CN211540261U

CN211540261U - High accuracy milling machine with adjustable angle

Info

Publication number: CN211540261U
Application number: CN201922457831.2U
Authority: CN
Inventors: 张建兴; 宋娜; 张寅�
Original assignee: Changzhou Ruiyu Communication Equipment Manufacturing Co ltd
Current assignee: Changzhou Ruiyu Communication Equipment Manufacturing Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-09-22
Anticipated expiration: 2029-12-30

Abstract

The utility model relates to a high-precision milling machine with adjustable angle, which relates to the technical field of milling machines and comprises a machine body, wherein opposite mounting plates are arranged on the machine body along the longitudinal direction, a mounting shaft is rotatably connected between the two mounting plates, a rotating seat is fixedly connected on the mounting shaft, and a workbench is arranged on the rotating seat; the one end that the installation axle is close to the lathe is equipped with locking device, locking device includes the locking gear and the locking rack of looks adaptation, the locking gear coaxial fixation in install epaxial, just be located on the organism locking gear top is equipped with and drives actuating cylinder, drive actuating cylinder's piston rod with locking rack fixed connection. The utility model discloses it is rotatable to have the workstation, and processing inclined plane need not a lot of clamping, and the machining precision is high, the high effect of processing work piece quality.

Description

High accuracy milling machine with adjustable angle

Technical Field

The utility model belongs to the technical field of the technique of milling machine and specifically relates to a high accuracy milling machine with adjustable angle is related to.

Background

The milling machine is a machine tool for milling a workpiece by using a milling cutter. The milling machine can mill planes, grooves, gear teeth, threads and spline shafts, can also process complex molded surfaces, has higher efficiency than a planer, and is widely applied to mechanical manufacturing and repairing departments. The milling machine is a machine tool with wide application, and can process planes (horizontal planes and vertical planes), grooves (key grooves, T-shaped grooves, dovetail grooves and the like), tooth dividing parts (gears, spline shafts and chain wheels), spiral surfaces (threads and spiral grooves) and various curved surfaces on the milling machine. In addition, the method can be used for machining the surface and inner hole of the revolving body, cutting off the revolving body, and the like. When the milling machine works, a workpiece is arranged on a workbench or accessories such as an indexing head, the milling cutter rotates to move mainly, and the workpiece can obtain a required processing surface by the aid of the feeding motion of the workbench or the milling head. Since the multi-edge intermittent cutting is performed, the productivity of the milling machine is high. In short, a milling machine is a machine tool that can mill, drill, and bore a workpiece.

Chinese patent with publication number CN206567886U discloses a milling machine, which comprises a machine body, the upper end of the machine body is rotatably connected with an installation shaft, the installation shaft is fixedly connected with a milling cutter, the lower end of the installation shaft is also provided with a support table fixedly connected to the machine body, the support table is connected to the machine body in a linear sliding manner, and the support table is fixedly connected with a magnetic suction cup for sucking a thread rolling plate.

The adoption of the scheme has the following defects: according to the scheme, the magnetic sucker is arranged, so that the deformation of the screw plate is reduced, and the processing precision of equipment is improved; however, the angle of the workbench cannot be adjusted, and when an inclined plane is machined, the workpiece can be machined only by adjusting the position of the workpiece in the fixture, and the machining precision is low due to re-clamping, so that the machining quality of the workpiece is affected.

SUMMERY OF THE UTILITY MODEL

According to the not enough of prior art existence, the utility model aims at providing a high accuracy milling machine with adjustable angle has that the workstation is rotatable, and processing inclined plane need not a lot of clamping, and the machining precision is high, the high effect of processing work piece quality.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the high-precision milling machine with the adjustable angle comprises a machine body, wherein opposite mounting plates are longitudinally arranged on the machine body, a mounting shaft is rotatably connected between the two mounting plates, a rotating seat is fixedly connected to the mounting shaft, and a workbench is arranged on the rotating seat;

the one end that the installation axle is close to the lathe is equipped with locking device, locking device includes the locking gear and the locking rack of looks adaptation, the locking gear coaxial fixation in install epaxial, just be located on the organism locking gear top is equipped with and drives actuating cylinder, drive actuating cylinder's piston rod with locking rack fixed connection.

Through adopting above-mentioned technical scheme, rotate the installation axle and can drive and rotate the seat and rotate, rotate the seat and drive the workstation slope again, and then drive the work piece slope on the workstation, the inclined plane of being convenient for process, the adjustment finishes the back, drives actuating cylinder drive locking rack and pushes down, with locking gear engagement, realizes locking, the workstation rotates the back, and the work piece need not clamping many times, and machining precision is high, the high effect of processing work piece quality.

The present invention may be further configured in a preferred embodiment as: the electric transmission mechanism is arranged on the installation shaft and located between the rotating seat and the locking gear, the electric transmission mechanism comprises a worm wheel, a worm and a driving motor, the driving motor is fixedly connected to the machine body, the worm wheel is coaxially fixed with the installation shaft, an output shaft of the driving motor is coaxially fixed with the worm, and the worm wheel are meshed with each other.

Through adopting above-mentioned technical scheme, driving motor starts to drive the worm and rotates, and the worm rotates and drives the worm wheel and rotate, and then drives and rotate the seat and rotate, realizes the slope of electric drive workstation.

The present invention may be further configured in a preferred embodiment as: a longitudinal transmission seat is arranged on the rotating seat, a transverse transmission seat slides on the longitudinal transmission seat, a first lead screw is rotatably connected to the longitudinal transmission seat, and the first lead screw is longitudinally arranged and in threaded connection with the transverse transmission seat;

the workstation slide in on the transverse transmission seat, transverse workstation female connection has the second lead screw, the second lead screw along transversely set up and with the both ends of workstation are rotated and are connected.

Through adopting above-mentioned technical scheme, first lead screw rotates and drives horizontal transmission seat along longitudinal movement, realizes the longitudinal movement of workstation, and the second lead screw rotates, realizes the horizontal removal of workstation.

The present invention may be further configured in a preferred embodiment as: an inner gear is arranged on the side face, far away from the locking gear, of the rotating seat, a first gear and a second gear which are meshed with each other are arranged in the inner gear, the second gear is mounted on the machine body through a supporting plate and is rotationally connected with the supporting plate, the second gear is meshed with the inner gear, the first gear and the inner gear are coaxial, and the diameter of the first gear is not smaller than that of the second gear;

first gear coaxial fixation has the dwang, the dwang with the backup pad is rotated and is connected, the dwang passes the backup pad and is equipped with the third hand wheel.

Through adopting above-mentioned technical scheme, rotate the hand wheel and drive the dwang and rotate, the dwang drives first gear rotation. The first gear is meshed with the second gear to drive the second gear to rotate, and the second gear is meshed with the internal gear to rotate to drive the internal gear to rotate, namely to drive the rotating seat to rotate; and because the first gear is concentric with the internal gear, the diameter of the first gear is not smaller than that of the second gear, so that the first gear rotates at least three times, the internal gear rotates one circle, and the fine adjustment of the rotating seat can be realized.

The present invention may be further configured in a preferred embodiment as: a first key and a second key sequentially slide on the rotating rod along the radial direction of the rotating rod, a first groove for the first key to insert is formed in the first gear, and a second groove for the second key to insert is formed in the inner gear;

a pull rod is arranged in the rotating rod in a sliding manner, a first connecting rod and a second connecting rod are sequentially hinged to the pull rod, and the first connecting rod and the second connecting rod are respectively hinged to the bottom of the first key and the bottom of the second key;

when the first connecting rod is vertical to the axis of the rotating rod, the first key is positioned in the first groove, and the second key is positioned in the rotating rod;

when the second connecting rod is perpendicular to the axis of the rotating rod, the second key is positioned in the second groove, and the first key is positioned in the rotating rod.

By adopting the technical scheme, the angle between the first connecting rod and the axis of the second connecting rod and the axis of the rotating rod can be changed by pulling the pull rod, when the first connecting rod is linearly vertical to the rotating rod, the first key is pushed into the first groove to drive the first gear to rotate so as to realize fine adjustment, at the moment, the second connecting rod is in an inclined state, and the second key is pulled into the rotating rod; when the axis of second connecting rod and dwang was perpendicular, the second key was pushed the second groove, drives the internal gear and rotates, realizes transferring soon, and first connecting rod is in the tilt state this moment, and first key is pulled into in the dwang.

The present invention may be further configured in a preferred embodiment as: a shifting rod is arranged at one end of the pull rod, which is far away from the first gear, the shifting rod penetrates out of the side face of the rotating rod, a shifting groove for the shifting rod to slide is formed in the rotating rod, and the shifting groove is arranged along the axial direction of the rotating rod;

still be equipped with the articulated kelly on the dwang, be equipped with in proper order on the kelly and supply driving lever male first draw-in groove and second draw-in groove.

By adopting the technical scheme, when the shifting lever is respectively positioned at the two extreme positions, the clamping rod can be rotated, so that the shifting lever is clamped into the first clamping groove or the second clamping groove, and the possibility that the first key or the second key retracts into the rotating rod suddenly during working is reduced.

The present invention may be further configured in a preferred embodiment as: and a telescopic handle is connected to the third hand wheel.

Through adopting above-mentioned technical scheme, the handle extension back can reduce the required strength of rotation hand wheel, alleviates workman's manual labor, and when need not to rotate the rotation seat, then can pack up the telescopic link.

The present invention may be further configured in a preferred embodiment as: the workbench comprises an upper pressing plate and a lower pressing plate, and a damping layer is arranged between the upper pressing plate and the lower pressing plate.

Through adopting above-mentioned technical scheme, improve the shock-absorbing capacity of workstation, reduce the vibration and to the influence of milling operation, promote the machining precision, and then promote the processingquality of work piece.

To sum up, the utility model discloses a following at least one useful technological effect:

1. through the arrangement of the mounting shaft, the rotating seat and the locking device, the workbench can rotate, the inclined plane is machined without being clamped for multiple times, the machining precision is improved, and the machining quality of workpieces is improved;

2. the inner gear, the first gear, the second gear and the rotating rod are arranged, so that the effect of fine adjustment of the rotating angle of the rotating seat can be achieved;

3. the first key, the second key, the first connecting rod, the second connecting rod and the pull rod are arranged, so that the effects of fine adjustment and quick adjustment of the rotary seat can be switched at any time;

4. through the setting of buffer layer, can play the shock-absorbing capacity who improves the workstation, reduce the vibration to the influence of milling operation, promote the machining precision, and then promote the processingquality's of work piece effect.

Drawings

Fig. 1 is a schematic structural diagram for embodying the whole in this embodiment.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a partially enlarged schematic view of a portion B in fig. 2.

Fig. 4 is a partially enlarged schematic view of a portion C in fig. 1.

Fig. 5 is a schematic structural diagram for embodying the rotating shaft and the bracket in the present embodiment.

Fig. 6 is a partially enlarged schematic view of a portion D in fig. 5.

Fig. 7 is a sectional structure diagram for embodying the inside of the rotating lever in the present embodiment.

Fig. 8 is a partially enlarged schematic view of a portion E in fig. 7.

In the figure, 1, a machine body; 2. a rotating seat; 21. installing a shaft; 22. mounting a plate; 23. a locking device; 231. a driving cylinder; 232. a locking gear; 233. locking the rack; 24. an electric drive mechanism; 241. a worm gear; 242. a worm; 243. a drive motor; 3. a work table; 31. an upper pressure plate; 32. a lower pressing plate; 33. a shock-absorbing layer; 4. a longitudinal transmission seat; 41. a first lead screw; 42. a first hand wheel; 43. a first slide rail; 5. a transverse transmission seat; 51. a second lead screw; 52. a second hand wheel; 6. an internal gear; 61. a first gear; 611. a first groove; 62. a second gear; 621. a support plate; 63. rotating the rod; 631. a third hand wheel; 6311. a telescopic handle; 632. a pull rod; 6321. a first link; 6322. a second link; 6323. a deflector rod; 633. a first key; 634. a second key; 635. a groove is poked; 636. a clamping rod; 6361. a first card slot; 6362. a second card slot; 65. a second groove; 7. a rotating groove; 71. a rotating shaft; 72. a support frame.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1:

refer to fig. 1, do the utility model discloses a high accuracy milling machine with adjustable angle, including organism 1, organism 1 goes up along vertically being equipped with relative mounting panel 22, rotates between two mounting panels 22 and is connected with installation axle 21, and the seat 2 is rotated to fixedly connected with on the installation axle 21, rotates and is equipped with workstation 3 on the seat 2, and workstation 3 is used for installing the milling machine fixture of clamping work piece, rotates seat 2 then can drive workstation 3 and rotate, the processing inclined plane of being convenient for. A longitudinal transmission seat 4 and a transverse transmission seat 5 are sequentially arranged between the rotating seat 2 and the workbench 3 and are respectively used for realizing the transverse and longitudinal movement of the workbench 3.

Referring to fig. 1 and 5, a longitudinal transmission seat 4 is fixedly connected to a rotating seat 2, a first slide rail 43 for sliding the transverse transmission seat 5 is arranged on the longitudinal transmission seat 4, the first slide rail 43 is longitudinally arranged and transversely arranged oppositely, the longitudinal transmission seat 4 is also rotatably connected with a first lead screw 41, the arrangement direction of the first lead screw 41 is consistent with the sliding direction of the first slide rail 43 and is in threaded connection with the transverse transmission seat 5, and the transverse transmission seat 5 can be driven to longitudinally move by rotating the first lead screw 41; to facilitate the rotation of the first lead screw 41, a first hand wheel 42 is fixedly connected to an end portion of the first lead screw 41 away from the machine body 1. The transverse transmission seat 5 is provided with a second slide rail (not shown in the figure) for the workbench 3 to move transversely, in order to drive the workbench 3 to move transversely, the transverse transmission seat 5 is internally connected with a second lead screw 51 in a threaded manner, two passing ends of the second lead screw 51 are respectively connected with two ends of the workbench 3 in a rotating manner, and when the second lead screw 51 rotates, the workbench 3 can move reversely along the second slide rail because the transverse transmission seat 5 cannot move transversely; to facilitate the rotation of the second lead screw 51, a second wheel 52 is fixedly connected to one end of the second lead screw 51.

Referring to fig. 5 and 6, in order to further support the rotating base 2 and improve the stability of the rotating base 2, a rotating groove 7 is transversely formed in the rotating base 2, the rotating groove 7 is longitudinally and oppositely arranged, a rotating shaft 71 is fixedly connected in the rotating groove 7, a support frame 72 is rotatably connected to the rotating shaft 71, and one end of the support frame 72, which is far away from the rotating shaft 71, is fixed on the machine body 1. In order to improve the damping capacity of the workbench 3 and reduce the influence of vibration on the milling quality, the workbench 3 is divided into an upper pressing plate 31 and a lower pressing plate 32, a damping layer 33 is arranged between the upper pressing plate 31 and the lower pressing plate 32, and the damping layer 33 can be coated outside a stainless steel sheet by adopting a rubber coating mode.

Referring to fig. 1 and 2, an internal gear 6 is fixedly connected to the rotating base 2 toward the rotating rod 63, the internal gear 6 is coaxial with the mounting shaft 21, a first gear 61 and a second gear 62 which are meshed with each other are arranged in the internal gear 6, the first gear 61 is coaxial with the internal gear 6, the second gear 62 is meshed with the internal gear 6, the second gear 62 is mounted on the machine body 1 through a supporting plate 621, the second gear 62 is rotatably connected with the supporting plate 621, the first gear 61 rotates to drive the second gear 62 to rotate, the second gear 62 drives the internal gear 6 to rotate, the diameter of the first gear 61 is not smaller than that of the second gear 62, when the first gear 61 is equal to that of the second gear 62, the diameter of the internal gear 6 is 3 times that of the first gear 61, that is, the first gear 61 rotates three rings, and the internal gear rotates 6 rings, so that fine adjustment of the rotation angle of the. In order to facilitate the rotation of the rotating base 2, a rotating rod 63 coaxial with the mounting shaft 21 is arranged at one end of the rotating base 2 away from the machine body 1, and the rotating rod 63 is rotatably connected with and supported by the supporting plate 621; in order to rotate the rotating rod 63, a third hand wheel 631 is arranged at one end of the rotating rod 63 far away from the first gear 61; in order to reduce the force required for rotating the third hand wheel 631, the third hand wheel 631 is provided with a telescopic handle 6311 which can be extended to rotate the third hand wheel 631, and the third hand wheel is convenient to store when not in use and does not occupy space.

Referring to fig. 7 and 8, the rotating rod 63 is sequentially provided with a first key 633 and a second key 634, the first gear 61 and the internal gear 6 are respectively provided with a first groove 611 and a second groove 65 which are matched with the first key 633 and the second key 634, when the first key 633 is located in the first groove 611, the first gear 61 can be driven to rotate, fine adjustment is achieved, and when the second key 634 is located in the second groove 65, the internal gear 6 can be driven to directly rotate, and fast adjustment is achieved. A pull rod 632 slides in the rotating rod 63, a first link 6321 and a second link 6322 hinged to a first key 633 and a second key 634 are hinged to the pull rod 632 respectively, the first link 6321 and the second link 6322 are arranged in a staggered manner, when the first link 6321 is perpendicular to the rotating rod 63, the first key 633 is located in the first groove 611, the second key 634 is located in the rotating rod 63, and at this time, the rotating rod 63 can drive the first gear 61 to rotate; when the second link 6322 is perpendicular to the rotating rod 63, the second key 634 is located in the second groove 65, and the first key 633 is located in the rotating rod 63, so that rotating the rotating rod 63 can rotate the inner gear 6.

Referring to fig. 3 and fig. 7, in order to facilitate switching fast and fine tuning, a shift lever 6323 is disposed at an end of the pull rod 632 away from the rotating base 2, the shift lever 6323 penetrates out of the rotating rod 63, a shift slot 635 for the shift lever 6323 to slide is disposed on the rotating rod 63, and the fast and fine tuning switching can be achieved by shifting the shift block; in order to reduce the possibility that the first key 633 or the second key 634 suddenly separates from the first groove 611 and the second groove 65 when the rotating rod 63 rotates, a clamping rod 636 is hinged to the rotating rod 63, a first clamping groove 6361 and a second clamping groove 6362 for the shifting rod 6323 to insert are arranged on the clamping rod 636, the two positions of the shifting block correspond to the fine adjustment and the fast adjustment respectively, and the shifting rod 5323 can be locked by rotating the pull rod 632 after the shifting block is shifted to the positions.

Referring to fig. 4, in order to electrically control the rotating base 2, an electric transmission mechanism 24 is disposed at one end of the mounting shaft 21 close to the machine body 1, the electric transmission mechanism 24 includes a worm wheel 241, a worm 242 and a driving motor 243, the driving motor 243 is fixedly connected to the machine body 1, the worm wheel 241 is coaxially fixed with the mounting shaft 21, the worm 242 is coaxially fixed with an output shaft of the driving motor 243, the worm 242 is further engaged with the worm wheel 241, the driving motor 243 is started, the mounting shaft 21 is driven to rotate through the worm wheel 241 and the worm 242, and the rotating base 2 is further driven to rotate, so that electric adjustment is achieved. In order to lock the rotating seat 2, a locking device 23 is arranged at one end of the mounting shaft 21 close to the machine body 1, the locking device 23 comprises a locking gear 232, a locking rack 233 and a driving cylinder 231, the driving cylinder 231 is mounted on the machine body 1 and is located above the locking gear 232, the locking gear 232 is coaxially fixed with the mounting shaft 21, the locking rack 233 is fixedly connected with a piston rod of the driving cylinder 231, the locking rack 233 is matched with the locking gear 232, and when the upper rotating seat 2 needs to be locked, the driving cylinder 231 pushes the locking rack 233 to move downwards to be meshed with the locking gear 232, so that the locking of the rotating seat 2 can be completed.

The implementation process of the embodiment is as follows: when the rotating seat 2 needs to be electrically adjusted, the driving motor 243 drives the worm 242 to rotate, and the worm 242 drives the worm wheel 241 to rotate, that is, the mounting shaft 21 is driven to rotate, so as to drive the rotating seat 2 to rotate, thereby realizing the electrical adjustment of the angle of the rotating seat 2.

When the manual fine adjustment is needed, the shifting lever 6323 is shifted to enable the first connecting rod 6321 to be perpendicular to the rotating rod 63, the first key 633 is simultaneously located in the rotating rod 63 and the first groove 611 at the moment, the clamping rod 636 is rotated to lock the shifting lever 6323, the rotating rod 63 is rotated to drive the first gear 61 to rotate, and then the second gear 62 and the internal gear 6 are driven to rotate, so that the fine adjustment is achieved.

When needs manual fast accent, rotate kelly 636, loosen driving lever 6323, stir driving lever 6323, make second connecting rod 6322 perpendicular with dwang 63, second key 634 is located second groove 65 and dwang 63 simultaneously this moment, rotates dwang 63 and can drive internal gear 6 and rotate, realizes fast the accent.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a high accuracy milling machine with adjustable angle, includes organism (1), its characterized in that: the machine body (1) is longitudinally provided with opposite mounting plates (22), a mounting shaft (21) is rotatably connected between the two mounting plates (22), the mounting shaft (21) is fixedly connected with a rotating seat (2), and the rotating seat (2) is provided with a workbench (3);

the one end that installation axle (21) is close to the lathe is equipped with locking device (23), locking device (23) are including locking gear (232) and locking rack (233) of looks adaptation, locking gear (232) coaxial fixation is in on installation axle (21), just be located on organism (1) locking gear (232) top is equipped with and drives actuating cylinder (231), drive actuating cylinder (231) the piston rod with locking rack (233) fixed connection.

2. An angularly adjustable high precision milling machine according to claim 1, wherein: be equipped with electric drive mechanism (24) on installation axle (21), electric drive mechanism (24) are located rotate seat (2) with between locking gear (232), electric drive mechanism (24) include worm wheel (241), worm (242) and driving motor (243), driving motor (243) fixed connection in on organism (1), worm wheel (241) with installation axle (21) coaxial fixation, the output shaft of driving motor (243) with worm (242) coaxial fixation, worm (242) and worm wheel (241) intermeshing.

3. An angularly adjustable high precision milling machine according to claim 2, wherein: a longitudinal transmission seat (4) is arranged on the rotating seat (2), a transverse transmission seat (5) slides on the longitudinal transmission seat (4), a first lead screw (41) is rotatably connected to the longitudinal transmission seat (4), and the first lead screw (41) is longitudinally arranged and is in threaded connection with the transverse transmission seat (5);

workstation (3) slide in on transverse transmission seat (5), transverse transmission seat (5) female connection has second lead screw (51), second lead screw (51) along transversely set up and with the both ends of workstation (3) are rotated and are connected.

4. An angularly adjustable high precision milling machine according to claim 3, wherein: an inner gear (6) is arranged on the side face, far away from the locking gear (232), of the rotating seat (2), a first gear (61) and a second gear (62) which are meshed with each other are arranged in the inner gear (6), the second gear (62) is installed on the machine body (1) through a supporting plate (621), the second gear (62) is rotatably connected with the supporting plate (621), the second gear (62) is meshed with the inner gear (6), the first gear (61) and the inner gear (6) are coaxial, and the diameter of the first gear (61) is not smaller than that of the second gear (62);

first gear (61) coaxial fixation has dwang (63), dwang (63) with backup pad (621) rotate to be connected, dwang (63) pass backup pad (621) and are equipped with third hand wheel (631).

5. An angularly adjustable high precision milling machine according to claim 4, wherein: a first key (633) and a second key (634) sequentially slide on the rotating rod (63) along the radial direction of the rotating rod, a first groove (611) for the first key (633) to insert is formed in the first gear (61), and a second groove (65) for the second key (634) to insert is formed in the internal gear (6);

a pull rod (632) is slidably arranged in the rotating rod (63), a first connecting rod (6321) and a second connecting rod (6322) are sequentially hinged to the pull rod (632), and the first connecting rod (6321) and the second connecting rod (6322) are respectively hinged to the bottom of the first key (633) and the bottom of the second key (634);

when the first connecting rod (6321) is perpendicular to the axis of the rotating rod (63), the first key (633) is located in the first groove (611), and the second key (634) is located in the rotating rod (63);

when the second link (6322) is perpendicular to the axis of the rotating lever (63), the second key (634) is located in the second groove (65), and the first key (633) is located in the rotating lever (63).

6. An angularly adjustable high precision milling machine according to claim 5, wherein: a shifting rod (6323) is arranged at one end, away from the first gear (61), of the pull rod (632), the shifting rod (6323) penetrates through the side face of the rotating rod (63), a shifting groove (635) for the shifting rod (6323) to slide is formed in the rotating rod (63), and the shifting groove (635) is arranged along the axial direction of the rotating rod (63);

still be equipped with articulated kelly (636) on dwang (63), be equipped with in proper order on kelly (636) and supply driving lever (6323) male first draw-in groove (6361) and second draw-in groove (6362).

7. An angularly adjustable high precision milling machine according to claim 6, wherein: and a telescopic handle (6311) is connected to the third hand wheel (631).

8. An angularly adjustable high precision milling machine according to claim 7, wherein: the workbench (3) comprises an upper pressing plate (31) and a lower pressing plate (32), and a damping layer (33) is arranged between the upper pressing plate (31) and the lower pressing plate (32).