CN211438430U

CN211438430U - Hobbing cutter for plane forming of inner ring cam

Info

Publication number: CN211438430U
Application number: CN201922339987.0U
Authority: CN
Inventors: 韩屹丽; 韩兴儿; 鲍燚标; 孔建东; 葛胜新; 韩国民; 倪远飞
Original assignee: Hangzhou Zongxing Technology Co ltd
Current assignee: Hangzhou Zongxing Technology Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-09-08
Anticipated expiration: 2029-12-24

Abstract

The utility model relates to a hobbing cutter for inner ring cam plane takes shape, affiliated hobbing cutter structure technical field, which comprises a frame, be equipped with the displacement base in the frame, be equipped with the hob frame on the displacement base, be equipped with the lift post between hob frame and displacement base, displacement base front side is equipped with the fixed spiral shell of stock fixed mutually with the frame, is equipped with on the fixed spiral shell of stock and fixes the spacing nested inner ring cam stock of spiral shell looks axle formula, is equipped with the hobbing cutter spare that touches with inner ring cam stock phase displacement formula between inner ring cam stock and hob frame, is equipped with the main shaft that cup joints with hob frame phase limit between hobbing cutter spare and hob frame. The hobbing cutter piece comprises a hobbing cutter body, an installation shaft hole which is parallel to the main shaft and is in key limiting is arranged in the hobbing cutter body, and a plurality of groups of hobbing cutter tools which are distributed in an annular mode at equal intervals are arranged on the periphery of the hobbing cutter body. The method has the characteristics of convenience and rapidness in processing, high efficiency, good processing precision and short period. The problem of inner ring cam plane shaping is solved. The processing performance of the hob on the plane of the inner ring cam is improved.

Description

Hobbing cutter for plane forming of inner ring cam

Technical Field

The utility model relates to a hobbing cutter technical field, concretely relates to hobbing cutter for inner ring cam plane takes shape.

Background

A common cutter for processing external-meshing straight-tooth cylindrical gears and helical cylindrical gears. When machining, the hob is equivalent to a spiral gear with a large spiral angle, the number of teeth is the number of heads of the hob, the workpiece is equivalent to another spiral gear, the hob is in space meshing with the other spiral gear according to a pair of spiral gears, the hob rotates at a fixed speed ratio, and the tooth shapes of the hob are enveloped by the tooth shapes of the hob teeth at adjacent positions cut in sequence. Most commonly used hobs are single-ended, and in mass production, multi-ended hobs are also commonly used for efficiency improvement.

A gear machining tool with cutter teeth arranged in a spiral line along a cylinder or a cone is used for machining cylindrical gears, worm gears and other cylindrical toothed workpieces (see gear machining and gears) according to a generating method. According to different purposes, the hob is divided into a gear hob, a worm gear hob, a non-involute generating hob, a fixed hob and the like. The cutter rotates for one turn, and the gear rotates by one tooth around the axis of the gear; the multi-head hob rotates for one rotation, and the number of teeth rotated by the gear is equal to the number of heads of the hob. When the helix angle of a hob of the worm gear hob is less than 5 degrees, a straight chip pocket is usually formed, so that the manufacture and the sharpening are convenient; hob cutters with large helix angles are often formed with helical flutes to avoid the disadvantage of cutting one side edge of the cutter tooth with a large negative rake angle. Medium and small module gear hobs made of high speed steel are generally of integral construction.

Disclosure of Invention

The utility model discloses mainly solve and have the processing degree of difficulty among the prior art big, inefficiency, machining precision poor and the not enough of cycle length, provide a hobbing cutter that is used for inner ring cam plane to take shape, it has the characteristics that processing is convenient, efficient, machining precision is good and the cycle is short. The problem of inner ring cam plane shaping is solved. The processing performance of the hob on the plane of the inner ring cam is improved.

The above technical problem of the present invention can be solved by the following technical solutions:

the utility model provides a hobbing cutter for inner ring cam plane takes shape, includes the frame, the frame on be equipped with the displacement base with the movable inlay card of frame looks, the displacement base on be equipped with the hob frame, hob frame and displacement base between be equipped with the lift post, displacement base front side be equipped with the fixed spiral shell of stock fixed mutually with the frame, the fixed spiral shell of stock on be equipped with the fixed spiral shell of stock looks spacing nested inner ring cam stock of pivot formula, inner ring cam stock and hob frame between be equipped with the hobbing cutter spare that contacts with inner ring cam stock phase displacement formula, hobbing cutter spare and hob frame between be equipped with the main shaft that cup joints with hob frame looks limit. The hob cutter piece comprises a hob cutter body, wherein an installation shaft hole which is parallel to the main shaft and is used for limiting the key is formed in the hob cutter body, and a plurality of groups of hob cutters which are distributed in an annular mode at equal intervals are arranged on the periphery of the hob cutter body.

Preferably, the hob cutter comprises a plurality of hob head teeth integrated with the hob body, and the hob head teeth are provided with cutter heads integrally sintered with the hob head teeth.

Preferably, a slide rail is arranged between two sides of the upper end of the rack and the displacement base, a screw rod motor is arranged at the tail end of the rack, and a screw rod is arranged between the screw rod motor and the displacement base.

Preferably, the upper end of the hob head is provided with a hob rotating motor which is in spacing nesting with the main shaft through a clamp spring type flat key.

Preferably, the upper end of the hob part is provided with a limit stop ring integrated with the main shaft, and the lower end of the hob part is provided with a locking nut in threaded sleeve connection with the main shaft.

Preferably, the blank fixing and rotating frame comprises a supporting plate, a positioning plate fixed with the supporting plate through bolts is arranged on the supporting plate, a blank rotating motor in bearing type sleeving connection with the positioning plate is arranged on the side edge of the positioning plate, and a movable pressing plate in bearing type fixed fitting with the inner ring cam blank is arranged on the other side of the positioning plate.

Preferably, a guide groove which is integrated with the support plate and is inserted in the movable pressure plate in a clamping and inserting manner is arranged between the movable pressure plate and the support plate.

Preferably, the two sides of the frame are provided with protective covers fixed with the frame through bolts.

The utility model discloses can reach following effect:

the utility model provides a hobbing cutter for inner ring cam plane takes shape compares with prior art, has the characteristics that processing is convenient, efficient, the machining precision is good and the cycle is short. The problem of inner ring cam plane shaping is solved. The processing performance of the hob on the plane of the inner ring cam is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic top view of the present invention.

Fig. 3 is a structural sectional view of the rolling element of the present invention.

Fig. 4 is a schematic side view of the rolling element of the present invention.

In the figure: the automatic hobbing machine comprises a screw motor 1, a frame 2, a hobbing cutter frame 3, a hobbing cutter rotating motor 4, a main shaft 5, a limiting retaining ring 6, a protective cover 7, a hobbing cutter piece 8, an inner ring cam blank 9, a locking nut 10, a blank fixing rotating frame 11, a lifting column 12, a displacement base 13, a sliding rail 14, a supporting plate 15, a blank rotating motor 16, a positioning plate 17, a movable pressing plate 18, a guide groove 19, a screw rod 20, an installation shaft hole 21, a hobbing cutter body 22, a hobbing cutter 23, cutter frame teeth 24 and a cutter head 25.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b): as shown in figures 1-4, the hobbing cutter for plane forming of the inner ring cam comprises a frame 2, wherein protective covers 7 fixed with the frame 2 through bolts are arranged on two sides of the frame 2. The rack 2 is provided with a displacement base 13 movably embedded with the rack 2, a slide rail 14 is arranged between two sides of the upper end of the rack 2 and the displacement base 13, the tail end of the rack 2 is provided with a screw rod motor 1, and a screw rod 20 is arranged between the screw rod motor 1 and the displacement base 13. The displacement base 13 is provided with a hob head 3, and the upper end of the hob head 3 is provided with a hob rotating motor 4 which is embedded with the spindle 5 in a limiting manner through a clamp spring type flat key. A lifting column 12 is arranged between the hob head 3 and the displacement base 13, a blank fixing rotary frame 11 fixed with the frame 2 is arranged on the front side of the displacement base 13, the blank fixing rotary frame 11 comprises a supporting plate 15, a positioning plate 17 fixed with the supporting plate 15 through bolts is arranged on the supporting plate 15, a blank rotating motor 16 in bearing type sleeve joint with the positioning plate 17 is arranged on the side edge of the positioning plate 17, and a movable pressing plate 18 in bearing type fixed joint with the inner ring cam blank 9 is arranged on the other side of the positioning plate 17. A guide groove 19 which is integrated with the support plate 15 and is inserted with the movable pressing plate 18 in a clamping and inserting manner is arranged between the movable pressing plate 18 and the support plate 15. An inner ring cam blank 9 which is in rotary shaft type limiting nesting with the blank fixing rotary frame 11 is arranged on the blank fixing rotary frame 11, a hobbing cutter part 8 which is in phase displacement type contact with the inner ring cam blank 9 is arranged between the inner ring cam blank 9 and the hobbing cutter frame 3, a limiting retaining ring 6 which is integrated with the main shaft 5 is arranged at the upper end of the hobbing cutter part 8, and a locking nut 10 which is in threaded type sleeving with the main shaft 5 is arranged at the lower end of the hobbing cutter part 8. A main shaft 5 which is in limited sleeve joint with the hob head 3 is arranged between the hob head 8 and the hob head 3. The hob part 8 comprises a hob body 22, a mounting shaft hole 21 which is parallel to the main shaft 5 and is in key limiting is arranged in the hob body 22, and 4 groups of hob cutters 23 which are distributed in an annular mode at equal intervals are arranged on the periphery of the hob body 22. The hob cutter 23 comprises 24 hob head teeth 24 integrated with the hob body 22, and the hob head teeth 24 are provided with cutter heads 25 integrally sintered with the hob head teeth 24.

To sum up, the hob for the plane forming of the inner ring cam has the characteristics of convenience in machining, high efficiency, good machining precision and short period. The problem of inner ring cam plane shaping is solved. The processing performance of the hob on the plane of the inner ring cam is improved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without deviating from the basic characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

In conclusion, the above description is only the specific embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.

Claims

1. A hob for the planar forming of inner ring cams, comprising a frame (2), characterized in that: the device is characterized in that a displacement base (13) movably clamped and embedded with the rack (2) is arranged on the rack (2), a hob head (3) is arranged on the displacement base (13), a lifting column (12) is arranged between the hob head (3) and the displacement base (13), a blank fixing rotating frame (11) fixed with the rack (2) is arranged on the front side of the displacement base (13), an inner ring cam blank (9) in shaft type limiting and nesting with the blank fixing rotating frame (11) is arranged on the blank fixing rotating frame (11), a hob piece (8) in phase-shifting contact with the inner ring cam blank (9) is arranged between the inner ring cam blank (9) and the hob head (3), and a main shaft (5) in limiting and sleeving connection with the hob head (3) is arranged between the hob piece (8) and the hob head (3); hobbing cutter spare (8) include hobbing cutter body (22), hobbing cutter body (22) in be equipped with and tie key spacing installation shaft hole (21) mutually with main shaft (5), hobbing cutter body (22) periphery be equipped with a plurality of groups and be equidistant annular distribution's hobbing cutter (23).

2. The roller cutter for inner ring cam face forming of claim 1, wherein: the hob cutter (23) comprises a plurality of hob head teeth (24) integrated with the hob body (22), and the hob head teeth (24) are provided with cutter heads (25) integrally sintered with the hob head teeth (24).

3. The roller cutter for inner ring cam face forming of claim 1, wherein: the automatic screw rod adjusting mechanism is characterized in that sliding rails (14) are arranged between two sides of the upper end of the rack (2) and the displacement base (13), a screw rod motor (1) is arranged at the tail end of the rack (2), and a screw rod (20) is arranged between the screw rod motor (1) and the displacement base (13).

4. The roller cutter for inner ring cam face forming of claim 1, wherein: the upper end of the hob head (3) is provided with a hob rotating motor (4) which is embedded with the spindle (5) in a circlip type flat key limiting manner.

5. The roller cutter for inner ring cam plane forming of claim 4 wherein: the upper end of the hobbing cutter piece (8) is provided with a limiting baffle ring (6) integrated with the main shaft (5), and the lower end of the hobbing cutter piece (8) is provided with a locking nut (10) in threaded sleeve connection with the main shaft (5).

6. The roller cutter for inner ring cam face forming of claim 1, wherein: the fixed frame (11) of revolving of stock include backup pad (15), backup pad (15) on be equipped with backup pad (15) looks bolt fastening's locating plate (17), locating plate (17) side be equipped with stock rotation motor (16) that cup joints with locating plate (17) looks bearing type, locating plate (17) another side be equipped with the fixed movable clamp plate (18) of laminating of inner ring cam stock (9) looks bearing type.

7. The roller cutter for inner ring cam face forming of claim 6, wherein: a guide groove (19) which is integrated with the support plate (15) and is inserted with the movable pressing plate (18) in a clamping and inserting manner is arranged between the movable pressing plate (18) and the support plate (15).

8. The roller cutter for inner ring cam face forming of claim 1, wherein: and protective covers (7) which are fixed with the frame (2) through bolts are arranged on two sides of the frame (2).