Scrap treatment system of clean composite numerical control machine tool for gear machining

By setting guide sloping plates, screw feeding, and hydraulic compression mechanisms on composite CNC machine tools, the problem of low efficiency in metal scrap processing has been solved, achieving efficient reduction of scrap and effective filtration of dust, reducing storage costs and improving the working environment.

CN224129267UActive Publication Date: 2026-04-17SHENGZHOU SHENGLIN MACHINERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENGZHOU SHENGLIN MACHINERY CO LTD
Filing Date
2025-05-21
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing composite CNC machine tools have low efficiency in handling metal scraps and dust generated during processing, occupy a large storage space, and increase storage costs.

Method used

A waste chip treatment system was designed, which includes a guide inclined plate for feeding, a metal waste chip channel, a waste chip conveying mechanism, a waste chip compression mechanism, and a dust suction and filtration mechanism. The guide inclined plate guides the waste chips into the channel, and the screw feeding mechanism squeezes and conveys them. Combined with hydraulic cylinder compression, the waste chips are initially reduced and further compacted. The system is equipped with a water filter and a filter to treat cooling water and dust.

Benefits of technology

It effectively reduces the volume of metal scrap, lowers storage costs, improves processing efficiency, and ensures a clean workshop environment.

✦ Generated by Eureka AI based on patent content.

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Abstract

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

Technical Field

[0001] This utility model relates to the field of transmission component manufacturing equipment, and in particular to a waste chip treatment system for a clean composite CNC machine tool used 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] During processing, metal scraps fall into a scrap trough beneath the machine tool under the influence of gravity and cooling water. Once a certain amount of 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 can take the form of long strips, spirals, or fragments, and the gaps between adjacent scraps are relatively large, even lightweight scrap piles can occupy significant storage space, increasing storage costs.

[0005] Therefore, this case is brought. Utility Model Content

[0006] The purpose of this invention is to provide a waste chip treatment system for a clean composite CNC machine tool used in gear processing, so as to solve the above-mentioned defects.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] A waste chip treatment system for a clean composite CNC machine tool used in gear machining, installed on the machine tool body, includes:

[0009] The guide ramp for unloading is set below the machining station of the machine tool to receive metal scraps and cooling water falling from the machining station;

[0010] 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.

[0011] 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;

[0012] The waste metal compression mechanism is used to receive metal waste metal from the feed outlet, compress it, and then output it.

[0013] Furthermore, a vibrator is installed on the bottom surface of the guide plate for feeding.

[0014] 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 which matches the screw part. The screw drive unit is mounted on the machine body and is used to drive the screw to rotate.

[0015] Furthermore, the length of the hollow cylindrical tube is 1.5-2.0 times that of the screw section.

[0016] 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.

[0017] Furthermore, the edge of the gate is edged.

[0018] 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.

[0019] Furthermore, 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 via a hinge. Plate 2 is connected to the adjacent plates 3 and 4 via a locking mechanism.

[0020] The advantages of this invention are as follows: During the processing, most of the cooling water in the metal scrap generated is filtered out by the filter holes while it is being transported in the metal scrap channel. Simultaneously, the extrusion conveying by the feeding screw reduces the volume of the metal scrap pile initially and squeezes out any residual cooling water. After being output to the compression box, the metal scrap is further compressed by a hydraulic cylinder, further reducing its volume and facilitating transport and storage, thus significantly lowering storage costs. Additionally, a guide ramp inside the machine guides the metal scrap into the metal scrap channel, preventing its accumulation at the workstation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the internal structure of the cleanroom composite CNC machine tool in the embodiment;

[0022] Figure 2 for Figure 1 Enlarged internal schematic diagram of the Zhongjing composite CNC machine tool (excluding dust suction and filtration mechanism);

[0023] Figure 3 for Figure 2 Enlarged diagram of part A in the diagram;

[0024] Figure 4 for Figure 2 The diagram shows metal scraps falling into the guide plate for unloading after the processing station is started.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] Figure 8 This is a three-dimensional structural diagram of the compression box in the embodiment;

[0029] Figure 9 for Figure 8 A schematic diagram showing the middle flip panel in the open state;

[0030] Figure 10 This is a schematic diagram of the internal structure of a filter with a polytetrafluoroethylene membrane filter bag installed in the embodiment.

[0031] Label Explanation

[0032] 1. Processing station;

[0033] 2. Cooling water nozzles;

[0034] 3. Guide sloping plate for material feeding; 301. Vibrator; 302. Water guide plate;

[0035] 4. Metal scrap channel; 401. Feed inlet; 402. Feed outlet; 403. Filter hole;

[0036] 5. Material feeding guide channel;

[0037] 6. Waste material conveying mechanism;

[0038] 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;

[0039] 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;

[0040] 9. Gate; 901. Rack; 902. Gear; 903. Blade;

[0041] 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;

[0042] 11. Metal scraps. Detailed Implementation

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] like Figure 3 and Figure 4As 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.

[0052] like Figure 2 As 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 9The 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.

[0053] 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 6 As 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.

[0054] like Figure 1 and Figure 10As 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.

[0055] The operation procedure for this cleanroom composite CNC machine tool for gear machining is as follows:

[0056] 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.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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 swarf disposal system for a clean composite CNC machine tool for gear machining, provided on a machine body of the machine tool, characterized by, include: The guide ramp for unloading is set below the machining station of the machine tool to receive metal scraps and cooling water falling from the machining 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 waste metal compression mechanism is used to receive metal waste metal from the feed outlet, compress it, and then output it.

2. A swarf disposal system for a clean hybrid CNC machine tool for gear machining as claimed in claim 1, characterised in that, A vibrator is installed on the bottom surface of the guide plate used for feeding.

3. The swarf disposal system for a clean hybrid CNC machine tool for gear machining according to 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. The screw drive unit is installed on the machine body and is used to drive the screw to rotate.

4. The swarf disposal system for a clean hybrid CNC machine tool for gear machining according to claim 3, characterized in that, The length of the hollow cylindrical tube is 1.5-2.0 times that of the screw section.

5. The swarf disposal system for a clean hybrid CNC machine tool for gear machining according to 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.

6. A swarf disposal system for a clean hybrid CNC machine tool for gear machining as claimed in claim 5, characterised in that, The edge of the gate is sharpened.

7. The swarf disposal system for a clean hybrid CNC machine tool for gear machining according to 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.

8. The swarf disposal system for a clean hybrid CNC machine tool for gear machining according to claim 7, characterized in that, 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.