Multi-station horizontal numerical control boring, milling and turning combined machine tool

Abstract

The invention relates to the technical field of combined machine tools, in particular to a multi-station horizontal numerical control boring, milling and turning combined machine tool which comprises a machine tool body, a movable stand column, a lifting type spindle box, a spindle, a milling cutter, a boring cutter, a drilling cutter and a three-station material moving structure connected with the machine tool body. The first motor is connected with a first screw rod, three groups of threaded clamping parts are mounted on the first screw rod, and the threaded clamping parts are connected with a rotating workbench; and the preassembled feeding and discharging mechanism is connected with the machine tool body. By means of the mode that the three-station feeding structure and the preassembling feeding and discharging mechanism are matched with each other, feeding and discharging operation is automatically conducted, so that the three-station feeding and discharging mechanism is suitable for conducting ordered boring, milling and turning on a set of workpieces, three sets of workpieces can be machined at the same time, the application range of the three-station feeding and discharging mechanism is widened, and the three-station feeding and discharging mechanism is also beneficial to being used with the maximum efficiency; the processing efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of combination machine tool technology, specifically a multi-station horizontal CNC boring, milling and turning combination machine tool. Background Technology

[0002] When workpieces need to be turned, milled, or boring, the existing processing method is to process them separately using lathes, milling machines, and boring machines. In order to avoid multiple clamping operations, modern technicians have invented multi-station horizontal CNC boring, milling, and turning combination machine tools, which integrate lathes, milling machines, and boring machines and use a set of long-stroke moving worktables to move the workpieces. That is, a set of worktables, but with three sets of stations.

[0003] Some existing multi-station horizontal CNC boring, milling, and turning combination machine tools adopt a three-station design, which means that one machine tool is equipped with three sets of spindle boxes and matching tools, so that one station can perform one type of machining on the workpiece. Although this machining method can indeed achieve the integration of boring, milling, and turning functions and avoid multiple clamping, when it is necessary to perform three types of machining at the same time, since this machine tool can only limit the workpiece at one of the three stations at a time, only one set of stations can actually be in the machining state at the same time, and the other two stations cannot be used at the same time. At the same time, existing multi-station horizontal CNC boring, milling, and turning combination machine tools are not convenient for automatic loading and unloading, resulting in low machining efficiency and limited applicability. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-station horizontal CNC boring, milling and turning combination machine tool 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 multi-station horizontal CNC boring, milling, and turning combination machine tool includes a machine bed, on which three sets of linearly arranged movable columns are mounted. Each set of movable columns is equipped with a lifting spindle head, and each lifting spindle head is connected to a spindle. The three spindles are respectively connected to a milling cutter, a boring tool, and a drilling tool. The machine tool also includes:

[0007] A three-way material transfer structure connected to the machine tool bed includes a rail fixedly connected to the machine tool bed, a first motor fixedly connected to the rail, a first screw fixedly connected to the output shaft of the first motor, a closed assembly rotatably connected to the rail, and three sets of threaded clamping parts installed on the first screw. Each set of threaded clamping parts is connected to a rotating worktable, and the threaded clamping parts are slidably installed in the rail.

[0008] A pre-loading and unloading mechanism connected to the machine tool bed includes three sets of movable tensioning parts installed on the machine tool bed. The machine tool bed is connected to three sets of lifting and storing parts. The lifting and storing parts are movably connected to a movable frame. Multiple sets of pre-clamping and limiting parts are installed on the movable frame.

[0009] As a further improvement of the present invention: the threaded clamping part includes a sliding table fixedly connected to the rotating worktable, the sliding table being slidably installed in the track, the sliding table being fixedly connected to a dual-output shaft motor, the output end of the dual-output shaft motor being fixedly connected to a second screw, the second screw being threadedly connected to a clamping frame slidably connected to the sliding table, and the clamping frame being threadedly connected to the first screw.

[0010] As a further improvement of the present invention: the enclosure component includes a cover plate movably connected to the track, the cover plate is fixedly connected to a rotating support seat, the rotating support seat is rotatably connected to a first screw, and the cover plate is combined with multiple sets of first bolts threadedly connected to the track.

[0011] As a further improvement of the present invention: the lifting storage unit includes a pedal fixedly connected to the rotating worktable, a lower embedded shell fixedly installed at the bottom of the pedal, a plurality of first active telescopic rods fixedly installed inside the lower embedded shell, the plurality of first active telescopic rods being fixedly connected to a lifting platform, a concave limiting plate fixedly connected to the top of the lifting platform, the concave limiting plate being movably connected to a moving frame, the lifting platform being slidably installed inside the lower embedded shell, a first active telescopic frame fixedly installed inside the lifting platform, the first active telescopic frame being movably connected to the moving frame, and the moving frame being movably connected to the lifting platform.

[0012] As a further improvement of the present invention: the mobile frame includes a frame, a plurality of casters are installed at the lower end of the frame, the frame is movably connected to a first active telescopic frame, the frame is movably connected to a concave limiting plate, the frame is fixedly connected to a plurality of slot frames, the slot frames are provided with a plurality of linearly arranged first T-shaped slots, the slot frames are movably connected to a pre-clamping limiting part, and the pre-clamping limiting part is connected to the first T-shaped slot.

[0013] As a further improvement of the present invention: the pre-clamping limiting part includes a support platform movably connected to the slot frame, a plurality of T-shaped strips slidably connected to the first T-shaped slot are fixedly installed at the bottom of the support platform, a plurality of clamps are installed on the support platform, four sets of symmetrically arranged rotating limiting seats are fixedly connected to the support platform, a threaded sleeve is rotatably connected to the rotating limiting seat, a multi-faceted sleeve is coaxially fixedly connected to the threaded sleeve, a third screw is threadedly connected to the threaded sleeve, and a friction head disposed in the first T-shaped slot is fixedly connected to the third screw, and the friction head is slidably connected to the support platform.

[0014] As a further improvement of the present invention: the movable tensioning part includes two sets of cantilever arms fixedly connected to the machine tool bed. Each cantilever arm is fixedly connected to a second active telescopic frame. The moving end of the second active telescopic frame is fixedly connected to a hanging rail. The hanging rail is fixedly connected to a second motor. The output shaft of the second motor is fixedly connected to a fourth screw. The fourth screw is threadedly connected to a transverse frame. The transverse frame is fixedly connected to a third active telescopic frame. The moving end of the third active telescopic frame is fixedly connected to an electromagnet. The transverse frame is fixedly connected to two sets of guide shells. A third motor is fixedly installed inside each guide shell. The output shaft of the third motor is fixedly connected to a prism. The prism is slidably connected to a hexagonal sleeve. The hexagonal sleeve is rotatably connected to a rotary joint. The rotary joint is fixedly connected to a second spring. The second spring is fixedly connected to a pressure sensor. The pressure sensor is fixedly connected to the guide shell. The rotary joint is slidably connected to multiple sets of guide strips. The guide strips are slidably connected to the guide shell.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] When three sets of workpieces need to be processed simultaneously, a movable frame is installed on the three sets of lifting storage sections. This movable frame carries multiple sets of pre-clamping limiting sections, each with a workpiece fixed to it. The three sets of movable tensioning sections detach the pre-clamping limiting sections from the three movable frames, allowing the workpiece to move with the pre-clamping limiting sections to the rotating worktable, where the pre-clamping limiting sections are then fixed. The rotating worktable then rotates the pre-clamping limiting sections to adjust the workpiece position. Subsequently, the three sets of movable columns move, and the lifting spindle box moves up and down along the movable columns, driving the spindle to rotate so that the milling cutter... The boring bar and drilling tool all rotate and perform machining operations on the workpiece. During the machining process, as the workpiece is completed, the moving tensioning part moves the pre-clamping limit part, which is loaded with the machined workpiece, back onto the moving frame. Then, the lifting storage part adjusts the height of the moving frame to facilitate the moving tensioning part moving the pre-clamping limit part to another height, thereby achieving the effect of simultaneous boring and milling turning. This maximizes the utilization of the machine tool for boring and milling turning. If it is only necessary to use the machine tool to process a group of workpieces at least once in sequence, the enclosed assembly is removed from the rail to expose an opening at one end of the rail, and the set of threaded clamping parts adjacent to the first motor is loosened. The first motor drives the first screw to rotate, causing the threaded clamping part to release the first screw. The first screw then drives the other two sets of threaded clamping parts to move along the track towards the track opening. The threaded clamping parts that have moved to the track are then removed. The first motor then drives the first screw to rotate again, allowing the threaded clamping parts remaining on the track to re-engage with the threads on the first screw. As one set of moving tensioning parts is removed from a set of moving frames, the pre-clamping limiting parts are moved onto the rotating worktable along with the pre-clamping limiting parts, and the pre-clamping limiting parts are fixed to the rotating worktable. The rotating worktable then drives the pre-clamping limiting parts to rotate. The first motor drives the first screw to rotate, and the first screw drives the threaded clamping part to move along the track, thereby adjusting the position of the rotating worktable. As the workpiece moves to the machining position, the movable column moves, and the lifting spindle box moves up and down along the movable column. The adjacent lifting spindle box drives the spindle to rotate, so that one of the milling cutters, boring cutters, and drilling tools can machine the workpiece. After the workpiece is machined, the movable tensioning part moves the pre-clamping limit part containing the machined workpiece back to the movable frame. Then, the lifting storage part adjusts the height of the movable frame to facilitate the movable tensioning part to move the pre-clamping limit part to another height. This invention uses a pre-loading and unloading mechanism to automate loading and unloading. The three-workpiece displacement structure works in conjunction with the pre-loading and unloading mechanism, allowing for adjustments to the three-workpiece displacement structure. This makes the invention suitable for sequential boring, milling, and turning of a set of workpieces, or for simultaneously machining three sets of workpieces, thus expanding the applicability of the invention and maximizing efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention when a workpiece is installed.

[0018] Figure 2 For the present invention Figure 1 A magnified view of a portion of point A in the middle.

[0019] Figure 3 For the present invention Figure 1 Enlarged view of part B in the middle

[0020] Figure 4 This is a three-dimensional structural diagram of the present invention from another perspective when the workpiece is installed.

[0021] Figure 5 This is a three-dimensional structural diagram of the three-way displacement structure of the present invention without the installation of the elastic band.

[0022] Figure 6 This is a three-dimensional structural diagram of the three-way displacement structure of the present invention without the elastic band installed, from another perspective.

[0023] Figure 7 This is a three-dimensional structural diagram of the threaded clamping part and the rotating worktable of the present invention.

[0024] Figure 8 This is a three-dimensional structural diagram of the threaded clamping part of the present invention.

[0025] Figure 9 This is a schematic diagram of the internal structure of the lifting storage unit, the moving frame, and the pre-clamping limiting unit of the present invention.

[0026] Figure 10 This is a three-dimensional structural diagram of the interaction between the movable frame and the pre-clamping limiting part of the present invention.

[0027] Figure 11 This is a three-dimensional structural diagram of the pre-clamping limiting part of the present invention;

[0028] Figure 12 This is a three-dimensional structural diagram of the cooperation between the lifting platform and the first active telescopic frame of the present invention.

[0029] Figure 13 This is a three-dimensional structural diagram of the movable tensioning part of the present invention.

[0030] Figure 14 This is a three-dimensional structural diagram of the guide shell, third motor, prism, hexagonal sleeve, rotary joint, second spring, pressure sensor, and guide bar of the present invention in cooperation with each other.

[0031] Figure 15 This is a schematic diagram of the internal three-dimensional structure of the rotating limiting seat, threaded sleeve, multi-faceted sleeve, third screw, and friction head of the present invention.

[0032] Figure 16 This is a three-dimensional structural diagram of the interaction between the rotary joint and the guide bar of the present invention.

[0033] In the diagram: 1. Machine bed; 2. Casters; 3. Movable column; 4. Lifting spindle box; 5. Spindle; 6. Milling cutter; 7. Boring cutter; 8. Drilling tool; 9. Three-way displacement structure; 10. Track; 11. First motor; 12. First screw; 13. Enclosed assembly; 14. Threaded clamping part; 15. Rotating worktable; 16. Pre-loading and unloading mechanism; 17. Movable tensioning part; 18. Lifting storage part; 19. Moving frame; 20. Pre-clamping limiting part; 21. Sliding table; 22. Dual-axis output motor; 23. Second screw; 24. Clamping frame; 25. Cover plate; 26. Rotating support base; 27. First bolt; 28. Pedal; 29. ​​Lower embedded shell; 30. First active telescopic rod; 31. Lifting table; 32 33. Concave limiting plate; 34. First active telescopic frame; 35. Chassis; 36. Slot frame; 37. First T-slot; 38. Support platform; 39. T-strip; 40. Clamp; 41. Rotating limiting seat; 42. Threaded sleeve; 43. Multi-faceted sleeve; 44. Third screw; 45. Support rod; 46. Cantilever; 47. Second active telescopic frame; 48. Hanging rail; 49. Second motor; 50. Fourth screw; 51. Transverse frame; 52. Third active telescopic frame; 53. Insert frame; 54. Guide shell; 55. Third motor; 56. Prism; 57. Hexagonal sleeve; 58. Rotary joint; 59. Second spring; 60. Pressure sensor; 61. Guide strip; 62. Through hole; 63. Friction head; 64. Hook; 65. Elastic band. Detailed Implementation

[0034] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0035] Example 1, see Figures 1 to 16 As shown, a multi-station horizontal CNC boring, milling, and turning combination machine tool includes a machine bed 1. Three linearly arranged movable columns 3 are mounted on the machine bed 1. The movable columns 3 have the function of actively moving relative to the machine bed 1. The movement power of the movable columns 3 can be provided by an active telescopic component or by a lead screw and motor (this is conventional technology in the field and will not be elaborated further). Each movable column 3 is equipped with a lifting spindle box 4, and each lifting spindle box 4 is connected to a spindle 5. The lifting spindle box 4 integrates an active telescopic system for adjusting the position of the spindle 5. The three spindles 5 are respectively connected to a milling cutter 6, a boring tool 7, and a drilling tool 8. The machine tool also includes:

[0036] A three-way material transfer structure 9 is connected to the machine tool bed 1. The three-way material transfer structure 9 includes a track 10 fixedly connected to the machine tool bed 1. A first motor 11 is fixedly connected to the track 10. A first screw 12 is fixedly connected to the output shaft of the first motor 11. A closed assembly 13, which is combined with the track 10, is rotatably connected to the first screw 12. Three sets of threaded clamping parts 14 are installed on the first screw 12. Each set of threaded clamping parts 14 is connected to a rotating worktable 15. Multiple sets of T-slots are provided on the surface of the rotating worktable 15 (this is conventional technology in this field and will not be described in detail here). The threaded clamping parts 14 are slidably installed in the track 10.

[0037] The pre-loading and unloading mechanism 16 is connected to the machine tool bed 1. The pre-loading and unloading mechanism 16 includes three sets of movable tensioning parts 17 installed on the machine tool bed 1. The machine tool bed 1 is connected to three sets of lifting storage parts 18. The lifting storage parts 18 are movably connected to a movable frame 19. Multiple sets of pre-clamping limiting parts 20 are installed on the movable frame 19.

[0038] When three sets of workpieces need to be processed simultaneously, a movable frame 19 is installed on the three sets of lifting storage sections 18. The movable frame 19 carries multiple sets of pre-clamping limiting sections 20, each with a workpiece fixed on it. The three sets of movable tensioning sections 17 remove the pre-clamping limiting sections 20 from the three sets of movable frames 19, allowing the workpiece to move with the pre-clamping limiting sections 20 to the rotating worktable 15 and fixing the pre-clamping limiting sections 20 to the rotating worktable 15. Then, the rotating worktable 15 drives the pre-clamping limiting sections 20 to rotate, adjusting the position of the workpiece. Subsequently, the three sets of movable columns 3 move, and the lifting spindle box 4 moves up and down along the movable columns 3, while the lifting spindle box 4 drives the spindle 5 to rotate, so that the milling cutter 6 and boring bar 6 can rotate. Both the cutting tool 7 and the drilling tool 8 rotate and perform machining operations on the workpiece. During this process, as the workpiece is finished, the movable tensioning part 17 moves the pre-clamping limiting part 20, which is loaded with the finished workpiece, back onto the moving frame 19. Then, the lifting storage part 18 adjusts the height of the moving frame 19 to facilitate the movable tensioning part 17 moving the pre-clamping limiting part 20 to another height, thereby achieving the effect of simultaneous boring and milling turning to maximize the use of the machine tool for boring and milling turning. If it is only necessary to use the machine tool to process a group of workpieces at least once, the enclosed assembly 13 is removed from the rail 10 to expose an opening at one end of the rail 10. The set of threaded clamping parts 14 adjacent to the first motor 11 is then loosened, allowing the threaded clamping parts 14 to... The first screw 12 is released, and then the first motor 11 drives the first screw 12 to rotate. The first screw 12 drives the other two sets of threaded clamping parts 14 to move along the track 10 toward the opening of the track 10. Then, the threaded clamping parts 14 that have moved to the track 10 are removed. After that, the first motor 11 drives the first screw 12 to rotate so that the threaded clamping parts 14 remaining on the track 10 can re-engage with the threads on the first screw 12. As a set of moving tensioning parts 17 respectively unload the pre-clamping limiting parts 20 from a set of moving frames 19, the workpiece moves with the pre-clamping limiting parts 20 to the rotating worktable 15 and the pre-clamping limiting parts 20 are fixed on the rotating worktable 15. Then, the rotating worktable 15 drives the pre-clamping limiting parts 20 to rotate. The first motor 11 drives the first screw 12 to rotate, and the first screw 12 drives the threaded clamping part 14 to move along the track 10, thereby adjusting the position of the rotating worktable 15. As the workpiece moves to the processing position, the movable column 3 moves, and the lifting spindle box 4 moves up and down along the movable column 3. The adjacent lifting spindle box 4 drives the spindle 5 to rotate, so that one of the milling cutter 6, boring cutter 7, and drilling tool 8 processes the workpiece. After the workpiece is processed, the movable tensioning part 17 moves the pre-clamping limiting part 20, which is loaded with the processed workpiece, back to the movable frame 19. Then the lifting storage part 18 adjusts the height of the movable frame 19, so that the movable tensioning part 17 can move the pre-clamping limiting part 20 to another height.The present invention utilizes a pre-installed loading and unloading mechanism 16 to facilitate automated loading and unloading. Furthermore, the three-workpiece displacement structure 9 works in conjunction with the pre-installed loading and unloading mechanism 16. Adjustments to the three-workpiece displacement structure 9 allow the present invention to be used for orderly boring, milling, and turning of a group of workpieces, or to process three groups of workpieces simultaneously. This expands the applicability of the present invention and maximizes its efficiency, thereby improving processing efficiency.

[0039] In one embodiment, the threaded clamping part 14 includes a sliding stage 21 fixedly connected to the rotating worktable 15. The sliding stage 21 is slidably mounted within the track 10. A dual-axis motor 22 is fixedly connected to the sliding stage 21. A second screw 23 is fixedly connected to the output end of the dual-axis motor 22. The second screw 23 is threadedly connected to a clamping frame 24 slidably connected to the sliding stage 21. The clamping frame 24 is threadedly connected to a first screw 12. The dual-axis motor 22 drives the second screw 23 to rotate, and the rotating second screw 23 drives the clamping frame 24 to move. As the clamping frame 24 disengages from the first screw 12, the power connection between the first screw 12 and the threaded clamping part 14 is disconnected. When the clamping frame 24 engages with the first screw 12, the rotating first screw 12 drives the clamping frame 24 to move. The clamping frame 24 moves the rotating worktable 15 by driving the sliding stage 21 to move.

[0040] In one embodiment, the enclosure assembly 13 includes a cover plate 25 movably connected to the track 10. The cover plate 25 is fixedly connected to a rotating support 26, which is rotatably connected to a first screw 12. The cover plate 25 is also connected with multiple sets of first bolts 27 threadedly connected to the track 10. The rotating support 26 provides support for the rotating first screw 12, and by disassembling the first screw 12, the restriction of the first screw 12 on the cover plate 25 is released. Then, the cover plate 25 and the rotating support 26 are removed together, providing space for disassembling the rotating worktable 15 and the threaded clamping part 14.

[0041] In one embodiment, the lifting storage unit 18 includes a pedal 28 fixedly connected to the rotating worktable 15. The pedal 28 is fixedly connected to a control console. A lower recess 29 is fixedly installed at the bottom of the pedal 28. Multiple sets of first active telescopic rods 30 are fixedly installed inside the lower recess 29. The multiple sets of first active telescopic rods 30 are fixedly connected to a lifting platform 31. A concave limiting plate 32 is fixedly connected to the top of the lifting platform 31. The concave limiting plate 32 is movably connected to a moving frame 19. The lifting platform 31 is slidably installed inside the lower recess 29. A first active telescopic frame 33 is fixedly installed inside the lifting platform 31. The first active telescopic frame 33 is movably connected to the moving frame 19. The moving frame 19 is movably connected to the lifting platform 31. Under normal circumstances, the pedal 28 is installed on the ground and the lower casing 29 is buried underground. Driven by the first active telescopic rod 30, the lifting platform 31 moves up and down to adjust the height of the moving frame 19. Since the first active telescopic rod 33 extends into the moving frame 19 that abuts against the concave limiting plate 32, the relative position of the moving frame 19 and the lifting platform 31 is limited.

[0042] In one embodiment, the movable frame 19 includes a chassis 34 with multiple casters 2 mounted on its lower end. The chassis 34 is movably connected to a first active telescopic frame 33 and a concave limiting plate 32. Multiple slotted frames 35 are fixedly connected to the chassis 34. Each slotted frame 35 has multiple linearly arranged first T-slots 36, the cross-section of which is the same as the cross-section of the T-slots on the rotating worktable 15. The slotted frame 35 is movably connected to a pre-clamping limiting part 20, which is connected to the first T-slots 36. The casters 2 provide support for the movement of the chassis 34, the slotted frames 35 provide support for the pre-clamping limiting part 20, and the first T-slots 36 provide guidance for the movement of the pre-clamping limiting part 20, thus providing support for the pre-clamping limiting part 20 as it moves to the rotating worktable 15.

[0043] In one embodiment, the pre-clamping limiting part 20 includes a support platform 37 movably connected to the slot frame 35. The support platform 37 has four sets of symmetrically arranged through holes 61. Multiple sets of T-shaped strips 38 that are slidably connected to the first T-shaped groove 36 are fixedly installed at the bottom of the support platform 37. Multiple sets of clamps 39 are installed on the support platform 37. Four sets of symmetrically arranged rotating limiting seats 40 are fixedly connected to the support platform 37. The rotating limiting seats 40 are rotatably connected to threaded sleeves 41. The threaded sleeves 41 are coaxially fixedly connected to multi-faceted sleeves 42. The threaded sleeves 41 are threadedly connected to a third screw 43. The third screw 43 is fixedly connected to a friction head 62 disposed in the first T-shaped groove 36. The friction head 62 is slidably connected to the support platform 37. According to the shape and processing type of the workpiece, the fixture 39 that matches the workpiece is selected and installed on the support table 37. Then the workpiece is clamped by the fixture 39, thereby achieving the effect of pre-clamping the workpiece. There is no need for personnel to repeatedly perform workpiece fixing operations on the rotating worktable 15. When a set of first T-slots 36 are aligned with a set of T-slots on the rotating worktable 15, the movable tensioning part 17 moves the support table 37 by inserting into the through hole 61, so that the movable tensioning part 17 slides into the T-slot on the rotating worktable 15. Then the movable tensioning part 17 drives the polygonal sleeve 42 to rotate, so that the threaded sleeve 41 rotates and drives the third screw 43 to move. At this time, the third screw 43 drives the friction head 62 to abut against the groove wall of the T-slot on the rotating worktable 15. At the same time, the moving friction head 62 moves relative to the support table 37.

[0044] In one embodiment, multiple sets of hooks 63 are fixedly installed on both the rotating worktable 15 and the track 10. The hooks 63 are engaged with elastic bands 64 for blocking debris. The elastic bands 64 are elastic and are used to prevent debris from entering the track 10.

[0045] Example 2, based on Example 1, see [link / reference] Figure 1 , Figure 2 , Figure 13The movable tensioning part 17 includes two sets of cantilever arms 45 fixedly connected to the machine tool bed 1. A second active telescopic frame 46 is fixedly connected to each cantilever arm 45. A hanging rail 47 is fixedly connected to the moving end of the second active telescopic frame 46. Multiple sets of support rods 44 are slidably connected to the hanging rail 47 and slidably connected to the cantilever arms 45. A second motor 48 is fixedly connected to the hanging rail 47. A fourth screw 49 is fixedly connected to the output shaft of the second motor 48. A transverse frame 50 is threadedly connected to the fourth screw 49. A third active telescopic frame 51 is fixedly connected to the transverse frame 50. The moving end of the third active telescopic frame 51 is fixedly connected to... The transverse frame 50 has a bracket 52, and two sets of guide shells 53 are fixedly connected to the transverse frame 50. A third motor 54 is fixedly installed inside the guide shell 53. The output shaft of the third motor 54 is fixedly connected to a prism 55. A hexagonal sleeve 56 is slidably connected to the prism 55. A rotary joint 57 is rotatably connected to the hexagonal sleeve 56. A second spring 58 is fixedly connected to the rotary joint 57. A pressure sensor 59 is fixedly connected to the second spring 58. The pressure sensor 59 is fixedly connected to the guide shell 53. Multiple sets of guide bars 60 are slidably connected to the rotary joint 57. The guide bars 60 are slidably connected to the guide shell 53. The second active telescopic frame 46 drives the hanging rail 47 to move up and down. The second motor 48 drives the fourth screw 49 to rotate, causing the transverse frame 50 to move along the hanging rail 47. The transverse frame 50 drives the third active telescopic frame 51 to move above the support platform 37. The third active telescopic frame 51 drives the insert 52 to insert into the through hole 61. Then the moving transverse frame 50 moves along the hanging rail 47, and the transverse frame 50 drives the third active telescopic frame 51 to move, so that the insert 52 moves through the through hole 61 to move the support platform 37. When it is necessary to rotate the polygonal sleeve 42, the third active telescopic frame 51 retracts, and the second active telescopic frame 46 drives the hanging rail 47 to move down, so that the hexagonal sleeve 56 engages with the polygonal sleeve 42. During the engagement process, the third motor 54 drives the prism 55 to... When the hexagonal sleeve 56 rotates, it rotates relative to the rotating joint 57. If the hexagonal sleeve 56 does not align with the polygonal sleeve 42, the second spring 58 is over-compressed, and the pressure sensor 59 detects an abnormally high pressure. The control console determines that the hexagonal sleeve 56 is not aligned with the polygonal sleeve 42. As the hexagonal sleeve 56 aligns with the polygonal sleeve 42, the compression of the second spring 58 is within a preset threshold. The control console determines that the hexagonal sleeve 56 is aligned with the polygonal sleeve 42 based on the pressure feedback signal from the pressure sensor 59. Then, the third motor 54 drives the hexagonal sleeve 56 to rotate via the prism 55, thereby rotating the polygonal sleeve 42. This facilitates precise control of the number of rotations of the polygonal sleeve 42 and accurate judgment of the alignment status between the hexagonal sleeve 56 and the polygonal sleeve 42.

[0046] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A multi-station horizontal CNC boring, milling, and turning combination machine tool, comprising a machine bed, wherein three sets of linearly arranged movable columns are mounted on the machine bed, each set of movable columns is equipped with a lifting spindle head, each lifting spindle head is connected to a spindle, and the three sets of spindles are respectively connected to a milling cutter, a boring tool, and a drilling tool, characterized in that, Also includes: A three-way material transfer structure connected to the machine tool bed includes a rail fixedly connected to the machine tool bed, a first motor fixedly connected to the rail, a first screw fixedly connected to the output shaft of the first motor, a closed assembly rotatably connected to the rail, and three sets of threaded clamping parts installed on the first screw. Each set of threaded clamping parts is connected to a rotating worktable, and the threaded clamping parts are slidably installed in the rail. A pre-loading and unloading mechanism connected to the machine tool bed includes three sets of movable tensioning parts installed on the machine tool bed. The machine tool bed is connected to three sets of lifting and storing parts. The lifting and storing parts are movably connected to a movable frame. Multiple sets of pre-clamping and limiting parts are installed on the movable frame.

2. The multi-station horizontal CNC boring, milling, and turning combination machine tool according to claim 1, characterized in that, The threaded clamping part includes a sliding table fixedly connected to the rotating worktable. The sliding table is slidably installed in the track. A dual-output shaft motor is fixedly connected to the sliding table. A second screw is fixedly connected to the output end of the dual-output shaft motor. The second screw is threadedly connected to a clamping frame that is slidably connected to the sliding table. The clamping frame is threadedly connected to the first screw.

3. The multi-station horizontal CNC boring, milling, and turning combination machine tool according to claim 1, characterized in that, The enclosure assembly includes a cover plate movably connected to the track, a rotating support seat fixedly connected to the cover plate, the rotating support seat being rotatably connected to a first screw, and multiple sets of first bolts threadedly connected to the track.

4. A multi-station horizontal CNC boring, milling, and turning combination machine tool according to claim 1, characterized in that, The lifting and storage unit includes a pedal fixedly connected to a rotating worktable. A lower embedded shell is fixedly installed at the bottom of the pedal. Multiple sets of first active telescopic rods are fixedly installed inside the lower embedded shell. The multiple sets of first active telescopic rods are fixedly connected to a lifting platform. A concave limiting plate is fixedly connected to the top of the lifting platform. The concave limiting plate is movably connected to a moving frame. The lifting platform is slidably installed inside the lower embedded shell. A first active telescopic frame is fixedly installed inside the lifting platform. The first active telescopic frame is movably connected to the moving frame. The moving frame is movably connected to the lifting platform.

5. A multi-station horizontal CNC boring, milling, and turning combination machine tool according to claim 4, characterized in that, The mobile frame includes a chassis, with multiple sets of casters installed at the lower end of the chassis. The chassis is movably connected to a first active telescopic chassis and a concave limiting plate. Multiple sets of slotted frames are fixedly connected to the chassis. Multiple sets of first T-shaped slots are linearly arranged in the slotted frames. The slotted frames are movably connected to a pre-clamping limiting part, which is connected to the first T-shaped slots.

6. A multi-station horizontal CNC boring, milling, and turning combination machine tool according to claim 5, characterized in that, The pre-clamping limiting part includes a support platform movably connected to the slot frame. Multiple sets of T-shaped strips that are slidably connected to the first T-slot are fixedly installed at the bottom of the support platform. Multiple sets of clamps are installed on the support platform. Four sets of symmetrically arranged rotating limiting seats are fixedly connected to the support platform. Threaded sleeves are rotatably connected to the rotating limiting seats. Multi-faceted sleeves are coaxially fixedly connected to the threaded sleeves. A third screw is threadedly connected to the threaded sleeves. A friction head disposed in the first T-slot is fixedly connected to the third screw. The friction head is slidably connected to the support platform.

7. A multi-station horizontal CNC boring, milling, and turning combination machine tool according to claim 1, characterized in that, The movable tensioning part includes two sets of cantilever arms fixedly connected to the machine tool bed. Each cantilever arm is fixedly connected to a second active telescopic frame. The moving end of the second active telescopic frame is fixedly connected to a hanging rail. The hanging rail is fixedly connected to a second motor. The output shaft of the second motor is fixedly connected to a fourth screw. The fourth screw is threadedly connected to a transverse frame. The transverse frame is fixedly connected to a third active telescopic frame. The moving end of the third active telescopic frame is fixedly connected to an electromagnet. The transverse frame is fixedly connected to two sets of guide shells. A third motor is fixedly installed inside each guide shell. The output shaft of the third motor is fixedly connected to a prism. The prism is slidably connected to a hexagonal sleeve. The hexagonal sleeve is rotatably connected to a rotary joint. The rotary joint is fixedly connected to a second spring. The second spring is fixedly connected to a pressure sensor. The pressure sensor is fixedly connected to the guide shell. The rotary joint is slidably connected to multiple sets of guide strips. The guide strips are slidably connected to the guide shells.

Images