CN-224223364-U - Long lead screw strutting arrangement

Abstract

The utility model provides a long screw supporting device, which belongs to the field of long screw equipment, and comprises a machine table, wherein a supporting piece is arranged on the machine table and is positioned below the middle position of a screw rod, the end part of the supporting piece is abutted against the outer surface of the screw rod, a rebound piece is arranged at the tail part of the supporting piece, a carrying platform is arranged on the screw rod, a boss is formed at the bottom of the carrying platform and is abutted against the end part of the supporting piece, and the rebound piece is used for enabling the boss to reset with the supporting piece to support the screw rod when the boss is abutted against and pressed down.

Inventors

• YAO XIAOTAO
• WANG WEIGANG
• WANG RUI

Assignees

• 西安华欧精密机械有限责任公司

Dates

Publication Date

20260512

Application Date

20250506

Claims (7)

1. 1. A long screw supporting device comprises a machine table and is characterized in that 1, a supporting piece (1) is arranged on the machine table, the supporting piece (1) is positioned below the middle position of a screw rod, the end part of the supporting piece (1) is abutted against the outer surface of the screw rod, and a rebound piece (2) is arranged at the tail part of the supporting piece (1); The screw rod is provided with an object carrying platform (3), a boss (4) is formed at the bottom of the object carrying platform (3), and the boss (4) is abutted to the end part of the supporting piece (1); The rebound piece (2) is used for enabling the boss (4) to reset with the supporting piece (1) to support the screw rod when the supporting piece (1) is pressed down in a collision mode.
2. 2. A long-screw supporting device as claimed in claim 1, wherein the supporting piece (1) is integrally arranged in a T shape, the supporting piece (1) comprises a cross bar (5) positioned at the end part, the supporting piece (1) further comprises a connecting rod (6) positioned at the tail part, and the end part of the connecting rod (6) is fixedly arranged with the bottom surface of the cross bar (5).
3. 3. A long-screw supporting device according to claim 2, characterized in that the upper base surface of the cross bar (5) is provided with a ball (7) adjacently, and the outer surface of the ball (7) is abutted against the surface of the screw rod for reducing friction force when the screw rod moves.
4. 4. A long-screw supporting device as set forth in claim 3, wherein the machine is provided with a limit groove (8), the tail of the connecting rod (6) is positioned in the limit groove (8) and the connecting rod (6) can slide up and down.
5. 5. A long-screw supporting device as claimed in claim 4, characterized in that the resilient member (2) is a spring which is sleeved on the connecting rod (6) and which is located between the machine and the cross bar (5).
6. 6. A long-screw supporting device as claimed in claim 5, characterized in that the inclined surfaces (9) are formed on both sides of the boss (4).
7. 7. A long-screw supporting device as claimed in claim 6, wherein the machine is provided with slide rails (10) on both sides, and the carrying platform (3) is connected with the slide rails (10).

Description

Long lead screw strutting arrangement Technical Field The utility model relates to the field of long screw equipment, in particular to a long screw supporting device. Background In the field of long-screw equipment, long-screw is a key component, and is mainly used for converting rotary motion into linear motion or converting linear motion into rotary motion, and plays a vital role in numerous mechanical devices such as machine tool processing, automatic production lines, semiconductor manufacturing equipment and the like. The displacement of the component can be accurately controlled, and high-precision operation of the equipment is ensured. Existing long screw shafts are generally long, and when the equipment is in operation, the weight of the long screw shafts and the load can cause bending deformation of the screw shafts. By taking machine tool processing as an example, when the lead screw is bent, the relative position between the cutter and the workpiece is deviated, so that the processing precision is reduced, and the dimensional precision of the produced product cannot meet the requirement. The main reason for this problem is that existing long-screw support means are often relatively simple. It is common to support at both ends of the screw in such a way that the basic requirements are met for short screws, but for long screws the middle part lacks effective support. As the length of the screw increases, the intermediate portion sinks under the force of gravity and load. Moreover, during operation of the apparatus, the lead screw is constantly reciprocated, which further increases the degree of deformation of the intermediate portion. When the screw rod is in the deformation state for a long time, the service life of the screw rod can be influenced, the maintenance cost of equipment can be increased by frequently replacing the screw rod, the production efficiency is reduced, and the production and management of enterprises are adversely affected. Therefore, it is necessary to develop a supporting device capable of effectively supporting the middle portion of a long lead screw, reducing deformation, and improving machining accuracy and equipment stability. Disclosure of utility model In view of the above, the utility model provides a long screw supporting device, which can make the supporting piece pressed down when the carrying platform passes through the supporting piece by placing the supporting piece at the middle position of the screw rod and placing the supporting piece at the tail part of the supporting piece, so that the normal operation of the carrying platform is not affected. In order to solve the technical problems, the utility model provides a long screw supporting device which comprises a supporting piece, wherein the supporting piece is positioned below the middle position of a screw rod and used for supporting the middle position of the screw rod, so that the overlong middle position of the screw rod is prevented from falling down, the accuracy of the screw rod is influenced, the supporting piece is used for effectively supporting the screw rod, the problems of bending, deformation and the like caused by uneven stress or overlarge pressure of the screw rod are prevented, and the stability and the reliability of the operation of the screw rod are ensured. The end part of the supporting piece directly abuts against the outer surface of the screw rod, and the supporting force can be directly transmitted to the screw rod in an abutting mode, so that the middle part of the screw rod is supported in real time. Simultaneously, the support tail is provided with the resilience piece, when the support piece top is passed through when carrying the thing platform to one side when removing, the boss of carrying the thing platform bottom can exert pressure to the support piece tip, makes support piece produce certain displacement downwards, and the resilience piece then plays a role at this moment, and it can make the boss conflict back down to support piece, and support piece resets rapidly, continues to carry out stable support to the lead screw, guarantees that whole device lasts normal operating. The screw rod is provided with the carrying platform, the bottom of the carrying platform is specially designed to form a boss, the whole boss is in a trapezoid shape, when the carrying platform moves to one side, the lower end of the boss is firstly contacted with the end part of the supporting piece, the supporting piece can be firstly pressed down, the supporting piece is gradually pressed down to a height suitable for the carrying platform to pass through, and after the carrying platform passes through the supporting piece, the rebound piece drives the supporting piece to reset so as to continuously support the middle part of the screw rod. The support piece is wholly T-shaped, and the support piece is including the horizontal pole that is located the tip, and the horizontal pole mainly plays the