Bearing machining clamping deviceTechnical field
The utility model relates to bearing machining apparatus field, particularly a kind of bearing machining clamping device.
Background technology
Bearing is a kind of very important parts in contemporary plant equipment, and its major function is supported mechanical rotary body, the mechanical load coefficient of friction in order to reduction equipment in transmission process.Existing bearing adds man-hour on lathe, the clamping device complex structure of use, and locate by nut compressing at the two ends of bearing, thereby cause the end face of bearing to process.
Utility model CN 203045331 U have announced a kind of bearing machining fast-clamping clamp, comprise clamp body and top, described top head is pyramidal structure, described fixture head is provided with and the top swelling device matching, described swelling device is hollow structure, it struts part by a plurality of elasticity and forms, and described elasticity struts on part and is provided with for axially fine spacing block.Yet the defect due to design, makes this fixture cannot carry out the processing of disalignment aperture bearing, in the time need to carrying out the bearing machining of other aperture axis, just need to change corresponding fixture, has increased processing cost, has reduced operating efficiency.
Summary of the invention
The utility model technical issues that need to address are a kind of bearing machining clamping devices, and this fixture can carry out the processing of different pore size bearing, cuts down finished cost, and increases work efficiency.
For solving above-mentioned technical problem, a kind of bearing machining clamping device of the present utility model, comprises clamp body and top, and described top head is pyramidal structure; The front end of described clamp body is hollow structure, is provided with the retracting cylinder of some different pore sizes in the cavity of described clamp body front end; The front end of described retracting cylinder is provided with swelling device, and described swelling device is hollow structure and by a plurality of elasticity, struts part and form, is provided with the top of different cross section size and coordinates with the swelling device of different pore size retracting cylinder front end; The rear end of described retracting cylinder is provided with fixture block, fixture block on internal layer retracting cylinder stretches out the sidewall of outer retracting cylinder, fixture block on outermost layer retracting cylinder stretches out the cavity body wall of described clamp body front end, on the sidewall of outer retracting cylinder and clamp body front end cavity, offer and coordinate holddown groove and the chute of installing with described fixture block, the quantity of described holddown groove is two, and two holddown grooves keep at a certain distance away in the axial direction.
Further, described elasticity struts and on part, is provided with the block for axial limiting, described block is fixed on described elasticity by elastic device and struts on part, when the described retracting cylinder in internal layer is sleeved in outer field retracting cylinder, the block on internal layer retracting cylinder can bounce back and be placed in outer retracting cylinder.
Further, to strut the quantity of part be two to described elasticity.
Adopt after said structure, by the retracting cylinder of different pore size, realize the processing of different pore size bearing, cut down finished cost, increase work efficiency.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the mounting structure schematic diagram of fixture block and chute in the utility model.
In figure: 1 is clamp body, 2 is top, and 3 is retracting cylinder, and 4 is swelling device, and 5 for elasticity struts part, and 6 is fixture block, and 7 is holddown groove, and 8 is block, and 9 is chute, and 10 is bearing
The specific embodiment
As depicted in figs. 1 and 2, the clamp body 1 and top 2 that comprises of the present utility model, described top 2 head is pyramidal structure; The front end of described clamp body 1 is hollow structure, is provided with the retracting cylinder 3 of some different pore sizes in the cavity of described clamp body 1 front end; The front end of described retracting cylinder 3 is provided with swelling device 4, and described swelling device 4 is for hollow structure and by a plurality of elasticity, strut part 5 and form, and is provided with top 2 of different cross section size to coordinate with the swelling device 4 of different pore size retracting cylinder 3 front ends; The rear end of described retracting cylinder 3 is provided with fixture block 6, fixture block on internal layer retracting cylinder stretches out the sidewall of outer retracting cylinder, fixture block 6 on outermost layer retracting cylinder stretches out the cavity body wall of described clamp body 1 front end, on the sidewall of outer retracting cylinder and clamp body 1 front end cavity, offer and coordinate holddown groove 7 and the chute 9 of installing with described fixture block 6, the quantity of described holddown groove 7 is two, and two holddown grooves 7 keep at a certain distance away in the axial direction.Bearing 10 is sleeved on swelling device 4, and fixing by top 2.
Further, described elasticity struts and on part 5, is provided with the block 8 for axial limiting, described block 8 is fixed on described elasticity by elastic device and struts on part 5, when the described retracting cylinder in internal layer is sleeved in outer field retracting cylinder, the block 8 on internal layer retracting cylinder can bounce back and be placed in outer retracting cylinder.
Further, to strut the quantity of part 5 be two to described elasticity.
The above; it is only the specific embodiment of the present utility model; protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claim was defined.