High-speed numerical control cutter handle

Abstract

The utility model belongs to the field of numerical control machine tools, particularly relates to a high-speed numerical control knife handle, and provides the following scheme aiming at the problems that most of the existing knife handles are single in installation of knives, most of the knife handles can only be used for the same size, knife handles of different specifications need to be used according to different sizes of the knives, and the adaptability is low. Comprising a connecting part used for being connected with equipment, a base body is arranged at the bottom of the connecting part, the base body comprises a knife handle base body and an auxiliary plate, a notch is formed in one side of the bottom of the outer wall of the knife handle base body, and the auxiliary plate is matched with the notch; the clamping piece is used for clamping and fixing a cutter, the cutter can be installed through cooperation of the clamping piece and the locking ring, the cutters with different diameter sizes can be clamped by installing the clamping piece at different positions, and therefore the adaptability is improved, and meanwhile through limiting of limiting pieces such as a limiting block, the overall stability of the cutter handle can be improved.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, and in particular to a high-speed CNC tool holder. Background Technology

[0002] A CNC tool holder is a part of the tool clamping system on a machining center or CNC milling machine. Its main function is to connect the tool to the spindle of the machining center to complete the cutting task. Specifically, the CNC tool holder is installed on the spindle and is used to clamp and transmit speed and torque, ensuring that the tool can operate stably and achieve precise and efficient cutting.

[0003] Existing tool holders are mostly limited to a single type of tool, requiring different tool holders for different tool sizes, resulting in low adaptability. Furthermore, the overall stability of existing tool holders needs improvement. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where tool holders are mostly limited to a single type of tool and can only be used for the same size, requiring different specifications of tool holders to be used depending on the size of the tool, resulting in low adaptability. Therefore, this invention proposes a high-speed CNC tool holder.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A high-speed CNC tool holder includes a connecting part for connecting to a device. The bottom of the connecting part is provided with a base. The base includes a tool holder base and a secondary plate. A notch is provided on one side of the bottom of the outer wall of the tool holder base. The secondary plate cooperates with the notch.

[0007] A clamping member is used to clamp and fix the cutting tool, and the clamping member is located between the tool holder base and the secondary plate;

[0008] A locking ring is used to lock the clamping component. The locking ring is threaded onto the outer wall of the tool holder base and the auxiliary plate, and the locking ring is also sleeved on the outer wall of the clamping component.

[0009] A limiting ring is used to limit the displacement of the locking ring. The limiting ring is slidably sleeved on the outer wall of the tool holder base. A compression spring is sleeved on the outer wall of the tool holder base. The two ends of the compression spring are respectively fixedly set at the bottom of the connecting part and the top of the limiting ring.

[0010] In one possible design, the clamping member includes an annular portion and a plurality of clamping portions disposed at the bottom of the annular portion, the plurality of clamping portions being arranged in a ring and inclined, and a gap being provided between the plurality of clamping portions.

[0011] In one possible design, the bottom of the locking ring is shaped like an inverted frustum and engages with multiple clamping parts.

[0012] In one possible design, locking blocks are fixedly provided on both sides of the outer wall of the annular part, and multiple locking slots are provided on the inner wall of the side of the tool holder base and the sub-plate that are close to each other, and the multiple locking slots on the same side cooperate with the locking blocks.

[0013] In one possible design, a second limiting half-ring is fixedly provided on the outer wall of the tool holder base, and a first limiting half-ring is fixedly provided on the outer wall of the sub-plate. Both the first and second limiting half-rings are located between the limiting ring and the locking ring.

[0014] In one possible design, limit blocks are fixedly provided on both sides of the bottom of the limiting ring, and upper limit grooves are opened on the outer walls of the first and second limiting half rings. The two limit blocks are respectively engaged with the two upper limit grooves. Lower limit grooves are opened on both sides of the top of the outer wall of the locking ring, and the two limit blocks are respectively engaged with the two lower limit grooves.

[0015] In one possible design, two fixing slots are provided at the notch, and fixing blocks are fixedly provided at both ends of the sub-plate, with the two fixing blocks respectively cooperating with the two notches.

[0016] In this application, during actual use, the clamping component is placed inside the tool holder base, and the outer wall of the annular portion engages with the groove on the inner wall of the tool holder base. Then, the secondary plate is installed at the notch in the tool holder base, and the fixing block is inserted into the fixing groove, with the outer wall of the annular portion engaging with the groove on the inner wall of the secondary plate. The tool can then be inserted through the clamping component into the tool holder base. Subsequently, the locking ring is screwed onto the outer wall of the tool holder base and the secondary plate, thus connecting and fixing the tool holder base and the secondary plate. When installing the locking ring, the inverted frustum-shaped inner wall at the bottom of the locking ring will press against the outer wall of the clamping portion, thus clamping the tool. When the tool is clamped, the locking ring is tightened to the designated position to hold and fix the tool in place. Then, the limiting block at the bottom of the limiting ring will limit and fix the limiting half ring and the locking ring through the upper and lower limiting grooves respectively, preventing them from rotating and completing the installation. When it is necessary to fix a tool with a smaller diameter, the diameter of the tool after being clamped by multiple clamping parts will also become smaller. At this time, the locking block on the outer wall of the clamping claw needs to be engaged with the locking groove located below, and the entire clamping part is downward, so that the clamping part can clamp the corresponding diameter size. Conversely, the clamping part is moved upward to adapt to the tool with a larger diameter size.

[0017] In this utility model, the high-speed CNC tool holder, through the clamping component and locking ring, can achieve the goal of firmly clamping the tool and preventing the tool from loosening during high-speed machining, while also being adjustable to accommodate tools of different sizes.

[0018] In this utility model, the high-speed CNC tool holder, through the limiting ring and the compression spring, can limit the displacement of the locking ring, provide additional locking force to the locking ring, ensure that the tool will not loosen during the machining process, and has a simple structure that is easy to assemble and maintain.

[0019] In this invention, the tool can be installed by the cooperation of the clamping component and the locking ring. By installing the clamping component in different positions, tools of different diameters can be clamped, thereby increasing adaptability. At the same time, the overall stability of the tool holder can be increased by the limiting components such as the limiting block. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of a high-speed CNC tool holder proposed in this utility model;

[0021] Figure 2 This is an exploded structural diagram of a high-speed CNC tool holder proposed in this utility model;

[0022] Figure 3 This is a cross-sectional structural diagram of a high-speed CNC tool holder proposed in this utility model;

[0023] Figure 4 This utility model Figure 3 Enlarged view of the structure of part A in the middle.

[0024] In the diagram: 1. Connecting part; 2. Tool holder base; 3. Limiting ring; 4. Annular part; 5. Locking ring; 6. Compression spring; 7. Limiting block; 8. Lower limit groove; 9. Sub-plate; 10. First limiting half ring; 11. Locking block; 12. Notch; 13. Fixing groove; 14. Second limiting half ring; 15. Locking groove; 16. Upper limit groove; 17. Clamping part; 18. Fixing block. Detailed Implementation

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Example 1

[0027] Reference Figure 1-2 A high-speed CNC tool holder, used in the field of CNC machine tools, includes: a connecting part 1, a tool holder base 2, a limiting ring 3, an annular part 4, a locking ring 5, a compression spring 6, a limiting block 7, a lower limiting groove 8, a secondary plate 9, a first limiting half ring 10, a locking block 11, a notch 12, a fixing groove 13, a second limiting half ring 14, a locking groove 15, an upper limiting groove 16, a clamping part 17, and a fixing block 18.

[0028] The connecting part 1 is used to connect with the equipment, and a base is provided at its bottom. The base consists of a tool holder base 2 and a secondary plate 9. A notch 12 is opened on one side of the bottom of the outer wall of the tool holder base 2, and the secondary plate 9 cooperates with the notch 12 to form a complete tool holder structure.

[0029] The clamping member is located between the tool holder base 2 and the secondary plate 9, and is used to clamp and fix the tool. The clamping member includes an annular portion 4 and multiple clamping portions 17 disposed at the bottom of the annular portion 4. The multiple clamping portions 17 are arranged in a ring and are all inclined, with gaps between them to accommodate the deformation clamping of the clamping portions 17.

[0030] The locking ring 5 is used to lock the clamping components. The locking ring 5 is threaded onto the outer wall of the tool holder base 2 and the secondary plate 9, and also onto the outer wall of the clamping components. When the locking ring 5 rotates, it gradually compresses the clamping components, causing the clamping parts 17 to tightly grip the tool. The bottom of the locking ring 5 is truncated cone-shaped, matching the shape of the multiple clamping parts 17 to ensure a locking effect.

[0031] To ensure that the locking ring 5 and the limiting ring 3 are in the correct positions, a second limiting half-ring 14 is fixedly installed on the outer wall of the tool holder base 2, and a first limiting half-ring 10 is fixedly installed on the outer wall of the sub-plate 9. Both the first limiting half-ring 10 and the second limiting half-ring 14 are located between the limiting ring 3 and the locking ring 5, providing them with additional support and limiting.

[0032] The limiting ring 3 is used to restrict the displacement of the locking ring 5. The limiting ring 3 is slidably sleeved on the outer wall of the tool holder base 2, and the outer wall of the tool holder base 2 is also sleeved with a compression spring 6. The two ends of the compression spring 6 are respectively fixedly set at the bottom of the connecting part 1 and the top of the limiting ring 3, which are used to stabilize the position of the limiting ring 3 and achieve the reset effect after movement. Limiting blocks 7 are fixedly set on both sides of the bottom of the limiting ring 3. The outer walls of the first limiting half ring 10 and the second limiting half ring 14 are respectively provided with upper limit grooves 16, and the two limiting blocks 7 cooperate with the two upper limit grooves 16 respectively. At the same time, the two sides of the top of the outer wall of the locking ring 5 are respectively provided with lower limit grooves 8, and the two limiting blocks 7 also cooperate with the two lower limit grooves 8 respectively. So that when the locking ring 5 is screwed to the designated position, the limiting blocks 7 at the bottom of the limiting ring 3 can be fixed through the limiting grooves to prevent rotation during use.

[0033] To more securely connect the subplate 9 and the tool holder base 2, two fixing slots 13 are provided at the notch 12. Fixing blocks 18 are fixedly installed at both ends of the subplate 9, and the two fixing blocks 18 respectively cooperate with the two fixing slots 13.

[0034] Example 2

[0035] refer to Figure 3-4An improvement based on Embodiment 1 is made as follows: In order to enable clamping of tools of various sizes, locking blocks 11 are fixedly provided on both sides of the outer wall of the annular part 4. Multiple slots 15 are provided on the inner wall of the side of the tool holder base 2 and the sub-plate 9 that are close to each other, and the locking blocks 11 cooperate with the slots 15.

[0036] Specifically, the clamping member is placed inside the tool holder base 2, and the locking block 11 on the outer wall of the annular portion 4 engages with the slot 15 on the inner wall of the tool holder base 2. Then, the secondary plate 9 is installed at the notch 12 in the tool holder base 2, and the fixing block 18 is inserted into the fixing groove 13, with the locking block 11 on the outer wall of the annular portion 4 engaging with the slot 15 on the inner wall of the secondary plate 9. The tool can then be inserted through the clamping member into the tool holder base 2. Next, the locking ring 5 is screwed onto the outer walls of the tool holder base 2 and the secondary plate 9, thus connecting and fixing the tool holder base 2 and the secondary plate 9. When installing the locking ring 5, the inverted frustum-shaped inner wall at the bottom of the locking ring 5 will press against the outer wall of the clamping portion 17, clamping... Part 17 clamps the tool. When the locking ring 5 is screwed to the designated position, the tool will be clamped and fixed. Then, the limiting block 7 at the bottom of the limiting ring 3 will limit and fix the limiting half ring and the locking ring 5 through the upper limiting groove 16 and the lower limiting groove 8 respectively, so that they cannot rotate, thus completing the installation. When it is necessary to fix a tool with a smaller diameter, the diameter of the tool after being clamped by multiple clamping parts 17 will also become smaller. At this time, the locking block 11 on the outer wall of the clamping claw 4 needs to be engaged with the locking groove 15 located below, and the clamping part is downward, so that the clamping part 17 can clamp the corresponding diameter. Conversely, the clamping part is moved upward to adapt to the tool with a larger diameter.

[0037] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-speed CNC tool holder, characterized in that, include: A connecting part (1) is used to connect with the equipment. The bottom of the connecting part (1) is provided with a base. The base includes a handle base (2) and a sub-plate (9). A notch (12) is opened on one side of the bottom of the outer wall of the handle base (2). The sub-plate (9) cooperates with the notch (12). A clamping member is used to clamp and fix the cutting tool, and the clamping member is located between the tool holder base (2) and the sub-plate (9); Locking ring (5) is used to lock the clamping member. The locking ring (5) is threaded on the outer wall of the tool holder base (2) and the auxiliary plate (9), and the locking ring (5) is also sleeved on the outer wall of the clamping member. A limiting ring (3) is used to limit the displacement of the locking ring (5). The limiting ring (3) is slidably sleeved on the outer wall of the tool holder base (2). A compression spring (6) is sleeved on the outer wall of the tool holder base (2). The two ends of the compression spring (6) are respectively fixedly set at the bottom of the connecting part (1) and the top of the limiting ring (3).

2. The high-speed CNC tool holder according to claim 1, characterized in that, The clamping member includes an annular portion (4) and a plurality of clamping portions (17) disposed at the bottom of the annular portion (4). The plurality of clamping portions (17) are arranged in a ring and are inclined. A gap is provided between the plurality of clamping portions (17).

3. A high-speed CNC tool holder according to claim 2, characterized in that, The bottom of the locking ring (5) is truncated cone-shaped and cooperates with multiple clamping parts (17).

4. A high-speed CNC tool holder according to claim 3, characterized in that, Both sides of the outer wall of the annular part (4) are fixedly provided with locking blocks (11), and the inner wall of the knife handle base (2) and the sub-plate (9) that are close to each other are provided with multiple locking slots (15), and the multiple locking slots (15) located on the same side cooperate with the locking blocks (11).

5. A high-speed CNC tool holder according to claim 1, characterized in that, The outer wall of the handle base (2) is fixedly provided with a second limiting half ring (14), and the outer wall of the sub-plate (9) is fixedly provided with a first limiting half ring (10). The first limiting half ring (10) and the second limiting half ring (14) are both located between the limiting ring (3) and the locking ring (5).

6. A high-speed CNC tool holder according to claim 5, characterized in that, Limiting blocks (7) are fixedly provided on both sides of the bottom of the limiting ring (3). The outer walls of the first limiting half ring (10) and the second limiting half ring (14) are provided with upper limit grooves (16). The two limiting blocks (7) cooperate with the two upper limit grooves (16) respectively. The top of the outer wall of the locking ring (5) is provided with lower limit grooves (8) on both sides. The two limiting blocks (7) cooperate with the two lower limit grooves (8) respectively.

7. A high-speed CNC tool holder according to claim 1, characterized in that, Two fixing slots (13) are provided at the notch (12), and fixing blocks (18) are fixedly provided at both ends of the sub-plate (9). The two fixing blocks (18) respectively cooperate with the two notches (12).

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