A simple two-stage stepped hole axial positioning device

The two-stage stepped hole axial positioning device, driven by the guide rail base and the knurled handle, solves the problem of inaccurate positioning of stepped holes in traditional lathe machining, improves machining efficiency and accuracy, and is particularly suitable for machining products such as cup-shaped gear shapers.

CN224390534UActive Publication Date: 2026-06-23GUIYANG YONGZE CNC TOOLS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUIYANG YONGZE CNC TOOLS CO LTD
Filing Date
2025-07-30
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Traditional lathes suffer from problems such as large machining volume and inaccurate positioning when machining stepped holes, especially with cup-shaped gear shapers, resulting in low machining efficiency and reduced precision.

Method used

A two-stage stepped hole axial positioning device was designed, comprising a guide rail base, a knurled scale handle, and a sleeve-type positioning rod. The positioning block is adjusted by an adjustable slide and a locking screw. The knurled scale handle drives the guide composite and the square positioning screw to achieve precise axial displacement. The blocking screw and the positioning block cooperate to form a stable stepped hole positioning structure.

Benefits of technology

It enables the machining of stepped holes that is simple to operate, accurate in positioning, and highly stable, thereby improving machining efficiency and product quality. It is suitable for various lathe environments.

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Abstract

The utility model relates to lathe machining technical field discloses a simple two -stage stepped hole axial positioning device of operation, including guide rail base, scale knurl handle and sleeve type positioning rod, the guide rail base is equipped with guide rail slip mouth, and is installed in lathe through fixed screw, the guide rail base is equipped with adjustable sliding slot, and the adjustable sliding slot is slidably connected with adjustable positioning block, and is fixed through locking screw, the scale knurl handle is connected with the guide composite piece coaxially, and the guide composite piece is connected with square positioning screw in sleeve, the sleeve type positioning rod is sleeved in square positioning screw outside, and is positioned through blocking screw. The guide rail base and adjustable positioning block are arranged, so that the device can flexibly adjust the positioning position, and adapt to the stepped hole machining demand of different sizes. The design of scale knurl handle not only is convenient for operation, but also can drive the guide composite piece and square positioning screw through rotation to carry out accurate axial displacement, thereby ensuring the accuracy of positioning.
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Description

Technical Field

[0001] This utility model relates to the field of lathe machining technology, specifically a simple-to-operate two-stage stepped hole axial positioning device. Background Technology

[0002] In traditional lathe machining, especially when machining cup-shaped gear shapers or stepped holes in similar products, two main problems are often encountered: large machining volume and inaccurate positioning. These problems are particularly pronounced when using ordinary lathes.

[0003] Because machining stepped holes typically requires a large cutting amount, traditional CNC lathes often struggle to withstand excessive machining loads. During the machining process, the lathe may frequently alarm due to excessive cutting forces, or even interrupt the machining process, leading to reduced production efficiency.

[0004] Traditional lathes often require the workpiece to be clamped twice to complete the machining of stepped holes. This not only increases the labor intensity, but also may lead to a decrease in machining accuracy due to positioning errors or improper operation during the two clamping processes, thus affecting the quality of the product.

[0005] Therefore, based on the above-mentioned technical problems, it is necessary for those skilled in the art to develop a simple two-stage stepped hole axial positioning device. Utility Model Content

[0006] The purpose of this invention is to provide a simple two-stage stepped hole axial positioning device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A simple-to-operate two-stage stepped hole axial positioning device includes a guide rail base, a knurled scale handle, and a sleeve-type positioning rod.

[0009] The guide rail base is provided with a guide rail slide and is installed on the lathe by fixing screws;

[0010] The guide rail base is provided with an adjustable slide groove, and an adjustable positioning block is slidably connected in the adjustable slide groove and fixed by locking screws;

[0011] The knurled handle is coaxially connected to a guide composite, and a square positioning screw is sleeved inside the guide composite.

[0012] The sleeve-type positioning rod is sleeved on the outside of the square positioning screw and is limited by the blocking screw.

[0013] As a preferred technical solution, one end of the guide composite is threadedly connected to the knurled handle.

[0014] As a preferred technical solution, the adjustable slide is arranged along the length of the guide rail base, and the adjustable positioning block is adjusted and fixed in the adjustable slide by locking screws.

[0015] As a preferred technical solution, when the knurled handle rotates, the drive guide composite component causes the square positioning screw to move axially.

[0016] As a preferred technical solution, the axial travel of the sleeve positioning rod is limited by the relative position of the blocking screw and the adjustable positioning block, forming a two-stage stepped hole axial positioning structure.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention relates to a simple two-stage stepped hole axial positioning device. The guide rail base and adjustable positioning block allow for flexible adjustment of the positioning position, adapting to the machining needs of stepped holes of different sizes. The knurled scale handle not only facilitates operation but also enables precise axial displacement via rotational drive of the guide composite and square positioning screw, ensuring positioning accuracy. The combination of the sleeve-type positioning rod and the stopping screw further enhances the stability and reliability of positioning, effectively avoiding positioning errors during machining. Furthermore, this device features a simple structure and convenient operation, significantly improving machining efficiency and product quality. It is suitable for various lathe machining environments, particularly for machining stepped holes in cup-shaped gear shapers or similar products, demonstrating significant technical advantages and application value. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the initial state structure of a simple two-stage stepped hole axial positioning device.

[0020] Figure 2 This is a schematic diagram of the usage state of a simple two-stage stepped hole axial positioning device.

[0021] In the attached diagram, the following are the reference numerals: 1. Guide rail base; 11. Guide rail slide; 12. Fixing screw; 13. Adjustable slide groove; 14. Adjustable positioning block; 15. Locking screw; 2. Knurled scale handle; 21. Guide composite component; 22. Square positioning screw; 3. Sleeve positioning rod; 31. Blocking screw. Detailed Implementation

[0022] The features and exemplary embodiments of various aspects of this utility model will now be described in detail. To make the objectives, technical solutions, and advantages of this utility model clearer, the following description, in conjunction with the accompanying drawings and specific embodiments, will provide a further detailed description. For those skilled in the art, this utility model can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of this utility model by illustrating examples.

[0023] like Figure 1 , Figure 2 As shown, this utility model provides a simple two-stage stepped hole axial positioning device: it includes a guide rail base 1, which is installed on a lathe at an appropriate position by fixing screws 12. The guide rail base 1 has a guide rail slide 11 for mounting an adjustable slide groove 13. An adjustable positioning block 14 is slidably connected within the adjustable slide groove 13 and fixed by locking screws 15 to achieve axial position adjustment and fixation.

[0024] like Figure 1 As shown, the knurled handle 2 is threaded to one end of the guide composite 21, and a square positioning screw 22 is sleeved inside the guide composite 21. The other end of the square positioning screw 22 is connected to the sleeve positioning rod 3. The sleeve positioning rod 3 is sleeved on the outside of the square positioning screw 22 and is limited by the blocking screw 31 to control the axial travel of the sleeve positioning rod 3.

[0025] In use, such as Figure 2 As shown, the operator drives the guide composite 21 and the square positioning screw 22 to make precise axial displacement by rotating the knurled handle 2. Since the axial travel of the sleeve positioning rod 3 is limited by the relative position of the blocking screw 31 and the adjustable positioning block 14, a two-stage stepped hole axial positioning structure can be formed.

[0026] During the machining process, the position of the adjustable positioning block 14 is first adjusted according to the size of the stepped hole in the workpiece and fixed with the locking screw 15. Then, the sleeve positioning rod 3 is adjusted to the required position by rotating the knurled handle 2 and limited by the blocking screw 31. In this way, when the workpiece is clamped on the lathe, the sleeve positioning rod 3 can accurately position the stepped hole of the workpiece, ensuring machining accuracy.

[0027] This utility model's two-stage stepped hole axial positioning device, through the aforementioned structural design, achieves the characteristics of simple operation, accurate positioning, compact structure, and strong adaptability. It is not only suitable for machining stepped holes in cup-shaped gear shapers or similar products, but can also be widely applied in various lathe machining environments, improving machining efficiency and product quality.

[0028] The working principle and usage process of this utility model: After assembling the various components of this solution in sequence, work according to the above implementation methods according to actual needs to complete all working steps.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0030] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. 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.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] The embodiments described above are not exhaustive, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the invention, enabling those skilled in the art to effectively utilize the invention and its modifications. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the protection scope of the invention.

Claims

1. A simple-to-operate two-stage stepped hole axial positioning device, characterized in that, It includes a guide rail base (1), a knurled scale handle (2), and a sleeve-type positioning rod (3); The guide rail base (1) is provided with a guide rail slide (11) and is installed on the lathe by fixing screws (12); The guide rail base (1) is provided with an adjustable slide groove (13), and an adjustable positioning block (14) is slidably connected in the adjustable slide groove (13) and fixed by a locking screw (15). The knurled handle (2) is coaxially connected to the guide composite (21), and a square positioning screw (22) is sleeved inside the guide composite (21); The sleeve-type positioning rod (3) is sleeved on the outside of the square positioning screw (22) and is limited by the blocking screw (31).

2. The simple-to-operate two-stage stepped hole axial positioning device according to claim 1, characterized in that: One end of the guide composite (21) is threadedly connected to the knurled handle (2).

3. The simple-to-operate two-stage stepped hole axial positioning device according to claim 1, characterized in that: The adjustable slide (13) is arranged along the length of the guide rail base (1), and the adjustable positioning block (14) is adjusted and fixed in the axial position within the adjustable slide (13) by means of locking screws (15).

4. The simple-to-operate two-stage stepped hole axial positioning device according to claim 1, characterized in that: When the knurled handle (2) rotates, the drive guide composite (21) causes the square positioning screw (22) to move axially.

5. The simple-to-operate two-stage stepped hole axial positioning device according to claim 1, characterized in that: The axial travel of the sleeve positioning rod (3) is limited by the relative position of the blocking screw (31) and the adjustable positioning block (14), forming a two-stage stepped hole axial positioning structure.