CN214922277U - High-precision workbench - Google Patents

Abstract

The utility model relates to a high accuracy workstation includes at least: the first numerical control rotary table is mainly used for bearing the workpiece and driving the workpiece to rotate; the second numerical control rotary table is used for controlling the rotation of the first numerical control rotary table in a working interval; the first numerical control rotary table is mainly used for bearing the workpiece and driving the workpiece to rotate; the second numerical control rotary table is used for controlling the rotation of the first numerical control rotary table; and the fixing seats are used for fixing the first side fixing seat and the second side fixing seat at two ends to form a U-shaped structure of the workbench, and the first side fixing seat and the second side fixing seat can rotatably support the first numerical control rotary table from two sides respectively. The first numerical control rotary table and/or the second numerical control rotary table comprise/comprises a roller envelope reducer, the roller envelope reducer at least comprises a worm wheel and a worm, and asymmetrical annular worm teeth are distributed in the axial direction of the worm. The utility model has the advantages of high transmission efficiency, high transmission precision, strong bearing capacity and the like.

Description

High-precision workbench

Technical Field

The utility model relates to a numerical control swivel work head technical field especially relates to a high accuracy workstation.

Background

The numerical control machine tool is often used for producing and processing parts with complex shape and structure, high requirement on batch large precision, short-period manufacture and the like, the numerical control rotary worktable is a common part on the numerical control machine tool, the numerical control rotary worktable is mainly used for fixing or supporting plate type and box type workpieces and carrying out continuous rotary processing and multi-surface processing on the plate type and the box type workpieces, the manufacturability can be enlarged and the processing time can be shortened by using the numerical control rotary worktable, and the numerical control rotary worktable can be used for feeding, indexing or reversing and the like of procedures such as boring, linear or planar milling or grinding and the like on the plate type and the box type workpieces.

CN207309412U discloses a novel roller cam gapless five-axis numerical control rotary table, which comprises a rotary table main body, wherein a fixed base is fixed at the bottom of the rotary table main body, side fixing plates are welded at the left side and the right side of the top of the fixed base, a movable motor is movably arranged at the inner side of the top end of each side fixing plate, the outer surface of each movable motor is connected with a movable table, a connecting column is embedded in the front of each movable table, a rotary motor is movably arranged in the middle of the inner part of each connecting column, a rotary column is fixed in the middle of the top end of each rotary motor, a plurality of uniformly distributed embedded grooves are fixed on the outer side of each rotary column, each movable motor is arranged, each side fixing plate is movably connected with each movable table through the corresponding movable motor, each movable table is made of light steel, the movable tables can swing back and forth through the corresponding movable motors, the machining angles are inclined, and the rotary tables are used for machining gaps which are drilled in a more undercut, thereby improving the working efficiency.

CN211867123U discloses a cam roller turntable for a horizontal cam exchange table, which comprises a box body, a rotating seat rotatably mounted on the box body through a rotating output shaft, a cam roller transmission mechanism for transmitting the rotating output shaft, a driving motor, a rotating workbench and a plurality of conical seats connected between the rotating workbench and the rotating seat, wherein each conical seat comprises an upper conical component and a lower conical component; the upper cone component is installed on the rotary workbench, the lower cone component is installed on the rotary seat, the piston slides up and down in the lower cone seat and the lower ring body, a plurality of balls can be driven to move inwards or outwards, so that the pin head of the hanging pin of the upper cone component is locked or unlocked, the function of locking the upper cone component and the lower cone component together or unlocking is achieved quickly, and therefore the function of locking or unlocking the rotary seat and the rotary workbench can be realized.

Although the numerical control rotary table provided by the prior art can be used for auxiliary processing of workpieces to a certain extent, the technical problems of low precision, poor transmission efficiency, high operation noise, weak bearing capacity and the like during rotation of the worm wheel and the worm still exist. Thus, there remains a need in the art for at least one or several aspects of improvement.

Furthermore, on the one hand, due to the differences in understanding to the person skilled in the art; on the other hand, since the inventor studied a lot of documents and patents when making the present invention, but the space did not list all details and contents in detail, however, this is by no means the present invention does not possess these prior art features, but on the contrary the present invention has possessed all features of the prior art, and the applicant reserves the right to increase the related prior art in the background art.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a high accuracy workstation aims at solving at least one or more technical problem that exist among the prior art.

In order to achieve the above object, the utility model provides a high-precision workbench, at least include: the first numerical control rotary table is mainly used for bearing the workpiece and driving the workpiece to rotate; the second numerical control rotary table is used for controlling the rotation of the first numerical control rotary table in a working interval; the fixing seat is used for fixing the first side fixing seat and the second side fixing seat at two ends to form a U-shaped framework of the workbench, wherein the first side fixing seat and the second side fixing seat can rotatably support the first numerical control rotary table from two sides respectively, and the servo driving device in the second side fixing seat is used for driving the second numerical control rotary table.

Preferably, the first numerical control rotary table and/or the second numerical control rotary table at least comprise a roller envelope reducer, the roller envelope reducer comprises a worm wheel and a worm, and a plurality of rollers are distributed on the circumferential outer side face of the worm wheel.

Preferably, the worm comprises a first worm and a second worm connected with the first worm by a connecting shaft at one end of the first worm, wherein the worm teeth of the first worm and the second worm are formed by the tooth surfaces of different tooth types as mother surfaces through conjugate motion envelopes.

Preferably, worm face and worm teeth which are in mirror symmetry with respect to the center portion in butt joint with each other are distributed along the axial direction of the first worm and the second worm respectively.

Preferably, the rollers on the worm wheel face can be form-fitted to the gaps of the worm teeth of the worm, wherein the worm wheel can be fitted to the worm in such a manner as to rotate following the rotation of the worm, and the rotation axes of the worm wheel and the worm are out of plane with each other.

Preferably, the side end face of the worm is connected with and/or provided with at least one worm gear, and the worm gear can drive the worm to rotate around the axis of the worm under the drive of the servo drive device.

Preferably, the worm wheel is connected to the central rotating shaft through a through hole in the worm wheel, one end of the central rotating shaft is connected to the connecting column, and the central rotating shaft can rotate along with the worm wheel and drive the connecting column connected with the central rotating shaft to rotate coaxially.

Preferably, the top of the connecting column is connected with a third rotating table, the top of the third rotating table is connected with a second rotating table, and the top of the second rotating table is connected with a first rotating table, wherein the first rotating table, the second rotating table and/or the third rotating table can rotate along with the rotation of the connecting column.

Preferably, a plurality of mounting grooves and/or mounting holes which can be adapted to the shape of the workpiece and/or used for fixing the workpiece are arranged on the mounting surface of the first numerical control rotary table, so that the workpiece fixed on the mounting surface of the first numerical control rotary table can rotate along with the rotation of the first numerical control rotary table.

Preferably, the surface of the fixing seat and/or the first side fixing seat is connected with an adapter part, the adapter part is connected to the movable part through a connecting shaft on the surface of the adapter part, and the movable part is provided with a connecting hole and can be connected with the adapter part and/or the worm through the connecting hole.

Preferably, the first worm and the second worm are mirror-asymmetric with respect to each other, and the first worm and the second worm are provided with a plurality of steps of different numbers from each other along respective one ends of axes thereof.

Preferably, the first numerical control rotary table is installed in an installation chamber located between the first side fixing seat and the second side fixing seat, and a servo driving device is arranged in the installation chamber and connected to the worm gear.

Preferably, the surface of the fixing seat is provided with a fixing hole, and the fixing seat can be at least installed on the numerical control machine tool through the fixing hole and/or connected with the first side fixing seat and/or the second side fixing seat through the fixing hole.

The beneficial technical effects of the utility model include following one or more:

1. the utility model discloses use roller envelope reduction gear in numerical control revolving platform occasion for the first time to replace traditional variable helical pitch worm gear transmission, thereby realize numerical control revolving platform and promote by a wide margin on the gyration precision.

2. The utility model discloses a special construction of worm wheel among roller envelope reduction gear is different from traditional worm gear reduction gear, can be so that this worm gear transmission has higher efficiency and higher transmission precision.

3. The utility model discloses the special construction of well worm and worm tooth has also further promoted the transmission efficiency between worm wheel and worm and has realized the super-silent operation to make this revolving platform have a series of advantages such as high positioning accuracy, high transmission efficiency, super-silent operation.

4. The utility model discloses well worm adopts the form of anchor ring worm to guarantee to have the worm face worm-tooth meshing of a plurality of worm wheel face roller flank of tooth and worm simultaneously, greatly degree ground has improved bearing capacity.

Drawings

Fig. 1 shows a schematic structural view of a preferred embodiment of the invention in a perspective view;

FIG. 2 is a preferred isometric view of the present invention;

FIG. 3 is a right side view, preferably viewed in a first direction, of the perspective of the invention shown in FIG. 2;

fig. 4 is a top view, preferably viewed in a third direction, of the perspective view of the invention shown in fig. 2;

FIG. 5 is a preferred isometric view of the worm of the present invention;

FIG. 6 is a preferred cross-sectional view of a snail tooth;

fig. 7 is a schematic partial cross-sectional view of the worm in engagement with the worm gear.

List of reference numerals

100: roller envelope speed reducer 101: the first rotating table 102: second rotating table

103: third rotating table 104: connecting column 105: worm wheel

106: the center rotating shaft 107: worm 108: worm gear

200: the fixing seat 201: fixing hole 300 a: first side fixing seat

300 b: second side holder 300 c: installation chamber 400: switching part

401: the movable portion 500: first numerical control turret 600: second numerical control rotary table

1071: first worm 1072: second worm 1073: volute face and volute teeth

71 a: first worm left tooth surface 71 b: first worm tooth right tooth surface 72 a: left tooth surface of second worm tooth

72 a: second worm right tooth surface 1051: roller 1051 a: left tooth surface of roller

1051 b: roller right tooth surface

Detailed Description

This is described in detail below with reference to fig. 1-7.

In the description of the present invention, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are used in the orientation or positional relationship indicated on the basis of the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, it should also be understood that unless otherwise explicitly specified or limited, "over" or "under" a first feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, it should be understood that "first direction", "second direction" and "third direction" herein refer to: the axis X along the length direction of the fixing base 200 is the "first direction", the axis Y along the width direction of the fixing base 200 is the "second direction", and the axis Z along the height direction of the fixing base 200 is the "third direction".

The utility model provides a high accuracy workstation, see fig. 1-4, it can include one of following parts: a first numerical control turntable 500 for mainly carrying a workpiece and driving the workpiece to rotate; a second numerically controlled turret 600 for controlling the rotation of the first numerically controlled turret 500 within the working interval; the fixing base 200, a plurality of fixing holes 201 have been seted up on its surface, the fixing base 200 can be installed on the digit control machine tool through fixing hole 201, detachably fixed mounting has first side fixing base 300a and second side fixing base 300b at fixing base 200 both ends, and fixing base 200 forms the U-shaped framework of workstation with first side fixing base 300a and second side fixing base 300b combination, wherein, first numerical control revolving platform 500 is rotatably supported from both sides respectively to first side fixing base 300a and second side fixing base 300b, the servo drive device in the second side fixing base 300b is used for driving second numerical control revolving platform 600.

According to a preferred embodiment, an adapter 400 is arranged on one side of the first side fixing seat 300a close to the middle of the workbench in the first direction along the workbench, and the adapter 400 is formed by combining an arc-shaped three-dimensional structure and a cubic structure. A rigid connecting shaft can be provided and/or connected near the central region of the adapter 400, which can be used for fastening and/or connecting the movable part 401. Further, the movable part 401 is plate-shaped, a plurality of connecting holes with different sizes are formed in the surface of the movable part, and the adapter part 400 is movably connected based on the matching relationship between the connecting shaft and the connecting holes in the movable part 401; on the other hand, the movable portion 401 can also be connected to the worm 107 located in the first numerical control turret 500 through a connection hole matching the diameter of the worm 107. Preferably, the movable part 401 can follow the rotation of the first numerical control turret 500 in the Y-Z plane to rotate on the connecting shaft of the joint 400 and the movable part 401, so that the movable part 401 can be fitted to the rotation of the first numerical control turret 500.

According to a preferred embodiment, the first side mount 300a rotatably supports and connects to a first numerically controlled turret 500 via an adapter 400 and a movable part 401, wherein the first numerically controlled turret 500 comprises a roller-envelope reducer 100, see fig. 1. Specifically, the first numerically controlled turret 500 may be mounted and/or secured within the mounting chamber 300c, and the mounting chamber 300c may be fixedly coupled to the movable portion 401 via a threaded hole in the movable portion 401, see FIGS. 1-2.

According to a preferred embodiment, the roller-envelope reducer 100 may include a worm 107 and a worm gear 105, see FIG. 1. Alternatively, the worm 107 may be segmented and include a first worm 1071 and a second worm 1072, the respective worm teeth 1073 of the two segments being mirror images of the central portion where they abut against each other, see fig. 5 and 7. One end of the first worm 1071 close to the second worm 1072 is provided with a connecting rod such as a cylinder, see fig. 5. The second worm 1072 has a hollow passage such as a cylinder inside, and the inner diameter of the hollow passage matches the diameter of the connecting rod at one end of the first worm 1071. The second worm 1072 can be sleeved on the connecting shaft of the first worm 1071 through a hollow passage and move on the connecting shaft along a side close to the first worm 1071 so as to be able to form a complete worm 107 with the first worm 1071. Preferably, respective spring tensioning means may be provided between adjacent worm teeth 1073 of the first and second worm 1071, 1072 for adjusting the inter-tooth meshing gap of the two worm stages. The rod portions of the first and second worms 1071 and 1072 other than the worm face worm teeth 1073 are asymmetrical with each other, that is, the first and second worms 1071 and 1072 are each provided with a different number of steps along one end of the axis thereof, in order to facilitate the mounting of the first and second worms 1071 and 1072, see fig. 5.

According to a preferred embodiment, the worm teeth 1073 of the first and second worms 1071, 1072 are respectively formed by the tooth surfaces of different tooth types of gears as generatrices through a conjugate motion envelope. Further, at least one worm gear 108 is connected to a side end surface of the worm 107, and the worm gear 108 may be connected to a servo driving device such as a motor, so that the worm gear 108 can drive the worm 107 to rotate under the driving of the servo driving device. Alternatively, a servo driving means for controlling the rotation of the first numerical control turret 500 may be provided in the installation chamber 300c, see fig. 2. Specifically, the servo drive device can transmit a driving force to the worm 107 through the worm gear 108 to rotate the worm 107 along its axis, the worm 107 further transmits a force to the worm wheel 105 in contact with the worm 107 to rotate it, and the worm wheel 105 and the worm 107 are perpendicular to each other in the rotation axis space. Preferably, the worm wheel roller is engaged with the worm teeth 1073 of the worm 107 by the worm wheel 105 to form a spatial engagement curved surface in space. The curved surface is characterized by a space envelope surface consisting of a track envelope surface formed by the rotation of the roller around the axis of the worm wheel 105 and the rotation of the worm 107, and the rotating speed ratio of the two rotations is the transmission ratio of the worm wheel 105 and the worm 107.

According to a preferred embodiment, in contact with the worm face teeth 1073 of the worm 107 and force transmission takes place through the disk-shaped worm wheel 105, see fig. 1. Specifically, the worm wheel 105 is surfaced with and/or attached to a number of rollers 1051. Preferably, the rollers 1051 may be distributed with some clearance on the annular side of the worm wheel 105. Preferably, the shape of the roller 1051 includes, but is not limited to, spherical, ellipsoidal, cylindrical, and the like. The rollers 1051 on the surface of the worm wheel 105 can be clearance-form-fitted with the worm teeth 1073 of the worm 107. Preferably, the worm 107 is in the form of a toroidal worm, and the first right tooth face 71b of the worm gear 1073 on the first worm 1071 is kept in mesh with the left roller tooth face 1051a of the roller 1051 on the worm wheel 105, and the second left tooth face 72a of the worm gear 1073 on the second worm 1072 is kept in mesh with the right roller tooth face 1051b of the roller 1051 on the worm wheel 105, thereby completely eliminating the backlash between the worm wheel 105 and the worm 107 during the forward and reverse rotation. Particularly, the transmission mode of the worm wheel 105 and the worm 107 which are precisely attached has higher transmission efficiency and higher transmission precision, and meanwhile, the bearing capacity is greatly improved. Preferably, the roller 1051 is rotatable.

According to a preferred embodiment, a central rotating shaft 106 is connected to the inside of the worm wheel 105, and the central rotating shaft 106 is hollow and cylindrical, and a part of the shaft body extends outwards to one side of the worm wheel 105 along the axial direction. Further, the central rotating shaft 106 is connected with a connecting column 104 having a cylindrical shape, see fig. 1. Further, a third rotating table 103 is connected to the connecting column 104. Preferably, the third rotation table 103 is connected to the first rotation table 101 and the second rotation table 102 at the top, wherein the second rotation table 102 is connected to the third rotation table 103 at the bottom and the second rotation table 102 is connected to the first rotation table 101 at the top. The first, second and third rotating tables 101, 102 and 103 have the same disk size, and the connecting column 104 and each rotating table rotate in the same direction with the central rotating shaft 106 as the rotating shaft.

According to a preferred embodiment, the second numerically controlled turret 600 may be mounted within a second side mount 300b located on the right side of the mount 200, see FIG. 2. The second side holder 300b is also provided therein with a servo driving device. Preferably, the servo driving device drives the worm 107 to rotate through the worm gear 108, so as to drive the worm wheel 105 to rotate. Further, the central rotating shaft 106 in the worm wheel 105 is driven by the worm wheel 105 to rotate, so that the connecting column 104 and the first, second and third rotating tables 101, 102 and 103 connected to the connecting column 104 rotate together, wherein the rotating centers of the worm wheel 105, the connecting column 104, the first, second and third rotating tables 101, 102 and 103 are the central rotating shaft 106.

Preferably, a common bearing structure is arranged in the installation chamber 300c where the first numerical control rotary table 500 is located and/or the first side fixing seat 300a where the second numerical control rotary table 600 is located for supporting and fixing the worm wheel 105, the worm 107, and various rotating tables and/or installation tables. The installation surface of the first numerical control turntable 500 can be provided with various installation holes or installation grooves and the like which can be matched with the shape of a workpiece, and the installation holes or installation grooves can be used for fixing workpieces with complicated forms such as plate shapes, disc shapes and column shapes; the matched tailstock can be used for installing the machined parts of the rods and the shafts, so that the machining of the uniform and non-uniform continuous hole disc, the groove disc and the curved surface is realized, and the machining is shown in figure 2.

Preferably, the second numerical control turret 600 in the present embodiment is mainly used for controlling the rotation direction and/or speed of the first numerical control turret 500 in the Y-Z plane when the central rotating shaft 106 is used as the rotating shaft, and the second numerical control turret 600 may be connected to the installation chamber 300c where the first numerical control turret 500 is located in the middle of the working table, so that the first numerical control turret 500 can rotate in the Y-Z plane, and the movable portion 401 will rotate in the Y-Z plane by using the connecting shaft collinear with the central rotating shaft 106 as the rotating center in cooperation with the second numerical control turret 600, so that the workpiece on the installation surface of the first numerical control turret 500 can rotate in the Y-Z plane while rotating, as shown in fig. 1-2. Further, the workpiece on the first numerical control turret 500 may be subjected to machining in the form of cobalt, milling, boring, tapping, curved surface machining, and the like by a machining tool.

For easy understanding, the working principle and the using method of the high-precision workbench of the present invention will be discussed.

When the high-precision workbench provided by the application is used, the workbench provided by the application is arranged on a numerical control machine tool through a fixed seat 200, and a workpiece to be machined is fixed on a mounting surface of a first numerical control rotary table 500 positioned in the middle of the workbench shown in fig. 1-2. Further, the corresponding servo drive means is activated by a control program of the system, a driving force of the servo drive means is transmitted to the worm 107 after being decelerated by the worm gear 108, and the worm 107 is rotated to further transmit the driving force to the worm wheel 105 to rotate. Secondly, the mounting table positioned at the top of the first numerical control rotary table 500 coaxially rotates under the driving of the rotation of the worm 107 and the worm wheel 105, so that the workpiece to be processed positioned on the mounting table also rotates; meanwhile, under the driving of the servo driving device, the second numerical control rotary table 600 is matched with the movable part 401 positioned at the left side of the workbench to drive the first numerical control rotary table 500 positioned at the middle part to rotate in the Y-Z plane. In the rotation and/or rotation process of the first numerical control rotary table 500, the machining device can be used for machining the workpiece in the forms of cobalt, milling, boring, tapping, curved surface machining and the like.

The utility model provides a high-precision workbench, the roller envelope reduction gear is used in numerical control revolving platform occasion for the first time, has replaced traditional variable lead worm gear transmission to promote numerical control revolving platform's gyration precision by a wide margin, wherein, the special structure difference of worm wheel and traditional worm gear reduction gear can make this worm gear transmission have higher efficiency and higher transmission precision; the utility model discloses the special construction of well worm gear teeth has also further promoted worm gear's transmission efficiency and realized the super-silent operation to make this revolving platform have a series of advantages such as high positioning accuracy, high transmission efficiency, super-silent operation.

It should be noted that the above-mentioned embodiments are exemplary, and those skilled in the art can devise various solutions in light of the present disclosure, which are also within the scope of the present disclosure and fall within the scope of the present disclosure. It should be understood by those skilled in the art that the present specification and drawings are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.

Claims (10)

1. A high precision table comprising at least:

a first numerical control rotary table (500) which is mainly used for bearing the workpiece and driving the workpiece to rotate,

a second numerically controlled turret (600) for controlling the rotation of the first numerically controlled turret (500) within a work space,

a holder (200) for fixing a first side holder (300a) and a second side holder (300b) at both ends to form a U-shaped structure of the work table,

wherein the first side fixing seat (300a) and the second side fixing seat (300b) respectively rotatably support the first numerical control rotary table (500) from two sides, wherein the first side fixing seat (300a) is used for supporting and/or connecting the first numerical control rotary table (500), a servo driving device in the second side fixing seat (300b) is used for driving the second numerical control rotary table (600), wherein,

the first numerical control turret (500) and/or the second numerical control turret (600) comprising a roller-envelope reducer (100), the roller-envelope reducer (100) comprising at least a worm wheel (105) and a worm (107),

wherein a plurality of rollers (1051) are distributed on the circumferential outer side surface of the worm wheel (105),

it is characterized in that the preparation method is characterized in that,

the worm (107) is composed of a first worm (1071) and a second worm (1072), wherein worm face worm teeth (1073) which are in mirror symmetry with respect to the center part in butt joint with each other are respectively distributed along the axial direction of the first worm (1071) and the second worm (1072).

2. The table according to claim 1, wherein the worm-face worm-teeth (1073) provided to each of the first worm (1071) and the second worm (1072) are formed in a conjugate motion envelope with the tooth-faces of the gears of different tooth types as a generatrix.

3. The table according to claim 1, characterized in that the rollers (1051) on the circumferential outer side of the worm wheel (105) can be form-fitted to the gaps of the worm teeth (1073) of the worm (107), wherein the worm wheel (105) can be fitted to the worm (107) in such a way as to rotate following the rotation of the worm (107), and the axes of rotation of the worm wheel (105) and the worm (107) are out of plane with each other.

4. A table according to claim 1, wherein the worm screw (107) is provided at least one end with at least one worm gear (108) connected to the servo drive, wherein the worm gear (108) is adapted to rotate the worm screw (107) about its axis in such a way that the driving force of the servo drive is conducted to the worm screw (107).

5. The workbench according to claim 1, wherein a central rotating shaft (106) is connected in the worm wheel (105), a connecting column (104) is arranged on the central rotating shaft (106), the central rotating shaft (106) drives the connecting column (104) connected therewith to rotate coaxially in a manner of following the rotation of the worm wheel (105), and the rotating axes and/or rotating planes of the central rotating shaft (106) and the worm (107) are different from each other.

6. The work table according to claim 1, characterized in that said first worm (1071) and second worm (1072) are mirror-asymmetric with each other, wherein said first worm (1071) is externally applied to said first worm (1071) by inserting its connecting shaft into the hollow channel of said second worm (1072).

7. The workbench according to claim 1, wherein the mounting surface of the first numerically controlled turret (500) is provided with a plurality of mounting slots and/or mounting holes adapted to the shape of the workpiece and/or for fixing the workpiece, so that the workpiece fixed on the mounting surface of the first numerically controlled turret (500) can rotate in a manner rotating with the first numerically controlled turret (500).

8. The workbench according to claim 1, wherein an adapter part (400) is connected to the surface of the fixing base (200) and/or the first side fixing base (300a), a movable part (401) is connected to one side of the adapter part (400) along the first direction, and the movable part (401) can be connected to the adapter part (400) and/or the worm (107) through a connecting hole on the surface of the movable part.

9. The table of claim 1, wherein the first numerically controlled turret (500) is mounted in a mounting chamber (300c) between the first side mount (300a) and the second side mount (300b), the mounting chamber (300c) having a servo drive disposed therein, the servo drive being connected to the worm gear (108).

10. The workbench according to claim 1, wherein a fixing hole (201) is formed in a surface of the fixing base (200), the fixing base (200) can be at least installed on a numerical control machine tool through the fixing hole (201), and/or is connected with the first side fixing base (300a) and/or the second side fixing base (300b) through the fixing hole (201).

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