The utility model relates to a kind of fixture, particularly relates to a kind of air-actuated jaw for Milling Machining.
In machining, fix needing to carry out clamping to workpiece during the process of processing work Milling Machining.In existing processing, to workpiece be fixing by pressing plate after carry out Milling Machining again.But in existing operating process, each clamping all needs to redefine programming zero, and manual clamping cannot bear large cutting force, can not meet positioning accuracy request, inadaptable to workpiece production in enormous quantities, and require higher to the specialty of operating personnel.
Utility model content
The technical problems to be solved in the utility model is: provide a kind of positioning precision high, can bear the air-actuated jaw of large cutting force.
The utility model solves the technical scheme that its technical problem adopts: a kind of air-actuated jaw, comprise base plate, floor board framing, cylinder, push rod, boosting-rod and slide block, base plate is installed on floor board framing, base plate offers the first through hole, base plate is fixedly equiped with jaw one, described slide block activity is installed on base plate, slide block bottom offers groove, slide block is equiped with jaw two, jaw one is relative with the opening of jaw two, cylinder to be fixed on floor board framing and to be positioned at below base plate, push rod is fixedly connected with the piston rod of cylinder, boosting-rod is flexibly connected with push rod one end away from piston rod by bearing pin one, boosting-rod stretches in groove through the first through hole, boosting-rod offers pin shaft hole near upper end, bearing pin two is coated with in pin shaft hole, bearing pin two two ends are fixed in the first through hole, cylinder promotes boosting-rod by push rod and rotates around bearing pin two, slide block is with swing straight line slippage on base plate of boosting-rod.
Preferred further, described base plate is fixedly equiped with guiding device for slide block, guiding device for slide block comprises leading truck and gib block, gib block is installed on leading truck, leading truck and gib block form gathering sill, slide block profile is corresponding with gathering sill adaptive, and slide block set is contained in gathering sill, and slide block is straight line slippage in gathering sill.
Preferred further, described base plate is equiped with workpiece cushion block, workpiece cushion block is fixed by screws on base plate, and workpiece cushion block is between jaw one and jaw two.
Preferred further, bearing pin mount pad is set with in described first through hole, bearing pin mount pad is fixed by screws on base plate, bearing pin mount pad has side plate, side plate offers the jack for installing bearing pin two, bearing pin mount pad offers the second through hole, boosting-rod stretches in the groove of slide block through the second through hole.
The beneficial effects of the utility model are, the utility model air-actuated jaw adopts cylinder to promote jaw two clamping workpiece, and substitute manual clamping, improve clamping speed, cylinder also provides clamping force, can bear the large cutting force in Milling Machining process.Adopt boosting-rod to rotate around bearing pin two, utilize lever principle, realize the demand that less cylinder thrust just can meet the clamping force of the clamping to workpiece, rational in infrastructure, rigidity is strong, and clamping is reliable and stable, easy to operate.Adopt the straight line slippage of the rotating band movable slider of boosting-rod, promote jaw two pairs of workpiece and realize clamping, the interchangeability of clamping is high, adapt to the processing in enormous quantities of workpiece, positioning precision is high, redefines programming zero without the need to each clamping, reduces the professional requirement to operating personnel.Cylinder, push rod, boosting-rod are all arranged on below base plate, and structure is rationally ingenious, save site area.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the main sectional view of the utility model air-actuated jaw.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
In figure 1, base plate; 2, floor board framing; 3, cylinder; 4, push rod; 5, boosting-rod; 6, slide block; 7, jaw one; 8, jaw two; 9, bearing pin one; 10, bearing pin two; 11, guiding device for slide block; 12, leading truck; 13, gib block; 14, gathering sill; 15, workpiece cushion block; 16, bearing pin mount pad; 17, side plate; 18, jack; 19, the first through hole; 20, the second through hole; 21, groove; 22, pin shaft hole; 23, piston rod; 100, workpiece.
Detailed description of the invention
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As shown in Figure 1, Figure 2 and Figure 3, a kind of air-actuated jaw described in the utility model, comprises base plate 1, floor board framing 2, cylinder 3, push rod 4, boosting-rod 5 and slide block 6.Base plate 1 is installed on floor board framing 2, base plate 1 offers the first through hole 19, base plate 1 is fixedly equiped with jaw 1.
Described base plate 1 is fixedly equiped with guiding device for slide block 11, and guiding device for slide block 11 comprises leading truck 12 and gib block 13, and gib block 13 is installed on leading truck 12, and leading truck 12 and gib block 13 form gathering sill 14, and gathering sill 14 is low wide and up narrow.The profile of slide block 6 is corresponding with gathering sill 14 adaptive, and slide block 6 is sleeved in gathering sill 14, and slide block 6 is straight line slippage in gathering sill 14.Gathering sill 14 can limit the slippage route of slide block 6, the skew of the slip locations of anti-limited slip block 6.Slide block 6 bottom offers groove 21, slide block 6 is equiped with jaw 28, and jaw 1 is relative with the opening of jaw 28.
Bearing pin mount pad 16 is set with in described first through hole 19, bearing pin mount pad 16 is fixed by screws on base plate 1, bearing pin mount pad 16 has biside plate 17, side plate 17 offering the jack 18 for installing bearing pin 2 10, bearing pin mount pad 16 offering the second through hole 20.
Described cylinder 3 to be fixed on floor board framing 2 and to be positioned at below base plate 1, and push rod 4 is fixedly connected with the piston rod 23 of cylinder 3, and boosting-rod 5 is flexibly connected with push rod 4 one end away from piston rod 23 by bearing pin 1.Boosting-rod 5 stretches in the groove 21 of slide block 6 through the second through hole 20, and boosting-rod 5 offers pin shaft hole 22 near upper end, is coated with bearing pin 2 10 in pin shaft hole 22, and bearing pin 2 10 two ends are through on the jack 18 of bearing pin mount pad 16 side plate 17.Cylinder 3 promotes boosting-rod 5 by push rod 4 and rotates around bearing pin 2 10, and slide block 6 is with swing straight line slippage on base plate 1 of boosting-rod 5.Boosting-rod 5 is offered the position end on the upper side of pin shaft hole 22, this makes boosting-rod 5 lower end be greater than the distance of boosting-rod 5 upper end apart from pin shaft hole 22 apart from the distance of pin shaft hole 22.Like this, due to the effect of lever principle, cylinder 3 promotes boosting-rod 5 and rotates, can under less cylinder thrust, to the thrust that slide block 6 is enough, and then makes jaw 28 and jaw 1 can clamping work pieces 100.Like this, workpiece 100 is in Milling Machining process, and this air-actuated jaw can bear larger cutting force, meets Production requirement.
This air-actuated jaw is in the production process of batch clamping workpiece 100, and due to workpiece 100 and the interaction of air-actuated jaw, can be worn and torn in clamping workpiece 100 place.In order to ensure the clamping precision of workpiece 100, described base plate 1 is also equiped with workpiece cushion block 15, workpiece cushion block 15 is fixed by screws on base plate 1, and workpiece cushion block 15 is between jaw 1 and jaw 28.Like this, workpiece cushion block 15 upon wear, can be changed at any time, not only ensures the stability of clamping, and only needs to change workpiece cushion block 15, without the need to changing whole air-actuated jaw, reduces production cost.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on description, must determine its technical scope according to right.