Split worktable for large vertical lathe

Abstract

The application discloses a split type workbench of a large vertical lathe and relates to the field of lathe workbenches.The split type workbench comprises an electric rotary table and a circular table installed on the top of the electric rotary table, six electric lead screws are installed on the inner side of the circular table, the top of each electric lead screw is provided with a workbench body, the top of the workbench body is provided with an installation groove, the workbench body is in a one-sixth circular structure, the top of the circular table is provided with a ventilation frame, and the inner side of the ventilation frame is provided with six exhaust nozzles; the application further comprises a protection mechanism for providing storage protection for the exhaust nozzles, the protection mechanism is installed on the top of the circular table, and the protection mechanism comprises six protection screens installed on the outer side of the ventilation frame; through the protection mechanism, the rotation of the workbench body is utilized, the exhaust nozzles are matched with the centrifugal force of the rotation of the workbench body, iron filings in the installation groove on the workbench body are quickly discharged, the exhaust nozzles can be stored and protected, and therefore, the comprehensiveness of iron filings cleaning is improved.

Description

Technical Field

[0001] This invention relates to the field of lathe worktables, specifically to a split-type worktable for a large vertical lathe. Background Technology

[0002] A large vertical lathe is a heavy-duty lathe with its spindle axis perpendicular to the horizontal plane and the workpiece mounted on a horizontal rotary table. It is specifically designed for machining large and heavy workpieces with large diameters and heavy weights, as well as parts that are difficult to clamp on a horizontal lathe.

[0003] On a lathe, the worktable serves as a robust platform that directly supports and fixes the workpiece being machined. Driven by the drive system, the workpiece rotates smoothly and precisely at a set speed, facilitating turning operations. However, when machining large workpieces, traditional circular worktables are insufficient to meet the size requirements. Existing lathes use a split-type worktable to fix the workpiece, but machining generates a large amount of waste. Roller brushes are typically used to clean the surface of the worktable, but split-type worktables have numerous mounting grooves, making it difficult for roller brushes to clean impurities from these grooves and potentially causing blockages. Summary of the Invention

[0004] The purpose of this invention is to provide a split-type worktable for a large vertical lathe to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A split-type worktable for a large vertical lathe includes: an electric rotary table and a circular platform mounted on top of the electric rotary table. Six centrally symmetrically distributed electric lead screws are mounted on the inner side of the circular platform. A worktable body is mounted on top of the electric lead screws, and the top of the worktable body has a mounting groove. The worktable body has a one-sixth circular structure, and adjacent worktable bodies are in contact with each other. A vent frame is provided on the top of the circular platform, and six centrally symmetrically distributed exhaust nozzles are provided on the inner side of the vent frame. The six exhaust nozzles are respectively aligned with the mounting grooves of the six worktable bodies. The worktable also includes: a protective mechanism for providing storage and protection for the exhaust nozzles, the protective mechanism being mounted on top of the circular platform. The protective mechanism includes six protective filters fixedly installed symmetrically on the outside of the vent frame, which prevent impurities from entering the exhaust nozzle; an angle adjustment mechanism to improve the cleaning efficiency of the exhaust nozzle on the mounting groove, which is installed on the inside of the vent frame and includes two rotating rods fixedly installed symmetrically on the outside of the exhaust nozzle, which can adjust the angle of the exhaust nozzle; and a cleaning mechanism to clean dust and impurities remaining on the protective filters, which is installed on the outside of the vent frame and includes multiple spiral scrapers symmetrically arranged on the outside of the vent frame, which can scrape off dust and impurities from the protective filters.

[0007] Preferably, the protective mechanism further includes a cover cylinder disposed outside the ventilated frame. A top plate and a bottom plate are fixedly installed on the top and bottom of the ventilated frame, respectively, and the bottom of the top plate is in contact with the top of the cover cylinder. An air inlet pipe is fixedly installed on the top of the bottom plate, and the exhaust nozzle is connected to the air inlet pipe through a hose. An annular plate is provided on the bottom of the bottom plate, and three electrically telescopic rods that are centrally symmetrically distributed are fixedly installed between the annular plate and the bottom of the circular platform.

[0008] Preferably, the angle adjustment mechanism further includes two support plates symmetrically arranged on both sides of the protective filter screen, and the support plates are fixedly installed on the inner side of the vent frame. The rotating rod on the outer side of the exhaust nozzle is rotatably installed on the outer side of the adjacent support plate. A gear is fixedly installed on the outer side of the rotating rod, and a rack plate is provided above the gear. A U-shaped rod is fixedly installed between the two rack plates. A push plate is fixedly installed on the outer side of the U-shaped rod. Two symmetrically distributed mounting rods are fixedly installed on the end of the push plate away from the U-shaped rod. A push block is fixedly installed between the two mounting rods. A sleeve is slidably installed between the two mounting rods, and the sleeve is fixedly installed on the bottom of the top plate. A movable rod extending to the inner side of the ventilated frame is slidably mounted on the bottom of the base plate. A pressure block is fixedly mounted on the top of the movable rod. The outer side of the pressure block contacts the outer side of the push block. The side of the push block near the pressure block has an inclined structure, and the pressure block has a frustum structure. A first spring is sleeved on the outer side of the mounting rod. The first spring is fixedly mounted between the sleeve and the push block. A pull plate is fixedly mounted on the bottom of the movable rod. A positioning rod is fixedly mounted on the inner side of the circular platform. A sleeve is rotatably mounted on the top of the positioning rod. The pull plate is slidably mounted on the outer side of the sleeve. A first tension spring is fixedly mounted between the top of the pull plate and the bottom of the base plate.

[0009] Preferably, the cleaning mechanism further includes a first annular frame fixedly installed at the bottom of the base plate. Multiple sliding rods rotatably mounted on the outer side of the first annular frame are centrally symmetrically distributed. A positioning cylinder is sleeved on the outer side of the first annular frame. The positioning cylinder is fixedly installed between the three electric telescopic rods. A spiral groove for limiting the sliding of the sliding rods is opened on the inner side of the positioning cylinder. The spiral angle of the spiral groove is sixty degrees. Multiple straight grooves, each connected to one of the spiral grooves, are opened on the inner side of the positioning cylinder. A spiral scraper is fixedly installed on the inner side of the cover cylinder. Three sliders centrally symmetrically distributed are fixedly installed at the bottom of the base plate. An arc-shaped groove for limiting the sliding of the sliders is opened at the top of the annular plate. An arc-shaped rod that slides through the slider is fixedly installed on the inner side of the arc-shaped groove. A second spring is sleeved on the outer side of the arc-shaped rod, and the second spring is fixedly installed between the slider and the inner side of the arc-shaped groove.

[0010] Preferably, two symmetrically distributed guide plates are fixedly installed on the outer side of the rack plate, and the outer side of the guide plates is in contact with the outer side of the gear.

[0011] Preferably, a slide is provided above the support plate, and the slide is fixedly installed at the bottom of the top plate, and the rack plate is slidably installed at the bottom of the adjacent slide.

[0012] Preferably, a rubber pad is fixedly installed on the top of the pressure block, and the top of the rubber pad is in contact with the bottom of the top plate.

[0013] Preferably, an annular box is fixedly installed at the bottom of the cover, and the annular box is fixedly installed on the inner side of the circular platform.

[0014] Preferably, a second annular frame is fixedly installed on the inner side of the annular box, and a baffle is slidably installed on the outer side of the second annular frame. The top of the baffle contacts the bottom of the base plate, and the outer side of the baffle contacts the inner side of the annular box. A plurality of second tension springs distributed centrally symmetrically are fixedly installed between the outer side of the baffle and the inner side of the annular box.

[0015] Preferably, two limiting blocks are fixedly installed inside the arc-shaped groove of the annular plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This invention, through a protective mechanism, can move six exhaust nozzles above the workbench body and align them with the mounting slots on the workbench body. By utilizing the rotation of the workbench body, the exhaust nozzles, in conjunction with the centrifugal force of the rotating workbench body, quickly discharge iron filings from the workbench body and the mounting slots. It can also store and protect the exhaust nozzles, thereby improving the comprehensiveness of iron filings cleaning.

[0018] 2. The present invention, through the angle adjustment mechanism, enables the exhaust nozzle to remain facing the end of the mounting groove near the top plate during the upward movement of the vent frame, which facilitates the rapid ejection of iron filings located between the multiple worktable bodies and the mounting groove, thereby improving the cleaning efficiency of iron filings.

[0019] 3. The present invention, through its cleaning mechanism, enables multiple protective filters to move in a circular motion along the outer side of multiple spiral scrapers as the vent frame moves upward, facilitating the removal of dust and impurities adhering to the protective filters. This ensures normal airflow during use, thereby achieving a cleaning and anti-clogging effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of a partial cross-sectional structure of the workbench body and the circular platform in this invention;

[0022] Figure 3 This is a schematic diagram of a partial cross-sectional structure of the cover and the annular box in this invention;

[0023] Figure 4 This is a schematic diagram of a partial cross-sectional structure of the ventilated frame and the top plate in this invention;

[0024] Figure 5 This is a schematic diagram of the pressure block and push block structure in this invention;

[0025] Figure 6 This is a schematic diagram of the gear and rack structure in this invention;

[0026] Figure 7 This is a schematic diagram of the annular plate and slider structure in this invention;

[0027] Figure 8 This is a schematic diagram of the positioning cylinder and sliding rod structure in this invention.

[0028] In the diagram: 1. Electric turntable; 2. Circular table; 3. Electric lead screw; 4. Worktable body; 5. Ventilation frame; 6. Exhaust nozzle; 7. Protective filter; 8. Rotating rod; 9. Spiral scraper; 10. Cover; 11. Top plate; 12. Bottom plate; 13. Air inlet pipe; 14. Annular plate; 15. Electric telescopic rod; 16. Support plate; 17. Limiting block; 18. Gear; 19. Slide; 20. Rack plate; 21. U-shaped rod; 22. Push plate; 23. 24. Mounting rod; 25. Push block; 26. Sleeve seat; 27. Moving rod; 28. Pressing block; 29. ​​First spring; 30. Pull plate; 31. Positioning rod; 32. Sleeve frame; 33. First tension spring; 34. First annular frame; 35. Slide rod; 36. Positioning cylinder; 37. Slider; 38. Arc rod; 39. Second spring; 40. Guide plate; 41. Rubber pad; 42. Annular box; 43. Second annular frame; 44. Baffle; 45. Second tension spring. Detailed Implementation

[0029] 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.

[0030] Example 1: Please refer to Figure 1 - Figure 8The large vertical lathe illustrated has a split-type worktable, including an electric rotary table 1 and a circular platform 2 mounted on top of the rotary table 1. Six centrally symmetrically distributed electric lead screws 3 are mounted on the inner side of the circular platform 2. A worktable body 4 is mounted on top of each lead screw 3, and a mounting groove is provided on the top of the worktable body 4. The worktable body 4 has a one-sixth circular structure, and adjacent worktable bodies 4 are in contact with each other, allowing the six worktable bodies 4 to be assembled into a disc-shaped structure. The electric lead screws 3 drive the corresponding worktable bodies 4 to move, facilitating placement. For large workpieces, a ventilation frame 5 is provided on the top of the circular platform 2, and six centrally symmetrical exhaust nozzles 6 are provided on the inner side of the ventilation frame 5. The six exhaust nozzles 6 are respectively aligned with the mounting slots of the six worktable bodies 4. The exhaust nozzles 6 blow iron filings on the worktable bodies 4. The electric turntable 1 can drive the circular platform 2 to rotate, and then the worktable bodies 4 above the electric lead screw 3 rotate synchronously, thereby generating centrifugal force to clean the iron filings on the worktable bodies 4 and facilitate the discharge of impurities in the mounting slots on the worktable bodies 4.

[0031] The protective mechanism includes six protective filters 7 centrally symmetrically fixedly installed on the outside of the vent frame 5. The protective filters 7 can prevent impurities from entering the exhaust nozzle 6. The protective mechanism also includes a cover 10 set on the outside of the vent frame 5. A top plate 11 and a bottom plate 12 are fixedly installed on the top and bottom of the vent frame 5, respectively, and the bottom of the top plate 11 contacts the top of the cover 10, so that the cover 10 provides housing protection for the vent frame 5. An air inlet pipe 13 is fixedly installed on the top of the bottom plate 12, and the exhaust nozzle 6 is connected to the air inlet pipe 13 through a hose. The air inlet pipe 13 can be connected to a fan, so that the air inlet pipe 13 delivers air into the exhaust nozzle 6 through the hose, so that the air can be discharged from the exhaust nozzle 6. An annular plate 14 is set at the bottom of the bottom plate 12, and the annular plate 14 and the circular platform 2 are connected to the bottom of the bottom plate 12. Three centrally symmetrically distributed electric telescopic rods 15 are fixedly installed at the bottom, allowing the electric telescopic rods 15 to push the bottom plate 12 upward via the annular plate 14. The ventilation frame 5 and the top plate 11 then move upward, and the exhaust nozzle 6 can move above the workbench body 4 to clean the iron filings on the workbench body 4 and in the mounting slot. Furthermore, the circular platform 2 can drive the annular plate 14 to rotate via the electric telescopic rods 15, causing the annular plate 14 to drive the bottom plate 12 to rotate. The exhaust nozzle 6 can rotate synchronously with the workbench body 4, ensuring that the exhaust nozzle 6 is aligned with the mounting slot. After cleaning, the electric telescopic rods 15 reset the top plate 11 and the ventilation frame 5, facilitating the storage and protection of the exhaust nozzle 6 and ensuring the normal use of the workbench body 4.

[0032] Example 2: Please refer to Figure 3 - Figure 6This embodiment further illustrates Example 1. The angle adjustment mechanism shown in the figure includes two symmetrically fixed rotating rods 8 on the outside of the exhaust nozzle 6. The rotating rods 8 can adjust the angle of the exhaust nozzle 6. The angle adjustment mechanism also includes two symmetrically arranged support plates 16 on both sides of the protective filter screen 7. The support plates 16 are fixedly installed on the inner side of the vent frame 5. The rotating rods 8 on the outside of the exhaust nozzle 6 are rotatably installed on the outside of the adjacent support plates 16. A gear 18 is fixedly installed on the outside of the rotating rod 8. A rack plate 20 is provided above the gear 18 so that when the rack plate 20 moves, it can drive the gear 18 to rotate. A U-shaped rod 21 is fixedly installed between the two rack plates 20. A push plate 22 is fixedly installed on the outside of the U-shaped rod 21. The end of the push plate 22 away from the U-shaped rod 21 is fixed. Two symmetrically distributed mounting rods 23 are installed, with a push block 24 fixedly installed between them. A sleeve 25 is slidably installed between the two mounting rods 23 and is fixedly installed at the bottom of the top plate 11. A movable rod 26 extending to the inner side of the vent frame 5 is slidably installed at the bottom of the bottom plate 12. A pressure block 27 is fixedly installed at the top of the movable rod 26, and the outer side of the pressure block 27 contacts the outer side of the push block 24. The side of the push block 24 near the pressure block 27 has a beveled structure, and the pressure block 27 has a frustum structure. A first spring 28 is sleeved on the outer side of the mounting rod 23 and is fixedly installed between the sleeve 25 and the push block 24. When the vent frame 5 moves upward, the top plate 11 can drive the mounting rod 23 upward through the sleeve 25. The push block 24 moves upward, and the push block 24 moves along the outer side of the pressure block 27. Using the reaction force of the pressure block 27 on the push block 24, the push block 24 drives the mounting rod 23 to move along the inner side of the sleeve 25, compressing the first spring 28. The mounting rod 23 then pushes the U-shaped rod 21 to move, causing the U-shaped rod 21 to move the rack plate 20. A pull plate 29 is fixedly installed at the bottom end of the moving rod 26. A positioning rod 30 is fixedly installed on the inner side of the circular platform 2. A sleeve 31 is rotatably installed on the top of the positioning rod 30. The pull plate 29 is slidably installed on the outer side of the sleeve 31. A first tension spring 32 is fixedly installed between the top of the pull plate 29 and the bottom of the base plate 12. When the vent frame 5 moves upward, the moving rod 26 can drive the pull plate 29 to move along the inner side of the sleeve 31. When the pull plate 29 contacts the top of the sleeve 31, the resistance of the sleeve 31 on the pull plate 29 causes the top plate 11 to move away from the pressure block 27, thus moving the push block 24. This causes the rack plate 20 to drive the gear 18 to rotate, and the gear 18, through the rotating rod 8, drives the exhaust nozzle 6 to swing downwards. As the vent frame 5 moves upwards, the exhaust nozzle 6 remains facing the end of the mounting groove near the top plate 11, facilitating the rapid ejection of iron filings located between the multiple worktable bodies 4 and the mounting groove, improving cleaning efficiency. Two symmetrically distributed guide plates 39 are fixedly installed on the outer side of the rack plate 20, and the outer side of the guide plates 39 contacts the outer side of the gear 18. This allows the rack plate 20 to move along the outer side of the gear 18 when it moves.To improve the smoothness of the rack plate 20's movement, a slide 19 is provided above the support plate 16, and the slide 19 is fixedly installed at the bottom of the top plate 11. The rack plate 20 is slidably installed at the bottom of the adjacent slide 19, so that the slide 19 provides support for the rack plate 20 and prevents the rack plate 20 from tilting. A rubber pad 40 is fixedly installed on the top of the pressure block 27, and the top of the rubber pad 40 contacts the bottom of the top plate 11. When the pressure block 27 returns to its original position, it can contact the bottom of the top plate 11 through the rubber pad 40, providing protection for the pressure block 27 and the top plate 11.

[0033] Example 3: Please refer to Figure 3 - Figure 8This embodiment further illustrates other embodiments. The cleaning mechanism shown in the figure includes multiple spiral scrapers 9 arranged symmetrically on the outside of the vent frame 5. The spiral scrapers 9 can scrape off dust and impurities on the protective filter screen 7. The cleaning mechanism also includes a first annular frame 33 fixedly installed at the bottom of the base plate 12. Multiple sliding rods 34 are rotatably installed on the outside of the first annular frame 33 and are arranged symmetrically on the outside. A positioning cylinder 35 is sleeved on the outside of the first annular frame 33. The positioning cylinder 35 is fixedly installed between three electric telescopic rods 15. The inner side of the positioning cylinder 35 is provided with a spiral groove for limiting the sliding of the sliding rods 34. The spiral angle of the spiral groove is sixty degrees. The inner side of the positioning cylinder 35 is provided with multiple straight grooves that are respectively connected to the multiple spiral grooves. The scraper 9 is fixedly installed on the inner side of the cover cylinder 10. When the base plate 12 moves upward, it can drive the slide rod 34 on the first annular frame 33 to move along the spiral groove of the positioning cylinder 35. The slide rod 34 can drive the base plate 12 to rotate through the first annular frame 33. The base plate 12 can then drive the protective filter 7 on the vent frame 5 to make a circular motion. The protective filter 7 can then move along the outer side of the spiral scraper 9, which is convenient for scraping off the dust and impurities remaining on the protective filter 7. The moving angle of the protective filter 7 is 60 degrees, ensuring that the six protective filters 7 are aligned with the six mounting slots. Three centrally symmetrically distributed sliders 36 are fixedly installed on the bottom of the base plate 12. The top of the annular plate 14 is provided with an arc-shaped groove for the sliders 36 to slide in a limited manner. An arc-shaped rod 37, which slides through the slider 36, is fixedly installed on the side. A second spring 38 is sleeved on the outer side of the arc-shaped rod 37 and is fixedly installed between the slider 36 and the inner side of the arc-shaped groove. When the base plate 12 rotates, it can drive the slider 36 to move along the inner side of the arc-shaped groove and the outer side of the arc-shaped rod 37, and compress the second spring 38. When the base plate 12 returns to its original position, the rebound force of the second spring 38 can be used to facilitate the movement and return of the base plate 12 and the slider 36. An annular box 41 is fixedly installed at the bottom of the cover cylinder 10. The annular box 41 is fixedly installed inside the circular platform 2, so that the dust and impurities scraped by the spiral scraper 9 can enter the annular box 41. A second annular frame 42 is fixedly installed inside the annular box 41. A baffle 43 is slidably mounted on the outer side of the ring frame 42. The top of the baffle 43 contacts the bottom of the base plate 12, and the outer side of the baffle 43 contacts the inner side of the ring box 41. Multiple second tension springs 44 are fixedly installed between the outer side of the baffle 43 and the inner side of the ring box 41 in a centrally symmetrical manner. When the base plate 12 moves upward, the rebound force of the second tension springs 44 causes the baffle 43 to move upward synchronously against the bottom of the base plate 12. The baffle 43 can guide the dust and impurities on the spiral scraper 9, making it easier for the dust and impurities to enter the ring box 41. Two limiting blocks 17 are fixedly installed on the inner side of the arc groove of the ring plate 14, so that when the slider 36 moves, it can contact the outer side of the limiting block 17 to ensure the movement angle of the slider 36.

[0034] Working principle: First, the operator activates three electric telescopic rods 15, which push the annular plate 14 upward. The annular plate 14 pushes the base plate 12 upward, causing the base plate 12 to move the vent frame 5 upward along the outer side of the multiple spiral scrapers 9. The vent frame 5 moves the top plate 11 away from the cover cylinder 10. Simultaneously, the base plate 12 moves the first annular frame 33 along the inner side of the positioning cylinder 35. The first annular frame 33 moves the slide rod 34 along the spiral groove inside the positioning cylinder 35, causing the slide rod 34 to rotate the first annular frame 33 by 60 degrees. The first annular frame 33 then rotates the base plate 12, causing the base plate 12 to move the slider 36 along the arc of the annular plate 14. The inner side of the groove moves along the outer side of the arc-shaped rod 37, and the vent frame 5 drives the six protective filters 7 to move in a circular motion along the outer side of the spiral scraper 9, so that the spiral scraper 9 scrapes away the dust and impurities on the surface of the protective filters 7, preventing the protective filters 7 from becoming blocked. Then, the base plate 12 continues to move upward, and the fan inputs air into the exhaust nozzle 6 through the air inlet pipe 13, so that the exhaust nozzle 6 blows the iron filings on the top of the workbench body 4 and the inner side of the mounting groove. At the same time, the electric turntable 1 drives the circular platform 2 to rotate, and the circular platform 2 drives the workbench body 4 to rotate. Since the electric telescopic rod 15 is fixedly installed on the inner side of the circular platform 2, when the circular platform 2 rotates, it will drive the electric telescopic rod 15, the annular plate 14 and The ventilation frame 5 rotates synchronously, thereby keeping the six exhaust nozzles 6 rotating synchronously with the workbench body 4, aligning the exhaust nozzles 6 with the mounting slots. The centrifugal force generated by the rotation of the workbench body 4 dissipates the blown iron filings. At this time, the pull plate 29 at the bottom of the moving rod 26 contacts the inner top of the sleeve 31. The reaction force of the sleeve 31 on the pull plate 29 stops the moving rod 26 and the pressure block 27 from moving. The push block 24 can then move away from the pressure block 27, and the inclined surface of the push block 24 can move along the outer side of the pressure block 27, causing the pressure block 27 to push the push block 24. The push block 24 pushes the mounting rod 23 to move along the inner side of the sleeve 25. The mounting rod 23, through the push plate 22, drives the U-shaped... The movement of rod 21 causes the U-shaped rod 21 to move the two rack plates 20. The rack plates 20 drive the gear 18 to rotate, causing the gear 18 to drive the exhaust nozzle 6 to swing downward through the rotating rod 8. During the upward movement of the vent frame 5, the exhaust nozzle 6 remains facing the end of the mounting groove near the top plate 11, which facilitates the rapid spraying of iron filings located between the multiple worktable bodies 4 and the mounting groove. Finally, the electric telescopic rod 15 pulls the annular plate 14 downward to reset, causing the annular plate 14 to pull the bottom plate 12 downward to reset through the arc rod 37, retracting the vent frame 5 into the cover cylinder 10, ensuring the normal use of the worktable body 4, thereby achieving the effect of quickly cleaning iron filings and improving the comprehensiveness of iron filings cleaning.

[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] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Split worktable for large vertical lathe, characterized in that, Include: Electric rotating table (1) and install in the top of the electric rotating table (1) circular table (2), the inner side of the circular table (2) is installed with six electric screw rod (3), the top of the electric screw rod (3) is installed with workbench body (4), the top of the workbench body (4) is set up with installation slot, the workbench body (4) is six one circular structure, the top of the circular table (2) is provided with ventilating frame (5), and the inner side of the ventilating frame (5) is provided with six exhaust nozzle (6); Also include: Protection mechanism for providing storage protection for the exhaust nozzle (6), the protection mechanism is installed on the top of the circular table (2), the protection mechanism includes six protection filter screen (7) installed on the outer side of the ventilating frame (5), the protection filter screen (7) can prevent impurities from entering the exhaust nozzle (6), the outer side of the ventilating frame (5) is provided with cover cylinder (10), the top and bottom of the ventilating frame (5) are respectively fixedly installed with top plate (11) and bottom plate (12), and the bottom of the top plate (11) is in contact with the top of the cover cylinder (10), the top of the bottom plate (12) is fixedly installed with air inlet connector (13), and the exhaust nozzle (6) is connected with the air inlet connector (13) through the hose, the bottom of the bottom plate (12) is provided with annular plate (14), and three electric telescopic rods (15) are installed between the annular plate (14) and the bottom of the circular table (2). The angle adjusting mechanism is installed on the inner side of the air permeating frame (5), and comprises two rotating rods (8) symmetrically and fixedly installed on the outer side of the exhaust nozzle (6), which can adjust the angle of the exhaust nozzle (6); the both sides of the protective filter screen (7) are provided with supporting plates (16) installed on the inner side of the air permeating frame (5), and the rotating rod (8) on the outer side of the exhaust nozzle (6) is rotatably installed on the outer side of the adjacent supporting plate (16); the outer side of the rotating rod (8) is fixedly provided with a gear (18), the upper side of the gear (18) is provided with a rack plate (20), a U-shaped rod (21) is installed between the two rack plates (20), a push plate (22) is installed on the outer side of the U-shaped rod (21), one end of the push plate (22) is provided with two installation rods (23), a push block (24) is installed between the two installation rods (23), a sleeve base (25) is slidably installed between the two installation rods (23), and the sleeve base (25) is installed on the bottom of the top plate (11); the bottom of the bottom plate (12) is slidably provided with a moving rod (26), the top end of the moving rod (26) is provided with a pressing block (27), the outer side of the pressing block (27) is in contact with the outer side of the push block (24), one side of the push block (24) is provided with an inclined surface, the pressing block (27) is provided with a prism structure, the outer side of the installation rod (23) is provided with a first spring (28), the first spring (28) is installed between the sleeve base (25) and the push block (24), the bottom end of the moving rod (26) is provided with a pull disc (29), the inner side of the circular table (2) is provided with a positioning rod (30), the top of the positioning rod (30) is rotatably provided with a sleeve frame (31), the pull disc (29) is slidably installed on the outer side of the sleeve frame (31), the top of the pull disc (29) and the bottom of the bottom plate (12) are provided with a first pull spring (32), the outer side of the rack plate (20) is provided with two guide plates (39), the outer side of the guide plate (39) is in contact with the outer side of the gear (18), the upper side of the supporting plate (16) is provided with a sliding frame (19), and the sliding frame (19) is installed on the bottom of the top plate (11); and the rack plate (20) is slidably installed on the bottom of the adjacent sliding frame (19). The cleaning mechanism is installed outside the air permeable frame (5), and comprises a plurality of helical scraping strips (9) arranged in a central symmetry outside the air permeable frame (5), the helical scraping strips (9) can scrape off dust and impurities on the protective filter screen (7), a first annular frame (33) is installed at the bottom of the bottom plate (12), a plurality of slide rods (34) are rotatably installed outside the first annular frame (33), a positioning cylinder (35) is sleeved outside the first annular frame (33), the positioning cylinder (35) is installed between the three electric telescopic rods (15), and helical grooves are formed in the inner side of the positioning cylinder (35) for limiting sliding of the slide rods (34), a plurality of straight grooves are formed in the inner side of the positioning cylinder (35) and connected with the plurality of helical grooves, the helical scraping strips (9) are installed inside the cover cylinder (10), three slide blocks (36) are fixedly installed at the bottom of the bottom plate (12), an arc-shaped slot is formed in the top of the annular plate (14) for limiting sliding of the slide blocks (36), an arc-shaped rod (37) is fixedly installed on the inner side of the arc-shaped slot and slidably penetrates through the slide blocks (36), a second spring (38) is sleeved outside the arc-shaped rod (37) and installed between the slide blocks (36) and the inner side of the arc-shaped slot, a ring-shaped box (41) is installed at the bottom of the cover cylinder (10), the ring-shaped box (41) is installed inside the circular table (2), a second annular frame (42) is installed inside the ring-shaped box (41), a blocking cylinder (43) is slidably installed outside the second annular frame (42), the top of the blocking cylinder (43) is in contact with the bottom of the bottom plate (12), and a plurality of second tension springs (44) are installed between the outer side of the blocking cylinder (43) and the inner side of the ring-shaped box (41).

2. The split bed of claim 1 wherein: A rubber pad (40) is installed at the top of the pressing block (27), and the top of the rubber pad (40) is in contact with the bottom of the top plate (11).

3. The split bed of claim 1 wherein: Two limiting blocks (17) are installed inside the arc-shaped slot of the annular plate (14).

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