CN201979356U

CN201979356U - Grinding head used for end face grinding

Info

Publication number: CN201979356U
Application number: CN2010202575975U
Authority: CN
Inventors: 蔡亚军
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-07-12
Filing date: 2010-07-12
Publication date: 2011-09-21
Anticipated expiration: 2020-07-12

Abstract

The utility model relates to a grinding head used for end face grinding, which comprises a grinding wheel, a grinding wheel disc, a main shaft flange, a front bearing, a motor, a main shaft, a grinding head housing and a rear bearing; the grinding wheel is connected with the main shaft flange via the grinding wheel disc; the rotor of the motor is directly mounted on the main shaft; the stator of the motor is directly mounted in the grinding head housing; the front bearing is mounted on the main shaft at the end close to the grinding wheel; the rear bearing is mounted on the other end of the main shaft. The grinding head is characterized in that: it is also provided with a rectilinear rolling guide rail with rolling balls; the rectilinear rolling guide rail is connected with the grinding head housing, while the center line of the rectilinear rolling guide rail is matched with that of the grinding head housing. The utility model can realize gapless smooth high speed motion, can keep the high operation accuracy for a long term; and achieves the advantages of high positioning and operation precision, low total cost, obvious energy saving effect, high rigidities in all directions, high feasible load, easy maintenance and high efficiency in mechanical design.

Description

A kind of bistrique that is used for cross grinding

Technical field

The utility model relates to a kind of bistrique, particularly a kind of bistrique that is used for cross grinding, it belongs to the equipment for grinding in the mechanical industry, mainly is applicable to the processing of vertical cross grinding, needs the workpiece processing on the bilateral of grinding simultaneously plane as the spring of cylinder class, bearing enclose etc.

Background technology

The structure of bistrique as shown in Figure 1 in the prior art; It mainly is made up of emery wheel 1 ', abrasive disc 2 ', spindle flange 3 ', fore bearing 4 ', rotor 5 ', motor stator 6 ', motor 7 ', main shaft 8 ', bistrique shell 9 ', rear bearing 10 ', rail plate 11 ' etc.Emery wheel 1 ' is connected with spindle flange 3 ' by abrasive disc 2 ', and motor 7 ' direct drive shaft flange 3 ' makes emery wheel 1 ' rotation at a high speed, is used for grinding.

Because adopted the structure of built-in motor 7 ' with rail plate 11 ', the axial feed stroke of emery wheel 1 ' is unrestricted substantially, goes for the grinding of roughing feed stroke.But because of having adopted large-sized rail plate 11 ', have that the gap is big, kinetic damping is big, running precision is low, easily produce shortcoming such as creep, can not repair after the easy to wear and wearing and tearing during low speed.Simultaneously, for the fluid lubrication of slide guide rail, because oil film is unsteady, the error of the kinematic accuracy of generation is unavoidable; In most cases, fluid lubrication is only limited to borderline region, and the direct friction that is produced by Metal Contact also is unavoidable; In this friction, lot of energy is wasted with frictional dissipation.

The utility model content

Technical problem to be solved in the utility model is to overcome existing above-mentioned defective in the prior art, and provide a kind of bistrique that is used for cross grinding, it can realize the axial roughing feed amount operation of emery wheel, can guarantee the running precision of emery wheel again, improve the service life of guide rail, simplify the maintenance of bistrique, fundamentally solve the problems referred to above that exist in the bistrique Grinding Process.

The technical scheme in the invention for solving the above technical problem is: this bistrique that is used for cross grinding comprises emery wheel, abrasive disc, spindle flange, fore bearing, motor, main shaft, bistrique shell and rear bearing; Emery wheel is connected with spindle flange by abrasive disc, the rotor of motor is directly installed on the main shaft, the stator of motor is directly installed in the bistrique shell, described fore bearing is installed near on the main shaft of emery wheel one end, rear bearing is installed in the other end of main shaft, it is characterized in that: also be provided with the linear rolling track of band ball, this linear rolling track is connected with described bistrique shell, and the center line of the center line of this linear rolling track and bistrique shell is complementary.Emery wheel rotation of the present utility model adopts built-in motor directly to drive, thereby reduces the intermediate link of transmission, improves mechanical efficiency, and can realize the operation of roughing feed amount; Axial feed motion is realized by linear rolling track, has made full use of the kinematic accuracy height of linear rolling track, the characteristics of long service life; Avoid low speed jerking motion, be specially adapted to the processing occasion of numerical control grinding.

As preferably, also be connected with slide block on the linear rolling track described in the utility model, described linear rolling track mounted in pairing mode is equipped with the ball of one group of position symmetry on each linear rolling track on the bistrique shell, this ball is between linear rolling track and slide block.Make that axial feed operation of the present utility model is more smooth-going, noise is lower.

As preferably, linear rolling track described in the utility model is enclosed on the outer surface of bistrique shell, it inboardly is connected with the bistrique shell; Described linear rolling track is circular overall structure.As another kind of embodiment of the present utility model, it also can make linear rolling track axially carry out feed motion, and has all advantages of using linear rolling track.

As preferably, a kind of in the angular contact ball bearing that the bearing near emery wheel one end described in the utility model is a mounted in pairs or taper roll bearing or the thrust bearing can bear axially and radial load simultaneously; The rear bearing of the other end is a plain bearing, can bear radial load, and axially delocalization can compensate the axial displacement that the main shaft thermal deformation causes.

The utility model compared with prior art has the following advantages and effect: reasonable in design, simple, running precision height, long service life; And energy-saving consumption-reducing, totle drilling cost is low, the transmission efficiency height.

Its good characteristic is mainly reflected in following aspect after adopting linear rolling track: 1, the precision height of location and operation: linear rolling track can make coefficient of friction be reduced to 1/50 of rail plate, because dynamic friction and confficient of static friction differ very little, motion flexibly, can make driving torque reduce 90%, therefore, the lathe positioning accuracy can be set to the ultra micro meter level; The special unit design of slide block and linear rolling track makes linear rolling track can bear the load that waits all directions up and down simultaneously, moves more smooth-goingly, and noise is lower.2, totle drilling cost is low, energy-saving effect is obvious: because linear rolling track frictional resistance is little, be specially adapted to the reciprocating motion starting repeatedly, stop, can make required power source and Poewr transmission mechanism miniaturization, alleviated weight, make the lathe required electric power reduce by 90%, have energy-conservation significantly effect.3, can realize not having gap high-speed motion trippingly: linear rolling track is because frictional resistance is little, and therefore heating is few, can realize the high-speed motion of lathe, and the operating efficiency of lathe improves 20～30%.But the high accuracy of 4 long term maintenance operation: linear rolling track is because friction energy-dissipating is little, and the also corresponding minimizing of the wearing and tearing of rolling surface is so can make linear rolling track be in the high accuracy state for a long time; Simultaneously, owing to use lubricating oil also seldom, in most cases only need grease lubrication just enough, this makes and is all becoming very easy aspect the lubrication System Design of lathe and the working service.5, all directions all have high rigidity: be microgap or negative clearance between linear rolling track and slide block, therefore can greatly improve the integral rigidity and the kinematic accuracy of guide rail.6, allowable load is big: slide block and linear rolling track closely cooperate in aggregates, and rigidity is big, and therefore the four directions has bigger load bearing capacity to waiting load.7, maintaining is easy: the maintenance period of linear rolling track is long, can use at particular surroundings such as dust, bad weather with under the water environment; Design of modularization more can be changed slide block or linear rolling track separately, and its design and fabrication can adopt general standardized component, and interchangeability is good, is convenient to the maintenance and the reparation of equipment.8, Machine Design high efficiency: thus because of producing strain, the spherical steel ball in the linear rolling track absorbs the flatness requirement that the installed surface error can reduce guide rail installation base surface, reduce machining cost; The characteristics that absorb after the perpendicularity that linear rolling track produces when having the basis processing of mounting guide rail and assembling, flatness, the depth of parallelism equal error equalization.Therefore adopt linear rolling track can improve the efficient of Machine Design greatly, reduce equipment cost.

Adopt built-in motor to drive its good characteristic of emery wheel and be mainly reflected in following aspect: 1, rotating accuracy height: as all being to be rigidly connected between the rotor of drive source and main shaft, flange, the emery wheel, do not have middle transmission link, improved the whole rotating accuracy of bistrique greatly.2, frame for movement is simple: adopted the bistrique of built-in motor, simplified frame for movement greatly, helped optimizing the design of frame for movement, reduced equipment manufacturing cost.3, machinery driving efficiency height: transmission link in the middle of not existing, the whole mechanical efficiency of bistrique improves greatly, helps energy-saving consumption-reducing.

Description of drawings

Fig. 1 is the structural representation of bistrique in the prior art.

Fig. 2 is the structural representation of the utility model embodiment 1.

Fig. 3 is the A-A sectional structure schematic diagram of Fig. 2.

Fig. 4 is the structural representation of the utility model embodiment 2.

Fig. 5 is the B-B sectional structure schematic diagram of Fig. 4.

The specific embodiment

Embodiment 1:

Referring to Fig. 2-Fig. 3, present embodiment mainly is made up of the linear rolling track 12 and the slide block 13 of emery wheel 1, abrasive disc 2, spindle flange 3, fore bearing 4, rotor 5, motor stator 6, motor 7, main shaft 8, bistrique shell 9, rear bearing 10, band ball 14.

In the present embodiment, emery wheel 1 is connected with spindle flange 3 by abrasive disc 2, and rotor 5 is directly installed on the main shaft 8, and motor stator 6 is directly installed in the bistrique shell 9, described fore bearing 4 is installed near on the main shaft 7 of emery wheel 1 one ends, and rear bearing 10 is installed in the other end of main shaft 8; One side of the linear rolling track 12 of band ball 14 is connected with described bistrique shell 9, and opposite side is connected with apparatus body; And the center line of the center line of this linear rolling track 12 and bistrique shell 9 is complementary.

Also be connected with slide block 13 on the linear rolling track 12, ball 14 is between linear rolling track 12 and slide block 13; Described linear rolling track 12 mounted in pairing mode are on bistrique shell 9, and in the present embodiment, the linear rolling track 12 of pairing is to go up linear rolling track 121 and following linear rolling track 122; And, the ball 141,142 of one group of position symmetry is installed on each linear rolling track 12.

A kind of in the angular contact ball bearing that described fore bearing 4 near emery wheel 1 one ends is a mounted in pairs or taper roll bearing or the thrust bearing; The rear bearing 10 of the other end is a plain bearing, as being deep groove ball bearing etc.

During use, rotor 5 direct drive shaft flanges 3 make emery wheel 1 rotation at a high speed, are used for grinding.

Embodiment 2:

Referring to Fig. 4-Fig. 5, present embodiment mainly is made up of emery wheel 1, abrasive disc 2, spindle flange 3, fore bearing 4, rotor 5, motor stator 6, motor 7, main shaft 8, bistrique shell 9, rear bearing 10 and monoblock type linear rolling track 15.

As another kind of embodiment, linear rolling track described in the utility model also can be a monoblock type linear rolling track 15, and it is enclosed on the bistrique shell 9, is a large-sized circular overall structure; Ball 14 is distributed on the monoblock type linear rolling track 15; The inboard of this monoblock type linear rolling track 15 is connected with bistrique shell 9, and the outside is connected with apparatus body.

Other structure is identical with embodiment 1 with occupation mode, no longer narration.

Above content described in this specification only is to the explanation of the utility model structure example; And the title that the utility model parts are got also can be different, allly conceive equivalence or the simple change that described structure, feature and principle are done according to the utility model patent, are included in the protection domain of the utility model patent.

Claims

1. a bistrique that is used for cross grinding comprises emery wheel, abrasive disc, spindle flange, fore bearing, motor, main shaft, bistrique shell and rear bearing; Emery wheel is connected with spindle flange by abrasive disc, the rotor of motor is directly installed on the main shaft, the stator of motor is directly installed in the bistrique shell, described fore bearing is installed near on the main shaft of emery wheel one end, rear bearing is installed in the other end of main shaft, it is characterized in that: also be provided with the linear rolling track of band ball, this linear rolling track is connected with described bistrique shell, and the center line of the center line of this linear rolling track and bistrique shell is complementary.

2. the bistrique that is used for cross grinding according to claim 1, it is characterized in that: also be connected with movable slider on the described linear rolling track, described linear rolling track mounted in pairing mode is on the bistrique shell, the ball of one group of position symmetry is installed on each linear rolling track, and this ball is between linear rolling track and slide block.

3. the bistrique that is used for cross grinding according to claim 1 is characterized in that: described linear rolling track is enclosed on the outer surface of bistrique shell, it inboardly is connected with the bistrique shell; Described linear rolling track is circular overall structure.

4. according to claim 1 or the 2 or 3 described bistriques that are used for cross grinding, it is characterized in that: a kind of in the angular contact ball bearing that described bearing near emery wheel one end is a mounted in pairs or taper roll bearing or the thrust bearing.