CN103358195A

CN103358195A - Grinding machine for grinding outer surface of large-diameter shaft sleeve

Info

Publication number: CN103358195A
Application number: CN 201310330750
Authority: CN
Inventors: 李留江; 刘峻; 李德铭
Original assignee: YIWEI NUMERICAL-CONTROL EQUIPMENT Co Ltd
Current assignee: YIWEI NUMERICAL-CONTROL EQUIPMENT Co Ltd
Priority date: 2013-08-01
Filing date: 2013-08-01
Publication date: 2013-10-23

Abstract

The invention discloses a grinding machine for grinding the outer surface of a large-diameter shaft sleeve. The grinding machine comprises a workpiece box, a sand wheel frame and a finisher support, wherein the sand wheel frame is arranged between the finisher support and the workpiece box; the finisher support is fixedly arranged in front of the right part of a machine body; an arc finisher is arranged on an upper sliding plate; the workpiece box for clamping a workpiece is fixedly arranged on a rotating plate; the rotating plate and the upper sliding plate are fixed; a lower sliding table is arranged in a lower sliding seat; the lower sliding seat is fixed on the left front part of the machine body. The grinding machine adopts center-free arrangement, a sand wheel is fixed, and the workpiece does feeding and reciprocating motion; the sand wheel is automatically finished and compensated; vibration of a machine tool is reduced by the fixing of the sand wheel, so that the rotating speed of the sand wheel is increased, the working efficiency is improved, and the processing precision of the machine tool is improved; the finisher is more convenient to replace; the use processing range of the machine tool can be greatly expanded by replacing and using finishers with different functions; and the same machine tool has the capacity of processing workpiece outer diameters, runners and trenches.

Description

A kind of grinding machine of grinding major diameter sleeve outer surface

Technical field:

The present invention relates to a kind of grinding machine, be specially adapted to the grinding of big-diameter bearing external diameter.

Background technology:

Existing lathe is when grinding big-diameter bearing outer surface, what adopt is the wheel grinding feeding, and workpiece is to move back and forth, after (see figure 1) holds workpiece box 1 that workpiece uses and is fixed on a certain ad-hoc location of bed ways 2, workpiece is along with bed ways slide reciprocating at lathe bed, grinding carriage 3 is to be placed on the rear side lathe bed of bed ways, pass to emery wheel 4 by motor, belt wheel and make high speed rotary motion, emery wheel planker 5 makes it do feed motion by servomotor and driving member thereof; Trimmer 6 is fixed on the lathe bed, the installation site parallels axial rear with main shaft of grinding carriage, emery wheel is axially repaired, its shortcoming is: 1, emery wheel is simultaneously made High Rotation Speed, simultaneously doing feed motion again, caused lathe produce easily the vibration and cause the surface of the work crudy not high, because the emery wheel High Rotation Speed produces vibration easily, so can't continue to improve grinding wheel speed increases work efficiency, feed accuracy also can not get good assurance simultaneously, thereby causes the workpiece accurate to dimension not high.2, trimmer is installed in the emery wheel back, easily causes the inconvenience of operator on adjusting.3, because of the restriction in the topology layout, the workpiece kind that lathe can be processed is relatively less.

Summary of the invention:

Task of the present invention is to propose a kind of rotating speed that can improve emery wheel, increases work efficiency, improves a kind of grinding machine of grinding big-diameter bearing outer surface of the machining accuracy of lathe.

Task of the present invention is finished like this, a kind of grinding machine of grinding major diameter sleeve outer surface, it comprises workpiece box, grinding carriage and trimmer bearing, it is characterized in that: be mounted with grinding carriage between described trimmer bearing and the workpiece box, described trimmer bearing is fixedly installed to the place ahead of lathe bed right part, grinding wheel arc dresser is placed on the upper slide, the workpiece box and the finger plate that hold workpiece install and fix, described finger plate and upper slide are fixed, lower slide unit is assemblied in the lower slider, and lower slider is fixed on the left front section of lathe bed.Described upper slide and lower slide unit are to adopt the guide rail routing motion.

Technical solution of the present invention has following effect: the present invention adopts and is not in the mood for layout, emery wheel is fixed, workpiece is done feeding and reciprocating action, automatic grinding wheel finishing and compensation, fixedly reduced the vibration of lathe by emery wheel so that improve grinding wheel speed, the machining accuracy of increasing work efficiency, improve lathe becomes a reality; Trimmer is changed convenient, by changing the trimmer that uses difference in functionality, can greatly expand the use range of work of lathe, has possessed the ability of processing work external diameter, raceway, raceway groove on same lathe.

Description of drawings:

Fig. 1 is the decomposition texture schematic diagram of prior art; Fig. 2 is structural representation of the present invention; Fig. 3 is the structural representation of Fig. 1.

Drawing explanation: 1, workpiece box, 2, guide rail, 3, grinding carriage, 4, emery wheel, 5, the emery wheel planker, 6, trimmer, 7, finger plate, 8, upper slide, 9, lower skateboard, 10, lower slide unit, 8-11, upper slide, 10-12, lower slide unit, 13, lower slider, 14, lathe bed, 15, grinding wheel arc dresser, 16, the trimmer bearing.

The specific embodiment:

The technical program machine adopted is not in the mood for layout, the position is mounted with grinding carriage 3 between workpiece box 1 and trimmer bearing, emery wheel 4 is housed on the grinding carriage that is fixed, at this moment emery wheel can only be made High Rotation Speed, and no longer do the motion of feeding, thereby reduced the vibration of lathe, described trimmer bearing 16 is fixedly installed to the place ahead of lathe bed 14 right parts, be conducive to operating personnel's operation and adjustment, the correction of its trimmer is to drive upper slide 8 by servomotor and ball-screw to move to realize relative to lower skateboard 9, lower skateboard 9 is to be realized by the ball-screw that shaft coupling connects by servomotor with respect to the correction-compensation of lower slide unit 10, described above two kinds of mutually in vertical direction motions, grinding wheel arc dresser is by by putting on upper slide 8, the structure that grinding wheel arc dresser adopts is the patent No. 201320007976.2, and name is called: ball bearing steel ball supporting Internal and external cycle trimmer.The workpiece box 1 that holds workpiece is installed on the finger plate 7, finger plate is fixed by securing member and upper slide 8-11, upper slide 8-11 and lower slide unit 10-12 adopt guide rail 2 to work in coordination, its motion is the reciprocating motion that realizes the workpiece front and back by servomotor and ball-screw-transmission, lower slide unit 10-12 is assemblied on the lower slider 13, to drive the workpiece that holds on the workpiece box 1 by the ball-screw that servomotor connects by shaft coupling to do feed motion, the reciprocating motion of workpiece and the feed motion of workpiece be mutually motion in vertical direction, and lower slider 13 is fixed in the left front section of lathe bed 14.

Specific works is as shown in Figure 2: described lower skateboard 8-11 descends moving forward and backward of slide unit 10-12 relatively, just can the machining bearing external diameter, the movement that this structure cooperatively interacts, be the reciprocal planker of workpiece, the move left and right of the relative lower slider 13 of described lower slide unit 10-12 is to send workpiece and withdraw from workpiece, the movement that cooperatively interacts of this structure, be workpiece feeding planker, work as work sheet, the biserial circular cone, during the cylinder roller bearing inner ring raceway, utilize finger plate 7 workpiece box can be removed and turn certain angle, adjust the front and back position of the reciprocal planker of workpiece, after making bearing arrive the operating position, rely on the move left and right of described workpiece feeding planker to send and withdraw from workpiece to, (shown in the B arrow) is when processing deep groove ball bearing bear inner ring grooved railway, bidirectional angular contact thrust ball bearing blowout patche raceway groove, during the bearings such as angular contact ball bearing inner ring raceway groove and slope (once mill), can realize after can changing the trimmer of grinding carriage 3 right parts into grinding wheel arc dresser, this lathe can assemble two kinds of trimmers, be arc trimmer and end face dresser, can according to the different processing requests of bearing, conveniently change.Make same lathe possess the ability of processing work external diameter, raceway, raceway groove, expanded the use range of work of lathe, the adjustment of trimmer position, mainly be to rely on two-layer servomotor below it to drive upper slide 8 with ball-screw to move to realize that lower skateboard 9 is to be realized by the ball-screw of shaft coupling connection by servomotor with respect to the compensation of lower slide unit 10 relative to lower skateboard 9.(shown in the A arrow).

Claims

1. the grinding machine of a grinding major diameter sleeve outer surface, it comprises workpiece box, grinding carriage and trimmer bearing, it is characterized in that: be mounted with grinding carriage between described trimmer bearing and the workpiece box, described trimmer bearing is fixedly installed to the place ahead of lathe bed right part, grinding wheel arc dresser is placed on the upper slide, and the workpiece box and the finger plate that hold workpiece install and fix, and described finger plate and upper slide are fixed, lower slide unit is assemblied in the lower slider, and lower slider is fixed on the left front section of lathe bed.

2. the grinding machine of a kind of grinding major diameter sleeve outer surface according to claim 1 is characterized in that: described upper slide and lower slide unit are to adopt the guide rail routing motion.