CN211490741U

CN211490741U - Numerical control index plate

Info

Publication number: CN211490741U
Application number: CN201921984248.0U
Authority: CN
Inventors: 张子树
Original assignee: Zhongshan U Bit Precision Technology Co ltd
Current assignee: Zhongshan U Bit Precision Technology Co ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-09-15
Anticipated expiration: 2029-11-15

Abstract

The utility model relates to a precision equipment field, in particular to numerical control graduated disk. Be equipped with the gear train between servo motor and the two lead screw rods, shown two lead screw rod one end and gear train swing joint, the gear train drives two lead screw rod and rotates, but be equipped with round trip movement's adjusting device in the box and hold adjusting device's the chamber that holds, the adjusting device cover is established on the other end of two lead screw rods, adjusting device drives two lead screw rods and makes a round trip linear motion. The utility model discloses, through the worm bearing frame with hold the chamber, set up the thrust screw on my sweet bearing frame for the thrust screw contradicts to first circular slot bottom surface and forms thrust, makes the worm bearing frame remove holding the intracavity, because the worm bearing frame cover is established on the worm, thereby drives the worm and removes, has solved because live time is of a specified duration, and leads to the problem of the clearance increase between the tooth's socket on worm and the turbine.

Description

Numerical control index plate

[ technical field ] A method for producing a semiconductor device

The utility model relates to a precision equipment field, in particular to numerical control graduated disk.

[ background of the invention ]

At present, a numerical control indexing disc is a machine tool accessory which clamps a workpiece on a chuck or between two centers and enables the workpiece to rotate, index and position, and is widely applied to milling machines, drilling machines and surface grinding machines; the existing dividing plate generally comprises a motor, a worm-and-gear pair and a dividing plate, wherein the dividing plate and a worm wheel rotate simultaneously, so that the rotating angle of the worm wheel is the angle displayed by the dividing plate, the motor is in transmission connection with the worm and drives the worm to rotate clockwise or anticlockwise in work, and the worm wheel and the worm are meshed with each other, so that the worm wheel rotates according to the set degree. In the prior art, because worm wheel and worm in the middle of intermeshing, after the live time is long, can take place wearing and tearing, can adopt the mode of whole change worm wheel and worm usually, with changing behind the worm wheel and worm, need follow new debugging again, seriously influence production efficiency.

[ Utility model ] content

An object of the utility model is to prior art's defect and not enough, provide one kind and need not whole change worm gear, can adjust the numerical control graduated disk of worm gear position.

To the aforesaid problem, the utility model discloses a following technical scheme:

the numerical control dividing plate comprises a box body, wherein a double-lead screw and a double-lead worm gear are arranged in the box body and are meshed with each other, a main shaft is sleeved on the double-lead worm gear, a workbench is installed at the free end of the main shaft, a servo motor is arranged on one side of the box body, and a braking piece is arranged on the lower side of the double-lead worm gear. Be equipped with the gear train between servo motor and the two lead screw rods, shown two lead screw rod one end and gear train swing joint, the gear train drives two lead screw rod and rotates, but be equipped with round trip movement's adjusting device in the box and hold adjusting device's the chamber that holds, the adjusting device cover is established on the other end of two lead screw rods, adjusting device drives two lead screw rods and makes a round trip linear motion.

Preferably, the gear train includes driving gear and driven gear, the driving gear is connected with servo motor's pivot, the driving gear is connected with driven gear meshing, the last jack that is equipped with of driven gear, be equipped with the tooth's socket along jack circumferencial direction in the jack, one of two lead screw rods is served and is equipped with the tooth with tooth's socket assorted tooth.

Preferably, hold the chamber and include first circular slot and second circular slot, the bottom surface of first circular slot is equipped with a plurality of screw holes, the screw hole evenly sets up along first circular slot circumferencial direction.

Preferably, adjusting device includes worm bearing seat and the bearing group of setting in worm bearing seat, the bearing group cover is established in the other end of two helical pitch screw rods, be equipped with on the worm bearing seat with screw hole assorted bolt, be equipped with the thrust screw of contradicting each other with first circular slot bottom surface between two liang of adjacent bolts.

Preferably, the worm bearing seat comprises a first collar and a second collar, the first collar and the second collar are of an integrated structure, the bolt is mounted on the first collar, and the other end of the double-lead screw is inserted into the first collar.

Preferably, the other end of the double-lead screw is provided with a contact ring which is mutually butted with the bearing group.

Preferably, the bearing set includes a first needle bearing, a second needle bearing and a third needle bearing, and the third needle bearing is in contact with the ground ring.

Preferably, the other end of the double-lead screw is further provided with a locking nut, and the locking nut and the first needle bearing are mutually abutted.

Preferably, the double-lead screw is further provided with a turning needle bearing.

The utility model relates to a numerical control graduated disk's beneficial effect as follows:

the utility model discloses, through the worm bearing frame with hold the chamber, set up the thrust screw on my sweet bearing frame for the thrust screw contradicts to first circular slot bottom surface and forms thrust, makes the worm bearing frame remove holding the intracavity, because the worm bearing frame cover is established on the worm, thereby drives the worm and removes, has solved because live time is of a specified duration, and leads to the problem of the clearance increase between the tooth's socket on worm and the turbine.

The conception, the specific structure and the effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.

[ description of the drawings ]

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a cross-sectional view taken in the direction of FIG. 1-C;

FIG. 3 is a cross-sectional view taken in the direction of FIG. 9-A;

FIG. 4 is a cross-sectional view taken in the direction of FIG. 9-B;

FIG. 5 is a cross-sectional view taken in the direction of FIG. 4-D;

FIG. 6 is a schematic view of a worm bearing mount;

FIG. 7 is a cross-sectional view of the worm bearing mount;

FIG. 8 is a cross-sectional view of the case;

fig. 9 is a left side view of the present invention;

a box body 1; a double-lead screw 11; the teeth 111; the abutment ring 112; a lock nut 113; a double lead worm wheel 12; a work table 13; a servo motor 14; a brake pad 15; a gear set 2; a drive gear 21; a driven gear 22; a jack 221; a tooth slot 2211; a worm bearing housing 31; a thrust screw 32; a first collar 33; a second collar 34; a housing chamber 4; a first circular groove 41; a second circular groove 42; a threaded hole 421; a bolt 422; a first needle bearing 51; two needle bearings 52; the third needle bearing 53; and a turning type needle bearing 6.

[ detailed description ] embodiments

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art. In addition, in the description of the present invention, "a plurality" or "a plurality" means two or more unless otherwise specified.

Referring to fig. 1 to 5, fig. 1 to 5 show a preferred embodiment of the numerically controlled indexing plate:

the numerical control indexing disc comprises a box body 1, wherein a double-lead screw 11 and a double-lead worm wheel 12 are arranged in the box body 1, the double-lead screw 11 and the double-lead worm wheel 12 are meshed with each other, a main shaft is sleeved on the double-lead worm wheel 12, a workbench 13 is installed at the free end of the main shaft, a servo motor 14 is arranged on one side of the box body 1, and a brake piece 15 is arranged on the lower side of the double-lead worm wheel 12. A gear set 2 is arranged between the servo motor 14 and the double-lead screw 11, one end of the double-lead screw 11 is movably connected with the gear set 2, and the gear set 2 drives the double-lead screw 11 to rotate. In this embodiment, the gear set 2 includes a driving gear 21 and a driven gear 22, the driving gear 21 is connected with the rotating shaft of the servo motor 14, the driving gear 21 is connected with the driven gear 22 in a meshing manner, a jack 221 is arranged on the driven gear 22, a tooth slot 2211 along the circumferential direction of the jack 221 is arranged in the jack 221, and one end of the double-lead screw 11 is provided with a tooth 111 matched with the tooth slot 2211. In use, the teeth 111 are disposed at any one end of the two ends of the dual lead screw 11, the end is matched with the tooth slot 2211 in the insertion hole 221, the driving gear 21 rotates due to the engagement of the teeth 111 with the tooth slot 2211, so as to drive the dual lead screw 11 to rotate, and when the dual lead screw 11 moves, the teeth 111 move in the tooth slot 2211 along with the movement of the dual lead screw 11.

Specifically, but be equipped with adjusting device 3 and the chamber 4 that holds adjusting device 3 that round trip movement is in box 1, adjusting device 3 cover is established on the other end of two helical pitch screw rods 11, adjusting device 3 drives two lead screw rods 11 and makes the linear motion that makes a round trip. The best mode of the embodiment is as follows: the accommodating cavity 4 comprises a first circular groove 41 and a second circular groove 42, the bottom surface of the first circular groove 41 is provided with a plurality of threaded holes 421, the embodiment is provided with 6 threaded holes 421, and the threaded holes 421 are uniformly arranged along the circumferential direction of the first circular groove 41.

More specifically, the adjusting device 3 includes a worm bearing seat 31 and a bearing set disposed in the worm bearing seat 31, and the bearing set is sleeved in the other end of the dual-lead screw 11. The worm bearing seat 31 is provided with bolts 422 matched with the threaded holes 421, and thrust screws 32 which are mutually butted with the bottom surface of the first circular groove 41 are arranged between every two adjacent bolts 422. In this embodiment, the worm bearing seat 31 includes a first collar 33 and a second collar 34, the first collar 33 and the second collar 34 are an integrated structure, the bolt 422 is mounted on the first collar 33, and the other end of the dual-lead screw 11 is inserted into the second collar 34. When the worm bearing seat 31 is used, after the thrust screw 32 is adjusted, the bolt 422 is screwed, and the thrust screw 32 is abutted against the bottom surface of the first circular groove 41, so that the bolt 422 and the thrust screw 32 form self-locking force, and the worm bearing seat 31 is fixed.

More specifically, the other end of the double-lead screw 11 is provided with a contact ring which is abutted against the bearing set.

More specifically, the bearing set includes: a first needle bearing 51, a second needle bearing 52 and a third needle bearing 53, said third needle bearing 53 being in abutment with the abutment ring. The other end of the double-lead screw 11 is further provided with a locking nut 113, and the locking nut 113 and the first needle bearing 51 are mutually abutted. Since the lock nut 113 and the interference ring rotate with the rotation of the double-lead worm, the lock nut 113 and the interference ring do not rub against the worm bearing housing 31 by interfering the lock nut 113 and the first needle bearing 51 with each other and interfering the third needle bearing 53 and the interference ring with each other, thereby rotating better. Since the worm bearing seat 31 does not rotate, a second needle bearing 52 is arranged in the second collar 34, and the second needle bearing 52 is sleeved on the other end of the double-lead worm, so that the double-lead worm can rotate in the second collar 34.

The double-lead screw 11 is also provided with a turning needle bearing 6, so that the double-lead worm can rotate in the box body 1 well.

The utility model discloses a theory of operation is:

when the gap between the double-lead worm and the worm wheel is enlarged to affect the precision, if the double-lead worm is moved rightwards integrally, the bolt 422 is twisted slowly into the threaded hole 421 by twisting the bolt 422, the bolt 422 drives the worm bearing seat 31 to move rightwards integrally, and the other end of the double-lead worm is connected with the worm bearing seat 31, so that the double-lead worm moves rightwards, the gap between the double-lead worm and the worm wheel is reduced, and after the adjustment is completed, the thrust screw 32 is twisted to enable the thrust screw 32 to be mutually abutted with the bottom surface of the first circular groove 41, so that the bolt 422 and the thrust screw 32 form self-locking force, and the worm bearing seat 31 is fixed.

The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Claims

1. The utility model provides a numerical control graduated disk, includes box (1), be equipped with two lead screw rod (11) and two lead worm wheel (12) in box (1), two lead screw rod (11) and two lead worm wheel (12) intermeshing, two lead worm wheel (12) cover are equipped with the main shaft, workstation (13) are installed to the free end of main shaft, one side of box (1) is equipped with servo motor (14), two lead worm wheel (12) downside is equipped with braking piece (15), its characterized in that: be equipped with gear train (2) between servo motor (14) and two lead screw rod (11), shown two helical pitch screw rod (11) one end and gear train (2) swing joint, gear train (2) drive two lead screw rod (11) and rotate, be equipped with adjusting device (3) that can round trip movement in box (1) and hold chamber (4) that hold that holds adjusting device, the adjusting device cover is established on the other end of two lead screw rod (11), adjusting device (3) drive two helical pitch screw rod (11) and make round trip linear motion.

2. A numerically controlled indexing plate according to claim 1, wherein: gear train (2) are including driving gear (21) and driven gear (22), driving gear (21) are connected with the pivot of servo motor (14), driving gear (21) are connected with driven gear (22) meshing, be equipped with jack (221) on driven gear (22), be equipped with in jack (221) along jack (221) circumferencial direction's tooth's socket (2211), one of two helical pitch screw rods (11) is served and is equipped with tooth (111) with tooth's socket (2211) assorted.

3. A numerically controlled indexing plate according to claim 1, wherein: the accommodating cavity (4) comprises a first circular groove (41) and a second circular groove (42), a plurality of threaded holes (421) are formed in the bottom surface of the first circular groove (41), and the threaded holes (421) are evenly arranged along the circumferential direction of the first circular groove (41).

4. A numerically controlled indexing plate according to claim 3, wherein: adjusting device (3) include worm bearing seat (31) and set up the bearing group in worm bearing seat (31), the bearing group cover is established in the other end of two lead screw rod (11), be equipped with on worm bearing seat (31) with screw hole (421) assorted bolt (422), be equipped with between two liang of adjacent bolt (422) with first circular slot (41) bottom surface thrust screw (32) of contradicting each other.

5. A numerically controlled indexing plate according to claim 4, wherein: the worm bearing seat (31) comprises a first collar (33) and a second collar (34), the first collar (33) and the second collar (34) are of an integrated structure, the bolt (422) is installed on the first collar (33), and the other end of the double-lead screw (11) is inserted into the second collar (34).

6. A numerically controlled indexing plate according to claim 4, wherein: and the other end of the double-lead screw (11) is provided with a contact ring (112) which is mutually abutted against the bearing group.

7. A numerically controlled indexing plate according to claim 6, wherein: the bearing set comprises a first needle bearing (51), a second needle bearing (52) and a third needle bearing (53), and the third needle bearing (53) is abutted to the abutting ring (112).

8. A numerically controlled indexing plate according to claim 7, wherein: and the other end of the double-lead screw (11) is also provided with a locking nut (113), and the locking nut (113) is mutually abutted against the first needle bearing (51).

9. A numerically controlled indexing plate according to claim 1, wherein: and a turning needle bearing (6) is also arranged on the double-lead screw (11).