Multi-edge synchronous feed precision milling cutter

Abstract

The utility model discloses a kind of multi-blade synchronous feeding precision milling cutter, including milling cutter handle and the milling cutter body of fixed connection in the one end of milling cutter handle, the surface of milling cutter body is provided with multiple chip flutes, multiple chip flutes are uniformly provided with milling cutter peripheral edge at the junction with milling cutter body, the side of milling cutter handle surface is provided with multiple expansion components, the other side of milling cutter handle surface is provided with thread layer, the surface of thread layer is threadedly connected with locking assembly, the side of locking assembly is rotatably connected with filling component, the middle of milling cutter handle surface is provided with multiple sliding slot components, a kind of multi-blade synchronous feeding precision milling cutter of the utility model, the device is provided with annular groove and expansion ring inside annular groove, milling cutter can generate a lot of heat when in use, although there is oil cooling, but still have higher temperature, expansion ring installed in groove is heated and expanded, can extrude milling cutter with the gap inside equipment connecting end, make the installation of milling cutter more firm.

Description

Technical Field

[0001] This utility model relates to the technical field of multi-blade end mills, specifically a multi-blade synchronous feed precision end mill. Background Technology

[0002] Multi-flute synchronous feed precision end mills can participate in cutting with multiple cutting edges simultaneously, completing more cutting work in a single feed, significantly shortening machining time and improving production efficiency. Existing multi-flute synchronous feed precision end mills typically employ special cutting edge designs and chip flute structures to ensure smooth chip removal, reduce cutting edge wear, and extend tool life while maintaining multi-flute cutting capabilities. However, the aforementioned common type of multi-flute synchronous feed precision end mill still has shortcomings:

[0003] Some multi-blade synchronous feed milling cutters use cylindrical shanks. When installed on the equipment connection end, due to the high strength of the use or problems with the equipment connection end, the milling cutter is prone to loosening during use, which seriously affects the machining accuracy and quality. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-blade synchronous feed precision milling cutter to solve the problem mentioned in the background art that some multi-blade milling cutters use cylindrical tool holders, which can easily cause the milling cutter to loosen during use due to high strength or other issues with the equipment connection end, seriously affecting the accuracy and quality of machining.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-blade synchronous feed precision milling cutter, comprising a milling cutter shank and a milling cutter body fixedly connected to one end of the milling cutter shank. The surface of the milling cutter body is provided with multiple chip removal grooves, and the connection points between the multiple chip removal grooves and the milling cutter body are provided with milling cutter peripheral cutting edges. One side of the surface of the milling cutter shank is provided with multiple expansion components, and the other side of the surface of the milling cutter shank is provided with a threaded layer. The surface of the threaded layer is threadedly connected with a locking component, and one side of the locking component is rotatably connected with a filling component. The middle part of the surface of the milling cutter shank is provided with multiple sliding groove components.

[0006] Preferably, the expansion assembly includes a tool holder ring groove, which is formed on the end mill shank. An expansion ring is provided inside the tool holder ring groove, and the surface of the expansion ring is flush with the surface of the end mill shank. This facilitates the improvement of the stability of the end mill installation through the expansion ring made of expansion material.

[0007] Preferably, the locking assembly includes a threaded locking sleeve, which is threadedly connected to the threaded layer. A connecting ring groove is provided on one side of the threaded locking sleeve, which is beneficial for driving the filler strip.

[0008] Preferably, the filling component includes a tool holder collar, which is slidably connected to the end mill shank. Multiple filling strips are fixedly connected to the inner wall of the tool holder collar, and a connecting ring is fixedly connected to one side of the tool holder collar. The connecting ring is rotatably connected to the connecting ring groove, which greatly improves the installation stability of the end mill, reduces slippage and loosening, and ensures the quality of machining.

[0009] Preferably, the chute assembly includes a filling chute, which is formed on the milling cutter shank, and an enlarged inclined plate is fixedly connected inside the filling chute.

[0010] Preferably, a limit ring is fixedly connected to one end of the threaded layer at the connection between it and the milling cutter shank.

[0011] Compared with the prior art, the beneficial effects of this utility model are: it is provided with an annular groove and an expansion ring inside the annular groove. When the milling cutter is used, it will generate a lot of heat. Although there is oil cooling, it still has a high temperature. The expansion ring installed in the groove expands when heated, which can squeeze the gap between the milling cutter and the equipment connection end, making the installation and fixation of the milling cutter more secure.

[0012] Rotating the threaded locking sleeve moves the tool holder collar, causing the filler strip to move towards the position of the enlarged inclined plate. The enlarged inclined plate spreads the filler strip apart, at which point the filler strip will abut against the inner wall of the equipment connection end and the enlarged inclined plate, greatly improving the installation stability of the milling cutter, reducing slippage and loosening, and ensuring the quality of machining. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the multi-blade synchronous feed precision milling cutter of this utility model;

[0014] Figure 2 This is a structural diagram of the multi-blade synchronous feed precision milling cutter of this utility model, with the locking and filling mechanism concealed.

[0015] Figure 3 This is a structural diagram of the locking assembly for the multi-blade synchronous feed precision milling cutter of this utility model;

[0016] Figure 4 This is a structural diagram of the filling assembly of the multi-blade synchronous feed precision milling cutter of this utility model.

[0017] In the diagram: 1. Milling cutter shank; 2. Milling cutter body; 3. Chip removal groove; 4. Milling cutter peripheral cutting edge; 5. Shank annular groove; 6. Expansion ring; 7. Thread layer; 8. Limiting ring; 9. Threaded locking sleeve; 10. Connecting ring groove; 11. Shank collar; 12. Connecting ring; 13. Filler strip; 14. Filler groove; 15. Enlarged slant plate. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] Please see Figure 1-4 This utility model provides a multi-blade synchronous feed precision milling cutter, including a milling cutter shank 1 and a milling cutter body 2 fixedly connected to one end of the milling cutter shank 1. The surface of the milling cutter body 2 is provided with multiple chip removal grooves 3, and the connection between the multiple chip removal grooves 3 and the milling cutter body 2 is provided with a milling cutter peripheral cutting edge 4. One side of the surface of the milling cutter shank 1 is provided with multiple expansion components, and the other side of the surface of the milling cutter shank 1 is provided with a threaded layer 7. The surface of the threaded layer 7 is threadedly connected with a locking component, and one side of the locking component is rotatably connected with a filling component. The middle part of the surface of the milling cutter shank 1 is provided with multiple sliding groove components.

[0020] See Figure 1 and Figure 2 Furthermore, the expansion assembly includes a tool holder ring groove 5, which is formed on the milling cutter holder 1. An expansion ring 6 is provided inside the tool holder ring groove 5, and the surface of the expansion ring 6 is flush with the surface of the milling cutter holder 1.

[0021] In use, the number of tool holder ring grooves 5 and expansion rings 6 are reasonably set on the surface of the milling cutter holder 1. The number can be reasonably arranged according to the specifications of the milling cutter and the intensity of use. After the expansion rings 6 are installed inside the tool holder ring grooves 5, the outer diameter surfaces of the two are flush, which prevents the connector of the equipment from not being able to clamp the surface of the milling cutter holder 1. The expansion rings 6 are made of stainless steel and can effectively fill part of the gap between the milling cutter holder 1 and the connection end of the equipment.

[0022] See Figure 1 , Figure 3 and Figure 4 Furthermore, the locking assembly includes a threaded locking sleeve 9, which is threadedly connected to the threaded layer 7. A connecting ring groove 10 is provided on one side of the threaded locking sleeve 9. The filling assembly includes a tool holder collar 11, which is slidably connected to the milling cutter holder 1. Multiple filling strips 13 are fixedly connected to the inner wall of the tool holder collar 11. A connecting ring 12 is fixedly connected to one side of the tool holder collar 11. The connecting ring 12 is rotatably connected to the connecting ring groove 10. The chute assembly includes a filling chute 14, which is opened on the milling cutter holder 1. An enlarged inclined plate 15 is fixedly connected inside the filling chute 14. A limit ring 8 is fixedly connected to one end of the connection between the threaded layer 7 and the milling cutter holder 1.

[0023] In use, rotating the threaded locking sleeve 9 moves the tool holder collar 11 toward the filling groove 14. The tool holder collar 11 moves with the threaded locking sleeve 9, and then multiple filler bars 13 move inside the filling groove 14. The filler bars 13 are made of stainless steel and have high hardness. The enlarged inclined plate 15 has a slight angle relative to the inner bottom wall of the filling groove 14. When the filler bars 13 move toward the enlarged inclined plate 15, the filler bars 13 are spread apart by the enlarged inclined plate 15, thus tightly locking them between the enlarged inclined plate 15 and the equipment connector, greatly improving the stability of the milling cutter installation.

[0024] In this embodiment, the milling cutter body 2 has a multi-edged, synchronously fed precision milling cutter. The chip removal groove 3 provides a channel for chips to be discharged from the cutting area, preventing chips from accumulating between the cutting edge and the workpiece. The multiple cutting edges of the multi-edged, synchronously fed precision milling cutter rotate with the cutter body, and their displacement, speed, and rhythm along the feed direction are perfectly matched. The cutting depth, cutting speed, and other parameters of all cutting edges remain uniform, ensuring that the cutting load borne by each cutting edge is uniform. The equipment connection end is the position for installing the milling cutter. The milling cutter shank 1 is inserted into the equipment connection end, and the end with the threaded layer 7 needs to be left outside. At this time, rotating the threaded locking sleeve 9 causes the filler strip 13 to be opened, improving the stability of the installation. Rotating the threaded locking sleeve 9 can be achieved by using an external wrench or other tools. A structure corresponding to the wrench is provided on the outside of the threaded locking sleeve 9. It should be noted that this utility model is a multi-edged, synchronously fed precision milling cutter. All components are general standard parts or components known to those skilled in the art. Its structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-blade synchronous feed precision milling cutter, comprising a milling cutter shank (1) and a milling cutter body (2) fixedly connected to one end of the milling cutter shank (1), characterized in that: The surface of the milling cutter body (2) is provided with multiple chip removal grooves (3), and the connection between the multiple chip removal grooves (3) and the milling cutter body (2) is provided with a milling cutter peripheral cutting edge (4). One side of the surface of the milling cutter shank (1) is provided with multiple expansion components, and the other side of the surface of the milling cutter shank (1) is provided with a threaded layer (7). The surface of the threaded layer (7) is threadedly connected with a locking component, and one side of the locking component is rotatably connected with a filling component. The middle part of the surface of the milling cutter shank (1) is provided with multiple sliding groove components.

2. The multi-blade synchronous feed precision milling cutter according to claim 1, characterized in that: The expansion assembly includes a tool holder ring groove (5), which is formed on the milling cutter holder (1). An expansion ring (6) is provided inside the tool holder ring groove (5), and the surface of the expansion ring (6) is flush with the surface of the milling cutter holder (1).

3. The multi-blade synchronous feed precision milling cutter according to claim 1, characterized in that: The locking assembly includes a threaded locking sleeve (9), which is threadedly connected to the threaded layer (7), and a connecting ring groove (10) is provided on one side of the threaded locking sleeve (9).

4. A multi-blade synchronous feed precision milling cutter according to claim 3, characterized in that: The filling assembly includes a tool holder collar (11), which is slidably connected to the milling cutter holder (1). Multiple filling strips (13) are fixedly connected to the inner wall of the tool holder collar (11). A connecting ring (12) is fixedly connected to one side of the tool holder collar (11), and the connecting ring (12) is rotatably connected to the connecting ring groove (10).

5. A multi-blade synchronous feed precision milling cutter according to claim 1, characterized in that: The chute assembly includes a filling chute (14), which is formed on the milling cutter holder (1), and an enlarged inclined plate (15) is fixedly connected inside the filling chute (14).

6. A multi-blade synchronous feed precision milling cutter according to claim 1, characterized in that: A limit ring (8) is fixedly connected to one end of the threaded layer (7) at the connection with the milling cutter shank (1).

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