A lathe micro-motion platform

Abstract

The present invention discloses a lathe micro-motion platform, comprising: a base, a moving platform, a plurality of transverse drive assemblies and a plurality of longitudinal drive assemblies, wherein the plurality of transverse drive assemblies are distributed in a circular array with the center of the base as the center, the transverse drive assembly comprises a power source, a slide rail installed at the output end of the power source, and a drive rod slidably connected to the slide rail at one end, the power source comprises at least one power unit, the power unit comprises a bridge amplifier, a piezoelectric driver arranged in the bridge amplifier, and a connector connecting the bridge amplifier and the slide rail, the moving platform is arranged on the base and can slide freely relative to the base, and the plurality of longitudinal drive assemblies are distributed in a circular array with the center of the moving platform as the center. The lathe micro-motion platform has high positioning accuracy and low cost.

Description

Technical Field

[0001] The present invention relates to the technical field of high-precision positioning, and in particular to a lathe micro-motion platform. Background Art

[0002] High-resolution, high-precision micro-displacement systems are key systems that directly affect the levels of precision and ultra-precision machining, precision measurement, and ultra-large-scale integrated circuit production. They occupy an extremely important position in modern cutting-edge industrial production and scientific research. The various technical indicators of precision micro-displacement systems are important indicators of the technological development level of various countries.

[0003] In recent years, micro-manipulation robot technology for fields such as bioengineering, medical engineering, and micromachining has received widespread attention at home and abroad. Due to its rapid development speed, it has been applied to the fields of cell injection and segmentation, processing and assembly of micro-electromechanical products, and microsurgery.

[0004] The locking of the existing traditional lathe micro-motion platform usually relies on the self-locking function of the lathe motor. The gravity of the workpiece will directly act on the drive motor through the transmission mechanism, which can easily cause damage to the drive motor after long-term use. Summary of the Invention

[0005] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to invent a lathe micro-motion platform that can prevent the gravity of the workpiece to be processed from directly acting on the drive motor when the rotating seat is locked, thereby preventing the drive motor from being damaged.

[0006] The present invention adopts the following technical solutions:

[0007] A lathe fine-motion platform comprises: a rotating seat, a transmission assembly, a drive assembly, a locking assembly, and a first mounting seat and a second mounting seat which are hollow. Connecting cylinders are provided at both ends of the rotating seat. The first mounting seat and the second mounting seat are disposed at both ends of the rotating seat and are respectively rotatably connected to the two connecting cylinders. A first driven gear ring is provided on the outer side of the connecting cylinder disposed in the second mounting seat.

[0008] The transmission assembly includes a first transmission cylinder, the first transmission cylinder being coaxial with the two connecting cylinders, and having two ends of the first transmission cylinder extending through the two connecting cylinders and being mounted with a first gear ring. The drive assembly is disposed within the first mounting seat and is in transmission connection with the first gear ring disposed within the first mounting seat.

[0009] The locking assembly is arranged in the second mounting seat, and the locking assembly includes a driving member, a locking member and a locking gear. A mounting plate is provided in the second mounting seat, the locking gear is mounted on the mounting plate and is rotatably connected to the mounting plate, the locking gear is transmission-connected to the first driven ring gear, and the first ring gear disposed in the second mounting seat is transmission-connected to the locking gear. A first protruding tooth is provided at the bottom of the locking gear, and a plurality of first protruding teeth are distributed in a circular array with the axis of the locking gear as the center. The driving member is located below the mounting plate, and the locking member is mounted on the driving end of the driving member, and is suitable for moving toward the direction of the first protruding tooth under the drive of the driving member to engage with the first protruding tooth.

[0010] Furthermore, the locking member includes a snap member and a pressing member, the snap member is located below the locking gear, and a side of the snap member facing the locking gear is provided with a plurality of second protruding teeth adapted to the first protruding teeth;

[0011] The driving end of the driving member is provided with a mounting post, the fastener is sleeved on the mounting post and can move radially or axially relative to the mounting post, and the clamping member is provided between the clamping member and the driving end of the driving member, so as to be suitable for being clamped on the clamping member when the driving member drives the first protruding tooth to engage with the second protruding tooth.

[0012] Furthermore, the pressure angle of the first protruding teeth and the second protruding teeth is greater than 60°, and the pressing member is made of rubber material.

[0013] Furthermore, the locking gear includes a body rotatably mounted on the mounting plate and a clamping member disposed below the mounting plate;

[0014] The top end of the clamping member passes through the mounting plate and is slidably connected to the body, and a plurality of first protruding teeth are provided on the end surface of the bottom end of the clamping member;

[0015] A fixing plate is provided on the outer side of the clamping member, and a limiting cover extends from the edge of the fixing plate toward the main body. The limiting cover is suitable for abutting against the mounting plate under the drive of the driving member after the first protruding tooth is engaged with the second protruding tooth.

[0016] Furthermore, it also includes a cover body, the driving member is arranged in the cover body, and a limiting assembly is provided on the outer side of the cover body corresponding to the limiting cover, the limiting assembly includes a limiting rod, a fixing seat and a first limiting spring, an annular groove is provided on the outer side of the limiting cover, an opening is provided on the cover body, the limiting rod is arranged in the opening and can move along the opening toward or away from the limiting cover, a fixing seat is provided at one end of the limiting rod away from the limiting cover, the first limiting spring is sleeved on the limiting rod, and the two ends of the first limiting spring are respectively fixed to the fixing seat and the cover body, so as to provide elastic force for the limiting rod so that the limiting rod is pressed against the outer side of the limiting cover, and when the limiting cover abuts against the fixing plate, the limiting rod can be stuck in the groove.

[0017] Furthermore, a return spring is provided on the fixing plate, one end of the return spring abuts against the fixing plate, and the other end abuts against the mounting plate, so as to provide an elastic force for the clamping member to move away from the mounting plate. The upper edge of the annular groove is provided with a chamfer, and the limiting rod is provided with an end close to the limiting cover and formed with an inclined surface adapted to the chamfer, so that when the clamping member moves away from the mounting plate, the inclined surface can slide with the chamfer, thereby driving the limiting rod to separate from the annular groove.

[0018] Furthermore, it also includes a rotating platform, the rotating platform is rotatably connected to the rotating seat, and the bottom end of the rotating platform extends into the rotating platform and is installed with a linkage gear ring;

[0019] The main body includes an input gear and an output gear. The output gear is rotatably connected to the mounting plate and is in transmission connection with the first driven ring gear. The clamping member is slidably connected to the output gear. The top of the output gear is provided with a mounting portion. The bottom of the input gear is provided with a mounting groove that snap-fits with the mounting portion. The input gear is in transmission connection with the first ring gear placed in the second mounting seat.

[0020] The transmission assembly also includes a second transmission cylinder, which is sleeved on the outside of the first transmission and passes through the first mounting seat, the rotating seat and the second mounting seat in sequence. The second transmission cylinder is placed in the rotating seat and the outer side thereof is mounted with a second driven gear ring, the second driven gear ring is meshed with the linkage gear ring, and the outer side of one end of the second transmission cylinder placed in the second mounting seat is provided with a second gear ring;

[0021] It also includes a switching gear, which is installed on the top of the input gear and fixedly connected to the input gear. A connecting member is provided on the top of the clamping member, and the clamping member is rotatably connected to the switching gear through the connecting member, so as to be suitable for driving the input gear and the output gear to separate through the connecting member during the process of the driving member driving the first convex tooth to engage with the second convex tooth, and making the switching gear engage with the second ring gear.

[0022] Furthermore, the slot opening of the installation slot is evenly provided with a plurality of slide grooves along the radial direction, the slide grooves extend along the depth direction of the installation slot, the slot opening of the slide groove is provided with a guide slope, and the outer side of the installation portion is evenly provided with a plurality of sliders adapted to the slide grooves.

[0023] Furthermore, it also includes an elastic limiting component, which includes a first limiting gear ring, a second limiting gear ring and a second limiting spring. The first limiting gear ring is arranged on the outside of the part of the second transmission cylinder placed in the rotating seat, and can slide along the axial direction of the second transmission cylinder. The second limiting gear ring is fixedly installed on the inner wall of the rotating seat and is coaxial with the first limiting gear ring. One end of the second limiting spring is arranged on the inner side of the second limiting gear ring and fixedly connected to the inner wall of the rotating seat, and the other end is fixedly connected to the first limiting gear ring, so as to be suitable for providing the first limiting gear ring with an elastic force for engaging with the second limiting gear ring.

[0024] Furthermore, the pressure angles of the teeth on the first position-limiting gear ring and the second position-limiting gear ring are greater than 60°.

[0025] Beneficial effects:

[0026] Compared with traditional machine tools that use the self-locking function of the drive motor to lock the rotating seat, the present invention cooperates with the driving member, locking member and locking gear to lock the rotating seat by clamping the locking member with the first convex tooth at the bottom of the locking gear, and can convert the force generated when the rotating seat is locked into a longitudinal pressure on the drive assembly through the first convex tooth, effectively avoiding the force directly acting on the drive motor and causing damage to the drive motor, and has higher reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural schematic diagram of a lathe micro-motion platform of the present invention;

[0028] Figure 2 This is a structural schematic diagram of a lathe micro-motion platform of the present invention;

[0029] Figure 3 for Figure 2 Magnified view at point A in the middle;

[0030] Figure 4A cross-sectional view of a lathe micro-motion platform of the present invention;

[0031] Figure 5 for Figure 4 Magnified view at point B in the middle;

[0032] Figure 6 for Figure 4 Enlarged view at center C;

[0033] Figure 7 A planar cross-sectional view of a lathe micro-motion platform of the present invention;

[0034] Figure 8 for Figure 7 Magnified view at point D in the middle;

[0035] Figure 9 This is a structural schematic diagram of a locking assembly for a lathe micro-motion platform according to the present invention;

[0036] Figure 10 This is an exploded view of a locking assembly for a lathe micro-motion platform according to the present invention;

[0037] Figure 11 This is a structural schematic diagram of an output gear of a lathe micro-motion platform of the present invention.

[0038] Reference numerals

[0039] 10. Rotating seat; 101. Connecting cylinder; 102. First driven ring gear; 20. Transmission assembly; 201. First transmission cylinder; 2011. First ring gear; 202. Second transmission cylinder; 2021. Second driven ring gear; 2022. Second ring gear; 30. Driving assembly; 40. Locking assembly; 401. Driving member; 4011. Mounting column; 402. Locking member; 4021. Snap member; 4022. Retaining member; 4023. Second protruding tooth; 403. Locking gear; 4031. Input gear; 40311. Mounting slot; 4032. Output gear; 40321 , mounting portion; 4033, holding member; 4034, first protruding tooth; 4035, limiting cover; 4036, reset spring; 4037, connecting member; 4038, annular groove; 50, first mounting seat; 60, second mounting seat; 601, mounting plate; 70, cover body; 80, limiting assembly; 801, limiting rod; 802, fixing seat; 803, first limiting spring; 90, rotating table; 901, linkage gear ring; 100, switching gear; 11, elastic limiting assembly; 1101, first limiting gear ring; 1102, second limiting gear ring; 1103, second limiting spring. DETAILED DESCRIPTION

[0040] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0041] In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0043] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and may encompass internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0044] like Figure 1-11 As shown, a lathe fine motion platform includes: a rotating base 10, a transmission assembly 20, a drive assembly 30, a locking assembly 40, and a first mounting base 50 and a second mounting base 60 that are hollow. Connecting cylinders 101 are provided at both ends of the rotating base 10. The first mounting base 50 and the second mounting base 60 are disposed at both ends of the rotating base 10 and are rotatably connected to the two connecting cylinders 101 respectively. A first driven gear ring 102 is provided on the outer side of the connecting cylinder 101 disposed in the second mounting base 60.

[0045] The transmission assembly 20 includes a first transmission cylinder 201, which is coaxial with the two connecting cylinders 101. Both ends of the first transmission cylinder 201 extend through the two connecting cylinders 101 and are mounted with first gear rings 2011. The drive assembly 30 is disposed within the first mounting seat 50 and is in transmission connection with the first gear ring 2011 disposed within the first mounting seat 50.

[0046] The locking assembly 40 is arranged in the second mounting seat 60, and the locking assembly 40 includes a driving member 401, a locking member 402 and a locking gear 403. A mounting plate 601 is provided in the second mounting seat 60, and the locking gear 403 is installed on the mounting plate 601 and is rotatably connected to the mounting plate 601. The locking gear 403 is transmission-connected to the first driven ring gear 102, and the first ring gear 2011 disposed in the second mounting seat 60 is transmission-connected to the locking gear 403. A first protruding tooth 4034 is provided at the bottom of the locking gear 403. The driving member 401 is located below the mounting plate 601, and the locking member 402 is installed at the driving end of the driving member 401, and is suitable for moving toward the first protruding tooth 4034 under the drive of the driving member 401 so as to be engaged with the first protruding tooth 4034.

[0047] In this embodiment, the driving assembly 30 includes a driving motor and a driving gear. The driving gear is engaged with the first gear ring 2011 of the first transmission cylinder 201 arranged in the first mounting seat 50, so that the driving motor can drive the first transmission cylinder 201 to rotate, so as to drive the locking gear 403 to rotate. In order to avoid the locking gear 403 from rotating too fast and affecting the adjustment accuracy, a transmission gear set is further provided between the locking gear 403 and the first gear ring 2011 in the second mounting seat 60 for adjusting the speed and torque of the locking gear 403. In addition, in order to avoid the first transmission cylinder 201 from vibrating during the rotation process, the first mounting seat 50 and the second mounting seat 60 are provided with a transmission gear set. A first limit plate for fixing the first transmission cylinder 201 is also provided in the seat 60, and a bearing is also installed at the position of the first limit plate on the first transmission cylinder 201 to reduce the friction force on the first transmission cylinder 201 when it rotates, and a bearing connected to the connecting cylinder 101 is also provided on the outside of the first transmission cylinder 201 to reduce the contact area between the first transmission cylinder 201 and the connecting cylinder 101, thereby avoiding that when the first transmission cylinder 201 rotates, the connecting cylinder 101 rotates under the action of the friction force given by the first transmission cylinder 201, causing the rotating seat 10 to rotate, thereby affecting the adjustment accuracy. The driving member 401 can adopt a driving cylinder or other linear driving mechanism.

[0048] During operation, the staff places the workpiece to be processed on the rotating seat 10. In this embodiment, a placement table for holding the workpiece to be processed is provided on the rotating seat 10. The driving assembly 30 drives the first transmission cylinder 201 to rotate, so that the first gear ring 2011 of the first transmission cylinder 201 located in the second mounting seat 60 rotates synchronously, thereby driving the locking gear 403 connected to the first gear ring 2011 to rotate, and then driving the first driven gear ring 102 connected to the locking gear 403 to rotate, and the rotating seat 10 rotates relative to the first mounting seat 50 and the second mounting seat 60. The locking member 402 is rotated to adjust the angle of the workpiece to be processed until the workpiece to be processed is adjusted to a suitable position. At this time, the driving assembly 30 stops working, and the driving member 401 drives the locking member 402 to move toward the first protruding tooth 4034 provided at the bottom of the locking gear 403 until the locking member 402 is engaged with the first protruding tooth 4034 to lock the locking gear 403, thereby fixing the position of the rotating base 10 to prevent the rotating base 10 from moving during the processing; when unlocking, it is only necessary for the driving member 401 to drive the locking member 402 to move in the direction away from the first protruding tooth 4034.

[0049] Compared with traditional machine tools that use the self-locking function of the drive motor to lock the rotating seat 10, the present invention cooperates with the driving member 401, the locking member 402 and the locking gear 403 to lock the rotating seat 10 by clamping the locking member 402 with the first protruding tooth 4034 at the bottom of the locking gear 403, and can convert the force generated when the rotating seat 10 is locked into the first protruding tooth 4034 into a longitudinal pressure acting on the drive assembly 30, effectively avoiding the force directly acting on the drive motor and causing damage to the drive motor, and has higher reliability.

[0050] Specifically, in the present invention, the locking member 402 includes a latch 4021 and a pressing member 4022. The latch 4021 is located below the locking gear 403, and a side of the latch 4021 facing the locking gear 403 is provided with a plurality of second protruding teeth 4023 adapted to the first protruding teeth 4034.

[0051] The driving end of the driving member 401 is provided with a mounting column 4011, the locking member 4021 is sleeved on the mounting column 4011 and can move radially or axially relative to the mounting column 4011, and the tightening member 4022 is provided between the locking member 4021 and the driving end of the driving member 401, so as to be suitable for being tightened on the locking member 4021 when the driving member 401 drives the first protruding tooth 4034 to engage with the second protruding tooth 4023.

[0052] When the locking gear 403 is in a state of being stationary, the latch 4021 and the locking gear 403 are kept in a state of relative motion. The driving end of the driving member 401 can still continue to approach the locking gear 403 to press the latch 4022 against the latch 4021 to complete the locking of the first convex tooth 4034. After the locking is completed, the rotating seat 10 is subjected to The external force will be transmitted to the second protruding tooth 4023 through the connecting cylinder 101, the first driven ring gear 102, the locking gear 403, and the first protruding tooth 4034 in sequence. However, since the contact surface between the second protruding tooth 4023 and the first protruding tooth 4034 is an inclined surface, and the first protruding tooth 4034 and the latch 4021 are an integrated structure, the force acting on the first protruding tooth 4034 can be divided into a longitudinal force acting longitudinally on the latch 4021 and a lateral force acting horizontally on the latch 4021. Among them, the longitudinal force will act on the driving member 401 through the latch 4021 and the retaining member 4022, and be offset by the driving force generated by the driven member 401, while the lateral force will be offset by the friction force generated between the latch 4021 and the retaining member 4022. The first protruding tooth 4034 cannot drive or move relative to the second protruding tooth 4023, thereby locking the locking gear 403 to prevent the rotating seat 10 from rotating.

[0053] In addition, in order to avoid the lateral force acting on the fastener 4021 being greater than the friction force generated between the fastener 4021 and the abutment, in this embodiment, the pressure angle of the first protruding tooth 4034 and the second protruding tooth 4023 is greater than 60° to reduce the lateral force acting on the fastener 4021 and increase the longitudinal force acting on the fastener 4021. Since the friction force of an object is related to the pressure acting on the object and the friction coefficient of the contact surface with the object, increasing the longitudinal force acting on the second protruding tooth 4023, and then using the abutment 4022 made of rubber material with a high friction coefficient, can further improve the friction between the fastener 4021 and the abutment 4022. In this embodiment, the rubber can be made of hard rubber, which has high hardness, small compression, and high friction coefficient, and can prevent it from undergoing secondary deformation after being subjected to the pressure of the first protruding tooth 4034. Of course, in this embodiment, the clamping member 4022 can also be made of other materials, as long as its friction coefficient with the steel surface is greater than 0.6, and in this embodiment, a pattern can be provided on the contact surface between the snap member 4021 and the abutting member to further enhance the friction between it and the abutting member.

[0054] In order to prevent the driving member 401 from directly pushing out the locking gear 403, in this embodiment, the locking gear 403 includes a body rotatably mounted on the mounting plate 601 and a holding member 4033 disposed below the mounting plate 601;

[0055] The top end of the clamping member 4033 passes through the mounting plate 601 and is slidably connected to the body. A plurality of first protruding teeth 4034 are provided on the end surface of the bottom end of the clamping member 4033.

[0056] A fixing plate is provided on the outer side of the clamping member 4033, and a limiting cover 4035 extends from the edge of the fixing plate toward the main body. The limiting cover 4035 is suitable for abutting against the mounting plate 601 under the drive of the driving member 401 after the first protruding tooth 4034 is engaged with the second protruding tooth 4023.

[0057] During operation, the driving member 401 drives the second protruding tooth 4023 to move toward the first protruding tooth 4034. The second protruding tooth 4023 contacts the first protruding tooth 4034 and drives the first protruding tooth 4034 and the holding member 4033 to move upward synchronously until the holding member 4033 moves to the maximum thread. At this time, the holding member 4033 cannot move further upward and remains relatively stationary. At this time, the second protruding tooth 4023 will slide along the surface of the first protruding tooth 4034 until it contacts the first protruding tooth 4034. The second protruding tooth 4023 and the first protruding tooth 4034 are engaged, and remain relatively stationary, that is, the axial displacement of the latch 4021 is fixed, the driving end of the driving member 401 continues to move upward, the fastening member 4022 is deformed to press against the latch 4021, and the limiting cover 4035 contacts the lower end surface of the mounting plate 601, so that the fastening member 4022 will be firmly pressed against the latch 4021 to prevent relative movement, thereby locking the locking gear 403 and completing the fixation of the rotating seat 10.

[0058] At the same time, in order to prevent the pressure generated by the driving member 401 from acting entirely on the mounting plate 601 and the locking gear 403, a limit assembly 80 is further provided in this embodiment to share the pressure. The limit assembly 80 is arranged at a position of the limit cover 4035 of the cover body 70 which is arranged on the outside of the driving member 401. The top of the cover body 70 is fixedly connected to the mounting plate 601 so as to be able to wrap the driving member 401, the clamping member 4033 and the locking member 402, thereby protecting the driving member 401, the clamping member 4033 and the locking member 402. The limit assembly 80 includes a limit rod 801, a fixing seat 802 and a first limit spring 803, wherein an opening is opened on the cover body 70, the limit rod 801 is arranged in the opening, and can move along the opening toward or away from the limit cover 4035, the fixing seat 802 is installed at one end of the limit rod 801 away from the limit cover 4035, and The first limit spring 803 is sleeved on the limit rod 801, and the two ends of the first limit spring 803 are respectively fixed to the fixing seat 802 and the cover body 70, so as to provide an elastic force for the limit rod 801 to move toward the limit cover 4035, so that the limit rod 801 can be pressed against the outside of the limit cover 4035. At the same time, an annular groove 4038 is provided on the outside of the limit cover 4035. When the driving member 401 drives the second When the protruding tooth 4023 drives the holding part 4033 to move upward, the limiting cover 4035 will move upward with the holding part 4033 until the top of the limiting cover 4035 abuts against the lower end surface of the mounting plate 601. At this time, the annular groove 4038 moves to the same height as the limiting rod 801, so that the limiting rod 801 can be inserted into the annular groove 4038 under the elastic action of the first limiting spring 803 to limit the continued upward movement of the holding part 4033.

[0059] In addition, in order to facilitate the release of the locking spring lock, the limit rod 801 can be disengaged from the annular groove 4038. Therefore, in this embodiment, a chamfer is provided on the upper edge of the annular groove 4038, and the limit rod 801 is provided with an inclined surface adapted to the chamfer at one end close to the limit cover 4035. A return spring 4036 is provided on the fixed plate, and one end of the return spring 4036 abuts against the fixed plate, and the other end abuts against the mounting plate 601, so as to provide an elastic force for the clamping member 4033 to move away from the mounting plate 601. When unlocking, the clamping member 4033 moves downward under the elastic force of the return spring 4036, and the limit cover 4035 moves downward together. During the downward movement, the chamfer inside the annular groove 4038 contacts the inclined surface of the limit rod 801, so that the limit rod 801 and the annular groove 4038 slide relative to each other and disengage from the annular groove 4038.

[0060] In addition, in order to facilitate further processing of the workpiece, a rotating table 90 is further provided in this embodiment. The rotating table 90 is rotatably connected to the rotating base 10, and the bottom end of the rotating table 90 extends into the rotating table 90 and is installed with a linkage gear ring 901;

[0061] The main body includes an input gear 4031 and an output gear 4032. The output gear 4032 is rotatably connected to the mounting plate 601 and is transmission-connected to the first driven ring gear 102. The holding member 4033 is slidingly connected to the output gear 4032. A mounting portion 40321 is provided at the top of the output gear 4032. A mounting groove 40311 is provided at the bottom of the input gear 4031 to snap-fit ​​with the mounting portion 40321. The input gear 4031 is transmission-connected to the first ring gear 2011 disposed in the second mounting seat 60. Specifically, in this embodiment, the output gear 4032 can be connected to the first driven ring gear 102 via a transmission gear set, and the input gear 4031 can be connected to the first ring gear 2011 via a transmission gear set to reduce the rotational speed and prevent excessive rotational speed from affecting the adjustment accuracy.

[0062] The transmission assembly 20 further includes a second transmission cylinder 202, which is sleeved on the outside of the first transmission cylinder and sequentially passes through the first mounting seat 50, the rotating seat 10, and the second mounting seat 60. The second transmission cylinder 202 is placed inside the rotating seat 10, and a second driven ring gear 2021 is installed on the outside of the second transmission cylinder 202. The second driven ring gear 2021 is meshed with the linkage ring gear 901. A second ring gear 2022 is provided on the outside of one end of the second transmission cylinder 202 placed inside the second mounting seat 60.

[0063] It also includes a switching gear 100, which is installed on the top of the input gear 4031 and fixed to the input gear 4031. A connecting member 4037 is provided at the top of the holding member 4033. The holding member 4033 is rotatably connected to the switching gear 100 through the connecting member 4037, so as to be suitable for driving the input gear 4031 to separate from the output gear 4032 through the connecting member 4037 during the process of the driving member 401 driving the first protruding tooth 4034 to engage with the second protruding tooth 4023, and making the switching gear 100 engage with the second gear ring 2022.

[0064] After the staff rotates the rotating seat 10 to a suitable angle, when the orientation of the workpiece to be processed needs to be adjusted, the driving member 401 can drive the locking member 4021 to move toward the locking gear 403, that is, the main body, so that the second protruding tooth 4023 on the locking member 4021 contacts the first protruding tooth 4034 on the locking member 4021, and drives the first protruding tooth 4034 to drive the locking member 4021 to move upward together, and drives the switching gear 100 and the input gear 4031 together through the connecting member 4037. In the same upward movement, the input gear 4031 and the output gear 4032 are separated. At the same time, the switching gear 100 is engaged with the second gear ring 2022. In order to facilitate the engagement of the switching gear 100 with the second gear ring 2022, in this embodiment, a guide bevel can be provided on the tooth edges of the switching gear 100 and the second gear ring 2022. After the switching gear ring is engaged with the second gear ring 2022, the first gear ring 2011 in the second mounting seat 60 can drive the input gear 4031 to engage with the output gear 4032 under the drive of the driving assembly 30. The gear 4031 rotates, and then drives the second ring gear 2022 to rotate through the switching gear 100 fixed to the input gear 4031, so that the second transmission cylinder 202 fixed to the second ring gear 2022 drives the linkage ring gear 901 to rotate through the second driven ring gear 2021. The rotating table 90 rotates to adjust the orientation of the workpiece to be processed, facilitating processing. In this process, the first protruding tooth 4034 meshes with the second protruding tooth 4023, so that the clamping member 4033 locks the output gear 4032. To prevent the rotating base 10 from rotating; after the angle adjustment is completed, the driving member 401 drives the locking member 4021 to move away from the main body, so that the switching gear 100 and the second ring gear 2022 are separated, and the mounting groove 40311 provided at the bottom of the input gear 4031 is plugged into the mounting portion 40321 provided at the top of the output gear 4032 to complete the connection between the input gear 4031 and the output gear 4032. At this time, the driving assembly 30 can drive the rotating base 10 to rotate;In order to facilitate the re-insertion and matching of the input gear 4031 with the conveying gear after separation, in this embodiment, a plurality of slide grooves are evenly opened in the radial direction of the notch of the installation groove 40311. The slide grooves extend along the depth direction of the installation groove 40311. The notch of the slide grooves is provided with guide slopes. A plurality of sliders adapted to the slide grooves are evenly provided on the outer side of the installation portion 40321. The provided guide slopes can facilitate the guidance of the sliders into the slide grooves, thereby connecting the input gear 4031 and the output gear 4032 as a whole. At the same time, the reset spring 4036 can drag the clamping member 4033, the switching gear 100 connected to the clamping member 4033 via the connecting member 4037, and the input gear 4031 downward when the first protruding tooth 4034 separates from the second protruding tooth 4023, thereby tightly connecting the input gear 4031 and the output gear 4032, preventing the input gear 4031 from separating from the output gear 4032 during operation. The power of the input gear 4031 can be effectively transmitted to the output gear 4032 via the slider.

[0065] In addition, to prevent the rotating table 90 from rotating under the action of external force after the switching gear 100 is separated from the second ring gear 2022, thereby affecting the processing of the workpiece to be processed, an elastic limiting assembly 11 is further provided in this embodiment to limit the rotation of the second transmission cylinder 202, thereby limiting the rotation of the rotating table 90 through the second transmission cylinder 202;

[0066] Specifically, the elastic limiting assembly 11 includes a first limiting gear ring 1101, a second limiting gear ring 1102 and a second limiting spring 1103. The first limiting gear ring 1101 is arranged on the outside of the inner part of the second transmission cylinder 202 placed on the rotating seat 10, and can slide along the axial direction of the second transmission cylinder 202. The second limiting gear ring 1102 is fixedly installed on the inner wall of the rotating seat 10 and is coaxial with the first limiting gear ring 1101. One end of the second limiting spring 1103 is arranged on the inner side of the second limiting gear ring 1102 and is fixedly connected to the inner wall of the rotating seat 10, and the other end is fixedly connected to the first limiting gear ring 1101, so as to provide the first limiting gear ring 1101 with an elastic force for engaging with the second limiting gear ring 1102. Since the rotating platform 90 is usually in a horizontal state or at a certain angle to the horizontal plane during normal use, The force exerted on the linkage gear ring 901 is generally the component force of the gravity of the rotating table 90 itself and the workpiece to be processed. Since the linkage gear ring 901 is rotatably connected to the rotating table 90, most of the force acts on the rotating base 10 through the linkage gear ring 901, and only a small part of the force can act in the tangential direction of the linkage gear to drive the linkage gear to rotate. The magnitude of the force is not enough to overcome the elastic force of the second limit spring 1103. The first limit gear ring 1101 and the second limit gear ring 1102 are in a meshing state to limit the rotation of the second transmission cylinder 202. When the driving assembly 30 rotates in conjunction with the second transmission cylinder 202, the second transmission cylinder 202 drives the first limit gear ring 1101 to rotate. At this time, the first limit gear ring 1101 will slide along the inclined surface of the teeth on the second limit gear ring 1102 and separate from it, so that the second transmission cylinder 202 can rotate freely.

[0067] More specifically, in order to facilitate the rotation of the second transmission cylinder 202 so that the first limiting gear ring 1101 can be separated from the second limiting gear ring 1102, the pressure angle of the teeth on the first limiting gear ring 1101 and the second limiting gear ring 1102 in the present invention is greater than 60°. This setting method allows more force to act in the axial direction of the first limiting gear ring 1101 rather than the radial direction when the first limiting gear ring 1101 rotates, so that the first limiting gear ring 1101 can be more easily separated from the second limiting gear ring 1102 when the second transmission cylinder 202 rotates.

[0068] At the same time, in order to prevent the second transmission cylinder 202 from shaking during operation, in this embodiment, support plates are further provided in the first drive seat and the second drive seat, and the two ends of the second transmission cylinder 202 are rotatably connected to the two support plates respectively, and bearings are also provided at the connection position between the support plates and the second transmission cylinder 202. In addition, bearings are also provided on the inside of the second transmission cylinder 202. The second transmission cylinder 202 is connected to the first transmission cylinder 201 through bearings to prevent the second transmission cylinder 202 from rotating when the first transmission cylinder 201 rotates, and a bearing is also provided at the connection position between the second transmission cylinder 202 and the connecting cylinder 101 to separate the second transmission cylinder 202 from the connecting cylinder 101.

[0069] In addition, in order to facilitate the confirmation of the rotation angle, a detection component is also provided in the first mounting seat 50 in this embodiment. The detection component can adopt a grating sensor or a Moore sensor. The receiving end of the detection component is installed in the first mounting seat 50, and the transmitting end of the detection component is installed in the second transmission cylinder 202 and the connecting cylinder 101. The part is placed on the first mounting seat 50, so that the rotation angle of the second transmission cylinder 202 and the connecting cylinder 101 can be detected in real time when the second transmission cylinder 202 and the connecting cylinder 101 are working, and the rotation angle of the rotating seat 10 and the rotating table 90 can be calculated.

[0070] The above content is a further detailed description of the present invention in conjunction with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, they can make several simple deductions or substitutions without departing from the concept of the present invention, which should be regarded as falling within the scope of protection determined by the claims submitted for the present invention.

Claims

1. A lathe micro-motion platform, characterized in that: include: A rotating seat, a transmission assembly, a drive assembly, a locking assembly, and a first mounting seat and a second mounting seat that are hollow. Connecting cylinders are provided at both ends of the rotating seat. The first mounting seat and the second mounting seat are provided at both ends of the rotating seat and are respectively rotatably connected to the two connecting cylinders. A first driven gear ring is provided on the outer side of the connecting cylinder placed in the second mounting seat. The transmission assembly includes a first transmission cylinder, the first transmission cylinder being coaxial with the two connecting cylinders, and having two ends of the first transmission cylinder extending through the two connecting cylinders and being mounted with a first gear ring. The drive assembly is disposed within the first mounting seat and is in transmission connection with the first gear ring disposed within the first mounting seat. The locking assembly is arranged in the second mounting seat, and the locking assembly includes a driving member, a locking member and a locking gear. A mounting plate is provided in the second mounting seat, the locking gear is mounted on the mounting plate and is rotatably connected to the mounting plate, the locking gear is transmission-connected to the first driven ring gear, and the first ring gear disposed in the second mounting seat is transmission-connected to the locking gear, a plurality of first protruding teeth are provided at the bottom of the locking gear, and the plurality of first protruding teeth are distributed in a circumferential array with the axis center of the locking gear as the center, the driving member is located below the mounting plate, the locking member is mounted on the driving end of the driving member, and is adapted to move toward the direction of the first protruding teeth under the drive of the driving member so as to engage with the first protruding teeth; The locking member includes a snap member and a pressing member, the snap member is located below the locking gear, and a side of the snap member facing the locking gear is provided with a plurality of second protruding teeth adapted to the first protruding teeth; The driving end of the driving member is provided with a mounting post, the fastener is sleeved on the mounting post and can move radially or axially relative to the mounting post, and the pressing member is provided between the fastener and the driving end of the driving member, so as to be pressed against the fastener when the driving member drives the first protruding tooth to engage with the second protruding tooth; The locking gear includes a body rotatably mounted on the mounting plate and a clamping member disposed below the mounting plate; a fixing plate is disposed on the outer side of the clamping member, and a limiting cover extends from the edge of the fixing plate toward the body; The cam is secured to the outside of the housing and is adapted to engage said first and second limit switches when the cam is engaged with the first support member and the first support member is engaged with the first support member.

2. The lathe micro-motion platform according to claim 1, characterized in that: The pressure angle between the first protruding teeth and the second protruding teeth is greater than 60°, and the pressing member is made of rubber.

3. The lathe micro-motion platform according to claim 1, characterized in that: The top end of the clamping member passes through the mounting plate and is slidably connected to the body, and a plurality of first protruding teeth are provided on the end surface of the bottom end of the clamping member; The limiting cover is adapted to abut against the mounting plate under the drive of the driving member after the first protruding teeth are engaged with the second protruding teeth.

4. The lathe micro-motion platform according to claim 1, characterized in that: A return spring is provided on the fixing plate, one end of the return spring abuts against the fixing plate, and the other end abuts against the mounting plate, so as to provide an elastic force for the clamping member to move away from the mounting plate. A chamfer is provided on the upper edge of the annular groove, and an inclined surface adapted to the chamfer is formed on the limit rod near one end of the limit cover, so that when the clamping member moves away from the mounting plate, the inclined surface can slide with the chamfer, thereby driving the limit rod to separate from the annular groove.

5. The lathe micro-motion platform according to claim 3, characterized in that: It also includes a rotating platform, the rotating platform is rotatably connected to the rotating base, and the bottom end of the rotating platform extends into the rotating platform and is installed with a linkage gear ring; The main body includes an input gear and an output gear. The output gear is rotatably connected to the mounting plate and is in transmission connection with the first driven ring gear. The clamping member is slidably connected to the output gear. The top of the output gear is provided with a mounting portion. The bottom of the input gear is provided with a mounting groove that snap-fits with the mounting portion. The input gear is in transmission connection with the first ring gear placed in the second mounting seat. The transmission assembly also includes a second transmission cylinder, which is sleeved on the outside of the first transmission and passes through the first mounting seat, the rotating seat and the second mounting seat in sequence. The second transmission cylinder is placed in the rotating seat and the outer side thereof is mounted with a second driven gear ring, the second driven gear ring is meshed with the linkage gear ring, and the outer side of one end of the second transmission cylinder placed in the second mounting seat is provided with a second gear ring; It also includes a switching gear, which is installed on the top of the input gear and fixedly connected to the input gear. A connecting member is provided on the top of the clamping member, and the clamping member is rotatably connected to the switching gear through the connecting member, so as to be suitable for driving the input gear and the output gear to separate through the connecting member during the process of the driving member driving the first convex tooth to engage with the second convex tooth, and making the switching gear engage with the second ring gear.

6. The lathe micro-motion platform according to claim 5, characterized in that: The slot opening of the installation slot is evenly provided with a plurality of slide grooves along the radial direction, the slide grooves extend along the depth direction of the installation slot, the slot opening of the slide groove is provided with a guide slope, and the outer side of the installation portion is evenly provided with a plurality of sliders adapted to the slide grooves.

7. The lathe micro-motion platform according to claim 6, characterized in that: It also includes an elastic limiting component, which includes a first limiting gear ring, a second limiting gear ring and a second limiting spring. The first limiting gear ring is arranged on the outside of the part of the second transmission cylinder placed in the rotating seat, and can slide along the axial direction of the second transmission cylinder. The second limiting gear ring is fixedly installed on the inner wall of the rotating seat and is coaxial with the first limiting gear ring. One end of the second limiting spring is arranged on the inner side of the second limiting gear ring and is fixedly connected to the inner wall of the rotating seat, and the other end is fixedly connected to the first limiting gear ring, so as to be suitable for providing the first limiting gear ring with an elastic force for engaging with the second limiting gear ring.

8. The lathe micro-motion platform according to claim 7, characterized in that: The pressure angles of the teeth on the first position-limiting gear ring and the second position-limiting gear ring are greater than 60°.

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