CN108481195B

CN108481195B - Gear fixing device

Info

Publication number: CN108481195B
Application number: CN201810275365.3A
Authority: CN
Inventors: 王芳
Original assignee: Chongqing Shenjian Auto Transmission Co ltd
Current assignee: Double Ring Drive Chongqing Precision Technology Co ltd
Priority date: 2018-03-30
Filing date: 2018-03-30
Publication date: 2023-10-17
Anticipated expiration: 2038-03-30
Also published as: CN108481195A

Abstract

The application provides a gear fixing device, which comprises a round chuck and a clamping piece for fixing a gear, wherein the round chuck is provided with a plurality of clamping grooves; one side of the chuck is provided with a groove along the diameter, and the other side of the chuck is provided with a central shaft; the clamping piece comprises a gear shaft, a sleeve and an expanding member; one end of the gear shaft is provided with a boss, and the other end of the gear shaft is slidably arranged in the groove; the gear shaft is detachably connected with the chuck; the boss is provided with a plurality of through grooves along the circumferential direction; the expansion member is slidably arranged in the through groove; the sleeve is sleeved on the gear shaft in an sleeved mode, and the sleeve is connected with the expansion component through end face threads. According to the gear fixing device, when the gears are clamped, the gear teeth of the gears are not contacted, the gears are prevented from being scratched, and the gear processing quality is improved.

Description

Gear fixing device

Technical Field

The application relates to the technical field of gear machining, in particular to a gear fixing device.

Background

The gear transmission is a common transmission mode in life of people, the application is very wide, the use condition of some gears is extremely bad, the gears are required to run under the conditions of continuous impact force, vibration and overload, and the service life is required to be more than 15 years, so that the reliability of the gears is required to be higher, and the higher requirements are also provided for the polishing processing of the gears.

Gear teeth and inner holes are usually machined on the gears, and gear polishing mainly comprises polishing of gear end faces and gear teeth. When the gear is polished, the gear needs to be fixed. When polishing gear terminal surface, often be with the direct clamping of gear on polishing workstation, rotatory polishing workstation accomplishes the polishing of gear, during the clamping, anchor clamps direct with the teeth of a cogwheel contact of gear, cause the teeth of a cogwheel to scratch easily, influence gear processingquality and application.

Disclosure of Invention

Aiming at the defects in the prior art, the gear fixing device provided by the application does not contact with gear teeth of the gear when the gear is clamped, so that the gear is prevented from being scratched, and the gear processing quality is improved.

The application provides a gear fixing device, which comprises a round chuck and a clamping piece for fixing a gear, wherein the round chuck is provided with a plurality of clamping grooves; one side of the chuck is provided with a groove along the diameter, and the other side of the chuck is provided with a central shaft;

the clamping piece comprises a gear shaft, a sleeve and an expanding member; one end of the gear shaft is provided with a boss, and the other end of the gear shaft is slidably arranged in the groove; the gear shaft is detachably connected with the chuck; the boss is provided with a plurality of through grooves along the circumferential direction; the expansion member is slidably arranged in the through groove; the sleeve is sleeved on the gear shaft in an sleeved mode, and the sleeve is connected with the expansion component through end face threads.

Optionally, two fixing screws are also included; the groove is T-shaped; fastening grooves communicated with the grooves are formed in two sides of the grooves; the gear shaft is T-shaped; the vertical part of the gear shaft is slidably arranged in the groove; the two fixing screws respectively penetrate through the two fastening grooves to be abutted against the vertical part of the gear shaft.

Optionally, a drive plate and a plurality of jaws; a cavity is arranged in the chuck; a plurality of positioning grooves communicated with the cavity are formed in the chuck along the circumferential direction; the clamping jaw is slidably arranged in the positioning groove; the driving disc is rotatably arranged in the cavity; an end face thread is processed on the end face of the driving disc; the clamping jaw is in threaded connection with the driving disc.

Optionally, the claw comprises a slider, an elastic piece and an L-shaped claw body; the sliding block is positioned in the cavity and is in threaded connection with the driving disk; the vertical part of the claw body is slidably arranged in the positioning groove, and the horizontal part of the claw body is inserted into the cavity and connected with the sliding block; the claw body can slide on the sliding block along the horizontal direction; the clamping jaw body is in wedge-shaped connection with the chuck; and two ends of the elastic piece are respectively connected with the claw body and the sliding block.

Optionally, the elastic element is a tension spring.

According to the technical scheme, the beneficial effects of the application are as follows: the application provides a gear fixing device, which comprises a round chuck and a clamping piece for fixing a gear, wherein the round chuck is provided with a plurality of clamping grooves; one side of the chuck is provided with a groove along the diameter, and the other side of the chuck is provided with a central shaft; the clamping piece comprises a gear shaft, a sleeve and an expanding member; one end of the gear shaft is provided with a boss, and the other end of the gear shaft is slidably arranged in the groove; the gear shaft is detachably connected with the chuck; the boss is provided with a plurality of through grooves along the circumferential direction; the expansion member is slidably arranged in the through groove; the sleeve is sleeved on the gear shaft in an sleeved mode, and the sleeve is connected with the expansion component through end face threads. According to the gear fixing device, when the gears are clamped, the gear teeth of the gears are not contacted, the gears are prevented from being scratched, and the gear processing quality is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.

FIG. 1 is a schematic diagram of the structure of the present application;

FIG. 2 is a right side view of FIG. 1;

fig. 3 is a schematic structural view of the chuck.

Reference numerals:

1-chuck, 2-clamping piece, 3-set screw, 4-driving disk, 5-jack catch, 11-slot, 12-center pin, 13-fastening groove, 14-cavity, 15-constant head tank, 21-gear shaft, 22-sleeve, 23-expansion component, 51-slider, 52-elastic piece, 53-jack catch body, 211-boss.

Detailed Description

Embodiments of the technical scheme of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present application, and thus are merely examples, and are not intended to limit the scope of the present application.

It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 1 are merely for convenience in describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application. Furthermore, in the description of the present application, the meaning of "plurality" is two or more unless explicitly defined otherwise.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Referring to fig. 1-3, the gear fixing device provided in this embodiment includes a circular chuck 1 and a clamping member 2 for fixing a gear; a groove 11 is formed in one side of the chuck 1 along the diameter, and a central shaft 12 is arranged on the other side of the chuck; the clamping piece 2 comprises a gear shaft 21, a sleeve 22 and an expanding member 23; one end of the gear shaft 21 is provided with a boss 211, and the other end of the gear shaft is slidably arranged in the groove 11; the gear shaft 21 is detachably connected with the chuck 1; the boss 211 is provided with a plurality of through grooves along the circumferential direction; the expansion member 23 is slidably mounted in the through slot; the sleeve 22 is sleeved on the gear shaft 21, and the sleeve 22 is in threaded connection with the expansion member 23 through end surface threads. When the spur gear is polished, the gear shaft 21 is fixed to the center of the chuck 1, and the chuck 1 is fixed to the polishing table through the center shaft 12. The gear shaft 21 is inserted into the inner hole of the spur gear, the sleeve 22 is rotated, the expansion member 23 slides radially outwards, abuts against the inner peripheral surface of the spur gear, and the spur gear is fixed. And (3) rotating the polishing workbench to finish polishing the gear end face and the gear teeth of the gear. However, when the eccentric gear needs to be polished, the gear shaft 21 is inserted into the inner hole of the eccentric gear, the sleeve 22 is rotated, and the eccentric gear is fastened. And the gear shaft 21 is slid, the position of the center of the eccentric gear is adjusted, after the central axis of the eccentric gear is collinear with the central axis of the chuck 1, the gear shaft 21 is fixed in the groove 11, and the polishing workbench is rotated to finish polishing of gear end faces and gear teeth of the gear. The gear fixing device that this embodiment provided, when clamping the gear, the teeth of a cogwheel of contactless gear prevent the fish tail gear, improve the quality of gear processing, be convenient for adjust the position of gear, be convenient for polish eccentric gear.

As a further improvement to the above technical solution, two fixing screws 3 are also included; the groove 11 is T-shaped; both sides of the groove 11 are provided with fastening grooves 13 communicated with the groove 11; the gear shaft 21 is T-shaped; the vertical portion of the gear shaft 21 is slidably mounted in the groove 11; the two fixing screws 3 respectively pass through the two fastening grooves 13 to be abutted against the vertical portions of the gear shaft 21. In the initial state, the fixing screw 3 fixes the gear shaft 21 in the groove 11, when the gear position needs to be adjusted, the fixing screw 3 is unscrewed, the gear shaft 21 is slid, and after the adjustment is completed. The fixing screw 3 is screwed to fix the gear shaft 21. Simple structure, the fixed gear axle 21 of being convenient for, the maintenance of being convenient for.

As a further improvement to the above solution, a drive disk 4 and a plurality of claws 5 are also included; a cavity 14 is arranged in the chuck 1; a plurality of positioning grooves 15 communicated with the cavity 14 are formed in the chuck 1 along the circumferential direction; the clamping jaw 5 is slidably arranged in the positioning groove 15; the drive disk 4 is rotatably mounted in the cavity 14; an end face thread is processed on the end face of the driving disc 4; the claw 5 is in threaded connection with the drive disk 4. The gear shaft 21 is rotatable around the central axis of the gear shaft 21 within the groove 11. In the initial state, the jaws 5 are positioned at the outer edge of the chuck 1, and the gear shaft 21 slides along the groove 11. The gears are fixed to the gear shaft 21 with the centers of the gears aligned with the grooves. The drive disc 4 is rotated and the jaws 5 slide radially inwards under the influence of the drive disc 4. When one of the claws 5 contacts with the gear, the claw in contact with the gear pushes the gear to slide along the groove, and the gear drives the gear shaft 21 to slide in the groove 11. When all the jaws 5 are in contact with the gear, the central axis of the gear is now collinear with the central axis of the chuck 1. The gear shaft 21 is fixed in the groove 11, preventing rotation and sliding of the gear shaft 21. After the gear shaft 21 is fixed, the driving disk 4 is reversely rotated, so that the claws 5 slide radially outward and the original state is restored. The central axis of the gear is convenient to be positioned.

As a further improvement to the above-described technical solution, the claw 5 includes a slider 51, an elastic member 52, and an L-shaped claw body 53; the slide block 51 is positioned in the cavity 14 and is in threaded connection with the drive disk 4; the vertical part of the claw body 53 is slidably arranged in the positioning groove 15, and the horizontal part is inserted into the cavity 14 to be connected with the sliding block 51; the jaw body 53 is slidable on the slider 51 in the horizontal direction; the jaw body 53 is in wedge-shaped connection with the chuck 1; both ends of the elastic member 52 are respectively connected with the jaw body 53 and the slider 51. The groove 11 penetrates the chuck 1 in the diameter direction of the chuck 1. In the initial state, the claw body 53 is received in the positioning groove 15. When the position of the gear needs to be adjusted. The driving disk 4 is rotated, and the slider 51 drives the claw body 53 to slide inward in the radial direction under the action of the driving disk 4. The jaw body 53 is extruded by the chuck 1, slides along the horizontal direction, extends out of the positioning groove 15, clamps the gear, and completes positioning of the gear. After the positioning is completed, the disk 4 is reversely rotated, and the claw body 53 slides outwards along the radial direction under the drive of the sliding block 51, so that the initial state is restored. The interference of the claw body 53 to the grinding work is reduced when the gears are ground. When it is necessary to clamp the ring gear, the gear shaft 21 is removed. The driving disk 4 is rotated, and the claw bodies 53 extend out of the positioning grooves 15 to clamp the gear ring. The clamping of the gear ring is facilitated.

As a further improvement to the above-described technical solution, the elastic member 52 is a tension spring. Simple structure, convenient maintenance.

In the description of the present application, numerous specific details are set forth. However, it is understood that embodiments of the application may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application, and are intended to be included within the scope of the appended claims and description.

Claims

1. A gear fixing device, characterized in that: comprises a circular chuck (1) and a clamping piece (2) for fixing a gear; one side of the chuck (1) is provided with a groove (11) along the diameter, and the other side is provided with a central shaft (12);

the clamping piece (2) comprises a gear shaft (21), a sleeve (22) and an expanding component (23); one end of the gear shaft (21) is provided with a boss (211), and the other end of the gear shaft is slidably arranged in the groove (11); the gear shaft (21) is detachably connected with the chuck (1); the boss (211) is provided with a plurality of through grooves along the circumferential direction; the expansion member (23) is slidably arranged in the through groove; the sleeve (22) is sleeved on the gear shaft (21), and the sleeve (22) is in threaded connection with the expansion member (23) through end surface threads;

the device also comprises a driving disc (4) and a plurality of clamping claws (5); a cavity (14) is arranged in the chuck (1); a plurality of positioning grooves (15) communicated with the cavity (14) are formed in the chuck (1) along the circumferential direction; the clamping jaw (5) is slidably arranged in the positioning groove (15); the driving disc (4) is rotatably arranged in the cavity (14); an end face thread is processed on the end face of the driving disc (4); the clamping jaw (5) is in threaded connection with the driving disc (4);

also comprises two fixing screws (3); the groove (11) is T-shaped; both sides of the groove (11) are provided with fastening grooves (13) communicated with the groove (11); the gear shaft (21) is T-shaped; the vertical part of the gear shaft (21) is slidably arranged in the groove (11); the two fixing screws (3) respectively penetrate through the two fastening grooves (13) to be abutted against the vertical part of the gear shaft (21);

the claw (5) comprises a sliding block (51), an elastic piece (52) and an L-shaped claw body (53); the sliding block (51) is positioned in the cavity (14) and is in threaded connection with the driving disk (4); the vertical part of the claw body (53) is slidably arranged in the positioning groove (15), and the horizontal part of the claw body is inserted into the cavity (14) to be connected with the sliding block (51); the claw body (53) can slide on the sliding block (51) along the horizontal direction; the claw body (53) is in wedge-shaped connection with the chuck (1); both ends of the elastic piece (52) are respectively connected with the claw body (53) and the sliding block (51).

2. The gear fixing device according to claim 1, wherein: the elastic piece (52) is a tension spring.