CN106078309A - Ball-screw follow-up supporting device - Google Patents

Abstract

The invention relates to a ball screw follow-up support device, which includes a ball screw, a motor, a bracket, a slide table and a follow-up support assembly, etc., and the follow-up support assembly includes a slide rail, a support seat, a slide seat, a follow-up even board. The support seat can slide on the slide rail through the slide seat; the follow-up connecting plate is installed on the inner side of the support seat through the pin shaft, and the fixed pin is installed on the side of the machine bed, and the inclined surface of the follow-up connecting plate rests on the fixed pin. Detents at sides. The follow-up connecting plate and the support seat on the follow-up support assembly can move laterally with the support to carry out follow-up support action. It has reasonable composition, simple assembly, convenient operation and reliable work, and can realize the follow-up support for the ultra-long machine tool ball screw, and then fundamentally solve the influence of bending deformation on the transmission accuracy of the ball screw.

Description

Ball screw follower support device

technical field

The invention relates to a mechanical support device, in particular to a ball screw follower support device.

Background technique

We know that the ultra-long machine tool ball screw lacks support devices and is prone to bending deformation. Most of the current ball screw support devices are fixed supports and cannot be followed, which affects the accuracy of machine tool transmission. So far, there is no literature report on a special-purpose ball screw follower support device.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a ball screw with reasonable structure, simple assembly, convenient operation and use, reliable operation, and the ability to realize follow-up support for super-long machine tool ball screws Follow-up support device.

The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a ball screw follow-up support device, which includes a ball screw, a motor, a bracket, and a slide table, and the ball screw is installed on the side of the machine bed through a support, The motor is installed on one end of the ball screw, and is connected with the ball screw, the ball screw is threadedly matched with the bracket, and the slide table is installed on the bracket, and it is characterized in that: a follow-up support assembly is installed below the ball screw, and the follower The dynamic support assembly includes a slide rail, a support seat, a slide seat, and a follower connecting plate, the slide rail is installed on the side of the machine bed through an L-shaped support, the support seat is installed on the slide seat, and the slide seat slides on the slide rail; The follower connecting plate is installed on the inner side of the support seat through a pin shaft, and the follower connecting plate is provided with a rectangular slot and an inclined surface, and a fixed pin is installed on the side of the machine bed, and the inclined surface of the follower connecting plate rests on the fixed pin ; The inner side of the bracket is provided with bayonet pins; the motor drives the ball screw to rotate, and the slide table moves laterally with the bracket. The moving connecting plate breaks away from the fixed pin, and the following moving connecting plate and support base move laterally with the bracket to carry out follow-up support action; When the inclined surface is in contact with the fixed pin, as the inclination angle increases gradually, the bayonet pin breaks away from the rectangular slot of the follower connecting plate, and the support seat stops moving, completing the detachment action of the follower support.

Further, the follow-up support assemblies are divided into two groups, and the two sets of follow-up support assemblies are located on the front and rear sides of the bracket, and are symmetrically installed under the ball screw.

Further, the upper part of the support seat is provided with a semicircular groove, through which the ball screw is supported.

A pin shaft is installed on the support seat, and a circular hole matched with the pin shaft is arranged at the rear end of the follower connecting plate, and the follower link plate can rotate around the pin shaft. The front end of the follower connecting plate is provided with a rectangular card slot and an inclined surface. The bayonet pin can enter the rectangular bayonet groove through the cutting slope. A fixed pin is installed on the side of the bed of the machine tool, and the inclined surface of the follower connecting plate rests on the fixed pin.

The present invention adopts the above-mentioned composition structure, and a follow-up support assembly is installed under the ball screw, and the follow-up connecting plate and the support seat on the follow-up support assembly can move laterally with the bracket to perform follow-up support actions. Compared with the prior art, the present invention has reasonable composition, simple assembly, convenient operation and reliable operation, and can realize follow-up support for super-long machine tool ball screws, thereby fundamentally solving the influence of bending deformation on the transmission accuracy of ball screws .

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings.

Fig. 1 is a schematic diagram of the composition and structure of the present invention.

FIG. 2 is a schematic right view of FIG. 1 .

Fig. 3 is a schematic cross-sectional view taken along line A-A of Fig. 2 .

The labels in the figure are: 1. Motor, 2. Support, 3. Ball screw, 4. Support seat, 5. Follow-up connecting plate, 6. Fixed pin, 7. Bracket, 8. Slide rail, 9. Machine tool Bed, 10. pin shaft, 11. bayonet pin, 12. slide seat, 13. slide table, 14. L type support.

detailed description

It can be seen from Fig. 1, Fig. 2 and Fig. 3 that a ball screw follow-up support device includes a ball screw 3, a motor 1, a bracket 7, a slide table 13 and the like. The ball screw 3 is installed on the side of the machine bed 9 through the support 2, the motor 1 is installed on one end of the ball screw 3, and is connected with the ball screw, the ball screw 3 is screwed with the support 7, and the slide table 13 is installed on the on bracket 7. In this way, the ball screw 3 is integrated with the slide table 13 through the bracket 7 to drive the slide table 13 to move. The above-mentioned composition structure is basically the same as that of the prior art, and will not be repeated here.

The present invention is characterized in that: a follow-up support assembly is installed below the ball screw 3 . The follow-up support assembly includes a slide rail 8, a support seat 4, a slide seat 12, a follow-up connecting plate 5, and the like. The slide rail 8 is installed on the side of the machine bed 9 through an L-shaped support 14 . The support base 4 is installed on the sliding seat 12 , and the sliding seat 12 slides on the slide rail 8 . A pin shaft 10 is installed on the inner side of the support seat 4 . The rear end of the follower connecting plate 5 is provided with a circular hole cooperating with the pin shaft 10 , and the follower link plate 5 can rotate around the pin shaft 10 . The front end of the follower connecting plate 5 is provided with a rectangular slot and an inclined surface. A fixed pin 6 is installed on the side of the bed 9 of the machine tool, and the inclined surface of the follower connecting plate 5 rests on the fixed pin 6 ; The bayonet pin 11 can enter the rectangular bayonet groove through the inclined surface of the follower connecting plate 5 . The motor 1 drives the ball screw 3 to rotate, and the slide table 13 moves laterally with the bracket 7 . When the bracket 7 is close to the support seat 4, the bayonet pin 11 enters the rectangular slot through the inclined surface of the follow-up connecting plate 5, and the follow-up connecting plate 5 breaks away from the fixed pin 6 at the same time, and the support seat 4 moves laterally with the support 7 to perform follow-up. Supporting action; when the bracket 7 moves in the reverse direction, the bayonet pin 11 pulls the support seat 4 through the rectangular slot to move laterally with the bracket 7, and when the inclined surface of the follower connecting plate 5 contacts the fixed pin 6, as the inclination angle gradually rises, The bayonet pin 11 breaks away from the rectangular slot of the follower connecting plate 5, the support base 4 stops moving, and the disengagement action of the follower support is completed.

Further, the follow-up support assemblies are divided into two groups, and the two sets of follow-up support assemblies are located on the front and rear sides of the bracket 7 and installed symmetrically under the ball screw 3 .

Further, the upper part of the support seat 4 is provided with a semicircular groove, through which the ball screw 3 is supported.

The present invention adopts the above-mentioned composition structure, and a follow-up support assembly is installed under the ball screw, and the follow-up connecting plate and the support seat on the follow-up support assembly can move laterally with the bracket to perform follow-up support actions.

The invention has the advantages of reasonable composition, simple assembly, convenient operation and reliable operation, and can realize follow-up support for the super-long machine tool ball screw, thereby fundamentally solving the influence of bending deformation on the transmission accuracy of the ball screw.

Claims (4)

1. a ball-screw follow-up supporting device, it includes that ball-screw, motor, support, slide unit, described ball-screw pass through Bearing is arranged on bed piece side, and motor is arranged on ball-screw one end, and and ball-screw connection, ball-screw and support Threaded engagement, slide unit is rack-mount, it is characterised in that: servo-actuated support component is installed below described ball-screw, described Servo-actuated support component includes slide rail, supports seat, slide, servo-actuated connecting plate, and described slide rail is installed on bed piece side by L-type bearing Face, supports seat and is arranged on slide, and slide slides on slide rail；It is inboard that described servo-actuated connecting plate is arranged on support seat by bearing pin, Servo-actuated connecting plate is provided with rectangle draw-in groove and inclined plane, and bed piece side is provided with steady pin, and servo-actuated connecting plate inclined plane rides over solid In rationed marketing；Described support medial surface is provided with bayonet lock；Driven by motor ball screw turns, slide unit, with support transverse shifting, works as support In time supporting seat, bayonet lock enters in rectangle draw-in groove by the inclined plane of servo-actuated connecting plate, and the most servo-actuated connecting plate departs from steady pin, with Dynamic connecting plate and support seat, with support transverse shifting, carry out servo-actuated support part；When support reversely moves, bayonet lock passes through rectangle draw-in groove Pull support seat with support transverse shifting, when servo-actuated connecting plate inclined plane contacts with steady pin, along with progressively lifting of angle of inclination Rising, bayonet lock departs from the rectangle draw-in groove of servo-actuated connecting plate, supports seat and stops mobile, completes the disengaging action of servo-actuated support.

Ball-screw follow-up supporting device the most according to claim 1, it is characterised in that: described servo-actuated support component is two Group, two groups of servo-actuated support components are positioned at both sides before and after support, are symmetrically mounted on below ball-screw.

Ball-screw follow-up supporting device the most according to claim 1, it is characterised in that: described support seat top is provided with half Circular groove, by semi-circular recesses back-up roller ballscrew.

Ball-screw follow-up supporting device the most according to claim 1, it is characterised in that: described servo-actuated connecting plate rear end is arranged Having and support the circular hole that seat upper pin coordinates, servo-actuated connecting plate can rotate around bearing pin.