CN205166561U - Bent axle grinding device - Google Patents

Abstract

The utility model discloses a bent axle grinding device, its technical scheme main points be including set up on the workstation fixture with grind the mechanism, fixture is including main stiff end with from the stiff end, fixture still rotates the motor and is used for driving the moving mechanism who removes from the stiff end including being used for driving main stiff end pivoted, main stiff end is equipped with the connection pad, the connection pad is equipped with the connecting hole, is equipped with the fastener that is used for with the flange jogged joint of bent axle in the connecting hole. Main stiff end grasps the connection pad, and the bolt passes through nut fastening connection bent axle and connection pad behind the flange hole of connecting hole and bent axle in proper order, makes the bent axle rotate at connection pad pivoted in -process thereupon, this connection pad is contradicted in the terminal surface of bent axle to through the flange hole and the connection pad of fastener fastening connection bent axle, consequently not only can avoid the bent axle clamp mark to appear, avoid the bent axle to produce relative movement in rotating the in -process bent axle with the connection pad simultaneously, thereby it grind the quality to be favorable to improving, and the production safety.

Description

Bent axle milling apparatus

Technical field

The utility model relates to Production of Crankshaft apparatus field, and more particularly, it relates to a kind of bent axle milling apparatus.

Background technology

Bent axle is most important parts in engine.It bears the power that connecting rod transmits, and is changed into torque and exported by bent axle and drive other operate accessories on engine.Bent axle is subject to the acting in conjunction of the centrifugal force of gyrating mass, the gas inertia power of mechanical periodicity and reciprocal inertia force, makes bent axle bear the effect of flexion torsion load.Therefore require that bent axle has enough strength and stiffness, journal surface need wear-resisting, work evenly, balance is good.

Crankshaft processing technology flow process has: 1, blank is made an inventory, 2, end face milling, 3, milling two women's head-ornaments mass center hole, 4, milling location clamping area, 5, rough turn axle journal and termination connecting rod neck, 6, bore oil hole, 7, make an inventory oilhole two face, 8, finish turning axle journal nine, finish turning end face, 10, finish turning 1, 4 connecting rods, 11, finish turning 2, 3 connecting rods, 12, roll extrusion, 13, fine grinding cone pulley, gear and Front oil seal axle journal, 14, finish turning thrust surface, end face of flange and locating journal, 15, fine grinding trunnion and Rear oil seal axle journal, 16, fine grinding rod journal, 17, keyseat, 18, oil hole orifice chamfer, 19, wash, 20, oilhole mouth throws mouth, 21, dynamic balanced, 22, subtract the balanced duplicate removal of outer supplement, 23, clearance keyway and oil hole, 24, polishing, 25, clearance, 26, inspection eventually, 27, antirust.

At present, the application number on market be 201310748365.8 Chinese patent disclose a kind of trunnion polishing lathe of bent axle, it comprises clamp system and workpiece polishing mechanism; The trunnion polishing lathe of bent axle, comprise clamp system and workpiece polishing mechanism, directly place on lathe by bent axle, taper thimble one and taper thimble two insert in the cone shaped countersink of crankshaft two end, bent axle clamped by two pieces of fixture blocks, adopts driving lever to stir the trunnion of crankshaft rotating polishing bent axle.

During polishing, advance in tractive driven by motor sand ribbon, sand ribbon, driven by motor mount pad slidably reciprocates along slide rail, realize sand ribbon to polish to the trunnion of bent axle, during polishing bent axle, directly bent axle is placed in positioning pillars one and positioning pillars two, bent axle accommodates by the cone shaped countersink that taper thimble one and taper thimble two insert crankshaft two end, although avoid the bent axle that existing bent axle clamping technique causes to a certain extent easily easily occur catcher mark, avoid follow-up polishing and accommodate impression, but not only need driving lever to insert in the flange hole of bent axle, thus stir crank rotation, also need workpiece polishing mechanism to drive sand ribbon friction bent axle simultaneously, therefore there is following problem in this structure: 1, need to insert in the flange hole of crankshaft end by driving lever, realized the rotation of bent axle by rotating lever with this, and driving lever can leave gap when coordinating with flange hole, therefore the clamping of bent axle is not compact fixing, vibration can be caused because of stressed inequality when workpiece polishing mechanism is polished to bent axle in crankshaft rotating process, or even rock, thus impact polishing quality, or even production safety, therefore and can realize 2, driving lever carries out circumference around taper thimble one for the center of circle and rotates, and this equipment is different from prior art, and structure is failed to understand, whether no matter, from complex structure degree, the production cost purchasing this equipment is high, 3, workpiece polishing mechanism requires high to the fit dimension of clamping fixed block, tight or loose when not so clamping fixed block fastens, and bent axle surface all can be caused with sand ribbon to contact uneven, impact polishing quality, if 4, workpiece polishing mechanism only has one, so once can only polish one and turn footpath during bent axle polishing, and polish length consuming time in the multiple footpath of turning of bent axle, working (machining) efficiency is low, and if lathe is configured with multiple workpiece polishing mechanism when bent axle being polished simultaneously, although be conducive to increasing work efficiency, configuration structure is many, and only tractive motor in sand ribbon just needs multiple stage, considerably increases use cost, is unfavorable for extensive popularization.

Utility model content

For the deficiency that prior art exists, the purpose of this utility model is the bent axle milling apparatus providing a kind of clamping stable, and this milling apparatus grinding effect is good and structure simple, is conducive to reducing use cost.

For achieving the above object, the utility model provides following technical scheme: a kind of bent axle milling apparatus, comprise setting clamping device on the table and grinding mechanism, described clamping device includes main stiff end and from stiff end, described clamping device also includes rotary electric machine for driving main stiff end to rotate and for driving the travel mechanism from stiff end movement, described main stiff end is provided with terminal pad, described terminal pad is provided with connecting hole, is provided with the securing member for being connected with the flange hole of bent axle in described connecting hole.

By adopting technique scheme, main stiff end can adopt scroll chuck to clamp terminal pad, and securing member can adopt bolt and nut to coordinate, screw bolt passes connecting hole is connected bent axle and terminal pad with after the flange hole of bent axle by fastening nuts, rotates in the process that bent axle is rotated at terminal pad thereupon; This terminal pad contacts at the end face of bent axle, and flange hole and the terminal pad of bent axle is fastenedly connected by securing member, therefore bent axle not only can be avoided to occur catcher mark, avoid bent axle bent axle and terminal pad in rotation process to produce relative movement simultaneously, thus be conducive to improving Grinding Quality, and production safety.

The utility model is set to further: be describedly also provided with connecting hole from stiff end, is also provided with the securing member for being connected with the flange hole of bent axle in this connecting hole.

By adopting technique scheme, after terminal pad is fixedly connected with one end of bent axle, thimble can be adopted to withstand the other end of bent axle from stiff end, and thimble is connected with the flange hole of bent axle equally, be conducive to strengthening bent axle and the stable connection degree from stiff end, avoid bent axle to produce in rotation process further to rock, thus be conducive to improving Grinding Quality, and production safety.

The utility model is set to further: described grinding mechanism includes rotating disk and two mounting rods, described rotating disk is rotationally connected with on workbench, the end of two mounting rods is hinged setting, two mounting rods are provided with the conflict button of circular arc relatively, complete circle is buckled in the process that two buttons of conflicting can rotate around hinged place at mounting rod, described mounting rod is provided with clamping device relative to the other end of hinged place, end, one of them mounting rod and rotating disk bias hinged.

By adopting technique scheme, after bent axle is fixing by clamping device, first in conflict button, be fitted with sand paper, then be fastened on conflicting and to be processed turn surface, footpath, sand paper is conflicted and turns footpath outer surface, start drive unit, clamping device band dynamic crankshaft is made to be in rotation process, and mounting rod Eccentric-hinge is connected on rotating disk in this rotation process, even if therefore the footpath of turning of bent axle is eccentric rotary, also can be rotated in dish rotation process by mounting rod and conflict button is fastened on all the time turn footpath outer wall, thus realize the grinding of bent axle.This structure is simple, is therefore conducive to reducing equipment cost, simultaneously easy and simple to handle; And being conflicted by sand paper by button of conflicting in process of lapping is turning on the outer wall of footpath, be conducive to improving sand paper and the uniformity coefficient of bent axle surface contact in the process of simultaneously turning crankshaft, be conducive to raising grinding effect.

The utility model is set to further: the flexible pad of described conflict button internal fixtion.

By adopting technique scheme, after conflict button fastens also ringwise, the internal diameter of cushion is not more than the external diameter turning footpath to cushion, greatly reduces the dimensional fits precision of cushion, also be conducive to improving sand paper simultaneously and contact at the uniformity coefficient turning footpath outer wall, effectively raise grinding effect.

The utility model is set to further: described rotating disk is provided with two, and one of them mounting rod is articulated with between two rotating disks.

By adopting technique scheme, rotating disk is rotationally connected with on workbench, and the orientation of rotating disk is the length direction of bent axle, rotating disk can rotate on the table, and mounting rod is articulated with between two rotating disks, enhance stability when rotating disk circumference is rotated, can not swing be produced, be conducive to improving stability when mounting rod swings after being driven along with crank rotation.

The utility model is set to further: described clamping device includes gripper cylinder, and the described gripper cylinder mounting rod hinged with rotating disk is connected, and the piston rod of described gripper cylinder is provided with the clamping button fastening another mounting rod.

By adopting technique scheme, be connected with gripper cylinder relative to its other end with another mounting rod hinged place with the hinged mounting rod of rotating disk, when fastening conflict button, by gripper cylinder, two mounting rods are fixedly connected with, conflict button is fastened on all the time in crank rotation process and turns footpath outer wall, which passes through connection or the fractionation of pneumatic control mounting rod, is conducive to improving automaticity, reach conveniently dismounting, thus effectively improve the dismounting efficiency of bent axle.

The utility model is set to further: described clamping button is the nut be connected with piston rod thread.

By adopting technique scheme, regulating nut position on the piston rod, with clamping degree during this adjustable mounting rod clamping, the chucking power turned on the outer wall of footpath is buckled in time conveniently for regulating button of conflicting to fasten, degree of flexibility when rotating between mounting rod and bent axle is regulated with this, the best preferably can enable bent axle flexible rotating under the drive of rotary electric machine, and sand paper is conflicted and turned footpath outer wall thus grinding by button of simultaneously conflicting all the time.

The utility model is set to further: bottom and the mounting rod of described gripper cylinder are hinged.

By adopting technique scheme, mounting rod, when dismantling, is convenient to mounting rod and is smashed from clamping in switching process and spin off.

The utility model is set to further: described workbench is provided with gag lever post relative to the opposite side of gripper cylinder.

By adopting technique scheme, because mounting rod has certain length, therefore when operator stands in workbench side clamping, being provided with gag lever post can avoid mounting rod too large around hinged place rotation, thus cause operator's inconvenience to be buckled well by mounting rod, after limited location bar, mounting rod is against gag lever post, and convenient station workbench fixedly mounts bar relative to the operator of gripper cylinder side.

The utility model is set to further: described grinding mechanism is provided with multiple along the length direction of bent axle.

By adopting technique scheme, being provided with multiple grinding mechanism, in time processing process, simultaneous grinding can being carried out to multiple footpaths of turning of bent axle, be conducive to the milling time shortening whole bent axle, improve working (machining) efficiency; Configure part simultaneously and be simple structure, also without the need to arranging motor equal energy source consumer on grinding mechanism, greatly reducing use cost, being convenient to promote the use of.

Accompanying drawing explanation

Fig. 1 is the stereochemical structure schematic views of bent axle milling apparatus;

Fig. 2 is A portion structure for amplifying schematic views in Fig. 1:

The opposite side stereochemical structure schematic views of Fig. 3 bent axle milling apparatus;

Fig. 4 is B portion structure for amplifying schematic views in Fig. 3:

Fig. 5 is the stereochemical structure schematic views of grinding mechanism.

Reference numeral: 1, workbench; 2, clamping device; 21, rotary electric machine; 22, travel mechanism; 23, main stiff end; 24, from stiff end; 3, grinding mechanism; 31, rotating disk; 32, mounting rod; 321, conflict button; 322, cushion; 4, terminal pad; 5, connecting hole; 6, clamping device; 61, gripper cylinder; 611, clamping button; 7, gag lever post.

Detailed description of the invention

Below in conjunction with accompanying drawing, a preferred embodiment of the present utility model is described in detail.The identical Reference numeral of wherein identical parts represents.It should be noted that, the word "front", "rear" of use is described below, "left", "right", "up" and "down" refer to direction in accompanying drawing, word " bottom surface " and " end face ", " interior " and " outward " refer to the direction towards or away from particular elements geometric center respectively.

With reference to shown in Fig. 1, a kind of bent axle milling apparatus, comprise and be arranged on clamping device 2 on workbench 1 and grinding mechanism 3, clamping device 2 includes main stiff end 23 and from stiff end 24, clamping device 2 also includes rotary electric machine 21 for driving main stiff end 23 to rotate and for driving the travel mechanism 22 from stiff end 24 movement, main stiff end 23 is provided with terminal pad 4, and terminal pad 4 is provided with connecting hole 5, is provided with the securing member for being connected with the flange hole of bent axle in connecting hole 5.Its concrete structure can 1 show as with reference to the accompanying drawings: main stiff end 23 adopts scroll chuck to clamp terminal pad 4, and securing member can adopt bolt and nut to coordinate, screw bolt passes connecting hole 5 is connected bent axle and terminal pad 4 with after the flange hole of bent axle by fastening nuts, bent axle is fixedly connected with terminal pad 4, avoids terminal pad 4 bent axle in the process of rotating to produce and rotate; The bent axle other end from stiff end 24, can thimble be adopted, by travel mechanism 22, thimble is withstood crankshaft end, and thimble be connected with the flange hole of bent axle equally.

First bent axle and terminal pad 4 can be connected after the connecting hole 5 of screw bolt passes terminal pad 4 and the flange hole of bent axle by fastening nuts during use, then by terminal pad 4 clamping on scroll chuck, and thimble is withstood the end of bent axle by the other end of bent axle by travel mechanism 22, be connected bent axle and thimble by after the connecting hole 5 on screw bolt passes thimble and the flange hole of bent axle by fastening nuts simultaneously.After this bent axle clamping, terminal pad 4 contacts at the end face of bent axle, and flange hole and the terminal pad 4 of bent axle is fastenedly connected by securing member, therefore bent axle can be avoided to occur catcher mark, bent axle and thimble are also solidly connected simultaneously, are conducive to the installation soundness strengthening bent axle, avoid bent axle to produce in rotation process further and rock, thus be conducive to improving Grinding Quality, and production safety.

With reference to shown in Fig. 2, terminal pad 4 is provided with through hole along its axial running through, and this through hole is connecting hole 5, and the arrangement mode of this connecting hole 5 is consistent with the flange hole arrangement mode of bent axle, and the quantity of connecting hole 5 is two or more, to strengthen the soundness of connection; With reference to shown in Fig. 4, and the connecting hole 5 of thimble, can realize by being welded with nut in the peripheral outer wall of thimble, the arrangement mode of nut is consistent with the flange hole arrangement mode of bent axle, and is also preferably provided with multiple, to strengthen the soundness of connection.

With reference to shown in Fig. 5, grinding mechanism 3 includes rotating disk 31 and two mounting rods 32, and rotating disk 31 is rotationally connected with on workbench 1, and scroll chuck and thimble are coaxially arranged, and arranges with rotating disk 31 axis parallel simultaneously; The end of two mounting rods 32 is hinged setting, two mounting rods 32 are provided with the conflict button 321 of circular arc relatively, complete circle is buckled in the process that two conflict buttons 321 can rotate around hinged place at mounting rod 32, mounting rod 32 is provided with clamping device 6 relative to the other end of hinged place, end, and one of them mounting rod 32 is eccentric hinged with rotating disk 31.After bent axle is fixing by clamping device 2, first in conflict button 321, be fitted with sand paper, then conflict button 321 is fastened on and to be processed turns surface, footpath, sand paper is conflicted and turns footpath outer surface, start rotary electric machine 21, clamping device 2 is made to be with dynamic crankshaft to be in rotation process, and mounting rod 32 Eccentric-hinge is connected on rotating disk 31 in this rotation process, even if therefore the footpath of turning of bent axle is eccentric rotary, also can be rotated by mounting rod 32 and make in dish 31 rotation process conflict buckle 321 to be fastened on all the time and to turn footpath outer wall, thus realize the grinding of bent axle.This structure is simple, is therefore conducive to reducing equipment cost, simultaneously easy and simple to handle; And being conflicted by sand paper by conflict button 321 in process of lapping is turning on the outer wall of footpath, be conducive to improving sand paper and the uniformity coefficient of bent axle surface contact in the process of simultaneously turning crankshaft, be conducive to raising grinding effect.

With reference to shown in Fig. 5, the flexible pad 322 of conflict button 321 internal fixtion.Cushion 322 conflict button 321 fasten after also ringwise, the internal diameter of cushion 322 is not more than the external diameter turning footpath, greatly reduce the dimensional fits precision of cushion 322, be also conducive to improving sand paper simultaneously and contact at the uniformity coefficient turning footpath outer wall, effectively raise grinding effect.

With reference to shown in Fig. 5, rotating disk 31 is provided with two, and one of them mounting rod 32 is articulated with between two rotating disks 31.Be rotationally connected with on workbench 1 by rotating disk 31, and the orientation of rotating disk 31 is the length direction of bent axle, rotating disk 31 can rotate on the mounting shaft, and mounting rod 32 is articulated with between two rotating disks 31; This structure increases rotating disk 31 and the contact area of installation shaft, enhance stability when rotating disk 31 circumference is rotated, can not swing be produced, be conducive to improving stability when mounting rod 32 swings after being driven along with crank rotation.

With reference to shown in Fig. 5, clamping device 6 includes gripper cylinder 61, and gripper cylinder 61 is connected on the mounting rod 32 hinged with rotating disk 31, and the piston rod of gripper cylinder 61 is provided with the clamping button 611 fastening another mounting rod 32.Be connected with gripper cylinder 61 relative to its other end with another mounting rod 32 hinged place with the hinged mounting rod 32 of rotating disk 31, when fastening conflict button 321, by gripper cylinder 61, two mounting rods 32 are fixedly connected with, conflict button 321 can be fastened on all the time in crank rotation process and turn footpath outer wall, which passes through connection or the fractionation of pneumatic control mounting rod 32, be conducive to improving automaticity, reach conveniently dismounting, thus effectively improve the dismounting efficiency of bent axle.

With reference to shown in Fig. 5, clamping button 611 is the nut be connected with piston rod thread.Regulating nut position on the piston rod, clamping degree when clamping with this adjustable mounting rod 32, the chucking power turned on the outer wall of footpath is buckled in time conveniently for regulating conflict button 321 to fasten, degree of flexibility when rotating between mounting rod 32 and bent axle is regulated with this, the best preferably can enable bent axle flexible rotating under the drive of rotary electric machine 21, and sand paper is conflicted and turned footpath outer wall thus grinding by conflict button 321 all the time simultaneously.

With reference to shown in Fig. 5, bottom and the mounting rod 32 of gripper cylinder 61 are hinged.Mounting rod 32, when dismantling, is convenient to mounting rod 32 and is spun off from clamping button 611 in switching process.

With reference to shown in Fig. 3, workbench 1 is provided with gag lever post 7 relative to the opposite side of gripper cylinder 61.Because mounting rod 32 has certain length, therefore when operator stands in workbench 1 side clamping, being provided with gag lever post 7 can avoid mounting rod 32 too large around hinged place rotation, thus cause operator's inconvenience to be buckled well by mounting rod 32, after limited location bar 7, mounting rod 32 is against gag lever post 7, and convenient station workbench 1 fixedly mounts bar 32 relative to the operator of gripper cylinder 61 side.

With reference to shown in Fig. 1, grinding mechanism 3 is provided with many covers along the length direction of bent axle.Be provided with many this grinding mechanisms 3 of cover, in time processing process, simultaneous grinding can be carried out to multiple footpaths of turning of bent axle, be conducive to the milling time shortening whole bent axle, improve working (machining) efficiency; Configure part simultaneously and be simple structure, also without the need to arranging motor equal energy source consumer on grinding mechanism 3, greatly reducing use cost, being convenient to promote the use of.

Below be only preferred embodiment of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, all technical schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims (10)

1. a bent axle milling apparatus, comprise and be arranged on clamping device (2) on workbench (1) and grinding mechanism (3), it is characterized in that: described clamping device (2) includes main stiff end (23) and from stiff end (24), described clamping device (2) also includes rotary electric machine (21) for driving main stiff end (23) to rotate and for driving the travel mechanism (22) from stiff end (24) movement, described main stiff end (23) is provided with terminal pad (4), described terminal pad (4) is provided with connecting hole (5), the securing member for being connected with the flange hole of bent axle is provided with in described connecting hole (5).

2. bent axle milling apparatus according to claim 1, is characterized in that: be describedly also provided with connecting hole (5) from stiff end (24), is also provided with the securing member for being connected with the flange hole of bent axle in this connecting hole (5).

3. bent axle milling apparatus according to claim 1 and 2, it is characterized in that: described grinding mechanism (3) includes rotating disk (31) and two mounting rods (32), described rotating disk (31) is rotationally connected with on workbench (1), the end of two mounting rods (32) is hinged setting, two mounting rods (32) are provided with the conflict button (321) of circular arc relatively, complete circle is buckled in the process that two buttons (321) of conflicting can rotate around hinged place at mounting rod (32), described mounting rod (32) is provided with clamping device (6) relative to the other end of hinged place, end, one of them mounting rod (32) is eccentric hinged with rotating disk (31).

4. bent axle milling apparatus according to claim 3, is characterized in that: the described conflict button flexible pad of (321) internal fixtion (322).

5. bent axle milling apparatus according to claim 3, is characterized in that: described rotating disk (31) is provided with two, and one of them mounting rod (32) is articulated with between two rotating disks (31).

6. bent axle milling apparatus according to claim 3, it is characterized in that: described clamping device (6) includes gripper cylinder (61), described gripper cylinder (61) mounting rod (32) hinged with rotating disk (31) is connected, and the piston rod of described gripper cylinder (61) is provided with the clamping button (611) fastening another mounting rod (32).

7. bent axle milling apparatus according to claim 6, is characterized in that: described clamping button (611) is the nut be connected with piston rod thread.

8. bent axle milling apparatus according to claim 7, is characterized in that: bottom and the mounting rod (32) of described gripper cylinder (61) are hinged.

9. bent axle milling apparatus according to claim 6, is characterized in that: described workbench (1) is provided with gag lever post (7) relative to the opposite side of gripper cylinder (61).

10. bent axle milling apparatus according to claim 3, is characterized in that: described grinding mechanism (3) is provided with multiple along the length direction of bent axle.