Rotary table of vertical turning and milling composite machine tool

Abstract

The utility model discloses a vertical turning and milling composite machine tool rotary table, which relates to the technical field of rotary table equipment, and comprises a driving device, a rotary table base, a rotary table body and a rotary body, the rotary body is rotatably arranged on the rotary table base, the rotary body and the rotary table body are coaxially arranged and fixedly connected, and the rotary table base is fixedly connected with the rotary table body. The rotary body is fixedly provided with a driving gear ring, and the driving device is in transmission connection with the driving gear ring; a fixed support is installed at the bottom of the rotary table base, one side of the rotary table base is hinged to the fixed support through a rotating shaft, the rotary table base is hollow, the driving device is arranged on the inner side of the rotary table base, and a turnover device is arranged between the rotary table base and the fixed support. Therefore, through the arrangement of the power conversion box, power switching is achieved, the equipment size is reduced, angle adjustment is conveniently achieved, and the use range of the machine tool rotary table is expanded.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rotary table equipment technical field, concretely relates to a vertical turning and milling combined machine tool rotary table. BACKGROUND

[0002] The turning and milling combined machine tool is the development trend of the existing numerical control machine tool and is one of the most popular machining processes in the current mechanical processing field. The turning and milling combined machine tool is a machine tool that integrates turning, milling, boring and other processes, can satisfy one-time clamping, complete the machining of a part as much as possible, ensure machining precision, and the rotary table is a very important component in the turning and milling combined machine tool.

[0003] In order to facilitate the realization of multi-angle machining, part of the rotary table is provided with a rotating shaft and adopts a mode mainly driven by a torque motor, such as a cradle rotary table. The angle of the rotary table can be adjusted at any time during mechanical machining, thereby changing the included angle between the workpiece and the machining tool. Due to the huge inertia generated when the large workpiece rotates, the maximum bearing capacity of the cradle rotary table is about 1 ton, so it is only suitable for machining small workpieces. If a large rotary table is used, the support demand of the large workpiece can be met. During turning, a high-power main drive motor must be used to drive, so as to meet the speed requirement of the rotary table. The accuracy requirement of the indexing rotation is very high (such as zero point several rotations), and a small power indexing rotation motor (i.e. a permanent magnet servo motor) needs to be used. The power and rotation accuracy of the two types of motors are very different, and they cannot drive the rotary table to rotate at the same time. When the turning function needs to be converted, it must be ensured that the driving pinion of the C-axis transmission device and the large gear ring of the workbench are in a disengaged state, and then the vertical turning rotary table driving structure can work. Otherwise, the C-axis driving device will be damaged, causing machine tool accidents. In order to ensure the cooperative work of the two motors, the existing machine tool sets a C-axis transmission device to realize the switching between the two powers. The C-axis transmission device is prior art, and the patent document with the patent name of "numerical control vertical turning and milling combined machining center workbench" and the patent application publication number of CN109571051A has a more detailed description.

[0004] Due to the addition of the C-axis transmission device, the volume of the entire rotary table is further increased, and the angle of the rotary table cannot be adjusted. For part of the medium and large workpieces, such as large propellers, even if a dynamic column vertical turning combined machine tool or a gantry type numerical control machine tool is used, the workpiece still needs to be adjusted at a certain angle when machining the curved surface on the side of the workpiece, so as to complete the machining. The existing equipment needs to be clamped multiple times, and the installation error caused by multiple clamping is difficult to eliminate, so part of the workpieces cannot meet the design requirements after machining. UTILITY MODEL CONTENTS

[0005] In order to overcome the above-mentioned defects, the utility model discloses a vertical turning and milling combined machine tool rotary table which realizes power switching and reduces the equipment size through the setting power conversion box, and the angle adjustment is facilitated.

[0006] In order to realize the above-mentioned purpose, the utility model provides a vertical turning and milling combined machine tool rotary table, which comprises: the machine tool rotary table comprises a driving device, a rotary table base, a rotary table body and a rotary body, the rotary body is rotatably installed on the rotary table base, the rotary body is coaxially arranged with the rotary table body and is fixedly connected, the rotary body is provided with a driving gear ring, and the driving device is in transmission connection with the driving gear ring.

[0007] Preferably, the turnover device comprises a turnover oil cylinder, a cylinder body of the turnover oil cylinder is hinged to the fixed support, and a piston rod of the turnover oil cylinder is hinged to the rotary table base.

[0008] Preferably, the turnover device comprises a locking mechanism, the locking mechanism comprises a locking groove, a locking block and a locking oil cylinder, the locking groove is formed in the fixed support, the locking oil cylinder is arranged between the locking block and the fixed support, the locking oil cylinder drives the locking block to slide in the locking groove, and the rotary table base and the fixed support are locked.

[0009] Preferably, the outer end surface of the locking block and the inner end surface of the locking groove are wedge-shaped and matched.

[0010] Preferably, the power conversion box is arranged on the outside of the rotary table base, a main power input shaft, an intermediate first shaft, a division adjustment power input shaft, an intermediate second shaft and a power output shaft are rotatably installed in the box body; the main power input shaft and the intermediate second shaft are rotatably installed and coaxially arranged; the intermediate first shaft is provided with a power conversion mechanism; the power conversion mechanism is selectively in transmission connection with the main power input shaft or the division adjustment power input shaft; the intermediate second shaft is provided with a two-shaft transmission mechanism, when the main power input shaft is in transmission connection with the power conversion mechanism, the intermediate second shaft is selectively in transmission connection with the main power input shaft or the intermediate first shaft through the two-shaft transmission mechanism; when the division adjustment power input shaft is in transmission connection with the power conversion mechanism, the intermediate first shaft and the intermediate second shaft are in transmission connection through the two-shaft transmission mechanism, and the intermediate second shaft and the power output shaft are in transmission connection through a second gear set.

[0011] Preferably, the power conversion mechanism comprises a first power conversion gear, the first power conversion gear is slidingly connected to the intermediate shaft, the main power input shaft is provided with a main power input gear, the indexing adjustment power input shaft is provided with an indexing adjustment power input gear, and the power conversion gear is selectively engaged with the main power input gear or the indexing adjustment power input gear.

[0012] Preferably, the power conversion mechanism comprises a second power conversion gear and a worm and gear mechanism, the worm wheel of the worm and gear mechanism is arranged on the intermediate shaft, the worm of the worm and gear mechanism is arranged on the indexing adjustment power input shaft, and the second power conversion gear is selectively combined with or separated from the end face of the worm wheel.

[0013] Preferably, the two-shaft transmission mechanism comprises a two-shaft transmission gear, the two-shaft transmission gear is slidingly and key-connected to the intermediate second shaft, the intermediate first shaft is provided with an intermediate first shaft pinion, when the main power input shaft is drivingly connected to the power conversion mechanism, the intermediate second shaft is drivingly connected to the main power input shaft through the two-shaft transmission gear or drivingly connected to the main power input shaft through the two-shaft transmission gear and the intermediate first shaft pinion, when the indexing adjustment power input shaft is drivingly connected to the power conversion mechanism, the intermediate first shaft and the intermediate second shaft are drivingly connected through the two-shaft transmission gear and the intermediate first shaft pinion, and the second gear set comprises a double sliding gear arranged on the intermediate second shaft and a first power output gear and a second power output gear arranged on the power output shaft, the double sliding gear is selectively engaged with the first power output gear or the second power output gear.

[0014] Preferably, the main power input shaft is drivingly connected to the motor shaft of a main motor, the indexing adjustment power input shaft is drivingly connected to the motor shaft of an indexing motor, and the power output shaft and the drive gear ring are drivingly connected through a plurality of gear pairs.

[0015] Preferably, the driving device is two sets, and the power output shafts of the two sets of driving devices are respectively drivingly connected to the drive gear ring.

[0016] After the above technical scheme is adopted, the present application has the following beneficial technical effects:

[0017] 1. Due to the hollow of the rotary table base, the power conversion box and the driving part can be arranged in the interior of the machine tool rotary table according to the requirement, which can reduce the occupied volume of the whole set of equipment, and the overturning device can be added to realize the overturning of the machine tool rotary table, thus expanding the use range of the original rotary table, especially the vertical rotary table can be quickly converted into a horizontal rotary table, which is suitable for machining of long and complex curved surface parts, can reduce the clamping times of the workpiece, avoid the original error caused by clamping and positioning, and improve the yield of the workpiece.

[0018] 2. Due to the addition of the power conversion box, the switching of the main power and the sub-rotating power is met, in the above process, the main motor and the indexing motor share a set of speed ratio conversion device, without the need to add an additional C-axis transmission device, which can reduce the manufacturing and installation cost, and in the use process, the driving gear disc of the rotary table does not need to be separated to realize the switching of the power, so the response speed is faster, the efficiency is higher, and the maintenance cost of the whole power conversion box is also reduced.

[0019] 3. The power conversion box is directly replaceable, and the main motor and the indexing motor are mature prior art, so when the motor or the power conversion box fails or the machining precision is obviously reduced, only the motor and the power conversion box need to be repaired or replaced, without the need to replace the whole rotary table, so that the service life of the machine tool can be prolonged, and the maintenance mode is simplified, so that the machine tool can maintain good machining precision. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a reference schematic view of the power conversion box in the utility model in a top view state;

[0021] Figure 2 is a reference schematic view of the power conversion box in the utility model in a front view state;

[0022] Figure 3 is Figure 2 is a reference schematic view of the use state of the machine tool rotary table in the utility model when the machine tool rotary table is overturned by 90 degrees;

[0023] Figure 4 is a reference schematic view of the power conversion box in the utility model in a top view state;

[0024] Figure 5 is a reference schematic view of the power conversion box in the utility model in a front view state;

[0025] Figure 6 is a reference schematic view of the main motor in the power conversion box in a working state;

[0026] Figure 7 is a reference schematic view of the indexing motor in the power conversion box in a working state;

[0027] Figure 8 is a reference schematic diagram of the intermediate shaft adopting a worm and gear as a power source in the power conversion box;

[0028] Figure 9 is a reference schematic diagram of the power output shaft adopting a simple gearbox of the utility model;

[0029] In the figure,

[0030] 1, power conversion box; 11, box body; 12, main power input shaft; 121, main power input gear;

[0031] 13, intermediate shaft; 131, first power conversion gear; 132, intermediate shaft pinion; 133, second power conversion gear; 134, worm; 135, worm gear; 14, indexing adjustment power input shaft; 141, indexing adjustment power input gear; 15, intermediate two shaft; 151, two-shaft transmission gear; 152, double sliding gear; 16, power output shaft; 161, first power output gear; 162, second power output gear;

[0032] 2, main motor;

[0033] 3, indexing motor;

[0034] 4, machine tool rotary table; 41, rotary table base; 42, rotary body; 421, driving gear ring; 43, rotary table body; 431, rotary table encoder;

[0035] 5, turnover device; 51, rotating shaft; 52, fixed support; 53, turnover cylinder; 54, locking cylinder; 55, locking groove; 56, locking block. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below by combining with the drawings and examples, and it should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0037] A vertical turning and milling combined machine tool rotary table, comprising a driving device, a rotary table base 41, a rotary table body 43 and a rotary body 42, the rotary body 42 is rotatably installed on the rotary table base 41, the rotary body 42 is coaxial with the rotary table body 43 and is fixedly arranged, the rotary body 42 is fixedly provided with a driving gear ring 421; the machine tool rotary table 4 is a mature prior art, the rotary table base 41 is rigid and is used for supporting, the machine tool rotary table 4 with high precision rotation is generally driven by the driving gear ring 421 to rotate the rotary body 42, the rotary table body 43 is fixedly connected with the rotary body 42, since the rotary table body 43 is subjected to axial force and radial force, generally, a cross roller bearing integrated structure and various common auxiliary parts in mechanical connection such as oil-proof baffle ring are also installed between the rotary body 42 and the rotary table base 41.

[0038] The driving device comprises a driving member and a power conversion box 1; a power input shaft and a power output shaft are rotatably installed in a box body 11 of the power conversion box 1, the driving member is in transmission connection with the power input shaft, and the power output shaft is in transmission connection with the driving gear ring 421. The most commonly used driving member is still a servo motor, after two models of servo motors are installed with the power conversion box 1, the servo motors can be integrally installed inside the rotary table base 41 (see Figure 1 、 Figure 2 ), or can be installed outside the rotary table base 41 (see Figure 4 、 Figure 5 ). The power conversion box 1 is used for realizing power output with different speeds, according to the type of machining, generally, it can be roughly divided into two states, turning and milling, that is, high speed and low speed. The main motor 2 with large power is used for high speed, and the indexing motor 3 with small power is used for milling. Through the power conversion box 1, different power conversions are realized, and the different speed requirements of the rotary table body 43 in the turning and milling processes are met.

[0039] The utility model discloses a rotary table base 41 is hollow, and the driving device is arranged at the inside of rotary table base 41, and the bottom of rotary table base 41 is installed with fixed support 52, and the one side of rotary table base 41 is hinged to fixed support 52 through rotating shaft 51, and the bottom of rotary table base 41 is also equipped with turnover device 5. It is more convenient to maintain, and the inside of installation is to reduce the occupied volume, and mainly is to increase the use range, especially convenient to realize turnover. When actually using, it is more convenient to install driving device and power conversion box 1 at the outside of machine tool rotary table 4, but after installing, it will cause the volume of whole equipment to be too big, and it is inconvenient to realize the turnover of whole, therefore, in order to guarantee that still can keep good machining accuracy after turning over, in order to better realize the turnover, power conversion box 1 and driving motor can be arranged at the inside of machine tool rotary table 4. In order to be convenient for timely and accurate monitoring of rotation angle, it is convenient to realize accurate control between control system and turnover cylinder 53, and the one end of rotating shaft 51 will also be installed with the turnover servo motor (not shown in the drawing) of encoder, and after reaching the set requirement of rotation angle, realizes fixed, and the position will be more accurate. The technology of accurate feedback of control signal of the turnover servo motor with encoder is mature prior art, and the control principle of cradle type rotary table in numerical control machine tool can be referred to, and will not be repeated here.

[0040] The utility model discloses a turnover device 5, including turnover cylinder 53, the cylinder of turnover cylinder 53 is hinged to fixed support 52, and the piston rod of turnover cylinder 53 is hinged to rotary table base 41, and rotary table body 43 middle part is installed with rotary table encoder 431, and the rotary body 42 is installed with cross roller bearing between rotary table base 41, and power output shaft and driving gear ring 421 are connected through several gear pair transmission. Because the volume of whole machine tool rotary table 4 is big, in order to guarantee its stability when working, generally more use turnover cylinder 53 in turnover device 5, and machine tool rotary table 4 is turned over a certain angle, and in actual use, the commonly used angle is 45 degrees and 90 degrees. Especially 90 degrees is used most frequently, when machine tool rotary table 4 is perpendicular to the horizontal plane, and is matched with the universal power head of vertical turning and milling compound machine tool, can use this utility model as horizontal lathe.

[0041] The utility model discloses a fixed support 52 still is equipped with locking mechanism, and locking mechanism includes locking groove 55, locking block 56 and locking cylinder 54, and the bottom of locking block 56 is installed with locking cylinder 54, and the cylinder of locking cylinder 54 is fixedly connected fixed support 52, and the piston rod of locking cylinder 54 is connected locking block 56, and locking cylinder 54 drives locking block 56 to slide in locking groove 55. Locking cylinder 54 is arranged between locking block 56 and fixed support 52, and locking cylinder 54 drives locking block 56 to slide in locking groove 55, when machine tool rotary table 4 is rotated to 90 degrees by turnover cylinder 53, in order to guarantee its stability, the bottom of rotating shaft 51 increases locking mechanism, and the kind of locking mechanism is more, and Figure 3The utility model discloses a locking oil cylinder 54 and locking block 56. The locking oil cylinder 54 and the locking block 56 are generally used in cooperation with a zero positioning system. When the machine tool rotary table 4 rotates to a set position (for example, 90 degrees), the locking oil cylinder 54 will quickly drive the locking block 56 to extend upward. The outer end surface of the locking block 56 and the inner end surface of the locking groove 55 are both wedge-shaped and are adapted to each other. After the locking block 56 moves a certain distance, the rotary table base 41 will be temporarily clamped and tightly held. When it is necessary to return to the initial state, the control system will automatically control the locking oil cylinder 54 to retract, ensuring that the locking block 56 moves downward and opens the locking mechanism. At this time, the piston rod of the turnover oil cylinder 53 retracts, and the machine tool rotary table 4 is rotated to the initial position. This part is a mature prior art. The turnover oil cylinder 53 mainly plays a role in stable support and rotation. The process can refer to the working principle of the turnover carriage in an engineering vehicle. The turnover oil cylinder 53 is generally embedded in the fixed support 52.

[0042] Referring to Figure 4 , Figure 5 The power conversion box of the utility model is arranged on the outside of the rotary table base 41. In order to better realize the anti-backlash function and ensure the stability of power output, the power conversion box 1 can be one or two. Due to the limitation of cost and installation position, two are mostly selected. Each power conversion box 1 is provided with a main motor 2 and a dividing motor 3. The power conversion box 1 comprises a box body 11. A main power input shaft 12, an intermediate shaft 13, a dividing adjustment power input shaft 14, an intermediate two shaft 15 and a power output shaft 16 are rotatably arranged in the box body 11. The main power input shaft 12 is coaxially arranged with the intermediate two shaft 15. The intermediate shaft 13 is provided with a power conversion mechanism. The power conversion mechanism is selectively connected with the main power input shaft 12 or the dividing adjustment power input shaft 14. During installation, the main power input shaft 12 is inserted and rotatably arranged on the intermediate two shaft 15, and the two shafts are coaxial. The two shaft transmission gears 151 on the intermediate two shaft 15 are connected through sliding keys and can slide. When the sliding key is slid to the main power input shaft 12, the power of the main motor 2 can be directly transmitted to the intermediate two shaft 15 without speed reduction.

[0043] The intermediate two shaft 15 is provided with a two shaft transmission mechanism. When the main power input shaft 12 is connected with the power conversion mechanism, the intermediate two shaft 15 is selectively connected with the main power input shaft 12 or the intermediate shaft 13 through the two shaft transmission mechanism. When the dividing adjustment power input shaft 14 is connected with the power conversion mechanism, the intermediate shaft 13 and the intermediate two shaft 15 are connected through the two shaft transmission mechanism, and the intermediate two shaft 15 and the power output shaft 16 are connected through a second gear set. The power conversion mechanism of the utility model lists two kinds, one is gear transmission, and the other is worm gear transmission. The two are essentially the same, and both are to transmit the power of the main motor 2 or the dividing motor 3 to the power output shaft 16.

[0044] Referring to Figure 6 , Figure 7 , the utility model discloses a power conversion mechanism, first power conversion gear 131 is connected on intermediate axle 13, the main power input shaft 12 is provided with main power input gear 121, and the index adjustment power input shaft 14 is provided with index adjustment power input gear 141, and power conversion gear is meshed with main power input gear 121 or index adjustment power input gear 141 selectively. The power source of power output shaft 16 is two kinds, when first power conversion gear 131 is meshed with the index adjustment power input gear 141 of index motor 3, the rotary power of lathe rotary table 4 comes from index motor 3 at this time, and the volume of index motor 3 (for permanent magnet servo motor) is relatively smaller, and the power is lower, and it is generally applicable to accurate index adjustment or low speed rotation, and it is applicable to milling, boring and other processes. First power conversion gear 131 can slide, and the power switching is generally realized through shift fork (not shown in the drawing), and the technology of realizing power switching by shift fork is mature prior art, and has very wide application in vehicle gearbox.

[0045] The utility model discloses a power conversion mechanism, second power conversion gear 133 and worm and gear mechanism, the worm wheel 134 of worm and gear mechanism is arranged in intermediate axle 13, and the worm 135 of worm and gear mechanism is arranged in instead index adjustment power input shaft 14, and second power conversion gear 133 can be combined with the end face of worm wheel 134 or separate end face combination selectively. Second power conversion gear 133 is same with first power conversion gear 131, Figure 8 The relative surface between worm wheel 134 and second power conversion gear 133 can be installed toothed disc, realizes power transmission through the toothing end face of toothed disc, and second power conversion gear 133 can realize the meshing transmission of two toothing surfaces after sliding a certain distance through shift fork. Gear meshing transmission is the most stable and effective transmission mode, and the power transmission in the utility model preferably selects gear transmission.

[0046] Referring to Figure 8 , Figure 9 , the utility model discloses a two-shaft transmission mechanism, two-shaft transmission gear 151 is connected in intermediate two axle 15 by sliding and key, and intermediate axle small gear 132 is arranged on intermediate axle 13, when the main power input shaft 12 is connected with power conversion mechanism, and intermediate two axle 15 is connected with main power input shaft 12 through two-shaft transmission gear 151 or is connected through two-shaft transmission gear 151 and intermediate axle small gear 132, when the index adjustment power input shaft 14 is connected with power conversion mechanism, and intermediate axle 13 is connected with intermediate two axle 15 through two-shaft transmission gear 151 and intermediate axle small gear 132.

[0047] The second gear set of the utility model includes double sliding gear 152 arranged on the middle second shaft 15 and first power output gear 161 and second power output gear 162 arranged on the power output shaft 16, and the double sliding gear 152 is selectively engaged with the first power output gear 161 or the second power output gear 162. When the middle first shaft pinion 132 and the first power conversion gear 131 are engaged and driven, one-stage reduction is realized, and then the speed ratio of the second shaft transmission gear 151 on the middle second shaft 15, the double sliding gear 152, the first power output gear 161 and the second power output gear 162 on the power output shaft 16 is adjusted, and then appropriate power is transmitted to the power output shaft 16. In the above process, the double sliding gear 152 arranged on the middle second shaft 15 and the first power output gear 161 and the second power output gear 162 arranged on the power output shaft 16, the double sliding gear 152 is selectively engaged with the first power output gear 161 or the second power output gear 162, and the middle first shaft 13, the middle second shaft 15 and the power output shaft 16 are connected to the same driving gear ring 421, and the multiple gears on the power output shaft 16 after speed change are driven by the bevel gear pair to change the transmission direction, and then the driving gear ring 421 in the machine tool rotary table 4 is rotated, and the rotation speed and rotation angle can be monitored through the control system and the rotary table encoder 431. The double sliding gear 152 is prior art, and a single sliding gear can also be used. Figure 9 The middle second shaft 15 and the power output shaft have only one-stage speed change, and are suitable for small machine tools with less speed change.

[0048] The utility model discloses a driving device for two sets, and the output shafts of the two sets of power devices are respectively connected to the same driving gear ring 421, and the driving part includes a main motor 2 and an indexing motor 3, the main power input shaft 12 is connected to the motor shaft of the main motor 2, and the indexing adjustment power input shaft 14 is connected to the motor shaft of the indexing motor 3.

[0049] Of course, the utility model also has other various embodiments, and the skilled in the art can make various corresponding changes and modifications according to the utility model without departing from the spirit and essence of the utility model, but these corresponding changes and modifications should all belong to the protection scope of the claims attached to the utility model.

Claims

1. A vertical turning and milling center rotary table comprising: The machine tool rotary table comprises a driving device, a rotary table base, a rotary table body and a rotary body, the rotary body is rotatably installed on the rotary table base, the rotary body is coaxially arranged with the rotary table body and is fixedly connected, the rotary body is provided with a driving gear ring, and the driving device is in transmission connection with the driving gear ring; characterized in that, A fixed support is installed at the bottom of the rotary table base, one side of the rotary table base is hingedly connected to the fixed support through a rotating shaft, the rotary table base is hollow, the driving device is arranged on the inner side of the rotary table base, and a turnover device is arranged between the rotary table base and the fixed support.

2. The vertical turning and milling center rotary table according to claim 1, characterized in that, The turnover device comprises a turnover oil cylinder, a cylinder body of the turnover oil cylinder is hingedly connected to the fixed support, and a piston rod of the turnover oil cylinder is hingedly connected to the rotary table base; one end of the rotating shaft is provided with a turnover servo motor with an encoder.

3. The vertical turning and milling center rotary table according to claim 2, characterized in that, The turnover device comprises a locking mechanism, the locking mechanism comprises a locking groove, a locking block and a locking oil cylinder, the locking groove is arranged on the fixed support, the locking oil cylinder is arranged between the locking block and the fixed support, the locking oil cylinder drives the locking block to slide in the locking groove, and locking of the rotary table base and the fixed support is realized.

4. The vertical turning and milling center machine tool rotary table according to claim 3, wherein, The outer end surface of the locking block and the inner end surface of the locking groove are in matched wedge shapes.

5. The vertical turning and milling center machine tool rotary table according to claim 1, wherein, The driving device comprises a conversion box, a main power input shaft, an intermediate shaft, a division adjustment power input shaft, an intermediate two shaft and a power output shaft are rotatably installed in the box body of the conversion box; the main power input shaft is rotatably installed coaxially with the intermediate two shaft; a power conversion mechanism is arranged on the intermediate shaft; the power conversion mechanism is selectively in transmission connection with the main power input shaft or the division adjustment power input shaft; a two-shaft transmission mechanism is arranged on the intermediate two shaft, when the main power input shaft is in transmission connection with the power conversion mechanism, the intermediate two shaft is selectively in transmission connection with the main power input shaft or the intermediate shaft through the two-shaft transmission mechanism, when the division adjustment power input shaft is in transmission connection with the power conversion mechanism, the intermediate shaft and the intermediate two shaft are in transmission connection through the two-shaft transmission mechanism, and the intermediate two shaft and the power output shaft are in transmission connection through a second gear set.

6. The vertical turning and milling center machine tool rotary table according to claim 5, wherein, The power conversion mechanism comprises a first power conversion gear, the first power conversion gear is in sliding connection on the intermediate shaft, the main power input shaft is provided with a main power input gear, the division adjustment power input shaft is provided with a division adjustment power input gear, and the power conversion gear is selectively in meshing with the main power input gear or the division adjustment power input gear.

7. The vertical turning and milling center machine tool rotary table according to claim 5, wherein, The power conversion mechanism comprises a second power conversion gear and a worm and gear mechanism, a worm wheel of the worm and gear mechanism is arranged on the intermediate shaft, a worm of the worm and gear mechanism is arranged on the division adjustment power input shaft, and the second power conversion gear is selectively in end surface combination or out of end surface combination with the worm wheel.

8. The vertical turning and milling center machine tool rotary table according to claim 5, wherein, The two-shaft transmission mechanism comprises a two-shaft transmission gear which is slidingly and key-connected on the intermediate second shaft, and an intermediate first shaft pinion is arranged on the intermediate first shaft, when the driving input shaft is drivingly connected with the power conversion mechanism, the intermediate second shaft is drivingly connected with the driving input shaft through the two-shaft transmission gear or drivingly connected through the two-shaft transmission gear and the intermediate first shaft pinion; when the indexing adjustment driving input shaft is drivingly connected with the power conversion mechanism, the intermediate first shaft is drivingly connected with the intermediate second shaft through the two-shaft transmission gear and the intermediate first shaft pinion. The second gear set comprises a doublet sliding gear arranged on the intermediate second shaft and a first power output gear and a second power output gear arranged on the power output shaft, and the doublet sliding gear is selectively engaged with the first power output gear or the second power output gear.

9. The vertical turning and milling center machine tool rotary table according to claim 5, wherein, The driving input shaft is drivingly connected with a motor shaft of a main motor, the indexing adjustment driving input shaft is drivingly connected with a motor shaft of an indexing motor, and the power output shaft is drivingly connected with the driving gear ring through a plurality of gear pairs.

10. The vertical turning and milling center machine tool rotary table according to claim 5, wherein, The driving device is two sets, and the power output shafts of the two sets of driving devices are respectively drivingly connected with the driving gear ring. The driving device is two sets, and the power output shafts of the two sets of driving devices are respectively drivingly connected with the driving gear ring.

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