CN2362631Y - Normal horizontal miller - Google Patents

Abstract

The utility model relates to a normal horizontal miller. On the basis of the background art, the miller is fixed by a driving screw and rotated by a nut, and the action of the miller is controlled by an electromagnetic clutch shaft; a gap automatic clearing and cutter relieving mechanism is additionally arranged; a rectangular bed guide rail with a quenching surface and a slide guide rail with a plastic sticking structure are used. The utility model effectively improves the rigidity of the screw rod, the strength of the guide rails and the degree of automation of the operation and reduces the friction coefficient between the guide rails; thus the utility model has the advantages of good rigidity of the driving screw rod, good miller precision retentivity, low energy consumption, long service life, capability of carrying out semiautomatic operation, high efficiency, convenient operation and control, reliability, etc.

Description

A kind of common horizontal milling machine

The utility model belongs to a kind of mechanical processing machine, particularly a kind of common horizontal milling machine that carries out semi-automatic operation.Especially being fit to industries such as all kinds of machinings, flight-line maintenance uses.

At present, the common horizontal milling machine in machining and maintenance industry use comprises base, the lathe bed of band guide rail, lifting platform, vertical, horizontal workbench, power and electrical apparatus control system, the lubricated coolant circulation system etc. that reaches.Though it is simpler that this type of milling machine has structure, versatility is stronger, characteristics such as range of application broad.Adjustment realizes but because each moving component such as lifting platform, workbench and each retaining mechanism, clearance adjustment mechanism all adopt manually, therefore exist efficient low, operation labour intensity is big, and technical requirement is also higher, and defectives such as misoperation also easily take place on the part link; In the transmission of the feed screw nut pair of workbench, adopt screw mandrel rotation, nut to fix, have the screw mandrel poor rigidity again, easily produce in the motion draw, disadvantage such as compressive strain; In addition, between lifting platform and bed ways and the workbench and between the guide rails such as workbench and lifting platform, owing to take metal and the direct contact movement of metal, and the one, frictional force is bigger, and energy consumption is higher, and the 2nd, easily get rusty, easy to wear, maintenance is also inconvenient.Therefore, this type of lathe efficient is low, and operation labour intensity is big, and operating technology is had relatively high expectations, the drive lead screw poor rigidity, and motion guide rail frictional resistance is big, and is easy to wear, and precision stability difference and maintenance are than disadvantages such as inconveniences.

The purpose of this utility model is on basis of background technology, partly adopts manually operated improvement to be designed to semi-automatic operation former lifting platform, workbench etc.; Improve the rigidity of drive lead screw and the intensity of guide rail simultaneously, the frictional force when reducing the guide rail relative motion.To reach the retentivity that improves lathe operating efficiency and precision, reduce operator's the labour intensity and the energy consumption of lathe, purpose such as increase the service life.

Solution of the present utility model is that the catenary motion that vertically, laterally reaches at workbench all adopts electromagnetic clutch to realize connecting and braking; For rigidity that improves the workbench drive lead screw and the semi-automation that makes things convenient for working table movement control, workbench of the present utility model is provided with the feed screw nut pair kind of drive longitudinal and transverse, that three directions of hanging down are moved, all adopt screw mandrel to fix, and nut rotates; One relieving mechanism is set in lifting platform simultaneously, after finishing the first road milling operation, the lifting platform certain distance that descends automatically, after workbench is return fast, rise to former feed position again, scratch machined surface when avoiding workbench to return fast and damage cutting edge roundness, thereby make working table movement and withdrawing realize semi-automatic operation, lathe bed adopts the rectangular guideway of handling through surface hardening, and on lifting platform rail plate and vertical workbench, lower guideway and each panel working face all adopt laminating structure, to improve the intensity of guide rail, the frictional resistance when reducing relative motion improves its wearability and precision stability.Thereby realization the purpose of this utility model.Therefore, the utility model comprises the lathe bed of being with guide rail and base, knife rest, lifting platform, vertical, horizontal workbench, gear, power and electrical apparatus control system, lubricated, coolant circulation system; Key is also to be provided with relieving mechanism and electromagnetic clutch axle in lifting platform; The set-up mode that the control workbench vertically, laterally reaches the feed screw nut pair of catenary motion is that screw mandrel is fixed, and nut rotates, the two ends vertical, that cross lead screw is anchored on the relevant work platform respectively, and transmission nut is axially fixed on the corresponding screw mandrel by fixed cover; Each electromagnetic clutch axle then is fixed in the lifting platform and by power output gear and is connected with each transmission nut respectively, controls the connection and the braking of its motion; One end of relieving mechanism is anchored on the lifting platform by the gear pump of band oil cylinder, the other end then is connected with elevating screw by rocking arm and controls its cutter relieving and return, in order to eliminate workbench screw mandrel and the nut gap when the climb cutting, on the horizontal work level screw mandrel, also be provided with zero-backlash automatic adjuster, this mechanism comprises the oil cylinder of motor, gear pump, band piston rod, the swing mechanism that is connected with piston rod and be subjected to its control and nut is eliminated in the gap be located on the horizontal drive lead screw.Above-mentioned alleged relieving mechanism also comprises brake valve, controls the microswitch of lifting platform decline, lifting position respectively, is located at the contact pin that moves in order to the control microswitch on the oil cylinder piston bar, is anchored on the key piece on the piston rod; Rocking arm then is anchored on the key piece and with the reciprocating motion of piston rod and swings.The electromagnetic clutch axle then comprises power transmission shaft and is located at power input and output gear on this, and the electromagnetic clutch and the braking electromagnetic clutch that are divided into the connection campaign at these two ends.The bed piece guide rail is the rectangular guideway of handling through surface hardening; And on the upper and lower guide rail on the rail plate on the lifting platform and the vertical workbench and each panel working face, all post plastics.

The utility model is owing to adopt screw mandrel to fix, and the nut transmission is also controlled the longitudinal and transverse and catenary motion of workbench by the electromagnetic clutch axle, is provided with climb cutting zero-backlash automatic adjuster and automatic tool retracting device simultaneously.Both improved the rigidity of drive lead screw, can realize semi-automatic operation again, improved efficient effectively, reduced operator's labour intensity, bed ways adopt the rectangular guideway handled through surface hardening and between each rail plate and the panel working face adopt laminating structure, improved intensity, wearability and the precision stability of guide rail again effectively and reduced coefficient of friction between the guide rail.Therefore, the utlity model has and can carry out semi-automatic operation, high efficiency, the rigidity of drive lead screw and machine tool accuracy retentivity are good, and energy consumption is lower, long service life, convenient operation and control, advantage such as reliable.

Accompanying drawing and description of drawings

Fig. 1 is the utility model front view;

Fig. 2 is the right view of Fig. 1;

Fig. 3 is feed screw nut's auxiliary structure and vertical drive lead screw structural representation;

Fig. 4 is an electromagnetic clutch axle construction schematic diagram;

Fig. 5 is zero-backlash automatic adjuster structure and drive connection, horizontal drive lead screw structural representation;

Fig. 6 is relieving mechanism structure and drive connection schematic diagram,

Among the figure: 1, base, 2, lifting platform, 3, vertical workbench (saddle), 4, zero-backlash automatic adjuster, 5, horizontal work level, 6, guide rail, 7, lathe bed, 8, knife rest, 9, Electric Appliance Cabinet, 10, vertical drive lead screw, 11, relieving mechanism; 12, horizontal drive lead screw, 13, the electromagnetic clutch axle, 14, transmission nut, 15-1,15-2: travelling gear, 15-3, power output gear, 16, pinion stand, 17, gear shaft, 18, locking nut; 19, electromagnetic clutch axle, 20, connect electromagnetic clutch, 21, the input gear, 22, the braking electromagnetic clutch; 23, motor, 24, safety valve, 25, gear pump, 26, hydraulic cylinder, 27, oil input channel, 28, piston rod, 29, swinging mounting, 30, the gap eliminates nut, 31, fulcrum post, 32, milling cutter, 33, clamp nut; 34, motor (axle), 35, gear pump, 36, hydraulic cylinder, 37, oil input channel, 38, brake valve, 39, pin, 40,41: microswitch, 42, movable touch pin, 43, piston rod, 44, the key piece, 45, rocking arm, 46, elevating screw, 47, screwed flange, 14-1, fixed cover.

Embodiment

Present embodiment is an example with the common horizontal milling machine of FX6045: base 1, and lathe bed 7, knife rest 8 grades are all same with background technology; Horizontal work level 5, the vertical basic structure of workbench 3, promptly length etc. also with background technology with.In the accompanying drawing 3: vertical screw mandrel 10, long 532mm, the long 408mm of threaded portion, screw thread are T28 * 5, two ends all are anchored on the end, front and back of vertical workbench 3 by double nut 18; Transmission nut 14, axially long 78mm, screw thread T28 * 5, its outer, middle part is connected with travelling gear 15-1 by spline, and nut 14 and gear 15-1 are all by fixed cover 14-1 and corresponding bearing axial restraint; Travelling gear (idler gear) 15-2, by gear shaft 17 and pinion stand 16 be fixed on the lifting platform 2 and with gear 15-1 and electromagnetic clutch axle on output gear 15-3 engaged transmission, the number of teeth 28, modulus 2; In the accompanying drawing 4: electromagnetic clutch axle 19 long 720mm, power input gear 21 numbers of teeth are 59, middle part output gear 15-3, the number of teeth 28, modulus is 2, connects the electromagnetic clutch 20 of motion, internal diameter Φ 35mm, axial thick 51mm, peak torque 6.3Kg.m; Brake coupling 22, internal diameter Φ 20mm, axial thick 40mm, peak torque 1.25Kg.m, clutch shaft 19 by bearing fixing in lifting platform 2, its input gear 21 directly and feed change case gears engaged to accept power.Automatic backlash is eliminated mechanism's (accompanying drawing 5) and only laterally is being provided with on the drive lead screw 12, being provided with of the kind of drive of its feed screw nut pair and driving-chain is all same with vertical screw mandrel, the long 1688mm of this screw mandrel, be anchored on by locking nut on the support at horizontal work level 5 two ends, the end that nut 30 is located at transmission nut 14 is eliminated in the gap, gap when it eliminates climb cutting by swinging mounting 29 controls, this support is connected with piston rod 28 by pivot pin and controlled by it; Motor 23 power 9W, rotating speed 1400rpm, gear pump flow 2l/min; Piston rod drives swinging mounting 29 when carrying out climb cutting, and this support drives the gap and eliminates nut 30 to screw mandrel-axial force, thereby its gap is eliminated; And motor 23 counter-rotatings when the lathe normal process, piston rod 28 drives swinging mounting cancels axial pre tightening force.Relieving mechanism (accompanying drawing 6), motor 34 driven gear pumps 35 and the piston rod 43 by hydraulic cylinder 36 and the key piece 44 that is anchored on the piston rod drive Rocker arm 4s 5 actions, and the rocking arm upper end is connected with screwed flange 47 by external screw thread, and inner chamber is connected with elevating screw, flange 47 is anchored on the lifting platform, when Rocker arm 45 moves to the left or to the right with piston rod 43 and left or turn right when moving, screwed flange 47 drives lifting platforms and descends or the rising certain distances, and it descends → stops or rising → and the action that stops is by travel switch 41 and 40 controls (returning still by former machine tool feeding mechanism control); Start this mechanism when procedure end, motor 34 rotates, pressure oil at first enters the valve rod that the top of brake valve 38 will lock in piston rod 43 grooves through F and withdraws from, piston rod 43 is moved to the left afterwards, after driving lifting platform 2 decline certain distances (present embodiment is 0.7mm), movable touch pin 42 is pressed microswitch 41, motor stall, lifting platform stops to descend, and returns fast; Restart the rising button, motor 34 counter-rotatings, piston rod 43 moves right under oil cylinder drives, drive lifting platform through Rocker arm 45 and move upward, brake valve 38 moves up under the effect of spring force when putting in place, is stuck in the groove of piston rod, simultaneously pin 39 also under the effect of spring force to moving to left, microswitch 40 actions, motor 34 and gear pump 35 etc. quits work, and lathe just can descend one manufacturing procedure.Bed ways 6 adopt the rectangular guideway of middle part band rectangular recess, the every long 1636mm of guide rail, and wide 480mm, the wide 160mm of groove, dark 50mm, the surface adopts superaudio to quench, and hardness is HS65, and hardened depth should be greater than 1.5mm; The guide rail of lifting platform 2 and panel length are 640mm, and polytetrafluoroethylplastic plastic is pasted on the surface, thick 2.5mm, paste the jail after planing operation to 1.5mm again with guide rail to grinding till reach requirement; Upper and lower guide rail and panel that vertical workbench 3 cooperates with horizontal work level 5 and lifting platform 2 also carry out above-mentioned laminating processing, laminating bed thickness 1.0mm, and the installation of whole lathe, mode is all same with background technology.

Claims (5)

1, a kind of common horizontal milling machine comprises lathe bed and base, knife rest, lifting platform, vertical, horizontal workbench, gear, power and electrical apparatus control system and lubricated, the coolant circulation system of being with guide rail; It is characterized in that in lifting platform, also being provided with relieving mechanism and electromagnetic clutch axle; The set-up mode that the control workbench vertically, laterally reaches the feed screw nut pair of catenary motion is that screw mandrel is fixed, and nut rotates, the two ends vertical, that cross lead screw is anchored on the relevant work platform respectively, and transmission nut is axially fixed on the corresponding screw mandrel by fixed cover; Each electromagnetic clutch axle then is fixed in the lifting platform and by power output gear and is connected with each transmission nut respectively, controls the connection and the braking of its motion; One end of relieving mechanism is anchored on the lifting platform by the gear pump of band oil cylinder, and the other end then is connected with elevating screw by rocking arm and controls its cutter relieving and return.

2, by the described common horizontal milling machine of claim 1, it is characterized in that also being provided with clearance eliminating mechanism on the described horizontal work level screw mandrel, this mechanism comprises oil cylinder, the swing mechanism that is connected with piston rod of motor, gear pump, band piston rod and is subjected to its control and nut is eliminated in the gap be located on the horizontal drive lead screw.

3, by the described common horizontal milling machine of claim 1, it is characterized in that described relieving mechanism also comprises brake valve, control the microswitch of lifting platform decline, lifting position respectively, be located at the contact pin that moves in order to the control microswitch on the oil cylinder piston bar, be anchored on the key piece on the piston rod; Rocking arm then is anchored on the key piece and with the reciprocating motion of piston rod and swings.

4, by the described common horizontal milling machine of claim 1, it is characterized in that described electromagnetic clutch axle comprises power transmission shaft and is located at power input and output gear on this, and be divided into these two ends connection campaign electromagnetic clutch and brake electromagnetic clutch.

5,, it is characterized in that the rectangular guideway of lathe bed fixed guide for handling through surface hardening by the described common horizontal milling machine of claim 1; And on the upper and lower guide rail on the rail plate on the lifting platform and the vertical workbench and each panel working face, all post plastics.

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