CN215200861U

CN215200861U - Assembly structure of input transmission worm and worm wheel in automatic tool changing system

Info

Publication number: CN215200861U
Application number: CN202022618143.2U
Authority: CN
Inventors: 刘金标
Original assignee: Suzhou Lianzhan Precision Electromechancial Co ltd
Current assignee: Suzhou Lianzhan Precision Electromechancial Co ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-12-17
Anticipated expiration: 2030-11-13

Abstract

The utility model discloses an assembly structure of entry drive worm and worm wheel in automatic tool changing system, it sets up with back supporting bearing through preceding supporting bearing including installing eccentric flange mount pad, both ends on casing shell worm on the eccentric flange mount pad, eccentric flange mount pad including eccentric preceding flange, with eccentric preceding flange has syntropy eccentric structure eccentric rear flange, general eccentric preceding flange with eccentric rear flange connects into a holistic intermediate junction section of thick bamboo, the section of thick bamboo wall surface of intermediate junction section of thick bamboo is seted up and is used for the breach is dodged of worm and worm wheel meshing. The utility model discloses can be simple and convenient, quick, and accurate adjust the fit-up gap of worm wheel and worm, and adjust and can ensure that worm and worm wheel axis are perpendicular after accomplishing.

Description

Assembly structure of input transmission worm and worm wheel in automatic tool changing system

[ technical field ] A method for producing a semiconductor device

The utility model relates to an automatic tool changing system device especially relates to an assembly structure of income power transmission worm and worm wheel in automatic tool changing system.

[ background of the invention ]

The automatic tool changing system of the tool magazine of the existing processing machine tool comprises the following operation steps: the actions of rotation, reciprocating lifting, sudden stop, sudden movement and the like cause great damage and abrasion to transmission parts. Therefore, in addition to strict requirements on the material, machining precision and material processing of the transmission parts, the clearance fit between the two parts is not negligible, and because the worm wheel and the rotating cam are arranged on the same axis, the rotating cam needs to be adjustable in order to achieve the optimal motion smoothness and engagement between the rotating cam and the turret, so that the worm wheel and the worm used as the main transmission are inevitably required to have an adjusting function to achieve the optimal transmission effect and the most durable mode.

The adjustment method in the prior art is to make the fixed flanges of the upper and lower adjusting worms to be eccentric to adjust the tooth meshing gap between the worm and gear, as shown in fig. 1-2, but it is necessary to adjust the upper and lower fixed flanges and make the eccentricities of the two fixed flanges consistent, so that the adjustment operation is time-consuming and difficult. In the worm gear assembly structure in the prior art, the gap between the worm and the worm wheel is adjusted by utilizing the eccentric mode of the upper flange and the lower flange of the worm, and the defects are as follows: 1) the upper fixing flange and the lower fixing flange need to be adjusted during adjustment, and the whole set of system needs to be turned over during operation, so that physical strength and time are consumed; 2) because the upper and lower adjusting flanges are separated, the two sides are difficult to adjust to achieve eccentric consistency; 3) after the adjustment is completed, the detection mode can only be to rotate the worm forward and backward to test the smoothness of the worm and the worm wheel and shake the worm forward and backward to detect the gap between the two workpieces, so that whether the worm is vertical to the worm wheel cannot be detected, and the verticality of the worm and the worm wheel directly influences the durability of the worm and the worm wheel.

Therefore, there is a need to provide a new assembly structure of a power transmission worm and a worm wheel in an automatic tool changing system to solve the above problems.

[ Utility model ] content

The utility model discloses a main aim at provides an assembly structure of income power transmission worm and worm wheel in automatic tool changing system, can be simple and convenient, quick, and the assembly clearance of accurate regulation worm wheel and worm, and it is perpendicular to ensure worm and worm wheel axis after accomplishing to adjust.

The utility model discloses a following technical scheme realizes above-mentioned purpose: the assembling structure comprises an eccentric flange mounting seat mounted on a shell, a worm with two ends arranged on the eccentric flange mounting seat through a front supporting bearing and a rear supporting bearing, wherein the two ends of the worm are arranged on the eccentric flange mounting seat, the eccentric flange mounting seat comprises an eccentric front flange, an eccentric rear flange with a homodromous eccentric structure on the eccentric front flange, an intermediate connecting cylinder which connects the eccentric front flange and the eccentric rear flange into a whole, and an avoiding notch used for meshing the worm with the worm wheel is formed in the surface of the cylinder wall of the intermediate connecting cylinder.

Further, the front support bearing is arranged in the eccentric front flange, and the rear support bearing is arranged in the eccentric rear flange.

Furthermore, the eccentric shaft of the inner hole of the eccentric front flange and the eccentric rear flange has an offset with the installation axis of the shell body, and the offset directions are consistent.

The worm gear further comprises a front bearing nut for fixing the position of the front support bearing on the worm and a rear bearing nut for fixing the position of the rear support bearing on the worm.

Furthermore, the worm is provided with an external thread structure which is respectively matched and locked with the front bearing nut and the rear bearing nut in a threaded manner.

Furthermore, the worm is also provided with a positioning convex ring for positioning one side of the front support bearing and one side of the rear support bearing respectively.

Furthermore, a tooth-shaped structure meshed with the worm wheel on the worm is arranged between the two positioning convex rings.

Furthermore, a circular ring bulge is arranged on the eccentric front flange, and one side of the circular ring bulge is attached to a step surface of the corresponding assembling hole on the shell of the machine shell to realize the axial end limit of the eccentric flange mounting seat; the assembly structure further comprises a rear fixing cover, and the rear fixing cover is fixedly connected with the outer end face of the eccentric rear flange through a screw, so that the other axial end of the eccentric flange mounting seat is limited.

Furthermore, a front oil seal and a rear oil seal are arranged on the worm, and the front oil seal is arranged at the circular ring convex position of the eccentric front flange to seal the inner hole of the eccentric front flange; the rear oil seal is arranged in the rear fixing cover to seal an inner hole of the rear fixing cover.

Compared with the prior art, the utility model discloses the beneficial effect of the assembly structure of income power transmission worm and worm wheel lies in automatic tool changing system: the eccentric fixed flange adjusted up and down is processed to be eccentric in the same direction up and down by utilizing a circular tube to form a whole, then the cylindrical eccentric flange is processed and removed at the meshing position of a worm and a worm wheel to form an avoiding gap, and the worm wheel are meshed without interference; the scheme makes the gap adjustment between the worm and the worm wheel simpler, saves time and labor, only needs one adjusting party to complete the gap adjustment and ensure the verticality of the worm and the worm wheel, and further improves the durability of the workpiece.

[ description of the drawings ]

FIG. 1 is a schematic cross-sectional view of a prior art input drive worm and worm gear assembly;

FIG. 2 is an exploded view of a prior art power drive worm and wheel assembly;

FIG. 3 is a partial sectional view of the assembly of the power transmission worm and the worm wheel in the present embodiment;

FIG. 4 is an exploded view of the present embodiment of the power transmission worm and worm gear assembly;

FIG. 5 is a schematic structural view of an eccentric flange mount in the present embodiment;

FIG. 6 is a schematic structural diagram of the worm in the present embodiment;

the figures in the drawings represent:

100, an assembly structure of an input transmission worm and a worm wheel in an automatic tool changing system;

101 a cabinet housing; 102 a worm gear; 103 assembly holes;

1' eccentric front flange; 2' eccentric rear flange; 3' a pressure regulating nut; 4, a worm; 5 front support bearings; 6' rear support bearing; 7, front oil sealing; 8, sealing the rear oil; 9' front sealing ring; 10' rear seal ring;

1, an eccentric flange mounting seat, 11 eccentric front flanges, 111 circular protrusions, 12 eccentric rear flanges, 13 intermediate connecting cylinders and 131 avoidance notches; 2, a worm, 21 an external thread structure and 22 a positioning convex ring; 3, fixing a cover; 4 front support bearing; 5, a rear support bearing; 6 front bearing nut; 7 a rear bearing nut; 8, front oil sealing; 9, oil sealing after the step; 10 front sealing ring; 14 rear gasket.

[ detailed description ] embodiments

Example (b):

referring to fig. 3-6, the present embodiment is an assembly structure 100 of an input transmission worm and a worm wheel in an automatic tool changing system, which includes an eccentric flange mounting base 1 installed on a casing 101, and a worm 2 having two ends installed on the eccentric flange mounting base 1 through a front support bearing 4 and a rear support bearing 5, wherein the eccentric flange mounting base 1 includes an eccentric front flange 11, an eccentric rear flange 12 having a same-direction eccentric structure with the eccentric front flange 11, and an intermediate connecting cylinder 13 connecting the eccentric front flange 11 and the eccentric rear flange 12 into a whole, and an avoiding notch 131 for engaging the worm 2 with the worm wheel 102 is formed on a surface of a cylinder wall of the intermediate connecting cylinder 13.

The front support bearing 4 is arranged in the eccentric front flange 11 and the rear support bearing is arranged in the eccentric rear flange 12.

The principle of implementing the adjustment of the eccentric structures of the eccentric front flange 11 and the eccentric rear flange 12 is the prior art, and the description of this embodiment is omitted.

The eccentric shafts of the inner holes of the eccentric front flange 11 and the eccentric rear flange 12 have offset amounts with the installation axis on the machine shell 101, and the offset directions are consistent, so that the rotation axis of the worm 2 after the eccentric flange installation seat 1 is adjusted can be kept perpendicular to the rotation axis of the worm wheel 102.

The embodiment further comprises a front bearing nut 6 for fixing the position of the front support bearing 4 on the worm 2, and a rear bearing nut 7 for fixing the position of the rear support bearing 5 on the worm 2. The worm 2 is provided with an external thread structure 21 which is respectively matched and locked with the front bearing nut 6 and the rear bearing nut 7 in a thread way.

The worm 2 is further provided with a positioning convex ring 22 for positioning one side of the front support bearing 4 and one side of the rear support bearing 5 respectively.

The tooth-shaped structure of the worm 2 engaged with the worm wheel 102 is arranged between the two positioning convex rings 22.

An annular bulge 111 is arranged on the eccentric front flange 11, and one side of the annular bulge 111 is attached to a step surface of the shell 101 corresponding to the assembling hole 103 to limit one axial end of the eccentric flange mounting seat 1. The embodiment further comprises a rear fixing cover 3, and the rear fixing cover 3 is in screw connection with the outer end face of the eccentric rear flange 12 to realize the axial other end limitation of the eccentric flange mounting seat 1. Thereby firmly and stably mounting the eccentric flange mounting base 1 on the cabinet housing 101.

The worm 2 is also provided with a front oil seal 8 and a rear oil seal 9, and the front oil seal 8 is arranged at the position of a circular ring bulge 111 of the eccentric front flange 11 to seal an inner hole of the eccentric front flange; the rear oil seal 9 is arranged in the rear fixing cover 3 to seal an inner hole of the rear fixing cover.

The eccentric flange mounting seat 1 is provided with a front sealing ring 10 for sealing the assembly interface of the eccentric front flange 11 and the assembly hole 103 of the machine shell 101, and a rear sealing ring 14 for sealing the assembly interface of the eccentric rear flange 12 and the assembly hole 103 of the machine shell 101.

When the meshing gap between the worm 2 and the worm wheel 102 is adjusted, only the whole eccentric flange mounting seat 1 needs to be adjusted, the eccentric front flange 11 and the eccentric rear flange 12 are synchronously adjusted along with the rotation of the whole eccentric flange mounting seat 1, so that the inner hole axis of the eccentric flange mounting seat 1 used for supporting the worm 2 is adjusted upwards or downwards, the meshing gap between the eccentric flange mounting seat and the worm wheel 102 is adjusted, the axis of the worm 2 in the adjusting process and after the adjustment is finished is always perpendicular to the worm wheel 102, the transmission assembly precision of the worm wheel and the worm is guaranteed, the transmission effectiveness of the worm wheel and the worm is guaranteed, and the service life is prolonged.

The assembly structure 100 of the input transmission worm and the worm wheel in the automatic tool changing system of the embodiment is that an eccentric fixed flange which is adjusted up and down is processed by a circular tube to be eccentric in the same direction up and down, so that the eccentric fixed flange is changed into a whole, then a cylindrical eccentric flange is processed and removed at the meshing position of the worm and the worm wheel to form an avoiding gap, and the worm wheel are meshed without interference; the scheme makes the gap adjustment between the worm and the worm wheel simpler, saves time and labor, only needs one adjusting party to complete the gap adjustment and ensure the verticality of the worm and the worm wheel, and further improves the durability of the workpiece.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. The utility model provides an assembly structure of power transmission worm and worm wheel in automatic tool changing system which characterized in that: the worm gear connecting device comprises an eccentric flange mounting seat mounted on a shell, a worm with two ends arranged on the eccentric flange mounting seat through a front supporting bearing and a rear supporting bearing, wherein the eccentric flange mounting seat comprises an eccentric front flange, an eccentric rear flange with a homodromous eccentric structure with the eccentric front flange, and an intermediate connecting cylinder which connects the eccentric front flange and the eccentric rear flange into a whole, and an avoiding notch used for meshing the worm and the worm wheel is formed in the surface of the cylinder wall of the intermediate connecting cylinder.

2. The automatic tool changing system as claimed in claim 1, wherein the fitting structure of the power transmission worm and the worm wheel comprises: the front support bearing is arranged in the eccentric front flange, and the rear support bearing is arranged in the eccentric rear flange.

3. The automatic tool changing system as claimed in claim 1, wherein the fitting structure of the power transmission worm and the worm wheel comprises: and the eccentric shaft of the inner hole of the eccentric front flange and the eccentric rear flange has offset with the installation axis on the shell body, and the offset directions are consistent.

4. The automatic tool changing system as claimed in claim 1, wherein the fitting structure of the power transmission worm and the worm wheel comprises: the worm gear further comprises a front bearing nut for fixing the position of the front support bearing on the worm and a rear bearing nut for fixing the position of the rear support bearing on the worm.

5. The automatic tool changing system as claimed in claim 4, wherein the fitting structure of the power transmission worm and the worm wheel comprises: and the worm is provided with an external thread structure which is matched and locked with the front bearing nut and the rear bearing nut in a threaded manner respectively.

6. The automatic tool changing system as claimed in claim 1, wherein the fitting structure of the power transmission worm and the worm wheel comprises: and the worm is also provided with a positioning convex ring for positioning one side of the front support bearing and one side of the rear support bearing respectively.

7. The automatic tool changing system as claimed in claim 6, wherein the fitting structure of the power transmission worm and the worm wheel comprises: and a tooth-shaped structure meshed with the worm wheel on the worm is arranged between the two positioning convex rings.

8. The automatic tool changing system as claimed in claim 1, wherein the fitting structure of the power transmission worm and the worm wheel comprises: a circular ring bulge is arranged on the eccentric front flange, and one side of the circular ring bulge is attached to the step surface of the corresponding assembling hole on the shell body of the machine shell to realize the axial end limit of the eccentric flange mounting seat; the assembly structure further comprises a rear fixing cover, and the rear fixing cover is fixedly connected with the outer end face of the eccentric rear flange through a screw, so that the other axial end of the eccentric flange mounting seat is limited.

9. The automatic tool changing system as claimed in claim 8, wherein the fitting structure of the power transmission worm and the worm wheel comprises: the worm is also provided with a front oil seal and a rear oil seal, and the front oil seal is arranged at the circular ring convex position of the eccentric front flange to seal the inner hole of the eccentric front flange; the rear oil seal is arranged in the rear fixing cover to seal an inner hole of the rear fixing cover.