Special-shaped hard alloy milling cutter

Abstract

The utility model relates to the technical field of milling cutters, and provides a special-shaped hard alloy milling cutter which comprises a milling cutter handle, a milling cutter rod and a milling cutter head, the milling cutter rod is mounted at the bottom end in the milling cutter handle, the milling cutter head is fixed at the bottom of the milling cutter rod, a liquid injection groove is formed in the middle in the milling cutter rod, and a liquid guide groove is formed in the middle in the milling cutter head. The liquid injection groove is formed in the middle of the interior of the milling cutter rod, and the small bearing is arranged between the liquid injection pipe and the liquid injection groove, so that the situation that the milling cutter rod rotates to drive the liquid injection pipe to twist and be damaged is avoided. Cutting fluid is injected into the liquid injection groove through the liquid injection pipe and then sprayed out from the periphery of the milling cutter head through the liquid guide groove and the liquid separation groove, even if the milling cutter head goes deep into a deep cutting end face, the cutting fluid can be effectively sprayed, the cooling and lubricating effects of the cutting fluid on the cutting end face are ensured, the service life of a cutter is prolonged, the cutting end face can be protected, and the service life of the cutter is prolonged. The processing quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to milling cutter technical field, especially to a special-shaped hard alloy milling cutter. BACKGROUND

[0002] The special-shaped hard alloy milling cutter has the advantages of high hardness, good wear resistance, high strength and toughness, strong heat resistance and corrosion resistance, and can maintain good cutting performance under high-speed cutting and high-temperature environment, greatly improving the service life and processing efficiency of the cutter.

[0003] When the special-shaped hard alloy milling cutter is working, cutting fluid needs to be continuously sprayed to lubricate and cool the cutting end face. The traditional cutting fluid spraying device sprays through the spray pipes arranged on both sides of the bottom of the main shaft. However, when the spray pipes are used to spray the deep cutting end face, if the cutting fluid cannot be injected into the deep cutting end face more fully, the cooling and lubrication of the cutting end face by the cutting fluid will be affected. As a result, the temperature between the cutting end face and the milling cutter will rise rapidly, the cutting end face and the milling cutter will be damaged, and the cutting end face cannot be better lubricated due to the insufficient action of the cutting fluid, which affects the cutting effect. SUMMARY

[0004] The utility model discloses a special-shaped hard alloy milling cutter, which is used for working, thereby solving the above problems.

[0005] In order to solve the above technical problems, the utility model provides the following technical scheme: a special-shaped hard alloy milling cutter, which comprises a milling cutter handle, a milling cutter rod and a milling cutter head. The bottom end of the milling cutter handle is internally provided with the milling cutter rod. The bottom of the milling cutter rod is fixedly provided with the milling cutter head. The middle position of the milling cutter rod is internally provided with a liquid injection groove. The middle position of the milling cutter head is internally provided with a liquid guide groove. The liquid guide groove is in communication with the liquid injection groove. The outer side wall of the milling cutter head is equally and spacedly provided with a liquid distribution groove. The liquid distribution groove is in communication with the inside of the liquid guide groove.

[0006] Preferably, the inner side wall of the milling cutter handle is fixedly provided with a limiting block. The top of the limiting block is fixedly provided with a blocking block. The blocking block is fixed to the inner side wall of the milling cutter handle. The outer side wall of the top of the milling cutter handle is provided with a limiting groove. The position of the limiting groove is opposite to that of the limiting block.

[0007] Preferably, the limiting block and the limiting groove are each provided with four. The limiting block is equally and fixedly provided on the inner side wall of the milling cutter handle. The limiting groove is equally and provided on the outer side wall of the milling cutter rod.

[0008] Compared with the prior art, the utility model has the following beneficial effects:

[0009] 1. The utility model provides a special-shaped hard alloy milling cutter, through the injection tank is established in the middle position inside milling cutter pole, sets up small -size bearing between injection pipe and injection tank, avoids the milling cutter pole rotation and drives the injection pipe twist damage. Make cutting fluid injects the injection tank through the injection pipe, sprays from the milling cutter head outer periphery through the liquid guide groove and the liquid distribution groove again, even if the milling cutter head goes into the deeper cutting end surface, cutting fluid can effectively spray, ensure the cutting end surface cooling and lubricating effect of cutting fluid, not only prolongs the service life of the tool, can also protect the cutting end surface, improves the processing quality.

[0010] 2. The utility model provides a special-shaped hard alloy milling cutter, in the cutting operation, if Z axis falls the distance is big, will make the milling cutter appears the phenomenon of shortening of the tool under the pressure of workpiece and main shaft, because the milling cutter pole top and the bottom of the stop block close contact, the stop block can block the milling cutter further retraction, reduces the influence of milling cutter retraction to processing, guarantees the stability and continuity of processing. DRAWINGS

[0011] Figure 1 It is the whole structure schematic diagram of the utility model;

[0012] Figure 2 It is the local structure section of the utility model Figure One ;

[0013] Figure 3 It is the local structure section of the utility model Figure Two ;

[0014] Figure 4 It is the milling cutter main part structure schematic diagram of the utility model.

[0015] The reference numerals in the drawing are explained: 1, milling cutter handle;11, limit block;12, stop block;13, limit slot;2, milling cutter pole;21, injection tank;22, liquid guide groove;23, liquid distribution groove;3, milling cutter head. CONCRETE IMPLEMENTING METHOD

[0016] The technical scheme in the embodiment of the utility model will be clearly and completely described in combination with the drawings in the embodiment of the utility model, and obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of the utility model protection.

[0017] In order to further understand the contents of the utility model, the utility model is described in detail in combination with the drawings.

[0018] In combination with Figures 1 to 4The utility model discloses a special-shaped hard alloy milling cutter, including milling cutter handle 1, milling cutter stem 2 and milling cutter head 3, the bottom of inside milling cutter handle 1 is installed with milling cutter stem 2, the bottom of milling cutter stem 2 is fixed with milling cutter head 3, the middle position of inside milling cutter stem 2 is seted up with injection tank 21, the middle position of inside milling cutter head 3 is seted up with liquid guide groove 22, and liquid guide groove 22 is linked with injection tank 21, and the outside wall of milling cutter head 3 is seted up with liquid distribution groove 23 at equal intervals, and liquid distribution groove 23 is linked with the inside of liquid guide groove 22.

[0019] The inside wall of milling cutter handle 1 is fixed with limiting block 11, the top of limiting block 11 is fixed with stopper 12, and stopper 12 is fixed on the inside wall of milling cutter handle 1, and the outside wall of the top of milling cutter handle 1 is seted up with limiting groove 13, and limiting groove 13 is opposite to limiting block 11.

[0020] Limiting block 11 and limiting groove 13 are each provided with four, limiting block 11 is fixed on the inside wall of milling cutter handle 1 at equal intervals, and limiting groove 13 is seted up on the outside wall of milling cutter stem 2 at equal intervals.

[0021] Specifically, milling cutter stem 2 and milling cutter head 3 form a milling cutter, when the milling cutter is installed in milling cutter handle 1, the limiting groove 13 seted up on the outside wall of milling cutter stem 2 is aligned with the limiting block 11 fixed on the inside wall of milling cutter handle 1, the milling cutter stem 2 is pushed to make the limiting groove 13 slide outside the limiting block 11, the milling cutter stem 2 is pushed to be placed in the milling cutter handle 1, the top end of the milling cutter stem 2 is tightly pressed against the stopper 12, and then fixed, so that the installation of the milling cutter is completed.

[0022] The injection tank 21 is seted up in the middle position of the inside of milling cutter stem 2, the injection pipe is installed at the top of the injection tank 21, and a small bearing is arranged between the injection pipe and the injection tank 21 to ensure the connection between the injection pipe and the injection tank 21, prevent the injection pipe from rotating with the milling cutter stem 2 when rotating, and prevent the injection pipe from being twisted and disconnected or damaged.

[0023] The cutting fluid is injected into the injection tank 21 through the injection pipe, and then introduced into the liquid guide groove 22, and the cutting fluid is sprayed out of the outer periphery of the milling cutter head 3 through the liquid distribution groove 23, so that the cutting fluid can still be sprayed between the milling cutter head 3 when it is inserted into the deep cutting end face, ensuring the effect of the cutting fluid, and preventing the cutting fluid from being unable to be fully injected into the deep cutting end face, affecting the cooling and lubrication of the cutting fluid on the cutting end face.

[0024] When the milling cutter is used for cutting for a long time, if the distance of Z-axis descending is large, the milling cutter cannot repeatedly cut the end face, which will cause the milling cutter to be shortened due to the pressure of the workpiece and the main shaft, and the milling cutter stem 2 will be retracted into the milling cutter handle 1.

[0025] When the above problems occur, since the top end of the milling cutter bar 2 is in close contact with the bottom of the stopper 12, the milling cutter is prevented from retracting to a certain extent by the blocking of the stopper 12, and the problem of affecting processing occurs.

[0026] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0027] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A shaped cemented carbide milling tool comprising a milling tool shank (1), a milling tool stem (2) and a milling tool head (3), characterized in that: The bottom end of the milling cutter handle (1) is internally provided with a milling cutter rod (2), the bottom of the milling cutter rod (2) is fixedly provided with a milling cutter head (3), the middle position of the inside of the milling cutter rod (2) is provided with a liquid injection groove (21), the middle position of the inside of the milling cutter head (3) is provided with a liquid guide groove (22), the liquid guide groove (22) is communicated with the liquid injection groove (21), and the outer side wall of the milling cutter head (3) is provided with equally spaced liquid distribution grooves (23), which are communicated with the inside of the liquid guide groove (22).

2. A hard metal milling cutter of the type defined in claim 1, characterised in that: The inner side wall of the milling cutter handle (1) is fixedly provided with a limiting block (11), the top of the limiting block (11) is fixedly provided with a stop block (12), the stop block (12) is fixedly provided on the inner side wall of the milling cutter handle (1), the outer side wall of the top of the milling cutter handle (1) is provided with a limiting groove (13), and the limiting groove (13) is opposite to the position of the limiting block (11).

3. A shaped cemented carbide milling cutter according to claim 2, characterized in that: The limiting block (11) and the limiting groove (13) are each provided with four, the limiting block (11) is fixedly provided on the inner side wall of the milling cutter handle (1) at equal intervals, and the limiting groove (13) is provided on the outer side wall of the milling cutter rod (2) at equal intervals.

Images