Device of a kind of fast clamp

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  • source:MCGUFFIE CNC Machining
Classics of fast clamp structure produces end panel cam test and verify, use convenient, operation simple, can improve manufacturing efficiency substantially. If want to improve treatment efficiency, shorten blame cutting time, when tool clamping apparatus is designed, except have convenient, agile, accurate and outside reliable tabulator, still should have can the fast clamp device of rapid clamp workpiece. One kind introduces to use end panel cam from one example proceed with below the clamping apparatus structure of fast clamp workpiece. Treatment example pursues 1 for some company truckload with component dish of hub diagram, need to machine aperture of 2- φ 13mm among them. From the point of blueprint technology requirement, exterior surface roughness and its dimension public errand, position public errand are lax, difficulty of technology of spare parts itself is not tall, machining is so add value also very won't tall. If want to machine this implementation benefit is the greatest change, improve manufacturing efficiency substantially only, reduce sheet cost. For this we designed to use end panel cam the jig clamping apparatus of fast clamp. Graph if structure of dish of hub jig clamping apparatus and an its job principle pursue show 2 times, jig clamping apparatus basically provides location of body, work to sell by clip, work location is covered, board of pressing plate, pull rod, join with a hinge, compress ball bearing of bedspring, ejector pin, thrust, end panel cam, jig board and get a composition. Workpiece reachs φ 45+0 with already machining the left end panel that pass.

1+0.

05mm, φ 11mm (one of 6- φ 11mm aperture) fixed position, namely at the same time two sell fixed position, use clamp of shift of pull rod axial loose workpiece. When the job, cross workpiece pull rod to use fixed position to cover first reach fixed position to sell fixed position, pressing plate suit reserves on pull rod, move handgrip of end panel cam to arrange hour hand roll next, right now ejector pin moves right below the action of end panel cam (will compress bedspring impaction at the same time) , pass board of join with a hinge to use lever principle to make pull rod towards the left mobile, the pressing plate that has installed beforehand is moved in the Zun Xiangyi of pull rod below workpiece clamp. The action of thrust ball bearing is the attrition force that overcomes end panel cam and clamping apparatus body in order to increase the attrition power between end panel cam and ejector pin, the clamp that in order to increases end panel cam and lock up ability oneself. Broach of the 13mm that use φ is in oriented get covered guiding to fall can machine aperture of 2- φ 13mm easily. Treatment ends, move handgrip of end panel cam anticlockwise roll, below the spring back effect that reduces bedspring, ejector pin moves reversely, pull rod reachs pressing plate restoration, workpiece completes loose action, realized fast fixed position and outfit clip thereby. Graph 2 jig clamping apparatus (in the graph only indicative main component) principle of job of orgnaization of clamp of cam of end panel of principle of job of orgnaization of clamp of end panel cam is the wedge that uses inclined plane of end panel cam urgent action, workpiece of direct or indirect clamp and have lock up function oneself. Its are commonly about parameter: β 1, the included angle that quick stroke place occupies end panel cam, ° of general β 1=60; β 2, the included angle that place of journey of job of end panel cam occupies, ° of general β 2=150; α 1, litre of role that end panel cam promotes Cheng quickly, ° of general α 1=15; α 2, litre of role that job of end panel cam promotes Cheng, ° of general α 2=5. Graph the graphic representation of 3 end panel cam in be jig clamping apparatus, its lead is 11, we spread out by φ 40mm, working journey is amounted to 52.

33mm, the axial distance that the job rises Cheng is amounted to 4.

58mm, can satisfy use requirement completely. Graph cam of 3 end panel classics of fast clamp structure produces cam of this end panel test and verify, use convenient, operation simple, can improve manufacturing efficiency substantially. CNC Milling