High-precision rotating type vertical machining center

Abstract

The invention relates to a high-precision rotating mode vertical machining center, and relates to the field of machining equipment, the high-precision rotating mode vertical machining center comprises a base, a stand column, a rotating workbench and a spindle box, the stand column is installed on the base, the rotating workbench is installed on the stand column through a Z-axis moving part, and the spindle box is installed on the rotating workbench; the spindle box is mounted on the rotary worktable through a rotary moving part, the rotary moving part comprises a driving motor and an auxiliary gear, a mounting groove is formed in the rotary worktable, the driving motor is mounted in the mounting groove, a driving gear is mounted on an output shaft of the driving motor, and the auxiliary gear is mounted in the mounting groove. A box cover is installed on the rotary workbench and can block the installation groove, a rotating shaft is arranged on the spindle box and penetrates through the box cover, the auxiliary gear is installed at the end, extending into the installation groove, of the rotating shaft, and the driving gear is in driving connection with the limiting ring. The motor on the machining center can be disassembled, assembled and overhauled conveniently.

Description

Technical Field

[0001] This application relates to the field of machining equipment, and in particular to a vertical machining center with a high-precision rotation method. Background Art

[0002] With the increasing requirements for machining accuracy in industrial production, although existing vertical machining centers meet market demands to a certain extent, there is still a certain contradiction between machining speed and accuracy. Traditional vertical machining centers mostly adopt ordinary motor drive methods, which cannot effectively combine high-precision positioning and high-speed movement, resulting in low machining efficiency, especially poor performance in precision cutting of complex curved surfaces.

[0003] Existing vertical machining centers are usually driven by mechanisms such as servo motors. However, as the usage time increases, since the bearings of the motors will gradually wear during long-term operation, the vibration and noise during motor operation increase, and even the motor may get stuck, thus requiring regular maintenance of the motor. However, since the motor is usually fixedly installed inside and the installation position may be relatively concealed, the maintenance of the motor is difficult. Summary of the Invention

[0004] To facilitate the disassembly and assembly maintenance of the motor on the machining center, this application provides a vertical machining center with a high-precision rotation method.

[0005] A vertical machining center with a high-precision rotation method provided by this application adopts the following technical solutions: A vertical machining center with a high-precision rotation method includes a base, a column, a rotary table, and a spindle box. The column is installed on the base. The rotary table is installed on the column through a Z-axis moving member. The spindle box is installed on the rotary table through a rotary moving member. The rotary moving member includes a driving motor and an auxiliary gear. An installation groove is provided on the rotary table. The driving motor is installed in the installation groove. A driving gear is installed on the output shaft of the driving motor. A box cover is installed on the rotary table. The box cover can block the installation groove. A rotating shaft is provided on the spindle box. The rotating shaft passes through the box cover. The auxiliary gear is installed at one end of the rotating shaft extending into the installation groove. The driving gear is drivingly connected to the limiting ring By adopting the above technical solutions, the design of the driving motor and the auxiliary gear enables the rotary table to respond quickly with high precision, reducing the error accumulation during the machining process. The connection method between the rotating shaft and the auxiliary gear ensures the stability of the transmission, reduces vibration and noise, and improves the machining quality. The structural design of the installation groove and the box cover not only protects the driving motor but also facilitates maintenance and repair, extending the service life of the equipment.

[0006] In a specific feasible implementation, it further includes a bushing. An internal spline is provided on the inner sidewall of the bushing, and an external keyway is formed in the circumferential part of the rotating shaft. The bushing is installed on the rotating shaft by the cooperation of the internal spline and the external keyway. The auxiliary gear can be sleeved on the bushing. A gear thread groove is formed in the inner sidewall of the auxiliary gear, and a bushing thread groove is formed in the outer sidewall of the bushing. The gear thread groove and the bushing thread groove cooperate to form a complete thread groove, and the bushing and the auxiliary gear are connected by screwing a screw into the gear thread groove and the bushing thread groove.

[0007] By adopting the above technical solution, the cooperation of the internal spline and the external keyway between the bushing and the rotating shaft ensures the stable connection between the rotating shaft and the bushing, avoids problems such as loosening or wear caused by relative rotation, and improves the reliability and service life of the transmission system. At the same time, the auxiliary gear is connected to the bushing through the cooperation of the screw and the thread groove of the bushing, which not only simplifies the assembly process, but also enhances the overall rigidity of the structure, further improving the transmission accuracy and stability.

[0008] In a specific feasible implementation, two bushing thread grooves are formed, and the two bushing thread grooves are symmetrically arranged on both sides of the circumferential part of the bushing. The number and position of the gear thread grooves correspond to those of the bushing thread grooves.

[0009] By adopting the above technical solution, the two bushing thread grooves on the bushing are symmetrically arranged on both sides of the circumferential part of the bushing, and the number and position of the gear thread grooves correspond to those of the bushing thread grooves. This design makes the connection between the bushing and the auxiliary gear more stable and reliable, improves the stability and accuracy of the entire transmission system. At the same time, the symmetrically arranged thread groove distribution can better disperse the load, reduce local stress concentration, and extend the service life of the components.

[0010] In a specific feasible implementation, it further includes a limit ring. The limit ring is rotatably connected in the installation groove, and the limit ring is coaxially installed with the auxiliary gear. Both sides of the driving gear are meshed with the auxiliary gear and the limit ring respectively.

[0011] By adopting the above technical solution, the addition of the limit ring not only improves the stability of the system, but also enhances the meshing accuracy between the driving gear and the auxiliary gear, reducing the error during the transmission process. The limit ring is rotatably connected in the installation groove and is coaxially installed with the auxiliary gear, ensuring that the main spindle box remains stable during rotation and avoiding machining errors caused by vibration or offset. At the same time, both sides of the driving gear are meshed with the auxiliary gear and the limit ring respectively, further improving the accuracy and reliability of the transmission system and ensuring high-precision cutting operations.

[0012] In a specific feasible implementation, the box cover includes two partition plates. Limiting grooves are formed in the partition plates, and the two limiting grooves can be spliced to form a circular groove. The partition plates are installed on one end face of the rotary table where the installation groove is formed. A limiting block is installed on the rotating shaft, and the limiting block is rotatably connected in the limiting groove.

[0013] By adopting the above technical solution, the box cover is composed of two partition plates. The limiting grooves on the partition plates are spliced to form a circular groove, and the limiting block on the rotating shaft is rotatably connected in the limiting groove, effectively improving the convenience of installation and disassembly of the box cover, facilitating the maintenance and repair of the drive motor. At the same time, this design can also ensure the sealing and stability of the box cover, prevent dust and impurities from entering the installation groove, and ensure the normal operation of the drive motor.

[0014] In a specific feasible implementation, slide rails are formed at both the upper and lower ends in the height direction on one end face of the rotary table where the installation groove is formed, and the partition plates are slidably connected in the slide rails.

[0015] By adopting the above technical solution, the partition plates on the rotary table can slide in the slide rails, facilitating the quick opening and closing of the box cover when it is necessary to repair or replace the drive motor and its related components, improving the maintainability and repair convenience of the equipment. At the same time, the design of the slide rails makes the partition plates more stable during the sliding process, reducing the loosening problem caused by external vibration and ensuring the long-term stable operation of the equipment.

[0016] In a specific feasible implementation, a limiting rod is further included. A slot is formed on the side wall of the slide rail at the upper end in the height direction, one end of the limiting rod can pass through the slot, a threaded groove is formed on the side wall of the slide rail at the lower end in the height direction, an external thread is provided on one end of the limiting rod passing through the slot, and one end of the limiting rod passing through the slot can be threadedly connected in the threaded groove through the external thread.

[0017] By adopting the above technical solution, the design of the limiting rod enables the box cover to be stably installed on the rotary table, preventing the box cover from loosening or falling off due to vibration during the processing, and improving the stability and safety of the equipment. One end of the limiting rod is inserted into the slide rail through the slot, and the other end is threadedly connected in the threaded groove, realizing quick installation and firm fixation, and facilitating the maintenance and replacement of the box cover.

[0018] In a specific feasible implementation, the Z-axis driving member includes a Z-axis motor and a ball screw. The Z-axis motor is installed on the column, the ball screw is fixedly connected to the Z-axis motor, the ball screw is arranged in the height direction, and the rotary table is drivingly connected to the rotary table.

[0019] In a specific feasible implementation, an L-shaped clamping block is installed on the rotary table, and a positioning block is provided on the column corresponding to the L-shaped clamping block, and the L-shaped clamping block can be slidably connected within the positioning block.

[0020] By adopting the above technical solution, the cooperation between the L-shaped clamping block and the positioning block on the column realizes the stable sliding connection of the rotary table on the column. This design not only improves the motion accuracy of the rotary table, but also enhances the overall stability of the system, effectively reducing the machining errors caused by the loosening or offset of moving parts. At the same time, this structure is simple and reliable, facilitating maintenance and adjustment, and further improving the service life and reliability of the equipment.

[0021] In a specific feasible implementation, two L-shaped clamping blocks are provided, and the two L-shaped clamping blocks are symmetrically installed on both sides of the rotary table, and two positioning blocks are provided on both sides of the column corresponding to the L-shaped clamping blocks.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. The design of the driving motor and the auxiliary gear enables the rotary table to respond quickly with high precision, reducing the error accumulation during the machining process. The connection method between the rotating shaft and the auxiliary gear ensures the stability of the transmission, reducing vibration and noise, and improving the machining quality. The structural design of the installation groove and the box cover not only protects the driving motor, but also facilitates maintenance and repair, extending the service life of the equipment; 2. The cooperation between the internal spline and the external keyway between the bushing and the rotating shaft ensures the stable connection between the rotating shaft and the bushing, avoiding problems such as loosening or wear caused by relative rotation, and improving the reliability and service life of the transmission system. At the same time, the auxiliary gear is connected to the threaded groove of the bushing through screws, which not only simplifies the assembly process, but also enhances the overall rigidity of the structure, further improving the transmission accuracy and stability; 3. The addition of the limit ring not only improves the stability of the system, but also enhances the meshing accuracy between the driving gear and the auxiliary gear, reducing the error during the transmission process. The limit ring is rotatably connected in the installation groove and coaxially installed with the auxiliary gear, ensuring the stability of the spindle box during rotation and avoiding machining errors caused by vibration or offset. At the same time, both sides of the driving gear are meshed with the auxiliary gear and the limit ring respectively, further improving the accuracy and reliability of the transmission system and ensuring high-precision cutting operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of an embodiment of the present application.

[0024] Figure 2 It is an exploded view of an embodiment of the present application.

[0025] Figure 3It is a schematic structural diagram of the connection relationship between the spindle box and the bushing.

[0026] Figure 4 It is a schematic structural diagram of the partition board.

[0027] Figure 5 It is Figure 1 an enlarged view of part A in

[0028] Figure 6 It is Figure 1 an enlarged view of part B in

[0029] Figure 7 It is a schematic structure showing the installation relationship between the Z-axis drive member and the column in the embodiment of the present application.

[0030] Explanation of reference numerals: 1, base; 2, column; 21, positioning block; 3, rotary table; 31, installation groove; 32, slide rail; 33, slot; 34, threaded groove; 4, spindle box; 41, rotating shaft; 411, external keyway; 412, limiting block; 42, auxiliary gear; 421, gear thread groove; 43, L-shaped clamping block; 5, Z-axis drive member; 51, Z-axis motor; 52, ball screw; 6, rotating and moving member; 61, drive motor; 62, drive gear; 7, box cover; 71, partition board; 711, limiting groove; 8, limiting ring; 9, bushing; 91, internal spline; 92, bushing thread groove; 10, limiting rod. Detailed implementation manners

[0031] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "set" and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0032] The embodiment of the present application discloses a vertical machining center with a high-precision rotation method.

[0033] Such as Figure 1 and Figure 2As shown in the figure, the vertical machining center with a high-precision rotation method includes a base 1, a column 2, a rotary table 3, and a spindle box 4. The column 2 is installed on the base 1, the rotary table 3 is installed on the column 2 through a Z-axis moving member, and the spindle box 4 is installed on the rotary table 3 through a rotary moving member 6. The rotary moving member 6 includes a driving motor 61 and an auxiliary gear 42. An installation groove 31 is formed on the rotary table 3. The driving motor 61 is installed in the installation groove 31. A driving gear 62 is installed on the output shaft of the driving motor 61. A box cover 7 is installed on the rotary table 3. The box cover 7 can block the installation groove 31. A rotating shaft 41 is provided on the spindle box 4. The rotating shaft 41 passes through the box cover 7. The auxiliary gear 42 is installed at one end of the rotating shaft 41 extending into the installation groove 31. The driving gear 62 is drivingly connected to the auxiliary gear 42.

[0034] The driving motor 61 can be a servo motor or a stepper motor, and both of these motors can provide high-precision driving effects. A driving gear 62 is installed on the output shaft of the driving motor 61. The driving gear 62 meshes with a limit ring 8 and the auxiliary gear 42, so as to achieve precise driving of the spindle box 4. The housing of the driving motor 61 can be fixed in the installation groove 31 of the rotary table 3 through bolts to ensure the stable installation of the motor.

[0035] The shape of the installation groove 31 can be designed according to the shape of the motor. Commonly used shapes include rectangular, circular, etc. The depth and width of the installation groove 31 should be slightly larger than the actual size of the motor to facilitate the installation and disassembly of the motor. The shape of the box cover 7 should also match the installation groove 31. A sealing strip can be provided on the edge of the box cover 7 to prevent dust and chips from entering the installation groove 31 and affecting the normal operation of the motor.

[0036] As Figure 3 shown in the figure, the rotating shaft 41 on the spindle box 4 is supported by bearings, and the other end of the rotating shaft 41 is installed with an auxiliary gear 42. The number of teeth and module of the auxiliary gear 42 can be selected according to actual needs to ensure the accuracy of the transmission ratio. The material of the auxiliary gear 42 can be selected as high-strength alloy steel to improve its wear resistance and fatigue resistance. In the embodiment of the present application, a bushing 9 is further included. A gear thread groove 421 is formed on the inner side wall of the auxiliary gear 42, and a bushing thread groove 92 is formed on the outer side wall of the bushing 9. The gear thread groove 421 and the bushing thread groove 92 cooperate to form a complete thread groove 34. A screw is threadedly connected in the gear thread groove 421 and the bushing thread groove 92 to connect the bushing 9 and the auxiliary gear 42.

[0037] The inner side wall of the bushing 9 is provided with an internal spline 91, and an external keyway 411 is provided in the circumferential part of the rotating shaft 41. The bushing 9 is installed on the rotating shaft 41 through the cooperation of the internal spline 91 and the external keyway 411. This keyway matching method can ensure the synchronous rotation of the rotating shaft 41 and the auxiliary gear 42, and reduce the transmission error. The material of the bushing 9 can be selected as copper alloy to reduce the friction coefficient and extend the service life. Two bushing screw grooves 92 are provided, and the two bushing screw grooves 92 are symmetrically arranged on both sides of the circumferential part of the bushing 9. The number and position of the gear screw grooves 421 correspond to the bushing screw grooves 92.

[0038] It further includes a limit ring 8. The limit ring 8 is rotatably connected in the installation groove 31. The limit ring 8 is coaxially installed with the auxiliary gear 42. Both sides of the driving gear 62 are meshed with the auxiliary gear 42 and the limit ring 8 respectively. The limit ring 8 is used to limit the axial movement of the auxiliary gear 42 to ensure the stability of the transmission. The material of the limit ring 8 can be selected as stainless steel to improve its corrosion resistance and strength. The outer diameter of the limit ring 8 is slightly smaller than the diameter of the installation groove 31 for easy installation and disassembly.

[0039] As Figure 4 shown, the box cover 7 includes two partition plates 71. The partition plates 71 are provided with limit grooves 711. The two limit grooves 711 can be spliced to form a circular groove. The partition plates 71 are installed on one end face of the installation groove 31 opened on the rotary table 3. A limit block 412 is installed on the rotating shaft 41. The limit block 412 is rotatably connected in the limit groove 711, which can effectively prevent the rotating shaft 41 from shifting during rotation and improve the transmission accuracy. The material of the limit block 412 can be selected as cemented carbide to improve its wear resistance. The thickness of the partition plate 71 is set moderately.

[0040] On both the upper and lower ends of one end face of the installation groove 31 opened on the rotary table 3 along the height direction, slide rails 32 are provided. The partition plates 71 are slidably connected to the slide rails 32. This slide rail 32 design enables the partition plates 71 to be conveniently installed and disassembled, facilitating maintenance and replacement. The cross-sectional shape of the slide rail 32 can be T-shaped, dovetail-shaped, etc. to prevent the partition plates 71 from falling off during sliding. The length of the slide rail 32 should be slightly longer than the height of the partition plates 71 to ensure the stable sliding of the partition plates 71.

[0041] As Figure 5 and Figure 6As shown, in the embodiment of the present application, it further includes a limiting rod 10. A slot 33 is formed on the side wall of the slide rail 32 at the upper end in the height direction. One end of the limiting rod 10 can pass through the slot 33. A threaded groove 34 is formed on the side wall of the slide rail 32 at the lower end in the height direction. An external thread is provided on one end of the limiting rod 10 passing through the slot 33, and one end of the limiting rod 10 passing through the slot 33 can be threadedly connected to the threaded groove 34 through the external thread. The function of the limiting rod 10 is to lock the position of the partition plate 71 to prevent it from sliding randomly within the slide rail 32. The material of the limiting rod 10 can be selected as carbon steel and surface nickel-plated to improve its corrosion resistance and smoothness.

[0042] As Figure 7 shown, the Z-axis driving member 5 includes a Z-axis motor 51 and a ball screw 52. The Z-axis motor 51 is installed on the column 2, and the ball screw 52 is fixedly connected to the Z-axis motor 51. The ball screw 52 is arranged along the height direction, and the rotary table 3 is drivingly connected to the rotary table 3. The Z-axis motor 51 can adopt a servo motor. The pitch and diameter of the ball screw 52 should be selected according to actual needs to ensure the accuracy and speed of the Z-axis movement. The material of the ball screw 52 can be selected as high-strength alloy steel and surface quenched to improve its hardness and wear resistance. Both ends of the ball screw 52 are supported by bearings to ensure its smooth linear movement.

[0043] An L-shaped clamping block 43 is installed on the rotary table 3, and a positioning block 21 corresponding to the L-shaped clamping block 43 is formed on the column 2. The L-shaped clamping block 43 can be slidably connected within the positioning block 21. The function of the L-shaped clamping block 43 is to limit the horizontal movement of the rotary table 3 on the column 2 to ensure the stability of its vertical movement. The material of the L-shaped clamping block 43 can be selected as cast iron and surface sandblasted to improve its surface roughness and rust prevention ability. The cross-sectional shape of the positioning block 21 can be rectangular, trapezoidal, etc. to adapt to the shape of the L-shaped clamping block 43. The depth and width of the positioning block 21 should be slightly larger than the actual size of the L-shaped clamping block 43 to ensure its smooth sliding.

[0044] In other embodiments, a lubrication system can be added to the installation groove 31 of the rotary table 3 to reduce the friction between the driving motor 61 and various components and improve the smoothness and service life of its operation. The lubrication system includes a lubricating oil pump, oil pipes, and oil nozzles. The lubricating oil pump is installed on one side of the installation groove 31 and is connected to each component that needs lubrication through oil pipes, such as the bearings of the driving motor 61 and the bearings of the rotating shaft 41. The oil nozzles are installed on the corresponding components, and the components are kept in a lubricated state by periodically spraying lubricating oil. The flow rate and pressure of the lubricating oil pump should be adjusted according to actual needs to ensure the lubrication effect. The material of the oil pipes can be selected as rubber or PVC, which has good flexibility and corrosion resistance. The design of the oil nozzles should be simple and easy to use for easy maintenance and replacement.

[0045] The housing of the lubricating oil pump is made of aluminum alloy, which has good heat dissipation performance and is lightweight. The operating voltage of the lubricating oil pump should match the external power supply to ensure its stable operation. The selection of lubricating oil should consider its viscosity and antioxidant properties, and commonly used ones include mineral oil, synthetic oil, etc. The storage container of the lubricating oil should be well sealed to prevent contamination and volatilization. The injection angle and distance of the oil nozzle should be adjusted according to actual needs to ensure that the lubricating oil can evenly cover all components.

[0046] A recovery groove can also be provided at the bottom of the installation groove 31 to collect excess lubricating oil and prevent it from dripping onto other components. The material of the recovery groove can be selected as stainless steel, which has good corrosion resistance and strength. The shape of the recovery groove can be U-shaped, V-shaped, etc. to adapt to different recovery requirements. The capacity of the recovery groove should be appropriate, which can accommodate enough lubricating oil while avoiding occupying too much space.

[0047] The implementation principle of a vertical machining center with a high-precision rotation mode in an embodiment of the present application is as follows: By using a servo motor as the driving motor 61, high-precision driving of the rotary table 3 and the spindle box 4 is achieved. A driving gear 62 is installed on the output shaft of the driving motor 61, and the driving gear 62 meshes with the auxiliary gear 42 and the limit ring 8 to ensure the stability and accuracy of the transmission. The rotating shaft 41 on the spindle box 4 is supported by bearings, and an auxiliary gear 42 is installed at the other end of the rotating shaft 41. The auxiliary gear 42 meshes with the driving gear 62 to achieve precise driving of the spindle box 4. Through the design of the box cover 7, dust and chips are effectively prevented from entering the installation groove 31, extending the service life of the motor. The design of the L-shaped block 43 and the positioning block 21 limits the horizontal movement of the rotary table 3 on the column 2 and ensures the stability of its vertical movement. Generally speaking, through the optimization of the transmission structure and the protection design, the convenience of disassembling, assembling and overhauling the device is significantly improved, and at the same time, the machining accuracy and reliability of the vertical machining center are improved.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A high-precision rotary vertical machining center, comprising a base (1), a column (2), a rotary table (3) and a spindle box (4), wherein the column (2) is mounted on the base (1), the rotary table (3) is mounted on the column (2) via a Z-axis moving member, and the spindle box (4) is mounted on the rotary table (3) via a rotary moving member (6), characterized in that: The rotating moving part (6) comprises a driving motor (61) and an auxiliary gear (42); a mounting groove (31) is provided on the rotating worktable (3); the driving motor (61) is mounted in the mounting groove (31); a driving gear (62) is mounted on the output shaft of the driving motor (61); a box cover (7) is installed on the rotating worktable (3); the box cover (7) can block the mounting groove (31); a rotating shaft (41) is provided on the spindle box (4); the rotating shaft (41) passes through the box cover (7); the auxiliary gear (42) is mounted on the rotating shaft (41) and extends to one end of the mounting groove (31); and the driving gear (62) is drivingly connected to the limiting ring (8).

2. The high-precision rotary vertical machining center according to claim 1, characterized in that: It also includes a bushing (9), the inner wall of which is provided with an internal spline (91), the circumferential portion of the rotating shaft (41) is provided with an external keyway (411), the bushing (9) is mounted on the rotating shaft (41) by means of the internal spline (91) cooperating with the external keyway (411), the auxiliary gear (42) can be sleeved on the bushing (9), the inner wall of the auxiliary gear (42) is provided with a gear screw groove (421), the outer wall of the bushing (9) is provided with a bushing screw groove (92), the gear screw groove (421) and the bushing screw groove (92) cooperate to form a complete screw groove (34), and the bushing (9) is connected to the auxiliary gear (42) by means of a screw thread connected in the gear screw groove (421) and the bushing screw groove (92).

3. The high-precision rotary vertical machining center according to claim 2, characterized in that: The bushing screw grooves (92) are provided with two, and the two bushing screw grooves (92) are symmetrically arranged on both sides of the circumferential part of the bushing (9), and the number and position of the gear screw grooves (421) correspond to the bushing screw grooves (92).

4. The high-precision rotary vertical machining center according to claim 1, characterized in that: It also includes a limiting ring (8), which is rotatably connected in the installation groove (31), the limiting ring (8) is coaxially installed with the auxiliary gear (42), and the two sides of the driving gear (62) are respectively meshed with the auxiliary gear (42) and the limiting ring (8).

5. The high-precision rotary vertical machining center according to claim 1, characterized in that: The box cover (7) comprises two partitions (71), each of which is provided with a limiting groove (711), and the two limiting grooves (711) can be spliced ​​to form a circular groove, the partition (71) is mounted on an end surface of one side of the rotating worktable (3) where the mounting groove (31) is provided, and a limiting block (412) is mounted on the rotating shaft (41), and the limiting block (412) is rotatably connected in the limiting groove (711).

6. The high-precision rotary vertical machining center according to claim 5, characterized in that: The rotating worktable (3) has a mounting groove (31) on one side of which a slide rail (32) is provided at both upper and lower ends in the height direction, and the partition plate (71) is slidably connected to the slide rail (32).

7. The high-precision rotary vertical machining center according to claim 6, characterized in that: It also includes a limiting rod (10), a slot (33) is provided on the side wall of the slide rail (32) at the upper end in the height direction, one end of the limiting rod (10) can pass through the slot (33), a thread groove (34) is provided on the side wall of the slide rail (32) at the lower end in the height direction, an external thread is provided on one end of the limiting rod (10) passing through the slot (33), and one end of the limiting rod (10) passing through the slot (33) can be threadedly connected in the thread groove (34) through the external thread.

8. The high-precision rotary vertical machining center according to claim 1, characterized in that: The Z-axis driving member (5) comprises a Z-axis motor (51) and a ball screw (52); the Z-axis motor (51) is mounted on the column (2); the ball screw (52) is fixedly connected to the Z-axis motor (51); the ball screw (52) is arranged along the height direction; and the rotary table (3) is drivingly connected to the rotary table (3).

9. The high-precision rotary vertical machining center according to claim 8, characterized in that: An L-shaped clamping block (43) is installed on the rotating workbench (3), and a positioning block (21) is provided on the column (2) corresponding to the L-shaped clamping block (43), and the L-shaped clamping block (43) can be slidably connected in the positioning block (21).

10. The high-precision rotary vertical machining center according to claim 1, characterized in that: Two L-shaped blocks (43) are provided, and the two L-shaped blocks (43) are symmetrically mounted on both sides of the rotating workbench (3), and two positioning blocks (21) are provided on both sides of the column (2) corresponding to the L-shaped blocks (43).

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