A high-precision spindle positioning mechanism for a CNC boring machine

By using an infrared rangefinder and a positioning and detection component driven by a servo motor, precise positioning of the CNC boring machine spindle and moving worktable is achieved, solving the problem of insufficient positioning accuracy in existing technologies and improving machining quality and efficiency.

CN224273394UActive Publication Date: 2026-05-26JIANGSU GUOWEI ENG MACHINERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU GUOWEI ENG MACHINERY CO LTD
Filing Date
2025-06-27
Publication Date
2026-05-26

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Abstract

This utility model discloses a high-precision spindle positioning mechanism for a CNC boring machine, relating to the field of positioning and detection technology. The utility model includes a CNC boring machine, on which a positioning and detection component is installed for positioning and detecting the rotation of the boring machine spindle. A controller is fixedly mounted on the surface of the CNC boring machine. A movement detection and positioning component is installed on the bed and the moving worktable of the CNC boring machine for positioning and detecting the displacement of the moving worktable. This utility model uses the positioning and detection component to position and detect the rotation of the boring machine spindle, ensuring precise spindle alignment. The movement detection and positioning component, installed on the bed and the moving worktable, is used to move the worktable within the bed, thereby achieving precise positioning and detection of the moving worktable's position. The controller controls and monitors the entire positioning and detection process, ensuring the accuracy and stability of the positioning and detection.
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Description

Technical Field

[0001] This utility model relates to the field of positioning and detection technology, specifically to a high-precision spindle positioning mechanism for a CNC boring machine. Background Technology

[0002] In the field of modern machining, CNC boring machines, as high-precision and high-efficiency machining equipment, are widely used for hole machining of large parts. The positioning accuracy of its spindle directly affects the machining quality and production efficiency of the parts. However, existing technologies have many shortcomings in CNC boring machine spindle positioning.

[0003] Traditional CNC boring machines rely primarily on simple devices such as mechanical stops and photoelectric switches for spindle positioning. While mechanical stop positioning is simple in structure and low in cost, its positioning accuracy is greatly affected by mechanical wear and installation errors, and it is difficult to adapt to the diverse requirements of different machining programs for spindle position. Although existing photoelectric switch positioning methods have improved positioning accuracy and automation to some extent, they are susceptible to interference from external light, dust, etc., resulting in poor stability and affecting the reliability of spindle positioning.

[0004] To address this, a high-precision spindle positioning mechanism for CNC boring machines is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a high-precision spindle positioning mechanism for a CNC boring machine in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] A high-precision spindle positioning mechanism for a CNC boring machine includes a CNC boring machine, a positioning detection component on the CNC boring machine for positioning detection when the boring machine spindle rotates, a controller fixedly mounted on the surface of the CNC boring machine, and a movement detection positioning component on the bed and the moving worktable of the CNC boring machine for positioning detection of the displacement of the moving worktable.

[0008] Furthermore, the CNC boring machine includes a bed and a movable worktable. A servo motor is fixedly installed on one side wall of the bed, and a threaded rod is fixedly connected to the output end of the servo motor so as to drive the threaded rod to rotate, thereby driving the movable worktable to move within the bed. A boring machine spindle is provided on the other side wall of the bed, and a control box is fixedly installed on the bed.

[0009] Furthermore, the positioning detection component includes a mounting base fixedly installed on the surface of the bed. An adjusting screw is threaded into one side wall of the mounting base. A mounting plate is rotatably mounted on one end of the adjusting screw, and a knob is fixedly mounted on the other end of the adjusting screw. A guide rod is fixedly inserted into the mounting plate and is movably inserted into the mounting base. A detection positioning plate is movably inserted into the end of the guide rod. A spring is sleeved on the surface of the guide rod, and the two ends of the spring are fixedly connected to the opposite surfaces of the mounting plate and the detection positioning plate, respectively.

[0010] Furthermore, a first infrared rangefinder is fixedly mounted on the surface of the mounting plate, and a first infrared receiver is embedded on the surface of the detection and positioning plate. The first infrared rangefinder and the first infrared receiver are arranged in a corresponding manner.

[0011] Furthermore, the motion detection and positioning component includes a second infrared rangefinder inserted into one side wall of the bed, a through slot is provided on the surface of the mobile worktable, and a second infrared receiver is embedded on the surface of the second infrared rangefinder, with the through slot and the second infrared receiver being arranged in a corresponding manner.

[0012] Furthermore, protective shells are fixedly installed on the inner walls of both sides of the bed, and the protective shells are movably inserted into the through grooves on the surface of the movable worktable.

[0013] The beneficial effects of this utility model are as follows:

[0014] The rotation of the boring machine spindle is located and detected by a positioning detection component to ensure precise spindle alignment. A moving detection positioning component is installed on the machine bed and the moving worktable to move the worktable within the machine bed, thereby achieving precise positioning detection of the moving worktable's position. The entire positioning detection process is controlled and monitored by a controller to ensure the accuracy and stability of the positioning detection. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a partial exploded view of this utility model;

[0017] Figure 3 This is a schematic diagram of the mobile workbench of this utility model;

[0018] Figure 4 This is a schematic diagram of the positioning and detection component of this utility model;

[0019] Figure 5 This is a cross-sectional view of the positioning and detection component of this utility model;

[0020] Figure 6 This is a utility model Figure 5 Enlarged view of part A;

[0021] Reference numerals: 1. Bed; 2. Moving worktable; 3. Servo motor; 31. Threaded rod; 4. Boring machine spindle; 5. Positioning detection assembly; 501. Mounting base; 502. Adjusting screw; 503. Knob; 504. Mounting plate; 505. Guide rod; 506. Detection and positioning plate; 507. Spring; 508. First infrared receiver; 509. First infrared rangefinder; 6. Controller; 7. Moving detection and positioning assembly; 701. Second infrared rangefinder; 702. Through slot; 703. Second infrared receiver; 704. Protective housing; 8. Control box. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] like Figures 1 to 6 As shown, a high-precision spindle positioning mechanism for a CNC boring machine includes a CNC boring machine and a positioning detection component 5, which is used to perform positioning detection when the boring machine spindle 4 of the CNC boring machine rotates; as shown Figure 4 , Figure 5and Figure 6 As shown, specifically, the positioning detection component 5 includes a mounting base 501 fixedly installed on the surface of the bed 1. An adjusting screw 502 is threaded into one side wall of the mounting base 501. A mounting plate 504 is rotatably installed at one end of the adjusting screw 502, and a knob 503 is fixedly installed at the other end of the adjusting screw 502. A guide rod 505 is fixedly inserted into the mounting plate 504. The guide rod 505 is movably inserted into the mounting base 501. A detection positioning plate 506 is movably inserted into the end of the guide rod 505. A spring 507 is sleeved on the surface of the guide rod 505, and the two ends of the spring 507 are fixedly connected to the opposite surfaces of the mounting plate 504 and the detection positioning plate 506, respectively.

[0027] More specifically, the position of the mounting plate 504 is adjusted by rotating the adjusting screw 502. The guide rod 505 is movably inserted into the mounting base 501, and its end is connected to the detection positioning plate 506. Driven by the adjusting screw 502, the guide rod 505 drives the detection positioning plate 506 to move, so that the detection positioning plate 506 contacts the boring machine spindle 4, thereby realizing the positioning detection of the boring machine spindle 4. The two ends of the spring 507 are connected to the mounting plate 504 and the detection positioning plate 506 respectively, playing the role of buffering and resetting.

[0028] In some practical applications, a first infrared rangefinder 509 is fixedly mounted on the surface of the mounting plate 504, and a first infrared receiver 508 is embedded on the surface of the detection and positioning plate 506. The first infrared rangefinder 509 and the first infrared receiver 508 are arranged in a corresponding manner.

[0029] More specifically, when the detection positioning plate 506 moves, the first infrared rangefinder 509 measures the distance between itself and the first infrared receiver 508 in real time, thereby achieving accurate detection of the position of the boring machine spindle 4 when it rotates. The infrared ranging method has a fast response and high accuracy, which can effectively improve the efficiency and accuracy of positioning detection.

[0030] A controller 6 is fixedly mounted on the surface of the CNC boring machine. A movement detection and positioning component 7 is installed on the bed 1 and the moving worktable 2 of the CNC boring machine for positioning and detecting the displacement of the moving worktable 2; for example... Figure 2 and Figure 3 As shown, specifically, the motion detection and positioning component 7 includes a second infrared rangefinder 701 inserted into one side wall of the bed 1, a through groove 702 is provided on the surface of the movable worktable 2, and a second infrared receiver 703 is embedded on the surface of the second infrared rangefinder 701, with the through groove 702 and the second infrared receiver 703 being arranged in a corresponding manner.

[0031] More specifically, when the movable worktable 2 moves within the bed 1, the second infrared rangefinder 701 continuously measures the distance between itself and the second infrared receiver 703, thereby enabling real-time monitoring of the displacement of the movable worktable 2.

[0032] In some practical applications, protective shells 704 are fixedly installed on the inner walls of both sides of the bed 1, and the protective shells 704 are movably inserted into the through grooves 702 on the surface of the movable worktable 2.

[0033] More specifically, by inserting the protective shell 704 into the through groove 702 on the surface of the movable worktable 2, the second infrared rangefinder 701 and the second infrared receiver 703 are protected during the movement of the movable worktable 2, preventing the entry of impurities such as cutting fluid and debris.

[0034] like Figure 1 and Figure 2 As shown, in some practical applications, a CNC boring machine includes a bed 1 and a moving worktable 2. A servo motor 3 is fixedly installed on one side wall of the bed 1, and a threaded rod 31 is fixedly connected to the output end of the servo motor 3 so that the threaded rod 31 is driven to rotate by the servo motor 3, which is used to drive the moving worktable 2 to move within the bed 1. A boring machine spindle 4 is provided on the other side wall of the bed 1, and a control box 8 is fixedly installed on the bed 1.

[0035] More specifically, the servo motor 3 drives the threaded rod 31 to rotate, which in turn drives the movable worktable 2 to move precisely within the bed 1. The boring machine spindle 4 on the other side of the bed 1 is used to clamp the cutting tool and perform cutting operations, while the control box 8 is used to install and protect the electrical control system to ensure stable operation of the equipment.

[0036] In summary: When the CNC boring machine is working, the rotation of the boring machine spindle 4 is positioned and detected by the positioning detection component 5 to ensure precise spindle alignment. The movement detection positioning component 7 is installed on the bed 1 and the moving worktable 2 to move the worktable 2 within the bed 1, thereby achieving precise positioning detection of the position of the moving worktable 2. The controller 6 controls and monitors the entire positioning detection process to ensure the accuracy and stability of the positioning detection.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-precision spindle positioning mechanism for a CNC boring machine, characterized in that, The CNC boring machine is equipped with a positioning detection component (5) for positioning detection when the boring spindle (4) of the CNC boring machine rotates. A controller (6) is fixedly installed on the surface of the CNC boring machine. A movement detection positioning component (7) is installed on the bed (1) and the moving worktable (2) of the CNC boring machine for positioning detection of the displacement of the moving worktable (2).

2. The high-precision spindle positioning mechanism for a CNC boring machine according to claim 1, characterized in that, The CNC boring machine includes a bed (1) and a moving worktable (2). A servo motor (3) is fixedly installed on one side wall of the bed (1), and a threaded rod (31) is fixedly connected to the output end of the servo motor (3) so that the threaded rod (31) is driven to rotate by the servo motor (3) to drive the moving worktable (2) to move within the bed (1). A boring machine spindle (4) is provided on the other side wall of the bed (1), and a control box (8) is fixedly installed on the bed (1).

3. The high-precision spindle positioning mechanism for a CNC boring machine according to claim 1, characterized in that, The positioning detection component (5) includes a mounting base (501) fixedly installed on the surface of the bed (1). An adjusting screw (502) is threaded into one side wall of the mounting base (501). A mounting plate (504) is rotatably installed at one end of the adjusting screw (502). A knob (503) is fixedly installed at the other end of the adjusting screw (502). A guide rod (505) is fixedly inserted into the mounting plate (504). The guide rod (505) is movably inserted into the mounting base (501). A detection positioning plate (506) is movably inserted into the end of the guide rod (505). A spring (507) is sleeved on the surface of the guide rod (505). The two ends of the spring (507) are fixedly connected to the opposite surfaces of the mounting plate (504) and the detection positioning plate (506), respectively.

4. The high-precision spindle positioning mechanism for a CNC boring machine according to claim 3, characterized in that, The first infrared rangefinder (509) is fixedly mounted on the surface of the mounting plate (504), and the first infrared receiver (508) is embedded in the surface of the detection and positioning plate (506). The first infrared rangefinder (509) and the first infrared receiver (508) are arranged in a corresponding manner.

5. A high-precision spindle positioning mechanism for a CNC boring machine according to claim 1, characterized in that, The mobile detection and positioning component (7) includes a second infrared rangefinder (701) inserted into one side wall of the bed (1). The surface of the mobile worktable (2) is provided with a through groove (702), and the surface of the second infrared rangefinder (701) is embedded with a second infrared receiver (703). The through groove (702) and the second infrared receiver (703) are arranged in a corresponding manner.

6. A high-precision spindle positioning mechanism for a CNC boring machine according to claim 5, characterized in that, The inner walls on both sides of the bed (1) are fixedly installed with protective shells (704), and the protective shells (704) are movably inserted into the through grooves (702) on the surface of the movable worktable (2).