A polishing device for metal tool machining

By combining a bidirectional threaded drive assembly and a flexible positioning module, precise positioning and stable polishing are achieved during the metal cutting process, solving the problems of inaccurate positioning and surface damage in existing technologies, and improving processing quality and efficiency.

CN224587638UActive Publication Date: 2026-08-04NANJING JINYU CUTTING TOOLS MFR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING JINYU CUTTING TOOLS MFR CO LTD
Filing Date
2025-04-09
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

In existing metal cutting tool processing, positioning devices are difficult to adapt to tools of different widths, resulting in insufficient positioning accuracy, which leads to offset or uneven flexible positioning force, affecting the processing quality. Furthermore, traditional positioning methods are prone to causing scratches on the tool surface and poor polishing uniformity, failing to meet high precision requirements.

Method used

It adopts a bidirectional threaded drive assembly and a flexible positioning module, and achieves precise positioning and stable limiting of the tool through a linkage adjustment mechanism. Combined with an elastic deformation layer and rolling element array, it reduces friction damage. A horizontal conveyor and polishing wheel set are used to ensure stable conveying and uniform polishing.

Benefits of technology

It improves the versatility and accuracy of tool positioning, reduces surface friction damage, ensures the stability and consistency of the polishing process, and enhances machining accuracy and quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a polishing device for metal cutter processing, including cutter positioning module, flexible clamping module, material conveying module and polishing execution module. Cutter positioning module includes the spacing unit and linkage adjusting mechanism of symmetrical setting, and linkage adjusting mechanism passes through the synchronous adjustment clamping interval of spacing unit through two -way screw thread transmission subassembly, and the adaptation different width cutter. Flexible clamping module is located at the working surface of spacing plate, including elastic deformation layer and rolling body array, and the surface damage of cutter is reduced through rolling contact, and the cutter is allowed to convey steadily under the clamping state. Material conveying module adopts horizontal conveyer, and is through between spacing unit, ensures that cutter is continuously stable conveying. Polishing execution module includes rotary driver and polishing wheel group, and the cutter is polished efficiently. The device is through the combination of adjustable clamping, rolling support and continuous conveying, realizes the accurate positioning and efficient polishing of cutter, improves the processing precision, and is suitable for the automatic processing of cutter.
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Description

Technical Field

[0001] This utility model relates to the field of polishing equipment technology, and in particular to a polishing equipment for metal cutting tool processing. Background Technology

[0002] In the machining process of metal cutting tools, precise and stable positioning is crucial for polishing quality. In existing technologies, most tool positioning devices employ fixed structures or unilateral adjustment methods, which are difficult to adapt to tools of different widths and lack sufficient positioning accuracy. This can easily lead to tool misalignment or uneven force during flexible positioning, affecting machining quality.

[0003] In terms of tool surface protection, traditional positioning methods mostly rely on rigid contact, which can easily cause scratches or deformation on the tool surface, affecting the final polishing effect. Furthermore, the conveying and actuating mechanisms of existing polishing devices struggle to ensure stable tool positioning, resulting in poor polishing uniformity and failing to meet high-precision machining requirements. Therefore, there is an urgent need for a tool polishing device that can precisely adjust the positioning distance, stably limit tool movement, and reduce surface damage, thereby improving machining accuracy and polishing quality. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] Therefore, to solve the above-mentioned technical problems, this utility model provides the following technical solution: a polishing device for metal cutting tool processing, comprising... The tool positioning module includes two sets of symmetrically arranged limiting plates and a linkage adjustment mechanism connecting the two sets of limiting plates. The limiting plates have opposite limiting working surfaces. The linkage adjustment mechanism includes a bidirectional threaded transmission assembly and a connecting rod assembly connected to the top of the limiting plates. The distance between the two sets of limiting plates is adjusted synchronously by rotating the operating end to drive the bidirectional threaded transmission assembly. A flexible positioning module is disposed on the limiting working surface of the limiting plate, including an elastic deformation layer and a rolling element array embedded in the surface of the elastic deformation layer, wherein the spherical part of the rolling element array is exposed on the working surface to form rolling contact. The polishing execution module, located above the material conveying module, includes a motor and a polishing wheel set driven by the motor. The polishing wheel set includes a coarse grinding wheel and a fine grinding wheel.

[0006] As a preferred embodiment of the polishing device for metal cutting tool processing described in this utility model, the bidirectional threaded transmission assembly is provided in two sets, which are respectively arranged at the front and rear ends of the material conveying module. Each set of bidirectional threaded transmission assemblies has a set of limiting plates on its left and right sides. The two sets of bidirectional threaded transmission assemblies are controlled by a transmission control module to achieve synchronous rotation.

[0007] In a preferred embodiment of the polishing device for metal cutting tool processing described in this utility model, the transmission control module includes a worm gear and a worm. The worm gear is fixed to the end of the thread transmission assembly, the worm is mechanically connected to the worm gear, and the end of the worm is fixedly connected to the operating end.

[0008] As a preferred embodiment of the polishing device for metal cutting tool processing described in this utility model, the bidirectional threaded transmission assembly is a ball screw structure, with external thread sections forming opposite directions at both ends. Each of the two external thread sections is mechanically connected to a set of adjusting sliders, and the adjusting sliders are fixedly connected to the connecting rod assembly.

[0009] In a preferred embodiment of the polishing device for metal cutting tool processing described in this utility model, the connecting rod assembly includes connecting rods that are fixedly connected to the top ends of two sets of limiting plates, and each set of connecting rods has an adjusting slider connected to its top end.

[0010] In a preferred embodiment of the polishing device for metal cutting tool processing according to the present invention, the tool positioning module further includes a guide component, which includes a guide rail arranged along the adjustment direction, and the adjusting slider is slidably connected to the guide rail.

[0011] As a preferred embodiment of the polishing device for metal cutting tool processing described in this utility model, the rolling element array includes a plurality of spherical steel balls arranged in a rectangular array. The steel balls are rotatably mounted on the surface of the elastic deformation layer, and one end of the steel balls is exposed on the working surface.

[0012] As a preferred embodiment of the polishing device for metal cutting tool processing described in this utility model, the device further includes a material conveying module, including a horizontal conveyor that passes through the two sets of limiting plates, the conveying direction of which is parallel to the length direction of the limiting plates, and the conveying surface is arranged with a gap between it and the bottom surface of the limiting plates.

[0013] The beneficial effects of this utility model are: 1. This utility model adopts a bidirectional threaded transmission assembly, which realizes synchronous adjustment of positioning distance through the thread structure with opposite rotation direction, and is suitable for tools of different sizes, improving the versatility of the positioning device; the connecting rod assembly connects to the limiting plate to ensure synchronous positioning adjustment, avoid tool tilting, and improve positioning accuracy.

[0014] 2. The flexible positioning module in this utility model adopts an elastic deformation layer and a rolling element array. By rolling contact, it reduces frictional damage to the tool surface and effectively protects the machined surface. The spherical steel balls are evenly arranged to ensure that the force for flexible positioning of the tool sidewall is evenly distributed, avoiding excessive local pressure that could cause tool deformation.

[0015] 3. The material conveying module of this utility model uses a horizontal conveyor and a limiting plate in combination to improve the conveying stability of the tool during the polishing process and reduce the offset error; the polishing execution module combines a motor and a polishing wheel set to ensure that the tool surface is uniformly stressed and improve the polishing consistency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a bottom view of the structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the installation structure of the transmission control module of this utility model.

[0019] In the diagram: 100, tool positioning module; 101, limit plate; 102, linkage adjustment mechanism; 102a, bidirectional threaded transmission assembly; 102a-1, external thread section; 102a-2, adjusting slider; 102b, connecting rod assembly; 103, guide assembly; 103a, guide rail; 104, transmission control module; 104a, worm gear; 104b, worm; 104c, operating end; 200. Flexible positioning module; 201. Elastic deformation layer; 202. Rolling element array; 202a. Steel ball; 300. Material conveying module; 301. Horizontal conveyor; 400. Polishing execution module; 401. Motor; 402. Polishing wheel set. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0023] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0024] Example 1 Reference Figures 1-3 The first embodiment of this utility model provides a polishing device for metal cutting tool processing, the structure of which includes: a tool positioning module 100, a flexible positioning module 200, a material conveying module 300 and a polishing execution module 400. The modules work together to achieve precise positioning and efficient polishing of the metal cutting tool.

[0025] Tool positioning module 100; The tool positioning module 100 is used to stably position the metal tool to be polished. It includes two sets of symmetrically arranged limiting plates 101, and a linkage adjustment mechanism 102 is provided between the two sets of limiting plates 101. Through the synchronous adjustment of the linkage adjustment mechanism 102, the tool is accurately positioned. The limiting plates 101 are set on the left and right sides of the device. Each limiting plate 101 has a corresponding limiting working surface on its inner side for positioning the tool and limiting its movement. (The flexible positioning force of the limiting plate 101 is slightly less than the friction between the tool and the horizontal conveyor 301, so that the conveyor can still drive the tool to move. It is worth noting that the flexible positioning force of the limiting plate 101 can be controlled by adjusting the distance between the two sets of limiting plates 101 through the linkage adjustment mechanism 102.)

[0026] Flexible positioning module 200; To improve positioning stability and reduce positioning stress concentration, this device is equipped with a flexible positioning module 200 on the limiting working surface of the limiting plate 101. While ensuring stable positioning of the tool, it will not completely lock the tool, allowing it to still move in the conveying direction. Specifically, the elastic deformation layer 201 provides a controllable, flexible positioning force to ensure that the tool does not shift position when subjected to polishing action, while still allowing it to move forward under the drive of the horizontal conveyor 301. The rolling element array 202 (i.e., rolling steel balls 202a) is embedded on the positioning surface to reduce the friction between the cutter and the limiting plate 101, so that it can still slide smoothly in the positioning state, thereby moving synchronously with the horizontal conveyor 301.

[0027] Material conveying module 300; The material conveying module 300 includes a horizontal conveyor 301, which runs between two sets of limiting plates 101. Its conveying direction is parallel to the length direction of the limiting plates 101, and the conveying surface is spaced apart from the bottom surface of the limiting plates 101. Through this conveying mechanism, automatic tool conveying can be realized, improving processing efficiency. In actual application, the operator can control the speed of the horizontal conveyor 301 according to actual needs to ensure that its conveying speed matches the tool polishing rhythm, avoiding tool slippage or stagnation due to excessive conveying speed (the direct application of existing mature technology is not described in detail here).

[0028] Polishing execution module 400; The polishing execution module 400 is installed above the material conveying module 300 and includes a motor 401 and a polishing wheel set 402 driven by it. The polishing wheel set 402 includes a coarse grinding wheel and a fine grinding wheel. The motor 401 drives the polishing wheel set 402 to rotate at high speed. After each set of polishing wheels contacts the surface of the tool, the burrs on the surface of the tool are removed through the friction of the two-stage process, and the surface finish is improved.

[0029] The specific operation process of this device is as follows: The cutting tool is conveyed between the material conveying module 300 and the cutting tool positioning module 100; The linkage adjustment mechanism 102 makes the limiting plate 101 fit tightly against both sides of the tool, and the flexible positioning module 200 ensures the stability of the tool (this solution is mainly applied to rectangular tools) in limiting position. In the polishing execution module 400, the motor 401 drives the polishing wheel set 402 to rotate. The coarse-grained grinding wheel contacts the tool surface to quickly remove the excess material. In the second process, the fine-grained grinding wheel contacts the tool surface to improve the surface quality and reduce the roughness, thus completing the polishing. After polishing is completed, the horizontal conveyor 301 continues to transport the cutting tool to the next process.

[0030] Example 2 Reference Figures 1-3This is the second embodiment of the present invention, which differs from the first embodiment in that: this embodiment optimizes the tool positioning module 100, enabling precise adjustment of the positioning spacing to ensure stable positioning of tools of different widths, while improving the stability and safety of the adjustment system. It is suitable for processing equipment requiring high-precision tool positioning; specifically including: Limiting plate 101: Two sets of symmetrically arranged limiting mechanisms, with a limiting working surface on the inner side.

[0031] Bidirectional threaded drive assembly 102a: includes two threaded sections 102a-1 with opposite directions of rotation, used for synchronous adjustment of positioning distance.

[0032] Adjusting slider 102a-2: It engages with threaded section 102a-1 and is connected to connecting rod assembly 102b.

[0033] Linkage assembly 102b: connects the adjusting slider 102a-2 and the limiting plate 101 to ensure that the limiting plates 101 on both sides are adjusted synchronously.

[0034] Guide component 103: a guide rail 103a arranged along the adjustment direction, and an adjusting slider 102a-2 slidably connected to the guide rail 103a.

[0035] Transmission control module 104: Worm gear 104a: fixed to the end of the bidirectional threaded transmission assembly 102a; Worm 104b: meshes with worm wheel 104a and is fixed to operating end 104c; Operating terminal 104c: Used for manual or automatic adjustment of positioning spacing; The specific workflow is as follows: Rotate the operating end 104c to drive the worm gear 104b to rotate; The worm gear 104b drives the worm wheel 104a to rotate, thereby driving the bidirectional thread transmission assembly 102a to move; The two ends of the bidirectional threaded drive assembly 102a have opposite helical directions, causing the adjusting slider 102a-2 to move inward or outward synchronously; The connecting rod assembly 102b drives the limit plate 101 to adjust synchronously, thereby achieving precise adjustment of the tool positioning distance; The worm gear mechanism has a built-in self-locking feature that can stably maintain its positioning after adjustment. Even without applying additional force, it is not easy to loosen, thus ensuring the stable positioning of the tool.

[0036] This embodiment combines the precise adjustment capability of bidirectional threaded transmission with the stable control of worm gear-worm mechanism to form an efficient and safe tool positioning solution that can be widely applied to various high-precision metal tool machining scenarios.

[0037] This embodiment is applicable to automated tool processing lines, which can reduce manual intervention and improve production efficiency.

[0038] It is worth noting that the entire device is controlled by a controller. Since the controller is a common device and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0039] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A polishing device for metal cutting tool processing, characterized in that: include The tool positioning module (100) includes two sets of symmetrically arranged limiting plates (101) and a linkage adjustment mechanism (102) connecting the two sets of limiting plates (101). The limiting plates (101) have opposite limiting working surfaces. The linkage adjustment mechanism (102) includes a bidirectional threaded transmission assembly (102a) and a connecting rod assembly (102b) connected to the top of the limiting plates (101). The bidirectional threaded transmission assembly (102a) is driven by rotating the operating end (104c) to synchronously adjust the distance between the two sets of limiting plates (101). The flexible positioning module (200) is disposed on the limiting working surface of the limiting plate (101), including an elastic deformation layer (201) and a rolling element array (202) embedded in the surface of the elastic deformation layer (201), wherein the spherical part of the rolling element array (202) is exposed on the working surface to form rolling contact; The polishing execution module (400) is located above the material conveying module (300) and includes a motor (401) and a polishing wheel set (402) driven by it. The polishing wheel set (402) includes a coarse grinding wheel and a fine grinding wheel.

2. The polishing apparatus for metal cutting tool processing as described in claim 1, characterized in that: The bidirectional threaded transmission assembly (102a) is provided in two sets. The two sets of bidirectional threaded transmission assemblies (102a) are respectively arranged at the front and rear ends of the material conveying module (300). Each set of bidirectional threaded transmission assemblies (102a) has a set of limiting plates (101) arranged on the left and right sides. The two sets of bidirectional threaded transmission assemblies (102a) are controlled by the transmission control module (104) to achieve synchronous rotation.

3. The polishing apparatus for metal cutting tool processing as described in claim 2, characterized in that: The transmission control module (104) includes a worm gear (104a) and a worm (104b). The worm gear (104a) is fixed to the end of the thread transmission assembly (102a). The worm (104b) is mechanically connected to the worm gear (104a). The end of the worm (104b) is fixedly connected to the operating end (104c).

4. The polishing apparatus for metal cutting tool processing as described in claim 3, characterized in that: The bidirectional threaded transmission assembly (102a) is a ball screw structure, with oppositely helical external thread sections (102a-1) at both ends. Each of the two external thread sections (102a-1) is mechanically connected to an adjusting slider (102a-2), and the adjusting slider (102a-2) is fixedly connected to the connecting rod assembly (102b).

5. The polishing apparatus for metal cutting tool processing as described in claim 4, characterized in that: The linkage assembly (102b) includes connecting rods that are fixedly connected to the top ends of two sets of limiting plates (101), and each set of connecting rods has an adjusting slider (102a-2) connected to its top end.

6. The polishing apparatus for metal cutting tool processing as described in claim 5, characterized in that: The tool positioning module (100) further includes a guide component (103), which includes a guide rail (103a) arranged along the adjustment direction, and the adjusting slider (102a-2) is slidably connected to the guide rail (103a).

7. The polishing apparatus for metal cutting tool processing as described in claim 6, characterized in that: The rolling element array (202) includes a plurality of spherical steel balls (202a) arranged in a rectangular array. The steel balls (202a) are rotatably mounted on the surface of the elastic deformation layer (201), and one end of the steel ball (202a) is exposed on the working surface.

8. The polishing apparatus for metal cutting tool processing as described in claim 7, characterized in that: The device also includes a material conveying module (300), which includes a horizontal conveyor (301) that passes through the two sets of limiting plates (101), with its conveying direction parallel to the length direction of the limiting plates (101), and the conveying surface is arranged with a gap between it and the bottom surface of the limiting plates (101).