tool, including base, column, workbench, spindle component, protective cover and chip flushing system, column and workbench are arranged on the base, the protective cover covers the base. Chip flushing system includes driving device, water jet pipe, water supply device, sensing device and control device. Driving device is arranged on the protective cover, used to drive water jet pipe to move and / or rotate, water outlet of water jet pipe faces to chip collecting area. Water supply device is communicated with water inlet of water jet pipe, driving device, sensing device and water supply device are connected with control device. When sensing device obtains chip collecting information of chip collecting area, control device controls water supply device to supply water to water jet pipe to flush chip collecting area, and controls driving device to drive water jet pipe to move back and forth and / or rotate. The present application realizes large range cleaning of chip collecting area through the movement and / or rotation of water jet pipe; automatic cleaning of chip collecting area is realized through sensing device and control device.

Description

Technical Field

[0001] This invention relates to the field of machine tools, and more specifically, to a machine tool. Background Technology

[0002] During machine tool processing, some waste chips are generated. These waste chips will accumulate in the chip collection area, which includes the processing area and the non-processing area. The processing area is such as the worktable, and the non-processing area is such as the perimeter of the worktable. In addition, during the processing, the rotation of the tool will cause the waste chips to be carried out or splashed around with the cutting fluid, sticking to the sheet metal inside the machine tool or the protective cover.

[0003] Currently, the most common method for cleaning waste on the workbench in the processing area is to use spraying or rinsing devices. However, this method only cleans the processing area and cannot effectively clean non-processing areas outside the workbench. For example, patent 202121491198.X, although it can move the cooling nozzle 12 by extending and retracting an electric telescopic rod, allowing the cooling nozzle 12 to spray water to clean the workpiece placement seat 2, workpiece 3, and processing tool 4, this patent mainly cleans the processing area. In existing cleaning methods, cleaning non-processing areas requires manual cleaning with air guns or water guns, which is slow and requires machine shutdown for cleaning.

[0004] Therefore, how to effectively and automatically clean both the processing and non-processing areas inside the protective cover is a technical problem that urgently needs to be solved. Summary of the Invention

[0005] To address the aforementioned problems, the present invention aims to provide a machine tool.

[0006] The objective of this invention is achieved through the following technical solution: The present invention provides a machine tool comprising a base, a column, a worktable, a spindle assembly, and a protective cover. The column and worktable are mounted on the base, the spindle assembly is mounted on the column, and the protective cover covers the base. The invention is characterized by further including a chip-removing system, which comprises: The drive unit is mounted on the protective cover; The water spray pipe is connected to the drive unit, which is used to move and / or rotate the water spray pipe. The outlet of the water spray pipe faces the chip collection area inside the machine tool. A water supply device connected to the inlet of a spray pipe; The sensing device is used to acquire chip collection information from the chip collection area and generate a water supply signal; The control device is connected to the drive device, the sensing device and the water supply device. The control device is used to control the operation of the drive device and the water supply device according to the water supply signal.

[0007] Furthermore, the sensing device comprises a camera mounted on the protective cover and a vision recognition module connected to the camera. The vision recognition module is used to identify the chip collection information in the chip collection area based on the image acquired by the camera and generate a water supply signal; or, The sensing device consists of a weight detection unit connected to the chip collection area and a judgment unit connected to the weight detection unit. The judgment unit is used to determine the chip collection information of the chip collection area based on the signal from the weight detection unit and generate a water supply signal.

[0008] Furthermore, the water supply signal includes a first water supply signal located in the chip collection area of ​​the processing area and a second water supply signal located in the chip collection area of ​​the non-processing area; The control device is used to control the drive device to operate according to the first water supply signal, so that the outlet of the water spray pipe is directed toward the chip collection area of ​​the processing area, and to control the water supply device to start water supply; the control device is also used to control the drive device to operate according to the second water supply signal, so that the outlet of the water spray pipe is directed toward the chip collection area of ​​the non-processing area, and to control the water supply device to start water supply.

[0009] Furthermore, the water spray pipe is movably mounted on the protective cover, and the control device is also used to control the water spray pipe to move back and forth while spraying water, according to the water supply signal, via the drive device.

[0010] Furthermore, the water supply signal includes a water spray area signal and a water spray flow rate signal corresponding to the water spray area signal. The control device is used to control the operation of the water supply device according to the water spray area signal and the water spray flow rate signal, so that the water spray pipe sprays water at different water spray flow rates in different water spray areas.

[0011] Furthermore, the water spray pipe is vertically arranged inside the protective cover, and the water spray pipe has several water spray structures along its length, with the water spray structures facing the inner side of the protective cover.

[0012] Furthermore, a regulating valve for adjusting water pressure is provided between the inlet and outlet of the water spray pipe; the outlet of the water spray pipe is rectangular or conical, or a rotatable spray head is provided at the outlet of the water spray pipe.

[0013] Furthermore, the water spray pipe includes a main water pipe and several sub-water pipes extending from the main water pipe. The outlets of the main water pipe and the several sub-water pipes face the debris collection area, and several water spray structures are provided on the sides.

[0014] Furthermore, the drive unit is located outside the protective cover, and a moving track is provided on the top of the protective cover. The moving track is configured with an opening, through which the water spray pipe passes and moves along the moving track.

[0015] Furthermore, drive units and water spray pipes are installed on both sides of the machine tool.

[0016] The beneficial effects of this invention are as follows: The outlet of the water spray pipe in this application faces the chip collection area, which includes a processing area and a non-processing area. A water supply device, a sensing device, and a control device are installed on the machine tool. When the sensing device acquires chip collection information from the chip collection area, the control device, based on the information acquired by the sensing device, controls the water supply device to start, supplying water to the water spray pipe to rinse and clean the chip collection area. Furthermore, the control device controls the drive device to start, driving the water spray pipe to move back and forth and / or rotate. This application achieves large-area cleaning of the chip collection area through the movement and rotation of the water spray pipe; and achieves automated cleaning of the chip collection area through the sensing and control devices. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a structural diagram of existing technology; Figure 2 This is a schematic diagram of the structure of the machine tool of the present invention; Figure 3 This is a schematic diagram of the internal structure of the machine tool of the present invention; Figure 4 This is a schematic diagram showing the connection between the drive device of the machine tool of the present invention and the water spray pipe; Figure 5 This is a schematic diagram of the chip-flushing principle of the chip-flushing system of the machine tool of the present invention; Figure 6 This is a schematic diagram of the sensing device of the machine tool of the present invention; Figure 7 This is another schematic diagram of the sensing device of the machine tool of the present invention.

[0018] The attached figures are labeled as follows: 2-Workpiece placement seat, 3-Workpiece, 4-Workpiece cutting tool, 12-Cooling nozzle; 10-Base, 20-Column, 30-Worktable, 40-Spindle assembly; 50 - Protective cover, 51 - Moving track; 60-Chip removal system; 61-Drive device; 62-Water spray pipe, 621-Water spray structure, 622-Main water pipe, 623-Sub-water pipe; 63-Water supply device; 64-Sensing device, 641-Camera, 642-Visual recognition module, 643-Weight detection unit, 644-Judgment unit; 65-Control device, 66-Spray head, 67-Regulating valve. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0020] refer to Figure 2 , Figure 3 and Figure 5 An embodiment of the present invention provides a machine tool comprising a base 10, a column 20, a worktable 30, a spindle assembly 40, and a protective cover 50. The column 20 and the worktable 30 are fixedly mounted on the base 10. The worktable 30 is used to place the workpiece to be processed, and the column 20 is mounted on the base 10. The spindle assembly 40 is mounted on the column 20 or on a crossbeam mounted on the column 20. The spindle assembly 40 includes a spindle on which a cutting tool for processing the workpiece is mounted. The protective cover 50 covers the base 10, enclosing the column 20, the worktable 30, and the spindle assembly 40, to prevent chips from splashing during processing. The front of the protective cover 50 has an openable protective door for easy access for the operator to load and unload workpieces and observe the processing status.

[0021] The machine tool in this embodiment also includes a chip flushing system 60. The chip flushing system 60 is used to clean the chips in the chip collection area inside the machine tool in a timely manner, so as to avoid chip accumulation affecting machining accuracy and equipment operation stability. The chip collection area includes a machining area and a non-machining area. The machining area is, for example, on the worktable 30, and the non-machining area is, for example, on the base 10 around the worktable 30, the inner side wall of the protective cover 50, etc. The chip flushing system 60 specifically includes a drive device 61, a water spray pipe 62, a water supply device 63, a sensing device 64, and a control device 65.

[0022] The drive unit 61 is fixedly mounted on the protective cover 50. In this embodiment, the drive unit 61 can be driven by a cylinder. In other embodiments, common drive methods such as motor + lead screw + linear guide, linear module, motor + synchronous belt, and hydraulic cylinder can also be used. One end of the water spray pipe 62 is the water inlet, and the other end is the water outlet. The water inlet of the water spray pipe 62 is connected to the water supply device 63, and the water outlet faces the chip collection area inside the machine tool. A fan-shaped nozzle is provided at the water outlet of the water spray pipe 62 to increase the chip removal range and improve chip removal efficiency.

[0023] The water supply device 63 is located on the outside of the machine tool and includes a water tank, a water pump and a filter. The water tank is used to store cutting fluid (or clean water). The inlet of the water pump is connected to the water tank through a pipe, and the outlet of the water pump is connected to the inlet of the spray pipe 62. The filter is installed on the pipe between the water pump and the spray pipe 62 to filter impurities in the cutting fluid and prevent impurities from clogging the outlet of the spray pipe 62.

[0024] The sensing device 64 is installed inside the machine tool, such as on the inner wall of the protective cover 50 or on the base 10. The sensing device 64 is used to acquire chip collection information in the chip collection area and generate a water supply signal. The sensing device 64 can employ one or more methods such as visual recognition and weight-sensing infrared sensing. For example, in visual recognition, when it is detected that the chip collection area covers a certain area, a water supply signal is generated, which will be described in detail in the following embodiments.

[0025] The control device 65 can be a PLC controller, fixedly installed on the outside of the protective cover 50, and electrically connected to the drive device 61, the sensing device 64, and the water supply device 63 via wires. The control device 65 has a preset control program to control the drive device 61 and the water supply device 63 according to the water supply signal transmitted by the sensing device 64. The specific working process is as follows: When the sensing device 64 detects that the chip accumulation in the chip collection area reaches a preset threshold, it generates a water supply signal and transmits it to the control device 65. After receiving the water supply signal, the control device 65 first controls the water pump of the water supply device 63 to start, transporting the cutting fluid (or clean water) in the water tank through pipes to the water spray pipe 62, which is then sprayed out from the outlet. Then, or simultaneously, it controls the drive device 61 to start, driving the water spray pipe 62 to move in the chip collection area, for example, along the direction from the worktable 30 to the column 20, to rinse both sides of the worktable 30. Figure 2 Simultaneously, the spray head 66 of the water spray pipe 62 rotates, allowing the water outlet of the water spray pipe 62 to fully cover the chip collection area, rinsing the chips from all directions and flushing them into the designated chip discharge channel. When the sensing device 64 detects that the chip accumulation in the chip collection area is lower than a preset threshold, it generates a stop water supply signal. After receiving the stop water supply signal, the control device 65 controls the drive device 61 and the water supply device 63 to stop operating, completing one chip flushing process.

[0026] Furthermore, in this embodiment, the control device 65 can also be set to a manual control mode. The operator can manually control the start and stop of the drive device 61 and the water supply device 63 through the control button on the outside of the protective cover 50, which is convenient for manual chip removal in special circumstances (such as when the sensor device 64 fails), thereby improving the practicality and reliability of the equipment.

[0027] In one specific implementation, reference is made to Figure 2 , Figure 3 , Figure 5 and Figure 6The sensing device 64 includes a camera 641 mounted on the protective cover 50 and a visual recognition module 642 connected to the camera 641.

[0028] Specifically, camera 641 is a high-resolution industrial camera. Camera 641 is fixed inside the protective cover 50 by a mounting bracket, and the lens of camera 641 faces the chip collection area inside the machine tool, including the area above the worktable 30 in the processing area and below the spindle component 40, or the lens of camera 641 faces the inner wall of the protective cover 50 in the non-processing area, or the base 10 on both sides of the worktable 30 (such as the position between the worktable 30 and the inner wall of the protective cover 50). Camera 641 captures images of the chip collection area in real time and transmits the captured image data to the vision recognition module 642.

[0029] The visual recognition module 642 can be an image processing software module built into the control device 65, or it can be a standalone image processing board. The visual recognition module 642 has a pre-set chip recognition algorithm. This algorithm analyzes and processes the image acquired by the camera 641 to identify chip accumulation information such as the accumulation area, height, and density of chips in the chip collection area. When the visual recognition module 642 determines that the chip accumulation area in the chip collection area exceeds a preset threshold (e.g., 30% of the chip collection area), or the chip accumulation height exceeds a preset threshold (e.g., 15mm), the visual recognition module 642 generates a water supply signal and sends this signal to the control device 65.

[0030] After receiving the water supply signal, the control device 65 controls the water supply device 63 to start the booster pump and controls the drive device 61 to move the water spray pipe 62 to flush the chip collection area. After flushing, the camera 641 continues to capture images of the chip collection area, and the vision recognition module 642 recognizes the images again. When it is determined that the chips in the chip collection area have been cleaned up and the accumulated area is lower than the preset threshold, the vision recognition module 642 stops sending the water supply signal or sends a stop water supply signal to the control device 65. The control device 65 then controls the water supply device 63 and the drive device 61 to stop operating, completing one automatic flushing cycle.

[0031] The advantage of this embodiment is that the camera 641 can acquire a panoramic image of the chip collection area, and the visual recognition module 642 can accurately identify the distribution of chips. It can not only determine whether rinsing is needed, but also guide the drive device 61 to drive the water spray pipe 62 to prioritize rinsing the dense chip area according to the chip distribution position, so as to achieve precise chip rinsing and save water.

[0032] In another embodiment, reference Figure 2 , Figure 3 , Figure 5 and Figure 7The sensing device 64 consists of a weight detection unit 643 connected to the chip collection area and a judgment unit 644 connected to the weight detection unit 643. Specifically, the weight detection unit 643 can be pre-embedded in the ground where the machine tool is placed, a method known as using a floor scale or weighbridge; alternatively, the weight detection unit 643 can be installed at the feet of the machine tool where it contacts the ground.

[0033] The judgment unit 644 is electrically connected to the weight detection unit 643. The judgment unit 644 can be a standalone electronic control board or integrated into the control device 65. The judgment unit 644 has a preset weight judgment algorithm that compares the weight value detected in real time by the weight detection unit 643 with a preset weight threshold. When the amount of chips inside the machine tool increases, it can be detected by the weight detection unit 643 and sent to the judgment unit 644. When the weight of the machine tool reaches a certain threshold, it indicates that the chips and waste liquid inside the machine tool have accumulated to the point where flushing is necessary. At this time, the judgment unit 644 generates a water supply signal and sends it to the control device 65. After receiving the water supply signal, the control device 65 controls the water supply device 63 to start the booster pump and controls the drive device 61 to move the water spray pipe 62 to flush the chip collection area. After rinsing is completed, the weight detection unit 643 continues to detect the weight of the machine tool. When the judgment unit 644 determines that the total weight of the machine tool has been reduced to below the preset threshold, the judgment unit 644 stops sending water supply signals or sends a stop water supply signal. The control device 65 then controls the booster pump to shut down and controls the drive device 61 to stop operating, completing one automatic rinsing cycle.

[0034] The advantages of this embodiment are that the weight detection unit 643 has a simple structure, low cost, and is not affected by environmental factors such as cutting fluid turbidity and light conditions. The detection results are stable and reliable, and it is suitable for machine tool processing scenarios with relatively harsh working environments.

[0035] In addition, the sensing device 64 can also be an infrared thermal sensor or a metal sensor, fixedly installed inside the protective cover 50, with its sensing end facing the chip collection area, to obtain chip collection information—specifically, the chip accumulation height. When the chip accumulation height reaches a preset threshold, the infrared thermal sensor or metal sensor generates a water supply signal and transmits the water supply signal to the control device 65; if the chip accumulation height does not reach the preset threshold, no water supply signal is generated. The chip flushing operation or principle that generates the water supply information is the same as described above, and will not be repeated here.

[0036] This embodiment provides the above three optional sensing device 64 structures, enabling the chip removal system 60 of the machine tool to flexibly select the sensing method according to different usage requirements and working conditions. It can use visual recognition to achieve precise chip removal, or use weight detection to achieve stable and reliable automatic chip removal control, thereby improving the applicability and intelligence level of the machine tool.

[0037] In one specific implementation, reference is made to Figure 3 and Figure 6 The chip collection area includes the machining area (i.e., the area where the tool cuts the workpiece) and the non-machining area (i.e., the area outside the worktable 30 where no cutting is performed, such as the inner wall of the protective cover 50, the area between the base 10 and the inner wall of the protective cover 50, etc.).

[0038] The control device 65 can receive two different water supply signals, namely a first water supply signal and a second water supply signal. When the control device 65 receives the first water supply signal (for example, the first water supply signal may be a signal generated corresponding to the chip collection information of the processing area captured by the camera 641), the control device 65 sends a control command to the drive device 61 to control the drive device 61 to act (for example, the drive device 61 is a rotary motor that drives the water spray pipe 62 to rotate around its axis; or the drive device 61 is a drive cylinder that pushes the water spray pipe 62 to translate), so that the outlet of the water spray pipe 62 is precisely facing the processing area. At the same time, the control device 65 controls the water supply device 63 (such as a water pump) to start water supply. At this time, water is sprayed out from the outlet of the water spray pipe 62, directly washing away the chips generated in the processing area (such as chip residues on the surface of the worktable 30, coolant stains, etc.), realizing real-time washing and chip removal during the processing, and avoiding chip accumulation that affects the processing quality.

[0039] When the control device 65 receives the second water supply signal (for example, the second water supply signal could be a signal generated corresponding to the chip collection information of the non-processing area captured by the camera 641), the control device 65 sends a control command to the drive device 61, controlling the drive device 61 to operate so that the outlet of the water spray pipe 62 faces the chip collection area of ​​the non-processing area. At the same time, the control device 65 controls the water supply device 63 to start supplying water. At this time, the water flow washes the non-processing area, realizing the periodic cleaning of the non-processing area.

[0040] In a specific embodiment, the first and second water supply signals can be manually triggered by the operator using different buttons on the control panel, or the machine tool's CNC system can automatically determine and generate corresponding water supply signals based on the chip state captured by the camera 641, thereby achieving intelligent control of the rinsing function. Through the above settings, the machine tool in this embodiment can flexibly switch the outlet of the water spray pipe 62 towards the chip collection area of ​​the processing area or the chip collection area of ​​the non-processing area according to different water supply signals, realizing the function of zoned rinsing. This ensures real-time chip removal in the processing area while effectively cleaning the non-processing area, improving the automation level of the machine tool and the cleanliness of the working environment.

[0041] In one specific implementation, reference is made to Figure 2 and Figure 3The water spray pipe 62 is movably mounted on the protective cover 50. Specifically, a moving track 51 is provided on the top of the protective cover (50), which is arranged along the direction from the workbench 30 to the column 20, and the water spray pipe 62 can reciprocate along the moving track 51. In this embodiment, the drive device 61 is a drive cylinder, but the drive device 61 can also be configured as a reciprocating drive motor, such as a forward and reverse motor or a servo motor. The drive device 61 is connected to the water spray pipe 62. When the control device 65 receives a water supply signal, it not only controls the drive device 61 to make the outlet of the water spray pipe 62 face the corresponding chip collection area, but also controls the drive device 61 to drive the water spray pipe 62 to reciprocate along the length direction of the protective cover 50 during the water spraying process.

[0042] Furthermore, the drive unit 61 is located outside the protective cover 50, the moving track 51 is configured as an opening, and the water spray pipe 62 passes through the moving track 51 and moves along the moving track 51.

[0043] Through the above settings, the back-and-forth movement of the water spray pipe 62 during the water spraying process realizes dynamic sweeping flushing, expands the coverage of a single flush, eliminates flushing dead corners, and allows chips and dirt to be flushed into the corresponding chip collection area more thoroughly and efficiently, thereby significantly improving the automatic cleaning capability of the machine tool and the cleanliness of the working environment, and reducing the cleaning labor intensity of the operators.

[0044] In one specific implementation, reference is made to Figure 3 , Figure 4 , Figure 5 The water supply signal further includes a water spray area signal and a water flow rate signal that corresponds one-to-one with the water spray area signal. That is, different water spray area signals correspond to different water flow rate signals. The control device 65 automatically retrieves the corresponding water flow rate signal based on the currently received water spray area signal, and controls the operation parameters of the water supply device 63 accordingly, so as to realize that the water spray pipe 62 sprays water with different water flow rates in different water spray areas.

[0045] For example, the processing area is mainly a worktable 30 used for workpiece processing. During the processing, the amount of chips is large and the generation speed is fast, requiring a large water flow to wash away the chips in time. The water supply signal for the processing area is set as a first water spray area signal and a corresponding first water spray flow signal. The water supply of the first water spray flow signal is a large flow rate (e.g., 15-25L / min).

[0046] The non-processing area mainly refers to the area outside the workbench 30, such as the area around the workbench 30, the protective cover 50, and the base 10 between the workbench 30 and the protective cover 50. The non-processing area is mainly for cleaning residual dirt, and the required water volume is moderate. Therefore, the water supply signal for the non-processing area is set as a second water spray area signal and a corresponding second water spray flow signal. The water supply volume of the second water spray flow signal can be a small to medium flow rate (e.g., 8-12 L / min).

[0047] In this embodiment, the water supply device 63 is a variable frequency water pump (i.e., its output flow rate can be adjusted by changing the motor speed). The input terminal of the variable frequency water pump is electrically connected to the control device 65. The control device 65 has a spray area-flow rate lookup table, which pre-sets the target spray flow rate value corresponding to the spray area signal. In addition, a flow sensor (such as an electromagnetic flow meter or a turbine flow meter) is installed at the outlet of the spray pipe 62. The flow sensor is electrically connected to the control device 65 and is used to detect the current spray flow rate in real time and feed it back to the control device 65 to ensure that the actual spray flow rate is consistent with the target spray flow rate.

[0048] The specific steps of the control device 65 in controlling different flushing flow rates according to different areas are as follows: Step 1: Receive the signal from the water spray area.

[0049] When the operator selects the area to be rinsed (e.g., selects "rinse the processing area" or "rinse the non-processing area" via the touch screen), or when the machine tool CNC system automatically determines the area to be rinsed based on the current processing status, the control device 65 receives the corresponding water spray area signal.

[0050] Step 2: Retrieve the corresponding water flow rate signal.

[0051] The control device 65 retrieves the corresponding water flow signal (i.e., the target flow value) from the internally stored water flow area-flow lookup table based on the received water spray area signal.

[0052] For example, when the received water spray area signal is "chip collection area of ​​the processing area", the retrieved water spray flow signal is the first water spray flow signal (target flow rate 20L / min).

[0053] When the received water spray area signal is "chip collection area in non-processing area", the retrieved water spray flow signal is the second water spray flow signal (target flow rate 10L / min).

[0054] Step 3: Control the water supply device 63 to adjust the water spray flow rate.

[0055] The control device 65 sends a control signal of the corresponding frequency to the variable frequency water pump of the water supply device 63 according to the retrieved water flow signal, thereby adjusting the motor speed of the variable frequency water pump and thus changing its output flow.

[0056] Step 4: Control the action of the water spray pipe 62 to perform rinsing.

[0057] After adjusting the water flow rate, the control device 65, based on the water spray area signal, controls the outlet of the water spray pipe 62 to face the corresponding area via the drive device 61. Simultaneously, it controls the water spray pipe 62 to reciprocate along the moving track 51 during the water spraying process. Ultimately, this achieves precise rinsing with different water flow rates in different water spray areas during reciprocating movement. Through the above settings, the machine tool in this embodiment can automatically match the most suitable water flow rate according to the actual needs of different water spray areas, realizing refined and intelligent control of the rinsing operation.

[0058] In one specific implementation, reference is made to Figure 3 and Figure 4 The water spray pipe 62 is vertically arranged inside the protective cover 50, that is, the extension direction of the water spray pipe 62 is up and down. The upper end of the water spray pipe 62 is connected to the water supply device 63 to receive the water flow from the water supply device 63; the lower end of the water spray pipe 62 faces the base 10.

[0059] The water spray pipe 62 is provided with a number of water spray structures 621 at intervals along its length (i.e., vertical direction). The water spray structures 621 are arranged facing the inner side of the protective cover 50 to rinse the inner wall surface of the protective cover 50.

[0060] The water spray structure 621 includes the following options: Option 1: Several small holes are drilled radially in the wall of the water spray pipe 62, and water is sprayed horizontally from the small holes to impact the inner wall of the protective cover 50. Option 2: Several miniature nozzles (such as fan-shaped nozzles) are fixedly installed on the outer wall of the water spray pipe 62. The spray direction of the nozzles is adjustable to ensure that the water flow evenly covers the inner wall of the protective cover 50 for rinsing. Option 3: A long slit is opened vertically on the side of the water spray pipe 62 facing the inner wall of the protective cover 50. The outlet of the water spray pipe 62 is rectangular or conical, and water is sprayed out in a thin sheet from the rectangular or conical slit for rinsing.

[0061] In one specific implementation, reference is made to Figure 3 and Figure 4 The water pressure regulating structure and outlet structure of the spray pipe 62 were further optimized. A regulating valve 67 is installed between the inlet and outlet of the spray pipe 62. Specifically, the regulating valve 67 can be a manual ball valve or an electric regulating valve 67, used to adjust the total water volume and water pressure entering the spray pipe 62. The regulating valve 67 is electrically connected to the control device 65. The control device 65 can automatically or manually control the opening of the regulating valve 67 according to actual needs, thereby achieving precise regulation of the water pressure in the spray pipe 62.

[0062] Furthermore, a rotatable spray head 66 is provided at the outlet of the water spray pipe 62. The spray head 66 is connected to the outlet of the water spray pipe 62 via an adapter, and the rotation angle of the water spray pipe 62 can be set by selecting different adapters according to actual conditions. The rotatable design of the water spray pipe 62 allows the direction of the water flow after the water spray pipe 62 exits to be adjusted as needed.

[0063] In one specific implementation, reference is made to Figure 3 and Figure 4 The structure of the water spray pipe 62 has been further improved, adopting a main-branch type pipeline structure to achieve a wider and more uniform rinsing coverage. The water spray pipe 62 includes a vertically arranged main water pipe 622 and several sub-water pipes 623 extending from the main water pipe 622. Several water spray structures 621 are provided on the side of the main water pipe 622 and each sub-water pipe 623 (i.e., the side facing the inner side of the protective cover 50). The upper end of the main water pipe 622 is connected to the water supply device 63 to receive the water flow from the water supply device 63. After entering the main water pipe 622, the water flows into different sub-water pipes 623 and is sprayed out from the outlet of the sub-water pipe 623. The sub-water pipe 623 is arranged along the moving direction of the spray pipe 62 (from the workbench 30 to the column 20), so that the sub-water pipe 623 can rinse the chips on the base 10 between the protective cover 50 and the workbench 30, and can rinse a wider area of ​​the inner wall of the protective cover 50.

[0064] In one specific implementation, reference is made to Figure 2 and Figure 3 The machine tool is equipped with a drive unit 61 and a water spray pipe 62 on both sides. The water spray pipe 62 on both sides of the machine tool can effectively wash both sides of the machine tool.

[0065] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A machine tool, comprising a base (10), a column (20), a worktable (30), a spindle assembly (40), and a protective cover (50), wherein the column (20) and the worktable (30) are disposed on the base (10), the spindle assembly (40) is disposed on the column (20), and the protective cover (50) covers the base (10), characterized in that, It also includes a chip flushing system (60), which includes: A drive unit (61) is mounted on the protective cover (50); A water spray pipe (62) is connected to the drive device (61), which is used to drive the water spray pipe (62) to move and / or rotate. The outlet of the water spray pipe (62) faces the chip collection area inside the machine tool. A water supply device (63) is connected to the inlet of the spray pipe (62); The sensing device (64) is used to acquire the chip collection information of the chip collection area and generate a water supply signal; A control device (65) is connected to the drive device (61), the sensing device (64) and the water supply device (63). The control device (65) is used to control the drive device (61) and the water supply device (63) to operate according to the water supply signal.

2. The machine tool according to claim 1, characterized in that, The sensing device (64) is a camera (641) installed on the protective cover (50) and a visual recognition module (642) connected to the camera (641). The visual recognition module (642) is used to identify the chip collection information of the chip collection area based on the image obtained by the camera (641) and generate a water supply signal. or, The sensing device (64) is a weight detection unit (643) connected to the chip collection area and a judgment unit (644) connected to the weight detection unit (643). The judgment unit (644) is used to determine the chip collection information of the chip collection area based on the signal of the weight detection unit (643) and generate a water supply signal.

3. The machine tool according to claim 2, characterized in that, The water supply signal includes a first water supply signal located in the chip collection area of ​​the processing area and a second water supply signal located in the chip collection area of ​​the non-processing area. The control device (65) is used to control the drive device (61) to operate according to the first water supply signal, so that the outlet of the water spray pipe (62) is directed toward the chip collection area of ​​the processing area, and to control the water supply device (63) to start water supply; the control device (65) is also used to control the drive device (61) to operate according to the second water supply signal, so that the outlet of the water spray pipe (62) is directed toward the chip collection area of ​​the non-processing area, and to control the water supply device (63) to start water supply.

4. The machine tool according to claim 3, characterized in that, The water spray pipe (62) is movably mounted on the protective cover (50). The control device (65) is also used to control the water spray pipe (62) to move back and forth while spraying water through the drive device (61) according to the water supply signal.

5. The machine tool according to any one of claims 1-4, characterized in that, The water supply signal includes a water spray area signal and a water spray flow rate signal corresponding to the water spray area signal. The control device (65) is used to control the operation of the water supply device (63) according to the water spray area signal and the water spray flow rate signal, so that the water spray pipe (62) sprays water at different water spray flow rates in different water spray areas.

6. The machine tool according to any one of claims 1-4, characterized in that, The water spray pipe (62) is vertically arranged inside the protective cover (50), and the water spray pipe (62) is provided with a plurality of water spray structures (621) along its length, with the water spray structures (621) facing the inner side of the protective cover (50).

7. The machine tool according to claim 6, characterized in that, A regulating valve (67) for adjusting water pressure is provided between the inlet and outlet of the water spray pipe (62); the outlet of the water spray pipe (62) is rectangular or conical, or a rotatable spray head (66) is provided at the outlet of the water spray pipe (62).

8. The machine tool according to claim 6, characterized in that, The water spray pipe (62) includes a main water pipe (622) and a plurality of sub-water pipes (623) extending from the main water pipe (622). The outlets of the main water pipe (622) and the plurality of sub-water pipes (623) face the debris collection area and are provided with a plurality of water spray structures (621) on their sides.

9. The machine tool according to claim 4, characterized in that, The drive device (61) is located outside the protective cover (50). The top of the protective cover (50) is provided with a moving track (51). The moving track (51) is configured as an opening. The water spray pipe (62) passes through the moving track (51) and moves along the moving track (51).

10. The machine tool according to claim 8, characterized in that, The drive device (61) and the water spray pipe (62) are provided on both sides of the machine tool.

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