CN212217782U - Machining turntable for numerical control machining center - Google Patents

Abstract

The utility model relates to the technical field of rotary accessories for placing workpieces, in particular to a processing rotary table for a numerical control processing center, which can conveniently fix a rotary plate when the rotary plate is required to be fixed during the processing of workpieces while the rotary plate is convenient to rotate, thereby reducing the use limitation and improving the practicability; the device comprises a bottom plate, a rotating plate and a rotating shaft, wherein two groups of first limiting pieces are fixedly sleeved on the outer side of the rotating shaft, and the bottom end of the bottom plate is connected with a supporting leg group; two sets of first spacing inboard all can rotate and be fixed with first spacing universal wheelset, still include two sets of gag lever posts and two sets of first cover springs, two sets of gag lever post bottoms all are provided with the limiting plate, two sets of gag lever posts tops all are provided with the sprue, it is equipped with anticreep piece and anticreep piece down to equally divide respectively fixed cover in the first region in two sets of gag lever posts outside and the second region, rotor plate bottom annular is provided with the multiunit spacing groove, still include two sets of spacing ropes and two sets of couples, the two sets of limiting plate outsides all is connected with the semi-ring, the rotor plate bottom is connected with first support universal wheelset.

Description

Machining turntable for numerical control machining center

Technical Field

The utility model relates to a technical field of rotatory auxiliary device is placed to the work piece, especially relates to a numerical control machining center is with processing revolving stage.

Background

As is well known, a machining turntable for a numerical control machining center is an auxiliary device which is used for supporting, placing and assisting in rotating a workpiece during the working process of the numerical control machining center, so that the workpiece can be better subjected to subsequent numerical control machining, and is widely used in the field of workpiece placing and rotating; the existing machining rotary table for the numerical control machining center comprises a bottom plate, a rotary plate and a rotary shaft, wherein a first through groove is longitudinally formed in the bottom plate, the top end of the rotary shaft is connected with the center of the rotary plate, the bottom end of the rotary shaft penetrates through the first through groove and extends out to the lower part of the bottom plate, two groups of first limiting pieces are fixedly sleeved on the outer side of the rotary shaft and are respectively positioned on the upper part and the lower part of the bottom plate, and the bottom end of the bottom plate is connected with; when the existing numerical control machining center is used, the machining turntable is integrally and stably placed on a plane, a workpiece is placed on the rotating plate, the rotating plate is manually rotated to drive the workpiece to rotate, or the bottom end of the rotating shaft is arranged at the output end of an external driving mechanism to drive the rotating shaft to rotate, two groups of first limiting pieces are used for longitudinally limiting the rotating shaft, so that the rotating shaft only rotates but does not longitudinally move, and a space is reserved between the bottom plate and the placing plane as a support leg group, so that the normal rotation of the rotating shaft and the subsequent installation of the external driving mechanism are facilitated; the processing rotary table for the existing numerical control machining center is found in use, the rotary table is convenient to rotate, but the rotary table cannot be conveniently rotated for fixing when the workpiece needs to be fixed in machining, so that the use limitation is high, and the practicability is reduced.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a numerical control machining center is with processing revolving stage, when its commentaries on classics board rotates comparatively convenient, still can conveniently change the board fixed when work piece processing needs fix, and then reduce its use limitation, improve the practicality.

The utility model discloses a numerical control machining center is with processing revolving stage, including bottom plate, commentaries on classics board and pivot, vertically be provided with first logical groove on the bottom plate, the pivot top is connected with commentaries on classics board center, and the fixed cover in the pivot outside is equipped with two sets of first spacing pieces, and the bottom plate bottom is connected with the landing leg group; the inner side wall of the first through groove is rotatably fixed with a first ball group, the bottom end of the rotating shaft passes through the first ball group and extends to the lower part of the bottom plate, the inner sides of the two groups of first limiting sheets can be rotatably fixed with a first limiting universal wheel group, the two groups of first limiting universal wheel groups are respectively in close contact with the upper side and the lower side of the bottom plate, the device also comprises two groups of limiting rods and two groups of first sleeve springs, the bottom ends of the two groups of limiting rods are respectively provided with a limiting plate, the left side and the right side of the bottom plate are longitudinally provided with a second through groove, the inner sides of the two groups of second through grooves can be rotatably fixed with a second ball group, the top ends of the two groups of limiting rods respectively pass through the two groups of second ball groups and respectively extend to the upper part of the bottom plate, the top ends of the two groups of limiting rods are respectively provided with a block, the outer sides of the two groups of blocks are respectively fixedly sleeved, the bottom plate bottom is all installed on two sets of first set of spring tops, and two sets of first set of spring bottoms are connected with two sets of anti-disengaging pieces down respectively, and commentaries on classics board bottom annular is provided with the multiunit spacing groove, still includes two sets of spacing ropes and two sets of couples, and two sets of limiting plate outsides all are connected with the semi-ring, and two sets of couples are fixed in the bottom plate below through two sets of spacing ropes respectively, and two sets of couples are hooked respectively in two sets of semi-ring departments, change the board bottom and are connected with first universal wheelset that support, and first universal wheelset bottom and bottom.

The utility model discloses a numerical control machining center is with processing revolving stage, still include absorption box, sieve, air exhauster and inlet pipe, the inside absorption chamber that is provided with of absorption box, the rear side intercommunication of absorption box is provided with the maintenance mouth, and maintenance board is equipped with to the sealed bolt spiral shell in maintenance mouth department, the inlet pipe passes through air exhauster and absorption box top sealing intercommunication, inlet pipe input end sealing intercommunication has the dust cage, dust cage bottom input end is located directly over the revolving plate, the sealed intercommunication in absorption box right side below has the blast pipe, the intercommunication is provided with the screen cloth on the sieve, the sieve left and right sides all is connected with "U" type second rubber elastic layer, the bolt spiral shell is equipped with the right angle support frame in upper and lower both sides in the left side and the interior right side in the absorption box, the sieve plug-in card is between two sets of right angle support frames that are located above and two sets of right, the rear side of the sieve plate is closely contacted with the front side of the maintenance plate, the upper and lower sides of the two groups of U-shaped second rubber elastic layers are respectively closely contacted with the four groups of right-angle supporting frames, and the outer sides of the two groups of U-shaped second rubber elastic layers are respectively closely contacted with the left and right sides in the absorption box.

The utility model discloses a numerical control machining center is with processing revolving stage, still include two sets of stationary blades, second cover spring and two sets of splint, install respectively in the revolving plate top left and right sides for two sets of stationary blades, both ends are connected with being located left stationary blade and being located left splint respectively about the second cover spring, still include pull rod and arm-tie, it leads to the groove to transversely be provided with the third on the left stationary blade to be located, the rotatable third ball group that is fixed with of third inslot lateral wall, the pull rod left end is connected with the arm-tie, the pull rod right-hand member passes third ball group and stretches into to be located left stationary blade right side and be located left splint and be connected, second cover spring suit is in the pull rod.

The utility model discloses a numerical control machining center is with processing revolving stage still includes screwed pipe and threaded rod, and the stationary blade left side that is located the right side is provided with the bearing frame to rotatable ball bearing that is fixed with in the bearing frame, the right-hand member and the inside interference fit of ball bearing of screwed pipe, threaded rod right-hand member insert and spiral shell dress to screwed pipe left side inside, the threaded rod left side is connected with the splint outside that is located the right side.

The utility model discloses a numerical control machining center is with processing revolving stage, still include two sets of gears and transfer line, two sets of gears are fixed the cover respectively and are established in the screwed pipe outside and transfer line left end, two sets of gear intermeshing, transversely be provided with the fourth on the fixed plate that is located the right side and lead to the groove, the rotatable fourth ball group that is fixed with of fourth inslot lateral wall, the transfer line right-hand member passes fourth ball group and stretches out to the stationary blade right side that is located the right side, the transfer line right-hand member is connected with the handle, the fixed cover in the transfer line outside is equipped with the spacing piece of two sets of second, the spacing piece inboard of two sets of second all can be rotated and be fixed with the spacing universal wheel.

The utility model discloses a numerical control machining center is with processing revolving stage still includes locating lever and spacer, transversely is provided with the fifth logical groove on the stationary blade that is located the right side, and the rotatable fifth ball group that is fixed with of fifth logical inslot lateral wall, locating lever right-hand member are connected with the spacer, and the locating lever left end passes the fifth ball group and stretches into to be located the stationary blade left side on right side and be connected with the splint that are located the right side.

The utility model discloses a numerical control machining center is with processing revolving stage, two sets of splint bottoms all are provided with the second and support universal wheelset, and two sets of seconds support universal wheelset bottom all with changeing the board top and paste the close contact.

The utility model discloses a numerical control machining center is with processing revolving stage, the fixed cover in the inlet pipe outside is equipped with solid fixed ring, gu all be connected with stiffener group between fixed ring and the absorption box top and between air exhauster and the absorption box top.

Compared with the prior art, the beneficial effects of the utility model are that: when the rotating plate rotates, two sets of limiting rods are pulled downwards to extrude two sets of first sleeve springs, two sets of hooks are respectively hooked at two sets of semi-rings, the two sets of limiting rods do not influence the rotating plate, the rotating plate rotates normally, when the rotating plate does not need to rotate, the two sets of hooks can not hook two sets of semi-rings, at the moment, the two sets of limiting rods bounce upwards under the elastic release of the two sets of first sleeve springs, two sets of blocks on the two sets of limiting rods are respectively inserted into proper limiting grooves, so that the blocks can limit the bolt of the rotating plate, the rotating plate is fixed and can not rotate any more, when the rotating plate rotates conveniently, the rotating plate can be fixed conveniently when the workpiece needs to be fixed during processing, the use limitation of the rotating plate is reduced, the practicability is improved, the first rubber elastic layer can conveniently compensate the abrasion loss in the process of inserting and extracting the blocks, make the sprue carry out normal use, first universal wheelset of support makes things convenient for the runner to rotate and improves the supporting effect, and first ball group assists the pivot to rotate more smoothly, and second ball group assists the gag lever post to slide more smoothly, and first spacing universal wheelset makes things convenient for when first spacing piece normal use to reduce the friction, goes up anticreep piece and lower anticreep piece and conveniently carries out roughly spacingly to the longitudinal movement of gag lever post, makes it not deviate from the bottom plate.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a top view of the connection of the base plate, the rotating plate and the sets of limiting grooves;

FIG. 3 is an enlarged view of a portion A of FIG. 1;

FIG. 4 is a partial enlarged view of portion B of FIG. 1;

FIG. 5 is an enlarged view of a portion C of FIG. 1;

FIG. 6 is an enlarged view of a portion D of FIG. 1;

FIG. 7 is an enlarged view of a portion E of FIG. 1;

FIG. 8 is an enlarged view of a portion F of FIG. 1;

in the drawings, the reference numbers: 1. a base plate; 2. rotating the plate; 3. a rotating shaft; 4. a first limiting sheet; 5. a set of legs; 6. a first limit universal wheel set; 7. a limiting rod; 8. a first set of springs; 9. a limiting plate; 10. blocking; 11. a first rubber elastic layer; 12. mounting an anti-drop sheet; 13. a lower anticreep sheet; 14. a limiting groove; 15. a limiting rope; 16. hooking; 17. a half ring; 18. a first support universal wheel set; 19. an absorption box; 20. a sieve plate; 21. an exhaust fan; 22. a feed pipe; 23. a dust collection cover; 24. an exhaust pipe; 25. screening a screen; 26. a U-shaped second rubber elastic layer; 27. a right-angle support frame; 28. a fixing sheet; 29. a second set of springs; 30. a splint; 31. a pull rod; 32. pulling a plate; 33. a threaded pipe; 34. a threaded rod; 35. a gear; 36. a transmission rod; 37. a handle; 38. a second limiting sheet; 39. a second limit universal wheel set; 40. positioning a rod; 41. positioning plates; 42. a second supporting universal wheel set; 43. a fixing ring; 44. and a reinforcing rod group.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1 to 8, the utility model discloses a processing turntable for a numerical control processing center, which comprises a bottom plate 1, a rotating plate 2 and a rotating shaft 3, wherein the bottom plate 1 is longitudinally provided with a first through groove, the top end of the rotating shaft 3 is connected with the center of the rotating plate 2, two groups of first limiting pieces 4 are fixedly sleeved outside the rotating shaft 3, and the bottom end of the bottom plate 1 is connected with a supporting leg group 5; the inner side wall of the first through groove is rotatably fixed with a first ball group, the bottom end of a rotating shaft 3 passes through the first ball group and extends to the lower part of a bottom plate 1, the inner sides of two groups of first limiting sheets 4 can be rotatably fixed with first limiting universal wheel groups 6, the two groups of first limiting universal wheel groups 6 are respectively in close contact with the upper side and the lower side of the bottom plate 1, the anti-falling device also comprises two groups of limiting rods 7 and two groups of first sleeve springs 8, the bottom ends of the two groups of limiting rods 7 are respectively provided with a limiting plate 9, the left side and the right side of the bottom plate 1 are longitudinally provided with second through grooves, the inner sides of the two groups of second through grooves can be rotatably fixed with second ball groups, the top ends of the two groups of limiting rods 7 respectively pass through the two groups of second ball groups and respectively extend to the upper part of the bottom plate 1, the top ends of the two groups of limiting rods 7 are respectively provided with a blocking block 10, the outer sides of the two, the first set of springs 8 are respectively sleeved outside the two sets of limiting rods 7, the top ends of the two sets of first set of springs 8 are respectively arranged at the bottom end of the bottom plate 1, the bottom ends of the two sets of first set of springs 8 are respectively connected with the two sets of lower anti-falling sheets 13, the bottom end of the rotating plate 2 is annularly provided with a plurality of sets of limiting grooves 14, the bottom end of the rotating plate 2 is connected with a first supporting universal wheel set 18, the bottom end of the first supporting universal wheel set 18 is closely contacted with the top end of the bottom plate 1, when the rotating plate 2 rotates, the two sets of limiting rods 7 are pulled downwards to extrude the two sets of first set of springs 8, the two sets of hooks 16 are respectively hooked at the two sets of semi rings 17, the two sets of limiting rods 7 do not have any influence on the rotating plate 2, the rotating plate 2 normally rotates, when the rotating plate 2 does not need to rotate, two groups of hooks 16 can not hook two groups of semi-rings 17, at the moment, two groups of limiting rods 7 bounce upwards under the elastic release of two groups of first set springs 8, two groups of blocks 10 on the two groups of limiting rods 7 are respectively inserted into proper limiting grooves 14, so that the blocks 10 limit the bolt of the rotating plate 2, the rotating plate 2 is fixed and can not rotate any more, the rotating plate 2 can be conveniently fixed when the workpiece is processed and needs to be fixed while the rotating plate 2 rotates conveniently, the use limitation is further reduced, the practicability is improved, the first rubber elastic layer 11 is convenient to conveniently compensate the abrasion loss in the process of inserting and extracting the blocks 10, the blocks 10 are normally used, the first supporting universal wheel set 18 is convenient for rotating the rotating plate 2 and improving the supporting effect, first ball group assists pivot 3 to rotate more smoothly, and second ball group assists gag lever post 7 to slide more smoothly, and first spacing universal wheelset 6 makes things convenient for the friction reduction when first spacing 4 normal use, goes up anticreep piece 12 and lower anticreep piece 13 and conveniently carries out roughly spacingly to the longitudinal movement of gag lever post 7, makes it not deviate from bottom plate 1.

The absorption box is characterized by further comprising an absorption box 19, a sieve plate 20, an exhaust fan 21 and a feeding pipe 22, an absorption cavity is arranged inside the absorption box 19, a maintenance opening is formed in the rear side of the absorption box 19 in a communicating mode, a maintenance plate is arranged at the maintenance opening through a sealing bolt, the feeding pipe 22 is communicated with the top end of the absorption box 19 in a sealing mode through the exhaust fan 21, a dust collection cover 23 is communicated with the input end of the feeding pipe 22 in a sealing mode, the input end of the bottom of the dust collection cover 23 is located right above the rotating plate 2, an exhaust pipe 24 is communicated with the lower portion of the right side of the absorption box 19 in a sealing mode, a sieve screen 25 is communicated with the sieve plate 20, the left side and the right side of the sieve plate 20 are connected with a U-shaped second rubber elastic layer 26, right-angle support frames 27 are arranged on the upper portion, the lower portion, the upper portion, the, the rear side of the sieve plate 20 is closely contacted with the front side of the maintenance plate, the upper and lower sides of two groups of U-shaped second rubber elastic layers 26 are respectively closely contacted with four groups of right-angle supporting frames 27, the outer sides of two groups of U-shaped second rubber elastic layers 26 are respectively closely contacted with the left and right sides in the absorption box 19, the sieve plate further comprises two groups of fixing pieces 28, a second set of springs 29 and two groups of clamping plates 30, the two groups of fixing pieces 28 are respectively arranged at the left and right sides of the top end of the rotating plate 2, the left and right ends of the second set of springs 29 are respectively connected with the fixing pieces 28 at the left side and the clamping plates 30 at the left side, the sieve plate further comprises a pull rod 31 and a pull plate 32, a third through groove is transversely arranged on the fixing piece 28 at the left side, a third ball group is rotatably fixed on the inner side wall of the third through groove, the left end of the pull rod 31 is connected with, the second set of springs 29 are sleeved outside the pull rod 31, and further comprise a threaded pipe 33 and a threaded rod 34, a bearing seat is arranged on the left side of the fixing plate 28 on the right side, a ball bearing is rotatably fixed in the bearing seat, the right end of the threaded pipe 33 is in interference fit with the inside of the ball bearing, the right end of the threaded rod 34 is inserted into and screwed into the left side of the threaded pipe 33, the left side of the threaded rod 34 is connected with the outside of the clamping plate 30 on the right side, the second set of springs 35 and a transmission rod 36 are further included, the two sets of gears 35 are respectively fixedly sleeved on the outside of the threaded pipe 33 and the left end of the transmission rod 36, the two sets of gears 35 are mutually meshed, a fourth through groove is transversely arranged on the fixing plate 28 on the right side, a fourth ball set is rotatably fixed on the inner side wall of the fourth through groove, the right end of the transmission, two sets of spacing pieces 38 inboard all can be rotated and be fixed with the spacing universal wheelset 39 of second, two sets of spacing universal wheelsets 39 of second are respectively with the left and right sides of the stationary blade 28 that is located the right side pastes the tight contact, still include locating lever 40 and spacer 41, transversely be provided with the fifth logical groove on the stationary blade 28 that is located the right side, the rotatable fifth ball group that is fixed with of fifth logical inslot lateral wall, locating lever 40 right-hand member is connected with spacer 41, the locating lever 40 left end passes the fifth ball group and stretches into to be connected with the splint 30 that is located the right side to the stationary blade 28 left side that is located the right side, two sets of splint 30 bottoms all are provided with the universal wheelset 42 of second support, two sets of universal wheelset 42 bottoms of second support all paste the tight contact with rotor 2 top, the fixed cover in the inlet pipe 22 outside is equipped with solid fixed ring 43, gu fixed ring 43.

The utility model discloses a numerical control machining center is with processing revolving stage, it can be through opening air exhauster 21, processing sweeps on the bottom plate 1 is together through dust cage 23 suction to the absorption box 19 inside along with the air, processing sweeps is detained on screen cloth 25, gaseous is discharged from blast pipe 24, it can only to open maintenance plate and carry out follow-up manual cleaning to the absorption box 19 inside, air exhauster 21 is the common electrical part in the market, only need to be connected according to the instruction manual electricity of purchasing back together when buying back to use and can use, connecting wire as long as can carry out the reasonable wiring of work all can, therefore no longer give unnecessary details here, sieve 20 is convenient to carry out the dismouting from the easy to carry out follow-up maintenance of maintenance mouth pull, right angle brace 27 is spacing it, make it conveniently fix when the installation, meanwhile, "U" type second rubber elastic layer 26 is convenient to compensate the wearing and tearing loss convenience in the dismouting of sieve 20, the sieve plate 20 can be normally used by manually pulling the pulling plate 32, the pulling plate 32 drives the clamping plates 30 on the pull rod 31 to clamp and fix workpieces under the elasticity of the second set of springs 29, the use reliability is improved, the third ball group auxiliary pull rod 31 slides smoothly, the third ball group auxiliary pull rod 31 can drive the clamping plates 30 on the threaded rod 34 to move transversely by rotating the threaded pipe 33, when the workpiece has larger size difference and cannot meet the clamping and fixing requirements only through the elasticity of the second set of springs 29, the distance between the two groups of clamping plates 30 is adjusted in a larger range, the handle 37 can be manually rotated, the handle 37 drives the gear 35 on the transmission rod 36 to rotate, the two groups of gears 35 are meshed with each other to further drive the threaded pipe 33 to rotate, the threaded pipe 33 is more convenient and labor-saving to rotate, the fourth ball group auxiliary transmission rod 36 rotates smoothly, it can make when being located the splint 30 lateral shifting on right side through locating lever 40, only lateral shifting and not rotate along with threaded pipe 33 rotation, and the supplementary locating lever 40 of fifth ball group slides more smoothly, and the auxiliary locating lever 40 of spacer plate 41 does not slide out the stationary blade 28 that is located the right side, and it can make things convenient for splint 30 to slide and improve the supporting effect through the universal wheelset 42 of second support, and it can improve the installation stability of inlet pipe 22 and air exhauster 21 through stiffener group 44.

The utility model discloses a numerical control machining center is with processing revolving stage, above the mounting means, the connected mode or the mode that sets up of all parts are welding, riveting or other common mechanical system, wherein can slide/rotate fixedly for slide/not dropping under the rotation state, seal when sealed intercommunication is two connecting pieces intercommunications promptly to concrete structure, model and the coefficient index of all its parts are its from taking the technique, as long as can reach all implementing of its beneficial effect.

In the numerical control machining center of the present invention, unless otherwise stated, the terms "vertical, horizontal, front, rear, inner, and vertical, horizontal" and the like are used to indicate the orientation of the term in the normal use state, or be a trivial term understood by those skilled in the art, and should not be considered as limiting the term, at the same time, the numerical terms "first," "second," and "third," etc. do not denote any particular quantity or order, but rather are used to distinguish one from another, furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements, but also includes other elements not expressly listed or inherent to such process, method, article, or apparatus.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (8)

1. A machining rotary table for a numerical control machining center comprises a bottom plate (1), a rotary plate (2) and a rotary shaft (3), wherein a first through groove is longitudinally formed in the bottom plate (1), the top end of the rotary shaft (3) is connected with the center of the rotary plate (2), two groups of first limiting pieces (4) are fixedly sleeved on the outer side of the rotary shaft (3), and a supporting leg group (5) is connected to the bottom end of the bottom plate (1); it is characterized in that a first ball group is rotatably fixed on the inner side wall of the first through groove, the bottom end of the rotating shaft (3) passes through the first ball group and extends to the lower part of the bottom plate (1), first limiting universal wheel groups (6) can be rotatably fixed on the inner sides of two groups of first limiting sheets (4), two groups of first limiting universal wheel groups (6) are respectively attached and contacted with the upper side and the lower side of the bottom plate (1), the novel rubber ball bearing assembly also comprises two groups of limiting rods (7) and two groups of first sleeve springs (8), limiting plates (9) are respectively arranged at the bottom ends of the two groups of limiting rods (7), second through grooves are longitudinally arranged on the left side and the right side of the bottom plate (1), second ball groups can be rotatably fixed on the inner sides of the two groups of second through grooves, the top ends of the two groups of limiting rods (7) respectively pass through the two groups of second ball groups and respectively extend to the upper part of the bottom plate (1), blocking blocks (10) are respectively arranged at, the upper half area and the lower half area on the outer sides of the two groups of limiting rods (7) are respectively and fixedly sleeved with an upper anti-falling sheet (12) and a lower anti-falling sheet (13), first set springs (8) are respectively sleeved on the outer sides of the two groups of limiting rods (7), the top ends of the two groups of first set springs (8) are respectively installed at the bottom end of the bottom plate (1), the bottom ends of the two groups of first set springs (8) are respectively connected with the two groups of lower anti-falling sheets (13), a plurality of groups of limiting grooves (14) are annularly arranged at the bottom end of the rotating plate (2), the rotating plate further comprises two groups of limiting ropes (15) and two groups of hooks (16), the outer sides of the two groups of limiting plates (9) are respectively connected with half rings (17), the two groups of hooks (16) are respectively fixed below the bottom plate (1) through the two groups of limiting ropes (15), the two groups of hooks (16) are respectively hooked at the two groups of half rings (17), the bottom end of the rotating plate (2.

2. The machining turntable for the numerical control machining center according to claim 1, further comprising an absorption box (19), a sieve plate (20), an exhaust fan (21) and a feeding pipe (22), wherein an absorption cavity is arranged inside the absorption box (19), a maintenance opening is arranged on the rear side of the absorption box (19) in a communicating manner, a maintenance plate is arranged at the maintenance opening by a sealing bolt, the feeding pipe (22) is communicated with the top end of the absorption box (19) in a sealing manner through the exhaust fan (21), the input end of the feeding pipe (22) is communicated with a dust collection cover (23) in a sealing manner, the input end of the bottom of the dust collection cover (23) is positioned right above the turntable (2), an exhaust pipe (24) is communicated under the right side of the absorption box (19) in a sealing manner, a screen (25) is communicated with the sieve plate (20), U-shaped second rubber elastic layers (26) are connected to the left and right sides of the sieve plate (20), and right and upper and lower bolt supports (27, the sieve plate (20) is inserted between two groups of right angle support frames (27) positioned above and two groups of right angle support frames (27) positioned below, the front side of the sieve plate (20) is closely contacted with the inner front side of the absorption box (19), the rear side of the sieve plate (20) is closely contacted with the front side of the maintenance plate, the upper side and the lower side of two groups of U-shaped second rubber elastic layers (26) are closely contacted with the four groups of right angle support frames (27) respectively, and the outer sides of the two groups of U-shaped second rubber elastic layers (26) are closely contacted with the inner left side and the outer right side of the absorption box (19) respectively.

3. The machining turntable for a numerical control machining center according to claim 2, further comprising two sets of fixing pieces (28), second set spring (29) and two sets of splint (30), install respectively in commentaries on classics board (2) top left and right sides two sets of stationary blade (28), both ends are connected with left stationary blade (28) and the splint (30) that are located left respectively about second set spring (29), still include pull rod (31) and arm-tie (32), it is provided with the third logical groove to be located horizontal on left stationary blade (28), third logical inslot lateral wall rotatable be fixed with third ball group, pull rod (31) left end is connected with arm-tie (32), pull rod (31) right-hand member passes third ball group and stretches into to be located left stationary blade (28) right side and be located left splint (30) and be connected, second set spring (29) suit is in the pull rod (31) outside.

4. The machining turntable for the numerical control machining center according to claim 3, further comprising a threaded pipe (33) and a threaded rod (34), wherein a bearing seat is provided on the left side of the fixing piece (28) on the right side, and a ball bearing is rotatably fixed in the bearing seat, the right end of the threaded pipe (33) is in interference fit with the inside of the ball bearing, the right end of the threaded rod (34) is inserted into and screwed into the inside of the left side of the threaded pipe (33), and the left side of the threaded rod (34) is connected with the outside of the clamping plate (30) on the right side.

5. The machining turntable for the numerical control machining center according to claim 4, further comprising two sets of gears (35) and a transmission rod (36), wherein the two sets of gears (35) are fixedly sleeved on the outer side of the threaded pipe (33) and the left end of the transmission rod (36) respectively, the two sets of gears (35) are meshed with each other, a fourth through groove is transversely formed in the fixing plate (28) on the right side, a fourth ball set is rotatably fixed on the inner side wall of the fourth through groove, the right end of the transmission rod (36) penetrates through the fourth ball set and extends out to the right side of the fixing plate (28) on the right side, a handle (37) is connected to the right end of the transmission rod (36), two sets of second limiting plates (38) are fixedly sleeved on the outer side of the transmission rod (36), second limiting universal wheel sets (39) can be rotatably fixed on the inner sides of the two sets of second limiting plates (38), and the two sets of second limiting.

6. The machining turntable for the numerical control machining center according to claim 5, further comprising a positioning rod (40) and a positioning plate (41), wherein a fifth through groove is transversely formed in the fixing plate (28) on the right side, a fifth ball group is rotatably fixed to an inner side wall of the fifth through groove, the right end of the positioning rod (40) is connected with the positioning plate (41), and the left end of the positioning rod (40) penetrates through the fifth ball group and extends into the left side of the fixing plate (28) on the right side to be connected with the clamping plate (30) on the right side.

7. The machining turntable for the numerical control machining center according to claim 6, wherein the bottom ends of the two sets of clamping plates (30) are provided with second supporting universal wheel sets (42), and the bottom ends of the two sets of second supporting universal wheel sets (42) are in close contact with the top end of the rotating plate (2).

8. The numerical control machining center of claim 7 is provided with a fixing ring (43) fixed outside the feeding pipe (22), and a reinforcing rod set (44) is connected between the fixing ring (43) and the top of the absorption box (19) and between the exhaust fan (21) and the top of the absorption box (19).

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