Machine tool cutting tool with a cushioning guard
Patent Information
- Application Number
- CN202522417332.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-14
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-11-14
AI Technical Summary
[0003]现有机床切削刀具在使用过程中存在明显不足:为保证切削稳定性,部分刀具采用刚性较强的刀杆设计,该方案虽能一定程度提升结构强度,但无法有效缓冲切削时产生的振动,长期使用易导致刀体出现损伤,进而缩短刀具整体使用寿命;在刀具底座与刀杆的连接方面,多数采用螺栓等紧固件进行固定,此方式虽能实现稳定连接,但拆装时需借助专用工具,操作步骤繁琐,且耗费较多时间,严重影响加工效率的提升,为此提出一种具有缓冲防护的机床切削刀具
[0016]本实用新型通过阻尼刀杆的设置,以及侧架、侧槽、楔形块、拉杆、复位弹簧与底座限位槽的配合,实现了双重优化:阻尼刀杆可缓冲切削振动,实现对刀体的防护,具有减少刀体因振动受损的好处,解决了传统刀具切削时振动易导致刀体损坏、缩短使用寿命的问题;楔形块与限位槽的卡合及拉杆控制的脱离结构,实现了底座与阻尼刀杆的快速拆装,安装时底座挤压楔形块使复位弹簧压缩,对齐后弹簧推动楔形块卡紧,拆卸时拉拉杆即可分离,具有操作便捷、无需复杂工具的好处,解决了传统刀具底座拆装繁琐、耗时久影响加工效率的问题。
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Figure CN224895777U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cutting technology, specifically to a machine tool cutting tool with buffer protection. Background Technology
[0002] Machine tool cutting tools are the core components for machining workpieces and are widely used in metal processing, machinery manufacturing and other fields. Their performance directly affects the accuracy, surface quality and overall smoothness of the machining process.
[0003] Existing machine tool cutting tools have significant shortcomings in use: To ensure cutting stability, some tools adopt a rigid tool holder design. While this approach can improve structural strength to some extent, it cannot effectively buffer vibrations generated during cutting. Long-term use can easily lead to damage to the tool body, thereby shortening the overall service life of the tool. Regarding the connection between the tool base and the tool holder, most tools are fixed with bolts or other fasteners. Although this method can achieve a stable connection, disassembly and assembly require special tools, making the operation cumbersome and time-consuming, which seriously affects the improvement of machining efficiency. Therefore, a machine tool cutting tool with buffer protection is proposed. Utility Model Content
[0004] In view of the shortcomings of the prior art, this utility model provides a machine tool cutting tool with buffer protection to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a machine tool cutting tool with buffer protection, comprising:
[0006] A damping tool holder and a base, wherein the base is located at one end of the damping tool holder, and a tool holder is fixed to one end of the base away from the damping tool holder. A fixing groove is provided inside the tool holder, and a tool body is provided inside the fixing groove.
[0007] The damping bar has side frames fixed on both the upper and lower sides near the base. The side frames have side grooves inside. A wedge block and a pull rod are installed in sequence from the inside to the outside of the side groove. The wedge block is slidably connected to the side groove, and the pull rod is fixedly connected to the wedge block. A return spring is installed inside the side groove outside the pull rod.
[0008] A limiting groove is provided on the outside of the base at the position corresponding to the wedge block, and the wedge block is adapted to the limiting groove;
[0009] The damping tool holder can buffer the vibration generated during cutting, effectively protect the tool body, reduce vibration damage to the tool body, and extend the tool body's service life. The cooperative structure of the side frame, side groove, wedge block, pull rod, return spring, and limit groove enables quick installation and disassembly between the base and the damping tool holder. No additional fixing tools are required during installation; simply pressing the wedge block against the base triggers the return spring's reset engagement. During disassembly, simply pulling the pull rod disengages the wedge block from the limit groove, greatly simplifying the installation and disassembly operations and avoiding the problems of cumbersome and time-consuming disassembly and assembly of traditional tool bases, which affect processing efficiency.
[0010] Preferably, a positioning cone is fixed to one end of the damping tool bar near the base, and the positioning cone is fixedly connected to the damping tool bar.
[0011] Preferably, a positioning groove is provided on one side of the interior of the base, and the positioning groove is integrally formed with the base. The positioning groove is adapted to the positioning cone rod, and the combination of the positioning cone rod and the positioning groove makes the base easy to position.
[0012] Preferably, a second shock-absorbing pad is embedded on both the front and rear sides of the blade body, and the second shock-absorbing pad is fixedly connected to the blade body. The second shock-absorbing pad is used to dampen the contact surface between the blade body and the blade holder.
[0013] Preferably, a first shock-absorbing pad is embedded in the side wall outside the blade body inside the fixing groove, and the first shock-absorbing pad is fixedly connected to the blade holder. The first shock-absorbing pad is used to dampen the side wall outside the blade body.
[0014] Preferably, a pull plate is provided at one end of the pull rod located on the outside of the side frame, and the pull plate is fixedly connected to the pull rod to facilitate the pulling of the pull rod.
[0015] Compared with the prior art, this utility model provides a machine tool cutting tool with buffer protection, which has the following beneficial effects:
[0016] This invention achieves dual optimization through the design of a damping tool holder and the cooperation of a side frame, side groove, wedge block, pull rod, return spring, and base limiting groove: the damping tool holder can buffer cutting vibration, protecting the tool body and reducing damage to the tool body due to vibration, thus solving the problem of traditional tools being easily damaged and having their service life shortened by vibration during cutting; the engagement of the wedge block and the limiting groove, and the disengagement structure controlled by the pull rod, enable quick assembly and disassembly of the base and the damping tool holder. During installation, the base presses against the wedge block, compressing the return spring. After alignment, the spring pushes the wedge block to lock in place. During disassembly, pulling the pull rod separates the tool holder, offering the advantages of convenient operation and no need for complex tools, thus solving the problem of cumbersome and time-consuming assembly and disassembly of traditional tool bases, which affects processing efficiency. Attached Figure Description
[0017] Figure 1This is a three-dimensional view of the overall structure of this utility model;
[0018] Figure 2 This is a three-dimensional view of the disassembled state of this utility model;
[0019] Figure 3 For the present utility model Figure 2 Enlarged view of a portion of region A in the middle.
[0020] In the diagram: 1. Damping tool holder; 2. Base; 3. Tool holder; 4. Fixing groove; 5. First shock absorber; 6. Tool body; 7. Second shock absorber; 8. Limiting groove; 9. Positioning groove; 10. Positioning cone rod; 11. Side frame; 12. Side groove; 13. Wedge block; 14. Return spring; 15. Pull rod; 16. Pull plate. Detailed Implementation
[0021] 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.
[0022] This utility model provides a technical solution: a machine tool cutting tool with buffer protection. Please refer to [link / reference]. Figure 1 , Figure 2 and Figure 3 ,include:
[0023] The damping tool bar 1 and the base 2 are located at one end of the damping tool bar 1. A tool holder 3 is fixed to the end of the base 2 that is away from the damping tool bar 1. A fixing groove 4 is opened inside the tool holder 3, and a tool body 6 is set inside the fixing groove 4.
[0024] The damping bar 1 has side frames 11 fixed on both the upper and lower sides near the base 2. The side frames 11 have side grooves 12 inside. Inside the side grooves 12, wedge blocks 13 and pull rods 15 are installed sequentially from the inside to the outside. The wedge blocks 13 are slidably connected to the side grooves 12, and the pull rods 15 are fixedly connected to the wedge blocks 13. A return spring 14 is installed inside the side grooves 12 outside the pull rods 15.
[0025] A limiting groove 8 is provided on the outside of the base 2 at the position corresponding to the wedge block 13, and the wedge block 13 is adapted to the limiting groove 8.
[0026] Please see Figure 2 A positioning cone rod 10 is fixed to one end of the damping tool rod 1 near the base 2, and the positioning cone rod 10 is fixedly connected to the damping tool rod 1.
[0027] Please see Figure 2 The base 2 has a positioning groove 9 on one side inside, and the positioning groove 9 is integrally formed with the base 2. The positioning groove 9 is adapted to the positioning cone rod 10. The combination of the positioning cone rod 10 and the positioning groove 9 makes the base 2 easy to position.
[0028] Please see Figure 1 and Figure 2 The front and rear sides of the blade body 6 are both equipped with second shock-absorbing pads 7, and the second shock-absorbing pads 7 are fixedly connected to the blade body 6. The second shock-absorbing pads 7 are used to dampen the contact surface between the blade body 6 and the blade holder 3.
[0029] Please see Figure 1 and Figure 2 The first shock-absorbing pad 5 is embedded in the side wall outside the blade body 6 inside the fixing groove 4, and the first shock-absorbing pad 5 is fixedly connected to the blade holder 3. The first shock-absorbing pad 5 is used to dampen the side wall outside the blade body 6.
[0030] Please see Figure 3 A pull plate 16 is provided at one end of the pull rod 15 located on the outside of the side frame 11, and the pull plate 16 is fixedly connected to the pull rod 15 so as to facilitate the pulling of the pull rod 15.
[0031] This solution: When installing the base 2, move the base 2 toward the damping bar 1 and align the positioning groove 9 with the positioning cone bar 10. The outer edge of the base 2 collides and squeezes with the wedge block 13, causing the wedge block 13 to move toward the return spring 14 and the pull rod 15, thereby avoiding the base 2. The return spring 14 is compressed and deformed under force. When the limiting groove 8 moves to the overlapping position of the wedge block 13, the return spring 14 returns and pushes the wedge block 13 to insert it into the limiting groove 8, thereby fixing the base 2 and completing the installation of the base 2. When disassembling, pull the pull rod 15 to make the wedge block 13 disengage from the limiting groove 8 to complete the disassembly of the base 2.
[0032] When installing the blade body 6, the inclined surface of the blade body 6 is combined with the fixing groove 4 of the blade holder 3, and then the fasteners are installed. The second shock-absorbing pad 7 is attached to the fixing groove 4 for shock absorption, and the blade body 6 is attached to the first shock-absorbing pad 5 for shock absorption.
[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A machine tool cutting tool with buffer protection, characterized in that, include: Damping tool bar (1) and base (2), the base (2) is located at one end of the damping tool bar (1), and a tool holder (3) is fixed at one end of the base (2) away from the damping tool bar (1). A fixing groove (4) is provided inside the tool holder (3), and a tool body (6) is provided inside the fixing groove (4). The damping rod (1) has side frames (11) fixed on both the upper and lower sides near the base (2) on the outside. The side frame (11) has a side groove (12) inside. The side groove (12) has a wedge block (13) and a pull rod (15) installed from the inside to the outside. The wedge block (13) is slidably connected to the side groove (12), and the pull rod (15) is fixedly connected to the wedge block (13). A return spring (14) is installed inside the side groove (12) outside the pull rod (15). A limiting groove (8) is provided on the outside of the base (2) at the position corresponding to the wedge block (13), and the wedge block (13) is adapted to the limiting groove (8).
2. A machine tool cutting tool with buffer protection according to claim 1, characterized in that: The damping knife bar (1) has a positioning cone rod (10) fixed at one end near the base (2), and the positioning cone rod (10) is fixedly connected to the damping knife bar (1).
3. A machine tool cutting tool with buffer protection according to claim 2, characterized in that: The base (2) has a positioning groove (9) on one side inside, and the positioning groove (9) is integrally formed with the base (2). The positioning groove (9) is adapted to the positioning cone rod (10).
4. A machine tool cutting tool with buffer protection according to claim 1, characterized in that: The front and rear sides of the blade body (6) are both equipped with second shock-absorbing pads (7), and the second shock-absorbing pads (7) are fixedly connected to the blade body (6).
5. A machine tool cutting tool with buffer protection according to claim 4, characterized in that: The first shock-absorbing pad (5) is embedded in the side wall of the fixed groove (4) located outside the blade body (6), and the first shock-absorbing pad (5) is fixedly connected to the blade holder (3).
6. A machine tool cutting tool with buffer protection according to claim 5, characterized in that: The pull rod (15) is provided with a pull plate (16) at one end outside the side frame (11), and the pull plate (16) is fixedly connected to the pull rod (15).