Tool mechanism capable of accurately controlling rotation
By designing transverse circular holes on the support of the rotating tool and installing rolling bearings and spacers on the rotating shaft, the radial jumping problem caused by coaxiality error in the existing rotating tool is solved, and high-precision rotary positioning is achieved.
Patent Information
- Application Number
- CN202421809539.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The existing rotary tooling has radial jumps during rotation due to the coaxiality error of the output shaft, thereby reducing the accuracy of rotation.
A tooling mechanism for precisely controlling rotation is designed, and high-precision axial and radial positioning is achieved by providing a circular hole passing through transversely on the support and installing two rolling bearings and spacers on the rotating shaft.
Through this tooling mechanism, the axial and radial positioning accuracy of the rotary shaft is high, which ensures the rotation positioning accuracy of the workpiece, thereby improving the rotation accuracy.
Smart Images
Figure CN223029481U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tooling, in particular to a tooling mechanism for precisely controlling rotation. Background Technique
[0002] During the processing, tooling is often used for processing assistance such as fixing, rotating, and flipping parts. The rotary tooling is used to achieve precise rotary positioning of the workpiece. In the prior art, most rotary toolings are driven by servo motors. In order to ensure the stability of rotation, the output shaft is usually supported by two roller bearings for the rotating shaft. The two mounting grooves on the support are machined separately, and it is difficult to achieve a high coaxial accuracy. If there is a large coaxiality error, radial runout will occur during rotation, and then the rotation accuracy will not be high. Content of the Utility Model
[0003] The purpose of the utility model is to provide a tooling mechanism for precisely controlling rotation to solve the problems raised in the above background technique.
[0004] To achieve the above purpose, the utility model provides the following technical solution: A tooling mechanism for precisely controlling rotation, including a support and a servo motor. The support is provided with a circular hole penetrating horizontally. A concentric motor seat is installed on the side of the support. The motor seat is cylindrical. The servo motor is installed at the outer end of the motor seat. The output end of the servo motor is installed with a rotating shaft through a coupling. The rotating shaft sequentially penetrates the motor seat and the circular hole and extends out. A tooling plate is fixedly installed at the front end of the rotating shaft. The diameter of the circular hole is larger than the diameter of the rotating shaft. Two rolling bearings are installed on the rotating shaft. The two rolling bearings are respectively installed at the front and rear ends of the circular hole. There is an interference fit between the outer ring of the rolling bearing and the circular hole. A cylindrical and adapted spacer sleeve is installed in the circular hole. The end face of the spacer sleeve abuts against the inner side face of the outer ring of the rolling bearing.
[0005] Preferably, a threaded hole extending vertically downward to the circular hole is provided at the top of the support. A set screw is screwed into the threaded hole. A ring groove is provided on the outer side of the spacer sleeve. The lower end of the set screw abuts against the ring groove to limit the axial movement of the spacer sleeve.
[0006] Preferably, an annular wear-resistant retaining ring is sleeved on the rotating shaft. The wear-resistant retaining ring is located between the end face of the motor seat and the rolling bearing.
[0007] Compared with the prior art, the beneficial effects of the utility model are as follows: The utility model drives the rotation of the rotating shaft with a servo motor. The tooling plate is installed at the outer end of the rotating shaft. The rotating shaft is installed with the support through two rolling bearings. Moreover, the two rolling bearings are installed at the front and rear ends of the circular hole. The coaxiality between the two rolling bearings is high. The two rolling bearings are positioned through a spacer sleeve. A convex ring is provided on the rotating shaft for axial positioning. Therefore, the axial and radial positioning accuracy of the rotating shaft is high. When rotating and positioning the workpiece, the positioning accuracy is high. Description of the Drawings
[0008] Figure 1 This is the schematic diagram of the explosion structure of the present utility model;
[0009] Figure 2 This is the schematic cross-sectional structure diagram of the present utility model.
[0010] In the figure: 1, support; 2, servo motor; 3, coupling; 4, motor base; 5, spacer sleeve; 6, rolling bearing; 7, rotating shaft; 8, wear-resistant retaining ring; 9, tooling plate; 10, set screw. Specific embodiments
[0011] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.
[0012] Please refer to Figure 1-2 , the present utility model provides a technical solution: a tooling mechanism for precisely controlling rotation, including a support 1 and a servo motor 2. The support 1 is provided with a circular hole penetrating horizontally. A concentric motor base 4 is installed on the side of the support 1. The motor base 4 is cylindrical. The servo motor 2 is installed at the outer end of the motor base 4. The output end of the servo motor 2 is installed with a rotating shaft 7 through a coupling 3. The rotating shaft 7 sequentially penetrates the motor base 4, the circular hole and extends out. A tooling plate 9 is fixedly installed at the front end of the rotating shaft 7. The diameter of the circular hole is larger than the diameter of the rotating shaft 7. The tooling plate 9 is driven to rotate for rotating and adjusting the angle of the workpiece. The circular hole is a straight hole with a consistent diameter, which is convenient for processing.
[0013] Two rolling bearings 6 are installed on the rotating shaft 7. The two rolling bearings 6 are respectively installed at the front and rear ends of the circular hole, which can ensure a high coaxiality. An annular wear-resistant retaining ring 8 is sleeved on the rotating shaft 7. The wear-resistant retaining ring 8 is located between the end face of the motor base 4 and the rolling bearing 6. There is an interference fit between the outer ring of the rolling bearing 6 and the circular hole. A cylindrical and matching spacer sleeve 5 is installed in the circular hole. The end face of the spacer sleeve 5 abuts against the inner side of the outer ring of the rolling bearing 6. The outer end of the rotating shaft 7 is provided with a convex ring with an increased diameter, and the convex ring is used for axially restricting the outer rolling bearing 6. A screw hole extending vertically downward to the circular hole is provided at the top of the support 1. A set screw 10 is screwed into the screw hole. A ring groove is provided on the outer side of the spacer sleeve 5. The lower end of the set screw 10 abuts against the ring groove to limit the axial movement of the spacer sleeve 5. The rotating shaft 7 has a high precision of axial and radial positioning, and the rotating shaft 7 drives the tooling plate 9 to rotate with a high position precision.
[0014] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A tooling mechanism for precisely controlling rotation, comprising a support (1) and a servo motor (2), wherein the support (1) is provided with a circular hole extending transversely therethrough, a concentric motor seat (4) is mounted on the side of the support (1), the motor seat (4) is cylindrical, and the servo motor (2) is mounted on the outer end of the motor seat (4), characterized in that: The output end of the servo motor (2) is provided with a rotating shaft (7) through a coupling (3). The rotating shaft (7) passes through the motor seat (4) and the circular hole in sequence and extends out. A tooling plate (9) is fixedly installed at the front end of the rotating shaft (7). The diameter of the circular hole is larger than the diameter of the rotating shaft (7). Two rolling bearings (6) are installed on the rotating shaft (7). The two rolling bearings (6) are respectively installed at the front and rear ends of the circular hole. The outer end of the rotating shaft (7) is provided with a convex ring with a larger diameter. The outer ring of the rolling bearing (6) is transitionally matched with the circular hole. A cylindrical and matching spacer (5) is installed in the circular hole. The end face of the spacer (5) abuts against the inner side face of the outer ring of the rolling bearing (6).
2. A tooling mechanism for precise rotation control according to claim 1, characterized in that: The top of the support (1) is provided with a screw hole extending vertically downward to the circular hole, a set screw (10) is screwed into the screw hole, an annular groove is provided on the outer side of the spacer (5), and the lower end of the set screw (10) is pressed into the annular groove to limit the axial movement of the spacer (5).
3. A tooling mechanism for precise rotation control according to claim 2, characterized in that: An annular wear-resistant retaining ring (8) is sleeved on the rotating shaft (7), and the wear-resistant retaining ring (8) is located between the end surface of the motor base (4) and the rolling bearing (6).