Hot charging annular spraying cooling structure

Abstract

The utility model discloses a hot charging annular spraying cooling structure which comprises an annular spraying cutter handle and an annular spraying cutter cap, the annular spraying cutter cap is connected to the inner wall of the annular spraying cutter handle in a threaded mode, a pair of small holes used for circulation of cooling media are formed in the inner wall of the annular spraying cutter handle, and a pressurization flow dividing bin and an injection channel are arranged in the annular spraying cutter handle. The annular spraying cutter cap is provided with a plurality of cooling spraying channels which are arranged in an annular array mode, one end of each cooling spraying channel extends to the surface of one end of the cutter handle, and the other end of each cooling spraying channel is communicated with the pressurizing flow dividing bin; the electromagnetic heating burning cutter is provided with the small holes used for conveying the cooling medium, the small holes are used for conveying the cooling medium, the cutter handle rotates at a high speed, the cooling medium in the pressurization flow dividing bin flows into the cooling spraying channel of the annular spraying cutter cap from the pressurization flow dividing bin to be sputtered out, and the cutter cap does not need to be taken down when the electromagnetic heating burning cutter is used.

Description

TECHNICAL FIELD

[0001] The utility model relates to a hot expansion tool shank related technical field especially relates to a hot mounting ring spray cooling structure. BACKGROUND

[0002] At present in the machine tool processing technical field, on the basis of thermal expansion and cold shrink principle, the interference fit connection between the tool shank and the tool can be carried out through thermal expansion and cold shrink; this kind of tool shank is called thermal shrink tool shank. In some milling machines, drilling machines and processing equipment, if the processing part of the workpiece to be processed is overheated during high-speed processing, for example, there will be waste chips during high-speed processing, if the waste chips are not cleaned away in time and stay in the processing part or are not cooled in time, the waste chips will be heated and fused on the processing part or the tool, thus affecting the normal polishing speed of the tool and accelerating the wear of the tool.

[0003] The utility model discloses a tool adapter structure, tool assembly, processing device and machine tool, patent no. 202121731485.3, the utility model discloses a tool adapter structure, tool assembly, processing device and machine tool, tool adapter structure, including the tool shank adapter part for connecting with the tool shank and the tool clamping part for connecting with the tool, the adapter structure is provided with a plurality of first internal cooling channels that axially pass through, the tool clamping part is provided with the tool clamping hole that axially extends, the tool clamping hole is used to clamp the handle part of the tool, and the inner diameter of the tool clamping hole is used to match the outer diameter of the handle part of the tool.

[0004] The utility model above its first internal cooling channel setting is to be able to transport and ring spray with the medium of cooling, but because the angle that first internal cooling channel sets is fixed so, in the process of ring spray, the sputtering radius formed by the cooling medium is fixed, that is to say, the range of ring spray is invariable, so that more areas cannot be cleaned or cooled. UTILITY MODEL CONTENTS

[0005] The utility model discloses a hot mounting ring spray cooling structure, which overcomes the deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A hot mounting ring spray cooling structure, comprising a ring spray tool shank and a ring spray tool cap, the ring spray tool cap is threadedly connected to the inner wall of the ring spray tool shank, the inner wall of the ring spray tool shank is provided with a pair of small holes for cooling medium flow, the inside of the ring spray tool shank is provided with a pressurizing and shunting bin and an injection channel, the two ends of the small holes are respectively communicated with the injection channel and the pressurizing and shunting bin, the ring spray tool cap is provided with a plurality of cooling spray channels arranged in an annular array, one end of the cooling spray channel extends to the surface of one end of the tool shank, the other end of each cooling spray channel is respectively communicated with the pressurizing and shunting bin.

[0008] Further, the pressurized shunt bin is arranged at one end of the ring jet cutter handle connected with the ring jet cutter cap, and the injection channel is located in the middle of the ring jet cutter handle and arranged coaxially with the ring jet cutter handle.

[0009] Further, the ring jet cutter handle is provided with a water stop structure.

[0010] Further, the water stop structure comprises a water stop flow channel, one end of the small hole is provided with the water stop flow channel communicated with the injection channel, the water stop flow channel is threadedly connected with a locking block, and the locking block is used for on-off of the injection channel and the small hole.

[0011] Further, the outer side wall of the ring jet cutter cap is provided with an external thread, the ring jet cutter handle is provided with an internal thread, and the ring jet cutter cap is threadedly connected to the inside of the ring jet cutter handle through the external thread and the internal thread.

[0012] Further, the middle part of the ring jet cutter cap is provided with a through hole for cutter penetration, and the ring jet cutter cap is coaxially arranged with the ring jet cutter handle.

[0013] Function description of the ring jet cooling hot mounting cutter handle:

[0014] 1. Composed of a ring jet hot mounting cutter handle and a ring jet cutter cap.

[0015] 2. The inner hole in the middle of the ring jet hot mounting cutter handle is clamped to the cutter by using the principle of thermal expansion and cold contraction like the conventional hot mounting cutter handle, then the water outlet hole and the ring jet cutter cap are added in the periphery, and the cooling medium is guided to be sprayed out along the gap between the cutter cap and the cutter handle to cool the cutter and the workpiece.

[0016] 3. Advantages:

[0017] The best system for effectively cooling the milling cutter; direct cooling helps to improve the speed, and iron chips can be safely removed from the cutting area; water or gas can be sprayed in a ring.

[0018] Compared with the prior art, the utility model has the beneficial effects as follows:

[0019] The small hole is used for conveying the cooling medium, and the cooling medium is stored in the pressurized shunt bin of the cutter handle, when machining, the cutter handle rotates at high speed, with the change of the rotating speed, the cooling medium in the pressurized shunt bin can be controlled to splash out from the cooling spraying channel of the ring jet cutter cap, and the ring jet cutter handle with the internal thread can not be taken down when the cutter is heated by using electromagnetic heating, and the original structure is not taken down when machining, and the cutter cap is primarily contacted with the electromagnetic, so that the cutter cap is heated red, and the cutter handle is not heated to the condition of mounting the cutter. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 is a schematic diagram of a three-dimensional structure of the present application.

[0021] Fig. 2 is a half sectional view of the present application.

[0022] BRIEF DESCRIPTION OF DRAWINGS

[0023] 1, small hole; 2, locking block; 3, injection channel; 4, ring spray knife handle; 5, ring spray knife cap; 6, booster shunt warehouse; 7, water flow; 8, cooling injection channel. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purpose, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0025] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. When a number of elements are referred to as "a plurality", it can be any number of two or more. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein only for the purpose of describing specific embodiments and is not intended to limit the present application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] The present application will be described in detail below with reference to the embodiments shown in the accompanying drawings:

[0028] As Figs. 1-2As shown, in the present embodiment, a hot-mounting ring-jet cooling structure is provided, which comprises a ring-jet shank 4 and a ring-jet cap 5, the ring-jet cap 5 being threadedly connected to the inner wall of the ring-jet shank 4, the inner wall of the ring-jet shank 4 being provided with a pair of small holes 1 for the flow of cooling medium, the inside of the ring-jet shank 4 being provided with a pressurized shunt chamber 6 and an injection channel 3, the two ends of the small holes 1 being in communication with the injection channel 3 and the pressurized shunt chamber 6 respectively, the ring-jet cap 5 being provided with a plurality of cooling injection channels 8 arranged in an annular array, one end of each cooling injection channel 8 extending to the surface of one end of the shank, the other end of each cooling injection channel 8 being in communication with the pressurized shunt chamber 6. The pressurized shunt chamber 6 is arranged at the end of the ring-jet shank 4 where the ring-jet cap 5 is connected, the injection channel 3 is located in the middle of the ring-jet shank 4, and the injection channel 3 and the ring-jet shank 4 are coaxially arranged. A water-stopping structure is arranged inside the ring-jet shank 4. The water-stopping structure comprises a water-stopping flow channel 7, one end of the small hole 1 is provided with the water-stopping flow channel 7 which is in communication with the injection channel 3, the water-stopping flow channel 7 is threadedly connected with a locking block 2, and the locking block 2 is used to control the communication between the injection channel 3 and the small hole 1. The outer wall of the ring-jet cap 5 is provided with external threads, the ring-jet shank 4 is provided with internal threads, and the ring-jet cap 5 is threadedly connected to the inside of the ring-jet shank 4 through the external threads and the internal threads. The middle of the ring-jet cap 5 is provided with a through hole for the tool to pass through, and the ring-jet cap 5 and the ring-jet shank 4 are coaxially arranged.

[0029] I. Component manufacturing and structural assembly

[0030] Manufacturing and processing of the ring-jet shank 4

[0031] The ring-jet shank 4 is made of high-strength metal material (such as alloy steel) through casting or precision forging process. A pair of small holes 1 are processed on the inner wall of the ring-jet shank 4, and the diameter of the small holes 1 is set according to the flow requirement of the cooling medium, for example, 3-5 mm.

[0032] A pressurized shunt chamber 6 is processed inside the ring-jet shank 4 near one end (i.e. the end connected with the ring-jet cap 5), and the volume of the pressurized shunt chamber 6 is determined according to the size of the shank and the cooling requirement, and the shape can be hemispherical or ellipsoidal to ensure good flow and pressure distribution of the cooling medium in the chamber.

[0033] An injection channel 3 is processed in the middle of the ring-jet shank 4, and the injection channel 3 is coaxially arranged with the ring-jet shank 4, with an inner diameter of 8-12 mm for connecting the external cooling medium supply source.

[0034] A water-stopping flow channel 7 is processed at one end of the small hole 1 near the injection channel 3, and the diameter of the water-stopping flow channel 7 matches that of the small hole 1, and threads are processed at the outer end of the water-stopping flow channel 7 for connecting the locking block 2.

[0035] Manufacturing and processing of the ring-jet cap 5

[0036] The ring-shaped spray cutter cap 5 is also made of high-strength metal material, and an outer thread is formed on the outer side wall thereof, which is matched with the inner thread of the ring-shaped spray cutter shank 4 to realize tight thread connection.

[0037] A plurality of cooling spray channels 8 arranged in an annular array are formed in the ring-shaped spray cutter cap 5, and the number of the cooling spray channels 8 can be set to 3-6 according to the specific cooling effect requirement. The diameter of each cooling spray channel 8 is 2-4 mm, one end of which extends to the end surface of the cutter shank, and the other end of which is in communication with the pressurized distribution chamber 6.

[0038] A through hole for cutter penetration is formed in the middle of the ring-shaped spray cutter cap 5, and the diameter of the through hole is determined according to the size of the adapted cutter. For example, for a common milling cutter, the diameter of the through hole is 10-30 mm, and the ring-shaped spray cutter cap 5 is arranged coaxially with the ring-shaped spray cutter shank 4.

[0039] Assembly process

[0040] The ring-shaped spray cutter cap 5 is screwed into the inner thread of the ring-shaped spray cutter shank 4 through the outer thread of the outer side wall thereof, so that the ring-shaped spray cutter cap 5 is tightly connected with the ring-shaped spray cutter shank 4. Before assembly, a proper amount of sealing grease can be applied to the thread surface to prevent leakage of the cooling medium.

[0041] According to the need, the locking block 2 is screwed at the thread of the water stop channel 7, and in the initial state, the locking block 2 can be in the closed state, i.e. cutting off the communication between the injection channel 3 and the small hole 1.

[0042] II. Supply and control of cooling medium

[0043] Supply system connection

[0044] The external cooling medium supply source (which can be a cooling liquid pump or a gas compressor) is connected to the injection channel 3 of the ring-shaped spray cutter shank 4 through a pipeline. For cooling liquid supply, the cooling liquid can be a special cutting fluid, and the flow rate thereof can be adjusted between 5-20 L / min according to the machining requirement; for gas supply, it can be compressed air, and the pressure is set between 0.3-0.6 MPa.

[0045] Cooling process during operation

[0046] When the machining starts, the cooling medium supply source is started. If cooling liquid is used, the cooling liquid enters the injection channel 3 and flows into the small hole 1 through the water stop channel 7 (at this time, the locking block 2 is in the open state) under the action of pressure, and then enters the pressurized distribution chamber 6.

[0047] With high speed rotation of the ring jet shank 4 (for example, the rotation speed is between 1000-5000r / min), the cooling medium in the pressurized branch chamber 6 is evenly distributed into each cooling jet 8 due to centrifugal force and pressure change, and then is splashed out of the cooling jet 8 and sprayed along the gap between the shank and the cap to the tool and the workpiece surface for cooling. It is worth mentioning that the inclination of the cooling jet 8 can be controlled according to the actual range of the ring jet, and in the embodiment, the output end of the cooling jet 8 extends to the center part of the ring jet cap 5 and is inclined to the center part in the cross section.

[0048] When the supply of the cooling medium needs to be stopped, the supply source can be closed or the passage can be cut off by screwing the locking block 2 between the injection channel 3 and the small hole 1.

[0049] III. Operation when the electromagnetic heating tool is used

[0050] Utilization of special advantages

[0051] When the electromagnetic heating tool is used, since the ring jet shank 4 is an internal thread structure, the ring jet cap 5 can not be removed. The electromagnetic heating mainly acts on the inner hole part of the ring jet shank 4, so that the inner hole of the shank is heated and expanded to clamp the tool.

[0052] In this process, the ring jet cap 5 does not primarily contact the electromagnetic and is not excessively heated, avoiding damage to the cap due to overheating or affecting the installation precision of the tool, and at the same time, the inner hole of the shank is heated and expanded to normally clamp the tool, ensuring the normal processing.

[0053] The technical features of the above-described embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered that it is within the scope of the present application, and those skilled in the art can make several modifications and improvements without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A hot-chamber ring-lance cooling structure, characterized by: The ring jet cutter handle and the ring jet cutter cap are provided, the ring jet cutter cap is threadedly connected to the inner wall of the ring jet cutter handle, a pair of small holes for cooling medium circulation are arranged on the inner wall of the ring jet cutter handle, a pressurized shunt bin and an injection channel are arranged in the ring jet cutter handle, the two ends of the small holes are respectively communicated with the injection channel and the pressurized shunt bin, the ring jet cutter cap is provided with a plurality of annular array arranged cooling injection channels, one end of the cooling injection channel extends to the surface of one end of the cutter handle, and the other end of the cooling injection channel is communicated with the pressurized shunt bin.

2. A hot-mount ring spray cooling structure as claimed in claim 1, wherein: The pressurized shunt bin is arranged at the end of the ring jet cutter handle connected with the ring jet cutter cap, the injection channel is located in the middle of the ring jet cutter handle, and the injection channel and the ring jet cutter handle are coaxially arranged.

3. A hot-chamber ring-labyrinth cooling structure as claimed in claim 1, characterized in that: A water stop structure is arranged in the ring jet cutter handle.

4. A hot-chamber ring-labyrinth cooling structure as claimed in claim 3, characterized in that: The water stop structure comprises a water stop flow channel, one end of the small hole is provided with the water stop flow channel communicated with the injection channel, the water stop flow channel is threadedly connected with a locking block, and the locking block is used for the on-off of the injection channel and the small hole.

5. A hot-chamber ring-labyrinth cooling structure as defined in claim 1, wherein: The outer side wall of the ring jet cutter cap is provided with an external thread, the ring jet cutter handle is provided with an internal thread, and the ring jet cutter cap is threadedly connected to the inside of the ring jet cutter handle through the external thread and the internal thread.

6. A hot-chamber ring-labyrinth cooling structure according to claim 1 or 5, characterized in that: A through hole for cutter penetration is arranged in the middle of the ring jet cutter cap, and the ring jet cutter cap and the ring jet cutter handle are coaxially arranged.

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