Clean composite numerical control machine tool for gear machining

Abstract

The utility model relates to a clean composite numerical control machine tool for gear machining, which comprises a guide inclined plate for blanking, a guide inclined plate for blanking, a guide inclined plate for blanking and a guide inclined plate for blanking, a feeding inlet is formed in one end of the metal scrap channel, a feeding outlet is formed in the other end of the metal scrap channel, water filtering holes are formed in the bottom face, and a discharging guiding channel is arranged between the feeding inlet and the tail end of the guiding inclined plate for discharging; the scrap conveying mechanism is used for conveying metal scraps in the metal scrap channel from the feeding inlet to the feeding outlet; the waste chip compressing mechanism is used for receiving the metal waste chips output from the feeding outlet, compressing the metal waste chips and then outputting the metal waste chips; the metal scrap conveying device has the advantages that when metal scraps are conveyed in the metal scrap channel, most cooling water is filtered out by the water filtering holes, meanwhile, extrusion type conveying of the feeding screw is adopted, on one hand, the size of the metal scraps can be preliminarily reduced, on the other hand, residual cooling water in the metal scraps can be extruded out, and finally extrusion compression is conducted through the hydraulic cylinder, so that the size is further reduced; and transfer and storage are convenient.

Description

Technical Field

[0001] This utility model relates to the field of transmission component manufacturing equipment, and in particular to a clean composite CNC machine tool for gear processing. Background Technology

[0002] Composite CNC machine tools (composite machining centers) are high-efficiency CNC equipment that integrates multiple machining functions. These machine tools can complete multiple machining processes of a part in one setup, such as turning, milling, drilling, tapping, and grinding, which greatly improves production efficiency and machining accuracy.

[0003] Machine tools generate metal scrap (which may take the form of thin strips, spirals, or fragments) and metal dust (with a diameter of less than 0.1 μm) during processing. Current methods for handling these metal scraps and dust have the following drawbacks:

[0004] 1. During processing, metal scraps fall into the scrap trough below the machine tool under the influence of gravity and cooling water. Once a certain amount of metal scraps accumulates in the trough, they are manually or via a conveyor belt to be removed from the machine tool and transported to a designated area within the factory for storage, awaiting collection and processing by a relevant company. Because metal scraps may take the form of long strips, spirals, or fragments, and the gaps between adjacent scraps are relatively large, even lightweight scrap piles can occupy a significant amount of storage space, increasing storage costs.

[0005] 2. During the processing, cooling water is discharged together with the scrap. On the one hand, the cooling water is not effectively recycled, and on the other hand, a large amount of cooling water is mixed in with the metal scrap, which affects the stacking and transportation of the metal scrap.

[0006] 3. Although some of the metal dust generated during processing is carried away by cooling water into the waste chip trough, a considerable amount of dust remains suspended in the air and may escape from the gaps in the machine tool's protective door, posing a threat to the health of workers.

[0007] Therefore, this case is brought. Utility Model Content

[0008] The purpose of this invention is to provide a clean composite CNC machine tool for gear processing to solve the above-mentioned defects.

[0009] To achieve the above objectives, the technical solution of this utility model is as follows:

[0010] A cleanroom-grade composite CNC machine tool for gear machining includes a machine body with several machining stations inside, each machining station having a cooling water spray nozzle on one side; comprising:

[0011] The guide ramp for unloading is set below the processing station to receive metal scraps and cooling water falling from the processing station;

[0012] A metal scrap channel is horizontally positioned below a guide ramp for unloading. A feeding inlet is provided at one end of the metal scrap channel, and a unloading guide channel is provided between the feeding inlet and the end of the guide ramp for unloading. Metal scrap and cooling water enter the feeding inlet along the guide ramp for unloading and the unloading guide channel. A feeding outlet is provided at the other end of the metal scrap channel, and a water filter hole is provided on the bottom surface of the metal scrap channel.

[0013] The waste chip conveying mechanism is used to transport metal waste chips in the metal waste chip channel from the feeding inlet to the feeding outlet;

[0014] The cooling water filtration mechanism is used to receive cooling water falling from the filter holes, filter it, and then output it.

[0015] The waste metal compression mechanism is used to receive metal waste metal from the feed outlet, compress it, and then output it.

[0016] The dust extraction and filtration mechanism is used to extract and filter dust from inside the machine.

[0017] Furthermore, a vibrator is installed on the bottom surface of the guide plate for feeding.

[0018] Furthermore, the waste chip conveying mechanism adopts a screw feeding mechanism, which includes a screw and a screw drive unit. The metal waste chip channel adopts a horizontally arranged hollow round tube. The inner diameter of the hollow round tube matches the screw part, and the length of the hollow round tube is 1.5-2.0 times that of the screw part. The screw drive unit is installed on the machine body and is used to drive the screw to rotate.

[0019] Furthermore, the machine body is provided with a gate and a gate driving mechanism. The gate is located above the outer side of the feeding outlet, and the gate is provided with a rack that is slidably connected to the side wall of the machine tool. The gate driving mechanism includes a gear that meshes with the rack and a gear driving part. The gear driving part drives the gear to rotate, causing the rack to rise and fall, thereby driving the gate to open and close the feeding outlet.

[0020] Furthermore, the edge of the gate is edged.

[0021] Furthermore, the waste chip compression mechanism includes a compression box and a hydraulic cylinder. The compression box is installed on one side of the feeding outlet, and the hydraulic cylinder is installed directly above the compression box with a pressure plate installed on its telescopic end. The top opening of the compression box forms the pressure plate inlet and outlet, and the opening on the side of the compression box facing the feeding outlet forms the waste chip inlet. The metal waste chips pushed out from the feeding outlet can just enter the compression box through the waste chip inlet. The pressure plate is used to compress and compact the metal waste chips in the compression box.

[0022] The compression box includes four side plates (plate 1, plate 2, plate 3, and plate 4) and a bottom plate. The waste inlet is located on plate 1, plate 2 is opposite to plate 1, and plates 3 and 4 are opposite to each other. Plate 1, plate 3, and plate 4 are fixed to the bottom plate as a whole. Plate 2 is an independent and movable flip plate. The bottom of plate 2 is rotatably connected to the bottom plate by a hinge. Plate 2 is connected to the adjacent plates 3 and 4 by a locking mechanism.

[0023] Furthermore, the cooling water filtration mechanism includes a water-filtering guide plate, several water-filtering tanks, and a first water pump. The water-filtering guide plate is located below the metal waste channel and is used to receive cooling water falling from the filter holes. The water-filtering tanks are located below the water-filtering guide plate and are arranged in a straight line. The water-filtering tanks include at least a coarse filter tank, a fine filter tank, and a clear water tank. The coarse filter tank is located below the end of the water-filtering guide plate and is used to receive cooling water sliding down from the water-filtering guide plate. The coarse filter tank and the fine filter tank share a side wall, and this side wall has an opening and is equipped with a first filter screen. The fine filter tank is equipped with a magnet seat, and a magnet is installed on the magnet seat. The fine filter tank and the clear water tank share a side wall, and this side wall has an opening and is equipped with a second filter screen. The filtration accuracy of the second filter screen is higher than that of the first filter screen. The first water pump is installed in the clear water tank and is used to output the cooling water in the clear water tank.

[0024] Furthermore, the end of the guide plate for water filtration is provided with a blocking protrusion.

[0025] Furthermore, the machine body is provided with a water storage tank and a water pump chamber. The water storage tank is provided with a first water inlet and a second water inlet. The first water inlet is connected to the output end of the first water pump and is used to receive cooling water output from the clean water tank. The second water inlet is used to receive supplementary cooling water input from outside the machine body.

[0026] The pump chamber is equipped with a second water pump and several third water pumps, with each third water pump corresponding to a cooling water nozzle. The starting end of the material feeding guide plate has an arc surface that extends upward to form a water guide plate. A drain outlet is located above the water guide plate inside the machine body. The drain outlet is flat and close to the water guide plate. The second water pump is used to lift the cooling water in the water storage tank to the drain outlet. The cooling water is output through the drain outlet and flows down the water guide plate to the material feeding guide plate. The third water pump is used to transport the cooling water in the water storage tank to the cooling water nozzle.

[0027] Furthermore, the dust extraction and filtration mechanism includes a suction port, a duct, a fan, and a filter. The suction port is located on one side of the processing station. The air intake of the fan is connected to the suction port through the duct. The air outlet of the fan is connected to the input end of the filter through the duct. A third filter screen is installed at the suction port.

[0028] The air containing metal dust inside the machine body enters the air duct through the suction port and then flows to the filter. After the metal dust is removed by the filter, clean air is output.

[0029] The filter is a filter with a polytetrafluoroethylene membrane filter bag installed.

[0030] The advantages of this utility model are:

[0031] 1. During processing, metal scraps containing cooling water are transported in the scrap channel. Most of the cooling water is filtered out by the filter holes. Simultaneously, the feeding screw uses a compression conveying method, which initially reduces the volume of the scrap pile and squeezes out any residual cooling water. After being output to the compression box, the scraps are further compressed by a hydraulic cylinder, facilitating transfer and storage and significantly reducing storage costs. Additionally, a guide ramp inside the machine guides the scraps into the scrap channel, preventing accumulation at the workstation.

[0032] 2. The collected cooling water passes through a coarse filter box and a fine filter box in sequence. The two-stage filter screen combined with the magnetic adsorption process effectively removes suspended metal particles and other impurities from the water, significantly improving the water quality. Finally, after entering the clear water tank, it can be reused in the processing process by a water pump, realizing the recycling of cooling water. In addition, a downward-flush water outlet is set above the starting end of the guide ramp for material feeding. The downward force of the water can wash away the metal scraps and metal dust adsorbed on the ramp, and let them enter the metal scrap channel with the water flow.

[0033] 3. The dust extraction and filtration mechanism uses a membrane filter bag, which can filter out dust particles with a diameter of less than 0.1 microns. It has a good filtering effect on metal dust generated during processing, ensuring a healthy working environment in the workshop. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the internal structure of the cleanroom composite CNC machine tool in the embodiment;

[0035] Figure 2 for Figure 1 Enlarged internal schematic diagram of the Zhongjing composite CNC machine tool (excluding dust suction and filtration mechanism);

[0036] Figure 3 for Figure 2 Enlarged diagram of part A in the diagram;

[0037] Figure 4 for Figure 2 The diagram shows metal scraps falling into the guide plate for unloading after the processing station is started.

[0038] Figure 5 for Figure 4 The diagram shows the state of metal scrap on the guide inclined plate entering the metal scrap channel through the feeding guide channel and being conveyed to the compression box by the screw feeding mechanism.

[0039] Figure 6 for Figure 5 The diagram shows the state when the metal scrap in the compression box reaches the storage limit, the gate falls, and the hydraulic cylinder drives the pressure plate into the compression box.

[0040] Figure 7 for Figure 6 The diagram shows the state in which the metal scrap inside the compression box is compressed and compacted, and the tilting plate is opened.

[0041] Figure 8 This is a three-dimensional structural diagram of the compression box in the embodiment;

[0042] Figure 9 for Figure 8 A schematic diagram showing the middle flip panel in the open state;

[0043] Figure 10 This is a schematic diagram of the internal structure of a filter with a polytetrafluoroethylene membrane filter bag installed in the embodiment.

[0044] Label Explanation

[0045] 1. Processing station;

[0046] 2. Cooling water nozzles;

[0047] 3. Guide sloping plate for material feeding; 301. Vibrator; 302. Water guide plate;

[0048] 4. Metal scrap channel; 401. Feed inlet; 402. Feed outlet; 403. Filter hole;

[0049] 5. Material feeding guide channel;

[0050] 6. Waste material conveying mechanism;

[0051] 7. Cooling water filtration mechanism; 701. Guide ramp for water filtration; 702. Barrier protrusion; 703. First water pump; 704. Coarse filter box; 705. Fine filter box; 706. Magnet; 707. First filter screen; 708. Second filter screen; 709. Clean water tank; 710. Second water pump; 711. Third water pump; 712. Drain outlet; 713. Water storage tank; 714. First water inlet; 715. Second water inlet;

[0052] 8. Dust extraction and filtration mechanism; 801. Suction port; 802. Third filter screen; 803. Air duct; 804. Fan; 805. Filter; 8051. Polytetrafluoroethylene membrane filter bag;

[0053] 9. Gate; 901. Rack; 902. Gear; 903. Blade;

[0054] 10. Waste chip compression mechanism; 1001. Compression box; 10011. Pressure plate inlet and outlet; 10012. Waste chip input port; 10013. Plate 1; 10014. Plate 2; 10015. Plate 3; 10016. Plate 4; 10017. Base plate; 10018. Lock; 1002. Hydraulic cylinder; 1003. Pressure plate;

[0055] 11. Metal scraps. Detailed Implementation

[0056] The present invention will be further described in detail below with reference to the embodiments. It should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" etc. indicated by the accompanying drawings are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0057] This embodiment proposes a clean composite CNC machine tool for gear machining, such as... Figures 1 to 10 As shown, the machine includes a body, and two processing stations 1 are provided inside the body. The two processing stations 1 include fixtures for clamping shafts. At the same time, each processing station 1 is provided with a cooling water nozzle 2 on one side. When the processing station 1 is in operation, the cooling water nozzle 2 is used to spray cooling water onto the processing position to cool the workpiece and wash away the metal shavings and metal dust generated during processing.

[0058] Below processing station 1 is a guide ramp 3 for receiving metal scrap and cooling water falling from processing station 1. Below the guide ramp 3 is a horizontally arranged metal scrap channel 4. One end of the metal scrap channel 4 is provided with a feeding inlet 401, and a feeding guide channel 5 is provided between the feeding inlet 401 and the end of the guide ramp 3. Metal scrap and cooling water enter the feeding inlet 401 along the guide ramp 3 and the feeding guide channel 5. The other end of the metal scrap channel 4 is provided with a feeding outlet 402, and the bottom surface of the metal scrap channel 4 is provided with water filter holes 403. A scrap conveying mechanism 6 is provided inside the metal scrap channel 4 to transport the metal scrap in the metal scrap channel 4 from the feeding inlet 401 to the feeding outlet 402.

[0059] In this embodiment, the waste chip conveying mechanism 6 adopts a screw feeding mechanism, which includes a screw and a screw drive unit. The metal waste chip channel 4 is a horizontally arranged hollow cylindrical tube. The inner diameter of the hollow cylindrical tube matches the screw portion, and the length of the hollow cylindrical tube is 1.5-2.0 times that of the screw portion. The screw drive unit is mounted on the machine body and is used to drive the screw to rotate. When the metal waste chips with cooling water generated during processing are conveyed in the metal waste chip channel 4, most of the cooling water is filtered out by the water filter holes 403. At the same time, the extrusion conveying by the feeding screw can initially reduce the volume of the metal waste chip pile and squeeze out the residual cooling water in the metal waste chip pile. Because a screw feeding mechanism is used, the metal scrap channel 4 needs to adopt a circular tube structure, so that the size of the discharge guide channel 5 must match the size of the circular tube. In this embodiment, the discharge guide channel 5 adopts a bucket-shaped structure that is larger at the top and smaller at the bottom. The large opening is used to receive the upper discharge guide plate 3, and the lower opening is used to connect to the feeding inlet 401 on the lower circular tube. The length of this hollow circular tube is 1.5-2.0 times that of the screw section. In this way, the metal scrap initially squeezed out by the screw still needs to move a certain distance in the metal scrap channel 4, so that the residual cooling water inside has enough time to fall to the water filter hole 403.

[0060] Preferably, in this embodiment, a vibrator 301 is provided on the bottom surface of the guide inclined plate 3 for feeding. Through vibration, the metal scraps remaining on the guide inclined plate 3 for feeding can slide down the inclined surface.

[0061] like Figure 2 As shown, a cooling water filtration mechanism 7 is provided below the metal scrap channel 4 to receive cooling water falling from the filter holes 403, filter it, and then output it. Specifically, the cooling water filtration mechanism 7 includes a filtration guide plate 701, several filter water tanks, and a first water pump 703. The filtration guide plate 701 is located below the metal scrap channel 4 to receive cooling water falling from the filter holes 403. The filter water tanks are located below the filtration guide plate 701 and are arranged in a straight line. The filter water tanks include at least a coarse filter tank 704, a fine filter tank 705, and a clean water tank 709. The coarse filter tank 704 is located below the end of the filtration guide plate 701. The coarse filter box 704 and the fine filter box 705 share a side wall for receiving cooling water sliding down from the guide ramp 701 for water filtration. This side wall has an opening and is fitted with a first filter screen 707. The fine filter box 705 contains a magnet holder with a magnet 706 mounted on it. The fine filter box 705 and the clear water tank 709 share a side wall, which also has an opening and is fitted with a second filter screen 708. The first water pump 703 is housed in the clear water tank 709 for outputting cooling water from the clear water tank 709. Preferably, the second filter screen 708 has a higher filtration accuracy than the first filter screen 707.

[0062] like Figure 7 As shown, the cooling water falling through the filter holes 403 (which may contain small-diameter metal fragments and even smaller-diameter metal dust) enters the coarse filter box 704 under the guidance of the guide plate 701. Most of the metal fragments in the cooling water are blocked by the first filter screen 707 and settle in the coarse filter box 704. The cooling water entering the fine filter box 705 after passing through the first filter screen 707 has metal fragments and metal dust attracted by the magnet 706. Meanwhile, the metal fragments not attracted by the magnet 706 are intercepted by the second filter screen 708, and the unattracted metal dust enters the clean water tank 709. However, the amount of this dust is extremely small, allowing the cooling water in the clean water tank 709 to be reused.

[0063] Preferably, the end of the guide ramp 701 for water filtration is provided with a blocking protrusion 702, which allows some metal debris to accumulate in front of the blocking protrusion 702, preventing it from entering the water filtration tank. An inspection door should be provided at a suitable location on the side wall of the machine body to facilitate regular cleaning of the guide ramp 701 for water filtration, the water filtration holes 403 of the metal debris channel 4, and the water filtration tank.

[0064] like Figure 3 and Figure 4 As shown, the machine body is equipped with a water storage tank 713 and a water pump chamber. The water storage tank 713 is equipped with a first water inlet 714 and a second water inlet 715. The first water inlet 714 is connected to the output end of the first water pump 703 and is used to receive cooling water output from the clean water tank 709. The second water inlet 715 is used to receive supplementary cooling water input from outside the machine body (whether to start water replenishment can be realized by a liquid level sensor, which is existing technology and will not be described in detail here). The pump chamber is equipped with a second water pump 710 and several third water pumps 711, with each third water pump 711 corresponding to a cooling water nozzle 2. The starting end of the unloading guide ramp 3 has an arc surface that extends upward to form a water guide plate 302. A drain outlet 712 is located above the water guide plate 302 inside the machine body. The drain outlet 712 is flat and closely attached to the water guide plate 302. The second water pump 710 is used to lift the cooling water in the water storage tank 713 to the drain outlet 712. The cooling water is output through the drain outlet 712 and flows down the water guide plate 302 to the unloading guide ramp 3. The third water pumps 711 are used to transport the cooling water in the water storage tank 713 to the cooling water nozzles 2. A downward-flowing water outlet is provided above the starting end of the unloading guide ramp 3. The downward force of the water can be used to flush away metal scraps and metal dust adsorbed on the ramp surface, causing them to enter the metal scrap channel 4 with the water flow.

[0065] like Figure 2As shown, a waste metal compression mechanism 10 is provided on one side of the machine body. The waste metal compression mechanism 10 is used to receive metal waste metal discharged from the feeding outlet 402, compress it, and then output it. Specifically, the waste metal compression mechanism 10 includes a compression box 1001 and a hydraulic cylinder 1002. The compression box 1001 is installed on one side of the feeding outlet 402, and the hydraulic cylinder 1002 is installed directly above the compression box 1001 with a pressure plate 1003 installed at its telescopic end. The top opening of the compression box 1001 forms a pressure plate inlet / outlet 10011, and the opening on the side of the compression box 1001 facing the feeding outlet 402 forms a waste metal input port 10012. The metal waste metal discharged from the feeding outlet 402 can just pass through the waste metal input port 10012 into the compression box 1001. The pressure plate 1003 is used to compress and compact the metal waste metal inside the compression box 1001. Figure 8 and Figure 9 The compression box 1001 includes four side plates: plate 10013, plate 2 10014, plate 3 10015, and plate 4 10016, and a bottom plate 10017. The waste inlet 10012 is located on plate 1 10013. Plate 2 10014 is opposite to plate 1 10013, and plates 3 10015 and 4 10016 are opposite to each other. Plate 1 10013, plate 3 10015, and plate 4 10016 are fixed to the bottom plate 10017 as a whole. Plate 2 10014 is an independent and movable flip plate. The bottom of plate 2 10014 is rotatably connected to the bottom plate 10017 by a hinge. Plate 2 10014 is connected to the adjacent plates 3 10015 and 4 10016 by a latch 10018. When the compression box 1001 is full of metal scrap, the latch 10018 can be opened manually, the flip plate 10014 can be flipped over, and the compressed metal scrap can be removed.

[0066] Since most of the metal scrap is long, thin, or spiral-shaped, some scrap may remain in the metal scrap channel 4, while others may be caught on the scrap inlet 10012 of the compression chamber 1001. When the pressure plate 1003 presses down, these scraps may be carried out by the pressure plate 1003 and become entangled on the piston shaft of the pressure plate 1003. To avoid this, the machine body in this embodiment is also equipped with a gate 9 and a gate drive mechanism. Figure 5 and Figure 6As shown, the gate 9 is located above the outer side of the feed outlet 402, and the gate 9 is provided with a rack 901 that is slidably connected to the side wall of the machine tool. The gate drive mechanism includes a gear 902 that meshes with the rack 901 and a gear drive unit. The gear drive unit drives the gear 902 to rotate, causing the rack 901 to rise and fall, thereby driving the gate 9 to open and close the feed outlet 402. At the same time, the edge of the gate 9 has a cutting edge 903. When the gate 9 descends to close the feed outlet 402, its cutting edge 903 can cut thin strips and spiral metal scraps (the metal scraps produced by turning and milling are thin and easy to cut), so that the metal scraps suspended in the scrap input port 10012 can fall into the compression box 1001.

[0067] like Figure 1 and Figure 10 As shown, the equipment also includes a dust extraction and filtration mechanism 8, used to extract and filter dust from inside the machine body. The dust extraction and filtration mechanism 8 includes a suction port 801, an air duct 803, a fan 804, and a filter 805. The suction port 801 is located on one side of the processing station 1. The air intake of the fan 804 is connected to the suction port 801 through the air duct 803, and the air outlet of the fan 804 is connected to the input end of the filter 805 through the air duct 803. A third filter screen 802 is installed at the suction port 801. The filtration accuracy of the third filter screen 802 is sufficient to block large-diameter metal waste, but metal dust, due to its extremely small particle size, can pass through the third filter screen 802 and enter the air duct 803. The filter 805 is a filter 805 equipped with a polytetrafluoroethylene (PTFE) membrane filter bag 8051. This type of filter 805 is existing technology. By introducing dusty air into the membrane filter bag, the dust cannot pass through the pores of the membrane filter bag and is retained in the bag, while clean air can pass through the pores of the membrane filter bag and be output. Air containing metal dust inside the machine body enters the air duct 803 through the suction port 801 and then reaches the filter 805. After the metal dust is filtered out by the filter 805, clean air is output. The dust suction and filtration mechanism 8 ensures a healthy working environment in the workshop.

[0068] The operation procedure for this cleanroom composite CNC machine tool for gear machining is as follows:

[0069] like Figure 4 As shown, when processing station 1 is started, the first water pump 703, the second water pump 710, and the third water pump 711 are started, the gate is opened, and the screw feeding mechanism is started.

[0070] Metal scraps are generated during processing. Cooling water and metal scraps fall together onto the guide plate 3 for material feeding. Water outlet 712 flushes the guide plate 3 for material feeding.

[0071] like Figure 5 As shown, the metal scraps on the guide inclined plate 3 are fed into the feeding inlet 401 of the metal scrap channel 4 through the feeding guide channel 5 under the action of gravity and water flow.

[0072] The screw feeding mechanism transports metal scrap. During the transport process, cooling water and small-diameter metal scrap fall through the water filter holes 403 onto the guide plate 701 for water filtration. The metal scrap transported by the screw accumulates in the section of the metal scrap channel 4 without the screw until it is pushed forward by the metal scrap transported by the screw. During the forward push, the cooling water in the metal scrap pile further flows out and enters the water filter holes 403 until it is pushed into the compression box 1001. The hydraulic cylinder 1002 can be set to start at fixed intervals. When it starts, the gate closes in conjunction with the hydraulic cylinder 1002, and the hydraulic cylinder 1002 drives the pressure plate 1003 to descend, compressing and compacting the metal scrap pile in the box. When the metal scrap pile in the box reaches the predetermined height, the equipment alarms, reminding the operator to open the compression box 1001 and remove the metal scrap.

[0073] like Figure 6 As shown, the cooling water falling through the filter hole 403 is purified and then circulated to the water storage tank 713 by the first water pump 703 for reuse. Figure 1 As shown, the dust inside the machine body is sucked out by the dust suction and filtration mechanism 8, and then filtered by the filter 805 before being output.

[0074] The above embodiments are only used to explain the concept of this utility model, and are not intended to limit the protection of this utility model. Any non-substantial modifications made to this utility model using this concept should fall within the protection scope of this utility model.

Claims

1. A clean composite numerical control machine tool for gear machining, comprising a machine body, a plurality of machining stations are arranged in the machine body, and a cooling water nozzle is arranged on one side of each machining station; characterized in that, include: The guide ramp for unloading is set below the processing station to receive metal scraps and cooling water falling from the processing station; A metal scrap channel is horizontally positioned below a guide ramp for unloading. A feeding inlet is provided at one end of the metal scrap channel, and a unloading guide channel is provided between the feeding inlet and the end of the guide ramp for unloading. Metal scrap and cooling water enter the feeding inlet along the guide ramp for unloading and the unloading guide channel. A feeding outlet is provided at the other end of the metal scrap channel, and a water filter hole is provided on the bottom surface of the metal scrap channel. The waste chip conveying mechanism is used to transport metal waste chips in the metal waste chip channel from the feeding inlet to the feeding outlet; The cooling water filtration mechanism is used to receive cooling water falling from the filter holes, filter it, and then output it. The waste metal compression mechanism is used to receive metal waste metal from the feed outlet, compress it, and then output it. The dust extraction and filtration mechanism is used to extract and filter dust from inside the machine.

2. A clean hybrid CNC machine tool for machining gears as claimed in claim 1, wherein, A vibrator is installed on the bottom surface of the guide plate used for feeding.

3. The clean hybrid CNC machine tool for machining gears as claimed in claim 1, wherein, The waste chip conveying mechanism adopts a screw feeding mechanism, which includes a screw and a screw drive unit. The metal waste chip channel adopts a horizontally arranged hollow round tube. The inner diameter of the hollow round tube matches the screw part, and the length of the hollow round tube is 1.5-2.0 times that of the screw part. The screw drive unit is installed on the machine body and is used to drive the screw to rotate.

4. The clean hybrid CNC machine for gear machining as claimed in claim 1, wherein, The machine body is equipped with a gate and a gate driving mechanism. The gate is located above the outside of the feeding outlet, and the gate is equipped with a rack that is slidably connected to the side wall of the machine tool. The gate driving mechanism includes a gear that meshes with the rack and a gear driving part. The gear driving part drives the gear to rotate, causing the rack to rise and fall, thereby driving the gate to open and close the feeding outlet.

5. A clean hybrid CNC machine tool for machining gears as claimed in claim 4 wherein, The edge of the gate is sharpened.

6. The clean hybrid CNC machine for gear machining as claimed in claim 1, wherein, The waste chip compression mechanism includes a compression box and a hydraulic cylinder. The compression box is installed on one side of the feeding outlet, and the hydraulic cylinder is installed directly above the compression box with a pressure plate installed on its telescopic end. The top opening of the compression box forms the pressure plate inlet and outlet, and the opening on the side of the compression box facing the feeding outlet forms the waste chip inlet. The metal waste chips pushed out from the feeding outlet can just enter the compression box through the waste chip inlet. The pressure plate is used to compress and compact the metal waste chips in the compression box. The compression box includes four side plates (plate 1, plate 2, plate 3, and plate 4) and a bottom plate. The waste inlet is located on plate 1, plate 2 is opposite to plate 1, and plates 3 and 4 are opposite to each other. Plate 1, plate 3, and plate 4 are fixed to the bottom plate as a whole. Plate 2 is an independent and movable flip plate. The bottom of plate 2 is rotatably connected to the bottom plate by a hinge. Plate 2 is connected to the adjacent plates 3 and 4 by a locking mechanism.

7. The clean hybrid CNC machine for gear machining as claimed in claim 1, wherein, The cooling water filtration mechanism includes a guide plate for water filtration, several filter water tanks, and a first water pump. The guide plate for water filtration is located below the metal waste channel and is used to receive cooling water falling from the filter holes. The filter water tanks are located below the guide plate for water filtration and are arranged in a straight line. The filter water tanks include at least a coarse filter tank, a fine filter tank, and a clear water tank. The coarse filter tank is located below the end of the guide plate for water filtration and is used to receive cooling water sliding down from the guide plate for water filtration. The coarse filter tank and the fine filter tank share a side wall, and this side wall has an opening and is equipped with a first filter screen. The fine filter tank is equipped with a magnet seat, and a magnet is installed on the magnet seat. The fine filter tank and the clear water tank share a side wall, and this side wall has an opening and is equipped with a second filter screen. The filtration accuracy of the second filter screen is higher than that of the first filter screen. The first water pump is installed in the clear water tank for outputting the cooling water in the clear water tank.

8. The clean composite CNC machine tool for gear machining as described in claim 7, characterized in that, The end of the guide plate for water filtration is provided with a blocking protrusion.

9. The clean hybrid CNC machine for gear machining as claimed in claim 7, wherein, The machine body is equipped with a water storage tank and a water pump chamber. The water storage tank is equipped with a first water inlet and a second water inlet. The first water inlet is connected to the output end of the first water pump and is used to receive cooling water output from the clean water tank. The second water inlet is used to receive supplementary cooling water input from outside the machine body. The pump chamber is equipped with a second water pump and several third water pumps, with each third water pump corresponding to a cooling water nozzle. The starting end of the material feeding guide plate has an arc surface that extends upward to form a water guide plate. A drain outlet is located above the water guide plate inside the machine body. The drain outlet is flat and close to the water guide plate. The second water pump is used to lift the cooling water in the water storage tank to the drain outlet. The cooling water is output through the drain outlet and flows down the water guide plate to the material feeding guide plate. The third water pump is used to transport the cooling water in the water storage tank to the cooling water nozzle.

10. The clean hybrid CNC machine tool for machining gears as claimed in claim 1 wherein, The dust extraction and filtration mechanism includes an extraction port, a duct, a fan, and a filter. The extraction port is located on one side of the processing station. The air intake of the fan is connected to the extraction port through the duct. The air outlet of the fan is connected to the input end of the filter through the duct. A third filter screen is installed at the extraction port. The air containing metal dust inside the machine body enters the air duct through the suction port and then flows to the filter. After the metal dust is removed by the filter, clean air is output. The filter is a filter with a polytetrafluoroethylene membrane filter bag installed.

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