Milling chuck body of numerical control machine tool

Abstract

The utility model belongs to the field of milling machines, particularly relates to a milling chuck body of a numerical control machine tool, and aims to solve the problems that when an existing milling cutter is fixed through a chuck, the milling cutter needs to be matched with a clamping groove in the chuck, so that the size or model of the milling cutter is limited, other milling cutters are inconvenient to clamp and fix, the application range of the chuck is small, and the machining cost is high. In order to solve the problems of low practicability and the like in the prior art, the utility model provides the following scheme that the device comprises a cylinder body and a bottom plate, the bottom of the cylinder body is fixedly connected with the top of the bottom plate, the corner angles of the four sides of the cylinder body and the bottom plate are arc-shaped, and the corner angles of the four sides of the inner wall of the cylinder body are arc-shaped. The stability of the milling cutter in the machining process is ensured, the machining precision and safety are improved, meanwhile, the first clamping plate and the second clamping plate can be adjusted, the clamping process is more flexible, and the milling cutter clamping device is suitable for milling cutters of different sizes and shapes.

Description

Technical Field

[0001] This utility model relates to the field of milling machine technology, and in particular to a milling chuck body for CNC machine tools. Background Technology

[0002] Currently, milling chucks are frequently used in CNC machine tools. The milling chuck is installed at the end of the milling machine spindle and is used to clamp the milling cutter. As a transition piece between the milling cutter and the spindle, the spindle mounting base engages with the upper and lower locking blocks of the milling chuck cone to fix the milling chuck. The spindle power is transmitted to the milling cutter through the milling chuck, thereby completing the workpiece machining.

[0003] A search revealed that patent CN221247080U discloses a CNC machine tool milling chuck body.

[0004] However, the above technical solution has the following problems: when the milling cutter is fixed by the collet, the milling cutter needs to be matched with the groove inside the collet, which limits the size or model of the milling cutter and makes it inconvenient to clamp and fix other milling cutters, resulting in a small range of applicability and low practicality of the collet. Utility Model Content

[0005] The purpose of this utility model is to solve the shortcomings of the existing technology, which requires the milling cutter to fit into the groove inside the chuck when it is fixed by the chuck, thus limiting the size or model of the milling cutter and making it inconvenient to clamp and fix other milling cutters, resulting in a small range of applications and low practicality of the chuck. Therefore, a CNC machine tool milling chuck body is proposed.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A CNC machine tool milling chuck body includes a cylinder and a base plate. The bottom of the cylinder is fixedly connected to the top of the base plate. The four corners of the cylinder and the base plate are all arc-shaped. The four corners of the inner wall of the cylinder are all arc-shaped. The bottom inner wall of the cylinder has a placement groove for placing the milling cutter.

[0008] The first fixing mechanism is installed on the cylinder to fix the milling cutter;

[0009] The second fixing mechanism is located at the top of the cylinder and is used to fix the milling cutter.

[0010] In one possible design, the first fixing mechanism includes four U-shaped frames, four No. 1 fixing posts, four No. 1 rotating handles, four No. 1 clamping plates, and four rubber pads. The four No. 1 clamping plates are respectively disposed on the four inner walls of the same cylinder. One end of each of the four U-shaped frames slides through the four sides of the same cylinder and is fixedly connected to one side of the No. 1 clamping plate. One end of each of the four No. 1 fixing posts is threaded through the four U-shaped frames and is rotatably connected to the outside of the cylinder. The other end of each of the four No. 1 fixing posts is fixedly connected to one side of each of the four No. 1 rotating handles. The four rubber pads are respectively fixedly disposed on the side of the four No. 1 clamping plates that are close to each other.

[0011] In one possible design, the second fixing mechanism includes four No. 2 clamping plates, four No. 2 rotating handles, four No. 2 fixing posts, four anti-slip pads, multiple sliding strips, and multiple sliding grooves. The multiple sliding grooves are respectively arranged on the top four sides of the same cylinder. The multiple sliding strips are respectively fixedly arranged on the bottom two sides of the four No. 2 clamping plates. The multiple sliding strips are slidably connected to the four sliding grooves. One end of each of the four No. 2 fixing posts is threaded through the top of the four No. 2 clamping plates and is tightly attached to the top of the cylinder. The bottom of each of the four No. 2 rotating handles is fixedly connected to the other end of each of the four No. 2 fixing posts. The four anti-slip pads are respectively fixedly arranged on the side of the four No. 2 clamping plates that are close to each other.

[0012] In one possible design, two limiting blocks are fixedly connected to the top four sides of the cylinder to prevent the No. 2 clamp from detaching from the cylinder, and connecting blocks that fit with the limiting blocks are fixedly connected to both sides of the four No. 2 clamps.

[0013] In one possible design, the shapes of the multiple slide bars and multiple slide grooves are all set to T-shapes to facilitate the clamping and fixing of the milling cutter by the second clamping plate.

[0014] In one possible design, multiple anti-slip strips are fixedly provided on the sides of the four rubber pads that are close to each other to facilitate clamping and fixing the milling cutter.

[0015] In one possible design, mounting plates are fixedly connected to all four sides of the base plate for easy installation, and the four mounting plates have mounting holes for easy installation.

[0016] In this application, the mounting plate is connected to the fixed components of the CNC machine tool via mounting holes using bolts or other fasteners, thus securely mounting the entire milling chuck body onto the CNC machine tool. During use, the milling cutter is placed in the placement slot at the bottom of the cylinder, ensuring the cutter is approximately centered. By rotating the four No. 1 rotating handles, which are fixedly connected to the No. 1 fixed post and whose threads penetrate the U-shaped frame and are rotatably connected to the outside of the cylinder, rotating the No. 1 rotating handles causes the U-shaped frame (and the No. 1 clamping plate fixedly connected to it) to slide against the cylinder. This allows the four No. 1 clamping plates to gradually move closer to the milling cutter, initially clamping and fixing it using rubber pads (and their anti-slip strips). After this initial clamping, the milling cutter is further... By sliding the four No. 2 clamping plates (whose bottom sliding strips slide in the grooves at the top of the cylinder), adjust the position of the No. 2 clamping plates so that they contact and are in close contact with the outer side of the end mill. Then, rotate the four No. 2 rotating handles. Since the No. 2 rotating handles are fixedly connected to the No. 2 fixed post, and the No. 2 fixed post is threaded through the No. 2 clamping plates and in close contact with the top of the cylinder, rotating the No. 2 rotating handles will cause the bottom end of the No. 2 fixed post to face downwards and be in close contact with the top of the cylinder. The anti-slip pads on the No. 2 clamping plates increase the friction between the clamping plates and the outer side of the end mill, achieving secondary clamping and fixation. During the sliding and adjustment of the No. 2 clamping plates, the design of the limit block and connecting block ensures that the No. 2 clamping plates will not detach from the cylinder. At the same time, the T-shaped sliding strips and grooves enhance the stability and accuracy of the sliding.

[0017] The beneficial effects of this utility model are as follows:

[0018] In this invention, the dual clamping design of the first and second fixing mechanisms ensures the stability of the milling cutter during the machining process, improves machining accuracy and safety, and both the first and second clamping plates can be adjusted, making the clamping process more flexible and suitable for milling cutters of different sizes and shapes. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 3 This is an exploded view of the second fixing structure of this utility model;

[0022] Figure 4 This is an enlarged schematic diagram of part A of the present invention.

[0023] In the diagram: 1. Cylinder body; 2. Base plate; 3. Mounting plate; 4. U-shaped frame; 5. Placement slot; 6. Fixed post No. 1; 7. Rotating handle No. 1; 8. Clamping plate No. 1; 9. Slide groove; 10. Slide bar; 11. Anti-slip strip; 12. Clamping plate No. 2; 13. Fixed post No. 2; 14. Anti-slip pad; 15. Connecting block; 16. Limiting block; 17. Rotating handle No. 2; 18. Rubber pad. Detailed Implementation

[0024] 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.

[0025] Example 1

[0026] Reference Figure 1-Figure 4 A milling chuck body includes a cylinder 1 and a base plate 2, which are connected securely. Specifically, the bottom of the cylinder 1 is fixedly connected to the top of the base plate 2. To enhance safety and smoothness of use, the four corners of the cylinder 1 and the base plate 2, as well as the four corners of the inner wall of the cylinder 1, are designed to be arc-shaped. In addition, a placement groove 5 is provided on the bottom inner wall of the cylinder 1. This groove is designed to facilitate the placement of the milling cutter. To fix the milling cutter, the milling chuck body is designed with a first fixing mechanism and a second fixing mechanism.

[0027] The first fixing mechanism includes four U-shaped frames 4, four No. 1 fixing posts 6, four No. 1 rotating handles 7, four No. 1 clamping plates 8, and four rubber pads 18. The four No. 1 clamping plates 8 are respectively set on the four inner walls of the cylinder 1. Each U-shaped frame 4 has two ends that slide through the side wall of the cylinder 1 and are fixedly connected to one side of the No. 1 clamping plate 8. One end of each of the four No. 1 fixing posts 6 is threaded through the four U-shaped frames 4 and rotatably connected to the outside of the cylinder 1. The other end is fixedly connected to one side of the four No. 1 rotating handles 7. This design allows the position of the No. 1 clamping plate 8 to be adjusted by rotating the No. 1 rotating handle 7, thereby clamping and fixing the milling cutter. In addition, the four rubber pads 18 are fixedly set on the side of the four No. 1 clamping plates 8 that are close to each other to increase the friction during clamping and protect the milling cutter from being scratched. In order to further enhance the stability of clamping, multiple anti-slip strips 11 are also fixedly set on the side of the rubber pads 18 that are close to each other.

[0028] The second fixing mechanism includes four No. 2 clamping plates 12, four No. 2 rotating handles 17, four No. 2 fixing posts 13, four anti-slip pads 14, multiple sliding strips 10, and multiple sliding grooves 9. The sliding grooves 9 are set on the top four sides of the cylinder 1, while the sliding strips 10 are fixedly set on the bottom sides of the four No. 2 clamping plates 12. These sliding strips 10 are slidably connected to the sliding grooves 9, allowing the No. 2 clamping plates 12 to slide and adjust on the top of the cylinder 1. One end of each of the four No. 2 fixing posts 13 is threaded through the top of the four No. 2 clamping plates 12 and is tightly attached to the top of the cylinder 1. The other end is fixedly connected to the bottom of the four No. 2 rotating handles 17. By rotating the No. 2 rotating handles 17, the cylinder can be adjusted. 7. The adjusted No. 2 clamping plate 12 can be fixed to perform secondary clamping and fixing of the milling cutter. Four anti-slip pads 14 are fixedly set on the side of the four No. 2 clamping plates 12 that are close to each other to increase the friction during clamping. In addition, in order to prevent the No. 2 clamping plate 12 from detaching from the cylinder 1 during sliding, two limiting blocks 16 are fixedly connected to the top four sides of the cylinder 1, and connecting blocks 15 that fit with the limiting blocks 16 are fixedly connected to the sides of the four No. 2 clamping plates 12. The shape of the slide bar 10 and the slide groove 9 is designed as T-shaped. This design not only enhances the stability of sliding, but also helps the No. 2 clamping plate 12 to clamp and fix the milling cutter more accurately.

[0029] This application can be used in the field of milling machines, or in other fields applicable to this application.

[0030] Example 2

[0031] refer to Figure 1-Figure 4 Based on Embodiment 1, an improved CNC machine tool milling chuck body includes:

[0032] To facilitate the installation of the milling chuck on a CNC machine tool, mounting plates 3 are fixedly connected to all four sides of the base plate 2, and mounting holes for easy installation are provided on these mounting plates 3.

[0033] 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 milling chuck body for a CNC machine tool, characterized in that, It includes a cylinder (1) and a bottom plate (2). The bottom of the cylinder (1) is fixedly connected to the top of the bottom plate (2). The four corners of the cylinder (1) and the bottom plate (2) are all arc-shaped. The four corners of the inner wall of the cylinder (1) are all arc-shaped. The bottom inner wall of the cylinder (1) is provided with a placement groove (5) to facilitate the placement of the milling cutter. The first fixing mechanism is set on the cylinder (1) for fixing the milling cutter; The second fixing mechanism is set at the top of the cylinder (1) to fix the milling cutter.

2. The CNC machine tool milling chuck body according to claim 1, characterized in that, The first fixing mechanism includes four U-shaped frames (4), four No. 1 fixing posts (6), four No. 1 rotating handles (7), four No. 1 clamps (8), and four rubber pads (18). The four No. 1 clamps (8) are respectively set on the four inner walls of the same cylinder (1). The two ends of one side of the four U-shaped frames (4) slide through the four sides of the same cylinder (1) and are fixedly connected to one side of the No. 1 clamp (8). One end of the four No. 1 fixing posts (6) is threaded through the four U-shaped frames (4) and is rotatably connected to the outside of the cylinder (1). The other end of the four No. 1 fixing posts (6) is fixedly connected to one side of the four No. 1 rotating handles (7). The four rubber pads (18) are respectively fixedly set on the side of the four No. 1 clamps (8) that are close to each other.

3. A CNC machine tool milling chuck body according to claim 1, characterized in that, The second fixing mechanism includes four No. 2 clamping plates (12), four No. 2 rotating handles (17), four No. 2 fixing posts (13), four anti-slip pads (14), multiple sliding strips (10) and multiple sliding grooves (9). The multiple sliding grooves (9) are respectively arranged on the top four sides of the same cylinder (1). The multiple sliding strips (10) are respectively fixedly arranged on the bottom two sides of the four No. 2 clamping plates (12). The multiple sliding strips (10) are respectively slidably connected to the four sliding grooves (9). One end of the four No. 2 fixing posts (13) is threaded through the top of the four No. 2 clamping plates (12) and is tightly attached to the top of the cylinder (1). The bottom of the four No. 2 rotating handles (17) is respectively fixedly connected to the other end of the four No. 2 fixing posts (13). The four anti-slip pads (14) are respectively fixedly arranged on the side of the four No. 2 clamping plates (12) that are close to each other.

4. A CNC machine tool milling chuck body according to claim 1, characterized in that, Two limiting blocks (16) are fixedly connected to the top four sides of the cylinder (1) to prevent the No. 2 clamping plate (12) from detaching from the cylinder (1), and connecting blocks (15) that fit with the limiting blocks (16) are fixedly connected to both sides of the four No. 2 clamping plates (12).

5. A CNC machine tool milling chuck body according to claim 3, characterized in that, The shapes of the multiple slide bars (10) and multiple slide grooves (9) are all set to T-shapes to facilitate the clamping and fixing of the milling cutter by the second clamping plate (12).

6. A CNC machine tool milling chuck body according to claim 2, characterized in that, Multiple anti-slip strips (11) are fixedly provided on the side of each of the four rubber pads (18) that are close to each other, so as to facilitate clamping and fixing the milling cutter.

7. A CNC machine tool milling chuck body according to claim 1, characterized in that, The base plate (2) is fixedly connected to four sides with mounting plates (3) for easy installation, and the four mounting plates (3) are provided with mounting holes for easy installation.

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