CN219093875U

CN219093875U - Gear hobbing frock of harmonic reducer flexbile gear

Info

Publication number: CN219093875U
Application number: CN202223117141.0U
Authority: CN
Inventors: 陈勰; 陈伟南; 黄华军; 胡升平
Original assignee: Demei Precision Transmission Shenzhen Co ltd
Current assignee: Demei Precision Transmission Shenzhen Co ltd
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-05-30
Anticipated expiration: 2032-11-23

Abstract

The utility model belongs to the technical field of flexible gear machining, in particular to a gear hobbing tool for a flexible gear of a harmonic reducer, which comprises a support frame with an L-shaped vertical section, wherein a motor a is rotationally connected in a notch at the top end of the support frame through two connecting shafts, an output shaft of the motor a is fixedly connected with a rotary table, and a limiting ring is movably sleeved on the outer side of the rotary table. Compared with the prior art, the utility model is different from the prior art, the supporting mechanism is utilized, the supporting plates are enabled to have longer outward supporting stroke by starting the motor b and matching with the functions of a plurality of components, so that the harmonic reducer flexible gear with larger deviation can be rapidly positioned and installed, the application range of the gear hobbing tool is greatly improved, the angle of the positioned harmonic reducer flexible gear is adjustable by loosening two hand screw bolts and matching with the function of an arc rod combined with a limiting sleeve block, and the angle of the harmonic reducer flexible gear can be conveniently adjusted and used by locking the two hand screw bolts after adjustment, and the application range is wide.

Description

Gear hobbing frock of harmonic reducer flexbile gear

Technical Field

The utility model relates to the technical field of flexible gear machining, in particular to a gear hobbing tool for a flexible gear of a harmonic reducer.

Background

The flexspline is a key element of harmonic transmission, and the advantages and disadvantages of the dynamic performance of the flexspline determine the performance of the system to a great extent. The flexible gear belongs to a thin-wall part, and is acted by reciprocating stress in the transmission process, so that the processing technology of the flexible gear is very strict. In the normal processing process, a mandrel is matched with each flexible gear, the mandrel penetrates into an inner hole of the flexible gear through interference fit, and then the outer circle of the flexible gear and the hobbing are processed.

The Chinese patent document with the publication number of CN209773648U specifically discloses a hydraulic expansion tool installed on a gear hobbing machine, wherein the front part of the hydraulic expansion tool is provided with an expansion part, a harmonic speed reducer flexible gear is sleeved on the expansion part, hydraulic oil is introduced into the hydraulic expansion tool to enable the expansion part to expand the harmonic speed reducer flexible gear, a gear hobbing cutter is arranged above the harmonic speed reducer flexible gear, and the gear hobbing part of the gear hobbing cutter is positioned above the harmonic speed reducer flexible gear and is used for hobbing.

The gear hobbing frock of above-mentioned harmonic reducer flexspline, though can realize carrying out the effect of quick inflation fixed location to harmonic reducer flexspline, but adopt the inflation locate mode to lead to the flexspline size limitation of location great easily, inflation location stroke is shorter, can only be applicable to the flexspline that the size deviation is little and fix a position, and then can't fix a position to the flexspline of equidimension and great deviation size, secondly, the angle of flexspline after the location is inconvenient to be adjusted, leads to processing application range limited, for this reason, we propose a gear hobbing frock of harmonic reducer flexspline.

Disclosure of Invention

The utility model aims to provide a gear hobbing tool for a flexible gear of a harmonic reducer, so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a gear hobbing frock of harmonic reducer flexbile gear, includes the support frame that the vertical cross-section is L shape, be connected with motor a through two connecting axle rotations in the top notch of support frame, motor a's output shaft rigid coupling has the carousel, the outside movable sleeve of carousel is equipped with the spacing ring, the spacing ring is close to be fixed with the L shape support that two symmetries set up on motor a's the lateral wall, the one end that two L shape supports are close to each other is all fixed in motor a's the outside, install harmonic reducer flexbile gear through supporting the mechanism on the carousel, the one end that two connecting axles deviate from mutually all extends to the outside of support frame and is connected with angle adjustment mechanism between with the support frame.

Preferably, the propping mechanism comprises a gear ring which is slidably connected with an annular chute on one side wall of the turntable, which is away from the motor a, wherein both ends of the vertical section of the gear ring are in an inverted T-shaped structure, the gear ring is provided with a plurality of inner teeth, and the shape of the gear ring is shown in the attached figure 4.

Preferably, the inside meshing of ring gear is connected with a plurality of gears a that are annular array and arrange, gear a all rotates through the pivot and connects on the carousel, gear a's one side still all is equipped with rigid coupling in the gear b in the pivot outside, one of them pivot one end extends to the back lateral wall of carousel and links to each other with motor b's output shaft, motor b fixes on the back lateral wall of carousel, motor b drives the pivot and rotates, then make gear a transmit and rotate in the ring gear, and cooperate the effect of ring gear and a plurality of gears a meshing, and then make a plurality of pivots syntropy rotate, and drive the gear b rotation that all connects, gear b all carries out the transmission to the L shape pinion rack of meshing, then make the support board that L shape pinion rack all connects outwards prop up, and then can prop up the location to the inboard of flexbile gear.

Preferably, the outer sides of the gears b are respectively connected with an L-shaped toothed plate in a meshed mode, one ends of the L-shaped toothed plates are respectively connected to the turntable in a sliding mode through sliding blocks with inverted T-shaped structures in vertical sections, the other ends of the L-shaped toothed plates are respectively fixedly connected with supporting plates, and sliding grooves matched with the sliding blocks are respectively formed in one side wall of the turntable.

Preferably, the angle adjusting mechanism comprises an arc rod fixedly connected to the outer side of the rotating shaft, an arc sleeve block is movably sleeved on the outer side of the arc rod, and the arc rod consists of a straight rod and a semicircular rod.

Preferably, one end of the arc sleeve block is fixed on the outer side of the support frame, the other end of the arc sleeve block is spirally connected with a hand screw, one end of the hand screw locked by the hand screw is abutted against the outer side of the arc rod, the arc rod can move on the inner side of the arc sleeve block by loosening the hand screw, and then the purpose of conveniently adjusting the angle of the flexible gear after positioning is driven, so that the angle of the flexible gear can be conveniently switched during hobbing.

Compared with the prior art, the utility model has the beneficial effects that:

compared with the prior art, the utility model is different from the prior art, the supporting mechanism is utilized, the supporting plates are enabled to have longer outward supporting stroke by starting the motor b and matching with the functions of a plurality of components, so that the harmonic reducer flexible gear with larger deviation can be rapidly positioned and installed, the application range of the gear hobbing tool is greatly improved, the angle of the positioned harmonic reducer flexible gear is adjustable by loosening two hand screw bolts and matching with the function of an arc rod combined with a limiting sleeve block, and the angle of the harmonic reducer flexible gear can be conveniently adjusted and used by locking the two hand screw bolts after adjustment, and the application range is wide.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the front side view of the present utility model;

FIG. 3 is a schematic view of the expanding structure of the stop collar and the turntable thereof according to the present utility model;

FIG. 4 is a schematic view of the structure of the ring gear of the present utility model after being unfolded;

FIG. 5 is an enlarged schematic view of the structure of the present utility model at A;

fig. 6 is an enlarged schematic view of the structure of the present utility model at B.

In the figure: 1. a support frame; 2. a motor a; 21. a connecting shaft; 3. a turntable; 31. a limiting ring; 32. an L-shaped bracket; 4. a propping mechanism; 401. a motor b; 402. a rotating shaft; 403. a gear a; 404. a gear b; 405. an L-shaped toothed plate; 406. a slide block; 407. a gear ring; 408. supporting plates; 5. an angle adjusting mechanism; 501. an arc-shaped rod; 502. arc sleeve blocks; 503. and screwing the screw by hand.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, the present utility model provides a technical solution: the utility model provides a gear hobbing frock of harmonic reducer flexspline, including the support frame 1 that the vertical cross-section is L shape, be connected with motor a2 through two connecting axle 21 rotations in the top notch of support frame 1, motor a 2's output shaft rigid coupling has carousel 3, carousel 3's outside movable sleeve is equipped with spacing ring 31, spacing ring 31 is fixed with the L shape support 32 that two symmetries set up on being close to a lateral wall of motor a2, the one end that two L shape supports 32 are close to each other is all fixed in motor a 2's outside, carousel 3 establishes in the outside of spacing ring 31 through the annular groove cover that the outside was seted up for carousel 3 is more stable when rotating.

The rotary table 3 is provided with a harmonic reducer flexible gear through a propping mechanism 4, the propping mechanism 4 comprises a gear ring 407 which is connected in a sliding way on an annular chute on one side wall of the rotary table 3, which is far away from a motor a2, both ends of the vertical section of the gear ring 407 are in an inverted T-shaped structure, the gear ring 407 is provided with a plurality of internal teeth, the shape of the gear ring 407 is shown in figure 4, the inner side of the gear ring 407 is connected with a plurality of gears a403 which are arranged in an annular array in a meshed way, the gears a403 are connected on the rotary table 3 in a rotating way through rotating shafts 402, one side of each gear a403 is also provided with a gear b404 fixedly connected on the outer side of the rotating shaft 402, one end of one rotating shaft 402 extends to the rear side wall of the rotary table 3 and is connected with an output shaft of the motor b401, the motor b401 is fixed on the rear side wall of the rotary table 3, the motor b401 drives the rotating shaft 402 to rotate, so that the gear a403 drives the gear ring 407 to rotate, and is matched with the meshing effect of the gear ring 407 and the plurality of gears a403, so that the plurality of rotating shafts 402 rotate in the same direction, and the gear b404 connected with the gear ring is driven to rotate, the gear b404 drives the meshed L-shaped toothed plate 405, the supporting plate 408 connected with the L-shaped toothed plate 405 can be outwards opened, the inner side of the flexible gear can be further supported and positioned, the outer side of the gear b404 is connected with the L-shaped toothed plate 405 in a meshed mode, one end of the L-shaped toothed plate 405 is connected onto the turntable 3 in a sliding mode through a sliding block 406 with an inverted T-shaped structure in a vertical section fixedly connected with the sliding block, the other end of the L-shaped toothed plate is fixedly connected with the supporting plate 408, and a sliding groove matched with the sliding block 406 is formed in one side wall of the turntable 3.

The one end that two connecting axles 21 deviate from all extends to the outside of support frame 1 and is connected with angle adjustment mechanism 5 between with support frame 1, angle adjustment mechanism 5 includes the arc pole 501 of rigid coupling in the pivot 402 outside, the outside movable sleeve of arc pole 501 is equipped with arc cover piece 502, arc pole 501 comprises a straight-bar and a semicircle pole, the one end of arc cover piece 502 is fixed in the outside of support frame 1, the other end screwed connection has hand screw 503, the one end after the locking of hand screw 503 all supports the outside at arc pole 501, through loosening hand screw 503, then make arc pole 501 can be in the inboard activity of arc cover piece 502, and then drive the purpose that the angle of conveniently carrying out the regulation to the flexbile gear after the location, make when the hobbing, can conveniently switch the angle of flexbile gear.

According to the scheme, when the gear hobbing tool for the harmonic reducer flexible gear is used, the harmonic reducer flexible gear is sleeved on the outer sides of the supporting plates 408, the driving rotating shaft 402 is enabled to rotate through the starting motor b401, the gear a403 is enabled to rotate on the gear ring 407, the gear b404 is enabled to rotate in the same direction through the meshing effect of the gear ring 407 and the gears a403, the gears b404 are enabled to rotate, the gears b404 are all connected to the meshed L-shaped toothed plates 405, the supporting plates 408 which are all connected to the L-shaped toothed plates 405 can be outwards unfolded, the inner sides of the flexible gears can be supported and positioned, the harmonic reducer flexible gear with larger deviation can be rapidly positioned and installed, the application range of the gear hobbing tool is greatly improved, and then the angle of the flexible gear after positioning can be switched through loosening of two hand screws 503 and the action of the arc rod 501 and the arc sleeve blocks 502.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, 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 may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a gear hobbing frock of harmonic reducer flexbile gear, includes support frame (1) that vertical section is L shape, its characterized in that: the novel electric motor is characterized in that a motor a (2) is rotationally connected in a top end notch of the supporting frame (1) through two connecting shafts (21), a rotary table (3) is fixedly connected to an output shaft of the motor a (2), a limiting ring (31) is movably sleeved on the outer side of the rotary table (3), two symmetrically arranged L-shaped supports (32) are fixed on one side wall of the limiting ring (31) close to the motor a (2), one ends of the two L-shaped supports (32) close to each other are fixed on the outer side of the motor a (2), a harmonic reducer flexible wheel is mounted on the rotary table (3) through a supporting mechanism (4), and one ends of the two connecting shafts (21) deviating from each other are all extended to the outer side of the supporting frame (1) and are connected with an angle adjusting mechanism (5) between the supporting frame (1).

2. The gear hobbing tool for the harmonic reducer flexspline according to claim 1, wherein: the supporting mechanism (4) comprises a gear ring (407) which is slidably connected on a side wall of the turntable (3) deviating from the motor a (2) in an annular sliding groove, and two ends of the vertical section of the gear ring (407) are of an inverted T-shaped structure.

3. The gear hobbing tool for the harmonic reducer flexspline according to claim 2, wherein: the inside meshing of ring gear (407) is connected with a plurality of gears a (403) that are annular array and arrange, and gear a (403) all rotates through pivot (402) and connects on carousel (3), and one side of gear a (403) still all is equipped with rigid coupling in gear b (404) in pivot (402) outside, and one of them pivot (402) one end extends to the back lateral wall of carousel (3) and links to each other with the output shaft of motor b (401), and motor b (401) are fixed on the back lateral wall of carousel (3).

4. The gear hobbing tool for the harmonic reducer flexspline according to claim 3, wherein: the outside of gear b (404) all meshes and is connected with L shape pinion rack (405), and slider (406) sliding connection that the vertical cross-section of L shape pinion rack (405) all through the rigid coupling is the structure of inversion T shape is on carousel (3), and another one end all rigid coupling has support board (408), all sets up on a side wall of carousel (3) with slider (406) matched with spout.

5. The gear hobbing tool for the harmonic reducer flexspline according to claim 1, wherein: the angle adjusting mechanism (5) comprises an arc-shaped rod (501) fixedly connected to the outer side of the rotating shaft (402), and an arc-shaped sleeve block (502) is movably sleeved on the outer side of the arc-shaped rod (501).

6. The gear hobbing tool for the harmonic reducer flexspline according to claim 5, wherein: one end of the arc sleeve block (502) is fixed on the outer side of the supporting frame (1), the other end of the arc sleeve block is connected with a hand screw (503) in a screwed mode, and one end of the hand screw (503) after being locked is abutted to the outer side of the arc rod (501).