High-reliability elastic washer for lead screw

Abstract

A high-reliability ball screw elastic washer is disclosed, relating to the field of ball screw elastic washer technology, addressing the technical problems of poor reliability, poor structural rigidity, easy deformation, and poor dynamic response of existing ball screw washers. This elastic washer is applied to a workpiece. The method involves fitting elastic washers to the upper and lower ends of the last stage of the ball screw assembly, which is installed within a housing, with a cover plate mounted on the elastic washer. An external drive device drives the ball screw to move. During the reciprocating motion of the ball screw nut along the length of the ball screw, a radial impact force is generated on the housing. The elastic washer's elasticity dampens and buffers this radial impact force from the reciprocating motion of the ball screw assembly, ensuring that the dynamic response test of the servo mechanism meets performance requirements.

Description

Technical Field

[0001] This invention belongs to the field of elastic washers, specifically a high-reliability ball screw elastic washer. Background Technology

[0002] With the continuous innovation and development of servo technology, the structure of servo mechanisms is constantly evolving towards miniaturization, lightweighting, and high precision. This places increasingly higher demands on electric servo mechanisms in terms of size, weight, performance, reliability, and continuous long-term operation. While reducing costs, there is an urgent need for electric servo mechanism technology to develop towards high performance, miniaturization, and high reliability. In high-precision servo mechanisms, due to the harsh and complex mechanical environment of actual operation, the servo mechanism is susceptible to resonance under high-speed motion or complex loads. Therefore, vibration damping devices are installed in the servo mechanism to improve its adaptability to complex load environments.

[0003] Currently, domestically produced elastic washers cannot meet the requirements due to problems such as poor reliability, poor structural stiffness, easy deformation, poor modal performance, and high price, which limits their promotion and application.

[0004] Compared with existing washers, high-reliability elastic washers have successfully solved the above problems. They can meet the dynamic vibration performance requirements of electric servo mechanisms, ensure the reliability of the dynamic characteristics of electric servo mechanisms, reduce the tediousness of repeated assembly and screening, save production and debugging time, improve process performance, and have strong practicality. Summary of the Invention

[0005] This invention discloses a high-reliability ball screw elastic washer, relating to the field of ball screw elastic washer technology, and solves the technical problems of poor reliability, poor structural stiffness, easy deformation, and poor dynamic response of existing ball screw washers.

[0006] This invention discloses a high-reliability elastic washer applied to a workpiece. The method involves fitting elastic washers onto the upper and lower ends of the lead screw assembly, the final stage of which is connected. The lead screw assembly is installed within a housing, and a cover plate is mounted on the elastic washer. An external drive device drives the lead screw to move. During the reciprocating motion of the lead screw nut along its length, a radial impact force is generated on the housing. The elastic washer's elasticity dampens and buffers this radial impact force from the reciprocating motion of the lead screw assembly, ensuring the servo mechanism's dynamic response meets performance requirements.

[0007] In the aforementioned method, the elastic washer is made of a high-strength material with an elastic modulus of 200,000 N / mm² and a heat resistance temperature of 150°C.

[0008] In the aforementioned method, the elastic washer is made of GCr15 steel rod material and has sufficient strength to withstand the impact force applied to the elastic washer when the screw assembly is working.

[0009] According to the above method, a high-reliability elastic washer of the present invention is constructed by machining mounting holes on the cover plate and the housing, and using screws to pass through the mounting holes of the cover plate to fix the elastic washer between the lead screw end of the lead screw assembly and the housing.

[0010] The structure of a high-reliability elastic washer according to the above method includes a cover plate and a mounting hole at the center of the inner circle of the elastic washer, which facilitates the insertion and installation of the lead screw end through the central mounting hole of the elastic washer. The elastic washer has through holes evenly distributed near the outer circumference, and bosses are evenly distributed along the inner circumference on the front side of the elastic washer. The through holes are slotted towards the inner bosses and connected to the central mounting hole.

[0011] The elastic washer has bosses machined along the outer circumference on both sides, but no bosses are machined along the inner circumference on the reverse side. This makes it easier for the reverse side to contact the end plane of the screw after the elastic washer is fitted into the screw assembly.

[0012] By adopting the above technical solution, compared with the prior art, the present invention uses a high-strength material with an elastic modulus of 200,000 N / mm2 and a heat resistance temperature of 150℃ to make an elastic washer. While ensuring that the elastic washer is kept within the normal working range, the elastic washer has good strength, elasticity and machinability. It can ensure the precise fit between the lead screw assembly and the housing, while ensuring the tight connection between the elastic washer and the lead screw assembly and other equipment, thereby ensuring that the dynamic response performance of the servo mechanism meets the requirements.

[0013] The beneficial effects of this invention are as follows: This invention discloses a high-reliability elastic washer applied to a workpiece. The method involves fitting elastic washers onto the upper and lower ends of the lead screw assembly, the final stage of which is connected. The lead screw assembly is installed within a housing, and a cover plate is mounted on the elastic washer. An external drive device drives the lead screw to move. During the reciprocating motion of the lead screw nut along its length, a radial impact force is generated on the housing. The elastic washer's elasticity dampens and buffers this radial impact force from the reciprocating motion of the lead screw assembly, ensuring the servo mechanism's dynamic response meets performance requirements.

[0014] This significantly improves production efficiency. The structure is simple, easy to install and operate, highly operable, and has high reliability. Manufacturing costs are low, making it economical and conducive to standardized design and use. It reduces the labor intensity of operators and greatly improves production efficiency, increasing it by more than five times compared to before. The newly designed elastic washer has good stiffness and vibration resistance, and its low manufacturing cost makes it economical. It also reduces the quality risks of bumps and damage during repeated disassembly and assembly of the servo motor. It possesses excellent strength, elasticity, and machinability, ensuring a tight fit between the lead screw assembly and the housing, thus overcoming the shortcomings of existing technologies. Attached Figure Description

[0015] Figure 1 Schematic diagram of the elastic washer structure. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this specification clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments in this specification, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments in this application without creative effort are within the scope of protection of this document. Specific Implementation Example 1: The lead screw is a major component of the electric servo mechanism. An external drive device drives the lead screw to move. During the reciprocating motion of the lead screw and nut along the length of the lead screw, a radial impact force is generated on the housing. By installing elastic washers at both ends of the lead screw, the radial impact force of the reciprocating motion of the lead screw assembly can be reduced.

[0018] Existing solutions address the issues of poor reliability, low structural rigidity, and easy deformation of lead screw washers. These washers are prone to deformation and aging under the impact of the lead screw's reciprocating motion, limiting their long-term usability and causing servo mechanisms to fail to meet performance requirements in dynamic response tests. To ensure reliability, multiple replacements are required, hindering the assembly and adjustment efficiency of the servo mechanism and increasing its production cost.

[0019] This invention relates to a high-reliability ball screw elastic washer, solving the technical problems of poor reliability, poor structural rigidity, easy deformation, and poor dynamic response performance of existing ball screw washers. This elastic washer is made of a high-strength material with a heat resistance temperature of 150℃. Within the normal operating temperature range, the elastic washer has excellent strength and machinability. Its anti-loosening and vibration-resistant properties greatly improve the vibration mode and response characteristics of the servo motor, ensuring a precise fit between the ball screw assembly, housing, and elastic washer. It is easy to install, highly reliable, and has high practicality. 1) Repeated adjustments and disassemblies result in high labor intensity for operators and extremely low production efficiency.

[0020] 2) The old structure elastic gasket is easily damaged, has poor stability, consumes more resources, and has a high cost.

[0021] 3) During repeated disassembly and assembly, the product is prone to damage such as dents, bumps, and scratches on the working surfaces of components with high requirements, such as the housing and lead screw.

[0022] 4) The old structure of elastic washers has high requirements for the manufacturing, installation, debugging and testing of servo mechanisms, which is difficult, time-consuming and inefficient.

[0023] This invention discloses a high-reliability ball screw elastic washer, relating to the field of ball screw elastic washer technology, and solves the technical problems of poor reliability, poor structural stiffness, easy deformation, and poor dynamic response of existing ball screw washers.

[0024] This invention discloses a high-reliability elastic washer applied to a workpiece. The method involves fitting elastic washers onto the upper and lower ends of the lead screw assembly, the final stage of which is connected. The lead screw assembly is installed within a housing, and a cover plate is mounted on the elastic washer. An external drive device drives the lead screw to move. During the reciprocating motion of the lead screw nut along its length, a radial impact force is generated on the housing. The elastic washer's elasticity dampens and buffers this radial impact force from the reciprocating motion of the lead screw assembly, ensuring the servo mechanism's dynamic response meets performance requirements.

[0025] In the aforementioned method, the elastic washer is made of a high-strength material with an elastic modulus of 200,000 N / mm² and a heat resistance temperature of 150°C.

[0026] In the aforementioned method, the elastic washer is made of GCr15 steel rod material and has sufficient strength to withstand the impact force applied to the elastic washer when the screw assembly is working.

[0027] According to the above method, a high-reliability elastic washer of the present invention is constructed by machining mounting holes on the cover plate and the housing, and using screws to pass through the mounting holes of the cover plate to fix the elastic washer between the lead screw end of the lead screw assembly and the housing.

[0028] The structure of a high-reliability elastic washer according to the above method includes a cover plate and a mounting hole at the center of the inner circle of the elastic washer, which facilitates the insertion and installation of the lead screw end through the central mounting hole of the elastic washer. The elastic washer has through holes evenly distributed near the outer circumference, and bosses are evenly distributed along the inner circumference on the front side of the elastic washer. The through holes are slotted towards the inner bosses and connected to the central mounting hole.

[0029] The elastic washer has bosses machined along the outer circumference on both sides, but no bosses are machined along the inner circumference on the reverse side. This makes it easier for the reverse side to contact the end plane of the screw after the elastic washer is fitted into the screw assembly.

[0030] By adopting the above technical solution, compared with the prior art, the present invention uses a high-strength material with an elastic modulus of 200,000 N / mm2 and a heat resistance temperature of 150℃ to make an elastic washer. While ensuring that the elastic washer is kept within the normal working range, the elastic washer has good strength, elasticity and machinability. It can ensure the precise fit between the lead screw assembly and the housing, while ensuring the tight connection between the elastic washer and the lead screw assembly and other equipment, thereby ensuring that the dynamic response performance of the servo mechanism meets the requirements.

[0031] Example embodiments have been disclosed herein, and while specific terminology has been used, it is for general illustrative purposes only and should not be construed as limiting. In some embodiments, it will be apparent to those skilled in the art that features, characteristics, and / or elements described in connection with particular embodiments may be used alone, or in combination with features, characteristics, and / or elements described in connection with other embodiments, unless otherwise expressly indicated. Therefore, those skilled in the art will understand that various changes in form and detail may be made without departing from the scope of the invention as set forth by the appended claims.

Claims

1. A high-reliability ball screw elastic washer, characterized in that, The washer includes: The last stage of the lead screw assembly is fitted with elastic washers at both the upper and lower ends. The lead screw assembly is installed inside the housing, and the cover plate is installed on the elastic washers. An external drive device drives the lead screw to move. During the reciprocating motion of the lead screw nut along the length of the lead screw, a radial impact force is generated on the housing. Through the elastic action of the elastic washers, the radial impact force of the reciprocating motion of the lead screw assembly is damped and buffered, so that the dynamic response test of the servo mechanism meets the performance requirements.

2. The high-reliability ball screw elastic washer as described in claim 1, characterized in that, The elastic washer is made of a high-strength material with an elastic modulus of 200,000 N / mm² and a heat resistance temperature of 150°C.

3. The high-reliability ball screw elastic washer as described in claim 1, characterized in that, The elastic washer is made of GCr15 steel bar material and has sufficient strength to withstand the impact force applied to the elastic washer when the screw assembly is working.

4. A high-reliability lead screw elastic washer as described in claim 1, characterized in that, Mounting holes are machined on the cover plate and the housing, and screws are used to pass through the mounting holes on the cover plate to fix the elastic washer between the lead screw end of the lead screw assembly and the housing.

5. A high-reliability lead screw elastic washer as described in claim 1, characterized in that, It includes a cover plate and a mounting hole at the center of the inner circle of the elastic washer, so that the end of the lead screw can be inserted and installed through the mounting hole at the center of the elastic washer.

6. A high-reliability ball screw elastic washer as described in claim 1, characterized in that, The elastic washer has round through holes evenly distributed near the outer circumference, and bosses evenly distributed along the inner circumference on the front side of the elastic washer.

7. A high-reliability lead screw elastic washer as described in claim 1, characterized in that, The through hole is slotted towards the inner circular boss and connected to the center mounting hole.

8. A high-reliability lead screw elastic washer as described in claim 1, characterized in that, Bosses are machined along the outer circumference on both sides of the aforementioned elastic washer.

9. A high-reliability ball screw elastic washer as described in claim 1, characterized in that, No boss is machined on the inner circumference of the reverse side.

10. A high-reliability lead screw elastic washer as described in claim 1, characterized in that, The flexible washer is designed to be inserted into the lead screw assembly and then installed with its reverse side in contact with the flat end of the lead screw.

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