CN202079477U

CN202079477U - Ultralong high-precision mechanical grinding head

Info

Publication number: CN202079477U
Application number: CN201120086441XU
Authority: CN
Inventors: 张玉昆
Original assignee: 刘森钢
Priority date: 2011-03-29
Filing date: 2011-03-29
Publication date: 2011-12-21
Anticipated expiration: 2021-03-29

Abstract

An ultralong high-precision mechanical grinding head comprises a main shaft, a left-spiral dustproof cover and a locking ring. The cavity of a casing is internally provided with the main body; the left end of the big stair of the main shaft is sheathed with a spring base, a spring, a spring sleeve, two sets of bearings, the locking ring and the left-spiral dustproof cover in sequence from right to left; and the right end of the big stair of the main shaft is provided with an angular contact ball bearing, an inner ring spacing sleeve arranged inside a big outer ring spacing sleeve, another angular contact ball bearing, a right locking ring and a right-spiral dustproof cover. The ultralong high-precision mechanical grinding head solves the problem that the product quality can not be ensured when an ultralong inner hole of a large-sized electrical main shaft casing is ground by a common universal inner and outer circle grinding machine; production efficiency is improved; and the requirements for the production and the development of the electrical main shaft are met.

Description

The high-accuracy mechanical bistrique of overlength

Technical field:

The utility model relates to a kind of electric main shaft process technology, particularly relates to a kind of high-accuracy mechanical bistrique of overlength, and it is applicable to large-scale electric main shaft casing overlength inner hole grinding technology.

Background technology:

The electricity main shaft is the very high electromechanical integrated product of a kind of technology content, through development and perfect constantly, its application spreads all over machine industry, bearing industry, the electronics processing industry, the Mould Machining industry, instrument processing industry and all need the enterprise of rotation at a high speed and High-speed machining, in machining large electricity main shaft casing overlength inner hole grinding process, common omnipotent in outer circular end grinding machine join the length that mechanical bistrique adds connecting axle, do not reach large-scale electric main shaft chassis hole grinding length to be processed far away, the institute of grinding machine joins mechanical bistrique connecting axle rigidity and does not reach requirement in addition, the bistrique precision is not high yet, so can not guarantee the product quality of the large-scale electric main shaft casing overlength endoporus of grinding.

Summary of the invention:

The purpose of this utility model is exactly the high-accuracy mechanical bistrique that a kind of overlength will be provided, and it can overcome the existing problem of above grinding electricity main shaft casing overlength endoporus.The purpose of this utility model is to realize like this, the high-accuracy mechanical bistrique of overlength, comprise that main shaft, left-handed dust cap, clamp ring form, it is characterized in that: be provided with main shaft in the inner chamber of casing, the big step left end of main shaft is with spring pedestal, spring, spring housing, two pairs of bearings, clamp ring, left-handed dust cap from right to left successively; The big step right-hand member of main shaft is provided with angular contact ball bearing from left to right, is provided with the inner ring separation sleeve, angular contact ball bearing, right clamp ring, dextrorotation dust cap in the separation sleeve of big outer ring.The utility model has solved the problem that the product quality of the common omnipotent inside and outside large-scale electric main shaft casing overlength endoporus of garden grinding machine can not get guaranteeing.Improve production efficiency, satisfied the needs of electric main shaft production development.

Description of drawings:

Fig. 1 is the utility model structural representation;

1, main shaft, 2, left-handed dust cap, 3, clamp ring, 4, spring housing, 5. spring, 6, spring pedestal, 7, angular contact ball bearing, 8, big outer ring separation sleeve, 9, the inner ring separation sleeve, 10, right clamp ring, 11, casing, 12, the dextrorotation dust cap.

The specific embodiment: the utility model is further described below in conjunction with accompanying drawing:

The high-accuracy mechanical bistrique of overlength, comprise that main shaft 1, left-handed dust cap 2, clamp ring 3 form, it is characterized in that: be provided with main shaft 1 in the inner chamber of casing 11, main shaft 1 big step left end is with spring pedestal 6, spring 5, spring housing 4, two pairs of bearings, clamp ring 3, left-handed dust cap 2 from right to left successively; Main shaft 1 big step right-hand member is provided with angular contact ball bearing 7 from left to right, is provided with inner ring separation sleeve 9, angular contact ball bearing 7, right clamp ring 10, dextrorotation dust cap 12 in the big outer ring separation sleeve 8.During concrete enforcement, the lengthening main axis length satisfies the processing of large-scale electric main shaft casing overlength endoporus, and the main shaft diameter has increased by 26% than former common omnipotent inside and outside garden grinding machine spindle diameter, and the rigidity of main shaft is improved and satisfies; The casing head has been done to strengthen and has been improved design, and the processing of front and back bearings chamber is undertaken by high-speed electric main shaft casing processing technology, guarantees the raising of casing front and back bearings chamber precision; Angular contact ball bearing has adopted enlarged diameter, high accuracy large pressure angle, and angular contact ball bearing circular runout precision and axial load all strengthen to some extent; Mechanical bistrique end after the assembling precision of beating has reached designing requirement, is applicable to the grinding of large-scale high-precision electricity main shaft casing overlength endoporus.

Claims

1. the high-accuracy mechanical bistrique of overlength, comprise that main shaft (1), left-handed dust cap (2), clamp ring (3) form, it is characterized in that: be provided with main shaft (1) in the inner chamber of casing (11), the big step left end of main shaft (1) is with spring pedestal (6), spring (5), spring housing (4), two pairs of bearings, clamp ring (3), left-handed dust cap (2) from right to left successively; The big step right-hand member of main shaft (1) is provided with angular contact ball bearing (7) from left to right, is provided with inner ring separation sleeve (9), angular contact ball bearing (7), right clamp ring (10), dextrorotation dust cap (12) in the big outer ring separation sleeve (8).