Metal cutting tool for high-speed cutting

Abstract

The utility model discloses a metal cutting tool for high-speed cutting, which comprises a milling cutter for cutting, a connecting sleeve for guiding, a fixing sleeve for mounting the milling cutter, a conical clamping piece for fixing the milling cutter and a cooling component for cooling the milling cutter, the fastening sleeve is vertically connected to the interior of the connecting sleeve in a threaded mode, the two sets of conical clamping pieces are symmetrically connected to the interior of the connecting sleeve in a sliding mode with the axis of the connecting sleeve as the center, and the bottoms of the two sets of conical clamping pieces penetrate through the connecting sleeve to be connected with a set of cooling assembly; when the milling cutter is disassembled and assembled, the milling cutter can be clamped or loosened through the conical clamping piece only by rotating the fastening sleeve forwards or reversely, and operation is convenient, simple and effective.

Description

Technical Field

[0001] The utility model relates to the technical field of metal cutting tools, in particular to a metal cutting tool for high-speed cutting. Background Art

[0002] Tools with handles usually have three types: rectangular handles, cylindrical handles, and tapered handles. Turning tools, planing tools, etc. generally have rectangular handles; tapered handles rely on the taper to withstand axial thrust and transmit torque through friction; cylindrical handles are generally suitable for smaller twist drills, end mills, etc., and the friction generated during clamping transmits torsional torque during cutting. The handle of many tools with handles is made of low-alloy steel, while the working part is made of high-speed steel by welding the two parts.

[0003] The existing metal cutting tools have the following disadvantages in actual use: the milling cutter will generate high heat due to high-speed rotation and friction during processing. Under the influence of long-term high heat, the tool will deform and be damaged, and the installation method of the tool is complicated, which is not convenient for replacement and maintenance. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the above-mentioned prior art that the milling cutter tool will generate high heat due to high-speed rotation friction during processing, the tool will be deformed and damaged under the influence of long-term high heat, and the installation method of the tool is complicated, which is not convenient for replacement and maintenance.

[0005] A metal cutting tool for high-speed cutting is proposed, comprising a milling cutter for cutting, a connecting sleeve for guiding, a fixing sleeve for installing the milling cutter, a conical clip for fixing the milling cutter and a cooling assembly for cooling the milling cutter, wherein the milling cutter is vertically arranged at the center of the connecting sleeve, the fastening sleeve is vertically threadedly connected to the inside of the connecting sleeve, there are two groups of conical clips which are symmetrically slidably connected to the inside of the connecting sleeve with the axis of the connecting sleeve as the center, and the bottoms of the two groups of conical clips are connected to a group of cooling assemblies through the connecting sleeve.

[0006] In the technical solution of the utility model, when the milling cutter rotates at high speed, the block is thrown toward the direction of the guide rod by centrifugal force. At this time, the coolant in the water storage tank can flow into the water collecting tank through the through holes and the water outlet holes on the box body, and flow into the annular groove of the mounting block through the water collecting tank and the pipeline. After entering the annular groove, the coolant will flow into the flow channel again by its own gravity and continue to flow downward through the flow channel, and then flow out of the flow channel through the water outlet. The coolant will cool the cutter bar of the milling cutter during the flow in the flow channel. After flowing out of the flow channel, the liquid will drip on the tip of the milling cutter, thereby cooling the tip of the milling cutter. When fixing the milling cutter, it is only necessary to insert the milling cutter into the connecting sleeve and then rotate the fastening sleeve. During the rotation, the fastening sleeve will drive the conical clip to clamp the shank of the milling cutter, thereby fixing the milling cutter. This is used to solve the problems mentioned in the technical background that the milling cutter tool will generate high heat due to high-speed rotation friction during processing, and under the influence of long-term high heat, the tool will be deformed and damaged, and the installation method of the tool is complicated, which is not convenient for replacement and maintenance.

[0007] Preferably, a water storage tank is provided inside the connecting sleeve, and a plug is insertably connected to the inside of the water inlet at the top of the water storage tank. Water outlets are provided on both sides of the bottom of the water storage tank, and a sealing assembly is connected to each set of water outlets. After the coolant is input into the water storage tank, the water inlet of the water storage tank can be sealed by the plug to prevent the coolant from being thrown out from the water inlet of the water storage tank when the connecting sleeve rotates.

[0008] Preferably, the sealing assembly includes a box body, a guide rod, a spring and a blocking block. The box body is connected to the inside of the water storage tank. One end of the guide rod is laterally connected to the side plate of the box body, and the other end of the guide rod is laterally slidably connected to the inside of the blocking block. The spring is located at one end of the blocking block and is sleeved on the guide rod. The blocking block is slidably connected to the inside of the box body. When the connecting sleeve rotates, the blocking block will be thrown to both sides of the connecting sleeve. At this time, the coolant can flow into the inside of the water collection tank through the through hole on the box body. When the connecting sleeve stops rotating, the blocking block will be rebounded by the spring to block the through hole on the box body to prevent the coolant from continuing to flow out.

[0009] Preferably, a rubber sheet is bonded to each set of conical clips. When the milling cutter rotates and cuts metal, vibration will be generated. The rubber sheet will absorb the vibration of the milling cutter and the surface of the rubber has friction, which can better clamp the milling cutter and prevent it from falling.

[0010] Preferably, a group of connecting blocks are fixedly connected to the bottom end of each group of conical clips, and the conical clips are connected to the cooling assembly through the connecting blocks. When the conical clips move, the cooling assembly will move together. Therefore, when the conical clips clamp the milling cutter, the cooling assembly will simultaneously wrap the milling cutter, thereby facilitating the cooling assembly to cool the milling cutter.

[0011] Preferably, the cooling assembly includes a fixing plate, a mounting block, an annular groove, a flow channel, a water outlet hole, a water collecting trough, a pipe and a water inlet hole. The fixing plate is vertically arranged at the bottom end of the connecting sleeve, and the top end of the fixing plate is connected to the conical clamp plate by screws. The mounting block is vertically arranged on one side of the milling cutter and the top end of the mounting block is also connected to the fixing plate by screws. An annular groove is annularly opened at the inner top end of the mounting block, and multiple groups of flow channels are evenly vertically opened inside the annular groove. A water outlet hole is opened on the inner wall of the mounting block at the bottom of each group of flow channels. The water collecting trough is perpendicular to the water outlet and bonded to the connecting sleeve. One end of the pipe is connected to the water collecting trough, and the other end of the pipe is inserted into the water inlet hole of the annular groove. The coolant inside the water storage tank will cool the shank of the milling cutter when it flows into the flow channel through the pipe. After flowing out of the flow channel, the coolant will drip on the tip of the milling cutter, thereby cooling the tip of the milling cutter.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model allows the cooling liquid to drip onto the tip of the milling cutter through the cooling component when the milling cutter rotates to cut metal, thereby cooling the tip of the milling cutter, and the cooling liquid will cool the shank of the milling cutter when flowing in the cooling component, thereby preventing the tool from being damaged under the influence of long-term high heat, and when disassembling the milling cutter, it is only necessary to rotate the fastening sleeve forward or reversely to clamp or release the milling cutter through the conical clamping piece, which is convenient and effective to operate, and at the same time, the rubber sheet will absorb the vibration from the milling cutter when the milling cutter is working, thereby preventing the tip of the milling cutter from being damaged when the milling cutter vibrates. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of a metal cutting tool used for high-speed cutting;

[0015] Figure 2 A schematic diagram of the internal structure of a metal cutting tool for high-speed cutting (the connecting sleeve is a whole, and a piece is removed to show the internal structure.);

[0016] Figure 3 for Figure 2 A magnified schematic diagram of point A;

[0017] Figure 4A schematic diagram of the internal structure of a connecting sleeve of a metal cutting tool used for high-speed cutting (the connecting sleeve is a whole, and a piece is removed to show the internal structure.);

[0018] Figure 5 A schematic diagram of the structure of a conical clamping piece and a fastening sleeve of a metal cutting tool for high-speed cutting (the fastening sleeve and the connecting sleeve are a whole, and a piece is removed to show the internal structure.);

[0019] Figure 6 A schematic diagram of the internal structure of a sealing component of a metal cutting tool used for high-speed cutting (the box body is a whole, and a piece is removed to show the internal structure.);

[0020] Figure 7 A schematic diagram of the cooperation between the guide rod and the blocking block structure of a sealing assembly of a metal cutting tool for high-speed cutting (the box body is a whole, and a piece is removed to show the internal structure.);

[0021] Figure 8 A schematic diagram of the cooling assembly of a metal cutting tool for high-speed cutting;

[0022] Fig. 9 It is a schematic diagram of the structure of a mounting block of a metal cutting tool used for high-speed cutting;

[0023] Fig.10 A schematic diagram of the internal structure of a mounting block of a metal cutting tool used for high-speed cutting (the mounting block is a whole, and a piece is removed to show the internal structure.);

[0024] In the figure: 1-milling cutter, 2-connecting sleeve, 21-water storage tank, 22-plug, 23-water outlet, 3-fastening sleeve, 4-conical clip, 41-rubber sheet, 42-connecting block, 5-cooling assembly, 51-fixing plate, 52-mounting block, 53-annular groove, 54-flow channel, 55-water outlet, 56-water collecting tank, 57-pipeline, 58-water inlet, 6-sealing assembly, 61-box, 62-guide rod, 63-spring, 64-block. DETAILED DESCRIPTION

[0025] The following will be combined with the attached embodiment of the present utility model Figure 1-10 , the technical solutions in the embodiments of the utility model are described in detail.

[0026] like Figure 1As shown, a metal cutting tool for high-speed cutting includes a milling cutter 1 for cutting, a connecting sleeve 2 for guiding, a fastening sleeve 3 for installing the milling cutter 1, a conical clip 4 for fixing the milling cutter 1 and a cooling assembly 5 for cooling the milling cutter 1. The interior of the connecting sleeve 2 is hollow and a thread is provided on the inner wall of the connecting sleeve 2. A through hole is provided at the center position of one end of the connecting sleeve 2. The milling cutter 1 is radially arranged inside the connecting sleeve 2 according to the axial direction of the connecting sleeve 2, and the through hole at one end of the connecting sleeve 2 is an interference fit with the milling cutter 1. The other end of the connecting sleeve 2 is also provided with a through hole. The fastening sleeve 3 passes through the through hole at the other end of the connecting sleeve 2 and is radially arranged inside the connecting sleeve 2. The outer surface of the fastening sleeve 3 is also provided with a thread, and the thread on the outer surface of the fastening sleeve 3 is meshed with the thread on the inner wall of the connecting sleeve 2.

[0027] like Figure 1 As shown, when it is necessary to control the movement of the fastening sleeve 3, it is only necessary to rotate the fastening sleeve 3. There are two groups of conical clips 4, both of which are arranged inside the connecting sleeve 2, and the two groups of conical clips 4 are arranged on the inner wall of the connecting sleeve 2 near one end of the milling cutter 1. The two groups of conical clips 4 are symmetrically slidably connected inside the connecting sleeve 2 with the axis of the connecting sleeve 2 as the center. A conical groove is opened inside the fastening sleeve 3 according to the axial direction of the fastening sleeve 3. The top ends of the two groups of conical clips 4 are both arranged inside the fastening sleeve 3, and the bottoms of the two groups of conical clips 4 are connected to a group of cooling components 5 through the connecting sleeve. Therefore, when the conical clips 4 move laterally, the conical clips 4 will synchronously drive the cooling component 5 to move.

[0028] like Figure 2-3 As shown, a water storage tank 21 is opened inside the connecting sleeve 2 along the length direction of the connecting sleeve 2, and a water inlet hole 58 is opened at the top of the water storage tank 21, and the plug 22 is inserted and connected inside the water inlet, and the plug 22 is located on one side of the fastening sleeve 3, so when it is necessary to input coolant into the water storage tank 21, it is only necessary to remove the plug 22, and when the coolant input is completed, it is only necessary to insert the plug 22 into the water inlet again, because when the milling cutter 1 is installed, the connecting sleeve 2 will be vertically installed on the machine together with the milling cutter 1, so when the milling cutter 1 is working, the plug 22 will not fall off from the inside of the water inlet.

[0029] like Figure 2-3As shown, after the plug 22 is inserted and connected to the inside of the water inlet, the coolant in the water tank 21 can be prevented from being thrown out from the water inlet when the milling cutter 1 is working. Water outlet holes 55 are vertically opened on both sides of the bottom of the water tank 21. When the milling cutter 1 is cooled, the coolant will flow from the water outlet 23 into the water collecting tank 56 of the cooling component 5. A group of sealing components 6 are arranged above each group of water outlets 23. When the milling cutter 1 is not working, the sealing components 6 will block the water outlet 23 to prevent the coolant from flowing out from the inside of the water outlet 23. When the milling cutter 1 is working, the sealing components 6 will open the water outlet 23 so that the coolant can flow out from the water outlet 23.

[0030] like Figure 4-5 As shown, a rubber sheet 41 is bonded to the inner wall of each set of conical clips 4. When the milling cutter 1 rotates to cut the material, it will vibrate. The rubber sheet 41 will absorb the vibration generated when the milling cutter 1 cuts the metal and the surface of the rubber has friction. Therefore, under the action of the fastening sleeve 3, the milling cutter 1 can be better clamped to prevent the milling cutter 1 from accidentally falling when cutting the metal. A set of connecting blocks 42 are vertically welded at the bottom end of each set of conical clips 4. Both sets of connecting blocks 42 are connected to the cooling assembly 5 through the connecting sleeve 2. Therefore, under the action of the fastening sleeve 3, when the conical clip 4 moves horizontally, the conical clip 4 will synchronously drive the cooling assembly 5 to move. Therefore, when the conical clip 4 clamps the milling cutter 1, the cooling assembly 5 will also synchronously wrap the milling cutter 1.

[0031] like Figure 4-5 As shown, a conical groove is provided inside the fastening sleeve 3, and the top end of the conical clip 4 is arranged inside the conical groove. Therefore, when the fastening sleeve 3 rotates in the forward direction and moves in the direction of the conical clip 4, the two groups of conical clips 4 will be synchronously moved laterally toward the axial position of the connecting sleeve 2 under the action of the fastening sleeve 3 until the two groups of conical clips 4 clamp the tool shank of the milling cutter 1. When the conical clips 4 clamp the tool shank of the milling cutter, the fastening sleeve 3 will also stop forward movement. At this time, the milling cutter 1 will be clamped and fixed inside the connecting sleeve 2 by the conical clip 4. Similarly, when the milling cutter 1 needs to be replaced, it is only necessary to rotate the fastening sleeve 3 in the reverse direction, and the milling cutter 1 can be taken out from the inside of the connecting sleeve 2.

[0032] like Figure 6-7As shown, the sealing assembly 6 includes a box body 61, a guide rod 62, a spring 63 and a block 64. The box body 61 is transversely arranged inside the water storage tank 21. Through holes are provided on both side panels and the bottom panel of the box body 61. The box body 61 is located on one side of the conical clip 4 and is bonded to the connecting sleeve 2. The interior of the box body 61 is hollow and the guide rod 62 is transversely arranged inside the box body 61. One end of the guide rod 62 is transversely bonded to the side panel of the box body 61, and the other end of the guide rod 62 is transversely slidably connected to the inside of the block 64. The block 64 is slidably connected to the inside of the box body 61, and the block 64 can slide transversely inside the box body 61 after being guided by the guide rod 62. The spring 63 is located at one end of the block 64 and is sleeved on the guide rod 62.

[0033] like Figure 6-7 As shown, when the milling cutter 1 rotates and starts to cut the material, under the action of centrifugal force, the block 64 will slide laterally in the direction of both sides of the connecting sleeve 2, and the block 64 will begin to squeeze the spring 63 when sliding laterally. The spring 63 will deform and begin to accumulate force when being squeezed, and at the same time, when the block 64 slides laterally to squeeze the spring 63, the through holes on the side panels and the bottom plate of the box body 61 will be exposed. At this time, the coolant inside the water storage tank 21 can flow into the inside of the water outlet 23 through the through holes on the side panels and the bottom plate of the box body 61, until it flows into the inside of the water collection tank 56. When the milling cutter 1 stops rotating, the centrifugal force generated by the milling cutter 1 disappears. At this time, the spring 63 will use the force accumulated during deformation to bounce the block 64 back to its original position. After returning to its original position, the block 64 will block the through holes on the side panels and the bottom plate of the box body 61 again to prevent the coolant inside the water storage tank 21 from continuing to flow out.

[0034] like Figure 8-10 As shown, the cooling assembly 5 includes a fixing plate 51, a mounting block 52, an annular groove 53, a flow channel 54, a water outlet 55, a water collecting trough 56, a pipe 57 and a water inlet 58. The fixing plate is vertically arranged at the bottom end of the connecting sleeve 2, and the top end of the fixing plate 51 is connected to the conical clamping plate 4 by screws, and the other end of the fixing plate 51 is also connected to the mounting block 52 by screws. Therefore, when the conical clamping plate 4 moves laterally, the conical clamping plate 4 will synchronously drive the mounting block 52 to move laterally through the fixing plate 51. The mounting block 52 is vertically arranged on one side of the milling cutter 1, and the top end of the mounting block 52 is connected to the fixing plate 51 by screws. An annular groove 53 is annularly opened at the inner top end of the mounting block 52, and the water inlet is laterally arranged on one side of the annular groove 53, and one end of the water inlet is arranged inside the annular groove 53.

[0035] like Figure 8-10As shown, the other end of the water inlet is arranged on the outside of the mounting block 52, and a plurality of groups of flow channels 54 are evenly and vertically opened inside the flow channel 54, and a water outlet 55 is opened at the bottom of each group of flow channels 54 on the inner wall of the mounting block 52, so the coolant flowing into the flow channel 54 will flow out of the flow channel 54 through the water outlet 23 and drip on the tip of the milling cutter 1, and the water collecting tank 56 is perpendicular to the water outlet 23 and bonded to the connecting sleeve 2, so the cold storage liquid flowing out through the water outlet 55 will flow into the inside of the water collecting tank 56, one end of the pipe 57 is connected to the water collecting tank 56, and the other end of the pipe 57 is inserted in the water inlet 58 of the flow channel 54, so the coolant flowing into the water collecting tank 56 will flow into the inside of the water inlet 58 through the pipe 57.

[0036] The movement process of this embodiment is as follows: after the fastening sleeve 3 is reversed and taken out from the inside of the connecting sleeve 2, the milling cutter 1 is inserted into the inside of the connecting sleeve 2 through the through hole on the end face of the connecting sleeve 2 at one end of the conical clip 4, and then the fastening sleeve 3 is rotated forward until the fastening sleeve 3 cannot rotate. After the installation is completed, the rubber sheet 41 can play a shock-absorbing role to improve stability. Then, when the milling cutter 1 rotates to cut metal, the blocking block 64 will be opened, and the coolant can flow out from the water outlet 23, and then flow into the inside of the annular groove 53 of the mounting block 5252 through the pipeline 57, and then after being diverted by the annular groove 53, it will flow into the inside of the flow channel 54 again. When the coolant flows in the flow channel 54 of the mounting block 5252, the tool rod of the milling cutter 1 can be cooled, and the coolant flowing into the flow channel 54 will flow to the tip of the milling cutter 1 through the water outlet 55 to cool the tip of the milling cutter 1.

[0037] The above embodiments are only for illustrating the technical idea of ​​the present utility model, and cannot be used to limit the protection scope of the present utility model. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A metal cutting tool for high-speed cutting, characterized in that: The invention comprises a milling cutter (1) for cutting, a connecting sleeve (2) for guiding, a fastening sleeve (3) for installing the milling cutter (1), a conical clip (4) for fixing the milling cutter (1), and a cooling assembly (5) for cooling the milling cutter (1), wherein the milling cutter (1) is vertically arranged at the center of the connecting sleeve (2), the fastening sleeve (3) is vertically threadedly connected to the inside of the connecting sleeve (2), two groups of conical clips (4) are symmetrically slidably connected to the inside of the connecting sleeve (2) with the axis of the connecting sleeve (2) as the center, and the bottoms of the two groups of conical clips (4) are connected to a group of cooling assemblies (5) through the connecting sleeve.

2. A metal cutting tool for high-speed cutting according to claim 1, characterized in that: A water storage tank (21) is provided inside the connecting sleeve (2), a plug (22) is plug-connected inside a water inlet at the top of the water storage tank (21), water outlets (23) are provided at both sides of the bottom of the water storage tank (21), and each set of water outlets (23) is connected to a sealing assembly (6).

3. A metal cutting tool for high-speed cutting according to claim 2, characterized in that: The sealing assembly (6) comprises a box body (61), a guide rod (62), a spring (63) and a blocking block (64); the box body (61) is connected to the inside of the water storage tank (21); one end of the guide rod (62) is transversely connected to a side plate of the box body (61); the other end of the guide rod (62) is transversely slidably connected to the inside of the blocking block (64); the spring (63) is located at one end of the blocking block (64) and is sleeved on the guide rod (62); and the blocking block (64) is slidably connected to the inside of the box body (61).

4. A metal cutting tool for high-speed cutting according to claim 1, characterized in that: A rubber sheet (41) is bonded onto each group of conical clips (4).

5. A metal cutting tool for high-speed cutting according to claim 4, characterized in that: A group of connection blocks (42) are fixedly connected to the bottom end of each group of conical clips (4), and the conical clips (4) are connected to the cooling assembly (5) via the connection blocks (42).

6. A metal cutting tool for high-speed cutting according to claim 5, characterized in that: The cooling assembly (5) comprises a fixing plate (51), a mounting block (52), an annular groove (53), a flow channel (54), a water outlet (55), a water collecting tank (56), a pipe (57) and a water inlet (58); the fixing plate (51) is vertically arranged at the bottom end of the connecting sleeve (2), and the top end of the fixing plate (51) is connected to the conical clamping plate (4) by means of screws; the mounting block (52) is vertically arranged on one side of the milling cutter (1), and the top end of the mounting block (52) is also connected to the fixing plate (51) by means of screws. The top of the mounting block (52) is provided with an annular groove (53) in an annular shape, and a plurality of flow channels (54) are evenly and vertically provided inside the annular groove (53). The bottom of each flow channel (54) is provided with a water outlet hole (55) on the inner wall of the mounting block (52). The water collecting trough (56) is perpendicular to the water outlet (23) and is bonded to the connecting sleeve (2). One end of the pipe (57) is connected to the water collecting trough (56), and the other end of the pipe (57) is plugged into the water inlet hole (58) of the annular groove (53).

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