CN2592339Y

CN2592339Y - Omnidistance direction graded constant-speed planar lapping machine

Info

Publication number: CN2592339Y
Application number: CN03200295U
Authority: CN
Inventors: 翟文杰; 王闯
Original assignee: Harbin Institute of Technology Shenzhen
Current assignee: Harbin Institute of Technology Shenzhen
Priority date: 2003-01-09
Filing date: 2003-01-09
Publication date: 2003-12-17
Anticipated expiration: 2013-01-09

Abstract

The utility model relates to a constant-speed surface grinder with a gradual change in the whole direction, which relates to a sliding device that constrains the movement track of the surface grinder. The uniformity of the grinding stroke and speed of the plane grinder with eccentric motion is poor, and the planetary motion grinder with hypocycloid track has continuous large-angle reflexes, unbalanced motion, and it is difficult to ensure the parallelism of the workpiece plane. The isolation disc slide bar (8) of the present utility model is arranged in the horizontal through hole in the isolation disc (3), the left end of the isolation disc slide bar (8) is fixed on the middle part of the left slide bar (9), and the isolation disc slide bar ( The right end of 8) is fixed on the middle part of right slide bar (10), and isolation plate slide bar (8), left slide bar (9) and right slide bar (10) are all in a horizontal plane. The trajectory of each point on the surface of the grinding workpiece of the utility model is a circle of equal size, which meets the requirements of the identity of the grinding trajectory; the grinding direction changes gradually, and an isotropic grinding surface can be obtained. The movement speed is equal and constant, and the movement stability is good.

Description

Omnidistance direction gradation type constant speed face lapping mill

Technical field: the utility model relates to the carriage of constraint plane grinder movement locus.

Background technology: current face lapping mill is from motion mode, and be divided into two big classes basically: a class is that separator is made eccentric motion, and another kind of is that separator is done planetary motion.The homogeneity of making the grinding stroke of face lapping mill of eccentric motion and speed is relatively poor, it is good that its Grinding Quality and grinding efficiency all are not so good as the planetary motion face lapping mill, and the planetary motion grinder of making the hypocycloid track is because of the continuous wide-angle inflection of track, motion is uneven, the workpiece planarization depth of parallelism is difficult for guaranteeing, form the planetary motion face lapping mill of epicylclic motion track by compound motion, it is better with all one's life that it grinds stroke, motion steadily, workpiece can be gone over the working surface of whole abrasive disk preferably, but in its major defect is, tens bearing pins on the outer disc dowel and the planetary plate tooth that is engaged with wear and tear easily, need frequent maintain and replace bearing pin and planetary plate.Above-mentioned several face lapping mill can not guarantee strictly that all the grinding movement velocity of each point on the surface of the work is definitely equal, can not guarantee that movement velocity is invariable in the surface grinding process.

The utility model content: the purpose of this utility model is a kind of omnidistance direction gradation type constant speed face lapping mill of development, it should have the movement velocity constant magnitude of workpiece planarization with respect to abrasive disk, and direction is along the tangential direction gradual change in proper order of circular path, parallel motion is done on the relative lap tool of workpiece plane, guarantee that each point is with respect to the slip distance equal (promptly grinding the homogeneity of stroke) of abrasive disk on the surface of the work, guarantee that the surplus that each point grinds off on the workpiece is identical, to guarantee by the flatness on grinding work-piece plane and the depth of parallelism, can make simultaneously on the abrasive disk wear extent of each point identical, make the geometrical precision of abrasive disk keep remaining unchanged for a long period of time, prolong the abrasive disk working face characteristics in service life.The utility model comprises top lap 1, following abrasive disk 2, separator 3, eccentric shaft 4, crank 5, abrasive disk carriage 6, main shaft 7, and it also comprises separator slide bar 8, left slide bar 9, right slide bar 10, slide block 12, slide block 11; Following abrasive disk 2 is fixed on the abrasive disk carriage 6, separator 3 be arranged on down abrasive disk 2 above, top lap 1 be arranged on separator 3 above, but separator 3 holding workpieces are movable between top lap 1 and following abrasive disk 2, main shaft 7 is arranged in the centre bore of abrasive disk carriage 6, fixedly connected with the left end of crank 5 in the upper end of main shaft 7, fixedly connected with the right-hand member of crank 5 in the lower end of eccentric shaft 4, the lower end of the upper end of eccentric shaft 4 and separator 3 flexibly connects, separator slide bar 8 is arranged in the horizontal through hole in the separator 3 and with it and is slidingly connected, the left end of separator slide bar 8 is fixed on the middle part of left slide bar 9, the right-hand member of separator slide bar 8 is fixed on the middle part of right slide bar 10, separator slide bar 8, left side slide bar 9 and right slide bar 10 all are on the horizontal plane, the two ends of left side slide bar 9 are separately positioned in the through hole 11-1 of two slide blocks 11 of homonymy and with it and are slidingly connected, the two ends of right slide bar 10 are separately positioned in the through hole 12-1 of two slide blocks 12 of homonymy and with it and are slidingly connected two slide blocks 11, slide block 12 is separately fixed on the frame.The utility model is single eccentric structure, and it is not only simple than planetary motion grinding machine structure, and grinds function than planetary motion and satisfy the specification requirement of process of lapping to motion and movement locus better.The movement locus that the utlity model has grinding work-piece surface each point is equal-sized circumference, satisfies the homogeneity requirement of grinding track; Each point is with respect to the movement velocity equal and opposite in direction of abrasive disk and invariable on the workpiece planarization, kinetic stability is good, workpiece grinds the tangential direction in proper order gradual change of direction along circular path, can avoid grinding tool on workpiece planarization, to produce and repeat track, being formed with line grinds, be easy to obtain isotropic high-precision lapped face, and help improving grinding efficiency.Workpiece grind direction along each to varying cyclically, can lower the influence of process system vibration and reduce requirement the abrasive disk surface roughness.Thereby reduce requirement to the device fabrication precision, and the raising of grinding tool roughness also helps retaining of grinding agent, the wearing and tearing of lap tool are even, are easy to guarantee by the flatness on grinding work-piece plane and the depth of parallelism, and the advantage that can prolong the service life of abrasive disk working face.The utility model also has easy to operate, and each parts of grinder are not easy to wear, use durable, reliable, grinding efficiency height, stay-in-grade advantage.

Description of drawings: Fig. 1 is an overall structure schematic diagram of the present utility model, and Fig. 2 is a vertical view of the present utility model, and Fig. 3 is the overall structure schematic diagram of the specific embodiment two, and Fig. 4 is the vertical view of the specific embodiment two.

The specific embodiment one: present embodiment is made up of top lap 1, following abrasive disk 2, separator 3, eccentric shaft 4, crank 5, abrasive disk carriage 6, main shaft 7, separator slide bar 8, left slide bar 9, right slide bar 10, slide block 11, slide block 12; Following abrasive disk 2 is fixed on the abrasive disk carriage 6, separator 3 be arranged on down abrasive disk 2 above, top lap 1 be arranged on separator 3 above, but separator 3 holding workpieces are movable between top lap 1 and following abrasive disk 2, main shaft 7 is arranged in the centre bore of abrasive disk carriage 6, fixedly connected with the left end of crank 5 in the upper end of main shaft 7, fixedly connected with the right-hand member of crank 5 in the lower end of eccentric shaft 4, the lower end of the upper end of eccentric shaft 4 and separator 3 flexibly connects, separator slide bar 8 is arranged in the horizontal through hole in the separator 3 and with it and is slidingly connected, the left end of separator slide bar 8 is fixed on the middle part of left slide bar 9, the right-hand member of separator slide bar 8 is fixed on the middle part of right slide bar 10, separator slide bar 8, left side slide bar 9 and right slide bar 10 all are on the horizontal plane, the two ends of left side slide bar 9 are separately positioned in the through hole 11-1 of two slide blocks 11 of homonymy and with it and are slidingly connected, the two ends of right slide bar 10 are separately positioned in the through hole 12-1 of two slide blocks 12 of homonymy and with it and are slidingly connected two slide blocks 11, slide block 12 is separately fixed on the frame.

The specific embodiment two: the difference of the present embodiment and the specific embodiment one is, respectively be provided with a slide block that can slide 11 thereon on left side slide bar 9 and the right slide bar 10, slide block 12, separator slide bar 8 is fixed on the separator 3, slide block 11, through hole 11-1 in the slide block 12 and the following and through hole 11-1 of through hole 12-1, through hole 12-1 vertically has lower through-hole 11-2,12-2, the left end of separator slide bar 8 is arranged in the lower through-hole 11-2 of slide block 11 and with it and is slidingly connected, the right-hand member of separator slide bar 8 is arranged in the lower through-hole 12-2 of slide block 12 and with it and is slidingly connected, and the two ends of left slide bar 9 and right slide bar 10 are separately fixed on the frame.Other composition is identical with the specific embodiment one with annexation.

Operation principle: top lap 1 of the present utility model and following abrasive disk 2 maintain static, separator 3 is driven by eccentric shaft 4 by crank 5 and does translation in separator slide bar 8, left slide bar 9, uniting under the restriction of right slide bar 10, wherein constitute the separator slide bar 8 and left slide bar 9, right slide bar 10 vertical being connected on the separator plane of sliding pair, and left slide bar 9, right slide bar 10 and frame constitute sliding pair with separator 3.Workpiece is placed in the separator 3, and does translation with separator 3.In the specific embodiment two, separator slide bar 8 constitutes sliding pair with slide block 11, the slide block 12 at two ends, and slide block 11, slide block 12 only can slide on the perpendicular left slide bar 9 of separator slide bar 8, right slide bar 10, and the separator 3 of fixation workpiece is being done translation together by crank 5 under the restriction of above-mentioned two pairs of orthogonal sliding pairs of guide passage under the drive of eccentric shaft 4.As can be seen, separator (together with workpiece) maintains static from aforementioned schemes, if abrasive disk is up and down adopted driving and the limiting structure identical to separator in the specific embodiment one or the specific embodiment two, then can play the grinding effect same to workpiece.

Claims

1. The whole direction gradual change type constant speed surface grinder, which includes upper grinding disc (1), lower grinding disc (2), isolation disc (3), eccentric shaft (4), crank (5), grinding disc bracket ( 6), the main shaft (7), is characterized in that it also includes the isolation disc slide bar (8), the left slide bar (9), the right slide bar (10), the slide block (12), the slide block (11); the lower grinding The disc (2) is fixed on the grinding disc bracket (6), the isolation disc (3) is arranged on the top of the lower grinding disc (2), the upper grinding disc (1) is arranged on the top of the isolation disc (3), and the isolation disc (3) ) can clamp the workpiece between the upper grinding disc (1) and the lower grinding disc (2), the main shaft (7) is arranged in the center hole of the grinding disc bracket (6), and the upper end of the main shaft (7) is connected with the crank ( 5) is fixedly connected to the left end, the lower end of the eccentric shaft (4) is fixedly connected to the right end of the crank (5), the upper end of the eccentric shaft (4) is movably connected to the lower end of the isolation disc (3), and the isolation disc slide bar (8) is set In the horizontal through hole in the isolation plate (3) and slidingly connected with it, the left end of the isolation plate slide bar (8) is fixed on the middle part of the left slide bar (9), and the right end of the isolation plate slide bar (8) is fixed on the right slide In the middle part of the bar (10), the isolation disc slide bar (8), the left slide bar (9) and the right slide bar (10) are all on a horizontal plane, and the two ends of the left slide bar (9) are arranged on the same side respectively. In the through holes (11-1) of the two slide blocks (11) and slidingly connected with them, the two ends of the right slide bar (10) are respectively arranged in the through holes (12-1) of the two slide blocks (12) on the same side. ) and slidingly connected with it, two slide blocks (11), slide block (12) are respectively fixed on the frame.

2. The full direction gradient constant speed surface grinder according to claim 1, characterized in that the left slide bar (9) and the right slide bar (10) are each provided with a slider (11) that can slide on it ), the slider (12), the isolation disc slide bar (8) is fixed on the isolation disc (3), the through hole (11-1) and the through hole (12-1) in the slider (11), the slider (12) 1) There are lower through holes (11-2), (12-2) vertically below the through holes (11-1) and through holes (12-1), and the left end of the isolation disc slide bar (8) is arranged on In the lower through hole (11-2) of the slider (11) and slidably connected with it, the right end of the isolation disc slide bar (8) is arranged in the lower through hole (12-2) of the slider (12) and slidably connected with it , the two ends of the left slide bar (9) and the right slide bar (10) are respectively fixed on the frame.