CNC machining center stroke extension device suitable for PP plastic

Abstract

The utility model relates to the technical field of PP plastic CNC machining centers, in particular to a CNC machining center stroke expanding device suitable for PP plastics, which comprises a machine tool, guide rails are fixedly connected to two sides of the machine tool, sliders are slidably connected to the outer portions of the guide rails, and a machining frame is fixedly connected to the top of each slider. A lubricating assembly used for lubricating the guide rail is arranged on one side of the machining frame and comprises a fourth support installed on one side of the machine tool, the top of the fourth support is fixedly connected with an oil storage tank, the output end of the oil storage tank communicates with a connecting pipe, and the output end of the connecting pipe is fixedly connected with a fixing block. By means of the driving assembly and the lubricating assembly, the guide rail of the CNC machining center can be automatically lubricated, the trouble and cost of manual lubrication are reduced, meanwhile, the operation efficiency and the machining precision of equipment are improved, smooth movement of the guide rail is guaranteed, abrasion and heat generated by friction are reduced, and the service life of the guide rail is prolonged. And the service life of the equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of CNC machining centers for PP plastics, in particular to a stroke extension device for a CNC machining center suitable for PP plastics. Background Art

[0002] PP, short for polypropylene, is a polymer formed by the addition polymerization of propylene. It is a white waxy material with a transparent and light appearance. A CNC machining center for PP plastics is a numerically controlled machine tool specifically used for machining PP plastic materials. A CNC machining center, that is, a computer numerical control machining center, controls the movement of the machine tool through pre-programmed computer instructions to achieve precise machining of workpieces. For the machining of PP plastics, the CNC machining center has the characteristics of high efficiency, precision, and high automation.

[0003] In the prior art, such as the "stroke extension device for a CNC machining center" with the publication number of CN220481063U, it includes a CNC equipment workbench. A collection component is arranged below the CNC equipment workbench, and an extension component is arranged above the CNC equipment workbench. The collection component includes a collection box fixedly installed at the bottom of the CNC equipment workbench. Although this technology can collect the debris generated during the machining of workpieces by setting the collection component, it is the same as the traditional method: when a traditional CNC machining center processes a pipeline made of PP plastic, due to the long length of the pipeline, generally, the stroke of the machining center needs to be extended, that is, lengthened. As a result, the guide rail will be lengthened. The guide rail is a core component that guides the machining headstock (or called the tool head) to move precisely along a predetermined path. The increase in its length is crucial for the efficient machining of long pipelines. However, with the significant increase in the length of the guide rail, a series of potential problems are introduced, especially in terms of long-term operation and maintenance. The first and foremost is the lubrication problem: Since the long-distance guide rail needs to withstand frequent and high-precision movements during continuous machining, the lack of lubrication will increase the friction between the guide rail surface and the slider, which will further cause a series of adverse consequences such as increased wear, decreased precision, increased noise, and increased energy consumption. In the long run, these problems will not only shorten the service life of the machine tool but also affect the quality of the machined parts, increase production costs and maintenance difficulties. At the same time, when manual lubrication is used, due to the long distance of the guide rail, manual lubrication is not only time-consuming and laborious but also difficult to lubricate in a timely manner, which further exacerbates the problem of insufficient lubrication. Content of the Utility Model

[0004] In view of this, the purpose of the present utility model is to propose a stroke extension device for a CNC machining center suitable for PP plastics to solve the problem of the lack of a lubrication device in the existing CNC machining centers.

[0005] For the above purposes, the present utility model provides a CNC machining center stroke expansion device applicable to PP plastics, including a machine tool. Guide rails are fixedly connected to both sides of the machine tool. A slider is slidably connected to the outside of the guide rails. A machining frame is fixedly connected to the top of the slider. A lubrication assembly for lubricating the guide rails is arranged on one side of the machining frame. The lubrication assembly includes a fourth support installed on one side of the machine tool. A fuel tank is fixedly connected to the top of the fourth support. The output end of the fuel tank is communicated with a connecting pipe. The output end of the connecting pipe is fixedly connected to a fixing block. A guide plate is fixedly connected to the bottom of the fixing block. A positioning plate is slidably connected to the inside of the guide plate. A metering cylinder is fixedly connected to the bottom of one end of the positioning plate. A diversion mechanism for diverting lubricating oil is arranged at the bottom of one end of the guide plate. A driving assembly for driving the lubrication assembly to lubricate is arranged on one side of the metering cylinder. The driving assembly includes a track plate fixedly connected to the top of the fourth support. A sliding plate is slidably connected to the top of the track plate. A connecting plate is fixedly connected to one side of the sliding plate. The end of the connecting plate away from the sliding plate is fixedly connected to one side of the metering cylinder. A pull rope is fixedly connected to one end of the sliding plate. The end of the pull rope away from the sliding plate is wound around the outside of a rope winding roller. One side of the rope winding roller is rotationally connected to a third support through a shaft. An intermittent mechanism is arranged at the bottom of one side of the third support. The intermittent mechanism is used for intermittently driving the driving assembly to output lubricating oil.

[0006] Preferably, holes are formed inside the fixing block, and holes are formed inside one end of the positioning plate. The specifications and dimensions of the holes inside the fixing block and the holes inside the positioning plate are adapted to the specifications and dimensions of the top opening of the metering cylinder.

[0007] Preferably, an L-shaped plate is fixedly connected to the bottom of the guide plate. A second connecting block is fixedly connected to one side of the bottom of the metering cylinder. One end of the second connecting block is rotationally connected to a first connecting block through a shaft. The other end of the first connecting block is fixedly connected to a cover plate. The top of the cover plate is in contact with the bottom of the metering cylinder, and the bottom of the cover plate is in contact with the upper side of the bottom of the L-shaped plate.

[0008] Preferably, the diversion mechanism includes a diversion box fixedly connected to one side of the track plate. The length of the diversion box is equal to the length of the moving path of the metering cylinder, and the position of the diversion box is located on one side of the bottom of the L-shaped plate. Two diversion pipes are communicated with the bottom of the diversion box.

[0009] Preferably, a chute is formed in the bottom of the machine tool. A connecting plate is slidably connected to the inside of the chute. The outer parts of the two diversion pipes away from one end of the diversion box are respectively fixedly connected to one side of the connecting plate. The output ends of the two diversion pipes away from the diversion box are respectively connected to the inside of the two sliders. The positions of the openings of the output ends of the diversion pipes correspond to the positions of the tops of the guide rails.

[0010] Preferably, a return spring is fixedly connected to the interior of one end of the track plate, and one end of the return spring away from the interior of the track plate is fixedly connected to the bottom of the slide plate.

[0011] Preferably, one side of the rope collecting roller is fixedly connected to a driven wheel via a shaft penetrating the interior of the third bracket, and the bottom of the driven wheel is connected to a driving wheel via a belt drive.

[0012] Preferably, the intermittent mechanism includes a second triangular plate fixedly connected to one side of the driving wheel by an axis, the other side of the second triangular plate is fixedly connected to the first triangular plate, the three ends of the second triangular plate are respectively located between two of the three ends of the first triangular plate, the other side of the first triangular plate is rotatably connected to the second bracket by an axis, one side of the second bracket is rotatably connected to a linkage wheel by an axis, a side edge of the linkage wheel is provided with an alignment hole, one side of the linkage wheel is fixedly connected to a shifting post, the outer edge of the linkage wheel away from the alignment hole is clamped between two of the three ends of the first triangular plate, and when the shifting post drives the second triangular plate to rotate, one end of the first triangular plate is just clamped inside the alignment hole.

[0013] Preferably, one side of the linkage wheel is fixedly connected to a rotating wheel via an axis passing through the interior of the second bracket, the other side of the rotating wheel is rotatably connected to a ratchet via an axis, the side of the rotating wheel opposite to the ratchet is rotatably connected to a plurality of ratchet clips via an axis, the side of the rotating wheel opposite to the ratchet is annularly fixedly connected to a plurality of fixing columns, one side of the fixing column is fixedly connected to a first spring, one end of the first spring away from the fixing column is fixedly connected to one side of one end of the ratchet clip, and the other end of the ratchet clip engages with the outside of the ratchet.

[0014] Preferably, one side of the ratchet is fixedly connected to a gear via an axis, the external rotation of the axis connecting the ratchet and the gear is connected to a first bracket, one side of the processing frame is fixedly connected to a rack, the position of the rack corresponds to the position of the gear, and when the rack moves to the bottom of the gear, it drives the gear to rotate.

[0015] Beneficial effects of the utility model:

[0016] 1. Through the set drive assembly and lubrication assembly, the guide rail of the CNC machining center can be automatically lubricated, reducing the trouble and cost of manual lubrication, while improving the operating efficiency and machining accuracy of the equipment. At the same time, the drive assembly uses the movement of the machining frame itself to drive the drive assembly to drive the metering cylinder to input lubricating oil into the guide rail for lubrication, which not only achieves the effect of automatic lubrication, but also avoids the trouble of manual lubrication, thereby ensuring the smooth movement of the guide rail, reducing the wear and heat caused by friction, and extending the service life of the equipment.

[0017] 2. Through the provided diversion mechanism, the lubricating oil output from the metering cylinder can be automatically diverted onto the guide rail for lubrication, thus avoiding the problem of insufficient input of lubricating oil. By accurately delivering the lubricating oil to the top of the guide rail, not only the uniformity and comprehensiveness of the lubrication effect are ensured, but also the lubrication efficiency is improved, enabling all parts of the guide rail to be fully lubricated.

[0018] 3. Through the provided intermittent mechanism, through the mutual cooperation of components such as the first triangular plate, the second triangular plate, and the linkage wheel, intermittent driving of the driving component is achieved. This design not only saves energy but also avoids the problem of excessive lubricating oil caused by continuous lubrication, improves the accuracy and economy of lubrication, and at the same time enables the lubricating component to lubricate the guide rail for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only those of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 is a schematic three-dimensional structure diagram of the whole of the present invention;

[0021] Figure 2 is a schematic three-dimensional structure diagram of the lubricating component part of the present invention;

[0022] Figure 3 is for the present invention Figure 2 is an enlarged structure diagram at A in the present invention;

[0023] Figure 4 is a schematic connection structure diagram of the ratchet and the ratchet catch of the present invention;

[0024] Figure 5 is a schematic three-dimensional structure diagram of the intermittent mechanism part of the present invention;

[0025] Figure 6 is a schematic connection structure diagram of the diversion pipe and the slider of the present invention;

[0026] Figure 7 is a schematic connection structure diagram of the diversion pipe and the connecting plate of the present invention.

[0027] The marks in the figures are:

[0028] 1. Machine tool; 2. Machining frame; 3. Rack; 4. Gear; 5. First bracket; 6. Runner; 7. Ratchet wheel; 8. Ratchet catch; 9. Linking wheel; 10. Alignment hole; 11. Poking column; 12. First triangular plate; 13. Second triangular plate; 14. Second bracket; 15. Driving wheel; 16. Driven wheel; 17. Third bracket; 18. Rope winding roller; 19. Fourth bracket; 20. Pulling rope; 21. Track plate; 22. Return spring; 23. Slide plate; 24. Flow guide box; 25. Connecting plate; 26. L-shaped plate; 27. Measuring cylinder; 28. Guide plate; 29. Fixed block; 30. Connecting pipe; 31. Alignment plate; 32. Cover plate; 33. First connecting block; 34. Second connecting block; 35. Slide block; 36. Guide rail; 37. Chute; 38. Connecting plate; 39. Flow guide pipe; 40. Oil storage tank. Detailed implementation mode

[0029] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the following further elaborates on the present utility model in conjunction with specific embodiments.

[0030] It should be noted that unless otherwise defined, the technical terms or scientific terms used in the present utility model should have the ordinary meanings understood by those with ordinary skills in the field to which the present utility model belongs. The "first", "second" and similar terms used in the present utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative position relationships, and when the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0031] As in the present utility model Figures 1 to 7The shown CNC machining center stroke extension device applicable to PP plastics includes a machine tool 1. Guide rails 36 are fixedly connected to both sides of the machine tool 1. A slider 35 is slidably connected to the outside of the guide rails 36. A machining frame 2 is fixedly connected to the top of the slider 35. A lubrication assembly for lubricating the guide rails 36 is arranged on one side of the machining frame 2. The lubrication assembly includes a fourth bracket 19 installed on one side of the machine tool 1. An oil storage tank 40 is fixedly connected to the top of the fourth bracket 19. The output end of the oil storage tank 40 is communicated with a connecting pipe 30. The output end of the connecting pipe 30 is fixedly connected to a fixing block 29. A guide plate 28 is fixedly connected to the bottom of the fixing block 29. A positioning plate 31 is slidably connected to the inside of the guide plate 28. A metering cylinder 27 is fixedly connected to the bottom of one end of the positioning plate 31. A diversion mechanism for diverting lubricating oil is arranged at the bottom of one end of the guide plate 28. A driving assembly for driving the lubrication assembly to lubricate is arranged on one side of the metering cylinder 27. The driving assembly includes an orbital plate 21 fixedly connected to the top of the fourth bracket 19. A slide plate 23 is slidably connected to the top of the orbital plate 21. A connecting plate 25 is fixedly connected to one side of the slide plate 23. The end of the connecting plate 25 away from the slide plate 23 is fixedly connected to one side of the metering cylinder 27. A pull rope 20 is fixedly connected to one end of the slide plate 23. The end of the pull rope 20 away from the slide plate 23 is wound around the outside of a rope take-up roller 18. One side of the rope take-up roller 18 is rotationally connected to a third bracket 17 through a shaft. An intermittent mechanism is arranged at the bottom of one side of the third bracket 17. The intermittent mechanism is used to intermittently drive the driving assembly to output lubricating oil;

[0032] By setting the driving assembly and the lubrication assembly, the guide rails 36 of the CNC machining center can be automatically lubricated, reducing the trouble and cost of manual lubrication. At the same time, the operation efficiency and machining accuracy of the equipment are improved. At the same time, through the driving assembly, the movement of the machining frame 2 itself is used to drive the driving assembly to drive the metering cylinder 27 to input lubricating oil onto the guide rails 36 for lubrication. This not only achieves the effect of automatic lubrication but also avoids the trouble of manual lubrication, thereby ensuring the smooth movement of the guide rails 36, reducing the wear and heat generated by friction, and extending the service life of the equipment.

[0033] As Figures 1 to 7 shown, holes are opened in the fixing block 29, and holes are opened in the inside of one end of the positioning plate 31. The specification dimensions of the holes in the fixing block 29 and the specification dimensions of the holes in the positioning plate 31 are adapted to the specification dimensions of the top opening of the metering cylinder 27. An L-shaped plate 26 is fixedly connected to the bottom of the guide plate 28. A second connecting block 34 is fixedly connected to one side of the bottom of the metering cylinder 27. One end of the second connecting block 34 is rotationally connected to a first connecting block 33 through a shaft. The other end of the first connecting block 33 is fixedly connected to a cover plate 32. The top of the cover plate 32 is in contact with the bottom of the metering cylinder 27, and the bottom of the cover plate 32 is in contact with the upper side of the bottom of the L-shaped plate 26;

[0034] Through the provided cover plate 32, alignment plate 31, and L-shaped plate 26, during lubrication, first, the lubricating oil inside the oil storage tank 40 will be input into the interior of the metering cylinder 27 through the connecting pipe 30 to be filled up. At this time, when the driving assembly drives the metering cylinder 27 to move, the bottom of the cover plate 32 will move away from the bottom of the L-shaped plate 26. Then, due to the extrusion of the lubricating oil, the lubricating oil inside the metering cylinder 27 will push open the cover plate 32, causing the lubricating oil to flow into the interior of the diversion box 24. At the same time, when the metering cylinder 27 moves, one end of the hole inside the alignment plate 31 will move away from the bottom of the fixed block 29, and the top of the other end of the alignment plate 31 will move to the bottom of the fixed block 29, prompting the other end of the alignment plate 31 to block the opening at the bottom of the fixed block 29, thus avoiding the problem of the lubricating oil flowing out inside the connecting pipe 30. After that, the output lubricating oil is input onto the guide rail 36 through the diversion mechanism. At the same time, by providing the metering cylinder 27, the output lubricating oil can be quantified, thereby avoiding the problem of too much or too little lubricating oil.

[0035] As Figure 1 , Figure 2 , Figure 6 and Figure 7 shown, the diversion mechanism includes a diversion box 24 fixedly connected to one side of the track plate 21. The length of the diversion box 24 is equal to the length of the movement path of the metering cylinder 27, and the position of the diversion box 24 is on one side of the bottom of the L-shaped plate 26. Two diversion pipes 39 are connected to the bottom of the diversion box 24. A chute 37 is provided at the bottom of the machine tool 1, and a connecting plate 38 is slidably connected inside the chute 37. The outer parts of the two diversion pipes 39 away from the diversion box 24 are respectively fixedly connected to one side of the connecting plate 38, and the output ends of the two diversion pipes 39 away from the diversion box 24 are respectively connected to the interiors of two sliders 35, and the positions of the openings of the output ends of the diversion pipes 39 correspond to the positions of the tops of the guide rails 36;

[0036] Through the provided diversion mechanism, the lubricating oil output from the metering cylinder 27 can be automatically diverted onto the guide rail 36 for lubrication, thus avoiding the problem of insufficient input of lubricating oil. By setting the lubricating oil to be accurately delivered to the top of the guide rail 36, it not only ensures the uniformity and comprehensiveness of the lubrication effect, but also improves the lubrication efficiency with this design, enabling all parts of the guide rail 36 to be fully lubricated. When the lubrication enters the interior of the diversion box 24, the lubricating oil will be diverted from the two diversion pipes 39 into the interiors of the two sliders 35 respectively, and at the same time flow to the top of the guide rail 36 for lubrication. By setting the connection between the diversion pipe 39 and the slider 35, the long-distance guide rail 36 can be comprehensively lubricated through the movement of the slider 35, thus avoiding the problem of insufficient lubrication. At the same time, through the provided chute 37 and connecting plate 38, the connecting plate 38 serves to fix the diversion pipe 39. When the slider 35 moves with the diversion pipe 39, the diversion pipe 39 can drive the connecting plate 38 to slide inside the chute 37, thus facilitating the movement of the diversion pipe 39.

[0037] As Figures 1 to 5 shown, a return spring 22 is fixedly connected inside one end of the track plate 21. The end of the return spring 22 away from the interior of the track plate 21 is fixedly connected to the bottom of the sliding plate 23. One side of the rope winding roller 18 is fixedly connected with a driven wheel 16 through a shaft penetrating the interior of the third support 17. The bottom of the driven wheel 16 is connected to a driving wheel 15 through a belt drive.

[0038] Through the provided driving assembly, when the intermittent mechanism drives the driving wheel 15 to rotate, the driven wheel 16 will drive the rope winding roller 18 to rotate, thereby prompting the rope winding roller 18 to wind one end of the pulling rope 20, and the other end of the pulling rope 20 will pull the sliding plate 23 to move, thus prompting the connecting plate 25 to drive the metering cylinder 27 away from the bottom of the fixed block 29, so that the lubricating oil inside the metering cylinder 27 can flow out automatically, achieving the effect of automatic lubrication and avoiding the trouble of manual lubrication. At the same time, through the provided return spring 22, when the intermittent mechanism does not drive the driving wheel 15 to rotate, the return spring 22 will push the sliding plate 23 to automatically rebound, thus prompting the empty metering cylinder 27 to return to the bottom of the fixed block 29 again to collect lubricating oil. At the same time, the cover plate 32 will cover the bottom of the metering cylinder 27 again, thus avoiding the problem of lubricating oil leakage and facilitating the use of the next lubrication.

[0039] As Figures 1 to 7As shown, the intermittent mechanism includes a second triangular plate 13 fixedly connected to one side of the driving wheel 15 through an axis, the other side of the second triangular plate 13 is fixedly connected to the first triangular plate 12, the three ends of the second triangular plate 13 are respectively located between two of the three ends of the first triangular plate 12, the other side of the first triangular plate 12 is rotatably connected to the second bracket 14, one side of the second bracket 14 is rotatably connected to the linkage wheel 9, a side of the linkage wheel 9 is provided with an alignment hole 10, one side of the linkage wheel 9 is fixedly connected to a shifting post 11, the outer edge of the portion of the linkage wheel 9 away from the alignment hole 10 is stuck between two of the three ends of the first triangular plate 12, when the shifting post 11 shifts the second triangular plate 13 to rotate, one end of the first triangular plate 12 is just stuck in the inside of the alignment hole 10, and one side of the linkage wheel 9 is penetrated by the axis A rotating wheel 6 is fixedly connected to the inside of the second bracket 14, and a ratchet 7 is rotatably connected to the other side of the rotating wheel 6 through an axis, and a plurality of ratchet clips 8 are rotatably connected to the side of the rotating wheel 6 opposite to the ratchet 7 through an axis in an annular manner, and a plurality of fixed columns are fixedly connected to the side of the rotating wheel 6 opposite to the ratchet 7 in an annular manner, and a first spring is fixedly connected to one side of the fixed column, and an end of the first spring away from the fixed column is fixedly connected to one side of one end of the ratchet clip 8, and the other end of the ratchet clip 8 is engaged with the outside of the ratchet 7, and a gear 4 is fixedly connected to one side of the ratchet 7 through an axis, and the outside of the axis connecting the ratchet 7 and the gear 4 is rotatably connected to the first bracket 5, and a rack 3 is fixedly connected to one side of the processing frame 2, and the position of the rack 3 corresponds to the position of the gear 4, and when the rack 3 moves to the bottom of the gear 4, the gear 4 is driven to rotate;

[0040] By setting up an intermittent mechanism, through the mutual cooperation of the first triangular plate 12, the second triangular plate 13, the linkage wheel 9 and other components, intermittent driving of the driving component is realized. This design not only saves energy, but also avoids the problem of excessive lubricating oil caused by continuous lubrication, improves the accuracy and economy of lubrication, and at the same time enables the lubrication component to lubricate the guide rail 36 for a long time. When the rack 3 moves to the bottom of the gear 4, the gear 4 is prompted to rotate forward with the ratchet 7. At this time, the ratchet 7 will engage with the ratchet 8 and rotate with the linkage wheel 9. When the lever 11 on one side of the linkage wheel 9 moves to the side of the second triangular plate 13 to rotate the second triangular plate 13, the first triangular plate 12 will be inserted into the inside of the alignment hole 10, causing the first triangular plate 12 to rotate with the second triangular plate 13 is rotated again, thereby prompting the second triangular plate 13 to rotate with the driving wheel 15, thereby driving the driving component to automatically output the lubricating oil. By setting the lever 11 to contact the second triangular plate 13, the second triangular plate 13 can be prompted to rotate, which can achieve the effect of intermittently outputting the lubricating oil, thereby promoting the long-term use of the lubricating oil. At the same time, through the provided ratchet 7 and the rotating wheel 6, when the rack 3 drives the gear 4 to rotate in the opposite direction, the ratchet 7 will disengage the ratchet 8, thereby prompting the metering cylinder 27 to move only to one end of the guide box 24, thereby avoiding the problem of oil waste when the metering cylinder 27 moves to the other end, and at the same time, it can also achieve the effect of intermittently driving the linkage wheel 9 to rotate, thereby further extending the time for the lubricating oil to flow out, thereby promoting the long-term use of the lubricating oil.

[0041] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0042] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A CNC machining center stroke expansion device applicable to PP plastics, comprising a machine tool (1), wherein guide rails (36) are fixedly connected to both sides of the machine tool (1), a slider (35) is slidably connected to the outside of the guide rails (36), and a machining frame (2) is fixedly connected to the top of the slider (35), characterized in that, On one side of the processing frame (2), there is a lubrication assembly for lubricating the guide rail (36). The lubrication assembly includes a fourth bracket (19) installed on one side of the machine tool (1). The top of the fourth bracket (19) is fixedly connected with an oil storage tank (40). The output end of the oil storage tank (40) is communicated with a connecting pipe (30). The output end of the connecting pipe (30) is fixedly connected with a fixing block (29). The bottom of the fixing block (29) is fixedly connected with a guide plate (28). A positioning plate (31) is slidably connected inside the guide plate (28). The bottom of one end of the positioning plate (31) is fixedly connected with a metering cylinder (27). At the bottom of one end of the guide plate (28), there is a diversion mechanism for diverting the lubricating oil. On one side of the metering cylinder (27), there is a driving assembly for driving the lubrication of the lubrication assembly. The driving assembly includes a track plate (21) fixedly connected to the top of the fourth bracket (19). A sliding plate (23) is slidably connected to the top of the track plate (21). One side of the sliding plate (23) is fixedly connected with a connecting plate (25). The end of the connecting plate (25) away from the sliding plate (23) is fixedly connected with one side of the metering cylinder (27). One end of the sliding plate (23) is fixedly connected with a pull rope (20). The end of the pull rope (20) away from the sliding plate (23) is wound around the outside of a rope take-up roller (18). One side of the rope take-up roller (18) is rotatably connected by a shaft to a third bracket (17). At the bottom of one side of the third bracket (17), there is an intermittent mechanism for intermittently driving the driving assembly to output lubricating oil.

2. The CNC machining center stroke expansion device applicable to PP plastics according to claim 1, characterized in that, A hole is formed inside the fixing block (29), and a hole is formed inside one end of the positioning plate (31). The specification size of the hole inside the fixing block (29) and the specification size of the hole inside the positioning plate (31) are adapted to the specification size of the top opening of the metering cylinder (27).

3. The CNC machining center stroke expansion device applicable to PP plastics according to claim 1, characterized in that, The bottom of the guide plate (28) is fixedly connected with an L-shaped plate (26). One side of the bottom of the metering cylinder (27) is fixedly connected with a second connecting block (34). One end of the second connecting block (34) is rotatably connected by a shaft to a first connecting block (33). The other end of the first connecting block (33) is fixedly connected with a cover plate (32). The top of the cover plate (32) is in contact with the bottom of the metering cylinder (27), and the bottom of the cover plate (32) is in contact with the upper side of the bottom of the L-shaped plate (26).

4. The CNC machining center stroke expansion device applicable to PP plastics according to claim 3, characterized in that, The diversion mechanism includes a diversion box (24) fixedly connected to one side of the track plate (21). The length of the diversion box (24) is equal to the moving path length of the metering cylinder (27), and the position of the diversion box (24) is located on one side of the bottom of the L-shaped plate (26). The bottom of the diversion box (24) is communicated with two diversion pipes (39).

5. The stroke extension device for a CNC machining center applicable to PP plastics according to claim 4, characterized in that, A slide groove (37) is provided at the bottom of the machine tool (1), and a connecting plate (38) is slidably connected inside the slide groove (37), and the outsides of the two guide tubes (39) at one end away from the guide box (24) are respectively fixedly connected to one side of the connecting plate (38), and the output ends of the two guide tubes (39) away from the guide box (24) are respectively connected to the insides of the two sliders (35), and the positions of the openings of the output ends of the guide tubes (39) correspond to the positions of the tops of the guide rails (36).

6. The CNC machining center stroke expansion device applicable to PP plastics according to claim 1, characterized in that, A return spring (22) is fixedly connected to the interior of one end of the track plate (21), and one end of the return spring (22) away from the interior of the track plate (21) is fixedly connected to the bottom of the slide plate (23).

7. A CNC machining center stroke extension device applicable to PP plastics according to claim 1, characterized in that, One side of the rope collecting roller (18) is fixedly connected to a driven wheel (16) via a shaft that passes through the interior of the third bracket (17), and the bottom of the driven wheel (16) is connected to a driving wheel (15) via a belt drive.

8. The stroke extension device for a CNC machining center applicable to PP plastics according to claim 7, characterized in that, The intermittent mechanism comprises a second triangular plate (13) fixedly connected to one side of the driving wheel (15) via an axis, the other side of the second triangular plate (13) is fixedly connected to the first triangular plate (12), the three ends of the second triangular plate (13) are respectively located between two of the three ends of the first triangular plate (12), the other side of the first triangular plate (12) is rotatably connected to a second bracket (14) via an axis, one side of the second bracket (14) is rotatably connected to a linkage wheel (9), a side edge of the linkage wheel (9) is provided with an alignment hole (10), one side of the linkage wheel (9) is fixedly connected to a shifting post (11), the outer edge of a portion of the linkage wheel (9) away from the alignment hole (10) is clamped between two of the three ends of the first triangular plate (12), and when the shifting post (11) shifts the second triangular plate (13) to rotate, one end of the first triangular plate (12) is just clamped inside the alignment hole (10).

9. The CNC machining center stroke expansion device applicable to PP plastics according to claim 8, characterized in that, One side of the linkage wheel (9) is fixedly connected to a rotating wheel (6) via an axis passing through the interior of the second bracket (14); the other side of the rotating wheel (6) is rotatably connected to a ratchet (7) via an axis; the side of the rotating wheel (6) opposite to the ratchet (7) is rotatably connected to a plurality of ratchet clips (8) via an axis; the side of the rotating wheel (6) opposite to the ratchet (7) is annularly fixedly connected to a plurality of fixing columns; one side of the fixing column is fixedly connected to a first spring; one end of the first spring away from the fixing column is fixedly connected to one side of one end of the ratchet clip (8); the other end of the ratchet clip (8) is engaged with the outside of the ratchet (7).

10. The CNC machining center stroke expansion device applicable to PP plastics according to claim 9, characterized in that, One side of the ratchet (7) is fixedly connected to a gear (4) via a shaft, the outside of the shaft connecting the ratchet (7) and the gear (4) is rotatably connected to a first bracket (5), one side of the processing frame (2) is fixedly connected to a rack (3), the position of the rack (3) corresponds to the position of the gear (4), and when the rack (3) moves to the bottom of the gear (4), it drives the gear (4) to rotate.

Images