CN213470268U

CN213470268U - Supporting structure for gantry machine tool

Info

Publication number: CN213470268U
Application number: CN202022499059.3U
Authority: CN
Inventors: 孙中华
Original assignee: Tianjin Shenghua Hood Technology Co ltd
Current assignee: Tianjin Shenghua Hood Technology Co ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-06-18
Anticipated expiration: 2030-11-03

Abstract

The utility model provides a bearing structure for longmen lathe, the on-line screen storage device comprises a base, base upper end bilateral symmetry is provided with first guide rail, first guide rail upper end sliding connection has the stand, the balancing weight has been cup jointed in the activity on the first guide rail, stand bilateral symmetry fixedly connected with supports the down tube, the connecting block run through the through-hole and with crossbeam fixed connection, base upper end fixedly connected with deflector, base upper end middle part sliding connection has the workstation. This kind of a bearing structure's for gantry machine tool support down tube can share inhomogeneous power on the stand, prevents that the stand from leading to the slope because the power of both sides is inhomogeneous, and the relative position of balancing weight on the accessible adjustment stand bottom guide rail prevents that the guide rail from leading to the bending because of the atress is uneven in addition, guarantees the job stabilization nature and the machining precision of lathe.

Description

Supporting structure for gantry machine tool

Technical Field

The utility model belongs to the technical field of the lathe, especially indicate a bearing structure for longmen lathe.

Background

The two sides of the machine tool body of the existing gantry machine tool are composed of a portal frame consisting of upright columns and a cross beam frame, the upright columns on the two sides can slide on a base to drive a cross beam to do linear motion, a milling head with a vertical main shaft is arranged on the cross beam frame, the milling head can do transverse motion along a guide rail of the cross beam frame, the height of the cross beam of the gantry machine tool in the prior art is usually adjusted by utilizing a guide rail on the side surface of the upright column, the guide rail bears larger pressure and is easy to deform, the supporting force of the guide rails at the bottom ends of the upright columns on the two sides is not adjustable, when the milling head is closer to the upright column on one side, the upright column close to the milling head bears larger pressure relative to the other side, the pressure borne by the guide rail of the upright column close to the milling head is increased, the extrusion deformation of the side guide rail is increased, the other side is decreased, therefore, and the machine tool worktable is easy to deform under the action of large pressure. To this end, a support structure for a gantry machine is proposed.

SUMMERY OF THE UTILITY MODEL

For solving the deficiencies of the prior art, the utility model provides a supporting structure for a gantry machine tool.

The technical scheme of the utility model is realized like this:

a supporting structure for a gantry machine tool comprises a base, wherein first guide rails are symmetrically arranged on two sides of the upper end of the base, an upright post is connected to the upper end of each first guide rail in a sliding mode, the cross section of each upright post is in a trapezoid shape with a narrow top and a wide bottom, a groove is formed in the bottom end of each upright post, the groove is movably clamped on the first guide rails, a balancing weight is movably sleeved on each first guide rail, inclined supporting rods are fixedly connected to two sides of each upright post in a symmetrical mode, the bottom ends of the inclined supporting rods are connected to the upper end of the base in a sliding mode, through holes are formed in the side faces of the upright posts, a motor is fixedly connected to the bottom end inside each upright post, a lead screw is connected to the upper end of the motor in a transmission mode, a lead screw nut is connected to the lead screw, the utility model discloses a portable electric welding machine, including crossbeam, base upper end, guide plate, workstation bottom middle part are provided with the direction chamber, the guide plate activity joint is in the direction intracavity.

Preferably, the number of the balancing weights is two, and the balancing weights are located on two sides of the upright post.

Preferably, the angle formed by the supporting diagonal rod and the horizontal line is an acute angle.

Preferably, the through hole is arranged parallel to the screw rod.

Preferably, the upper end of the base is symmetrically provided with second guide rails, the second guide rails are located between the first guide rails, the second guide rails are movably clamped with sliding blocks, and the sliding blocks are fixedly connected to four corners of the bottom end of the workbench.

Preferably, deflector upper end fixedly connected with spring, spring upper end fixedly connected with fixed plate, the fixed plate is "U" type, spring and fixed plate all are located the direction intracavity, fixed plate upper end sliding connection is on the direction intracavity wall.

Preferably, the limiting rods are two, the bottom ends of the limiting rods are fixedly connected to the upper end of the motor, the limiting rods are parallel to the screw rod, limiting plates are fixedly connected to the upper ends of the limiting rods, and the diameters of the limiting plates are larger than the diameters of the limiting rods.

Compared with the prior art, the beneficial effects of the utility model are that: this kind of a stand for bearing structure of gantry machine tool is under the narrow structure of width, bearing capacity is stronger, inhomogeneous power on the stand can be shared to the support down tube of stand bottom, prevent the stand because the power of both sides is inhomogeneous and lead to the slope, the relative position of balancing weight on the guide rail of accessible adjustment stand bottom in addition, prevent that the guide rail from leading to crooked because of the atress is uneven, the direction chamber of workstation bottom and the deflector on the base are mutually supported, provide the holding power for the workstation bottom, improve the intensity of workstation, guarantee the job stabilization nature and the machining precision of lathe.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a front view of the present invention;

fig. 2 is a side view of the base of the present invention;

fig. 3 is a front cross-sectional view of the column of the present invention.

In the figure: the automatic balancing device comprises a base 1, an upright column 2, a groove 3, a first guide rail 4, a balancing weight 5, a supporting inclined rod 6, a through hole 7, a motor 8, a screw rod 9, a limiting rod 10, a screw rod nut 11, a connecting block 12, a second guide rail 13, a sliding block 14, a workbench 15, a guide cavity 16, a spring 17, a fixing plate 18, a guide plate 19, a cross beam 20, a working machine head 21 and a limiting plate 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-3: a supporting structure for a gantry machine tool comprises a base 1, wherein first guide rails 4 are symmetrically arranged on two sides of the upper end of the base 1, an upright post 2 is connected to the upper end of each first guide rail 4 in a sliding mode, the section of each upright post 2 is in a trapezoid shape with a narrow upper part and a wide lower part, each upright post 2 can slide back and forth along the corresponding first guide rail 4, the position of each upright post 2 is changed according to the machining requirement of a workpiece, and the upright posts 2 are narrow upper parts and wide lower parts, so that the weighing capacity of the upright posts 2 is higher, and;

the bottom end of the upright post 2 is provided with a groove 3, the groove 3 is movably clamped on a first guide rail 4, the first guide rail 4 is movably sleeved with at least two balancing weights 5, the balancing weights 5 are respectively positioned at the front side and the rear side of the upright post 2, the balancing weights 5 can move along the first guide rail 4, when the upright post 2 moves back and forth, the first guide rail 4 is stressed unevenly as a whole, so that the first guide rail 4 can be bent, the balancing weights 5 can be moved at the moment, the stress condition of the first guide rail 4 is changed, the stress distribution of the whole first guide rail 4 is balanced, and the first guide rail 4 is prevented from being bent and damaged;

the two sides of the upright post 2 are symmetrically and fixedly connected with supporting inclined rods 6, the bottom ends of the supporting inclined rods 6 are connected to the upper end of the base 1 in a sliding mode, the supporting inclined rods 6 are obliquely arranged on the two sides of the upright post 2, when the stress direction of the upright post 2 is not the vertical direction but is oblique, the upright post 2 can be obliquely bent, the machining precision is reduced, the stress of the upright post 2 can be uniformly applied to the supporting inclined rods 6 in the oblique direction, and the upright post 2 is prevented from being inclined due to overlarge stress;

the side surface of the upright post 2 is provided with a through hole 7, the bottom end inside the upright post 2 is fixedly connected with a motor 8, the upper end of the motor 8 is in transmission connection with a screw rod 9, a screw rod nut 11 is in threaded connection with the screw rod 9, two sides of the screw rod nut 11 are provided with a limiting rod 10 in a penetrating manner, the side surface of the screw rod nut 11 is fixedly connected with a connecting block 12, the connecting block 12 penetrates through the through hole 7 and is fixedly connected with the cross beam 20, when the height of the cross beam 20 needs to be changed, the motor 8 can be started to drive the screw rod 9 to rotate, at the moment, the screw rod nut 11 makes linear motion in the up-down direction on;

the crossbeam 20 is horizontally arranged, the side surface of the crossbeam 20 is connected with a working machine head 21 in a sliding manner, the working machine head 21 moves left and right on the crossbeam 20, when the working machine head 21 is close to the upright column 2 on one side, the force borne by the upright column 2 is larger than that borne by the upright column 2 on the other side, uneven stress on the upright column 2 is easily caused, the supporting inclined rod 6 can share part of stress in the inclined direction at the moment to prevent the upright column 2 from deforming, in addition, the first guide rail 4 of the upright column 2 close to the working machine head 21 is easily deformed due to uneven stress, the balancing weight 5 can be moved at the moment, the stress distribution condition of the first guide rail 4 is adjusted, so that the stress on the first guide rail 4;

base 1 upper end fixedly connected with deflector 19, base 1 upper end middle part sliding connection has

workstation

15, 15 bottom middle parts of workstation are provided with

direction chamber

16, 19 activity joints of deflector are in direction chamber 16, when workstation 15 fore-and-aft movement on base 1, deflector 19 plays the guide effect, prevent the direction of motion skew of workstation 15, and deflector 19 plays the supporting role to workstation 15 bottom simultaneously, prevents that workstation 15 atress is crooked.

Further, balancing weight 5 is two, and balancing weight 5 is located 2 both sides of stand, and two balancing weights 5 mutually support, through adjusting the distance between two balancing weights 5, adjusts the whole atress condition of first guide rail 4.

Furthermore, an included angle formed by the supporting diagonal rod 6 and a horizontal line is an acute angle, and the supporting diagonal rod 6 can bear the force in the inclined direction of the upright post 2, so that the upright post 2 is prevented from being inclined, and the processing precision is reduced.

Further, the through hole 7 is arranged in parallel to the screw rod 9, the through hole 7 is used for the connecting block 12 to pass through, and the connecting block 12 moves along the direction of the screw rod 9, so that the through hole 7 is arranged in parallel to the screw rod 9 and can play a role in guiding.

Further, base 1 upper end symmetry is provided with second guide rail 13, and second guide rail 13 is located between first guide rail 4, and the movable joint has slider 14 on second guide rail 13, and slider 14 fixed connection is in 15 bottom four corners of workstation, and slider 14 is the back-and-forth movement on second guide rail 13, drives the back-and-forth movement of workstation 15.

Further, 19 upper ends of the guide plates are fixedly connected with

springs

17, 17 upper ends of the springs are fixedly connected with fixing plates 18, the fixing plates 18 are of an inverted U shape, the springs 17 and the fixing plates 18 are located in the guide cavities 16, the upper ends of the fixing plates 18 are slidably connected to the inner walls of the guide cavities 16, when the workbench 15 generates vibration, the vibration is transmitted to the springs 17 through the guide cavities 16, and the springs 17 move up and down to play a buffering role in the vibration.

Furthermore, the number of the limiting rods 10 is two, the bottom end of each limiting rod 10 is fixedly connected to the upper end of the motor 8, the limiting rods 10 are arranged in parallel to the screw rod 9, the upper ends of the limiting rods 10 are fixedly connected with limiting plates 22, and the diameters of the limiting plates 22 are larger than the diameters of the limiting rods 10.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A supporting structure for a gantry machine, comprising a base (1), characterized in that: the upper end of the base (1) is symmetrically provided with first guide rails (4), the upper end of each first guide rail (4) is connected with a stand column (2) in a sliding manner, the cross section of each stand column (2) is trapezoidal with a narrow upper part and a wide lower part, the bottom end of each stand column (2) is provided with a groove (3), the grooves (3) are movably clamped on the first guide rails (4), a balancing weight (5) is movably sleeved on each first guide rail (4), the two sides of each stand column (2) are symmetrically and fixedly connected with supporting inclined rods (6), the bottom ends of the supporting inclined rods (6) are connected to the upper end of the base (1) in a sliding manner, the side surfaces of the stand columns (2) are provided with through holes (7), the bottom ends inside the stand columns (2) are fixedly connected with motors (8), the upper ends of the motors (8) are connected with screw rods (9) in a transmission manner, screw nuts (11, feed screw nut (11) side fixedly connected with connecting block (12), connecting block (12) run through-hole (7) and with crossbeam (20) fixed connection, crossbeam (20) level sets up, crossbeam (20) side sliding connection has work aircraft nose (21), base (1) upper end fixedly connected with deflector (19), base (1) upper end middle part sliding connection has workstation (15), workstation (15) bottom middle part is provided with direction chamber (16), deflector (19) activity joint is in direction chamber (16).

2. A support structure for a gantry machine according to claim 1, characterized in that: the number of the balancing weights (5) is two, and the balancing weights (5) are located on two sides of the upright post (2).

3. A support structure for a gantry machine according to claim 1, characterized in that: the included angle formed by the supporting diagonal rod (6) and the horizontal line is an acute angle.

4. A support structure for a gantry machine according to claim 1, characterized in that: the through hole (7) is arranged in parallel to the screw rod (9).

5. A support structure for a gantry machine according to claim 1, characterized in that: base (1) upper end symmetry is provided with second guide rail (13), second guide rail (13) are located between first guide rail (4), the activity joint has slider (14) on second guide rail (13), slider (14) fixed connection is in workstation (15) bottom four corners.

6. A support structure for a gantry machine according to claim 1, characterized in that: deflector (19) upper end fixedly connected with spring (17), spring (17) upper end fixedly connected with fixed plate (18), fixed plate (18) are "U" type of falling, spring (17) and fixed plate (18) all are located direction chamber (16), fixed plate (18) upper end sliding connection is on direction chamber (16) inner wall.

7. A support structure for a gantry machine according to claim 1, characterized in that: gag lever post (10) is two, gag lever post (10) bottom fixed connection is in motor (8) upper end, gag lever post (10) is on a parallel with lead screw (9) and sets up, gag lever post (10) upper end fixedly connected with limiting plate (22), limiting plate (22) diameter is greater than gag lever post (10) diameter.