Composite end mill with good cooling effect

Abstract

The utility model belongs to the technical field of milling cutters, particularly relates to a combined type end milling cutter with a good cooling effect, and aims to solve the problems that the cooling effect is poor, the stability and the precision of a cutting process cannot be ensured, and the influence of cutting temperature and height on the quality of a workpiece cannot be ensured in the prior art. One end of the milling cutter handle is connected with a milling cutter head, the front end of the milling cutter head is provided with a cooling mechanism for cooling the milling cutter, and the rear end of the milling cutter head is provided with a cutting mechanism for cutting a workpiece; the cooling mechanism comprises a connecting piece, the connecting piece is fixed at the front end of the milling cutter head, and a heat conduction pipe is fixed in the connecting piece. The heat-conducting fins absorb heat of heat exchange liquid, when the milling cutter handle rotates at a high speed, the cooling fins can be synchronously driven to rotate, the heat of the heat-conducting fins is transmitted to the surfaces of the cooling fins for air ventilation and heat dissipation, then the active cooling effect is achieved, and practicability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a composite end mill, concretely relates to a composite end mill with good cooling effect and belongs to the technical field of end mills. BACKGROUND

[0002] The composite end mill refers to the end mill with two or more kinds of cutting edge shapes or cutting characteristics combined together to form the end mill with multiple cutting functions.

[0003] In the prior art, the end mill with a composite coating disclosed in the announcement No. CN209272591U includes a protector, a fixator, a waste slot, a wedge block, a threaded joint, a blade, a material guide groove, a joint, a screw, a connecting piece, a mounting port and a rubber ring.

[0004] Although the threaded through holes are arranged on the contact surfaces of the protector and the blade in the above technical scheme to ensure the firmness of the connecting rod during use and prevent the connecting rod from breaking and causing danger, the cooling effect is poor during use, the stability and precision of the cutting process cannot be ensured, the influence of the cutting temperature on the workpiece quality cannot be ensured, and therefore the composite end mill with good cooling effect is provided to overcome the above defects. SUMMARY

[0005] The utility model provides a composite end mill with good cooling effect to solve the problem of poor cooling effect, the stability and precision of the cutting process cannot be ensured, and the influence of the cutting temperature on the workpiece quality cannot be ensured.

[0006] The utility model realizes the above-mentioned purpose through the following technical scheme: a composite end mill with good cooling effect, including end mill handle, the one end of end mill handle is connected with end mill head, the front end of end mill head is equipped with cooling mechanism for cooling end mill, the rear end of end mill head is equipped with cutting mechanism for cutting workpiece,

[0007] The cooling mechanism comprises a connecting piece fixed at the front end of the milling cutter head, a heat conduction pipe fixed inside the connecting piece, a liquid storage cavity opened in the inside of the milling cutter handle and connected with the end of the heat conduction pipe, and three heat dissipation fins fixed on the inner wall of the milling cutter handle and on the outer surface of the heat conduction fins.

[0008] As a further scheme of the utility model: the upper surface of the connecting piece is provided with a limiting hole, and a limiting bolt in threaded connection with the milling cutter handle is inserted and connected in the limiting hole.

[0009] As a further scheme of the utility model: the cutting mechanism comprises two main cutting knives, and the two main cutting knives are installed at the rear end of the milling cutter head.

[0010] As a further scheme of the utility model: the inside of the two main cutting knives is provided with a fixing screw in threaded connection with the milling cutter head.

[0011] As a further scheme of the utility model: the outer surface of the milling cutter head is provided with two chip removal grooves matched with the main cutting knives.

[0012] As a further scheme of the utility model: the outer wall of the milling cutter head is inserted and connected with two auxiliary cutting knives.

[0013] As a further scheme of the utility model: the limiting screw is threaded on one side of the milling cutter head and penetrates the inside of the auxiliary cutting knife.

[0014] The utility model has the advantages that the heat dissipation fins absorb the heat of the heat exchange liquid, when the milling cutter handle rotates at high speed, the heat dissipation fins are driven to rotate synchronously, the heat of the heat dissipation fins is transferred to the surface of the heat dissipation fins and air, and the active cooling effect is realized, and the practicability is improved.

[0015] The limiting bolt and the limiting hole on the connecting piece are separated by unscrewing the limiting bolt on the milling cutter handle, and the fixing of the connecting piece is released, so that the milling cutter head and the milling cutter handle can be disassembled and maintained. DRAWINGS

[0016] Figure 1 It is a schematic view of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic view of the three-dimensional structure of the milling cutter head of the utility model;

[0018] Figure 3 It is a sectional structure schematic view of the milling cutter handle of the utility model;

[0019] Figure 4 It is a schematic view of the three-dimensional structure of the utility model Figure 1 It is an enlarged view of A in the utility model.

[0020] Fig. 1, the milling cutter handle; 2, milling cutter head; 3, connecting piece; 31, heat pipe; 32, liquid storage cavity; 33, heat conduction sheet; 34, heat dissipation fin; 4, limiting hole; 5, limiting bolt; 6, main cutting tool; 61, fixing screw; 62, chip removal groove; 7, auxiliary cutting tool; 8, limiting screw. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model. Embodiment one

[0022] As Figures 1 to 4 shown, a combined end mill with good cooling effect, including milling cutter handle 1, one end of milling cutter handle 1 is connected with milling cutter head 2, the front end of milling cutter head 2 is equipped with cooling mechanism for cooling milling cutter, the rear end of milling cutter head 2 is equipped with cutting mechanism for cutting workpiece;

[0023] Cooling mechanism includes connecting piece 3, connecting piece 3 is fixed at the front end of milling cutter head 2, heat pipe 31 is fixed in the inside of connecting piece 3, the distal end of heat pipe 31 is connected with liquid storage cavity 32 opened in the inside of milling cutter handle 1, heat conduction sheet 33 is fixed on the inner wall of milling cutter handle 1, three heat dissipation fins 34 are fixed on the outer surface of heat conduction sheet 33, limiting hole 4 is opened on the upper surface of connecting piece 3, limiting bolt 5 is inserted and connected in the inside of limiting hole 4 and is screwed with milling cutter handle 1, the heat pipe 31 arranged can absorb the heat generated when milling cutter head 2 cuts tools, and the heat is transferred to the heat exchange liquid in liquid storage cavity 32, heat conduction sheet 33 absorbs the heat of heat exchange liquid, when milling cutter handle 1 rotates at high speed, heat conduction sheet 33 can transfer heat to the surface of heat dissipation fin 34 and air ventilation and heat dissipation, thereby realizing the function of active cooling, improving practicability. Embodiment two

[0024] The embodiment includes all the technical features in embodiment one, and further includes: the cutting mechanism includes main cutting knives 6, two main cutting knives 6 are installed at the rear end of the milling cutter head 2, a fixing screw 61 is installed inside each of the two main cutting knives 6 and is screwed with the milling cutter head 2, two chip grooves 62 matched with the main cutting knives 6 are formed on the outer surface of the milling cutter head 2, two auxiliary cutting knives 7 are insertedly connected to the outer wall of the milling cutter head 2, a limiting screw 8 is screwed at one side of the milling cutter head 2 and penetrates the inside of the auxiliary cutting knife 7, the milling cutter handle 1 is rotated by the driving device, and then the milling cutter head 2 is rotated to process the workpiece, the main cutting knives 6 arranged on the milling cutter head 2 can cut the workpiece, the chip grooves 62 can discharge the cutting debris, the auxiliary cutting knives 7 can assist in cutting the workpiece, and the practicability of the milling cutter is improved; when the main cutting knives 6 are damaged, the fixing screw 61 can be unscrewed, the main cutting knives 6 can be disassembled and replaced, the limiting screw 8 can be unscrewed, the auxiliary cutting knives 7 can be disassembled and replaced, and the milling cutter is convenient to use.

[0025] Working principle: before using the composite end mill with good cooling effect, the milling cutter and the output shaft of the driving device are connected and fixed, the milling cutter handle 1 and the output shaft of the driving device are fixed, the milling cutter handle 1 is rotated by the driving device, and then the milling cutter head 2 is rotated to process the workpiece, the main cutting knives 6 arranged on the milling cutter head 2 can cut the workpiece, the chip grooves 62 can discharge the cutting debris, the auxiliary cutting knives 7 can assist in cutting the workpiece, and the practicability of the milling cutter is improved; when the main cutting knives 6 are damaged, the fixing screw 61 can be unscrewed, the main cutting knives 6 can be disassembled and replaced, the limiting screw 8 can be unscrewed, the auxiliary cutting knives 7 can be disassembled and replaced, and the milling cutter is convenient to use, the heat pipe 31 can absorb the heat generated when the milling cutter head 2 cuts the tool, the heat is transferred to the heat exchange liquid in the liquid storage cavity 32, the heat of the heat-conducting sheet 33 is absorbed by the heat-conducting sheet 33, when the milling cutter handle 1 rotates at high speed, the heat-conducting sheet 33 is transferred to the surface of the heat-conducting sheet 34 and the air collision heat dissipation, and then the active cooling effect is realized, the practicability is improved, the limiting bolt 5 on the milling cutter handle 1 is unscrewed, the limiting bolt 5 and the limiting hole 4 on the connecting piece 3 are separated, and then the fixing of the connecting piece 3 is released, so that the milling cutter head 2 and the milling cutter handle 1 can be disassembled and maintained conveniently.

[0026] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0027] Furthermore, it should be understood that although the present specification describes exemplary embodiments, not every embodiment contains only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that a person skilled in the art can understand.

Claims

1. A composite end mill with good cooling effect, comprising a milling cutter handle (1), characterized in that: One end of the milling cutter shank (1) is connected to a milling cutter head (2), the front end of the milling cutter head (2) is provided with a cooling mechanism for cooling the milling cutter, and the rear end of the milling cutter head (2) is provided with a cutting mechanism for cutting a workpiece; The cooling mechanism comprises a connecting member (3), the connecting member (3) being fixed to the front end of the milling cutter head (2), a heat conducting pipe (31) being fixed inside the connecting member (3), the end of the heat conducting pipe (31) being connected to a liquid storage chamber (32) opened inside the milling cutter shank (1), a heat conducting plate (33) being fixed to the inner wall of the milling cutter shank (1), and three heat sinks (34) being fixed to the outer surface of the heat conducting plate (33).

2. The compound end mill with good cooling effect according to claim 1, characterized in that: A limiting hole (4) is provided on the upper surface of the connecting member (3), and a limiting bolt (5) threadedly connected to the milling cutter shank (1) is plugged into the interior of the limiting hole (4).

3. The compound end mill with good cooling effect according to claim 1, characterized in that: The cutting mechanism comprises a main cutting knife (6), two main cutting knives (6) are provided, and both main cutting knives (6) are mounted on the rear end of the milling cutter head (2).

4. The compound end mill with good cooling effect according to claim 3, characterized in that: A fixing screw (61) threadedly connected to the milling cutter head (2) is installed inside the two main cutting tools (6).

5. The compound end mill with good cooling effect according to claim 4, characterized in that: The outer surface of the milling cutter head (2) is provided with two chip removal grooves (62) that match the main cutting tool (6).

6. The compound end mill with good cooling effect according to claim 1, characterized in that: Two auxiliary cutting knives (7) are plug-connected to the outer wall of the milling cutter head (2).

7. The compound end mill with good cooling effect according to claim 6, characterized in that: A limiting screw (8) that passes through the interior of the auxiliary cutting tool (7) is threadedly mounted on one side of the milling cutter head (2).

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