A lathe for output spindle machining

Abstract

The present application relates to the technical field of lathe, in particular to a kind of lathe for output spindle machining.The lathe includes a bed, the bed is provided with a turnover clamping system, the turnover clamping system is connected with two spacing adjustable clamping arms, two electrically rotatable clamping wheels are rotatably installed on each clamping arm, a tool feeding table movable in three axes is installed on the bed, a set of driven rotary seats are rotatably installed on the tool feeding table, and locking bolts are threadedly installed on the tool feeding table corresponding to the position of each driven rotary seat.The present application forms an integrated solution of self-adaptive clamping, 360° attitude adjustment and stable self-rotation through the linkage design of turnover clamping system and clamping wheel self-rotation mechanism, to solve the problems of single-end fixation or single-angle positioning in the prior art, precision decay caused by multiple clamping, and frequent tool change required for multi-specification spindle adaptation.

Description

Technical Field

[0001] This invention relates to the field of lathe technology, specifically to a lathe for machining output spindles. Background Technology

[0002] In the field of mechanical manufacturing, the output spindle, as a core load-bearing and power transmission component in transmission equipment, precision machine tools, and aerospace parts, directly determines the operational stability, transmission accuracy, and service life of the end equipment through its machining accuracy, surface roughness, and machining efficiency. It is one of the key indicators for measuring the level of mechanical manufacturing. Currently, the industry mainly relies on traditional horizontal lathes, general-purpose CNC lathes, or customized special-purpose machining equipment for the machining of output spindles. However, in actual large-scale production, existing equipment has the following technical problems: The output spindle machining requires multiple processes such as turning the outer peripheral surface, milling the end face, drilling the stepped hole, and grinding the inner hole. The existing clamping structure can only achieve single-end fixing or single-angle positioning of the spindle. Moreover, the existing device has a relatively simple drive mode, which is not convenient to switch cyclically between the single rotation mode, the vibration mode, and the rotation and combined vibration mode of the cutter head. Therefore, the applicable scenarios and processing range are relatively limited. Based on this, the present invention provides a lathe for machining output spindles to solve the problems mentioned in the background art. Summary of the Invention

[0003] This invention addresses the technical problems existing in the prior art by providing a lathe for machining output spindles.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a lathe for machining output spindles, comprising a bed frame, a tilting clamping system provided on the bed frame, two adjustable-pitch clamping arms connected to the tilting clamping system, two electrically rotatable clamping wheels rotatably mounted on each clamping arm, a three-axis movable tool feed table mounted on the bed frame, a set of driven rotating seats rotatably mounted on the tool feed table, and locking bolts threadedly mounted on the tool feed table corresponding to the position of each driven rotating seat, a tool post slidably connected to the inner wall of each driven rotating seat, and a tool post corresponding to the driven rotating seat on the tool post. A limiting spring is provided at the position of the tool column. A tool head is installed at the bottom of the tool column. The tool head on each tool column is of a different type. A movable transfer frame is provided on the tool feed table. A reciprocating drive system driven by a servo motor is provided on the transfer frame. A reciprocating frame that can move up and down and a rotating transmission seat are connected to the reciprocating drive system. The transmission seat is rotatably mounted on the reciprocating frame. A drive disk that is adapted to and connected to the transmission seat is installed at the top of each tool column. The reciprocating stroke of the reciprocating frame is linearly adjustable. A pressure plate is provided above the reciprocating frame. A set of electric pressure rods is installed between the pressure plate and the transfer frame.

[0005] As a preferred embodiment of the present invention, a housing is installed on the bed frame, an electric door and a microcontroller are installed on the housing, and a transparent viewing window is installed on the electric door.

[0006] As a preferred technical solution of the present invention, the flipping clamping system includes an electric rotary unit mounted on a bed frame, a flipping frame mounted on the rotating surface of the electric rotary unit, a clamping screw rotatably mounted on the flipping frame, a clamping motor mounted on the flipping frame, the output shaft end of the clamping motor being fixedly connected to the clamping screw, a forward threaded section and a reverse threaded section symmetrically arranged on the clamping screw, the forward threaded section and the reverse threaded section being respectively connected to the clamping arms for transmission, and both clamping arms being slidably connected to the flipping frame.

[0007] As a preferred technical solution of the present invention, a rotary motor is installed on one of the clamping arms, and a first synchronous toothed belt is driven to the output shaft end of the rotary motor. The first synchronous toothed belt is driven to a clamping wheel, and the spindle to be processed is clamped between the two clamping arms.

[0008] As a preferred technical solution of the present invention, a slidable drive frame is provided on the bed frame, and two axial transmission modules are provided on the bed frame. Both axial transmission modules are drivenly connected to the slidable drive frame. A longitudinal transmission module is installed on the slidable drive frame, and a longitudinal moving frame is drivenly connected to the longitudinal transmission module. A radial transmission module is provided on the longitudinal moving frame, and the radial transmission module is drivenly connected to the tool feed table. The tool feed table is slidably connected to the longitudinal moving frame.

[0009] As a preferred technical solution of the present invention, the bottom surface of the transmission rotary seat and the top surface of the drive disk are both provided with friction textures, the inner wall of the driven rotary seat is provided with two limiting guide grooves, each tool post is equipped with two guide strips, the two guide strips are slidably connected to the two limiting guide grooves respectively, the tool feed table is equipped with a first linear transmission module, the first linear transmission module is connected to the shift frame, and the shift frame is slidably connected to the tool feed table.

[0010] As a preferred technical solution of the present invention, the reciprocating drive system includes a hexagonal shaft rotatably connected to a moving frame, a servo motor fixedly mounted on the moving frame, the output shaft end of the servo motor fixedly connected to the hexagonal shaft, the hexagonal shaft being linked with a transmission rotary seat, a second linear transmission module mounted on the moving frame, an adjusting seat being drivenly connected to the second linear transmission module, a semi-cylindrical cam rotatably mounted on the adjusting seat, a sliding column fixedly mounted at one end of the semi-cylindrical cam, a transmission frame slidably connected to the reciprocating frame, friction transmission between the semi-cylindrical cam and the transmission frame, a set of elastic preload members being installed between the transmission frame and the reciprocating frame, the reciprocating frame being slidably connected to the moving frame, and a return spring limited by the moving frame being installed on the bottom surface of the reciprocating frame.

[0011] As a preferred technical solution of the present invention, the interior of the semi-cylindrical cam is fixedly provided with a hexagonal through slot that is open at both ends and slidably connected to a hexagonal shaft. The cross-sections of the hexagonal shaft and the hexagonal through slot are both regular hexagonal.

[0012] As a preferred technical solution of the present invention, a tensioning platform is slidably connected to the shifting frame, a tensioning spring is installed on the side of the tensioning platform, the other end of the tensioning spring is fixedly connected to the shifting frame, a tensioning wheel is rotatably installed on the tensioning platform, a second synchronous toothed belt is driven between the tensioning wheel and the hexagonal shaft, an external toothed shaft and an internal toothed shaft are rotatably installed on the reciprocating frame, the external toothed shaft is driven by the second synchronous toothed belt, a linkage bevel gear is installed on both the external toothed shaft and the internal toothed shaft, the two linkage bevel gears are orthogonally meshed, and a third synchronous toothed belt is driven between the internal toothed shaft and the transmission rotating seat.

[0013] Compared with the prior art, the present invention has the following advantages: 1. Addressing the issues of existing technologies where output spindle machining can only be fixed at one end or positioned at a single angle, requires multiple clamping operations leading to accuracy degradation, and necessitates frequent tooling changes for adapting to various spindle specifications, this invention achieves an integrated solution with adaptive clamping, 360° attitude adjustment, and stable rotation through the linkage design of a flip-clamping system and a self-rotating clamping wheel mechanism. This resolves the contradiction between omnidirectional machining of the output spindle and multi-specification adaptation. In the flip-clamping system, an electric rotator drives the flip frame to achieve 0-180° rotation. Combined with the forward and reverse threaded sections of the clamping screw, it drives the two clamping arms to move synchronously closer or further apart. This structure allows for adaptation to different specifications of output spindles without changing clamping tooling. Simultaneously, the rotary motor on the clamping arm drives the clamping wheel via a first synchronous toothed belt. The clamping wheel, through friction, drives the spindle to rotate stably. Combined with the attitude flipping of the flip frame, multiple parts of the spindle, such as the outer circumference, end face, and stepped holes, can be exposed to the machining area at once, avoiding the multiple disassembly and reassembly operations of traditional lathes and enabling omnidirectional machining of the spindle.

[0014] 2. Addressing the technical shortcomings of existing lathes with fixed drive modes, unsuitable for turning, drilling, and grinding processes, requiring manual tool head replacement or transmission mechanism adjustment, this invention utilizes a linkage design between a reciprocating drive system and a driven rotary seat locking mechanism. Using a single servo motor as the power source, it achieves flexible switching of the tool head drive mode, creatively overcoming the limitation of a single power source only outputting a single motion. In the single-rotation mode, the driven rotary seat is kept rotatable by locking bolts. The first linear transmission module drives the carriage to contact the sliding column of the semi-cylindrical cam with the transmission frame. At this time, the servo motor drives the hexagonal shaft to rotate, and the transmission rotary seat rotates only through the transmission path of the second synchronous toothed belt, external toothed shaft, linkage bevel gear, internal toothed shaft, and third synchronous toothed belt. The transmission rotary seat engages with the drive disc at the top of the tool post, driving the tool head to rotate singly, meeting the high-precision rotary machining requirements of drilling, precision turning, etc., with improved rotational accuracy compared to traditional gear transmission. In the tool head vibration mode, the driven rotary seat is locked in place by locking bolts to prevent rotation. The electric pressure rod pushes the pressure plate down to press the reciprocating frame, while the second linear transmission module... Adjusting the position of the semi-cylindrical cam allows friction transmission between the knurled area and the transmission frame. When the servo motor drives the hexagonal shaft to rotate the semi-cylindrical cam, the transmission frame slides along the reciprocating frame and drives it to move up and down repeatedly, thereby pushing the cutter head to achieve linear vibration feed. This meets the intermittent cutting requirements during turning and avoids the vibration marks caused by traditional manual feed. In the combined mode of cutter head rotation and vibration, the locking bolt is unlocked and the semi-cylindrical cam is adjusted until the knurled area contacts the transmission frame. At this time, the power of the servo motor is synchronously transmitted to two paths: one is that the hexagonal shaft drives the semi-cylindrical cam to vibrate the reciprocating frame, and the other is that the hexagonal shaft drives the transmission rotary seat to rotate through the toothed belt. This ultimately achieves a combined action of cutter head rotation grinding and vibration slag removal. The surface treatment after spindle machining can be completed without changing the cutter head, and the connection time between processes is shortened. In summary, this invention can achieve the cyclic switching of three drive modes with only simple operations of adjusting the contact area of ​​the semi-cylindrical cam and switching the locked state of the driven rotary seat, without the need for additional power sources. This not only simplifies the equipment structure but also reduces manufacturing costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a lathe for machining output spindles; Figure 2 A schematic diagram of the bed frame and the spindle to be processed; Figure 3 for Figure 2 A structural diagram from another perspective; Figure 4 A schematic diagram of the clamping wheel and the clamping lead screw; Figure 5 This is a schematic diagram of the first linear transmission module and the driven rotary seat; Figure 6 A schematic diagram of the electric pressure rod and servo motor; Figure 7 for Figure 6 A magnified schematic diagram of the local structure at point A; Figure 8 This is a structural diagram of the pressure plate and the electric pressure rod.

[0016] The attached diagram lists the components represented by each number as follows: 1. Bed frame; 2. Clamping arm; 3. Clamping wheel; 4. Tool feed table; 5. Driven rotating seat; 6. Locking bolt; 7. Tool post; 8. Limit spring; 9. Tool head; 10. Shifting frame; 11. Servo motor; 12. Reciprocating frame; 13. Transmission rotating seat; 14. Drive disc; 15. Pressure plate; 16. Electric pressure rod; 17. Housing; 18. Electric door; 19. Microcontroller; 20. Electric rotator; 21. Tilting frame; 22. Clamping screw; 23. 24. Rotary motor; 25. Spindle to be processed; 26. Shaft drive frame; 27. Axial transmission module; 28. Longitudinal transmission module; 29. ​​Longitudinal transfer frame; 30. Radial transmission module; 31. First linear transmission module; 32. Hexagonal shaft; 33. Second linear transmission module; 34. Adjusting seat; 35. Semi-cylindrical cam; 36. Sliding column; 37. Transmission frame; 38. Elastic preload element; 39. Tensioning table; 40. Tensioning spring; 41. Tensioning wheel; 42. External gear shaft; 43. Internal gear shaft; 44. Return spring. Detailed Implementation

[0017] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0018] The present invention provides the following preferred embodiments: like Figure 1-8 As shown, a lathe for machining output spindles includes a bed frame 1; A housing 17 is installed on the bed frame 1, an electric door 18 and a microcontroller 19 are installed on the housing 17, and a transparent viewing window is installed on the electric door 18. Before processing, the microcontroller 19 can preset the processing parameters and control the electric door 18 to close, forming a closed processing space; During the processing, the operator can observe the processing status of the spindle 24 in real time through a transparent window without having to frequently open the door; After processing is completed, the microcontroller 19 controls the electric door 18 to open automatically, making it easy to pick up and put down the workpiece; The enclosed housing 17 can effectively prevent metal chips from splashing and cutting fluid from overflowing during the machining process, which can protect operators from accidental injury and keep the working environment clean, solving the problem of dirt and disorder in traditional open lathes. The integrated control of the microcontroller 19 reduces the intensity of manual operation and improves the level of equipment automation; The transparent window ensures both airtightness and visibility during processing, preventing frequent opening of the door from disrupting the stability of the processing environment. The bed frame 1 is equipped with a flip clamping system, which is connected to two adjustable clamping arms 2. Each clamping arm 2 is rotatably mounted with two electrically rotatable clamping wheels 3. The flipping clamping system includes an electric rotary unit 20 mounted on the bed frame 1. A flipping frame 21 is mounted on the rotating surface of the electric rotary unit 20. A clamping screw 22 is rotatably mounted on the flipping frame 21. A clamping motor is mounted on the flipping frame 21. The output shaft end of the clamping motor is fixedly connected to the clamping screw 22. A forward thread section and a reverse thread section are symmetrically arranged on the clamping screw 22. The forward thread section and the reverse thread section are respectively connected to the clamping arms 2 for transmission. Both clamping arms 2 are slidably connected to the flipping frame 21. By using the flip-up structure of the flip frame 21 and the spindle 24 to be processed to be rotatable, it is possible to achieve double-end processing and all-round processing of the spindle surface of the spindle 24 to be processed. A rotary motor 23 is mounted on one clamping arm 2. The output shaft of the rotary motor 23 is connected to a first synchronous toothed belt. The first synchronous toothed belt is connected to a clamping wheel 3. The spindle 24 to be processed is clamped between the two clamping arms 2. Both the clamping wheel 3 and the output shaft end of the rotary motor 23 are equipped with a first toothed pulley, which is adapted to and connected to the first synchronous toothed belt. When the clamping motor drives the clamping screw 22 to rotate, its forward thread section and reverse thread section drive the two clamping arms 2 to move closer synchronously, so that the clamping wheel 3 clamps the spindle 24 to be processed. Subsequently, the rotary motor 23 starts and transmits power to one of the clamping rollers 3 through the cooperation of the first toothed pulley and the first synchronous toothed belt. The clamping roller 3 drives the spindle 24 to rotate stably by means of friction with the spindle 24 to be processed. With the integrated design of clamping by clamping wheel 3 and motor-driven spindle 24, there is no need to set up an additional independent spindle drive mechanism, which greatly simplifies the equipment structure and reduces manufacturing costs. Meanwhile, the spindle spindle can be combined with the flipping action of the flipping clamping system to achieve 360° machining of the spindle axis without dead angles, solving the efficiency problem of traditional lathes that require multiple clamping and adjustment to complete the all-round machining of the spindle. A tool feed table 4 capable of moving along three axes is mounted on the bed frame 1; A slidable drive frame 25 is connected to the bed frame 1. Two axial drive modules 26 are provided on the bed frame 1. Both axial drive modules 26 are drivenly connected to the slidable drive frame 25. A longitudinal drive module 27 is installed on the slidable drive frame 25. A longitudinal transfer frame 28 is drivenly connected to the longitudinal drive module 27. A radial drive module 29 is provided on the longitudinal transfer frame 28. The radial drive module 29 is drivenly connected to the tool feed table 4. The tool feed table 4 is slidably connected to the longitudinal transfer frame 28. The axial transmission module 26 drives the shaft moving frame 25 to move axially along the bed frame 1, thereby realizing the position adjustment of the tool feed table 4 along the axis of the spindle 24 to be processed. The longitudinal transmission module 27 drives the longitudinal transfer frame 28 to move longitudinally along the shaft moving frame 25, adjusting the front-to-back distance between the tool feed table 4 and the spindle 24 to be processed; The radial transmission module 29 drives the tool feed table 4 to slide radially along the longitudinal frame 28, controlling the feed depth between the tool head 9 and the spindle surface. The three work together to achieve precise positioning of the tool feed table 4 in three-dimensional space. The three-axis motion system with a three-stage transmission structure has a wider machining coverage compared to the single-axis or two-axis motion of traditional lathes, and can adapt to the machining needs of output spindles of different lengths and diameters. Two axial drive modules 26 synchronously drive the shaft moving frame 25, which can avoid the problem of uneven force and movement deviation of the shaft moving frame 25 caused by single drive, and improve the movement stability of the tool feed table 4. Each transmission module is independently controlled and has high positioning accuracy, which can reduce manual adjustment time, improve processing efficiency, and solve the defects of traditional lathes such as limited processing range and insufficient positioning accuracy. A set of driven rotary seats 5 are rotatably mounted on the tool feed table 4, and locking bolts 6 are threadedly installed on the tool feed table 4 and corresponding to the position of each driven rotary seat 5. By setting the locking bolt 6, the driven seat 5 at the designated position can be prevented from rotating; By switching the rotatable states of each driven rotary seat 5, this device can use both a stationary cutting head 9 and a rotary machining drill or grinding head. When a rotary machining drill or grinding head enters the machining station, the servo motor 11 is turned on. When performing a high-stability lathe rotary machining operation, under the action of the first linear transmission module 30, the slide column 35 on the semi-cylindrical cam 34 is connected to the transmission frame 36. Due to the smooth surface structure of the slide column 35, the servo motor 11 only drives the transmission rotary seat 13 to rotate and does not drive the reciprocating frame 12 to move back and forth. When a rotary vibration-type machining operation is required, such as grinding or cleaning after the output spindle has finished turning, the servo motor 11 is turned on. Under the action of the first linear transmission module 30, the semi-cylindrical cam 34 is engaged with the transmission frame 36 at a designated position, and the reciprocating frame 12 obtains a designated displacement stroke. When the reciprocating frame 12 is displaced, the transmission rotary seat 13 rotates synchronously. When the tool head 9 is required to perform turning, the driven rotating seat 5 on the tool head 9 is kept stationary by locking bolt 6. Under the control of servo motor 11, the non-transmission area of ​​semi-cylindrical cam 34 corresponds to transmission frame 36 and loses connection with transmission frame 36. Then, by controlling the extension and retraction of electric pressure rod 16, the tool head 9 can be driven to produce a displacement of a specified stroke. Each driven rotary seat 5 has a slidably connected knife post 7 on its inner wall; Two limiting guide grooves are provided on the inner wall of the driven rotary seat 5, and two guide bars are installed on each cutter post 7. The two guide bars are slidably connected to the two limiting guide grooves respectively. A limiting spring 8 is provided on the cutter column 7 and at the position above the driven rotary seat 5. A cutter head 9 is installed at the bottom end of the cutter column 7. The cutter head 9 on each cutter column 7 is of a different type. A movable shifter 10 is provided on the tool feed table 4. A first linear drive module 30 is installed on the tool feed table 4. The first linear drive module 30 is connected to the shift frame 10 in a drive connection. The shift frame 10 is slidably connected to the tool feed table 4. The shift frame 10 is equipped with a reciprocating drive system driven by a servo motor 11. The reciprocating drive system is connected to a reciprocating frame 12 that can move up and down and a rotating transmission seat 13. The transmission seat 13 is rotatably mounted on the reciprocating frame 12. Each cutter column 7 has a drive disk 14 that is adapted to and connected to the transmission seat 13 at its top. The reciprocating stroke of the reciprocating frame 12 is linearly adjustable. A pressure plate 15 is provided above the reciprocating frame 12. A set of electric pressure rods 16 is installed between the pressure plate 15 and the shift frame 10.

[0019] The bottom surface of the transmission rotary seat 13 and the top surface of the drive disc 14 are both provided with friction textures; The reciprocating drive system includes a hexagonal shaft 31 rotatably connected to the shift frame 10, a servo motor 11 fixedly mounted on the shift frame 10, the output shaft end of the servo motor 11 fixedly connected to the hexagonal shaft 31, and the hexagonal shaft 31 linked with the transmission rotary seat 13; The semi-cylindrical cam 34 has a hexagonal through slot with openings at both ends and slidably connected to the hexagonal shaft 31. The cross-sections of the hexagonal shaft 31 and the hexagonal through slot are both regular hexagonal. A second linear transmission module 32 is installed on the shift frame 10. An adjustment seat 33 is connected to the second linear transmission module 32. A semi-cylindrical cam 34 is rotatably installed on the adjustment seat 33. A sliding column 35 is fixedly installed at one end of the semi-cylindrical cam 34. A transmission frame 36 is slidably connected to the reciprocating frame 12. The semi-cylindrical cam 34 and the transmission frame 36 are driven by friction. A set of elastic preload members 37 is installed between the transmission frame 36 and the reciprocating frame 12. The reciprocating frame 12 is slidably connected to the shift frame 10. A return spring 43 that is limited by the shift frame 10 is installed on the bottom surface of the reciprocating frame 12.

[0020] The elastic pretensioner 37 includes a T-shaped pretensioner rod installed on the transmission frame 36. The T-shaped pretensioner rod is slidably connected to the reciprocating frame 12. A pretensioner spring is sleeved on the T-shaped pretensioner rod at a position corresponding to the position between the transmission frame 36 and the reciprocating frame 12. A set of horizontally arranged guide grooves are provided on the transmission frame 36, and a guide rail that is slidably connected to the guide grooves is installed on the reciprocating frame 12. The surface of the slide column 35 is smooth and the connection between the slide column 35 and the semi-cylindrical cam 34 is provided with a transition rounded corner. The slide column 35 is installed on the small end of the semi-cylindrical cam 34. The reciprocating frame 12 moves in a vertical motion mode. When the semi-cylindrical cam 34 rotates, its outer surface and the transmission frame 36 are driven by friction to slide the transmission frame 36 along the reciprocating frame 12. The elastic preload 37 always applies preload force to the transmission frame 36 to ensure that the two fit together without gap. Finally, the transmission frame 36 drives the reciprocating frame 12 to move up and down reciprocally. At the same time, the hexagonal shaft 31 rotates through the subsequent toothed belt drive linkage to the rotating seat 13, forming a composite power output of reciprocating movement and rotation drive.

[0021] When the transmission rotary seat 13 is driven, the transmission rotary seat 13 moves down with the reciprocating frame 12 and fits tightly with the drive disk 14 at the top of the cutter column 7, and the friction texture increases the friction coefficient of the contact surface between the two. The cross-section of the semi-cylindrical cam 34 is an isosceles trapezoid. Both the semi-cylindrical cam 34 and the transmission frame 36 are provided with knurled patterns. The central angle of the semi-cylindrical cam 34 is 180°. The radius of the large end of the semi-cylindrical cam 34 is 2.2 times the radius of the small end.

[0022] A tensioning platform 38 is slidably connected to the shift frame 10. A tensioning spring 39 is installed on the side of the tensioning platform 38. The other end of the tensioning spring 39 is fixedly connected to the shift frame 10. A tensioning wheel 40 is rotatably installed on the tensioning platform 38. A second synchronous toothed belt is connected between the tensioning wheel 40 and the hexagonal shaft 31. An external gear shaft 41 and an internal gear shaft 42 are rotatably installed on the reciprocating frame 12. The external gear shaft 41 is connected to the second synchronous toothed belt. Both the external gear shaft 41 and the internal gear shaft 42 are equipped with linkage bevel gears. The two linkage bevel gears mesh orthogonally. A third synchronous toothed belt is connected between the internal gear shaft 42 and the transmission rotating seat 13.

[0023] The tensioning pulley 40, the hexagonal shaft 31, and the external gear shaft 41 are all equipped with second toothed pulleys that are connected to the second synchronous toothed belt. Both the internal gear shaft 42 and the transmission hub 13 are equipped with third toothed pulleys that connect to the third synchronous toothed belt; After the servo motor 11 drives the hexagonal shaft 31 to rotate, the second synchronous toothed belt transmits the power to the external toothed shaft 41. The external toothed shaft 41 converts the horizontal rotational power into the vertical rotation of the internal toothed shaft 42 through the orthogonal meshing linkage bevel gear. The internal toothed shaft 42 then drives the transmission rotating seat 13 to rotate through the third synchronous toothed belt. The preload of the tension spring 39 is adjusted in real time as the tensioning table 38 slides, ensuring that the second synchronous toothed belt is always taut.

[0024] The working principle of this invention is as follows: The workflow of a lathe for machining output spindles of this invention revolves around pre-machining preparation, workpiece clamping, machining positioning, tool head 9 adaptation, power transmission, machining execution, and machining completion. Specifically, before machining, the operator presets machining parameters through the microcontroller 19 on the bed frame 1 housing 17, including the distance between clamping arms 2, the state of the driven rotary seat 5, the three-axis movement coordinates of the tool feed table 4, and the reciprocating stroke of the reciprocating frame 12. Subsequently, the microcontroller 19 controls the electric door 18 to close, forming a closed machining environment, and the operator can observe the internal state through a transparent window. When the workpiece is clamped, the clamping motor of the flip clamping system drives the clamping screw 22 to rotate. The two clamping arms 2 slide along the flip frame 21 by means of the forward thread section and the reverse thread section, so that the clamping wheel 3 adaptively clamps the spindle 24 to be processed. Then the rotary motor 23 on the clamping arm 2 drives the clamping wheel 3 through the first synchronous toothed belt. The clamping wheel 3 drives the spindle 24 to be processed to rotate stably by friction. During the machining positioning stage, the two axial transmission modules 26 on the bed frame 1 synchronously drive the axial frame 25 to slide and realize the axial positioning of the tool feed table 4. The longitudinal transmission module 27 on the axial frame 25 drives the longitudinal frame 28 to slide and complete the longitudinal positioning. The radial transmission module 29 on the longitudinal frame 28 drives the tool feed table 4 to slide and control the feed depth. The three work together to achieve three-dimensional precise alignment of the tool feed table 4. When the cutter head 9 is adapted, the rotation or stationary state of the driven rotating seat 5 is switched by the locking bolt 6 according to the type of cutter head 9, and then the first linear transmission module 30 drives the moving frame 10 to move above the target cutter column 7. During machining, the electric rotary unit 20 drives the tilting frame 21 to rotate, which, together with the self-rotating spindle, enables all-around machining. The limit spring 8 buffers the rigid impact of the cutter head 9 contacting the spindle. The operator can monitor the process in real time through a transparent window and fine-tune the parameters through the microcontroller 19. After processing is completed, the microcontroller 19 controls the servo motor 11 and rotary motor 23 to stop running, the electric pressure rod 16 retracts to separate the transmission rotary seat 13 from the drive disk 14, the clamping motor drives the clamping arm 2 to release the spindle, the electric door 18 opens automatically, the operator takes out the spindle and cleans up the debris, and then the next batch of processing can begin.

[0025] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A lathe for machining output spindles, comprising a bed frame (1), characterized in that: The bed frame (1) is equipped with a flip clamping system, which is connected to two adjustable clamping arms (2). Each clamping arm (2) is rotatably mounted with two electrically rotatable clamping wheels (3). The bed frame (1) is equipped with a three-axis movable tool feed table (4). A set of driven rotating seats (5) is rotatably mounted on the tool feed table (4). Locking bolts (6) are threaded on the tool feed table (4) and at the position corresponding to each driven rotating seat (5). A tool column (7) is slidably connected to the inner wall of each driven rotating seat (5). A limit spring (8) is provided on the tool column (7) at the position corresponding to the position above the driven rotating seat (5). A tool head (9) is installed at the bottom end of the tool column (7). Each tool... The types of cutter heads (9) on the column (7) are different. The tool feed table (4) is provided with a movable shift frame (10). The shift frame (10) is provided with a reciprocating drive system driven by a servo motor (11). The reciprocating drive system is connected to a reciprocating frame (12) that can move up and down and a rotating transmission seat (13). The transmission seat (13) is rotatably mounted on the reciprocating frame (12). Each cutter column (7) is equipped with a drive disk (14) that is adapted to and connected to the transmission seat (13). The reciprocating stroke of the reciprocating frame (12) is linearly adjustable. A pressure plate (15) is provided above the reciprocating frame (12). A set of electric pressure rods (16) is installed between the pressure plate (15) and the shift frame (10).

2. The lathe for machining output spindles according to claim 1, characterized in that: The bed frame (1) is equipped with a housing (17), and the housing (17) is equipped with an electric door (18) and a microcontroller (19). The electric door (18) is equipped with a transparent viewing window.

3. The lathe for machining output spindles according to claim 1, characterized in that: The flipping clamping system includes an electric rotary device (20) mounted on the bed frame (1). A flipping frame (21) is mounted on the rotating surface of the electric rotary device (20). A clamping screw (22) is rotatably mounted on the flipping frame (21). A clamping motor is mounted on the flipping frame (21). The output shaft end of the clamping motor is fixedly connected to the clamping screw (22). A forward thread section and a reverse thread section are symmetrically arranged on the clamping screw (22). The forward thread section and the reverse thread section are respectively connected to the clamping arms (2). Both clamping arms (2) are slidably connected to the flipping frame (21).

4. A lathe for machining output spindles according to claim 3, characterized in that: A rotary motor (23) is mounted on one of the clamping arms (2), and a first synchronous toothed belt is driven to the output shaft end of the rotary motor (23). The first synchronous toothed belt is driven to a clamping wheel (3), and the spindle (24) to be processed is clamped between the two clamping arms (2).

5. A lathe for machining output spindles according to claim 1, characterized in that: A slidable drive frame (25) is slidably connected to the bed frame (1). Two axial drive modules (26) are provided on the bed frame (1). Both axial drive modules (26) are drivenly connected to the slidable drive frame (25). A longitudinal drive module (27) is installed on the slidable drive frame (25). A longitudinal shift frame (28) is drivenly connected to the longitudinal drive module (27). A radial drive module (29) is provided on the longitudinal shift frame (28). The radial drive module (29) is drivenly connected to the tool feed table (4). The tool feed table (4) is slidably connected to the longitudinal shift frame (28).

6. A lathe for machining output spindles according to claim 1, characterized in that: The bottom surface of the transmission rotary seat (13) and the top surface of the drive disk (14) are both provided with friction textures. The inner wall of the driven rotary seat (5) has two limiting guide grooves. Each tool post (7) is equipped with two guide bars. The two guide bars are slidably connected to the two limiting guide grooves respectively. The tool feed table (4) is equipped with a first linear transmission module (30). The first linear transmission module (30) is connected to the shift frame (10) in a transmission connection. The shift frame (10) is slidably connected to the tool feed table (4).

7. A lathe for machining output spindles according to claim 6, characterized in that: The reciprocating drive system includes a hexagonal shaft (31) rotatably connected to the moving frame (10), a servo motor (11) fixedly mounted on the moving frame (10), the output shaft end of the servo motor (11) fixedly connected to the hexagonal shaft (31), the hexagonal shaft (31) being linked with the transmission rotating seat (13), a second linear transmission module (32) mounted on the moving frame (10), an adjusting seat (33) being drivenly connected to the second linear transmission module (32), and a half-mounted... A cylindrical cam (34) is provided, with a sliding column (35) fixedly installed at one end of the semi-cylindrical cam (34). A transmission frame (36) is slidably connected to the reciprocating frame (12). The semi-cylindrical cam (34) and the transmission frame (36) are driven by friction. A set of elastic preload members (37) is installed between the transmission frame (36) and the reciprocating frame (12). The reciprocating frame (12) is slidably connected to the shift frame (10). A return spring (43) that is limited by the shift frame (10) is installed on the bottom surface of the reciprocating frame (12).

8. A lathe for machining output spindles according to claim 7, characterized in that: The semi-cylindrical cam (34) has a hexagonal through slot with openings at both ends and slidably connected to the hexagonal shaft (31). The cross-sections of the hexagonal shaft (31) and the hexagonal through slot are both regular hexagonal.

9. A lathe for machining output spindles according to claim 7, characterized in that: A tensioning platform (38) is slidably connected to the shift frame (10). A tensioning spring (39) is installed on the side of the tensioning platform (38). The other end of the tensioning spring (39) is fixedly connected to the shift frame (10). A tensioning wheel (40) is rotatably installed on the tensioning platform (38). A second synchronous toothed belt is connected between the tensioning wheel (40) and the hexagonal shaft (31). An external toothed shaft (41) and an internal toothed shaft (42) are rotatably installed on the reciprocating frame (12). The external toothed shaft (41) is connected to the second synchronous toothed belt. Both the external toothed shaft (41) and the internal toothed shaft (42) are equipped with linkage bevel gears. The two linkage bevel gears mesh orthogonally. A third synchronous toothed belt is connected between the internal toothed shaft (42) and the transmission rotating seat (13).

Images