Be based on the design of clamping apparatus of spare parts of a kind of bracket of UG NX5.0

0 undertake clamping apparatus of bracket spare parts three-dimensional build what model and project pursue to make, protruding showed the characteristic with efficient and accurate UG. Keyword: UG of 　 of attempt of project of bracket of clamping apparatus of UG machine tool is current advanced CAD, make and analyse software, use extensively at domain of industry of cool one's heels of mechanical, electron, boat, use its powerful function not only what can complete a part easily is three-dimensional build a model, assemble, achieve intuitionistic the function with visualize, and can make plan of 2 dimension project quickly, use at actual production. This exemple uses UG NX5.

0, undertake building a model to bracket spare parts, undertake designing to clamping apparatus. Introduction of 1 bracket spare parts shows the 3 dimension picture of bracket spare parts 1 times like the graph, material is casting pig, production is approved in producing a type to be. By its three-dimensional graph generates a project to pursue, if pursue,2 are shown. The treatment craft line of this spare parts is as follows: The clamping apparatus that design of 2 clamping apparatus needs to design is used at working procedure the jig of 3, in this working procedure treatment besides assuring precision of bore diameter dimension and surface roughness, the central line that still should assure aperture is more than to the verticality of N face 0.

02 Rnrn, reach the uniformity with large hole wall. According to the structural characteristic of the spare parts, do the design that be as follows: Plan of 1) firm fixed position and component of option fixed position machine a requirement with respect to this working procedure for, the fixed position of workpiece needs to restrict 5 freedom to spend only can, the rotational freedom that machines aperture center line besides the edge is spent besides. But stabilize to workpiece installation goes to the lavatory and locate, can use complete fixed position. The structural characteristic from this spare parts and consideration of requirement of working procedure treatment to assure φ line of 45 aperture center is opposite the verticality of N face is more than 0.

The requirement of 02 Mm, according to fiducial coincide principle, the N side that should choose work is main fixed position fiducial, restrict 3 freedom of workpiece to spend with gripper shoe, a mobile freedom is spent, two turn freedom is spent. Here, gripper shoe chooses to use clamping apparatus system, its dimension cannot decide now, the dimension such as the fixed position component at the back of the basis and clamping unit will decide; to reach benefit to at falling equably to make sure the wall of 45 aperture of φ is large the treatment of working procedure, choice φ 65 outside round axes is the 2nd fixed position fiducial, with short V form piece locates, limitative workpiece is spent twice freely, it is two mobile freedom are spent. Outside columnar dimension φ 65, according to GB2209, 1991 choices secure V form piece; in addition, it is the 3rd fixed position with the one flank of M fiducial, restrict a freedom to spend with the one hammer that prop up, what restrict here is a rotational freedom degree. According to GB2226, 1991, choose the A hammer that prop up. According to the choice of above, workpiece obtained complete fixed position. The guiding of affirmatory cutting tool of 2) of Nextpage 　 　 device is considered by the precision of treatment aperture from this working procedure, in needing to be installed in, finish auger, enlarge, bore with a reamer is versed in 3 times the treatment of the pace, reason is used change quickly auger set, change in order to decrease get covered auxiliary time. Get a structural dimension with lining to be able to consult national level GB2265, 1991 reach GB2263, 1991 medium concerned parts. Mix simply from clamping apparatus structure additionally make sure precision considers, use stationary to get pattern plate. Because workpiece size is larger,3) decides clamp, the muscle of intermediate part hardens compose tigidity is poorer, because this chooses a principle to set out from clamping force, way of clamping force effect should face towards main fixed position datum plane, v, and the action point of clamping force should drop in the place with workpiece good tigidity, stand by treatment place as far as possible even at the same time. The clamp place of workpiece is stood by be gotten on by the end panel of treatment aperture and clamping force brings to bear on on the M face of the other one aspect of the matter of workpiece. To assure enough clamping force, used orgnaization of clamp of helix pressing plate to undertake clamp to workpiece. Among them pressing plate basis GB2177, 1991, of the choice is mobile curved pressing plate. Body of clamping apparatus of body of 4) design clamping apparatus is done not have plan should all dish consideration, make each comprise component to be contacted organicly through clamping apparatus physical ability on clamping apparatus. This clamping apparatus determined the structural size of clamping apparatus body, with treatment of Z550 vertical drilling machine, according to drilling machine T chamfer wide firm fixed position bolts, choose GB2206, key of the A of 1991 fixed position. Attempt of project of 3 clamping apparatus makes the basic design of above sufficient clamping apparatus, use UG NX5 according to dimension.

The 0 module that build a model design each parts respectively, after hardware design comes out, use UG NX5.

0 assemble module to Xin Xin is assembled the spare parts rise, generate three-dimensional assembly drawing, if pursue,3 are shown. Make 2 dimension plan directly by three-dimensional assembly drawing next, and tag dimension, if pursue,4 are shown. Need to tag 5 kinds of dimension on graph of clamping apparatus general assembly commonly: Of 1) clamping apparatus outside the dimension between the dimension of surface of the fixed position on component of fixed position of 2) of 　 of 　 of × 370mm X 191mm; of outline dimension 550 Mm and surface of each fixed position. Here fixed position props up hammer and V the positional dimension between red piece (185 ± 0.

1)mm. Surface of 3) fixed position arrives to the knife or cutting tool guides cite a positional measure between, and guide cite a positional measure between. Auger cover and of cutting tool cooperate dimension φ 45. 4) coordinates measure basically. Lining and auger between pattern plate cooperate dimension φ 75, auger set with dimension φ cooperates between lining 62. 5) clamping apparatus and drilling machine contact dimension. Fixed position bolts cooperate dimension 22H7. 4 conclusion undertake the design of machine tool clamping apparatus with UG software, the three-dimensional operation that build a model is handy, agile, 2 dimension cartography is intuitionistic, fast, accurate, rose to design efficiency and design quality greatly. Be in especially when making 2 dimension assembly drawing, compare with traditional scale method photograph, it is to show its are efficient and fast more exact dominant position. CNC Milling CNC Machining