Fast adjustable face milling cutter disc

Abstract

The fast adjustable face milling cutter disc comprises a basic cutter disc, the top of one side of the basic cutter disc is fixedly connected with a connecting supporting plate, the surface of the connecting supporting plate is movably connected with a fixing bolt in a penetrating mode, the inner side of the connecting supporting plate is movably connected with a standard cutter handle in a clamped mode, and the fixing bolt and the standard cutter handle are connected in an inserted-type clamped mode; at the present stage, people have known that the geometric accuracy of a cutting tool is one of the main factors influencing the milling face machining accuracy during later-stage work, however, according to a milling cutter adjusting method adopted in the current actual production activity, each cutting edge is adjusted independently, the number of cutting edges of a face milling cutter disc needs to be adjusted for many times, and the machining efficiency is high. The adjusting method is complex in operation and high in requirement for the technical level of adjusting personnel, the whole cutter ring is adjusted through several adjusting screws in the design, all the cutting edges are adjusted to the needed precision only through one-time adjustment, the structure is simple and reliable, operation is easy and convenient, and the adjusting efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the field of numerically controlled cutting tools, and more specifically to a quick-adjustable face milling cutter head. Background Art

[0002] Numerical control milling machines are one of the most widely used numerically controlled machine tools. It is mainly used for the cutting processing of the inner and outer cylindrical surfaces of shaft parts or disc parts, the inner and outer conical surfaces with any cone angle, complex revolving inner and outer curved surfaces, and cylindrical and conical threads, etc., and can perform grooving, drilling, reaming, boring and other operations. Among them, according to the diversification of numerical control milling machine processing, during the cutting and grooving process of workpieces, the face milling cutter head is an essential part of the processing;

[0003] During the mechanical processing process, as the part design becomes more and more complex and the part accuracy becomes higher and higher, the requirements for cutting tools and numerical control equipment are also getting higher and higher. In numerical control equipment processing, face processing is the most widely used processing requirement. There are more and more various positioning surfaces, bearing surfaces, limiting surfaces, supporting surfaces, etc., and the requirements for the shape accuracy and position accuracy of the surface are also getting higher and higher. At the same time, the control of processing costs is getting stricter and the processing efficiency requirements are getting higher and higher. High-efficiency and low-cost machining of high-quality part surfaces are also being taken more and more seriously. To achieve an ideal processing effect is not a simple problem. It involves equipment, tools, systems, detection... and so on. Among them, the tool is one of the more important influencing factors. Without a suitable tool, the accuracy requirements cannot be met, or stability cannot be maintained. Especially when the spindle runout accuracy of numerical control equipment and the repeated positioning accuracy of each moving axis become poor, it has a great impact on the milling surface quality. In actual production, to achieve a higher quality, it is necessary to use new equipment or add other processes to ensure accuracy and stability. For production enterprises, this will not only increase the input costs but also affect production efficiency. If the face milling tool can be adjusted within a certain range, the equipment can reduce the number of repeated positioning, thereby effectively ensuring the machining accuracy and efficiency requirements of parts in the case of poor repeated positioning accuracy of the equipment.

[0004] Therefore, aiming at the problem of insufficient machining accuracy in mechanical face milling, a face milling tool with adjustable accuracy that is simple and reliable in structure, easy to implement, easy to produce, and easy to use is designed to improve the face milling accuracy of parts. Summary of the Invention

[0005] The main technical problem to be solved by the present invention is to provide a quick-adjustable face milling cutter head, which can solve the problem of insufficient machining accuracy in mechanical face milling.

[0006] To solve the above technical problems, according to one aspect of the present invention, more specifically, a quick-adjustable face milling cutter head is provided, which includes a basic cutter head. On the top of one side of the basic cutter head, a connecting support plate is fixedly connected. The surface of the connecting support plate is movably penetrated and connected with a fixing bolt. The inner side of the connecting support plate is movably engaged and connected with a standard tool shank, and the fixing bolt and the standard tool shank are in an inserted and engaged connection.

[0007] Furthermore, an adjustment base ring is movably engaged and connected inside the basic cutter head, and a radial adjustment screw is inserted and engaged with the outer wall on the circumferential side of the adjustment base ring.

[0008] Furthermore, four groups of radial adjustment screws are arranged along the circumferential side of the adjustment base ring, and an adjustment inner ring is movably engaged and connected inside the adjustment base ring.

[0009] Furthermore, the adjustment inner ring and the radial adjustment screw are also in an inserted and engaged connection, and an adjustment ring locking screw is circumferentially penetrated and connected to the outer wall at the bottom of the adjustment base ring.

[0010] Furthermore, four groups of adjustment ring locking screws are provided. While the adjustment ring locking screws penetrate the adjustment base ring, they also form an inserted and engaged connection with the basic cutter head.

[0011] Furthermore, an axial adjustment screw is also inserted and engaged with the outer wall at the bottom of the adjustment base ring. The axial adjustment screws are also circumferentially distributed and four groups are provided.

[0012] Furthermore, a quick-change milling cutter head is attached to the outer wall at the bottom edge of the adjustment base ring, and a cutter head locking screw penetrates the outer wall at the bottom of the quick-change milling cutter head.

[0013] Furthermore, six groups of cutter head locking screws are provided. While the cutter head locking screws penetrate the quick-change milling cutter head, they also form an inserted and engaged connection with the adjustment base ring.

[0014] Furthermore, cutting blades are fixedly connected to the outer wall on the circumferential side of the quick-change milling cutter head, and twelve groups of cutting blades are provided.

[0015] Furthermore, an upper cover is also attached to the bottom surface of the adjustment base ring, and a pressing screw penetrates the bottom surface of the upper cover. The pressing screw and the adjustment base ring are in an inserted and engaged connection.

[0016] The beneficial effects of the quick-adjustable face milling cutter head of the present invention are as follows:

[0017] At present, people have realized that the geometric accuracy of cutting tools themselves is one of the main factors affecting the machining accuracy of milling surfaces. However, in current actual production activities, the milling cutter adjustment methods adopted are to adjust each cutting edge individually. For a face milling cutter head with a certain number of cutting edges, the adjustment needs to be carried out as many times as there are cutting edges. This adjustment method is complex in operation and requires a high technical level of the adjuster. In this design, the overall cutter ring is adjusted through several adjusting screws, and all cutting edges can be adjusted to the required accuracy with only one adjustment. It is not only simple and reliable in structure, but also easy to operate, greatly improving the adjustment efficiency. In use, the maintenance cost of this design is almost zero, and it is more suitable for large-scale applications;

[0018] It is completed by grinding all the cutting edges of the cutting part at one time, ensuring the consistency of the cutting edges, optimizing the cutting edge accuracy. At the same time, the accuracy of the cutting part is adjusted as a whole through the adjustment mechanism, simplifying the adjustment method. At the same time, the cutting part is replaced through the quick-change device, realizing the quick replacement of the cutting edges and improving the working efficiency. Brief Description of the Drawings

[0019] The present invention will be further described in detail below in conjunction with the drawings and specific implementation methods.

[0020] Figure 1 It is the overall exploded view of the quick-adjustable face milling cutter head of the present invention;

[0021] Figure 2 It is the overall structural schematic diagram of the quick-adjustable face milling cutter head of the present invention;

[0022] Figure 3 It is the structural schematic diagram of the quick-change milling cutter head display of the quick-adjustable face milling cutter head of the present invention;

[0023] Figure 4 It is the front structural schematic diagram of the quick-change milling cutter head of the quick-adjustable face milling cutter head of the present invention;

[0024] Figure 5 It is the structural schematic diagram of the connection of the adjusting ring locking screw of the quick-adjustable face milling cutter head of the present invention;

[0025] Figure 6 It is the structural schematic diagram of the connection of the radial adjusting screw of the quick-adjustable face milling cutter head of the present invention;

[0026] Figure 7 It is the structural schematic diagram of the connection of the axial adjusting screw of the quick-adjustable face milling cutter head of the present invention.

[0027] In the figure: 1. Base cutter head; 2. Quick-change milling cutter head; 3. Cutting blade; 4. Cutter head locking screw; 5. Adjusting ring locking screw; 6. Adjusting base ring; 7. Radial adjusting screw; 8. Axial adjusting screw; 9. Upper cover; 10. Compression screw; 11. Adjusting inner ring; 12. Connecting support plate; 13. Fixed bolt; 14. Standard tool shank. Detailed implementation manners

[0028] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0029] According to one aspect of the present invention, a quick-adjustable face milling cutter head is provided, which includes a base cutter head 1. A connecting support plate 12 is fixedly connected to the top of one side of the base cutter head 1. A fixing bolt 13 is movably penetrated through the surface of the connecting support plate 12. A standard tool holder 14 is movably engaged inside the connecting support plate 12. The fixing bolt 13 and the standard tool holder 14 are in an inserted and engaged connection; at the same time, further, an integrally ground quick-change milling cutter head 2 with precise geometric dimensions and the connected cutting blades 3 are installed on an adjustment base ring 6 through an axial and radial two-way adjustment mechanism. At the same time, eight adjustment screws, four axial adjustment screws 8 and four radial adjustment screws 7 drive the adjustment ring to move, so that the cutting edges of the respective cutting blades 3 on the quick-change milling cutter head 2 are at the same turning radius with the rotation center of the machine tool spindle and in the same plane parallel to the cutting plane.

[0030] In this embodiment, an adjustment base ring 6 is movably engaged inside the base cutter head 1. A radial adjustment screw 7 is inserted and engaged with the outer wall on the circumferential side of the adjustment base ring 6; wherein, the base cutter head 1 is fixed on the standard tool holder 14 through the connecting support plate 12 and the fixing bolt 13, and at the same time, the standard tool holder 14 is installed on the machine tool by means of a pull stud, etc., and the standard tool holder 14 can be replaced according to different equipment.

[0031] In this embodiment, four groups of radial adjustment screws 7 are arranged along the circumferential side of the adjustment base ring 6. An adjustment inner ring 11 is movably engaged inside the adjustment base ring 6; wherein, the adjustment inner ring 11 can be limited by the adjustment base ring 6.

[0032] In this embodiment, the adjustment inner ring 11 and the radial adjustment screw 7 are also in an inserted and engaged connection. An adjustment ring locking screw 5 is circumferentially penetrated through the outer wall at the bottom of the adjustment base ring 6; wherein, the adjustment inner ring 11 can be limited and fixed by the radial adjustment screw 7 penetrating through the adjustment base ring 6 and the adjustment inner ring 11.

[0033] In this embodiment, four groups of adjustment ring locking screws 5 are provided. When the adjustment ring locking screws 5 penetrate through the adjustment base ring 6, they also form an inserted and engaged connection with the base cutter head 1; wherein, the adjustment base ring 6 is locked on the base cutter head 1 through the adjustment ring locking screws 5.

[0034] In this embodiment, an axially adjusting screw 8 is also inserted and snap-connected to the bottom outer wall of the adjusting base ring 6. The axially adjusting screws 8 are also distributed in a surrounding manner and four groups are provided at the same time. Among them, the radially adjusting screw 7 and the axially adjusting screw 8 are abutted against the basic cutter head 1 through the threaded holes on the adjusting base ring 6.

[0035] In this embodiment, a quick-change milling cutter head 2 is attached to the bottom edge outer wall of the adjusting base ring 6. A cutter head locking screw 4 penetrates through the bottom outer wall of the quick-change milling cutter head 2. Among them, the quick-change milling cutter head 2 is provided with a reserved hole for the cutter head locking screw 4 to be inserted.

[0036] In this embodiment, six groups of cutter head locking screws 4 are provided. While the cutter head locking screws 4 penetrate through the quick-change milling cutter head 2, they also form an inserted snap connection with the adjusting base ring 6. Among them, the quick-change milling cutter head 2 is installed on the adjusting base ring 6 through the cutter head locking screws 4.

[0037] In this embodiment, cutting blades 3 are fixedly connected to the circumferential outer wall of the quick-change milling cutter head 2. Twelve groups of cutting blades 3 are provided. Among them, the cutting blades 3 are connected to the quick-change milling cutter head 2 by welding.

[0038] In this embodiment, an upper cover 9 is also attached to the bottom surface of the adjusting base ring 6. A pressing screw 10 penetrates through the bottom surface of the upper cover 9. The pressing screw 10 and the adjusting base ring 6 form an inserted snap connection. Among them, the upper cover 9 is connected and installed on the adjusting base ring 6 through the pressing screw 10 to play a role in dust protection.

[0039] The working principle of this device is as follows: This mechanism precisely adjusts the position of the cutting edge of the tool through the radial adjustment screw 7 and the axial adjustment screw 8. For the radial precision adjustment, the quick-change milling cutter disk 2 is connected to the adjustment base ring 6 by the adjusting ring locking screw 5. Initially, the adjustment screw does not contact the base cutter disk 1. The radial adjustment screws 7 are installed in four directions on the adjustment base ring 6. During adjustment, a dial indicator is required to measure the cutting edge of the tool. Rotate the tool to make it rotate around the spindle. The dial indicator measures the runout of each cutting edge of the tool relative to the center of rotation and the offset direction. By tightening the radial adjustment screw 7 inward to make it abut against the base cutter disk 1, the adjustment base ring 6 and the quick-change milling cutter disk 2 and the upper cover 9 connected thereto are driven to move together, and each cutting edge is brought back to the same rotational radius to complete the radial precision adjustment. For the axial precision adjustment, the axial adjustment screws 8 are installed in four directions on the adjustment base ring 6. During adjustment, a dial indicator is required to measure the axial direction of the cutting edge of the tool. Rotate the tool to make it rotate around the spindle. The dial indicator measures the relative height of each cutting edge of the tool relative to the cutting plane. Adjust the relative position of the quick-change milling cutter disk 2 according to the indication of the dial indicator, so as to drive each cutting edge thereon to be in the same plane and parallel to the cutting plane to complete the radial precision adjustment. After the adjustment, each cutting edge of the tool is on the same rotational radius of the spindle and in the same plane parallel to the cutting plane, achieving an ideal cutting state during cutting. When the quick-change milling cutter disk 2 is worn, the cutter disk locking screw 4 can be loosened to remove it and replace it with a new cutter disk. Since the radial and axial precisions have been adjusted, there is no need to adjust again after replacement. This is the working principle of this device.

[0040] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions, or substitutions made by those of ordinary skill in the art within the scope of the essence of the present invention also belong to the protection scope of the present invention.

Claims

1. A quick-adjustable face milling cutter head, comprising a base cutter head (1), Characterized in that: One side top of the base cutter head (1) is fixedly connected with a connecting support plate (12), the surface of the connecting support plate (12) is movably penetrated and connected with a fixing bolt (13), the inner side of the connecting support plate (12) is movably clamped and connected with a standard tool shank (14), and the fixing bolt (13) and the standard tool shank (14) are in an inserted clamping connection.

2. The quick-adjustable face milling cutter head according to claim 1, Characterized in that: An adjustment base ring (6) is movably clamped inside the base cutter head (1), and a radial adjustment screw (7) is inserted and clamped on the outer wall of the circumferential side of the adjustment base ring (6).

3. The quick-adjustable face milling cutter head according to claim 2, Characterized in that: Four groups of the radial adjustment screws (7) are arranged along the circumferential side of the adjustment base ring (6), and an adjustment inner ring (11) is movably clamped inside the adjustment base ring (6).

4. The quick-adjustable face milling cutter head according to claim 3, Characterized in that: The adjustment inner ring (11) and the radial adjustment screw (7) are also in an inserted clamping connection, and an adjustment ring locking screw (5) is circumferentially penetrated through the outer wall of the bottom of the adjustment base ring (6).

5. The quick-adjustable face milling cutter head according to claim 4, Characterized in that: Four groups of the adjustment ring locking screws (5) are provided, and while the adjustment ring locking screws (5) penetrate through the adjustment base ring (6), they also form an inserted clamping connection with the base cutter head (1).

6. The quick-adjustable face milling cutter head according to claim 5, Characterized in that: An axial adjustment screw (8) is also inserted and clamped on the outer wall of the bottom of the adjustment base ring (6), and the axial adjustment screws (8) are also distributed in a circumferential manner and four groups are provided at the same time.

7. The quick-adjustable face milling cutter head according to claim 5, Characterized in that: A quick-change milling cutter head (2) is attached to the outer wall of the bottom edge of the adjustment base ring (6), and a cutter head locking screw (4) penetrates through the outer wall of the bottom of the quick-change milling cutter head (2).

8. The quick-adjustable face milling cutter head according to claim 7, Characterized in that: Six groups of the cutter head locking screws (4) are provided, and while the cutter head locking screws (4) penetrate through the quick-change milling cutter head (2), they also form an inserted clamping connection with the adjustment base ring (6).

9. The quick-adjustable face milling cutter head according to claim 8, Characterized in that: Cutting blades (3) are fixedly connected to the outer wall of the circumferential side of the quick-change milling cutter head (2), and twelve groups of the cutting blades (3) are provided.

10. The quick-adjustable face milling cutter head according to claim 8, Characterized in that: An upper cover (9) is also attached to the bottom surface of the adjustment base ring (6), a pressing screw (10) penetrates through the bottom surface of the upper cover (9), and the pressing screw (10) and the adjustment base ring (6) are in an inserted clamping connection.

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