A double-spindle vertical machining center

Abstract

The present application relates to a kind of double-spindle vertical machining center, belong to machine tool processing technical field, including spindle box equipment, and fixed mechanism being set to the outside of spindle box equipment, the top of the described spindle box equipment is provided with the scraping cleaning structure for the chip inside fixed mechanism is scraped and is handled, the inside of the fixed mechanism is also provided with the pneumatic cleaning structure for the chip of residual during scraping process is cleaned, the outside of the described spindle box equipment is provided with transmission structure and transmission block respectively with the linkage of scraping cleaning structure and pneumatic cleaning structure;The described spindle box equipment is by base, fixed seat, hydraulic cylinder, connecting seat and spindle box composition.The present application has realized efficient, automated, low-maintenance processing and cleaning process, ensure that processing and cleaning process seamlessly link, reduce the influence of cooling water and chip in processing process to equipment, improve processing precision and the service life of equipment.

Description

Technical Field

[0001] This invention relates to the field of machine tool processing technology, specifically to a dual-spindle vertical machining center. Background Technology

[0002] A machining center, or CNC for short, is a high-efficiency automated machine tool composed of mechanical equipment and a numerical control system, suitable for machining complex-shaped workpieces. Machining centers are highly mechatronic products. After the workpiece is clamped, the CNC system can control the machine tool to automatically select and change tools, automatically set tools, and automatically change the spindle speed and feed rate according to different processes. It can continuously complete multiple processes such as drilling, boring, milling, reaming, and tapping, thus greatly reducing the time for workpiece clamping, measurement, and machine tool adjustment. It has good economic benefits for machining parts with complex shapes, high precision requirements, and frequent product changes.

[0003] Chinese utility model patent CN218081482U discloses a dual-spindle vertical machining center, including a base. A fixing component is installed on one side of the base, and a cooling component is installed on the surface of the base. By setting the fixing component, the present invention allows two workpieces to be placed under the spindle, and the motor drives the transmission rod to rotate. Under the meshing connection between the transmission rod and the slider, the two sliders inside the through groove can move towards each other, thereby allowing the clamping plates to synchronously clamp and fix the two workpieces.

[0004] The aforementioned patent has the following shortcomings: the drive rod of the fixed component of this dual-spindle vertical machining center is exposed and lacks effective protection measures. During machining, debris and cooling water inevitably splash onto the drive rod. These impurities not only adhere to the surface of the drive rod, increasing motion resistance, but may also enter the gaps between the drive rod and the clamping plate, leading to accelerated wear, decreased transmission accuracy, and even transmission failure. This seriously affects the normal operation and service life of the machining center, while also increasing equipment maintenance costs and downtime. Therefore, it is urgent to improve the dual-spindle vertical machining center to solve the above-mentioned problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a dual-spindle vertical machining center that achieves efficient, automated, and low-maintenance machining and cleaning processes. It ensures seamless integration of machining and cleaning processes, reduces the impact of cooling water and debris on the equipment during machining, and improves machining accuracy and equipment lifespan.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a dual-spindle vertical machining center. It includes a spindle box assembly and a fixing mechanism disposed outside the spindle box assembly. The top of the spindle box assembly is provided with a scraping and cleaning structure for scraping debris inside the fixing mechanism. The interior of the fixing mechanism is also provided with a pneumatic cleaning structure for cleaning debris remaining during the scraping process. The exterior of the spindle box assembly is provided with a transmission structure and a transmission block that are respectively linked to the scraping and cleaning structure and the pneumatic cleaning structure. The spindle box device consists of a base, a fixed seat, a hydraulic cylinder, a connecting seat, and a spindle box; The scraping and cleaning structure includes two pushing structures, with an air pumping structure between the two pushing structures. Each pushing structure includes a first piston cylinder fixedly connected to the outside of the mounting box, a first sliding plate slidably connected to the inside of the first piston cylinder, a first push rod fixedly connected to the outside of the first sliding plate, and a scraper fixedly connected to one end of the first push rod. The pneumatic cleaning structure includes a feeding structure and an air blowing structure. The feeding structure includes a connecting lug fixedly connected to the inner wall of the base, a guide rod fixedly connected to the inside of the connecting lug, a baffle slidably connected to the outside of the guide rod, a connecting block fixedly connected to the back of the baffle, and a connecting rod hinged to the top of the connecting block.

[0007] Preferably, the fixing mechanism includes a fixing component and a protective component. The fixing component includes a mounting box fixedly connected to the top of the base, a drive motor fixedly installed outside the mounting box, a transmission rod fixedly connected to the output shaft of the drive motor, threaded blocks threadedly connected to the left and right sides of the transmission rod, and a clamping plate fixedly connected to the top of the threaded blocks. The threads on the two sides of the transmission rod are arranged in opposite directions. The protective assembly includes a first telescopic bellows fixedly connected between the two threaded blocks, a second telescopic bellows fixedly connected between the threaded blocks and the mounting box, a discharge port opened inside the mounting box, and a flow guide fixedly connected inside the mounting box.

[0008] Preferably, a first return spring is fixedly connected between the first sliding plate and the inner wall of the first piston cylinder, the first push rod is slidably connected to the inside of the first piston cylinder through the first sliding plate and extends to its outside, the inside of the mounting box is provided with a transmission port adapted to the first push rod, the scraper is distributed in an inclined manner inside the mounting box and abuts against the top of the guide seat, and the first return spring is connected to the outside of the first push rod.

[0009] Preferably, the air-inflating structure includes a mounting cylinder fixedly connected to the top of the base, a stopper plate slidably connected inside the mounting cylinder, a first stopper rod fixedly connected to the top of the stopper plate, an abutment wheel rotatably connected to the top of the first stopper rod via a hinge seat, a second return spring fixedly connected between the mounting cylinder and the abutment wheel, and an air inlet pipe and a three-way pipe fixedly connected to the outside of the mounting cylinder. The two sets of the pushing structure are symmetrically distributed on the outside of the mounting box and extend into its interior. The two sets of first piston cylinders are respectively fixedly connected to the three-way pipe via air supply pipes.

[0010] Preferably, there are four connecting ears and two sets of guide rods, which are symmetrically distributed between the four connecting ears. The baffle abuts against the lower surface of the discharge port, and the outer diameter of the baffle matches the inner diameter of the discharge port. The baffle is slidably connected to the outside of the discharge port via the connecting rod.

[0011] Preferably, the blowing structure includes a nozzle fixedly installed outside the scraper, a second piston cylinder fixedly connected to the inner wall of the base, a second sliding plate slidably connected inside the second piston cylinder, a second push rod fixedly connected between the second sliding plate and the connecting block, an air extraction pipe fixedly connected to the outside of the second piston cylinder, and a connecting pipe fixedly connected between the second piston cylinder and the nozzle. The number of nozzles is two, and the two nozzles are symmetrically distributed on the outside of the two sets of scrapers. The second sliding plate is reciprocally slidably connected to the inside of the second piston cylinder through the connecting block.

[0012] Preferably, the transmission structure includes two columns fixedly connected to the top of the base, a top plate fixedly connected to the top of the two columns, a limiting plate slidably connected to the outside of the two columns, a moving plate fixedly connected between the two limiting plates, a mounting base fixedly connected to the outside of the other column, a rotating shaft rotatably connected inside the mounting base and extending to its outside, an eccentric block fixedly connected to one end of the rotating shaft, a gear fixedly connected to the other end of the rotating shaft, and a toothed plate fixedly connected to the lower surface of the moving plate. The eccentric block is rotatably connected to the outside of the mounting base and is in rolling contact with the outside of the abutment wheel.

[0013] Preferably, the movable plate is linked to the spindle box via a transmission block. The transmission block is fixedly connected to the outside of the spindle box, and the top of the transmission block abuts against the lower surface of the movable plate. A retaining spring is fixedly connected between the top plate and the limiting plate. The retaining spring is connected to the outside of the column. The gear and the toothed plate mesh with each other. The toothed plate is oscillatingly connected to the upper surface of the base via the movable plate. A drive plate for synchronously driving the pneumatic cleaning structure is also fixedly connected to the outside of the movable plate. The end of the connecting rod away from the connecting block is rotatably connected to the drive plate via a hinge.

[0014] Preferably, a cooling mechanism is provided on the outside of the base. The cooling mechanism includes a water tank fixedly connected to the outside of the base, a delivery pump fixedly installed on the top of the water tank, and a branch pipe fixedly connected to the output end of the delivery pump. A nozzle is fixedly connected to the end of the branch pipe away from the delivery pump, and the nozzle is located on the outside of the spindle box.

[0015] Preferably, the base is provided with a filter assembly extending into its interior. The filter assembly includes a collection box fixedly connected to the interior of the base, a filter screen slidably connected to the interior of the collection box, and a return pipe fixedly connected between the collection box and the water tank.

[0016] Compared with the prior art, the present invention provides a dual-spindle vertical machining center, which has the following advantages: 1. This dual-spindle vertical machining center utilizes the inertia of the spindle box's vertical movement during machining to trigger the cleaning action of the transmission structure, thereby linking the scraping and pneumatic cleaning structures. The scraper of the scraping structure can directly scrape off the debris on the inner wall of the mounting box, while the nozzle of the pneumatic cleaning structure blows away the remaining debris, achieving dual cleaning through mechanical scraping and pneumatic blowing. This ensures that no debris remains, and the two work together to ensure thorough cleaning of debris inside the fixed mechanism, guaranteeing machining accuracy and normal equipment operation.

[0017] 2. This dual-spindle vertical machining center effectively prevents debris and cooling water from entering the area where the transmission rod is located through the combined use of the first and second telescopic bellows of the protective assembly. This provides good protection for key components such as the transmission rod, extends the service life of the equipment, and reduces maintenance costs.

[0018] 3. This dual-spindle vertical machining center, through the transmission structure linking the transmission block, drive plate and spindle box, realizes the automated operation of the scraping cleaning structure and the pneumatic cleaning structure. Through the rolling connection between the eccentric block and the abutment wheel, and the meshing of the gear and the tooth plate, the stability and reliability of the transmission structure are ensured, kinetic energy is recovered and utilized, the equipment structure is simplified and the energy utilization efficiency is improved. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a dual-spindle vertical machining center according to the present invention; Figure 2 This is a schematic diagram of the connection structure of the fixing mechanism, scraping and cleaning structure, transmission block, transmission structure and drive plate of a dual-spindle vertical machining center according to the present invention. Figure 3 This is a schematic diagram of the fixing mechanism of a dual-spindle vertical machining center according to the present invention; Figure 4This is a schematic diagram of the scraping and cleaning structure and the transmission structure of a dual-spindle vertical machining center according to the present invention; Figure 5 This is a schematic diagram of the transmission mechanism of a dual-spindle vertical machining center according to the present invention; Figure 6 This is a schematic diagram of the scraping and cleaning structure of a dual-spindle vertical machining center according to the present invention; Figure 7 This is a schematic diagram of the scraping and cleaning structure and nozzle of a dual-spindle vertical machining center according to the present invention; Figure 8 This is a schematic diagram of the pneumatic cleaning structure of a dual-spindle vertical machining center according to the present invention; Figure 9 This is a schematic diagram of the structure of a filter assembly in a dual-spindle vertical machining center according to the present invention.

[0020] In the diagram: 1. Spindle box assembly; 11. Base; 12. Fixed seat; 13. Hydraulic cylinder; 14. Connecting seat; 15. Spindle box; 2. Fixing mechanism; 21. Mounting box; 22. Drive motor; 23. Transmission rod; 24. Threaded block; 25. Clamping plate; 26. First telescopic bellows; 27. Second telescopic bellows; 28. Discharge port; 29. ​​Guide seat; 3. Scraping and cleaning structure; 31. First piston cylinder; 32. First sliding plate; 33. First push rod; 34. First return spring; 35. Scraper; 36. Mounting cylinder; 37. Plug plate; 38. First plug rod; 39. Second return spring; 310. Abutment wheel; 311. Air inlet pipe; 312. T-pipe; 313. 4. Air supply pipe; 4. Pneumatic cleaning structure; 41. Connecting ear; 42. Guide rod; 43. Baffle; 44. Connecting block; 45. Connecting rod; 46. Second piston cylinder; 47. Second sliding plate; 48. Second push rod; 49. Suction pipe; 410. Connecting pipe; 411. Nozzle; 5. Transmission block; 6. Transmission structure; 61. Column; 62. Top plate; 63. Moving plate; 64. Limiting plate; 65. Abutment spring; 66. Mounting base; 67. Rotating shaft; 68. Eccentric block; 69. Gear; 610. Tooth plate; 7. Drive plate; 8. Filter assembly; 81. Collection box; 82. Filter screen; 83. Return pipe; 9. Cooling mechanism; 91. Water tank; 92. Delivery pump; 93. Branch pipe. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1 to 9 This embodiment of a dual-spindle vertical machining center includes a spindle box device 1 and a fixing mechanism 2 disposed outside the spindle box device 1. The top of the spindle box device 1 is provided with a scraping and cleaning structure 3 for scraping and cleaning the debris inside the fixing mechanism 2. The inside of the fixing mechanism 2 is also provided with a pneumatic cleaning structure 4 for cleaning the debris remaining during the scraping process. The outside of the spindle box device 1 is provided with a transmission structure 6 and a transmission block 5 that are linked with the scraping and cleaning structure 3 and the pneumatic cleaning structure 4 respectively. The spindle box device 1 consists of a base 11, a fixed seat 12, a hydraulic cylinder 13, a connecting seat 14, and a spindle box 15. The fixed seat 12 is fixedly connected to the top of the base 11, the hydraulic cylinder 13 is fixedly installed on the upper surface of the fixed seat 12, the connecting seat 14 is fixedly connected to the output end of the hydraulic cylinder 13, and the spindle box 15 is fixedly connected to the outside of the connecting seat 14. A milling spindle is rotatably connected inside the spindle box 15. The spindle box 15 is a conventional technology known to the public in the prior art, therefore its specific structural composition and working principle will not be described in detail in this article.

[0023] Specifically, the fixing mechanism 2 consists of a mounting box 21, a drive motor 22, a transmission rod 23, threaded blocks 24, a clamping plate 25, and a guide seat 29. The fixing mechanism 2 includes a fixing component and a protective component. The protective component includes a first telescopic bellows 26 fixedly connected between the two threaded blocks 24, a second telescopic bellows 27 fixedly connected between the threaded blocks 24 and the mounting box 21, a discharge port 28 opened inside the mounting box 21, and a guide seat 29 fixedly connected inside the mounting box 21. The first telescopic bellows 26 and the second telescopic bellows 27 can extend and retract with the movement of the threaded blocks 24, effectively preventing debris and cooling water from entering the area where the transmission rod 23 is located, thus protecting the transmission rod 23 and other components. The discharge port 28 is used to discharge the cleaned debris, and the guide seat 29 guides the debris to flow into the discharge port 28.

[0024] It should be noted that the fixing assembly includes a mounting box 21 fixedly connected to the top of the base 11, a drive motor 22 fixedly mounted outside the mounting box 21, a transmission rod 23 fixedly connected to the output shaft of the drive motor 22, threaded blocks 24 threadedly connected to the left and right sides of the transmission rod 23, and a clamping plate 25 fixedly connected to the top of the threaded blocks 24. The threads on the two sides of the transmission rod 23 are arranged in opposite directions. When the drive motor 22 drives the transmission rod 23 to rotate, the two threaded blocks 24 will move towards or away from each other along the transmission rod 23, thereby causing the clamping plate 25 to clamp or release the workpiece.

[0025] To remove debris adhering to the inner wall of the mounting box 21, in this embodiment, the scraping and cleaning structure 3 includes two pushing structures with an air-pumping structure between them. Each pushing structure includes a first piston cylinder 31 fixedly connected to the outside of the mounting box 21, a first sliding plate 32 slidably connected inside the first piston cylinder 31, a first push rod 33 fixedly connected to the outside of the first sliding plate 32, and a scraper 35 fixedly connected to one end of the first push rod 33. The pushing structure removes debris through the coordinated operation of the first piston cylinder 31, the first sliding plate 32, the first push rod 33, and the scraper 35.

[0026] It should be noted that a first return spring 34 is fixedly connected between the inner wall of the first slide plate 32 and the first piston cylinder 31. The first push rod 33 is slidably connected to the inside of the first piston cylinder 31 through the first slide plate 32 and extends to its outside. The inside of the mounting box 21 is provided with a transmission port that matches the first push rod 33. The scraper 35 is distributed in an inclined manner inside the mounting box 21 and abuts against the top of the guide seat 29. The first return spring 34 is connected to the outside of the first push rod 33.

[0027] Specifically, the air-inflating structure includes a mounting cylinder 36 fixedly connected to the top of the base 11, a stopper plate 37 slidably connected inside the mounting cylinder 36, a first stopper rod 38 fixedly connected to the top of the stopper plate 37, an abutment wheel 310 rotatably connected to the top of the first stopper rod 38 via a hinge seat, a second return spring 39 fixedly connected between the mounting cylinder 36 and the abutment wheel 310, and an air inlet pipe 311 and a three-way pipe 312 fixedly connected to the outside of the mounting cylinder 36. The two sets of pushing structures are symmetrically distributed on the outside of the mounting box 21 and extend into its interior. The two sets of first piston cylinders 31 are fixedly connected to the three-way pipe 312 via air supply pipes 313. The air-inflating structure provides power to the pushing structure through the cooperation of the mounting cylinder 36, the stopper plate 37, the first stopper rod 38, and the abutment wheel 310.

[0028] When the spindle box equipment 1 is processing, the transmission structure 6 drives the abutment wheel 310 to move up and down. The up and down movement of the abutment wheel 310 pushes the first stopper rod 38 and the stopper plate 37 to slide inside the mounting cylinder 36, generating a change in air pressure. The change in air pressure is transmitted to the first piston cylinder 31 through the air supply pipe 313 and the three-way pipe 312, pushing the first slide plate 32 and the first push rod 33 to move. The movement of the first push rod 33 drives the scraper 35 to scrape off the debris, and the debris slides down the guide seat 29 to the discharge port 28. After the scraper 35 finishes scraping, the first return spring 34 helps the first slide plate 32 and the first push rod 33 to return to their original positions.

[0029] To thoroughly clean up debris remaining during the scraping process, in this embodiment, the pneumatic cleaning structure 4 includes a feeding structure and an air blowing structure. The feeding structure includes a connecting lug 41 fixedly connected to the inner wall of the base 11, a guide rod 42 fixedly connected inside the connecting lug 41, a baffle 43 slidably connected to the outside of the guide rod 42, a connecting block 44 fixedly connected to the back of the baffle 43, and a connecting rod 45 hinged to the top of the connecting block 44. The feeding structure controls the opening and closing of the feeding port 28 through the cooperation of the baffle 43 and the connecting rod 45.

[0030] There are four connecting ears 41 and two sets of guide rods 42. The two sets of guide rods 42 are symmetrically distributed between the four connecting ears 41. The baffle 43 abuts against the lower surface of the discharge port 28. The outer diameter of the baffle 43 is adapted to the inner diameter of the discharge port 28. The baffle 43 is slidably connected to the outside of the discharge port 28 through the connecting rod 45.

[0031] Specifically, the air-blowing structure includes a nozzle 411 fixedly installed on the outside of the scraper 35, a second piston cylinder 46 fixedly connected to the inner wall of the base 11, a second sliding plate 47 slidably connected inside the second piston cylinder 46, a second push rod 48 fixedly connected between the second sliding plate 47 and the connecting block 44, an air extraction pipe 49 fixedly connected to the outside of the second piston cylinder 46, and a connecting pipe 410 fixedly connected between the second piston cylinder 46 and the nozzle 411. There are two nozzles 411, symmetrically distributed on the outside of the two sets of scrapers 35. The second sliding plate 47 is reciprocally slidably connected to the inside of the second piston cylinder 46 via the connecting block 44. The air-blowing structure, through the coordinated operation of the second piston cylinder 46, the second sliding plate 47, the second push rod 48, and the nozzle 411, pneumatically cleans residual debris.

[0032] When the transmission structure 6 drives the drive plate 7 to move up and down, the up and down movement of the drive plate 7 drives the baffle 43 to slide on the guide rod 42 via the connecting rod 45, controlling the opening and closing of the discharge port 28. At the same time, the movement of the baffle 43, through the cooperation of the second push rod 48 and the second slide plate 47, generates a pressure change in the second piston cylinder 46. The pressure change is transmitted to the nozzle 411 through the connecting pipe 410, spraying out high-pressure gas to clean up residual debris. Compressed air is delivered to the nozzle 411 through the connecting pipe 410 to pneumatically clean up the debris remaining during the scraping process of the scraper 35, blowing the debris into the discharge port 28. The suction pipe 49 creates a negative pressure in the second piston cylinder 46 to help draw in external air, preparing for the next jet spray.

[0033] In this embodiment, the transmission structure 6 includes two columns 61 fixedly connected to the top of the base 11, a top plate 62 fixedly connected to the top of the two columns 61, limiting plates 64 slidably connected to the outside of the two columns 61, a moving plate 63 fixedly connected between the two limiting plates 64, a mounting base 66 fixedly connected to the outside of the other column 61, a rotating shaft 67 rotatably connected to the inside of the mounting base 66 and extending to its outside, an eccentric block 68 fixedly connected to one end of the rotating shaft 67, a gear 69 fixedly connected to the other end of the rotating shaft 67, and a toothed plate 610 fixedly connected to the lower surface of the moving plate 63. The eccentric block 68 is rotatably connected to the outside of the mounting base 66 and is in rolling contact with the outside of the abutment wheel 310. The transmission structure 6 is linked with the spindle box 15 through the transmission block 5 to realize the automated operation of the scraping cleaning structure 3 and the pneumatic cleaning structure 4, ensuring that the movement of the spindle box 15 can be efficiently transmitted to each cleaning structure to achieve synchronous cleaning.

[0034] The movable plate 63 is linked to the main spindle box 15 via the transmission block 5. The transmission block 5 is fixedly connected to the outside of the main spindle box 15. The top of the transmission block 5 abuts against the lower surface of the movable plate 63. A retaining spring 65 is fixedly connected between the top plate 62 and the limiting plate 64. The retaining spring 65 is connected around the outside of the column 61. The gear 69 and the toothed plate 610 mesh with each other. The toothed plate 610 is oscillatingly connected to the upper surface of the base 11 via the movable plate 63. A drive plate 7 for synchronous transmission of the pneumatic cleaning structure 4 is also fixedly connected to the outside of the movable plate 63. The end of the connecting rod 45 away from the connecting block 44 is rotatably connected to the drive plate 7 via a hinge.

[0035] When the spindle box 15 moves up and down, the moving plate 63 slides on the column 61 via the transmission block 5.

[0036] The sliding of the movable plate 63 causes the toothed plate 610 to move up and down, meshing with the gear 69, which in turn drives the rotating shaft 67 and the eccentric block 68 to rotate. The rotation of the eccentric block 68 is connected to the rolling contact wheel 310, providing power to the air pumping structure. At the same time, the sliding of the movable plate 63 also causes the drive plate 7 to move up and down, providing power to the pneumatic cleaning structure 4. The contact spring 65 helps the movable plate 63 return to its original position after it has moved.

[0037] In order to ensure the circulation of cooling water, in this embodiment, a cooling mechanism 9 is provided on the outside of the base 11. The cooling mechanism 9 includes a water tank 91 fixedly connected to the outside of the base 11, a delivery pump 92 fixedly installed on the top of the water tank 91, and a branch pipe 93 fixedly connected to the output end of the delivery pump 92. A nozzle is fixedly connected to the end of the branch pipe 93 away from the delivery pump 92. The nozzle is located on the outside of the spindle box 15.

[0038] The base 11 is provided with a filter assembly 8 extending into it. The filter assembly 8 includes a collection box 81 fixedly connected to the inside of the base 11, a filter screen 82 slidably connected to the inside of the collection box 81, and a return pipe 83 fixedly connected between the collection box 81 and the water tank 91.

[0039] The cooling mechanism 9 and the filter assembly 8 work together to achieve the recycling of cooling water, reducing the waste of cooling water. At the same time, the filter screen 82 can effectively filter debris in the coolant and keep the cooling water clean.

[0040] like Figures 1 to 9 As shown, the principle of the dual-spindle vertical machining center provided in this embodiment is as follows: The drive motor 22 is started by the controller, and the position of the clamping plate 25 is adjusted by the transmission rod 23 and the threaded block 24 to clamp the workpiece. The spindle box equipment 1 then begins to process the workpiece. The pushing structure scrapes away debris through the coordinated work of the first piston cylinder 31, the first sliding plate 32, the first push rod 33 and the scraper 35, while the air-pumping structure provides power to the pushing structure through the cooperation of the mounting cylinder 36, the plug plate 37, the first plug rod 38 and the abutment wheel 310. When the spindle box equipment 1 is processing, the transmission structure 6 drives the abutment wheel 310 to move up and down. The up and down movement of the abutment wheel 310 generates air pressure change in the mounting cylinder 36 through the cooperation of the first plug rod 38 and the plug plate 37. The air pressure change is transmitted to the first piston cylinder 31 through the air supply pipe 313, which pushes the first slide plate 32 and the first push rod 33 to move. The movement of the first push rod 33 drives the scraper 35 to scrape off the debris. The debris slides down the guide seat 29 to the discharge port 28. The feeding structure controls the opening and closing of the feeding port 28 through the cooperation of the baffle 43 and the connecting rod 45, while the air blowing structure pneumatically cleans the residual debris through the coordinated work of the second piston cylinder 46, the second slide plate 47, the second push rod 48 and the nozzle 411. The transmission structure 6 drives the drive plate 7 to move up and down. The up and down movement of the drive plate 7 drives the baffle 43 to slide on the guide rod 42 via the connecting rod 45, controlling the opening and closing of the discharge port 28. At the same time, the movement of the baffle 43, through the cooperation of the second push rod 48 and the second slide plate 47, generates a change in air pressure in the second piston cylinder 46. The change in air pressure is transmitted to the nozzle 411 through the connecting pipe 410, spraying out high-pressure gas to clean up the residual debris. The vertical movement of the spindle box device 1 is driven by the transmission block 5 to drive the moving plate 63 to slide on the column 61. The sliding of the moving plate 63 drives the toothed plate 610 to move up and down and mesh with the gear 69, driving the rotating shaft 67 and the eccentric block 68 to rotate. The rotation of the eccentric block 68 is connected to the rolling contact wheel 310 to provide power for the air pumping structure. At the same time, the sliding of the moving plate 63 also drives the drive plate 7 to move up and down, providing power for the pneumatic cleaning structure 4. The cooling mechanism 9 cools the spindle box 15 through nozzles, reducing the heat generated during processing. The filter assembly 8 filters and recycles the cooling water, enabling its reuse.

[0041] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. Any method that can achieve its beneficial effect can be implemented. In addition, the electrical components in this embodiment are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Those skilled in the art can control the electrical components through simple programming. Moreover, the existing disclosed power connection technology is also common knowledge in the field. Therefore, the specific structural composition and working principle will not be described in detail in this embodiment.

[0042] 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. A dual-spindle vertical machining center, characterized in that: The device includes a spindle box (1) and a fixing mechanism (2) disposed outside the spindle box (1). The top of the spindle box (1) is provided with a scraping and cleaning structure (3) for scraping the debris inside the fixing mechanism (2). The inside of the fixing mechanism (2) is also provided with a pneumatic cleaning structure (4) for cleaning the debris left over from the scraping process. The outside of the spindle box (1) is provided with a transmission structure (6) and a transmission block (5) that are linked with the scraping and cleaning structure (3) and the pneumatic cleaning structure (4) respectively. The spindle box device (1) consists of a base (11), a fixed seat (12), a hydraulic cylinder (13), a connecting seat (14), and a spindle box (15); The scraping cleaning structure (3) includes two pushing structures, and an air pumping structure is provided between the two pushing structures. The pushing structure includes a first piston cylinder (31) fixedly connected to the outside of the mounting box (21), a first sliding plate (32) slidably connected to the inside of the first piston cylinder (31), a first push rod (33) fixedly connected to the outside of the first sliding plate (32), and a scraper (35) fixedly connected to one end of the first push rod (33). The pneumatic cleaning structure (4) includes a feeding structure and an air blowing structure. The feeding structure includes a connecting ear (41) fixedly connected to the inner wall of the base (11), a guide rod (42) fixedly connected to the inside of the connecting ear (41), a baffle (43) slidably connected to the outside of the guide rod (42), a connecting block (44) fixedly connected to the back of the baffle (43), and a connecting rod (45) hinged to the top of the connecting block (44). The air-pressing structure includes a mounting cylinder (36) fixedly connected to the top of the base (11), a stopper plate (37) slidably connected inside the mounting cylinder (36), a first stopper rod (38) fixedly connected to the top of the stopper plate (37), an abutment wheel (310) rotatably connected to the top of the first stopper rod (38) via a hinge seat, a second return spring (39) fixedly connected between the mounting cylinder (36) and the abutment wheel (310), and an air inlet pipe (311) and a three-way pipe (312) fixedly connected to the outside of the mounting cylinder (36). The two sets of the pushing structure are symmetrically distributed on the outside of the mounting box (21) and extend into its interior. The two sets of first piston cylinders (31) are fixedly connected to the three-way pipe (312) via air supply pipe (313). The transmission structure (6) includes two columns (61) fixedly connected to the top of the base (11), a top plate (62) fixedly connected to the top of the two columns (61), a limiting plate (64) slidably connected to the outside of the two columns (61), a moving plate (63) fixedly connected between the two limiting plates (64), a mounting base (66) fixedly connected to the outside of the other column (61), a rotating shaft (67) rotatably connected to the inside of the mounting base (66) and extending to the outside of it, an eccentric block (68) fixedly connected to one end of the rotating shaft (67), a gear (69) fixedly connected to the other end of the rotating shaft (67), and a toothed plate (610) fixedly connected to the lower surface of the moving plate (63). The eccentric block (68) is rotatably connected to the outside of the mounting base (66) and is in rolling connection with the outside of the abutment wheel (310). The movable plate (63) is linked to the spindle box (15) through the transmission block (5). The transmission block (5) is fixedly connected to the outside of the spindle box (15). The top of the transmission block (5) abuts against the lower surface of the movable plate (63). A retaining spring (65) is fixedly connected between the top plate (62) and the limiting plate (64). The retaining spring (65) is connected around the outside of the column (61). The gear (69) and the toothed plate (610) mesh with each other. The toothed plate (610) is swayed and connected to the upper surface of the base (11) through the movable plate (63). A drive plate (7) for synchronous transmission of the pneumatic cleaning structure (4) is also fixedly connected to the outside of the movable plate (63). The end of the connecting rod (45) away from the connecting block (44) is rotatably connected to the drive plate (7) through the hinge.

2. The dual-spindle vertical machining center according to claim 1, characterized in that: The fixing mechanism (2) includes a fixing component and a protective component. The fixing component includes a mounting box (21) fixedly connected to the top of the base (11), a drive motor (22) fixedly installed outside the mounting box (21), a transmission rod (23) fixedly connected to the output shaft of the drive motor (22), a threaded block (24) threadedly connected to the left and right sides of the transmission rod (23), and a clamping plate (25) fixedly connected to the top of the threaded block (24). The threads on the two sides of the transmission rod (23) are arranged in opposite directions. The protective assembly includes a first telescopic bellows (26) fixedly connected between the two threaded blocks (24), a second telescopic bellows (27) fixedly connected between the threaded blocks (24) and the mounting box (21), a discharge port (28) opened inside the mounting box (21), and a flow guide seat (29) fixedly connected inside the mounting box (21).

3. A dual-spindle vertical machining center according to claim 2, characterized in that: A first return spring (34) is fixedly connected between the inner wall of the first slide plate (32) and the first piston cylinder (31). The first push rod (33) is slidably connected to the inside of the first piston cylinder (31) through the first slide plate (32) and extends to its outside. The inside of the mounting box (21) is provided with a transmission port that is compatible with the first push rod (33). The scraper (35) is distributed in an inclined manner inside the mounting box (21) and abuts against the top of the guide seat (29). The first return spring (34) is connected around the outside of the first push rod (33).

4. A dual-spindle vertical machining center according to claim 1, characterized in that: The number of connecting ears (41) is four, and the number of guide rods (42) is two sets. The two sets of guide rods (42) are symmetrically distributed between the four connecting ears (41). The baffle (43) abuts against the lower surface of the discharge port (28). The outer diameter of the baffle (43) is adapted to the inner diameter of the discharge port (28). The baffle (43) is slidably connected to the outside of the discharge port (28) through the connecting rod (45).

5. A dual-spindle vertical machining center according to claim 1, characterized in that: The blowing structure includes a nozzle (411) fixedly installed outside the scraper (35), a second piston cylinder (46) fixedly connected to the inner wall of the base (11), a second sliding plate (47) slidably connected inside the second piston cylinder (46), a second push rod (48) fixedly connected between the second sliding plate (47) and the connecting block (44), an air extraction pipe (49) fixedly connected to the outside of the second piston cylinder (46), and a connecting pipe (410) fixedly connected between the second piston cylinder (46) and the nozzle (411). There are two nozzles (411), which are symmetrically distributed on the outside of the two sets of scrapers (35). The second sliding plate (47) is slidably connected to the inside of the second piston cylinder (46) through the connecting block (44).

6. A dual-spindle vertical machining center according to claim 1, characterized in that: A cooling mechanism (9) is provided on the outside of the base (11). The cooling mechanism (9) includes a water tank (91) fixedly connected to the outside of the base (11), a delivery pump (92) fixedly installed on the top of the water tank (91), and a branch pipe (93) fixedly connected to the output end of the delivery pump (92). A nozzle is fixedly connected to one end of the branch pipe (93) away from the delivery pump (92). The nozzle is located on the outside of the main shaft box (15).

7. A dual-spindle vertical machining center according to claim 6, characterized in that: The base (11) is provided with a filter assembly (8) extending into it. The filter assembly (8) includes a collection box (81) fixedly connected to the inside of the base (11), a filter screen (82) slidably connected to the inside of the collection box (81), and a return pipe (83) fixedly connected between the collection box (81) and the water tank (91).

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