CN202461708U - Coaxiality adjusting mechanism of machine tool rest bracket and spindle - Google Patents

Abstract

The utility model discloses a coaxiality adjusting mechanism of a machine tool rest bracket and a spindle, wherein a transmission shaft mounting hole is arranged in the rest bracket and has a center line, an electric spindle is positioned at the right side of a seat, an upper horizontal plate and a lower horizontal plate are symmetrically arranged at the top surface and the lower surface of the seat, an upper adjusting screw and a lower adjusting screw respectively penetrate through the screw holes of the upper and lower horizontal plates, the rest bracket is positioned between the upper and lower horizontal plates and tightly pressed by the upper and lower adjusting screws; and the combination surfaces of both the rest bracket and the seat are inclined planes, the inclined planes are arranged towards the electric spindle, the included angle of the inclined planes and the axis of the electric spindle is alpha, and a fastening screw penetrates through a through hole in the rest bracket and then is fixedly connected with the seat. The coaxiality adjusting mechanism can realize the high coaxiality of the center line of the transmission shaft mounting hole of the rest bracket and the axis of the electric spindle through micro adjusting the upper and lower adjusting screws and the inclined planes, has high economy, lower technical requirements on assembly workers and a simple structure, is easy to implement, not only is applicable to a gear grinding machine but also can be applied on a gear hobbing machine.

Description

Lathe bracket and main shaft axiality guiding mechanism

Technical field

The utility model relates to a kind of machine tool component, relates in particular to the bracket and the electric main shaft axiality guiding mechanism of lathe.

Background technology

At present; The bracket of lathe is directly installed on the pedestal, and the axiality of the center line of bracket power transmission shaft installing hole and electric spindle axis line require very high, and they the high-precision coaxial degree is main now between the two adopts two kinds of methods to realize: first method realizes through high-precision processing; This method is higher to the required precision of process equipment; Processing cost is also very high, and economy is relatively poor, and general producer also can't reach.

Second method then relies on the assembler that the faying face of bracket and pedestal is carried out scraping and guarantees; This method requires very high to assembler's technical ability; And scraping is time-consuming, effort, and operating efficiency is very low, is badly in need of solving the technological deficiency of above-mentioned two kinds of methods for this reason.

The utility model content

The utility model technical problem to be solved is to provide a kind of good economy performance, and assembler's technical ability is required lower lathe bracket and main shaft axiality guiding mechanism.

The technical scheme of the utility model is following: a kind of lathe bracket and main shaft axiality guiding mechanism; Comprise bracket (1), electric main shaft (2) and pedestal (3); Wherein have power transmission shaft installing hole (1a) on the bracket (1); This power transmission shaft installing hole (1a) has center line (1b), and bracket (1) is positioned at the front side of pedestal (3), on the right of this bracket (1) said electric main shaft (2) is set; It is characterized in that: be symmetrical set upper and lower level board (4,5) in top, the bottom surface of said pedestal (3); On this upper and lower level board in the vertical screw that is provided with respectively correspondence be equipped with upper and lower adjustment screw (6,7), said bracket (1) is positioned between the upper and lower level board (4,5), and is held out against by this upper and lower adjustment screw (6,7); Both surfaces of combining of said bracket (1) and pedestal (3) are inclined-plane (8); This inclined-plane is provided with towards said electric main shaft (2); Angle between the axial line (2a) of this inclined-plane (8) and electric main shaft (2) is α; And 0 °＜α≤5.7 °, trip bolt (9) is fixedly connected with pedestal (3) after passing the via hole on the bracket (1).

The utility model is on the basis of traditional structure; Be symmetrical set upper and lower level board (4,5) in top, the bottom surface of said pedestal (3); On this upper and lower level board in the vertical screw that is provided with respectively correspondence be equipped with upper and lower adjustment screw (6,7); Said bracket (1) is positioned between the upper and lower level board (4,5), and is held out against by this upper and lower adjustment screw (6,7); Both surfaces of combining of said bracket (1) and pedestal (3) are inclined-plane (8); This inclined-plane is provided with towards said electric main shaft (2); Angle between the axial line (2a) of this inclined-plane (8) and electric main shaft (2) is α; And 0 °＜α≤5.7 °, trip bolt (9) is fixedly connected with pedestal (3) after passing the via hole on the bracket (1).During installation, at first bracket (1) is installed on the pedestal (3), so just can roughly guarantees the center line of bracket power transmission shaft installing hole and the axiality between the electric spindle axis line; Then, can be through rotating the height of upper and lower adjustment screw trace adjustment bracket (1), and trace slides along the inclined-plane on the pedestal (3) can to let bracket (1); The bar portion of trip bolt this moment (9) trace in the via hole of bracket (1) moves, so just can make between center line and the electric spindle axis line of bracket power transmission shaft installing hole to reach very high axiality, and machining accuracy that need not again need be very high as former; Perhaps need carry out scraping to the faying face of bracket and pedestal (3); Overcome the defective of two kinds of conventional methods thus in the lump, not only can suitably reduce the machining accuracy of bracket and pedestal faying face, good economy performance; And require lower to assembler's technical ability; And simple in structure, easy to implement, be not only applicable to gear grinding machines, but also can be used on the gear-hobbing machine.

For locking, special on said going up on the adjustment screw (6) of level board (4) top be set with upper locking nut (10), and be set with lower locking nut (11) on the following adjustment screw (7) of said lower horizontal board (5) below.

As preferably, said angle is 3 °.

Beneficial effect: the utility model can be adjusted between center line and the electric spindle axis line that upper and lower adjustment screw and inclined-plane make bracket power transmission shaft installing hole through trace and reach very high axiality; And need not as in the past, need very high machining accuracy again, and perhaps need carry out scraping to the faying face of bracket and pedestal, overcome the defective of two kinds of conventional methods thus in the lump; Not only can suitably reduce the machining accuracy of bracket and pedestal faying face; Good economy performance, and lower to assembler's technical ability requirement, and simple in structure, easy to implement; Be not only applicable to gear grinding machines, but also can be used on the gear-hobbing machine.

Description of drawings

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

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is that the A-A of bracket 1 and pedestal 3 among Fig. 1 is to amplification view;

Fig. 4 is that the B-B of bracket 1 and pedestal 3 among Fig. 1 is to amplification view.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described further:

Shown in Fig. 1～4; The utility model mainly by bracket 1, electric main shaft 2, pedestal 3, go up level board 4, lower horizontal board 5, on adjust screw 6, adjust screw 7, trip bolt 9, upper locking nut 10 and lower locking nut 11 etc. down and constitute; Wherein the end face of pedestal 3 is installed with level board 4 through two screws; And last level board 4 is anterior unsettled, vertically has 2 screws (not marking among the figure) in the front portion of last level board 4, in this screw, is equipped with adjustment screw 6.For locking, on last adjustment screw 6, be set with said upper locking nut 10, this upper locking nut 10 is positioned at the top of level board 4.Two screws of underrun in said base 3 are installed with lower horizontal board 5; This lower horizontal board 5 is symmetrical set with the said level board 4 of going up; And the front portion of last level board 4 also vertically offers 2 screws (not marking among the figure), in this screw, is equipped with the said screw 7 of adjustment down.For locking, under adjust and be set with said lower locking nut 11 on the screw 7, this lower locking nut 11 is positioned at the below of lower horizontal board 5.

Can find out that like Fig. 1～4 said bracket 1 upper edge axial line has power transmission shaft installing hole 1a, this power transmission shaft installing hole 1a has center line 1b.Simultaneously, above-mentioned bracket 1 is located at the front side of pedestal 3, and between last level board 4 and lower horizontal board 5, and is held out against with adjustment screw 7 down by the said adjustment screw 6 of going up.And both surfaces of combining of said bracket 1 and pedestal 3 are inclined-plane 8, and this inclined-plane 8 is provided with towards said electric main shaft 2, and electric main shaft 2 is positioned at the right of bracket 1, and electric main shaft 2 has axial line 2a.Angle between the axial line 2a of above-mentioned inclined-plane 8 and electric main shaft 2 is α, and 0 °＜α≤5.7 °, is preferably 3 °.Shown in accompanying drawing 2, α is the angle on straight line L1 and inclined-plane 8, and the axial line 2a of straight line L1 and electric main shaft 2 parallels.

In addition; Have 3 via holes that supply trip bolt 9 to pass respectively in the upper and lower part of said bracket 1; Said trip bolt 9 pass behind this via hole with pedestal 3 on screw be fixedly connected, and the via hole matched in clearance on the shaft of this trip bolt 9 and the bracket 1 so both was installed in bracket 1 on the pedestal 3; Can be convenient to finely tune the position of bracket 1 again, so that transfer the power transmission shaft installing hole center line of bracket 1 and the axial line 1a of electric main shaft 1 to reach very high axiality.In order to prevent the trip bolt 9 whole through holes that pass on the bracket 1; Guarantee the reliable purpose that bracket 1 is installed; The spy respectively establishes a liner plate 12 in the upper and lower part of bracket 1 leading flank; The position of corresponding said trip bolt 9 has through hole on this liner plate 12, and the diameter of the aperture of this through hole and trip bolt 9 shafts adapts, and liner plate 12 is sleeved on the trip bolt 9.After adjusting bracket 1, on said liner plate 12, bracket 1 and pedestal 3, join the brill installing hole, in the installing hole that alignment pin 13 inserts on liner plate 12, bracket 1 and the pedestals 3, all the other structures and the prior art of the utility model are identical, do not do at this and give unnecessary details.

The above is merely the preferred embodiment of the utility model; It is not restriction with the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.

Claims (3)

1. lathe bracket and main shaft axiality guiding mechanism; Comprise bracket (1), electric main shaft (2) and pedestal (3), wherein have power transmission shaft installing hole (1a) on the bracket (1), this power transmission shaft installing hole (1a) has center line (1b); And bracket (1) is positioned at the front side of pedestal (3); On the right of this bracket (1) said electric main shaft (2) is set, it is characterized in that: be symmetrical set upper and lower level board (4,5) in top, the bottom surface of said pedestal (3), on this upper and lower level board in the vertical screw that is provided with respectively correspondence be equipped with upper and lower adjustment screw (6,7); Said bracket (1) is positioned between the upper and lower level board (4,5), and is held out against by this upper and lower adjustment screw (6,7); Both surfaces of combining of said bracket (1) and pedestal (3) are inclined-plane (8); This inclined-plane is provided with towards said electric main shaft (2); Angle between the axial line (2a) of this inclined-plane (8) and electric main shaft (2) is α; And 0 °＜α≤5.7 °, trip bolt (9) is fixedly connected with pedestal (3) after passing the via hole on the bracket (1).

2. lathe bracket according to claim 1 and main shaft axiality guiding mechanism; It is characterized in that: going up on the adjustment screw (6) of said upward level board (4) top is set with upper locking nut (10), and is set with lower locking nut (11) on the following adjustment screw (7) of said lower horizontal board (5) below.

3. lathe bracket according to claim 1 and main shaft axiality guiding mechanism is characterized in that: said angle is 3 °.

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