A kind of rotatable clamp for annulus class drilling partTechnical field
The present invention relates to a kind of fixture, be specifically related to a kind of rotatable clamp for annulus class drilling part, belong to Machining Technology field.
Background technology
Along with the fast development of modern mechanical processing, Machining Technology have also been obtained fast development.Circle ring parts is the part that in actual production, Application comparison is many, belong to more difficult processing parts, such part needs to hole on vertical type rocker arm drilling machine usually, and because each Kong Jun is circumferentially uniformly distributed same, and drilling-workpiece structure is substantially identical, therefore it is very high to the requirement of machining accuracy, meanwhile, must through this procedure of scribe point nest in Drilling operation, and circle ring parts due to axis place be hollow, not easily alignment, this adds increased the difficulty of line and have impact on accuracy.
In machining, fixture is as the device of fixing processing object, and its application is extremely important.Circle ring parts also essential clamping link in Drilling operation, but, existing traditional clamping tool and installation way, often need the actual conditions of ruling according to processing request and the workpiece of different inner diameters, different hole count, frequently change fixture, its clamping process more complicated, need the clamping that a lot of operation has been come workpiece, both add cost of labor like this, waste the time, be also unfavorable for the raising of production efficiency.
Summary of the invention
For the demand, the invention provides a kind of rotatable clamp for annulus class drilling part, this rotatable clamp structure is simple, clamping workpiece convenient, not only can meet the clamping requirement to different inner diameters annular workpieces Drilling operation, and greatly improve machining accuracy and the working (machining) efficiency in hole.
The present invention is a kind of rotatable clamp for annulus class drilling part, the structure of described rotatable clamp comprises: Rotatable indexing dish, clamp nut, slotted pressure plate, float centrih axle sleeve, studs and base, described Rotatable indexing dish is connected with base by pressure bearing, and described clamp nut, slotted pressure plate, float centrih axle sleeve and Rotatable indexing dish are chained together by studs.
In a preferred embodiment of the present invention, some grooves have been opened on the surface of described Rotatable indexing dish, have driven the locating hole of respective numbers below it.
In a preferred embodiment of the present invention, the fluting number of described Rotatable indexing dish and location hole count can be the one in 4 groove 4 holes, 6 groove 6 holes, 8 groove 8 holes.
In a preferred embodiment of the present invention, the side of described Rotatable indexing dish is provided with turning handle, and this turning handle adjustable rotating Rotatable indexing dish reaches corresponding angle.
In a preferred embodiment of the present invention, described clamp nut is positioned at above slotted pressure plate, can by clamping workpiece between slotted pressure plate and Rotatable indexing dish by tightening clamp nut.
In a preferred embodiment of the present invention, described float centrih axle sleeve adopts conical surface contact manner to carry out clamping work pieces end face, and this float centrih axle sleeve has come longitudinal register to workpiece and axle center located lateral by the squeezing action between slotted pressure plate.
In a preferred embodiment of the present invention, the below of described float centrih axle sleeve is provided with pad and spring, and this float centrih axle sleeve balances workpiece to the pressure of float centrih axle sleeve by spring pad of upspringing, and guarantees the axiality with workpiece.
Present invention is disclosed a kind of rotatable clamp for annulus class drilling part, this rotatable clamp structure is simple, clamping workpiece convenient, not only can meet the clamping requirement to different inner diameters annular workpieces Drilling operation, and greatly improve machining accuracy and the working (machining) efficiency in hole.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is the structural representation of the embodiment of the present invention for the rotatable clamp of annulus class drilling part;
In accompanying drawing, the mark of each parts is as follows: 1, Rotatable indexing dish, 2, clamp nut, 3, slotted pressure plate, 4, float centrih axle sleeve, 5, studs, 6, base, 7, pressure bearing, 8, pad, 9, spring, 10, turning handle, 11, locating hole, 12, alignment pin, 13, workpiece.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
Fig. 1 is the structural representation of the embodiment of the present invention for the rotatable clamp of annulus class drilling part; The structure of this rotatable clamp comprises: Rotatable indexing dish 1, clamp nut 2, slotted pressure plate 3, float centrih axle sleeve 4, studs 5 and base 6, described Rotatable indexing dish 1 is connected with base 6 by pressure bearing 7, and described clamp nut 2, slotted pressure plate 3, float centrih axle sleeve 4 and Rotatable indexing dish 1 are chained together by studs 5.
The rotatable clamp for annulus class drilling part that the present invention mentions for core component, by selecting multiclass Rotatable indexing dish, can meet the clamping requirement of 4 hole annular workpieces, 6 hole annular workpieces and 8 orifice ring shape work pieces process with Rotatable indexing dish 1.Wherein, Rotatable indexing dish 1 relies on pressure bearing 7 to realize relatively rotating between base 6, and some grooves have been opened on its surface, in order that smooth chip removal in drilling process, has driven the locating hole 11 of respective numbers and positioned by alignment pin 12 below it.When processing 4 hole annular workpieces, the Rotatable indexing dish in 4 groove 4 holes can be selected; When processing 6 hole annular workpieces, the Rotatable indexing dish in 6 groove 6 holes can be selected; When processing 8 hole annular workpieces, the Rotatable indexing dish in 8 groove 8 holes can be selected.The side of this Rotatable indexing dish 1 is provided with turning handle 10, rotation Rotatable indexing dish 1 can be adjusted by regulating rotary fixed handle 10 and reach corresponding angle, then positioned by alignment pin 12, thus realize the rotation of workpiece fixed angle in the clamp state.
As shown in Figure 1, the rotatable clamp for annulus class drilling part that the present invention proposes is clamped in Rotatable indexing dish 1 by clamp nut 2, slotted pressure plate 3 and float centrih axle sleeve 4 by needing the annular workpieces of processing.Wherein, slotted pressure plate 3 not only can under the twisting action of clamp nut 2 workpiece pressing 13, be also convenient to change workpiece 13; Float centrih axle sleeve 4 adopts conical surface contact manner to carry out clamping work pieces 13 end face, and on it, conical surface diameter is 80mm, and lower conical surface diameter is 200mm.Annular workpieces clamping, on Rotatable indexing dish 1, by the extruding of slotted pressure plate 3 and float centrih axle sleeve 4, achieves longitudinal register and axle center located lateral.The below of the float centrih axle sleeve 4 in this rotatable clamp is provided with pad 8 and spring 9, and float centrih axle sleeve 4 can balance workpiece 13 to the pressure of float centrih axle sleeve 4 by spring 9 pad 8 of upspringing, thus ensure that the axiality with workpiece 13.This is used for the rotatable clamp of annulus class drilling part in actual use, can turning of work piece 13 easily by regulating rotary fixed handle 10, with the needs of satisfied different hole count processing.After processing first hole, extracted by alignment pin 12, regulating rotary fixed handle 10 rotates workpiece 13 under clamped condition to next locating hole 11 place angle, again alignment pin 12 is inserted this locating hole 11, then carry out the processing of respective aperture, adjust according to this, until machine.
Present invention is disclosed a kind of rotatable clamp for annulus class drilling part, this rotatable clamp structure is simple, clamping workpiece convenient, not only can meet the clamping requirement to different inner diameters annular workpieces Drilling operation, and greatly improve machining accuracy and the working (machining) efficiency in hole.
The above; be only the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; any those of ordinary skill in the art are in the technical scope disclosed by the present invention; the change can expected without creative work or replacement, all should be encompassed within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should limit with claims is as the criterion.