CN206326496U - A kind of high precision balance type sapphire twin grinder - Google Patents

Abstract

A kind of high precision balance type sapphire twin grinder, including underframe (12), gantry upright post (1), lower disc system (13), upper disc system (10)；Upper disc system is set on splined shaft (6) with lower disc system and can rotated coaxially；The balanced type loading device being sleeved on splined shaft is provided with above upper disc system；The planet-gear speed reducer (5) that output shaft is extended downwardly is installed on gantry upright post crossbeam, the planet-gear speed reducer gear of output shaft lower end is engaged with being set in the gear (11) of splined shaft bottom；In gantry upright post crossbeam while being provided with cross lead screw (16) and a pair of linear slide rails (21), the nut seat being fastenedly connected with the saddle (15) slided along linear slide rail level is fitted with screw mandrel, the servomotor (18) that output shaft is connected with screw mandrel is installed in cross rail outer, saddle lower end is connected with horizontal knife bar (19), and horizontal knife bar front end is provided with cutter chuck (20) and up and down two width cutters (14).The utility model is simple in construction, dependable performance, easily operated control.

Description

A kind of high precision balance type sapphire twin grinder

Technical field

The utility model is related to sapphire grinding machine technical field.

Background technology

Existing sapphire twin grinder, in high-precision process of lapping on disk gravitational equilibrium be a technical difficulty Topic, upper disc system influences to need control system to compensate its gravity upper disk Stress control in process due to gravity, increases Twin grinding controls difficulty, causes to adversely affect product quality.Existing solution substantially has two kinds：One is in grinding When data correction is done to upper disk pressure by control system, with ensure grinding pressure meet product grinding demand.Two be in upper disk Increase counterweight counterweight mode outside system and balance the influence of disc system gravity.Upper disc system is less than in grinding pressure with upper type, or When upper disc system gravity size and Orientation changes, balance adjustment difficulty can increase therewith, so as to influence grinding precision.Turning To high-precision grinding step, upper lower burrs finishing is equally a technical problem, and card finishing up and down needs to dismantle mill mostly Disk, in grinding machine or special fixture finishing card, is difficult to control to assembly precision, finishing process is complicated, repairs the cycle when installing again It is long, inefficiency.Existing solution substantially has two kinds, and a kind of is to make simple frock clamp by the mill up and down disassembled Disk transports trimming device according to frock adjustment finishing card, is repaiied installed in the fixture of grinder fixing end or using measurement apparatus It is whole that the upper lower millstone installation site of positioning is installed.Another is to make complex frock clamp, will when card needs finishing Chuck apparatus is installed on twin grinder, carries out card dressing operation, and the finishing of upper lower burrs needs to use different fixtures respectively Trimming device is positioned, due to whole process to complete twice, it is difficult to ensure that card top and bottom precision uniformity, and it is inefficient, To ensure that workpiece grinding precision also needs to correct again.

The content of the invention

The purpose of this utility model is to overcome the problem of above-mentioned prior art is present there is provided a kind of simple in construction, performance It is reliable, easy to the high precision balance type sapphire twin grinder of operational control.

To achieve the above object, the technical solution of the utility model is as follows：

A kind of high precision balance type sapphire twin grinder, including underframe, be fixedly installed on underframe gantry upright post, It is installed on the lower disc system on underframe and between two columns of gantry upright post, is installed on gantry upright post top crossbeam stage casing Upper disc system；Upper disc system is set on splined shaft with lower disc system and can rotated coaxially, upper disk and the lower wall system of upper disc system The lower wall card of system is relative；The balanced type loading device being sleeved on splined shaft, the balance are provided with above upper disc system Formula loading device includes the upper junction plate, lower connecting plate, gear being sequentially sleeved on from top to bottom on splined shaft；Splined shaft and upper company Fishplate bar is fastenedly connected and passes through the centre bore of lower connecting plate；Cylinder, the top of cylinder are symmetrically installed with lower connecting plate lower end both sides Bar is fastenedly connected in the screw of upper junction plate both sides by being fitted in the nut on bar top, is provided with and is matched somebody with somebody on the outside of the cylinder on both sides Heavy oil cylinder pressure, the push rod of counterweight oil hydraulic cylinder is fastenedly connected the screw in upper junction plate both sides again by the nut for being fitted in bar top In；The rear side of lower connecting plate 7 is fixedly connected on the crossbeam of gantry upright post；Output shaft is installed on gantry upright post crossbeam downward The planet-gear speed reducer of crossbeam is extended across, the planet-gear speed reducer gear of output shaft lower end is with being set in splined shaft bottom Gear is engaged, and is covered with closing lid in the power train of planet-gear speed reducer gear and gear, closing lid bottom is provided with Level tune Holder assembly；A cross lead screw is provided with the front on gantry upright post top cross-bar one side and is located at respectively above and below screw mandrel a pair The nut seat being fastenedly connected with the saddle slided along linear slide rail level is fitted with linear slide rail, screw mandrel, on gantry upright post top Portion's cross rail outer is provided with servomotor, and the output shaft of servomotor is connected with screw mandrel by shaft coupling, and saddle lower end, which is fixed, to be connected The horizontal knife bar that can be stretched between lower and upper disk is connected to, horizontal knife bar front end is provided with cutter chuck, in the upper of cutter chuck Lower two ends be separately installed with above and below two width cutters.

Level tune holder assembly described in the utility model is included in three that closing lid bottom part ring is angularly set around splined shaft Level tune seat.

The utility model is anchored on the splined shaft of upper junction plate by upper end and the upper disk of synchronous axial system is driven by splined shaft System, by the way that under the oil pressure effect of counterweight oil hydraulic cylinder and its push rod, balance upper junction plate, splined shaft and its synchronization driven turn The Action of Gravity Field of the components such as dynamic upper disc system.The axially position of upper disc system is adjusted by cylinder and its push rod pressure.Upper disk system The Level tune of system is completed by three Level tune seats, good balance effect.

The utility model by knife bar fix a cutting tool chuck institute clamping two width cutters up and down be placed in cantilever fashion upper disk and under On the outside of workspace between disk card, when repairing card, the upper disk of control system control rises, then driven by servomotor Screw systems drag saddle, by be anchored on saddle lower end knife bar horizontal movement is supreme, between lower card, upper disk and lower wall are in control Rotated under the control of system processed, with servomotor drive transverse movement cutter collective effect be respectively completed to it is upper, The finishing of lower card.Reach and utilized in the case of disk and lower wall is not dismantled the rotary motion of itself of upper and lower disk to upper and lower card Carry out efficiently quickly finishing.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model；

Fig. 2 is dimensional structure diagram of the present utility model；

Fig. 3 is the cut-away view that A portions in Fig. 1 take away saddle.

Embodiment

High precision balance type sapphire twin grinder as shown in Figure 1, Figure 2, Figure 3 shows, including gantry upright post 1, with heavy oil Cylinder pressure 2, cylinder 3, upper junction plate 4, planet-gear speed reducer 5, splined shaft 6, lower connecting plate 7, closing lid 8, Level tune holder assembly 9, Upper disc system 10, gear 11, underframe 12, lower disc system 13, cutter 14, saddle 15, screw mandrel 16, shaft coupling 17, servomotor 18, Knife bar 19, cutter chuck 20, linear slide rail 21, sliding block 22.Underframe 1 is placed in ground, and by the anchor nut guarantor located at its bottom surface Its level is demonstrate,proved, gantry upright post 4 is fixedly installed on underframe, lower disc system 13 is installed on underframe and is located at the two of gantry upright post and stands Between post, upper disc system 10 is located at gantry upright post top cross-bar stage casing.Upper disc system 10 is set in spline with lower disc system 13 Can be rotated coaxially on axle 6, the upper disk of upper disc system is relative with the lower wall card of lower disc system, sapphire be placed in disk and lower wall it Between polished.It is provided with the upper top of disc system 10 in the balanced type loading device being sleeved on splined shaft 6, the balanced type Disk device includes the upper junction plate 4, lower connecting plate 7, gear 11 being sequentially sleeved on from top to bottom on splined shaft；Splined shaft and upper company Fishplate bar 4 is fastenedly connected and passes through the centre bore of lower connecting plate 7；Cylinder 3, cylinder 3 are symmetrically installed with the lower end both sides of lower connecting plate 7 Push rod be fastenedly connected by being fitted in the nut on bar top in the screw of the both sides of upper junction plate 4, pacify in the outside of cylinder 3 on both sides Equipped with counterweight oil hydraulic cylinder 2, the push rod of counterweight oil hydraulic cylinder 2 is fastenedly connected in upper junction plate two again by the nut for being fitted in bar top In the screw of side；The rear side of lower connecting plate 7 is fixedly connected on the crossbeam of gantry upright post 1；It is provided with gantry upright post crossbeam Output shaft extends downward and through the planet-gear speed reducer 5 of crossbeam, and the planet-gear speed reducer gear of output shaft lower end is with being set in The gear 11 of splined shaft bottom is engaged, and closing lid 8 is covered with the power train of planet-gear speed reducer gear and gear 11, at closing lid bottom Portion is provided with Level tune holder assembly 9, three angularly set around splined shaft 6 in the bottom part ring of closing lid 8 during Level tune holder assembly 9 Individual Level tune seat.A piece cross lead screw 16 is installed in the front on the top cross-bar one side of gantry upright post 4 and is located at screw mandrel respectively The spiral shell being fastenedly connected with the saddle 15 slided along the level of linear slide rail 21 is fitted with a pair of linear slide rails 21 up and down, screw mandrel 16 Female seat, is provided with servomotor 18 on the outside of gantry upright post top cross-bar, and output shaft and the screw mandrel 16 of servomotor pass through shaft coupling Device 17 is connected, the lower end of saddle 15 be fixedly connected with can stretch to sapphire twin grinder lower disc system 13 and upper disc system 14 it Between horizontal knife bar 19, the horizontal front end of knife bar 19 is provided with cutter chuck 20, is respectively mounted in the upper and lower ends of cutter chuck 20 Two width cutter 14 above and below having.

During utility model works, the sapphire that will be polished is placed in tool disk, is placed in the upper disk of disc system with Between the lower wall of disc system, tool disk does revolution motion in lower wall, while being produced from transhipment under upper disk and the effect of lower wall pressure Dynamic, wherein upper disc system is by splined shaft and the application pressure of the upper disk of hydraulic cylinder loading system control, splined shaft and cylinder can With effectively by maintain and adjust upper disk and lower wall the depth of parallelism and gap to prevent from turning over or wrong disk phenomenon so that ensure plus The size of the planarity requirements of load and accurate controlled loading stock removal.Sapphire motion in tool disk is a kind of synthesis fortune It is dynamic, complete polishing work in surface in the case where the different rotating speeds of upper lower burrs coordinate, while lower disc system does not compare at the same speed, and it is inside and outside Rotating is enclosed, and then optimizes polishing process.In progress during the card finishing of disk and lower wall, knife bar is fixed a cutting tool chuck institute clamping Two width cutters are placed in workspace outside between upper and lower card in cantilever fashion up and down, and when repairing card, upper disk surface is by upper disk control System control processed is risen, then drags saddle by the screw systems that servomotor is driven, and will be anchored on the knife bar water of saddle lower end Flat to move between upper and lower card, upper disk and lower wall rotate under control of the control system, are driven with servomotor The cutter collective effect of transverse movement is respectively completed the finishing to upper and lower card.Reach in the case of disk and lower wall is not dismantled Quickly finishing is carried out efficiently to upper and lower card using the rotary motion of itself of upper and lower disk, the finishing to upper and lower card is completed Work.

Claims (2)

1. a kind of high precision balance type sapphire twin grinder, it is characterised in that including underframe (12), be fixedly installed in underframe On gantry upright post (1), be installed on underframe and positioned at gantry upright post two columns between lower disc system (13), be installed on dragon The upper disc system (10) in door pillar top crossbeam stage casing；Upper disc system is set in lower disc system can be coaxial on splined shaft (6) Rotate, the upper disk of upper disc system is relative with the lower wall card of lower disc system；It is provided with above upper disc system and is sleeved on splined shaft On balanced type loading device, the balanced type loading device includes sequentially being sleeved on upper junction plate on splined shaft from top to bottom (4), lower connecting plate (7), gear (11)；Splined shaft is fastenedly connected and passed through the center of lower connecting plate (7) with upper junction plate (4) Hole；Cylinder (3) is symmetrically installed with lower connecting plate lower end both sides, the push rod of cylinder is fastenedly connected by being fitted in the nut on bar top In the screw of upper junction plate (4) both sides, counterweight oil hydraulic cylinder (2), the top of counterweight oil hydraulic cylinder are installed on the outside of the cylinder on both sides Bar is fastenedly connected in the screw of upper junction plate both sides again by the nut for being fitted in bar top；The rear side of lower connecting plate (7) is consolidated Surely it is connected on the crossbeam of gantry upright post；The planet that output shaft extends downward and through crossbeam is installed on gantry upright post crossbeam Reductor (5) is taken turns, the planet-gear speed reducer gear of output shaft lower end is engaged with being set in the gear (11) of splined shaft bottom, is expert at The power train of star wheel reducer gear and gear is covered with closing lid (8), and Level tune holder assembly (9) is provided with closing lid bottom； A pair of lines that a cross lead screw (16) is provided with the front on gantry upright post top cross-bar one side and is located at respectively above and below screw mandrel Property slide rail (21), the nut seat being fastenedly connected with the saddle (15) slided along linear slide rail (21) level is fitted with screw mandrel, Servomotor (18) is installed, output shaft and the screw mandrel (16) of servomotor pass through shaft coupling on the outside of gantry upright post top cross-bar (17) connect, saddle (15) lower end is fixedly connected with before the horizontal knife bar (19) that can be stretched between lower and upper disk, horizontal knife bar End is provided with cutter chuck (20), the two width cutter (14) above and below the upper and lower ends of cutter chuck are separately installed with.

2. the balanced type loading device of a kind of sapphire twin grinder according to claim 1, it is characterised in that described Level tune holder assembly (9) is included in three Level tunes seat that closing lid (8) bottom part ring is angularly set around splined shaft (6).