CN202169422U

CN202169422U - Gear shaving clamp

Info

Publication number: CN202169422U
Application number: CN2011202569150U
Authority: CN
Inventors: 代德胜
Original assignee: CHONGQING QIUTIAN GEAR CO LTD
Current assignee: CHONGQING QIUTIAN GEAR CO LTD
Priority date: 2011-07-20
Filing date: 2011-07-20
Publication date: 2012-03-21
Anticipated expiration: 2021-07-20

Abstract

The utility model provides a gear shaving clamp which comprises a step core shaft, a cylindrical expanding sleeve and a cylindrical supporting sleeve, wherein the step core shaft is provided with a large-diameter shaft section and a small-diameter shaft section; the cylindrical expanding sleeve is sleeved on the large-diameter shaft section; the cylindrical supporting sleeve is sleeved on the small-diameter shaft section; a limit round table and a conical section stretching along the radial direction are arranged at one end of the large-diameter shaft section far from the shaft shoulder; the conical section is positioned between the limit round table and the large-diameter shaft section; the large-diameter end of the conical section is arranged close to the limit round table; both two end holes of the expanding sleeve are conical holes; the conical section is supported in the conical hole at one end of the expanding sleeve; the other end of the expanding sleeve axially stretches out of the shaft shoulder; a conical boss stretching axially is arranged at one end of the supporting sleeve and is pushed into the conical hole at the stretching end of the expanding sleeve; and the other end of the supporting sleeve axially stretches out of the end face of the small-diameter shaft section. According to the utility model, the centering error between a gear and the step core shaft is eliminated, and the gear is prevented from jumping along the radial direction due to centering error in the shaving process, therefore, the shaving precision and the production quality are improved.

Description

The gear shaving anchor clamps

Technical field

The utility model relates to a kind of anchor clamps of Machining of Gear, relates in particular to a kind of gear shaving anchor clamps.

Background technology

Common a kind of gear shaving anchor clamps comprise mandrel and clamping device composition, and on mandrel, the two ends of mandrel are provided with center positioning hole with geared sleeve; With the two top center positioning holes that hold out against the mandrel two ends of lathe, open lathe during use, process; The mode that the cylindrical of this gear shaving anchor clamps through mandrel cooperates with bore realizes centering, if if but adopt interference fit between the cylindrical of mandrel and the bore, then gear is difficult to take off from mandrel; Therefore in actual production; Regular meeting leaves the gap in the time of between the cylindrical of mandrel and the bore, and centering precision descends, and causes gear in the shaving process, to produce beating radially; Thereby centering error directly is reflected on the product quality, influences the crudy of product.

The utility model content

The technical problem that the utility model solves is: a kind of easy to use, the gear shaving anchor clamps that can eliminate the centering gap between gear and the mandrel are provided.

The technical scheme of the utility model is: a kind of gear shaving anchor clamps, it is characterized in that, and comprise the step mandrel that is provided with big footpath shaft part and path shaft part, be enclosed within the cylindrical shape ringfeder on the shaft part of said big footpath and be enclosed within the cylindrical shape top cover on the said path shaft part; Wherein, Said big footpath shaft part is provided with the spacing round platform and a conical section of radially extending away from an end of the shaft shoulder, and said conical section is between spacing round platform and big footpath shaft part, and the bigger diameter end of conical section is near spacing round platform; The aperture, two ends of said ringfeder is conical bore; Said conical section withstands in the conical bore of ringfeder one end, and the other end of ringfeder extends axially out the shaft shoulder, and an end of said top cover is provided with the conical boss that radially extends; This conical boss withstands in the conical bore of elongated end of ringfeder, and the other end of top cover extends axially out the end face of path shaft part.

Have axial open slot on the jacket wall of said ringfeder, the number of open slot is even numbers, and per two open slots are symmetrical in the radial centre lines of ringfeder.

Open slot has 12, and two open slots that are symmetrical in the radial centre lines of ringfeder are one group, and each organizes the periphery that the circular array equidistance is arranged on ringfeder.

The two ends of said step mandrel are respectively equipped with centre bore.

The beneficial effect of the utility model is: the utility model is to use like this; Ringfeder is enclosed within on the big footpath shaft part of step mandrel; This moment, one end of ringfeder withstood on the circular cone shaft part of step mandrel, and the other end of ringfeder will push up on the path shaft part that is enclosed within the step mandrel to extending the shaft shoulder then; The conical boss of top cover withstands in the conical bore of elongated end of ringfeder, and the other end of top cover extends axially out the end face of path shaft part; The gear that needs shaving is contained on the ringfeder; Next with in the top two ends centre bore that withstands on the step mandrel of two of lathe; One of them top taper seat withstands on the conical aperture that cover extends end face simultaneously; When the top conical aperture that top cover is extended end face applied axial top power, the conical boss of top cover and the circular cone shaft part of step mandrel radially supportted ringfeder and rise, thus closely cooperating between ringfeder realization after making the endoporus of gear through distortion and the step mandrel; Eliminate the centering error between gear and the step mandrel; Avoided gear in the shaving process, the appearance that produces because of centering error beating radially improved gear shaving precision and product quality.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Top nested structure sketch map in Fig. 2 the utility model;

Fig. 3 is the step mandrel structural representation in the utility model;

Fig. 4 is the ringfeder structural representation in the utility model;

Fig. 5 is the A-A line structure sketch map of Fig. 4;

Fig. 6 is that the B of Fig. 4 is to structural representation.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described further:

Referring to Fig. 1～Fig. 6; A kind of gear shaving anchor clamps; Comprise the step mandrel 1 that is provided with big footpath shaft part 1a and path shaft part 1b, be enclosed within the cylindrical shape ringfeder 2 on the big footpath shaft part 1a and be enclosed within the cylindrical shape top cover 3 on the path shaft part 1b; Wherein, said big footpath shaft part 1a is provided with a spacing round platform 1c and a conical section 1d who radially extends away from an end of the shaft shoulder, and conical section 1d is between spacing round platform 1c and big footpath shaft part 1a; The bigger diameter end of conical section 1d is near spacing round platform 1c, and big footpath shaft part 1a, path shaft part 1b, spacing round platform 1c and conical section 1d are positioned on the same axial line.The aperture, two ends of ringfeder 2 is respectively conical bore 2a and conical bore 2b; Conical section 1d withstands among the conical bore 2a of ringfeder 2 one ends, and the other end of ringfeder 2 extends axially out the shaft shoulder, and an end of top cover 3 is provided with the conical boss 3a that radially extends; This conical boss 3a withstands among the conical bore 2b of elongated end of ringfeder; Leave clearance distance between the shaft shoulder of the end face of conical boss 3a and step mandrel, the other end of top cover 3 extends axially out the end face of path shaft part 1b, and the extension end face of top cover 3 is provided with conical aperture.Have axial open slot 2c on the jacket wall of ringfeder 2, the number of open slot 2c is even numbers, and per two open slots are symmetrical in the radial centre lines of ringfeder 2.Open slot 2c in the present embodiment has 12, and two open slots that are symmetrical in the radial centre lines of ringfeder are one group, and each organizes the periphery that the circular array equidistance is arranged on ringfeder.In addition, the number of open slot 2c can also be 4,6 or 14, if number be even numbers all can, the number of open slot is many more, its distortion was big more when ringfeder was stressed.The two ends of step mandrel 1 are respectively equipped with centre bore.The utility model is to use like this; Ringfeder 2 is enclosed within on the big footpath shaft part 1a of step mandrel; This moment, one end of ringfeder 2 withstood on the circular cone shaft part 1d of step mandrel, and the other end of ringfeder 2 will push up cover 3 then and be enclosed within on the path shaft part 1b of step mandrel to the shaft shoulder that extends the step mandrel; The conical boss 3a of top cover withstands among the conical bore 2a of elongated end of ringfeder; The other end of top cover 3 extends axially out the end face of path shaft part 1b, the gear that needs shaving 4 is enclosed within on the ringfeder 2, next with in the top two ends centre bore that withstands on the step mandrel of two of lathe; One of them taper seat of top 5 withstands on the conical aperture that cover 3 extends end face; When the conical aperture that top 5 pairs of top covers extend end faces applied axial top power, the conical boss 3a of top cover and the circular cone shaft part 1d of step mandrel radially supportted ringfeder 2 and rise, and simultaneously gear were felt relieved and clamped.

Claims

1. gear shaving anchor clamps; It is characterized in that: comprise the step mandrel (1) that is provided with big footpath shaft part (1a) and path shaft part (1b), be enclosed within the cylindrical shape ringfeder (2) on the said big footpath shaft part (1a) and be enclosed within the cylindrical shape top cover (3) on the said path shaft part (1b); Wherein

Said big footpath shaft part (1a) is provided with the spacing round platform (1c) and a conical section (1d) of radially extending away from an end of the shaft shoulder; Said conical section (1d) is positioned between spacing round platform (1c) and the big footpath shaft part (1a); The bigger diameter end of conical section (1d) is near spacing round platform (1c)

The aperture, two ends of said ringfeder (2) is conical bore (2a, 2b); Said conical section (1d) withstands in the conical bore (2a) of ringfeder (2) one ends; The other end of ringfeder (2) extends axially out the shaft shoulder; One end of said top cover (3) is provided with the conical boss (3a) that radially extends, and this conical boss (3a) withstands in the conical bore (2b) of the elongated end of ringfeder, and the other end of top cover (3) extends axially out the end face of path shaft part (1b).

2. according to the described gear shaving anchor clamps of claim 1, it is characterized in that: have axial open slot (2c) on the jacket wall of said ringfeder (2), the number of open slot (2c) is even numbers, and per two open slots are symmetrical in the radial centre lines of ringfeder (2).

3. according to the described gear shaving anchor clamps of claim 2, it is characterized in that: open slot (2c) has 12, and two open slots that are symmetrical in the radial centre lines of ringfeder are one group, and each organizes the periphery that the circular array equidistance is arranged on ringfeder.

4. according to the described gear shaving anchor clamps of claim 1, it is characterized in that: the two ends of said step mandrel (1) are respectively equipped with centre bore.