Three-axis linkage spindle mechanism

Abstract

The application relates to a three-axis linkage spindle mechanism which comprises a mounting plate, a movable plate one, a movable plate two and a spindle, the movable plate two is provided with a sleeve, the mounting plate and the movable plate one are provided with a let-hole, and the sleeve is slidably connected with a sliding sleeve. The movable plate one, the movable plate two and the sleeve are arranged in a penetrating mode, the overall volume of the equipment is reduced, the overall surrounding size of the mechanism is reduced, the occupied space of equipment installation and surrounding machining is saved, the space utilization rate is higher, the overall structure is more compact, the manufacturing cost and the assembly and debugging cost of the equipment are reduced, the position cooperation structure of the movable plate one, the movable plate two and the sleeve makes the overall stress point symmetrical, the sliding sleeve and the spindle are lifted by the sleeve, the gravity center of the spindle is located at the center of the mechanism, the problems of one-side stress, gravity center deviation and load imbalance are avoided, the structure load stability is good, the movable plate one, the movable plate two and the sleeve can be installed at any angle according to the workpiece machining requirement, the three-axis linkage spindle mechanism is suitable for multi-angle and special-shaped workpiece machining scenes, and the application range is wider.

Description

Technical Field

[0001] This application relates to the field of parts processing, and in particular to a three-axis linkage spindle mechanism. Background Technology

[0002] In the field of precision machine tools and automated processing equipment, the three-axis linkage spindle mechanism is the core execution component. It mainly drives the spindle equipped with tool holder to complete precision machining processes such as multi-point and multi-dimensional cutting, grinding, and drilling of workpieces through sliding adjustment in the three-axis direction.

[0003] Currently, most mainstream three-axis linkage spindle mechanisms on the market adopt a split-type stacked sliding structure. Their three-axis sliding components are mostly independently arranged and layered, resulting in a dispersed overall layout. Each sliding adjustment structure occupies a large space. Especially in the circumferential encircling machining conditions, the traditional structure has a large overall outer enclosure size, and the encircling layout requires a large area, resulting in extremely low space utilization. This makes the entire spindle drive mechanism bulky and heavy, unable to adapt to the assembly requirements of miniaturized and integrated precision machining equipment. The applicable scenarios of the equipment are limited and need to be improved. Summary of the Invention

[0004] To address the issues of traditional three-axis linkage spindle mechanisms, which employ a split-type stacked sliding structure, resulting in a dispersed layout, large outer enclosure size, large footprint, low space utilization, and limited applicability in circumferential encircling machining conditions, this application provides a three-axis linkage spindle mechanism.

[0005] This application provides a three-axis linkage spindle mechanism, which adopts the following technical solution: A three-axis linkage spindle mechanism includes a mounting plate, a first movable plate, a second movable plate, and a spindle. The first movable plate is slidably connected to the mounting plate. The second movable plate is located on the side of the first movable plate away from the mounting plate and is slidably connected to the first movable plate. The sliding direction of the second movable plate is perpendicular to the sliding direction of the first movable plate. The mounting plate is provided with a first driving component for moving the first movable plate. The first movable plate is provided with a second driving component for moving the second movable plate. The second movable plate is provided with a sleeve. The mounting plate and the first movable plate have clearance holes. The sleeve passes through the clearance holes of the mounting plate and the first movable plate. A sliding sleeve is slidably connected to the sleeve. The sliding direction of the sliding sleeve is perpendicular to the sliding directions of the first and second movable plates. The second movable plate is provided with a third driving component for moving the sliding sleeve. The spindle is rotatably connected to the sliding sleeve. The sliding sleeve is provided with a fourth driving component for rotating the spindle.

[0006] By adopting the above technical solution, the movable plate 1, movable plate 2 and sleeve are arranged in a through-type cooperation, which abandons the traditional scattered layout of separate stacking, reduces the overall volume of the equipment, reduces the overall enclosed size of the mechanism, saves the space occupied by equipment installation and enclosed processing, has a higher space utilization rate, and a more compact overall structure. There is no need to add extra auxiliary supports, extended installation bases and other redundant parts. The number of parts is less and the assembly process is simpler, which reduces the manufacturing cost and assembly and debugging cost of the equipment. Meanwhile, this application sets the second movable plate of the bearing sleeve on the side of the first movable plate away from the mounting plate, and the sleeve penetrates the first movable plate in the opposite direction to form a nested fit with the clearance hole of the mounting plate. This positional fit structure makes the overall force point centrally symmetrical. The sleeve supports the entire sliding sleeve and spindle, and can concentrate the center of gravity of the spindle in the center of the mechanism, avoiding the problems of unilateral force, center of gravity shift, and load imbalance. The structure has excellent load-bearing stability and can be installed at any angle according to the workpiece processing requirements. Even under the tilted installation condition, it can still maintain stable operation without shaking or shifting, and will not have an adverse effect on the processing accuracy. It can adapt to various multi-angle and irregular workpiece processing scenarios and has a wider range of applications.

[0007] Optionally, the movable plate 2 and the sleeve are fixed together.

[0008] By adopting the above technical solution, the overall structure is more rigid, avoiding the problems of loosening, shifting, and deformation at the connection between the sleeve and the movable plate.

[0009] Optionally, the sleeve is provided with a mounting block, the mounting block is provided with a sliding groove, the sliding sleeve is provided with a sliding rail, the sliding rail is slidably connected in the sliding groove, and the sleeve is also provided with a shim, the shim is located on the side of the mounting block away from the sliding rail, the shim abuts against the mounting block, so that the inner wall of the sliding groove fits the sliding rail.

[0010] By adopting the above technical solution, the sliding pair formed by the slide groove and the slide rail is used to realize the stable sliding of the slide sleeve along the sleeve axis. By using the shim to abut against the mounting block, a pre-tightening effect can be applied to the mounting block, which can make the inner wall of the slide groove fit tightly with the slide rail. This can eliminate the assembly gap between the slide rail and the slide groove, reduce the movement and gap wobble during the sliding process of the slide sleeve, improve the sliding guidance accuracy and smoothness of the slide sleeve, further reduce the risk of vibration during the machining process, and help ensure the machining accuracy of the spindle.

[0011] Optionally, the sleeve includes a cylindrical body, a positioning block, and a positioning plate. The cylindrical body is mounted on the second movable plate and has a through hole. The sliding sleeve is slidably connected to the through hole. An installation groove is formed on the outer peripheral wall of the cylindrical body, which communicates with the through hole, and one end of the installation groove penetrates the cylindrical body. The shim and the mounting block are located in the installation groove. The positioning block is located on the side of the shim away from the mounting block. The positioning block is provided with a positioning bolt one and a positioning bolt two. The positioning bolt one is threadedly connected to the cylindrical body. The positioning bolt two passes through the shim and is threadedly connected to the mounting block. The positioning plate covers the through opening of the installation groove. The positioning plate is provided with a positioning bolt three, which is threadedly connected to the cylindrical body.

[0012] By adopting the above technical solution, the mounting block and shim are integrated and arranged inside the mounting groove of the cylinder, resulting in a high degree of structural integration. No additional space is required outside the cylinder, further ensuring the overall compactness of the mechanism. Positioning bolt one locks the positioning block to the cylinder. Positioning bolt two passes through the positioning block and the shim and is threaded to the mounting block. Tightening positioning bolt two will pull the mounting block. With the help of the shim, pre-tightening adjustment is achieved, which drives the slide groove and the slide rail to fit tightly. This can eliminate the assembly gap between the slide rail and the slide groove, suppress the slippage and gap wobbling during the sliding process of the slide sleeve, improve the sliding guide accuracy and smoothness of the slide sleeve, and reduce the risk of processing vibration. The through opening of the mounting slot is sealed by the positioning plate, and the positioning bolts lock the positioning plate to the cylinder. The positioning plate forms an axial limit for each component in the mounting slot, while preventing machining debris and dust from entering the sliding mating parts, reducing wear and jamming, and improving the long-term working reliability of the mechanism. The entire set of preload adjustment components is arranged on the outside of the cylinder, so the preload adjustment and component disassembly and replacement can be completed without disassembling the internal sliding sleeve. The assembly, debugging and subsequent maintenance and repair operations are convenient.

[0013] Optionally, the mounting plate is provided with lifting rings.

[0014] By adopting the above technical solution, the lifting ring is set on the mounting plate, and the lifting load is directly borne by the mounting plate. The external lifting force will not be transmitted to sliding parts such as movable plate one and movable plate two, avoiding the sliding pair from being squeezed and misaligned by external force, and protecting the assembly accuracy of the sliding pair. Movable plate one is assembled on the mounting plate, movable plate two is assembled on movable plate one, and sleeve is assembled on movable plate two. Each component is matched in sequence. Combined with the center of gravity structure formed by movable plate two and sleeve, the force on both sides of the mechanism is more balanced during the lifting process, and it is not easy to wobble, overturn or shake. The lifting posture is stable and reliable, which facilitates the transfer of the mechanism, on-site positioning and assembly, and subsequent disassembly and maintenance.

[0015] Optionally, the drive assembly includes a lead screw rotatably connected to the mounting plate and a drive component disposed on the mounting plate. The lead screw is threadedly connected to a movable plate, and the drive component drives the lead screw to rotate.

[0016] By adopting the above technical solution, the screw drive has the characteristics of good transmission rigidity and high positioning accuracy, which can accurately control the feed displacement of the movable plate, and the motion response is smooth, effectively reducing the axial movement phenomenon during the movement of the movable plate.

[0017] Optionally, the movable plate includes a plate body slidably connected to the mounting plate and an extension block disposed on the plate body. The extension block is located at one end of the plate body. The lead screw is threadedly connected to the extension block. The driving member is located on one side of the extension block along the sliding direction of the plate body and on the side of the extension block near the center of the plate body.

[0018] By adopting the above technical solution, the extension block is set at the end of the plate, and the drive component is arranged on the side of the extension block along the sliding direction of the plate and close to the center of the plate. This avoids the drive component from extending outward, which would increase the overall volume of the mechanism, reduce the space occupation caused by the protruding structure, optimize the overall compactness of the mechanism, and meet the assembly requirements of miniaturization and integration of equipment.

[0019] Optionally, the cylinder is threaded with a clamping bolt, which is located on opposite sides of the mounting block perpendicular to the slide rail axis, and the clamping bolt abuts against the mounting block.

[0020] By adopting the above technical solution, the mounting block is embedded in the mounting groove of the cylinder and adheres to the groove wall on one side to achieve initial positioning. Then, the mounting block is laterally tightened and locked by the clamping bolts on both sides of the cylinder from the direction perpendicular to the axial direction of the slide rail. This forms a bidirectional positioning constraint on the mounting block, restricting the left and right offset of the mounting block and the assembly gap. This improves the installation positioning accuracy of the mounting block in the mounting groove, avoids loosening and displacement of the mounting block due to long-term reciprocating force, and ensures stable and consistent alignment accuracy between the slide groove and the slide rail.

[0021] Optionally, the driving component four includes a drive motor mounted on the sliding sleeve, a first transmission wheel rotatably connected to the sliding sleeve, a second transmission wheel coaxially mounted on the main shaft, and a transmission belt tensioned on the outer sides of the first and second transmission wheels. The drive motor drives the first transmission wheel to rotate.

[0022] By adopting the above technical solution and using belt drive for power transmission, some of the vibrations generated during the spindle machining process can be buffered and absorbed, reducing the transmission of vibrations to the drive motor and protecting the drive motor.

[0023] In summary, this application includes at least one of the following beneficial technical effects: 1. The through-type arrangement of movable plate one and movable plate two with the sleeve reduces the overall volume of the equipment and the overall enclosed size of the mechanism, saving space occupied by equipment installation and enclosed processing. The space utilization rate is higher and the overall structure is more compact, reducing the manufacturing cost and assembly and debugging cost of the equipment. The positional matching structure of movable plate one and movable plate two with the sleeve makes the overall force points centrally symmetrical. Relying on the sleeve to support the sliding sleeve and the main shaft, the center of gravity of the main shaft is located in the center of the mechanism, avoiding the problems of unilateral force, center of gravity offset, and load imbalance. The structure has good load-bearing stability and can be installed at any angle according to the workpiece processing requirements, adapting to multi-angle and irregular workpiece processing scenarios, and has a wider range of applications. 2. By using the shims to abut against the mounting block, a pre-tightening effect can be applied to the mounting block, causing the inner wall of the slide groove to fit tightly with the slide rail. This can eliminate the assembly gap between the slide rail and the slide groove, reduce the movement and gap wobble during the sliding process of the slide sleeve, improve the sliding guidance accuracy and smoothness of the slide sleeve, further reduce the risk of vibration during the machining process, and help ensure the machining accuracy of the spindle. 3. The lifting ring is mounted on the mounting plate, and the lifting load is directly borne by the mounting plate, avoiding external forces acting on movable plate one and movable plate two to prevent the sliding pair from being squeezed and misaligned, thus protecting the assembly accuracy of the sliding pair. Movable plate one is mounted on the mounting plate, movable plate two is mounted on movable plate one, and the sleeve is mounted on movable plate two. Each component is matched in sequence. Combined with the centrally located center of gravity structure of movable plate two and sleeve, the force on both sides of the mechanism is balanced during lifting, making it less prone to swaying and shaking, and facilitating the mechanism's transfer, assembly, positioning, disassembly, and maintenance. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall embodiment 1 of this application.

[0025] Figure 2 This is an overall schematic diagram from another perspective of Embodiment 1 of this application, mainly showing the structure of drive component one and drive component two.

[0026] Figure 3 This is a partial cross-sectional view of Embodiment 1 of this application, mainly showing the structure of the driving component three.

[0027] Figure 4 for Figure 3 The enlarged view of section A mainly shows the structure of the mounting block and the shim plate.

[0028] Figure 5 This is a partial structural diagram of Embodiment 1 of this application, mainly showing the structure of the slide.

[0029] Figure 6 This is a partial structural diagram of Embodiment 1 of this application, mainly showing the structure of the clamping bolt.

[0030] Figure 7This is a schematic diagram of the overall embodiment 2 of this application.

[0031] Figure 8 This is a partial cross-sectional view of Embodiment 2 of this application, mainly showing the structure of the driving component four.

[0032] Explanation of reference numerals in the attached drawings: 1. Mounting plate; 2. Movable plate one; 21. Plate body; 22. Extension block; 3. Movable plate two; 4. Main shaft; 5. Lifting ring; 6. Drive assembly one; 61. Lead screw one; 62. Drive component one; 7. Drive assembly two; 71. Lead screw two; 72. Drive component two; 8. Clearance hole; 9. Sleeve; 91. Cylinder body; 911. Through hole; 912. Mounting groove; 92. Positioning block; 93. Positioning plate; 10. Sliding sleeve; 11. Drive assembly three; 111. Lead screw three; 112. Drive component three; 12. Drive component four; 121. Drive motor; 122. Transmission wheel one; 123. Transmission wheel two; 124. Transmission belt; 13. Slide rail; 14. Mounting block; 141. Slide groove; 15. Elevating plate; 16. Positioning bolt one; 17. Positioning bolt two; 18. Positioning bolt three; 19. Tightening bolt. Detailed Implementation

[0033] The following is in conjunction with the appendix Figures 1-8 This application will be described in further detail.

[0034] Example 1: This application discloses a three-axis linkage spindle mechanism. (Refer to...) Figures 1-6 The three-axis linkage spindle mechanism includes a mounting plate 1, a movable plate 1 2, a movable plate 2 3, and a spindle 4. The mounting plate 1 is the fixed base of this mechanism and is used to fix it on the machine tool frame. Several lifting rings 5 ​​are fixed on the upper end surface of the mounting plate 1.

[0035] Reference Figures 1-6 Movable plate 2 is located on one side of mounting plate 1 and slidably connected to mounting plate 1. When mounting plate 1 is placed vertically, movable plate 2 slides horizontally on mounting plate 1. Movable plate 2 includes plate body 21 and extension block 22. Plate body 21 is slidably connected to mounting plate 1, and extension block 22 is located below plate body 21 and fixed to one end of plate body 21. Mounting plate 1 is provided with drive assembly 6 for driving movable plate 2 to move. Drive assembly 6 includes lead screw 61 and drive component 62. Lead screw 61 is rotatably connected to... The drive unit 62 is located on the mounting plate 1, with lead screw 61 and extension block 22 threadedly connected. The drive unit 62 is located on one side of the extension block 22 along the sliding direction of the plate 21 and on the side of the extension block 22 close to the center of the plate 21. The drive unit 62 is fixed on the mounting plate 1. The output shaft of the drive unit 62 and lead screw 61 are coaxially fixed. The drive unit 62 drives lead screw 61 to rotate. The lead screw 61 drives the movable plate 2 to move through the threaded engagement with the movable plate 2. In this embodiment, the drive unit 62 is a motor.

[0036] Reference Figures 1-6 Movable plate 2 3 is located on the side of movable plate 2 away from mounting plate 1 and is slidably connected to movable plate 2. The sliding direction of movable plate 2 3 is perpendicular to the sliding direction of movable plate 2. When mounting plate 1 is placed vertically, movable plate 2 slides up and down on mounting plate 1. Movable plate 2 is provided with a drive assembly 2 7 for driving movable plate 2 3 to move. Drive assembly 2 7 includes lead screw 2 71 and drive component 2 72. Lead screw 2 71 is located on the side of movable plate 2 3 away from movable plate 1 and is rotatably connected to movable plate 2 3. The rotation axis of lead screw 2 71 is perpendicular to the sliding direction of movable plate 1 2. Lead screw 2 71 and movable plate 1 2 are threadedly connected. Drive component 2 72 is fixed to movable plate 2 3. The output shaft of drive component 2 72 and lead screw 2 71 are coaxially fixed. Drive component 2 72 drives lead screw 2 71 to rotate. Lead screw 2 71 drives movable plate 2 3 to move through the threaded engagement with movable plate 1 2. In this embodiment, drive component 2 72 is a motor.

[0037] Reference Figures 1-6 Both the mounting plate 1 and the movable plate 2 have clearance holes 8. The movable plate 3 has a sleeve 9, which includes a cylinder 91, several positioning blocks 92, and a positioning plate 93. The cylinder 91 is integrally fixed to the movable plate 3 and passes through the clearance holes 8 of the mounting plate 1 and the movable plate 2. The outer wall of the cylinder 91 has a through hole 911. A sliding sleeve 10 is slidably connected to the cylinder 91 and is slidably connected to the through hole 911. The sliding direction of the sliding sleeve 10 is perpendicular to the sliding direction of the movable plate 2 and the movable plate 3. The movable plate 3 has a drive assembly 3 for driving the sliding sleeve 10 to move. 11. The drive assembly 3 11 includes a lead screw 3 111 and a drive component 3 112. The lead screw 3 111 is rotatably connected to the sliding sleeve 10, and the rotation axis of the lead screw 3 111 is perpendicular to the sliding direction of the movable plate 1 2 and the movable plate 2 3. The lead screw 3 111 and the movable plate 2 3 are threadedly connected. The drive component 3 112 is fixed to the sliding sleeve 10. The output shaft of the drive component 3 112 is coaxially fixed with the lead screw 3 111. The drive component 3 112 drives the lead screw 3 111 to rotate. The lead screw 3 111 drives the sliding sleeve 10 to move through the threaded engagement with the movable plate 2 3. In this embodiment, the drive component 3 112 is a motor.

[0038] Reference Figures 1-6 The main shaft 4 is rotatably connected to the sliding sleeve 10, and the rotation axis of the main shaft 4 is parallel to the sliding direction of the sliding sleeve 10. A driving component 4 12 is fixed on the sliding sleeve 10. The output shaft of the driving component 4 12 is coaxially fixed with the main shaft 4. The driving component 4 12 drives the main shaft 4 to rotate. In this embodiment, the driving component 4 12 is a motor.

[0039] Reference Figures 1-6Two slide rails 13 are fixed on the outer wall of the sliding sleeve 10. The two slide rails 13 are located on opposite sides of the sliding sleeve 10. An installation groove 912 is provided on the outer peripheral wall of the cylinder 91. In this embodiment, there are four installation grooves 912, located at opposite ends of the cylinder 91 and symmetrically distributed along the axis of the cylinder 91. The installation grooves 912 communicate with the through holes 911, and one end of the installation groove 912 away from the middle of the cylinder 91 penetrates the cylinder 91. Installation blocks 14 are installed on the cylinder 91. The number and position of the installation blocks 14 correspond to the installation grooves. The number and position of 912 correspond one-to-one. The mounting block 14 is located in the corresponding mounting groove 912 and outside the sliding sleeve 10. The mounting block 14 is provided with a sliding groove 141 on the outer wall of the sliding sleeve 10. The sliding groove 141 passes through the mounting block 14 along the sliding direction of the sliding sleeve 10. The slide rail 13 is slidably connected in the sliding groove 141. The cylinder 91 is also equipped with a shim 15. The number and position of the shim 15 correspond one-to-one with the number and position of the mounting block 14. The shim 15 is located in the corresponding mounting groove 912 and on the side of the corresponding mounting block 14 away from the slide rail 13.

[0040] Reference Figures 1-6 The cylinder 91 is threaded with several clamping bolts 19. The clamping bolts 19 are located on opposite sides of the mounting block 14 perpendicular to the axis of the slide rail 13. The clamping bolts 19 located on the same side of the mounting block 14 are spaced apart along the axis of the slide rail 13. The clamping bolts 19 clamp the mounting block 14.

[0041] Reference Figures 1-6 The number and position of the positioning blocks 92 correspond one-to-one with the number and position of the mounting slots 912. The positioning blocks 92 are located on the side of the corresponding shim 15 away from the corresponding mounting block 14 and cover the mounting slot 912. Several positioning bolts 16 and positioning bolts 17 are threaded through the positioning blocks 92. The positioning bolts 16 are threaded to the cylinder 91 to lock the positioning blocks 92 to the cylinder 91. The positioning bolts 17 are threaded through the shim 15 and threaded to the mounting block 14. Tightening the positioning bolts 17 can pull the mounting block 14 and achieve pre-tightening adjustment with the shim 15. The shim 15 abuts against the mounting block 14, so that the inner wall of the slide groove 141 fits against the slide rail 13.

[0042] Reference Figures 1-6 In this embodiment, there are two positioning plates 93, which are located at opposite ends of the cylinder 91. The positioning plates 93 cover the through opening of the mounting groove 912. Several positioning bolts 18 are threaded through the positioning plates 93 and the cylinder 91 is threaded to lock the positioning plates 93 onto the cylinder 91. The through opening of the mounting groove 912 is covered and sealed by the positioning plates 93. The positioning plates 93 form an axial limit for each component in the mounting groove 912, while preventing processing debris and dust from entering the sliding mating parts, reducing wear and jamming, and improving the long-term working reliability of the mechanism.

[0043] The implementation principle of Embodiment 1 of this application is as follows: The movable plate 1 2, movable plate 2 3 and sleeve 9 are arranged in a through-type cooperation, which abandons the traditional scattered layout of separate stacking, reduces the overall volume of the equipment, reduces the overall enclosed size of the mechanism, saves the space occupied by equipment installation and enclosed processing, has a higher space utilization rate, and a more compact overall structure. There is no need to add extra auxiliary support, extended installation base and other redundant parts. The number of parts is less and the assembly process is simpler, which reduces the manufacturing cost and assembly and debugging cost of the equipment. Meanwhile, this application sets the second movable plate 3 of the bearing sleeve 9 on the side of the first movable plate 2 away from the mounting plate 1, and the sleeve 9 penetrates the first movable plate 2 in the opposite direction to form a nested fit with the clearance hole 8 of the mounting plate 1. This positional fit structure makes the overall force point centrally symmetrical. With the sleeve 9 supporting the overall load of the sliding sleeve 10 and the spindle 4, the center of gravity of the spindle 4 can be gathered at the center of the mechanism, avoiding the problems of unilateral force, center of gravity shift, and load imbalance. The structure has excellent load-bearing stability and can be installed at any angle according to the workpiece processing requirements. Even under the tilted installation condition, it can still maintain stable operation without shaking or shifting, and will not have an adverse effect on the processing accuracy. It can adapt to various multi-angle and irregular workpiece processing scenarios and has a wider range of applications.

[0044] During hoisting, the hoisting load is directly borne by the mounting plate 1, avoiding external forces acting on movable plate 1 2 and movable plate 2 3, which could cause misalignment of the sliding pair and protect the assembly accuracy of the sliding pair. Movable plate 1 2 is assembled on the mounting plate 1, movable plate 2 3 is assembled on movable plate 1 2, and sleeve 9 is assembled on movable plate 2 3. The components are matched in sequence, and the center of gravity structure formed by movable plate 2 3 and sleeve 9 is centered. During hoisting, the force on both sides of the mechanism is more balanced, and it is not easy to wobble, overturn or shake. The hoisting posture is stable and reliable, which facilitates the transfer of the mechanism, on-site positioning and assembly, and subsequent disassembly and maintenance.

[0045] Example 2, refer to Figures 7-8 The difference between this embodiment and embodiment 1 is that the driving component 4 12 includes a drive motor 121, a first transmission wheel 122, a second transmission wheel 123, and a transmission belt 124. The first transmission wheel 122 is rotatably connected to the sliding sleeve 10, and the rotation axis of the first transmission wheel 122 is parallel to the sliding direction of the sliding sleeve 10. The second transmission wheel 123 is located below the first transmission wheel 122 and is coaxially fixed to the main shaft 4. The transmission belt 124 is tensioned on the outside of the first transmission wheel 122 and the second transmission wheel 123. The drive motor 121 is located on the side of the first transmission wheel 122 away from the mounting plate 1 and is fixed to the sliding sleeve 10. The output shaft of the drive motor 121 is coaxially fixed to the first transmission wheel 122. The drive motor 121 drives the first transmission wheel 122 to rotate, and the first transmission wheel 122 drives the main shaft 4 to rotate through the cooperation of the transmission belt 124 and the second transmission wheel 123.

[0046] The implementation principle of Example 2 is as follows: Using belt drive for power transmission can buffer and absorb some of the vibration generated during the machining process of spindle 4, reduce the transmission of vibration to drive motor 121, and protect drive motor 121.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A three-axis linkage spindle mechanism, comprising a mounting plate (1), characterized in that: It also includes a first movable plate (2), a second movable plate (3), and a main shaft (4). The first movable plate (2) is slidably connected to the mounting plate (1). The second movable plate (3) is located on the side of the first movable plate (2) away from the mounting plate (1) and is slidably connected to the first movable plate (2). The sliding direction of the second movable plate (3) is perpendicular to the sliding direction of the first movable plate (2). The mounting plate (1) is provided with a first driving assembly (6) for driving the first movable plate (2) to move. The first movable plate (2) is provided with a second driving assembly (7) for driving the second movable plate (3) to move. The second movable plate (3) is provided with a sleeve (9). The mounting plate (1) and the first movable plate (2) are provided with clearance holes (8). The sleeve (9) passes through the clearance holes (8) of the mounting plate (1) and the first movable plate (2). A sliding sleeve (10) is slidably connected to the sleeve (9). The sliding direction of the sliding sleeve (10) is perpendicular to the sliding direction of the first movable plate (2) and the second movable plate (3). The second movable plate (3) is provided with a third driving component (11) for driving the sliding sleeve (10) to move. The main shaft (4) is rotatably connected to the sliding sleeve (10). The sliding sleeve (10) is provided with a fourth driving component (12) for driving the main shaft (4) to rotate.

2. The three-axis linkage spindle mechanism according to claim 1, characterized in that: The movable plate 2 (3) and the sleeve (9) are fixed together.

3. The three-axis linkage spindle mechanism according to claim 1, characterized in that: The sleeve (9) is provided with a mounting block (14), the mounting block (14) is provided with a sliding groove (141), the sliding sleeve (10) is provided with a sliding rail (13), the sliding rail (13) is slidably connected in the sliding groove (141), the sleeve (9) is also provided with a shim (15), the shim (15) is located on the side of the mounting block (14) away from the sliding rail (13), the shim (15) abuts against the mounting block (14), so that the inner wall of the sliding groove (141) fits against the sliding rail (13).

4. The three-axis linkage spindle mechanism according to claim 3, characterized in that: The sleeve (9) includes a cylinder (91), a positioning block (92), and a positioning plate (93). The cylinder (91) is mounted on the movable plate (3). A through hole (911) is provided on the cylinder (91). The sliding sleeve (10) is slidably connected in the through hole (911). An installation groove (912) is provided on the outer peripheral wall of the cylinder (91). The installation groove (912) is connected to the through hole (911), and one end of the installation groove (912) penetrates the cylinder (91). The shim (15) and the mounting block (14) are located in the installation groove (912). The positioning block (92) is located on the side of the shim (15) away from the mounting block (14). The positioning block (92) is provided with positioning bolt one (16) and positioning bolt two (17). Positioning bolt one (16) is threadedly connected to the cylinder (91). Positioning bolt two (17) passes through the shim (15) and is threadedly connected to the mounting block (14). The positioning plate (93) covers the through opening of the mounting groove (912). Positioning bolt three (18) is provided on the positioning plate (93). Positioning bolt three (18) is threadedly connected to the cylinder (91).

5. The three-axis linkage spindle mechanism according to claim 4, characterized in that: The mounting plate (1) is provided with lifting rings (5).

6. The three-axis linkage spindle mechanism according to claim 1, characterized in that: The drive assembly (6) includes a lead screw (61) rotatably connected to the mounting plate (1) and a drive member (62) provided on the mounting plate (1). The lead screw (61) and the movable plate (2) are threadedly connected. The drive member (62) drives the lead screw (61) to rotate.

7. The three-axis linkage spindle mechanism according to claim 1, characterized in that: The second drive assembly (7) includes a second lead screw (71) rotatably connected to the second movable plate (3) and a second drive component (72) provided on the second movable plate (3). The second lead screw (71) and the first movable plate (2) are threadedly connected. The second drive component (72) drives the second lead screw (71) to rotate.

8. The three-axis linkage spindle mechanism according to claim 4, characterized in that: The cylinder (91) is threaded with a clamping bolt (19), which is located on opposite sides of the mounting block (14) perpendicular to the axial direction of the slide rail (13). The clamping bolt (19) clamps the mounting block (14).

9. The three-axis linkage spindle mechanism according to claim 1, characterized in that: The driving component four (12) includes a driving motor (121) mounted on a sliding sleeve (10), a transmission wheel one (122) rotatably connected to the sliding sleeve (10), a transmission wheel two (123) coaxially mounted on the main shaft (4), and a transmission belt (124) tensioned on the outside of the transmission wheel one (122) and the transmission wheel two (123). The driving motor (121) drives the transmission wheel one (122) to rotate.

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