CN220073882U

CN220073882U - High-speed quick-acting column type gantry machining center bottom bed structure

Info

Publication number: CN220073882U
Application number: CN202321333851.9U
Authority: CN
Inventors: 尹扬州
Original assignee: Suzhou Taixun Intelligent Cnc Technology Co ltd
Current assignee: Suzhou Taixun Intelligent Cnc Technology Co ltd
Priority date: 2023-05-30
Filing date: 2023-05-30
Publication date: 2023-11-24
Anticipated expiration: 2033-05-30

Abstract

The utility model relates to the technical field of machining centers and discloses a base bed structure of a high-speed moving column gantry machining center. The bottom edge of the bottom bed extends downward and is in contact with the ground to form a support. Both sides of the workbench are not connected to the bottom bed, and the bottom beam passes through the gap between both sides of the workbench and the bottom bed, and The servo drive module is connected under the workbench. When designing the beams, there is no need to consider the influence of weight on the deformation of the base bed, which can better increase the structural strength of the beams and ensure the accuracy of the beams; the part of the bed that carries the beams is separated from the workbench, and the deformation of the beams on the bed will not occur at all. It is transferred to the workbench, which will not affect the accuracy of the workpiece placed on the workbench; the weight of the workpiece that can be carried on the workbench is significantly increased compared to the common bottom bed structure; the cross beam moves through the ball guide rail, and the moving point is closer to the center of gravity of the moving part. It is more stable when moving and improves processing accuracy.

Description

High-speed quick-acting column type gantry machining center bottom bed structure

Technical Field

The utility model relates to the technical field of machining centers, in particular to a high-speed quick-acting column type gantry machining center bottom bed structure.

Background

The common central bed structure of high-speed column type gantry machining is formed by integral casting, and can only be designed as follows due to structural limitation: a servo driving module is arranged in the hollow middle part, and four corners of the servo driving module are distributed on the bottom bed legs to support the bottom bed and all the weight borne above the bottom bed, and the weight of a machined part borne on a later stage workbench.

Adverse effects are: 1. all the weight borne by the cross beam and the upper part of the cross beam is borne on the bottom bed through ball guide rails at two sides of the bottom bed, the weight is quite large and can reach 1.5-2 tons, the bottom bed is supported by the bottom bed supporting legs at four corners only, the bottom bed can be greatly deformed, the deformation of the maximum deformation is between 0.08-0.15mm (different deformation can be expressed according to structural designs of different manufacturers), and further the processing precision can not reach the high-precision requirement; 2. the bottom bed is deformed due to the weight borne by the cross beam and the upper part of the cross beam, and the deformation can be completely transferred to the workpiece borne by the workbench, so that the workpiece is deformed after being processed, and the processing precision of the workpiece is further affected; 3. the workpiece is placed on the workbench, and the weight of the workpiece can cause deformation of the bottom bed to influence the machining precision of the workpiece; 4. the four-side support is only used for supporting the bottom bed, the four-side support legs bear very large force, and the machine tool has great negative influence on vibration resistance of the whole machine tool in the later stage and long-time distortion deformation of the machine tool.

Disclosure of Invention

The utility model aims to provide a high-speed column type gantry machining center bottom bed structure so as to solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a high-speed quick-acting column type longmen processing center bed structure, includes the bed, the bed upper end is equipped with the workstation, the workstation top is equipped with the crossbeam of fore-and-aft movement, crossbeam both sides lower extreme and the ball guide sliding connection that is equipped with above the bed both sides, the crossbeam bottom is equipped with the floorbar that is in the workstation below, the workstation below is equipped with the servo drive module group of being connected with the floorbar transmission, the bed bottom border down extends all around, and forms the support with ground contact, the workstation both sides are not connected with the bed, and the floorbar passes the space that is equipped with between workstation both sides and the bed, is connected with the servo drive module group of workstation below.

The workbench surface can not be influenced by the weight of the cross beam and can not deform.

Preferably, the front end and the rear end of the workbench form supports with the ground, and can directly form supports with the ground, and only the weight of the workpiece is borne.

Preferably, the front end and the rear end of the workbench are fixedly connected with the front end and the rear end of the bottom bed, so that an integrated design can be formed, and the workbench is supported by the supporting edges of the front end and the rear end of the bottom bed.

Compared with the prior art, the high-speed quick-acting column type gantry machining center bottom bed structure has the advantages that all the beams and all the weight borne on the beams are borne to the bottom bed through the guide rails, and all the forces are directly transmitted to the ground without suspending around the bottom bed. Has the following advantages: 1. the deformation influence of the weight on the bottom bed is not considered when the cross beam is designed, so that the structural strength of the cross beam can be better increased, and the accuracy of the cross beam is further ensured; 2. the part of the bottom bed bearing beam is separated from the workbench, and the deformation of the bottom bed bearing beam is not transmitted to the workbench at all, so that the precision of a workpiece placed on the workbench surface is not affected; 3. the weight of the workpiece which can be borne on the workbench is greatly increased compared with a common bottom bed structure; 4. the cross beam moves through the ball guide rail, the moving point is closer to the gravity center of the moving part, the moving point is more stable during moving, and the machining precision is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate and together with the embodiments of the utility model and do not constitute a limitation to the utility model, and in which:

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a front view of the present utility model;

FIG. 3 is a side view of the present utility model;

FIG. 4 is a partial cross-sectional view of A-A of FIG. 3;

FIG. 5 is a perspective view of a prior art machining center;

fig. 6 is a front view of a conventional machining center.

In the accompanying drawings:

1. a cross beam; 11. a bottom beam; 2. a work table; 3. a ball guide rail; 4. a bed; 41. bottom legs.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 5-6, the middle of the bottom bed 4 is hollowed out, the workbench 2 is supported by the bottom bed legs 41 at four corners, the lower ends of two sides of the cross beam 1 slide on the ball guide rails 3 at two sides of the bottom bed 4, the workbench 2 needs to support the weight of a workpiece, and two sides also need to support the weight of the cross beam 1.

Referring to fig. 1-4, the present utility model provides a technical solution: the high-speed quick-acting column type gantry machining center bottom bed structure, the bottom of the bottom bed 4 is downward extended along the periphery, and is in contact with the ground to form a support, the workbench 2 is arranged at the upper end of the bottom bed 4, in a preferred embodiment, the front end and the rear end of the workbench 2 are fixedly connected with the front end and the rear end of the bottom bed 4, an integrated design can be formed, the support to the workbench 2 is formed through the support edges of the front end and the rear end of the bottom bed 4, in another embodiment, the front end and the rear end of the workbench 2 can be directly supported with the ground, and the two sides of the workbench 2 are not connected with the bottom bed 4.

The crossbeam 1 that the workstation 2 top was equipped with the back-and-forth movement, the ball guide rail 3 sliding connection that crossbeam 1 both sides lower extreme and bed 4 both sides top were equipped with, crossbeam 1 bottom was equipped with the floorbar 11 that is in workstation 2 below, has the space between workstation 2 both sides and the bed 4, supplies floorbar 11 to pass, and makes things convenient for floorbar 11 back-and-forth movement.

A servo driving module in transmission connection with the bottom beam 11 is arranged below the workbench 2, and the bottom beam 11 passes through gaps arranged between two sides of the workbench 2 and the bottom bed 4 and is connected with the servo driving module below the workbench 2.

The specific working principle of the utility model will be explained in detail below: when the equipment is used, the servo driving module drives the bottom beam 11 to move back and forth, so that the beam 1 is driven to move back and forth above the workbench 2, and as the two sides of the workbench 2 are not in direct contact with the bottom bed 4, the weight of the beam 1 is not required to be borne, and the deformation of the workbench 2 is not caused.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high-speed quick-acting column type longmen processing center bed structure, includes bed (4), bed (4) upper end is equipped with workstation (2), workstation (2) top is equipped with crossbeam (1) of back and forth movement, ball guide (3) sliding connection that crossbeam (1) both sides lower extreme and bed (4) both sides top were equipped with, crossbeam (1) bottom is equipped with floorbar (11) that are in workstation (2) below, workstation (2) below is equipped with servo drive module that is connected with floorbar (11) transmission, its characterized in that: the bottom of bed (4) is border downwardly extending all around, and forms the support with ground contact, workstation (2) both sides are not connected with bed (4), and bed beam (11) pass workstation (2) both sides and the space that is equipped with between bed (4), be connected with the servo drive module of workstation (2) below.

2. The high-speed post gantry machining center bed structure according to claim 1, wherein: the front end and the rear end of the workbench (2) form a support with the ground.

3. The high-speed post gantry machining center bed structure according to claim 2, wherein: the front end and the rear end of the workbench (2) are fixedly connected with the front end and the rear end of the bottom bed (4).