Plane machines the design of special fixture

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  • source:LAURENDA CNC Machining
Summary: ? っ of fragrant commonplace of  of Ban of fish hawk of  of Piao miscellaneous orangutan refineds  of Xi of  of the cook that suckle faint masts preface of? of to fold of core of eyebrow of swollen ㄓ of street of four ancienting name for a water catltrop is in the treatment of nonferrous metal, if the machining such as aluminium alloy, copper alloy, magnesium alloy is medium, classics regular meeting encounters dimension precision and parallelism to ask very tall two parallel are planar, when designing fixture, be sure to with among them a plane is fiducial will machine another plane, and another plane often is whole plane needs machining, can add without the place be down closing device. Introduce two kinds of methods to design this kind of fixture now. 2 methods one structure. 2.

Cylinder of 1 job principle 9 pull downward move inclined piece 4, as a result of inclined a bearing piece 7 it is fixed do not move, inclined piece 4 move downward, thereby impaction is machined workpiece 1. As a result of,be in in treatment process inclined piece 4 suffer cylinder 9 action, always have the tendency that moves downward, inclined piece 4 with by treatment workpiece the 1 attrition force between is pulled downward from beginning to end, make be machined workpiece 1 stick go up closely in bottom datum plane. Be like cylinder 9 on push inclined piece 4 when, inclined piece 4 along direct a 6 medium inclined oriented chamfer slide up, loosen thereby workpiece. Right now inclined piece 4 with by treatment workpiece 1 between have enough space, be machined the emplacement of workpiece and take taking is very convenient. 2.

Point of 2 orgnaizations design is inclined piece 4 bevel take 15 ° of 12 ° ～ to be beautiful, too large clamping force is insufficient, if too small when achieving angle of friction, after be being machined by treatment workpiece, outstretched from time to tome an uprush force. Demand of flank of the workpiece that be added is higher, can be being machined workpiece and inclined piece 4 between add a small cushion, lest inclined a next 4 abrade in helping a process by treatment workpiece. Spacer wants as far as possible thin, and had better use metalloid data, be like plastic piece. 2.

3 structures are muscularity of actor defect clamp, reliable, thick, finish machining all but. Apply to large quantities of quantities to produce. In machining a process, have from beginning to end be down tighten force beforehand. Be close friends by tigidity of treatment work structure, in be being installed to place a process by treatment workpiece otherwise, be out of shape, thin wall spare parts is not applicable this kind of method that hold clip. This structure needs to have gas cause. 2.

Collect of electron of 4 application example, communication is agglomerate box body. 3 methods 2 structures. 3.

Vacuum of 1 job principle produces device job, the many alveolus inside clamping apparatus body generate negative pressure, firmly ground grip is machined workpiece, in machining a process, always have tighten force beforehand downward. 3.

The actor defect of 2 structures fits the part with all sorts of large walls, especially laminose shape spare parts. Suit large quantities of quantities to produce. Should not be on the workpiece that be added have too much via, if have a few Kong Zeying is separated with small sealing ring. This structure suits the precision work with not much mental allowance relatively. This structure uses vacuum generator or vavuum pump. 3.

The machining of cover board of computer of notebook of HP of 3 application example. CNC Milling