Van brake beam brake head production miller
One, technical field under the utility model:
The utility model belongs to machining equipment, and specifically it is a kind of production miller that is applicable to the processing of railway freight-car brake beam brake head intrados.
Two, background technology:
Goods train vehicle the time is that the brake force of checking cylinder is passed to the two ends of brake beam by the amplification of lever in braking, acts on by brake shoe that wheel tread realizes again.Brake head is the support member of brake shoe, and the intrados that long-term car brakeing makes brake head contact with brake shoe very easily weares and teares.Brake head carries out machined just need built-up welding when maintenance after like this.It is existing that processing is the process equipment that adopts disc type milling machine and emery wheel grinding machine to brake head.These two kinds of traditional manufacturing process all have shortcomings such as efficient is low, low precision, big, the difficult recovery prototype of labor strength, cause poor product quality, influence traffic safety.
Three, the purpose of utility model:
The purpose of this utility model provides a kind of railway freight-car brake beam brake head that is exclusively used in and adds the special-purpose duplex head milling machine of repairing, to overcome the deficiency of existing equipment process technology.
Four, the content of utility model:
The purpose of this utility model can reach by following structures.The utility model has a horizontal lathe bed, the actuating unit that power distribution cabinet, motor, Hydraulic Station and hydraulic motor constitute is equipped with at the end and the back side at lathe bed, the milling mechanism that is made of milling head and profile milling cutter and guide rail, driving oil cylinder also is housed above lathe bed, between the middle part of lathe bed, two work guide rails, worktable lifting mechanism is installed, in the lathe bed front control operation mechanism is housed also, characteristics of the present utility model are: (1) for further improving working (machining) efficiency, each laterally places a planer-type power milling head in the vertical two ends of lathe bed symmetry.So both can realize same brake beam two ends brake head carried out milling simultaneously, when brake beam flexural deformation is big, again can be according to workpiece situation single head clamping milling.Add the time of repairing thereby significantly reduced.Near a side of workbench brake head scale dip stick is installed at gantry power milling head, make the operator in tool setting and add measure when repairing more convenient, more accurate.(2) to be installed in two gradients be on 1: 20 the traveling guide rail to the gate-type power milling head of Cai Yonging, and to be parallel to the same gradient of guide rail on the lathe bed be that 1: 20 two hydraulic cylinders are carried out advance and retreat by being installed in.Thereby realized 1: 20 angle of brake head intrados and brake beam axis.(3) profile milling cutter respectively is installed on two milling head main shafts, cutter hub passes a knife bar, and an end is installed in the main shaft of milling head, and the other end is installed in the end of milling head, and locking nut and spring bearing are arranged.Make milling cutter have good rigidity.(4) to adopt hydraulic motor be that (hydraulic motor drives leading screw, and two skewbacks vertically moved along workbench about leading screw drove again, thereby made workbench reach the purpose of vertical lift for two groups of sloping block type up-down modes of power to self-powered platform.), make that its lifting contact-making surface is big, synchronism good, up and down balance system, shock resistance be strong, is better than traditional vertical lift guide rail and other modes greatly.(5) the brake head anchor clamps are installed in the two ends of self-powered platform respectively, the dop that each anchor clamps is equipped with two clamping cylinders and uses for clamping work pieces, in order to make flexible and its rigidity of increase of dop, helical pitch is equipped with in bottom at dop, and make on its supporting seat that is fixed on the side, make whole anchor clamps to the brake head accurate positioning, clamping is reliable, to satisfy the clamping requirement of various model brake beams.(6) at the positive two ends of lathe bed two independently operating desks are set.Both can realize the interlock of two milling heads by Programmable Logic Controller, can when tool setting and single head milling, control the operational motion at workpiece two ends again respectively.Lifting digital display scale is installed on operating desk shows, be used with a watt holder scale dip stick of installing on the power milling head of gantry, it is more convenient, more accurate that the operator is measured when watt holder milling.The state that also is equipped with on operating desk shows light emitting diode, makes the operator more eye-catching, more than you know when operation, and maintenance is more convenient when breaking down.
In use, opening power, start oil pump, with about two milling heads retreat to the lathe two ends soon, workbench is reduced as far as possible, use crane gear that brake beam to be repaiied is placed the workbench top, slowly fall, watt base body is positioned on the corresponding anchor clamps positioning seat, presses the clamping button then respectively, workpiece is clamped, after determining the clamping workpiece normotopia, mobile then milling head uses a watt holder scale dip stick to the brake head top, and the lifting digital display scale on the binding operation platform, adjust worktable lifting to suitable Working position, start main shaft and make the milling head main shaft make high speed rotary motion, the worker advances motion to make milling head do at a slow speed simultaneously, after the process finishing, reduce workbench, close the milling head main shaft and make milling head be retracted into the home position fast, unload workpiece, carry out processing next time then.
Five, the advantage of utility model:
The utility model since adopted molding cutter, two milling heads to the mode of milling, hydraulic motor be power two groups of sloping block type up-down modes, about not only linkage but also can control processing respectively and watt digital display tool setting mode of holder scale dip stick that cooperates is arranged of two operating desks, make the utlity model has to add that the speed of repairing is fast, efficient is high, precision is high, recover characteristics such as prototype easily, thereby reached the purpose of this utility model.
Seven, drawing explanation:
Accompanying drawing one has provided structure diagram of the present utility model, further specifies concrete structure of the present utility model below in conjunction with accompanying drawing one.Among the figure, (1) is lathe bed, in lathe bed (1) end and the back side power distribution cabinet is housed, motor, the actuating unit that Hydraulic Station and hydraulic motor constitute, also be equipped with in lathe bed (1) top by the milling head (2) that can move along the lathe bed length feed, (3) and profile milling cutter (4), (5) and guide rail (6), (7), milling head drives oil cylinder (8), (9) milling mechanism of Gou Chenging, be separately installed with control operation mechanism (10) at the positive two ends of lathe bed (1), (11), middle part in lathe bed (1), milling head below, gantry, between the two work guide rails worktable lifting mechanism (12) that can control worktable lifting is installed, be separately installed with the brake head anchor clamps (13) of chucking workpiece at the two ends of self-powered platform (12), (14) each cover, brake head anchor clamps (13), what (14) placed the top repaiies brake beam brake head (15) for waiting to add.Milling head (2), (3) top are motor (16), (17).
Accompanying drawing two has provided the method for clamping schematic diagram of profile milling cutter (4), (5).Among the figure, moulding cutter hub (a) passes knife bar (b), and an end is installed in the milling head main shaft (c), and the other end has locking nut (d) and spring bearing (e).
Accompanying drawing three has provided the structural representation of self-powered platform (12).Among the figure, vertically move, make vertical displacement movement thereby drive workbench (i) by leading screw (f) drive two lifting skewbacks (g), (h).
Accompanying drawing four has provided the structural representation of brake head anchor clamps (13), (14).Among the figure, brake head anchor clamps (13), (14) are installed in the two ends of workbench (i) respectively, and dop (m), (n) that each anchor clamps is equipped with two clamping cylinders (j), (k) and supplies clamping work pieces to use are equipped with helical pitch (x), (y) below dop (m), (n).
The utility model can be widely used in the maintenance of railway freight-car brake beam brake head, has bigger promotion prospect.