Universal cutter bar for multi-size blades
By designing a universal tool holder with multiple blade sizes and adopting a structure that integrates an adjustable pad with the blade groove, the problems of increased tool holder cost and workpiece size error are solved, achieving convenient blade installation and precise workpiece machining.
Patent Information
- Application Number
- CN202520504507.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-21
AI Technical Summary
Existing tool holders can only accommodate one type of insert due to the fixed size of the insert groove. Changes in insert size after regrinding require an increase in the number of tool holders, increasing costs. Furthermore, the small differences in the size of the adjusting blocks and the difficulty in accurately aligning them lead to workpiece dimensional errors.
A universal tool holder with multiple blade sizes is designed, which uses an integrally molded adjusting pad that fits the blade groove. The two side walls of the adjusting pad have the same thickness and are installed with screws to ensure convenient and precise installation.
It improves the ease of blade installation and the accuracy of workpiece machining, reduces installation errors, and lowers costs.
Smart Images

Figure CN223862880U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of cutter bar structure, more particularly to a universal cutter bar for multiple sizes of blades. BACKGROUND
[0002] At present, due to the high cost of blades, in order to save costs, when the blades are worn, the blades are usually treated by grinding for reuse. However, the existing cutter bar can only install one blade (a single size blade) due to the fixed size of the blade groove, and the size of the ground blade will be smaller, which can only be installed on another cutter bar. Therefore, repeated grinding several times will increase the number of cutter bars and undoubtedly increase the cost. To solve this problem, the existing technology increases two adjusting blocks with the same size between the two side walls of the blade groove and the blade. With the change of the size of the ground blade, only the matching adjusting block needs to be replaced, so that the installation of multiple size blades can be realized.
[0003] However, on the one hand, the size specifications of the adjusting blocks are numerous, and the size difference is small, which is difficult to distinguish with the naked eye. When selecting two adjusting blocks, the technician may select two adjusting blocks with different sizes, which will cause the size deviation of the workpiece cut by the blade. On the other hand, the side surface of the adjusting block in contact with the blade groove and the side surface of the adjusting block in contact with the blade are respectively a plane and an inclined plane. In this way, the adjusting block has multiple installation directions and may be installed in reverse, resulting in a size error of the cut workpiece.
[0004] Therefore, it is an urgent problem for those skilled in the art to provide a universal cutter bar for multiple size blades. INVENTION CONTENTS
[0005] Therefore, the utility model provides a universal cutter bar for multiple size blades, which is more convenient to install and ensures the accuracy of the workpiece processing size.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0007] A universal cutter bar for multiple size blades, comprising a cutter bar and a blade installed in the blade groove of the cutter bar, further comprising an adjusting pad block installed between the blade groove and the blade, the adjusting pad block is integrally formed and is shaped to fit the side wall of the blade groove; the thickness of the two side walls of the adjusting pad block is consistent.
[0008] By adopting the above technical scheme, the utility model has the following beneficial effects:
[0009] When in use, the adjusting pad block can be directly installed between the blade groove and the blade, without considering the size difference and the installation direction, which greatly improves the convenience of installing the cutter pad and ensures the accuracy of the workpiece processing size.
[0010] Furthermore, the adjusting pad is V-shaped and chamfered.
[0011] Furthermore, the two side walls of the adjusting pad are respectively mounted on the two side walls of the blade groove by screws.
[0012] Furthermore, the adjusting pad is made of 42CrMo material. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0014] Fig. 1 The attached figure is a structural schematic diagram of a universal tool holder with multiple blade sizes provided by this utility model;
[0015] Fig. 2 The attached figure is a schematic diagram of the structure of the adjusting pad provided by this utility model. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] like Figs. 1-2 As shown in the figure, this utility model discloses a universal tool holder with multiple blade sizes, including a tool holder 1, a blade 2 installed in a blade groove 11 of the tool holder 1, and an adjusting shim 3 installed between the blade groove 11 and the blade 2. The adjusting shim 3 is integrally formed and adapted to the shape of the side wall of the blade groove 11. In this embodiment, the adjusting shim 3 is V-shaped and chamfered. The two side walls of the adjusting shim 3 are respectively installed on the two side walls of the blade groove 11 by screws; the two side walls of the adjusting shim 3 have the same thickness. When using this utility model, the adjusting shim 3 can be directly installed between the blade groove 11 and the blade 2 without considering size differences or installation direction, which greatly improves the convenience of shim installation and ensures the accuracy of workpiece machining dimensions.
[0018] Of course, in order to secure the blade 2, a pressure plate 4 and a fastening screw 5 are also included. The pressure plate 4 is installed on the blade holder 1 by the fastening screw 5 and is pressed against the top of the blade 2 to press the blade 2 firmly and secure the blade 2 in the blade groove 11.
[0019] Specifically, the adjusting pad 3 is made of 42CrMo material.
[0020] In order to further optimize the technical scheme of the utility model, the blade 2 bottom and the blade groove 11 are provided with the blade pad 6, the impact force is dispersed, the abrasion is reduced, and the cutter bar 1 and the blade 2 are protected.
[0021] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between various embodiments can be referred to each other. For the device disclosed by the embodiments, since it corresponds to the method disclosed by the embodiments, the description is relatively simple, and the related parts can be referred to the method part.
[0022] The above description of the disclosed embodiments enables those skilled in the art to implement or use the utility model. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A universal tool holder with multiple blade sizes, comprising a tool holder and blades mounted in blade grooves within the tool holder, characterized in that, It also includes an adjusting pad installed between the blade groove and the blade, the adjusting pad being integrally formed and adapted to the shape of the side wall of the blade groove; the two side walls of the adjusting pad have the same thickness.
2. The universal tool holder with multiple blade sizes according to claim 1, characterized in that, The adjusting pad is V-shaped and has a chamfered edge.
3. A universal tool holder with multiple blade sizes according to claim 1 or 2, characterized in that, The two side walls of the adjusting pad are respectively installed on the two side walls of the blade groove by screws.
4. A universal tool holder with multiple blade sizes according to claim 3, characterized in that, The adjusting pad is made of 42CrMo material.