A chip removal device for a step-by-step numerically controlled machine tool
Patent Information
- Application Number
- CN202611484436.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-09-22
- Publication Date
- 2026-10-27
AI Technical Summary
[0003]然而，现有数控机床的排屑装置存在显著缺陷：长卷切屑韧性强、形态细长，掉落堆积后极易缠绕在推杆杆身、勾挂在止退结构上，随着推杆持续往复步进，缠绕丝屑不断堆叠增厚，不仅增大推杆运行负载、造成液压系统过载憋压，还会挤占槽体有效过料空间，诱发切屑滞留卡堵，因此，设计一种防缠绕的步进式数控机床排屑装置是很有必要的
[0014]与现有技术相比，本发明所达到的有益效果是：本发明，通过设置有清理齿，能够对缠绕在推杆、止退倒刺上的切屑进行剥离、梳理与刮除；通过设置有可以翻转的挡料板，能够在推杆往复形成进行姿态切换，从而有效抑制碎屑向后回窜，提升物料单向输送的效率；通过设置有清理刮板机构，在清理齿缝隙卡入碎屑时，能够利用清理刮板机构反复对清理齿内卡入的碎屑进行剐蹭、顶推，从而挤出清理齿内部卡入的碎屑。
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Figure CN122975436A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of CNC machine tool technology, specifically to a stepper CNC machine tool chip removal device. Background Technology
[0002] The stepper CNC machine tool chip conveyor is an automated conveying device installed at the bottom of the CNC machine tool to receive the cutting and unloading material. It actively relies on hydraulic components to drive the push rod and push block to perform reciprocating linear motion. With the help of the anti-backward structure set in the tank, it realizes the stepper conveying function of forward feeding and return locking. It can continuously transfer various types of chips generated during processing from the machine tool unloading area to the chip collection box, replacing manual chip cleaning, ensuring uninterrupted continuous cutting operation of CNC machine tools, and is an indispensable auxiliary component of CNC machining production lines.
[0003] However, existing chip removal devices for CNC machine tools have significant drawbacks: long coiled chips are tough and slender, and after falling and accumulating, they are very easy to get tangled on the push rod body and hooked on the anti-reverse structure. As the push rod continues to reciprocate, the tangled chips accumulate and thicken, which not only increases the operating load of the push rod and causes the hydraulic system to overload and become pressurized, but also occupies the effective material passage space of the groove, inducing chip retention and blockage. Therefore, it is necessary to design an anti-tangling stepping CNC machine tool chip removal device. Summary of the Invention
[0004] The purpose of this invention is to provide a chip removal device for stepper CNC machine tools to solve the problems mentioned in the background art.
[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a stepper CNC machine tool chip removal device, including a chip removal groove, a frame, cleaning teeth, and baffles. A CNC machine tool is arranged above the chip removal groove, the frame is arranged above the chip removal groove, the cleaning teeth are arranged between the frame and the chip removal groove, two sets of baffles are respectively arranged on both sides inside the chip removal groove, a limit plate is arranged on one side of the chip removal groove, and a discharge port is arranged on the side of the chip removal groove away from the limit plate. Linear modules are fixedly connected to both sides of the chip removal groove symmetrically along the axis. The frame is in an inverted U-shape. The two ends of the frame are fixedly connected to the sliders of the two sets of linear modules. By driving the servo motor to operate, the lead screw is driven to rotate, thereby driving the slider to move along the slide rail. Three sets of cleaning scrapers are arranged on one side of the cleaning teeth.
[0006] Preferably, the chip removal trough is formed by a bottom plate, an end plate, and two sets of side walls, with the side walls and bottom plate sloping downwards at the connection, forming a feeding channel that is wider at the top and narrower at the bottom. The inclined surface of the side walls forms a guide slope, thereby reducing the accumulation problem at the right-angle connection. Movable troughs are provided on both sides of the end of the chip removal trough away from the discharge port. The axis of the movable trough is parallel to the axis of the chip removal trough. The shape of the limiting plate matches the shape of the chip removal trough. Small wheels are connected to the bearings at both ends of the limiting plate. The small wheels are slidably connected to the inside of the movable trough. A hydraulic cylinder is provided at the end of the chip removal trough away from the discharge port. The piston rod of the hydraulic cylinder passes through the end plate and is fixedly connected to the limiting plate. The height of the end plate is less than the height of the limiting plate.
[0007] Preferably, multiple sets of anti-reverse barbs are fixedly connected to both sides of the inside of the chip discharge trough. The multiple sets of anti-reverse barbs are arranged at intervals along the axis of the material conveying direction of the chip discharge trough. The tip of each set of anti-reverse barbs is inclined towards the discharge port. A push rod is provided inside the chip discharge trough. Multiple sets of push blocks are fixedly connected to the outside of the push rod along its own axis. Each set of push blocks has a triangular block structure and the tip is facing the direction of the limiting plate. The upper surface of the push block is inclined and the inclined direction is towards the end away from the discharge port of the chip discharge trough. A guide strip is fixedly connected to the center of the bottom of the chip discharge trough. The cross-section of the guide strip is rectangular. The bottom of each set of push blocks is slidably connected to the guide strip and the bottom of the chip discharge trough, respectively.
[0008] Preferably, multiple sets of crossbars are fixedly connected above the chip removal groove, and the axis of the crossbars is perpendicular to the axis of the chip removal groove. The crossbars are evenly distributed along the axis of the chip removal groove. An industrial camera is fixedly connected above the crossbars to detect the chip removal status. A feed inlet and a bracket are fixedly connected above the end of the chip removal groove near the hydraulic cylinder. The feed inlet corresponds to the chip removal port of the CNC machine tool. A vision sensor is fixedly connected above the bracket to detect the shape of the material during the dropping process.
[0009] Preferably, cylinder 1 is fixedly connected to both sides of the chip removal groove symmetrically along the axis. Each set of cylinder 1 is located above the linear module 1. The piston rod of each set of cylinder 1 is fixedly connected to bracket 2. The other end of bracket 2 is fixedly connected to motor 1. The output shaft of motor 1 passes through bracket 2 and is fixedly connected to a fixing rod. The fixing rod is fixedly connected to the center above the baffle plate. The two sets of baffle plates are staggered along the axis of the chip removal groove. The shape of one side of the baffle plate is adapted to the shape of the side wall of the chip removal groove. The other side of the baffle plate is provided with a clearance groove. The clearance groove is a parallelogram and passes through the baffle plate. The shape of the clearance groove is adapted to the shape between the two sets of vertically arranged anti-reverse barbs. When the width axis of the baffle plate is perpendicular to the axis of the chip removal groove, one side of the baffle plate abuts against the side wall of the groove, and the material can pass through the clearance groove.
[0010] Preferably, a second linear module is fixedly connected to the top of the frame. The structure of the second linear module is the same as that of the first linear module. A through groove is provided in the center of the top of the frame. The axis of the groove is parallel to the axis of the second linear module. A second cylinder is fixedly connected to the slider of the second linear module. The piston rod of the second cylinder passes through the groove. A rotary cylinder is fixedly connected to the piston rod of the second cylinder. The output arm of the rotary cylinder is fixedly connected to a base.
[0011] Preferably, the base is in the shape of a U-shape. A hinge lug 1 and a hinge lug 2 are fixedly connected to the bottom and one side of the base. The base is hinged inside the hinge lug 1. A motor 2 is fixedly connected to one side of the hinge lug 1. The output shaft of the motor 2 passes through the hinge lug 1 and is fixedly connected to the base 2. The side of the base 2 away from the hinge point is fixedly connected to the cleaning teeth.
[0012] Preferably, the cleaning tooth consists of two sets of short teeth and two sets of long teeth, which are spaced apart. The two sets of short teeth are located between the two sets of long teeth. Both the short teeth and the long teeth are L-shaped. The length of one end of the short teeth is equal to the length of one end of the long teeth, and the length of the other end of the short teeth is less than the length of the other end of the long teeth. The distance between the two sets of long teeth is adapted to the diameter of the push rod. One end face of the cleaning tooth is set with an inclined surface to facilitate hooking up the long, coiled chips.
[0013] Preferably, a base three is hinged inside the hinge ear two, and a motor three is fixedly connected to one side of the hinge ear two. The output shaft of the motor three passes through the hinge ear two and is fixedly connected to the base three. The base three is L-shaped, and three sets of cleaning scrapers are fixedly connected to the bottom of the base three. Each set of cleaning scrapers is C-shaped and arranged at intervals. The width of the cleaning scraper is equal to the spacing between the cleaning teeth and the two are corresponding in position. When large pieces of debris are stuck inside the cleaning teeth, the cleaning scraper can abut against the debris in the cleaning teeth, thereby squeezing the large pieces of debris out of the cleaning teeth.
[0014] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention, by providing cleaning teeth, can peel, comb and scrape off the chips wrapped around the push rod and the anti-reverse barbs; by providing a flip-up baffle plate, it can switch postures during the reciprocating motion of the push rod, thereby effectively suppressing the backward movement of chips and improving the efficiency of unidirectional material conveying; by providing a cleaning scraper mechanism, when chips are stuck in the gaps of the cleaning teeth, the cleaning scraper mechanism can be used to repeatedly scrape and push the chips stuck in the cleaning teeth, thereby squeezing out the chips stuck inside the cleaning teeth. Attached Figure Description
[0015] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the machine tool and chip removal device of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the left-side view structure; Figure 4 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 5 This is a top view of the chip removal groove structure of the present invention; Figure 6 This is a schematic diagram of the internal structure of the chip removal groove of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of point B in the middle; Figure 8 This is a schematic diagram of the frame, cleaning teeth, and cleaning scraper of the present invention; Figure 9 This is a schematic diagram of the cleaning teeth and cleaning scraper of the present invention from another angle; Figure 10 This is a diagram showing the advancing state of the toothed comb when cleaning clumps and chunks of chips according to the present invention. Figure 11 This is a diagram showing the return state of the toothed comb when cleaning clumps and chunks of chips according to the present invention. Figure 12 This is a schematic diagram of the cleaning teeth combing long, coiled chips according to the present invention; Figure 13 This is a schematic diagram illustrating the short and long teeth of the present invention for cleaning chips from the anti-reverse barbs; In the diagram: 1. Chip removal trough; 2. Frame; 3. Cleaning teeth; 4. Baffle plate; 5. Linear module one; 6. Cleaning scraper; 7. Anti-reverse barb; 8. Limiting plate; 9. Push rod; 10. Push block; 11. Guide bar; 12. Moving groove; 13. Small wheel; 14. Hydraulic cylinder; 15. Crossbar; 16. Feed inlet; 17. Support one; 18. Cylinder one; 19. Support two; 20. Motor one; 21. Passing groove; 22. Linear module two; 23. Slide groove; 24. Cylinder two; 25. Base one; 26. Hinge one; 27. Hinge two; 28. Base two; 29. Motor two; 30. Rotary cylinder; 31. Base three; 32. Short tooth; 33. Long tooth; 34. Motor three; 35. Vision sensor. Detailed Implementation
[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0017] Example 1: Please see Figure 1-13 This invention provides a stepper CNC machine tool chip removal device, including a chip removal groove 1, a frame 2, cleaning teeth 3, and baffle plates 4. A CNC machine tool is installed above the chip removal groove 1, the frame 2 is installed above the chip removal groove 1, the cleaning teeth 3 are installed between the frame 2 and the chip removal groove 1, two sets of baffle plates 4 are respectively installed on both sides inside the chip removal groove 1, a limit plate 8 is installed on one side of the chip removal groove 1, and a discharge port is installed on the side of the chip removal groove 1 away from the limit plate 8. Linear modules 5 are fixedly connected to both sides of the chip removal groove 1 symmetrically along the axis. The linear modules 5 are composed of servo motors, lead screws, slide rails, and sliders, etc., which are existing technologies and will not be described in detail. The frame 2 is in the shape of an inverted U. The two ends of the frame 2 are fixedly connected to the sliders of the two sets of linear modules 5 respectively. By driving the servo motor to operate, the lead screw is rotated, thereby driving the slider to move along the slide rail. Three sets of cleaning scrapers 6 are installed on one side of the cleaning teeth 3.
[0018] The chip discharge trough 1 is formed by a bottom plate, an end plate, and two sets of side walls. The connection between the side walls and the bottom plate is inclined from top to bottom, forming a feeding channel that is wider at the top and narrower at the bottom. The inclined surface of the side wall forms a guide slope, thereby reducing the problem of chip accumulation at the right-angle connection. The chip discharge trough 1 has movable troughs 12 on both sides of the end away from the discharge port. The axis of the movable trough 12 is parallel to the axis of the chip discharge trough 1. The shape of the limiting plate 8 matches the shape of the chip discharge trough 1. The two ends of the limiting plate 8 are connected to small wheels 13 by bearings. The small wheels 13 are slidably connected to the inside of the movable trough 12. A hydraulic cylinder 14 is provided at the end of the chip discharge trough 1 away from the discharge port. The piston rod of the hydraulic cylinder 14 passes through the end plate and is fixedly connected to the limiting plate 8. The height of the end plate is less than the height of the limiting plate 8.
[0019] Multiple sets of anti-reverse barbs 7 are fixedly connected to both sides inside the chip discharge trough 1. The anti-reverse barbs 7 are triangular block-shaped structures. The multiple sets of anti-reverse barbs 7 are arranged at intervals along the axis of the material conveying direction of the chip discharge trough 1. The tip of each set of anti-reverse barbs 7 is inclined towards the discharge port. A push rod 9 is provided inside the chip discharge trough 1. Multiple sets of push blocks 10 are fixedly connected to the outside of the push rod 9 along its own axis. Each set of push blocks 10 is triangular block-shaped with its tip facing the direction of the limiting plate 8. The upper surface of the push block 10 is inclined and the inclined direction is towards the end away from the discharge port of the chip discharge trough 1. A guide strip 11 is fixedly connected to the center of the bottom of the chip discharge trough 1. The cross-section of the guide strip 11 is rectangular. The bottom of each set of push blocks 10 is slidably connected to the guide strip 11 and the bottom of the chip discharge trough 1, respectively.
[0020] A plurality of sets of cross bars 15 are fixedly connected above the chip removal groove 1, the axis of the cross bars 15 is perpendicular to the axis of the chip removal groove 1, the cross bars 15 are evenly distributed along the axial direction of the chip removal groove 1, an industrial camera (not shown in the figure) is fixedly connected above the cross bars 15 for detecting the chip removal state, a feed port 16 and a first bracket 17 are fixedly connected above the end of the chip removal groove 1 close to the hydraulic cylinder 14, the upper part of the feed port 16 corresponds to the chip discharge port of the numerical control machine tool, and a vision sensor 35 is fixedly connected above the first bracket 17 for detecting the material form during blanking.
[0021] A first air cylinder 18 is fixedly connected to each of the two axially symmetrical sides of the chip removal groove 1, each set of the first air cylinders 18 is located above the first linear module 5, a piston rod of each set of the first air cylinders 18 is fixedly connected with a second bracket 19, the other end of the second bracket 19 is fixedly connected with a first motor 20, an output shaft of the first motor 20 penetrates through the second bracket 19 and is fixedly connected with a fixing rod, the fixing rod is fixedly connected with the center above the material baffle 4, the two sets of the material baffles 4 are arranged in a staggered manner along the axial direction of the chip removal groove 1, the shape of one side of the material baffle 4 is adapted to the shape of the groove side wall of the chip removal groove 1, the other side of the material baffle 4 is provided with an avoiding groove 21, the avoiding groove 21 is in a parallelogram shape and penetrates through the material baffle 4, the shape of the avoiding groove 21 is adapted to the shape between the two sets of vertically arranged anti-backward barbs 7, when the axis of the material baffle 4 in the width direction is perpendicular to the axis of the chip removal groove 1, one side of the material baffle 4 abuts against the groove side wall, and materials can pass through the avoiding groove 21.
[0022] A second linear module 22 is fixedly connected above the frame 2, the structure of the second linear module 22 is the same as that of the first linear module 5, a through chute 23 is opened in the center above the frame 2, the axis of the chute 23 is parallel to the axis of the second linear module 22, a sliding block of the second linear module 22 is fixedly connected with a second air cylinder 24, a piston rod of the second air cylinder 24 is arranged to pass through the inside of the chute 23, a piston rod of the second air cylinder 24 is fixedly connected with a rotary cylinder 30, the rotary cylinder 30 is composed of a cylinder body, a piston, an output arm and other structures, which is a prior art and will not be elaborated, and an output arm of the rotary cylinder 30 is fixedly connected with a first base 25.
[0023] The first base 25 is overall in a hollow square shape, a first hinge lug 26 and a second hinge lug 27 are fixedly connected to the lower part and one side of the first base 25 respectively, a second base 28 is hinged in the first hinge lug 26, a second motor 29 is fixedly connected to one side of the first hinge lug 26, an output shaft of the second motor 29 penetrates through the inside of the first hinge lug 26 and is fixedly connected with the second base 28, and the side of the second base 28 away from the hinge point is fixedly connected with the cleaning teeth 3.
[0024] The cleaning tooth 3 consists of two sets of short teeth 32 and two sets of long teeth 33, which are spaced apart. The two sets of short teeth 32 are located between the two sets of long teeth 33. Both the short teeth 32 and the long teeth 33 are L-shaped. The length of one end of the short teeth 32 is equal to the length of one end of the long teeth 33, and the length of the other end of the short teeth 32 is less than the length of the other end of the long teeth 33. The distance between the two sets of long teeth 33 is adapted to the diameter of the push rod 9. One end face of the cleaning tooth 3 is set with an angle to facilitate hooking up the long, coiled chips.
[0025] A base 31 is hinged inside the hinge lug 27. A motor 34 is fixedly connected to one side of the hinge lug 27. The output shaft of the motor 34 passes through the hinge lug 27 and is fixedly connected to the base 31. The base 31 is L-shaped. Three sets of cleaning scrapers 6 are fixedly connected to the bottom of the base 31. Each set of cleaning scrapers 6 is C-shaped and arranged at intervals. The width of the cleaning scraper 6 is equal to the spacing between the cleaning teeth 3 and the two are in corresponding positions. When large pieces of debris are stuck inside the cleaning teeth 3, the cleaning scraper 6 can abut against the debris in the cleaning teeth 3, thereby squeezing out the large pieces of debris from the cleaning teeth 3.
[0026] The work process is as follows: The chips generated by the CNC machine tool fall into the chip discharge groove 1 through the feed port 16. The vision sensor 35 identifies the shape and quantity of the material. When used for the first time, the device is triggered when the chips in the chip discharge groove 1 accumulate to half of the effective depth of the chip discharge groove 1. If the material is a long, coiled filament chip that is easy to entangle, the device is started when it accumulates to one-third of the chip discharge groove 1. In this embodiment, the slider of the linear module 22, along with the cylinder 24, is always located at the center of the width direction of the chip discharge groove 1, so that the cleaning teeth 3 and other components are all located directly above the axis of the push rod 9.
[0027] Hydraulic cylinder 14 drives piston rod to reciprocate and extend, thereby causing limit plate 8 to slide along moving groove 12 via small wheels 13 at both ends. Limit plate 8 simultaneously drives push rod 9 and push block 10 to move. Push block 10 slides along guide strip 11 at the bottom of chip discharge groove 1 to prevent push rod 9 from radially deviating. At the same time, motor 20 is started to drive baffle plate 4 to rotate, so that the overall posture of baffle plate 4 is consistent with the tilt direction of anti-reverse barb 7 and the clearance groove 21 faces the discharge port. Push block 10 pushes the chips in the groove forward. The chips squeeze the barb along the inclined surface of anti-reverse barb 7 and move forward by passing over the barb. The chips can pass smoothly through clearance groove 21 of baffle plate 4. Baffle plate 4 will not interfere with normal feeding. When the hydraulic cylinder 14 drives the push rod 9 and the push block 10 to return to their original position, the motor 20 drives the baffle plate 4 to rotate 180° as a whole, so that the solid plate surface of the baffle plate 4 without the clearance groove 21 faces the conveying channel. The baffle plate 4 and the anti-reverse barb 7 form a double blocking structure, which effectively blocks the material backflow channel and reduces the problem of chipping.
[0028] If the vision sensor 35 detects that the material falling from the feed inlet 16 is blocky or clump-shaped chips, the linear module 1 5 drives the frame 2 to move to the side above the feed inlet 16. The rotary cylinder 30 drives the base 25 to rotate as a whole, so that the cleaning scraper 6 is located on the side of the base 25 away from the feed inlet 16. The motor 29 drives the base 2 28 and the cleaning teeth 3, and the motor 34 drives the base 3 31 and the cleaning scraper 6 to adjust the angle so that the axis of the L-shaped long tooth 33 intersects the axis of the push rod 9. The long tooth 33 is set at an angle. The cylinder 24 drives the piston rod to extend downward, driving the cleaning teeth 3 and the cleaning scraper 6 to move downward as a whole, so that the cleaning teeth 3 extend into the conveying channel inside the chip discharge groove 1. The cleaning teeth 3 are located between two adjacent push blocks 10 and closer to the set of push blocks 10 away from the limit plate 8 (e.g., Figure 9 As shown), when the pusher block 10 moves forward, the long tooth 33 can contact the material between adjacent pusher blocks 10. The pusher block 10 pushes the material forward, thus causing relative movement between it and the long tooth 33, combing the stacked, skewed blocks or large clumps. The distance the pusher block 10 moves forward is matched with the combing length of the long tooth 33 to prevent the long tooth 33 from colliding with another set of pusher blocks 10. When the long tooth 33 is on one side of another set of pusher blocks 10, the drive cylinder 24 moves the cleaning tooth 3 upward, the motor 29 is started, and the drive base 28 is adjusted to adjust the angle so that the tip of the cleaning tooth 3 faces the feed inlet 16 (e.g., Figure 10 As shown), cylinder 24 drives the cleaning tooth 3 to move down to achieve reset and enter the return stroke of push block 10. During the return stroke, the back of the cleaning tooth 3 can further push the debris over push block 10.
[0029] If the vision sensor 35 detects that the falling material is long, coiled, filamentous chips, to prevent the long, coiled chips from tangling and forming large clumps that block the conveying channel, the linear module 5 is activated, driving the frame 2 to move to the side above the feed inlet 16. The rotary cylinder 30 drives the base 25 to rotate as a whole, so that the tips of the cleaning teeth 3 face the feed inlet 16. The motor 34 drives the base 31 and the cleaning scraper 6 to adjust their angles, and the drive cylinder 24 moves the cleaning teeth 3 downwards, so that the two sets of long teeth 33 are located on both sides of the push rod 9, and the short teeth 32 are located above the push rod 9. At the same time, before the device operates, the cleaning teeth 3 are close to the side of the push block 10 away from the limit plate 8 (e.g., Figure 11As shown, when push block 10 moves forward, long teeth 33 pierce and peel off the long coiled chips wrapped around push rod 9, while short teeth 32 separate and comb the scattered chips to prevent the long coiled chips from continuously tangling and accumulating into large clumps. When push block 10 moves forward to a preset distance, cylinder 24 is activated, moving cleaning teeth 3 upward away from push rod 9. Then, drive motor 29 finely adjusts the angle of cleaning teeth 3 so that the tips of cleaning teeth 3 face the axis of push rod 9, allowing the long coiled chips wrapped around cleaning teeth 3 to fall off. Then, drive motor 29 again. 29. The angle of the cleaning tooth 3 is restored, and the push block 10 makes a return motion. Further, during the return process, the linear module 5 is activated, which drives the frame 2 and the cleaning tooth 3 to move to the next group of adjacent push blocks 10. The above operation is repeated. After combing, the cleaning tooth 3 is moved to the next adjacent push block 10 in sequence and the above combing operation is repeated until each push block 10 interval is combed. Then, it returns to the starting point to continue combing, which prevents long coiled chips from getting tangled in the push rod 9 and improves the chip removal efficiency of the chip removal device.
[0030] Example 2: This embodiment is based on the operation of Embodiment 1, and addresses the faults that occur during the chip removal process to ensure the continuous and stable operation of the chip removal device.
[0031] Specifically, when the second cylinder 24 moves the cleaning tooth 3 upwards, and the industrial camera detects large or clump-shaped debris stuck between the short tooth 32 and the long tooth 33, the second cylinder 24 is immediately activated to move the cleaning tooth 3 upwards, moving it away from the chips inside the chip discharge trough 1 and the crossbar 15. The linear module 5 is then activated to drive the frame 2 to move to a side away from the feed inlet 16 to prevent collisions during cleaning. Finally, the rotary cylinder 30 is activated, carrying the entire cleaning tooth 3 and the cleaning scraper 6 outwards along the rotary cylinder 30. The arm axis rotates 180°, so that the tip of the cleaning tooth 3 faces the discharge port side. The motor 34 drives the base 31 to rotate around the hinge point, so that the three sets of C-shaped cleaning scrapers 6 correspond to the gaps between the teeth of the cleaning tooth 3. The motor 34 continues to operate, so that the cleaning scraper 6 and the gaps between the teeth of the cleaning tooth 3 are squeezed against each other. Through pushing and scraping, the debris stuck in the gaps between the teeth is squeezed out and falls into the conveying direction area of the chip discharge trough 1, preventing the squeezed debris from splashing to the outside of the chip discharge trough 1 or sticking to the edge of the feed port 16.
[0032] Furthermore, after the material stuck between the teeth is cleared, the industrial camera reports no stuck signal, the cleaning scraper 6 rotates to avoid it, the cleaning teeth 3 return to normal combing posture, and the chip removal process continues to run. If the material is not cleaned in a single scraping, the scraping action is triggered again. If the material is still stuck after three cleanings, an alarm is issued.
[0033] When the industrial camera detects that the amount of chips between adjacent push blocks 10 is greater than two-thirds of the amount of chips between other push blocks 10, and the chip type is long coil chips, it indicates that long coil filamentous chips are wrapped around the push rod 9. The hydraulic cylinder 14 immediately stops operating, and the linear module 1 5 moves the frame 2 above the wrapping position. The rotary cylinder 30 is activated, rotating the cleaning teeth 3 until the tip faces the direction of push block 10. The motors 29 and 34 are activated, adjusting the angle of the cleaning teeth 3 to make them tilted. The cleaning scraper 6 is adjusted to move away from the push rod 9. The linear module 1 5, carrying the cleaning teeth 3, moves from near the hydraulic cylinder 1. During the movement of push block 10 away from hydraulic cylinder 14, cylinder 24 gradually moves down until long teeth 33 are located on both sides of the outside of push rod 9. Then motor 29 adjusts the angle of cleaning teeth 3 to restore them to their original position, similar to scooping downwards. Cylinder 24 then moves cleaning teeth 3 upwards, peeling the hooked long curled chips off the push rod 9. Then motor 34 is started, causing cleaning scraper 6 to push the chips wrapped between the cleaning teeth 3 out of cleaning teeth 3. This operation is repeated twice. Then hydraulic cylinder 14 is started, causing push block 10 to continue to advance. The chip amount of the section with excessive chip amount is gradually even with other sections, and the adjustment is successful. Furthermore, in the process of cleaning the long rolled chips in the first embodiment, the second drive motor 29 finely adjusts the angle of the cleaning teeth 3 so that the long rolled chips on the cleaning teeth 3 fall off. If the long rolled chips are stuck in the gap between the teeth, they cannot fall off by their own weight. At this time, the third motor 34 is started so that the cleaning scraper 6 pushes the chips between the teeth to achieve unloading.
[0034] When the industrial camera detects a large amount of accumulated chips at the two anti-reverse barbs 7, it indicates that the long coil chips are hooked on the anti-reverse barbs 7. Hydraulic cylinder 14 stops operating, and linear module 1 5 moves the frame 2 above the winding position, driving rotary cylinder 30 to rotate the cleaning teeth 3 and cleaning scraper 6 until the tips of the cleaning teeth 3 face the root of the anti-reverse barb 7. Linear module 22 moves the entire unit towards the hooking position, and cylinder 24 moves the cleaning teeth 3 downwards. At this time, motor 34 drives the cleaning scraper 6 to rotate to avoid collision with the chip discharge groove 1, until the short teeth 32 are aligned with the root of the anti-reverse barb 7 and located above the anti-reverse barb 7 (e.g., ...). Figure 12 As shown), at this time, the anti-reverse barb 7 is located between the two sets of short teeth 32. The drive motor 29 makes the short teeth 32 rotate around the hinge point, thereby scraping off the long coiled chips hooked on the anti-reverse barb 7. After cleaning, the anti-reverse barb 7 returns to a non-entangled state, and the cleaning teeth 3 and the cleaning scraper 6 return to their original state to continue combing, thereby ensuring the chip removal efficiency of the chip removal device.
[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0036] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A chip removal device for a stepper CNC machine tool, comprising a chip removal groove (1), a frame (2), cleaning teeth (3), and a baffle plate (4), characterized in that, A CNC machine tool is installed above the chip removal groove (1). The frame (2) is installed above the chip removal groove (1). The cleaning teeth (3) are installed between the frame (2) and the chip removal groove (1). Two sets of baffles (4) are respectively installed on both sides inside the chip removal groove (1). A limit plate (8) is installed on one side of the chip removal groove (1). A discharge port is installed on the side of the chip removal groove (1) away from the limit plate (8). Linear modules (5) are fixedly connected to both sides of the chip removal groove (1) along the axis. The frame (2) is in the shape of an inverted U. The two ends of the frame (2) are fixedly connected to the sliders of the two sets of linear modules (5). Three sets of cleaning scrapers (6) are installed on one side of the cleaning teeth (3).
2. The chip removal device for a stepper CNC machine tool according to claim 1, characterized in that, The chip removal trough (1) is formed by a bottom plate, an end plate and two sets of side walls. The connection between the side walls and the bottom plate is inclined from top to bottom, forming a feeding channel that is wider at the top and narrower at the bottom. The inclined surface of the side wall forms a guide slope. The chip removal trough (1) has a moving trough (12) on both sides of the end away from the outlet. The axis of the moving trough (12) is parallel to the axis of the chip removal trough (1). The shape of the limiting plate (8) matches the shape of the chip removal trough (1). The two ends of the limiting plate (8) are connected to small wheels (13). The small wheels (13) are slidably connected to the moving trough (12). The end of the chip removal trough (1) away from the outlet is provided with a hydraulic cylinder (14). The piston rod of the hydraulic cylinder (14) passes through the end plate and is fixedly connected to the limiting plate (8). The height of the end plate is less than the height of the limiting plate (8).
3. A chip removal device for a stepper CNC machine tool according to claim 2, characterized in that, Multiple sets of anti-reverse barbs (7) are fixedly connected to both sides inside the chip discharge groove (1). The anti-reverse barbs (7) are triangular in shape. Multiple sets of anti-reverse barbs (7) are arranged at intervals along the axis of the material conveying direction of the chip discharge groove (1). The tip of each set of anti-reverse barbs (7) is inclined towards the discharge port. A push rod (9) is provided inside the chip discharge groove (1). Multiple sets of push blocks (10) are fixedly connected to the outside of the push rod (9) along its own axis. Each set of push blocks (10) is triangular in shape and the tip is facing the direction of the limiting plate (8). The upper surface of the push block (10) is inclined and the inclined direction is towards the end away from the discharge port of the chip discharge groove (1). A guide strip (11) is fixedly connected to the center of the bottom of the chip discharge groove (1). The cross-section of the guide strip (11) is rectangular. The bottom of each set of push blocks (10) is slidably connected to the guide strip (11) and the bottom of the chip discharge groove (1).
4. A chip removal device for a stepper CNC machine tool according to claim 3, characterized in that, Multiple sets of crossbars (15) are fixedly connected above the chip removal groove (1), and the axis of the crossbars (15) is perpendicular to the axis of the chip removal groove (1). The crossbars (15) are evenly distributed along the axis of the chip removal groove (1). An industrial camera is fixedly connected above the crossbars (15). A feed port (16) and a bracket (17) are fixedly connected above the end of the chip removal groove (1) near the hydraulic cylinder (14). The feed port (16) corresponds to the chip removal port of the CNC machine tool. A vision sensor (35) is fixedly connected above the bracket (17).
5. A chip removal device for a stepper CNC machine tool according to claim 4, characterized in that, The chip removal groove (1) is symmetrically connected to two cylinders (18) on both sides of the axis. Each set of cylinders (18) is located above the linear module (5). The piston rod of each set of cylinders (18) is fixedly connected to a bracket (19). The other end of the bracket (19) is fixedly connected to a motor (20). The output shaft of the motor (20) passes through the bracket (19) and is fixedly connected to a fixing rod. The fixing rod is fixedly connected to the center above the baffle plate (4). The two sets of baffle plates (4) are along the axis of the chip removal groove (1). The baffle plate (4) is arranged in a staggered direction. The shape of one side of the baffle plate (4) is adapted to the shape of the side wall of the chip discharge groove (1). The other side of the baffle plate (4) has a relief groove (21). The relief groove (21) is a parallelogram and passes through the baffle plate (4). The shape of the relief groove (21) is adapted to the shape between the two sets of anti-reverse barbs (7) set vertically. When the width axis of the baffle plate (4) is perpendicular to the axis of the chip discharge groove (1), one side of the baffle plate (4) abuts against the side wall of the groove, and the material can pass through the relief groove (21).
6. A chip removal device for a stepper CNC machine tool according to claim 5, characterized in that, Linear module two (22) is fixedly connected above the frame (2). The structure of linear module two (22) is the same as that of linear module one (5). A through groove (23) is opened in the center above the frame (2). The axis of the groove (23) is parallel to the axis of linear module two (22). The slider of linear module two (22) is fixedly connected to cylinder two (24). The piston rod of cylinder two (24) passes through the groove (23). The piston rod of cylinder two (24) is fixedly connected to rotary cylinder (30). The output arm of rotary cylinder (30) is fixedly connected to base one (25).
7. A chip removal device for a stepper CNC machine tool according to claim 6, characterized in that, The base one (25) is in the shape of a U-shape. The base one (25) is fixedly connected to the bottom and one side of the base one (25) respectively. The base two (28) is hinged inside the hinge one (26). The motor two (29) is fixedly connected to one side of the hinge one (26). The output shaft of the motor two (29) passes through the hinge one (26) and is fixedly connected to the base two (28). The side of the base two (28) away from the hinge point is fixedly connected to the cleaning tooth (3).
8. A chip removal device for a stepper CNC machine tool according to claim 7, characterized in that, The cleaning tooth (3) consists of two sets of short teeth (32) and two sets of long teeth (33) arranged at intervals. The two sets of short teeth (32) are located between the two sets of long teeth (33). The short teeth (32) and the long teeth (33) are both L-shaped. The length of one end of the short teeth (32) is equal to the length of one end of the long teeth (33), and the length of the other end of the short teeth (32) is less than the length of the other end of the long teeth (33). The distance between the two sets of long teeth (33) is adapted to the diameter of the push rod (9). One end face of the cleaning tooth (3) is set as an inclined plane.
9. A chip removal device for a stepper CNC machine tool according to claim 8, characterized in that, The hinge 2 (27) is hinged to the base 3 (31). The hinge 2 (27) is fixedly connected to one side of the motor 3 (34). The output shaft of the motor 3 (34) passes through the hinge 2 (27) and is fixedly connected to the base 3 (31). The base 3 (31) is L-shaped. The base 3 (31) is fixedly connected to three sets of cleaning scrapers (6) below. Each set of cleaning scrapers (6) is C-shaped and arranged at intervals. The width of the cleaning scraper (6) is equal to the distance between the cleaning teeth (3) and the two are in corresponding positions. When the cleaning teeth (3) are stuck with large pieces of debris, the cleaning scraper (6) can abut against the debris of the cleaning teeth (3).