CN215846128U

CN215846128U - Gear hobbing frock

Info

Publication number: CN215846128U
Application number: CN202121863918.0U
Authority: CN
Inventors: 钱卫锋
Original assignee: Changshu City Fuyou Transmission Equipment Technology Co ltd
Current assignee: Changshu City Fuyou Transmission Equipment Technology Co ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2022-02-18
Anticipated expiration: 2031-08-11

Abstract

The utility model discloses a gear hobbing tool, relates to the technical field of gear hobbing, and aims at solving the problem of low clamping efficiency in the prior art.

Description

Gear hobbing frock

Technical Field

The utility model relates to the technical field of gear hobbing, in particular to a gear hobbing tool.

Background

The hobbing gear belongs to a generating method, and can be regarded as a gear without meshing clearance and a rack for transmission. When the hobbing cutter rotates for one circle, the rack is equivalent to move a cutter tooth in the normal direction, and the hobbing cutter continuously transmits the gear as if an infinitely long rack continuously moves. When the hob and the hobbing blank are in forced meshing transmission according to the transmission ratio of the gear to the rack strictly, the envelope curves of the hob teeth on a series of positions form the involute tooth profile of a workpiece, and the required involute tooth profile can be hobbing along with the vertical feeding of the hob.

Generally when gear hobbing processing gear, need fix the gear raw materials on certain frock, current fixed frock passes through the bolt and is connected with the nut, fixes the raw materials, but when unscrew for a long time and the nut of screwing, makes the inboard screw thread of nut damage easily to the installation is inconvenient, makes the clamping inefficiency, so needs the gear hobbing frock now.

SUMMERY OF THE UTILITY MODEL

The hobbing tool provided by the utility model solves the problem of low clamping efficiency.

In order to achieve the purpose, the utility model adopts the following technical scheme:

hobbing frock, including the disc, fixedly connected with pull rod in the middle of the upside of disc, the pull rod has cup jointed transmission cover, fixed cover, base and backing plate from bottom to top in proper order, the top fixedly connected with of pull rod draws the cap, draw a plurality of archs of edge fixedly connected with of cap, set up in the middle of the backing plate with protruding complex recess.

Preferably, the number of the protrusions is three, and circular arc-shaped protrusions are arranged on the outer edges of the three protrusions.

Preferably, the groove is composed of three mutually communicated notches, and the outer end faces of the notches adopt an arc structure.

Preferably, the upper side of the disc is provided with a transmission sleeve sleeved outside the pull rod, and the transmission sleeve is of a circular ring structure.

Preferably, the upper side of the transmission sleeve is provided with a fixed sleeve fixedly sleeved on the outer side of the pull rod, and the fixed sleeve is of a circular ring structure.

Preferably, the upper side of the fixed sleeve is provided with a base movably sleeved outside the pull rod, the fixed base is of a circular ring structure, and the number of the bases is three.

The utility model has the beneficial effects that:

1. through the gear sleeve in the outside of pull rod to the setting is between backing plate and base, then the pull rod rotates, make the cap that draws of pull rod one end rotate certain angle with the arch, make arch and recess dislocation mutually, stimulate the pull rod after that, make the arch drive backing plate hold-down gear, just so can make the gear fix on the pull rod, make clamping efficiency improve, need not to pass through bolt and nut, the convenience and the utilization ratio of gear clamping have been improved, make installation and dismantlement efficiency improve, and then improve work efficiency.

2. Through three arch and three breach, can be when arch and breach correspond mutually for backing plate roll-off pull rod, convenient to detach can support the backing plate through the arch in arch and breach dislocation, and then makes the backing plate compress tightly the gear at the upside of base, makes the centre gripping convenient rapidly more, improves clamping efficiency.

Drawings

Fig. 1 is an overall schematic view of the gear hobbing tool provided by the utility model.

Reference numbers in the figures: 1. a disc; 2. fixing a sleeve; 3. a pull rod; 4. a protrusion; 5. pulling the cap; 6. a groove; 7. a base plate; 8. a base; 9. a transmission sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1, the gear hobbing tool comprises a disc 1 and is characterized in that a pull rod 3 is fixedly connected in the middle of the upper side of the disc 1, a transmission sleeve 9, a fixing sleeve 2, a base 8 and a base plate 7 are sequentially sleeved on the pull rod 3 from bottom to top, a pull cap 5 is fixedly connected to the top end of the pull rod 3, a plurality of protrusions 4 are fixedly connected to the edge of the pull cap 5, grooves 6 matched with the protrusions 4 are formed in the middle of the base plate 7, a gear is sleeved on the outer side of the pull rod 3 and arranged between the base plate 7 and the base 8, then the pull rod 3 is rotated, the pull cap 5 and the protrusions 4 at one end of the pull rod 3 are rotated by a certain angle, the protrusions 4 and the grooves 6 are staggered mutually, then the pull rod 3 is pulled, the protrusions 4 drive the base plate 7 to press the gear, so that the gear can be fixed on the pull rod 3, the clamping efficiency is improved, bolts and nuts are not needed, and the convenience and the utilization rate of gear clamping are improved, make the installation improve with dismantlement efficiency, and then improve work efficiency, through three arch 4 and three breach, can be in arch 4 and breach mutual correspondence for backing plate 7 roll-off pull rod 3, convenient to detach can support backing plate 7 through the arch when protruding 4 misplaces with the breach, and then makes backing plate 7 compress tightly the gear at the upside of base 8, makes the centre gripping convenient more rapidly, improves clamping efficiency.

The number of the protrusions 4 is three, and arc-shaped protrusions are arranged on the outer edges of the three protrusions 4.

Recess 6 comprises the breach of three intercommunication each other, and the outer terminal surface of breach adopts the circular arc structure, mutually supports through breach and arch 4, conveniently blocks arch 4 at the upside of backing plate 7 for backing plate 7 prevents not hard up with the gear chucking.

The upper side of the disc (1) is provided with a transmission sleeve (9) sleeved outside the pull rod (3), the transmission sleeve (9) adopts a circular ring structure, the clamping area is increased, and clamping is more stable.

The upper side of the transmission sleeve (9) is provided with a fixed sleeve (2) fixedly sleeved outside the pull rod (3), and the fixed sleeve (2) adopts a circular ring structure.

The upside of fixed cover (2) is provided with base (8) that the activity cup jointed in pull rod (3) outside, solid base (8) adopt ring shape structure, base (8) are provided with three

The working principle is as follows: the gear is sleeved on the outer side of the pull rod 3 and is arranged between the backing plate 7 and the base 8, then the pull rod 3 is rotated, the pull cap 5 at one end of the pull rod 3 is rotated by a certain angle with the protrusion 4, so that the protrusion 4 and the groove 6 are staggered mutually, then the pull rod 3 is pulled, the protrusion 4 drives the backing plate 7 to press the gear, thus the gear is fixed on the pull rod 3, the clamping efficiency is improved, the convenience and the utilization rate of gear clamping are improved without bolts and nuts, the mounting and dismounting efficiency is improved, the working efficiency is improved, the backing plate 7 can slide out of the pull rod 3 through the three protrusions 4 and the three notches when the protrusion 4 and the notch are mutually corresponding, the dismounting is convenient, the backing plate 7 can be abutted through the protrusion when the protrusion 4 and the notch are staggered, and the gear is pressed on the upper side of the base 8 by the backing plate 7, the clamping is more convenient and rapid, and the clamping efficiency is improved.

In the description of the present invention, it is to 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", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. Hobbing frock, including disc (1), its characterized in that, fixedly connected with pull rod (3) in the middle of the upside of disc (1), the top fixedly connected with of pull rod (3) draws cap (5), draw a plurality of archs (4) of edge fixedly connected with of cap (5), backing plate (7) have been cup jointed in the activity on pull rod (3).

2. The hobbing tool according to claim 1, characterized in that the number of the protrusions (4) is three, and circular arc-shaped protrusions are arranged on the outer edges of the three protrusions (4).

3. The gear hobbing tool according to claim 1, wherein a groove (6) is formed in the inner side of the backing plate (7), the groove (6) is composed of three mutually communicated notches, and the outer end faces of the notches are of an arc structure.

4. The gear hobbing tool according to claim 1, characterized in that a transmission sleeve (9) sleeved outside the pull rod (3) is arranged on the upper side of the disc (1), and the transmission sleeve (9) is of a circular ring structure.

5. The gear hobbing tool according to claim 4, characterized in that a fixing sleeve (2) fixedly sleeved on the outer side of the pull rod (3) is arranged on the upper side of the transmission sleeve (9), and the fixing sleeve (2) is of a circular ring structure.

6. The hobbing tool according to claim 5, characterized in that the upper side of the fixed sleeve (2) is provided with three bases (8) movably sleeved on the outer side of the pull rod (3), the bases (8) are of a circular ring structure, and the number of the bases (8) is three.