A machine tool driving control device with chip removal and coolant recovery functions

Abstract

The application belongs to the technical field of combined machine tools, and particularly discloses a machine tool driving control device with chip removal and cooling liquid recycling functions, which comprises a combined machine tool, a chip removal box, a first motor, a sliding rod and a screw rod. The combined machine tool is provided with a main driving motor and a feeding system driven by the main driving motor. The first motor is electrically connected with the main driving motor through an external control system. The first motor is arranged at the rear end outside of the chip removal box. The chip removal box is arranged at the rear end inside of the combined machine tool. The combined machine tool is in communication with the inside of the chip removal box through a cooling liquid discharge port arranged on the inside of the combined machine tool. Slides are fixedly installed on the inner walls of the chip removal box. Supports are slidingly installed on the outer sides of the slides. The supports are connected with spring balancing pieces through lifting pieces arranged on the upper ends of the supports. The application can efficiently separate chips and cooling liquid, realize automatic cleaning, compression of long chips and intelligent recycling of cooling liquid, and improve the continuous machining capacity of the machine tool.

Description

Technical Field

[0001] This invention belongs to the field of combined machine tool technology, and specifically discloses a machine tool drive control device with chip removal and coolant recovery functions. Background Technology

[0002] During machining in a combined machining center (such as a multi-functional integrated machine tool for turning, milling, drilling, and grinding), the high-speed friction between the cutting tool and the workpiece generates a large amount of metal chips (including fine granular chips and long, coiled chips). Simultaneously, a large amount of coolant must be used for lubrication and cooling. The coolant mixes with the chips to form a solid-liquid two-phase flow, which must be separated to allow for coolant recycling and chip recovery.

[0003] Currently, most machine tools are equipped with chip conveyors (such as chain-type, scraper-type, or spiral chip conveyors) that are typically installed independently at the bottom of the machine. After the chips flow into the chip collection box with the coolant, they are transported to the collection box by gravity settling or mechanical scraping. However, these traditional devices have the following prominent problems in practical applications: When turning, milling, or grinding difficult-to-machine materials (such as titanium alloys and high-temperature alloys), some spiral-shaped or entangled long chips are generated. These long chips easily become entangled and get stuck in the gaps of the chip conveyor chain, the edges of the scraper, or the pump inlet, causing blockages in the chip removal channel. Once blocked, operators need to stop the machine and manually clean it, which not only affects production efficiency but also increases labor intensity and safety risks. Furthermore, the long chips accumulate loosely in the collection box, resulting in a large volume that occupies a significant amount of workshop space, and subsequent compression processing is costly.

[0004] Existing chip removal devices typically use magnetic suction plates or scrapers driven by independent motors. Their movement rhythm is not correlated with the machine tool's main drive system, resulting in a lack of coordination between chip removal and the machining process. This can easily lead to untimely chip removal or idle operation. Furthermore, the independent drive method increases the complexity of the machine tool's electrical control and equipment costs, and the coordination error between the chip removal motor and the main drive motor affects chip removal efficiency.

[0005] In summary, existing chip removal devices struggle to efficiently handle mixed-form chips (especially long, coiled chips) generated from turning, milling, and grinding simultaneously, and lack intelligent control capabilities, failing to achieve coolant classification and recycling. Therefore, there is an urgent need for a machine tool drive control device capable of actively adsorbing and separating waste chips in real time, specifically targeting long chips, and simultaneously possessing chip removal and coolant recycling functions, in order to improve the continuous machining capability of composite machine tools and extend coolant lifespan. Summary of the Invention

[0006] The purpose of this invention is to solve the problems existing in the background art, and to propose a machine tool drive control device with chip removal and coolant recovery functions, including a combination machine tool, a chip box, a first motor, a slide bar, and a lead screw. The combination machine tool has a main drive motor and a feed system driven by the main drive motor. The first motor is electrically connected to the main drive motor through an external control system. The first motor is located outside the rear end of the chip box, and the chip box is located inside the rear end of the combination machine tool. The combination machine tool communicates with the inside of the chip box through a coolant drain port on one side. The inner wall of the chip box has two... Each side is fixedly equipped with a slide, and each of the two slides is slidably mounted on its upper exterior. The two supports are connected to a spring balancer via a lifting component at one end. The lower end of the spring balancer is provided with a mounting plate, and a magnetic suction plate is installed on the lower surface of the mounting plate. A V-shaped trough is horizontally installed inside the rear end of the chip box, and a screw conveyor is installed inside the V-shaped trough. An inclined scraper is fixedly installed on one side of the inner wall of the V-shaped trough. A slag discharge pipe is connected to one side of the inside of the chip box, and the slag discharge pipe is connected to one end of the V-shaped trough. A chip compression mechanism is connected to the other end of the slag discharge pipe.

[0007] The entire device achieves efficient separation of chips and coolant, automatic cleaning and compression of long chips, and intelligent recovery of coolant, effectively preventing blockage of the chip discharge channel and improving the continuous processing capability of the composite machine tool.

[0008] Furthermore, the lifting component includes a hydraulic cylinder, which is fixedly installed above one end of the bracket. A sleeve is fixedly installed on the telescopic end of the hydraulic cylinder. A rotating shaft is fixedly inserted inside the lower part of the sleeve. U-shaped seats are rotatably sleeved on both sides of the outside of the rotating shaft. The lower ends of the two U-shaped seats are fixedly connected to the upper surface of the mounting plate.

[0009] Furthermore, the spring balancer includes a connecting block, which is fixedly installed on one side of the bracket. A balance rod is connected to one side of the connecting block via a balance spring. The bottom of the balance rod is fixedly connected to the upper surface of the mounting plate and is located on the side opposite to the U-shaped seat.

[0010] Furthermore, guide wheels are installed on both sides of the mounting frame plate, and inclined plates are fixedly installed on the inner wall of the rear end of the chip box at positions corresponding to the two guide wheels. The two guide wheels and the two inclined plates are intermittently rolling. When the guide wheels roll on the outer surface of the inclined plates, the mounting frame plate drives the magnetic suction plate to tilt to one side, and the lower surface of the magnetic suction plate slides against one side of the inclined scraper. The slide rod and the lead screw are respectively set inside the two slides. One slide is fixedly connected to the slide rod, and the other slide is rotatably connected to the lead screw. The bracket located at the slide rod is slidably connected to the slide rod, and the bracket located at the lead screw is threadedly connected to the lead screw.

[0011] Furthermore, the debris compression mechanism includes a compression shell and a pouring pipe. One end of the pouring pipe is connected to the interior of the slag discharge pipe, and the end of the pouring pipe away from the slag discharge pipe is connected to the interior of the compression shell. The compression shell is located on one side of the chip discharge box. A second motor is fixedly installed on the top of the compression shell. A connecting shaft is fixedly installed on the output end of the second motor. A pusher is provided at the lower outer end of the connecting shaft, and a crusher is provided at the upper outer end of the connecting shaft.

[0012] Furthermore, the pushing component includes a scraper, which is fixedly installed on the lower end of the connecting shaft. The lower surface of the scraper slides against the bottom of the inner side of the compression shell, and a chip discharge port is installed on one side of the inner side of the compression shell.

[0013] Furthermore, the crushing component includes multiple wear-resistant crushing blades, which are symmetrically installed on the upper outer side of the connecting shaft in a vertical direction. A curved blade disc is fixedly sleeved on the outer side of the connecting shaft and near the lower end of the lower wear-resistant crushing blades. A material discharge channel is left between the curved blade disc and the compression shell. Inclined support rods are installed at equal intervals along the circumferential direction at the bottom of the curved blade disc. An extrusion wheel is rotatably installed on one side of the inside of the inclined support rod. The inner wall of the compression shell is inclined, and a gap is left between the extrusion wheel and the inclined inner wall.

[0014] Furthermore, the rear end of the chip removal box, near its lower edge, is beveled. An installation opening is formed within the beveled surface. A rectangular barrier is sealed and embedded within the installation opening. An L-shaped connecting pipe is installed inside the rectangular barrier and extends sealed to the outside of the rear end of the chip removal box. A suction pipe is connected between the two L-shaped connecting pipes at their closest points. A suction pump is connected at the end of the suction pipe furthest from the L-shaped connecting pipe. The suction pump is located on one side of the rear end of the chip removal box. A drain pipe is connected at the end of the suction pump furthest from the suction pipe. A liquid level sensor is installed inside the chip removal box.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention utilizes a magnetic chuck driven by a first motor via a lead screw, and links the first motor with the main drive motor of the combination machine tool through an external control system. This ensures precise synchronization between the reciprocating chip removal motion of the magnetic chuck and the machining cycle of the combination machine tool. This linkage drive method eliminates the need for a separate chip removal drive motor and its associated control system, simplifying the electrical structure and control logic of the machine tool and reducing equipment manufacturing costs. Furthermore, because the chip removal action is coordinated with the machining process in real time, chips are promptly attracted after generation, avoiding the chip accumulation and entanglement problems caused by the lag in traditional chip removal devices. This significantly improves chip removal efficiency and the continuous machining capability of the machine tool.

[0016] 2. This invention, by incorporating a movable magnetic chuck, can actively attract various ferromagnetic chips generated during the machining process of combined machine tools, especially long, spiral, or entangled chips formed during turning and milling of difficult-to-machine materials. This allows the long chips to be captured before entering the chip removal channel. After the magnetic chuck attracts the chips, the lifting mechanism, spring balance mechanism, guide wheel, and tilting plate work together to automatically tilt the magnetic chuck to one side during movement, causing its lower surface to slide tightly against the inclined scraper, thus thoroughly scraping the attracted chips into the V-shaped groove. This linked scraping structure requires no additional power or manual intervention, is reliable, and efficiently completes the transfer and collection of chips, solving the problem of automated cleaning and recycling of attracted chips.

[0017] 3. The chip compression mechanism of this invention can crush, cut, roll, and compress collected loose, tangled chips. Long chips are broken up by a wear-resistant crushing blade, and then compressed using the cooperation of a curved cutter head, extrusion rollers, and the inner wall of the compression shell. The chips are then discharged from the chip outlet, significantly reducing the accumulation volume of chips, decreasing their space occupation in the workshop, and reducing the costs of subsequent chip storage, transportation, and compression. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention from another angle; Figure 3 This is a schematic diagram of the overall structure of the present invention from other angles; Figure 4 This is a schematic diagram of the connection structure between the V-shaped groove and the screw conveyor of the present invention; Figure 5 This is a schematic diagram of the connection structure between the mounting plate and the magnetic suction plate of the present invention; Figure 6 This is a schematic diagram of the connection structure between the suction pump and the L-shaped connecting pipe of the present invention; Figure 7 This is a schematic diagram of a partial structural connection between the connecting block and the balance spring of the present invention; Figure 8 This is a schematic diagram of the connection structure between the screw conveyor and the slag discharge pipe of the present invention; Figure 9 This is a schematic diagram of the internal structure connection of the debris compression mechanism of the present invention; Figure 10 For the present invention Figure 5 Enlarged view of the structure at point A in the middle.

[0019] In the diagram: 1. Combination machine tool; 2. Coolant drain port; 3. Chip box; 4. Screw conveyor; 5. Compression shell; 6. First motor; 7. Hydraulic cylinder; 8. Suction pump; 9. L-shaped connecting pipe; 10. Support; 11. Slide; 12. Mounting plate; 13. Rectangular barrier fence; 14. Inclined plate; 15. U-shaped seat; 16. Magnetic suction plate; 17. Guide wheel; 18. Slide rod; 19. Connecting block; 20. Balance rod; 21. Balance spring; 22. Lead screw; 23. Inclined scraper; 24. Slag discharge pipe; 25. Extrusion wheel; 26. Second motor; 27. Crushing wear-resistant blade; 28. Pouring pipe; 29. ​​Curved cutter head; 30. Scraper; 31. Inclined support rod; 32. Chip discharge port; 33. Sleeve. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0022] like Figures 1-10The machine tool drive control device shown includes a combination machine tool 1, a chip box 3, a first motor 6, a slide bar 18, and a lead screw 22. The combination machine tool 1 has a main drive motor and a feed system driven by the main drive motor. The first motor 6 is electrically connected to the main drive motor through an external control system. The first motor 6 is located outside the rear end of the chip box 3 and is linked with the main drive motor of the combination machine tool 1. The output end of the first motor 6 is connected to one end of the lead screw 22 through a coupling to drive the lead screw 22 to rotate. When the main drive motor starts, the first motor 6 synchronously drives the lead screw 22 to rotate. In this way, the chip removal operation at the rear end can be carried out synchronously when the feed system is operating. The chip box 3 is located inside the rear end of the combination machine tool 1. The combination machine tool 1 communicates with the inside of the chip box 3 through a coolant drain port 2 on one side of its interior to discharge the mixture of chips and coolant generated during the machining process into the chip box 3. Slides are fixedly installed on both sides of the inner wall of the chip box 3. 11. Supports 10 are slidably mounted on the upper exterior of both carriages 11. The two supports 10 are connected to spring balancers via lifting components at one end. A mounting plate 12 is mounted on the lower end of the spring balancers. A magnetic plate 16 is mounted on the lower surface of the mounting plate 12. The magnetic plate 16 is preferably made of neodymium iron boron strong magnetic material and coated with a wear-resistant and corrosion-resistant coating to enhance durability and adsorption efficiency in the coolant environment. A V-shaped groove is horizontally installed inside the rear end of the chip box 3. The V-shaped groove uses two opposing... The device consists of an extension plate and a semi-circular tube. A screw conveyor 4 is installed inside the V-shaped trough. The screw conveyor 4 adopts the conventional auger screw conveyor device. An inclined scraper 23 is fixedly installed on one side of the inner wall of the V-shaped trough. The inclined scraper 23 is made of wear-resistant stainless steel and its edges are chamfered. It is used to scrape off the chips on the magnetic suction plate 16. A slag discharge pipe 24 is installed inside the chip box 3. The slag discharge pipe 24 is connected to one end of the V-shaped trough. The other end of the slag discharge pipe 24 is connected to a chip compression mechanism.

[0023] During operation, the chips and coolant mixture generated by the combined machine tool 1 enter the chip collection box 3 through the coolant drain port 2. Inside the chip collection box 3, brackets 10 are slidably mounted on the slides 11 on both sides. These brackets 10, via lifting components and spring balance components, drive the mounting plate 12 and magnetic suction plate 16 to move horizontally back and forth. During movement, the magnetic suction plate 16 actively attracts ferromagnetic chips from the mixture. When the magnetic suction plate 16 moves above the V-shaped trough, the lifting component lowers it, and then a tilting action causes the chips to be scraped off by the inclined scraper 23 into the V-shaped trough. The screw conveyor 4 inside the V-shaped trough pushes the chips to one end, which are then sent through the slag discharge pipe 24 to the chip compression mechanism for processing.

[0024] It should be noted that the angle between the inclined scraper 23 and the horizontal plane is preferably 45°, and the edge adopts a toothed structure to break up the long, entangled chips.

[0025] The combined machine tool 1 is preferably a turning and milling combined machining center. The feed system refers to the mechanical transmission assembly used to drive the tool or workpiece to make relative feed motion along a preset trajectory. Specifically, the feed system includes linear feed units in the X, Y, and Z axes and a directional feed unit for the tool spindle. Each feed unit includes a servo feed motor, a ball screw pair, a linear guide pair, and a corresponding reduction gear set. The main drive motor is the power source for providing the main cutting motion, i.e., the rotation of the tool or the workpiece. The main drive motor is connected to the power input end of the feed system through an internal transmission chain. While driving the tool to rotate and cut, it drives the feed system to achieve continuous feed machining of the workpiece according to the set feed amount. The above is the prior art and will not be described in detail.

[0026] The external control system is electrically connected to the main drive motor and the first motor 6. Specifically, when the main drive motor starts and drives the feed system to perform cutting feed action, the control system synchronously powers the first motor 6, causing the first motor 6 to drive the lead screw 22 to rotate, thereby driving the magnetic suction plate 16 to start horizontal reciprocating motion in the chip box 3 to perform synchronous chip removal and adsorption action. When the main drive motor stops or the feed system pauses feeding (such as when the tool retracts, changes tools, or during processing intervals), the control system correspondingly controls the first motor 6 to decelerate or stop, and during this interval, the hydraulic cylinder 7 and the inclined scraper 23 cooperate to complete the chip removal and reset action.

[0027] Through vertical linkage control, the adsorption, transfer, and scraping cycles of chip removal are synchronized in real time with the machining feed stroke of the feed system: when the feed system is performing an effective cutting stroke, the magnetic suction plate 16 is positioned above or in a shallow layer of the liquid surface to actively adsorb and intercept long chips; during the brief intervals when the feed system retracts or reverses direction, the magnetic suction plate 16 moves precisely to the rear V-shaped groove to complete chip scraping. This design avoids interference between chip removal and machining actions and ensures that chips are processed immediately after generation, effectively solving the problems of long chip entanglement and blockage caused by the lag in traditional chip removal devices.

[0028] The lifting component includes a hydraulic cylinder 7, which is fixedly installed above one end of the bracket 10. A sleeve 33 is fixedly installed on the telescopic end of the hydraulic cylinder 7. A rotating shaft is fixedly inserted inside the lower part of the sleeve 33. U-shaped seats 15 are rotatably sleeved on both sides of the outside of the rotating shaft. The lower ends of the two U-shaped seats 15 are fixedly connected to the upper surface of the mounting plate 12.

[0029] In this embodiment, when the magnetic suction plate 16 needs to be lowered to scrape chips, the hydraulic cylinder 7 extends, pushing the sleeve 33 and the rotating shaft downwards. The rotating shaft, through two U-shaped seats 15, drives the mounting plate 12 and the magnetic suction plate 16 to descend as a whole, so that the lower surface of the magnetic suction plate 16 approaches the inclined scraper 23. After scraping chips, the hydraulic cylinder 7 retracts, raising the magnetic suction plate 16 back to its initial height. Since the U-shaped seats 15 are rotatably sleeved with the rotating shaft, they provide rotational freedom for subsequent tilting actions. By setting the hydraulic cylinder 7, the mounting plate 12 and the magnetic suction plate 16 can be driven to rise and fall vertically, thereby controlling the depth to which the magnetic suction plate 16 can penetrate the coolant surface or leave the surface to perform the scraping action.

[0030] It should be noted that the hydraulic cylinder 7 can be equipped with a displacement sensor to achieve precise position control, specifically by connecting to an external control system.

[0031] The spring balancer includes a connecting block 19, which is fixedly installed on one side of the bracket 10. A balance rod 20 is connected to one side of the connecting block 19 via a balance tension spring 21. The bottom of the balance rod 20 is fixedly connected to the upper surface of the mounting plate 12 and is located on the side opposite to the U-shaped seat 15.

[0032] Guide wheels 17 are installed on both sides of the mounting plate 12. Inclined plates 14 are fixedly installed on the inner wall of the rear end of the chip box 3 at positions corresponding to the two guide wheels 17. The two guide wheels 17 and the two inclined plates 14 are intermittently rolling. When the guide wheels 17 roll on the outer surface of the inclined plates 14, the mounting plate 12 drives the magnetic suction plate 16 to tilt to one side, and the lower surface of the magnetic suction plate 16 slides against one side of the inclined scraper 23. The slide rod 18 and the lead screw 22 are respectively set inside the two slides 11. One slide 11 is fixedly connected to the slide rod 18, and the other slide 11 is rotatably connected to the lead screw 22. The bracket 10 located at the slide rod 18 is slidably connected to the slide rod 18, and the bracket 10 located at the lead screw 22 is threadedly connected to the lead screw 22.

[0033] In this embodiment, when the magnetic suction plate 16 moves horizontally and is not in contact with the inclined plate 14, the balance spring 21 applies a pre-tension force to the mounting plate 12 through the balance rod 20, keeping the magnetic suction plate 16 in a horizontal and stable state. When the guide wheel 17 contacts the inclined plate 14, the mounting plate 12 overturns against the tension of the balance spring 21, and the lower surface of the magnetic suction plate 16 comes into contact with the inclined scraper 23 and scrapes off debris. After leaving the inclined plate 14, the restoring force of the balance spring 21 pulls the mounting plate 12 back to horizontal automatically through the balance rod 20.

[0034] It should be noted that the balance spring 21 is made of high fatigue life steel wire spring and has a galvanized surface for rust prevention.

[0035] The first motor 6 drives the lead screw 22 to rotate, causing the threaded bracket 10 to move horizontally along the slide 11. The other bracket 10 slides synchronously on the slide rod 18. The two brackets 10 together drive the magnetic suction plate 16 to reciprocate horizontally. When the magnetic suction plate 16 moves to the rear end of the chip box 3, the guide wheels 17 on both sides of the mounting plate 12 roll into contact with the fixedly mounted inclined plate 14, forcing the mounting plate 12 to tilt to one side. At this time, the lower surface of the magnetic suction plate 16 slides against the inclined scraper 23, scraping off the attracted chips. When moving in the opposite direction, the guide wheels 17 disengage from the inclined plate 14, and the magnetic suction plate 16 automatically resets.

[0036] In this embodiment, the first motor 6 is a servo motor that can rotate in both directions, and the bracket 10 at the corresponding lead screw 22 has a threaded hole adapted to rotation or a pre-embedded hole is opened inside the bracket 10, and a threaded sleeve is installed inside the pre-embedded hole.

[0037] It should be noted that the tilt angle of the tilting plate 14 is preferably 15°-30° to ensure stable tilting.

[0038] The chip compression mechanism includes a compression shell 5 and a pouring pipe 28. One end of the pouring pipe 28 is connected to the inside of the slag discharge pipe 24, and the end of the pouring pipe 28 away from the slag discharge pipe 24 is connected to the inside of the compression shell 5. The compression shell 5 is located on one side of the chip discharge box 3. A second motor 26 is fixedly installed on the top of the compression shell 5. A connecting shaft is fixedly installed on the output end of the second motor 26. A pusher is provided at the lower end of the connecting shaft, and a crusher is provided at the upper end of the connecting shaft.

[0039] In this embodiment, the chips delivered through the slag discharge pipe 24 enter the compression shell 5 through the pouring pipe 28. The second motor 26 starts, driving the connecting shaft to rotate. The crushing component at the upper end of the connecting shaft breaks and crushes the long chips at high speed, and the pushing component at the lower end of the connecting shaft pushes the crushed chips toward the chip discharge port 32. The compression shell 5 is located on one side of the chip discharge box 3, which facilitates the centralized compression and discharge of chips.

[0040] It should be noted that the inner wall of the compression shell 5 is hardened, which has good wear resistance. This process is quite common and will not be described in detail.

[0041] The material pusher includes a scraper 30, which is fixedly installed on the lower end of the connecting shaft. The lower surface of the scraper 30 slides against the bottom of the inner side of the compression shell 5. A chip discharge port 32 is installed inside the compression shell 5.

[0042] In this embodiment, after the chips fall to the bottom of the compression shell 5, the second motor 26 drives the connecting shaft to rotate, causing the scraper 30 to slide continuously inside the bottom of the compression shell 5. The scraper 30 forcibly pushes the compressed chips towards the chip discharge port 32 on one side of the compression shell 5, achieving continuous discharge. The tight fit between the lower surface of the scraper 30 and the bottom of the shell ensures that no chips remain.

[0043] It should be noted that the dimensions of the compression shell 5 and the chip discharge port 32 are based on the actual machine tool dimensions and coolant discharge volume, and the dimensions vary for different machine models.

[0044] The crushing component includes multiple wear-resistant crushing blades 27, which are symmetrically installed on the upper part of the connecting shaft in a vertical direction. A curved blade disc 29 is fixedly sleeved on the lower end of the wear-resistant crushing blades 27 near the lower part of the connecting shaft. A material discharge channel is left between the curved blade disc 29 and the compression shell 5. Inclined support rods 31 are installed at equal intervals along the circumference at the bottom of the curved blade disc 29. An extrusion wheel 25 is rotatably installed on one side of the inclined support rod 31. The inner wall of the compression shell 5 is set with an incline, and a gap is left between the extrusion wheel 25 and the inclined inner wall.

[0045] In this embodiment, long chips are first broken and initially crushed into smaller segments by the high-speed rotating wear-resistant crushing blade 27, and then fall through the material feeding channel to below the curved cutter disc 29. As the curved cutter disc 29 rotates, the inclined support rod 31 drives the extrusion roller 25 to roll along the inner wall of the inclined cut surface of the compression shell 5, crushing the chips. The wear-resistant crushing blade 27 is made of cemented carbide, and the curved cutter disc 29 and the extrusion roller 25 undergo surface hardening treatment to improve wear resistance.

[0046] The chip discharge box 3 has a beveled rear end near the lower edge, with an installation port inside. A rectangular barrier 13 is sealed inside the installation port. An L-shaped connecting pipe 9 is installed inside the rectangular barrier 13. The L-shaped connecting pipe 9 extends to the outside of the rear end of the chip discharge box 3. A suction pipe is installed between the two L-shaped connecting pipes 9 that are close to each other. A suction pump 8 is installed at the end of the suction pipe away from the L-shaped connecting pipe 9. The suction pump 8 is located on one side of the rear end of the chip discharge box 3. A drain pipe is installed at the end of the suction pump 8 away from the suction pipe. A liquid level sensor is installed inside the chip discharge box 3.

[0047] In this embodiment, the coolant at the bottom of the chip box 3 is collected at the mounting port via an inclined surface, and undergoes preliminary filtration through the rectangular barrier 13 to intercept small particles. The filtered coolant then passes sequentially through the rectangular barrier 13, the L-shaped connecting pipe 9, and the suction pipe into the suction pump 8. A liquid level sensor monitors the liquid level in the chip box 3 in real time. When the liquid level is higher than the set upper limit, the suction pump 8 automatically starts, sending the coolant back to the coolant circulation system of the combined machine tool 1 through the drain pipe, or, as needed, connecting to an external filtration device for further processing of the collected coolant. When the liquid level is lower than the lower limit, the suction pump 8 stops to prevent idling.

[0048] It should be noted that the grid spacing of the rectangular barrier 13 is preferably 1-2mm, which can intercept most of the small particles and prevent them from entering the circulation pipeline. The L-shaped connecting pipe 9 is made of stainless steel to prevent corrosion. The suction pump 8 is a corrosion-resistant centrifugal pump that automatically starts and stops according to the liquid level sensor signal, sending the filtered coolant back to the coolant circulation system of the combined machine tool for recycling.

[0049] In summary, when the guide wheel 17 contacts the inclined plate 14 simultaneously, the hydraulic cylinder 7 can control the degree of contact between the magnetic suction plate 16 and the inclined scraper 23 according to the scraping requirements. The first motor 6, the second motor 26, the hydraulic cylinder 7, and the suction pump 8 are connected to an external control system, which is preferably a PLC central controller with a programming module.

[0050] This device uses a PLC central controller for centralized intelligent control. The control logic is as follows: when the liquid level is higher than the upper limit, the suction pump 8 will start automatically, and when the liquid level is lower than the lower limit, it will stop automatically. The first motor 6 drives the magnetic plate 16 to move back and forth, and performs a scraping action once after each round trip. The hydraulic cylinder 7 extends before the guide wheel 17 contacts the inclined plate 14, causing the magnetic suction plate 16 to descend to the chip scraping height; After the tilting and scraping is completed, the hydraulic cylinder 7 retracts after a delay, and the magnetic suction plate 16 resets. The second motor 26 starts synchronously with the screw conveyor 4. When the chip conveyor starts, the compression mechanism works synchronously. When the machine stops, the internal chips are emptied. The system features overload protection, material blockage alarm, and emergency stop interlock functions.

[0051] Working principle: After the combined machine tool 1 starts machining, the coolant and chips, including long strips of shredded chips and fine particles, form a solid-liquid two-phase mixture that flows through the coolant drain port 2 into the chip collection box 3. At this time, the liquid level sensor inside the chip collection box 3 monitors the liquid level in real time and transmits the signal to the control system. The magnetic suction plate 16 is in a horizontal position, located inside the chip collection box 3 at the top, and is not yet immersed in the liquid surface.

[0052] The control system starts the first motor 6 according to a preset timing sequence or liquid level signal. The first motor 6 drives the lead screw 22 to rotate, which in turn drives the threaded bracket 10 to move horizontally along the slide 11. The bracket 10 on the other side slides synchronously along the slide bar 18. The two brackets 10 together drive the lifting component, the spring balance component and the mounting plate 12 to move horizontally, so that the magnetic suction plate 16 reciprocates above the inside of the chip box 3, actively adsorbing ferromagnetic chips in the coolant, especially for spiral and entangled long chips to achieve early capture. When the magnetic suction plate 16 completes adsorption and moves to the upper rear end of the chip box 3, close to the position of the corresponding V-shaped groove and the inclined scraper 23, the control system sends a signal, the hydraulic cylinder 7 extends, and pushes the sleeve 33 and the rotating shaft to move downward. The rotating shaft drives the mounting plate 12 and the magnetic suction plate 16 to descend as a whole via the U-shaped seat 15, so that the lower surface of the magnetic suction plate 16 approaches and lightly touches the upper edge of the inclined scraper 23. As the magnetic suction plate 16 continues to move horizontally, the guide wheels 17 on both sides of the mounting plate 12 gradually contact and roll to the outer surface of the inclined plate 14. Since the inclined plate 14 is fixed, the guide wheels 17 rise along the outer surface, forcing the mounting plate 12 to overcome the tension of the balance spring 21 and tilt to one side around the rotating shaft inside the U-shaped seat 15. At this time, the lower surface of the magnetic suction plate 16 slides tightly against one side of the inclined scraper 23, scraping off all the chips adsorbed on the lower surface of the magnetic suction plate 16 and falling into the V-shaped groove below. The chips falling into the V-shaped groove are pushed by the screw conveyor 4 and move along the V-shaped groove to one end, entering the compression shell 5 of the chip compression mechanism through the slag discharge pipe 24 and the pouring pipe 28. The second motor 26 starts, driving the connecting shaft to rotate, which in turn drives the crushing and wear-resistant blades 27 to break and crush long chips at high speed. The chips continue to fall above the curved cutter head 29, and then enter the lower part of the compression shell 5 through the material discharge channel. As the curved cutter head 29 rotates, the inclined support rod 31 drives the extrusion wheel 25 to roll along the inclined inner wall of the compression shell 5, crushing and compressing the chips. Finally, the compressed chips are pushed to the chip discharge port 32 by the scraper plate 30 and discharged.

[0053] During the chip compression process, the first motor 6 located inside the chip discharge box 3 rotates in the opposite direction, driving the bracket 10 and the magnetic suction plate 16 to move horizontally in the opposite direction. The guide wheel 17 leaves the inclined plate 14, and under the restoring force of the balance tension spring 21, the mounting plate 12 and the magnetic suction plate 16 automatically return to a horizontal position. Then, the hydraulic cylinder 7 retracts, raising the magnetic suction plate 16 to its initial height, ready to enter the next adsorption cycle, and then repeating the above steps.

[0054] While the chips are being separated, the coolant inside the chip discharge box 3 is collected via an inclined surface to the rectangular baffle 13 at the lower mounting opening, initially intercepting fine particles. The coolant then passes sequentially through the rectangular baffle 13, the L-shaped connecting pipe 9, and the suction pipe into the suction pump 8. The suction pump 8 automatically starts and stops based on the signal from the liquid level sensor, sending the filtered coolant back to the coolant circulation system of the combined machine tool 1 via the drain pipe, thus achieving automatic recovery and recycling of the coolant.

[0055] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A machine tool drive control device with chip removal and coolant recovery functions, comprising a combination machine tool (1), a chip box (3), a first motor (6), a slide bar (18), and a lead screw (22), characterized in that, The combined machine tool (1) has a main drive motor and a feed system driven by the main drive motor. The first motor (6) is electrically connected to the main drive motor through an external control system. The first motor (6) is located outside the rear end of the chip box (3). The chip box (3) is located inside the rear end of the combined machine tool (1). The combined machine tool (1) communicates with the inside of the chip box (3) through a coolant drain port (2) opened on one side of the inside. Slides (11) are fixedly installed on both sides of the inner wall of the chip box (3). Supports (10) are slidably installed on the upper outside of the two slides (11). 10) A spring balancer is connected to a lifting component set at one end. The lower end of the spring balancer is provided with a mounting plate (12). A magnetic suction plate (16) is installed on the lower surface of the mounting plate (12). A V-shaped trough is installed horizontally inside the rear end of the chip box (3). A screw conveyor (4) is set inside the V-shaped trough. An inclined scraper (23) is fixedly installed on one side of the inner wall of the V-shaped trough. A slag discharge pipe (24) is connected to one side of the inside of the chip box (3). The slag discharge pipe (24) is connected to one end of the V-shaped trough. A chip compression mechanism is connected to the other end of the slag discharge pipe (24).

2. The machine tool drive control device with chip removal and coolant recovery functions according to claim 1, characterized in that, The lifting component includes a hydraulic cylinder (7), which is fixedly installed above one end of the bracket (10). A sleeve (33) is fixedly installed on the telescopic end of the hydraulic cylinder (7). A rotating shaft is fixedly inserted inside the lower part of the sleeve (33). U-shaped seats (15) are rotatably sleeved on both sides of the outside of the rotating shaft. The lower ends of the two U-shaped seats (15) are fixedly connected to the upper surface of the mounting plate (12).

3. A machine tool drive control device with chip removal and coolant recovery functions according to claim 2, characterized in that, The spring balance component includes a connecting block (19), which is fixedly installed on one side of the bracket (10). A balance rod (20) is connected to one side of the connecting block (19) via a balance tension spring (21). The bottom of the balance rod (20) is fixedly connected to the upper surface of the mounting plate (12) and is located on the side opposite to the U-shaped seat (15).

4. A machine tool drive control device with chip removal and coolant recovery functions according to claim 3, characterized in that, Guide wheels (17) are installed on both sides of the mounting plate (12). Inclined plates (14) are fixedly installed on the inner wall of the rear end of the chip box (3) at positions corresponding to the two guide wheels (17). The two guide wheels (17) and the two inclined plates (14) are intermittently connected by rolling. When the guide wheels (17) roll on the outer surface of the inclined plates (14), the mounting plate (12) drives the magnetic suction plate (16) to tilt to one side, and the lower surface of the magnetic suction plate (16) is connected to the inclined plate. The scraper (23) slides against one side. The slide rod (18) and the lead screw (22) are respectively set inside the two slides (11). One of the slides (11) is fixedly connected to the slide rod (18), and the other slide (11) is rotatably connected to the lead screw (22). The bracket (10) located at the slide rod (18) is slidably connected to the slide rod (18), and the bracket (10) located at the lead screw (22) is threadedly connected to the lead screw (22).

5. A machine tool drive control device with chip removal and coolant recovery functions according to claim 1, characterized in that, The debris compression mechanism includes a compression shell (5) and a pouring pipe (28). One end of the pouring pipe (28) is connected to the inside of the slag discharge pipe (24), and the end of the pouring pipe (28) away from the slag discharge pipe (24) is connected to the inside of the compression shell (5). The compression shell (5) is located on one side of the chip discharge box (3). A second motor (26) is fixedly installed on the top of the compression shell (5). A connecting shaft is fixedly installed on the output end of the second motor (26). A pusher is provided at the lower end of the connecting shaft, and a crusher is provided at the upper end of the connecting shaft.

6. A machine tool drive control device with chip removal and coolant recovery functions according to claim 5, characterized in that, The pusher includes a scraper (30), which is fixedly installed on the lower end of the connecting shaft. The lower surface of the scraper (30) slides against the bottom of the inner side of the compression shell (5). A chip discharge port (32) is installed on one side of the inner side of the compression shell (5).

7. A machine tool drive control device with chip removal and coolant recovery functions according to claim 5, characterized in that, The crushing component includes multiple crushing wear-resistant blades (27), which are symmetrically installed on the upper outer side of the connecting shaft in the vertical direction. A curved blade disc (29) is fixedly sleeved on the lower end of the crushing wear-resistant blade (27) on the outside of the connecting shaft. A material drop channel is left between the curved blade disc (29) and the compression shell (5). Inclined support rods (31) are installed at equal intervals along the circumferential direction at the bottom of the curved blade disc (29). An extrusion wheel (25) is rotatably installed on one side inside the inclined support rod (31). The inner wall of the compression shell (5) is inclined, and a gap is left between the extrusion wheel (25) and the inclined inner wall.

8. A machine tool drive control device with chip removal and coolant recovery functions according to claim 1, characterized in that, The chip removal box (3) has a beveled surface at its rear end and near the lower edge. An installation port is provided inside the beveled surface. A rectangular barrier (13) is sealed and embedded inside the installation port. An L-shaped connecting pipe (9) is installed inside the rectangular barrier (13). The L-shaped connecting pipe (9) extends sealed to the outside of the rear end of the chip removal box (3). A suction pipe is installed between the two L-shaped connecting pipes (9) that are close to each other. A suction pump (8) is installed at the end of the suction pipe that is away from the L-shaped connecting pipe (9). The suction pump (8) is located on one side of the rear end of the chip removal box (3). A drain pipe is installed at the end of the suction pump (8) that is away from the suction pipe. A liquid level sensor is installed inside the chip removal box (3).

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