Cooling device for deep hole machining tool

Abstract

The utility model discloses a cooling device for a deep hole machining cutter in the technical field of deep hole machining cutters, which comprises a rod body of the cutter, a mounting cavity used for filling cooling liquid is fixedly connected on the outer side of the rod body and close to the middle upper part, one side of the mounting cavity is fixedly connected with a leading-in pipe used for leading in the cooling liquid, and the other side of the mounting cavity is fixedly connected with a cooling pipe. A fixing cap is in threaded connection with the top of the guide-in pipe, a cooling piece used for absorbing heat and cooling is installed on the inner side of the rod body, the guide-in pipe can inject cooling liquid into the installation cavity, the cooling liquid in the installation cavity can flow into the rod body for heat absorption and cooling, and the rod body is cooled through the cooling piece; and meanwhile, the cooling piece can absorb heat to cool the cooling liquid, so that the rod body is cooled in the fast rotating trepanning operation process, heat accumulation caused by long-time working of the end of the rod body is avoided, and the end of the rod body can be effectively prevented from being damaged or the performance of the cutter is effectively prevented from being reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to deep hole machining cutter field, specifically for a kind of cooling device for deep hole machining cutter. BACKGROUND

[0002] Deep hole machining numerical control cutter is a kind of cutting tool specially used for machining deep hole, it carries out cutting on material by numerical control system control cutter, to reach accurate machining requirement, deep hole machining cutter is usually composed of cutter bar, tool head and blade, its shape and tool angle will be designed according to different processing needs, currently in the use process of deep hole machining numerical control cutter, its surface needs to be sprayed cooling liquid to cool down, but for some cutters for deep hole machining, cooling water cannot effectively enter deep hole to cool cutter.

[0003] Currently, the cutter is usually sprayed with cooling liquid for cooling and temperature reduction, and the temperature at the end of the cutter is usually high. This cooling method has a slow rate, or the cooling liquid is poured into the rod body to flow for heat absorption and heat dissipation. Although this method can absorb the heat of the rod body, the heat dissipation method is relatively single, the heat absorbed by the cooling liquid cannot be discharged, resulting in a long waiting time for cooling of the rod body, affecting the performance of the cutter cutting opening and the rigidity of the cutter. Therefore, a cooling device for deep hole machining cutter needs to be designed to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of cooling device for deep hole machining cutter to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of cooling device for deep hole machining cutter, including the rod body of cutter, the rod body outer side and close to middle upper part are fixedly connected with the installation cavity for filling cooling liquid, the installation cavity one side is fixedly connected with the import pipe for importing cooling liquid, the import pipe top is screwed with fixed cap, the rod body inner side is installed with the cooling piece for heat absorption and temperature reduction.

[0006] Preferably, the cooling piece includes two cooling cavities opened in the inner side of the rod body, two heat-conducting hoses are placed in the inner side of the installation cavity and the cooling cavity, the cooling cavity is communicated with the installation cavity, the one end of the heat-conducting hose is provided with a plurality of heat dissipation holes arranged in a circle, the two heat-conducting hoses are placed in a staggered manner, and the cooling cavity is filled with cooling liquid.

[0007] Preferably, two fixing rings are extended outside the installation cavity, a fixed part is extended outside the heat-conducting hose and close to the end, an installation ring is screwed outside the heat-conducting hose, and the installation ring is screwed with the fixing ring.

[0008] Preferably, a plurality of heat-conducting rings are fixedly connected to the outside of the heat-conducting hose and close to the end portion, and a heat-dissipating plate is fixedly connected between two heat-conducting rings.

[0009] Preferably, a plurality of ventilation holes are arranged uniformly on the outside of the heat-conducting ring and the outside of the heat-dissipating plate.

[0010] Preferably, a plurality of flow guide holes are arranged circumferentially on the bottom of the cooling cavity.

[0011] Preferably, a plurality of heat-conducting grooves are arranged uniformly on the inner side wall of the cooling cavity.

[0012] Compared with the prior art, the present application has the following beneficial effects:

[0013] 1. The installation cavity is annular, the inlet pipe can inject cooling liquid into the installation cavity, the cooling liquid in the installation cavity can flow into the interior of the rod body to absorb heat and reduce temperature, the cooling member can cool the rod body and absorb heat from the cooling liquid, so that the rod body can be cooled and heat-dissipated during the fast rotating and drilling operation, heat accumulation at the end portion of the rod body is avoided, and the rod body end portion can be effectively prevented from being damaged or the performance of the cutter can be reduced.

[0014] 2. The cooling cavity is U-shaped, the two cooling cavities are arranged in a cross shape, the heat-conducting hose is a copper alloy hose, the heat-conducting hose is deformed after passing through the installation cavity and entering the cooling cavity, the opening at the end portion of the cooling cavity is attached to the bottom of the installation cavity, so that the cooling liquid in the installation cavity can enter the cooling cavity, the cooling liquid in the cooling cavity can absorb heat from the rod body and the end portion of the rod body, the heat-conducting hose can absorb heat from the cooling liquid and conduct heat to the outside, so that the cooling rate of the cooling liquid is increased, and the cooling rate of the rod body is prevented from being reduced due to heat accumulation of the cooling liquid. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic view of the overall structure of the present application;

[0016] Figure 2 It is a left view of the overall structure of the present application;

[0017] Figure 3 It is a schematic view of the overall structure of the present application; Figure 2 It is an enlarged view of A in the present application;

[0018] Figure 4 It is an enlarged view of B in the present application; Figure 2 It is an enlarged view of B in the present application;

[0019] Figure 5 It is a schematic view of the structure of the heat-conducting hose in the overall structure of the present application;

[0020] Figure 6The utility model discloses a sectional view solidified schematic diagram of the whole structure of the rod body, the installation cavity and the cooling cavity.

[0021] In the drawing: 1, rod body; 2, installation cavity; 3, import pipe; 4, fixed cap; 5, cooling cavity; 6, heat conduction hose; 7, radiating hole; 8, fixed ring; 9, installation ring; 10, heat conduction ring; 11, radiating plate; 12, ventilation hole; 13, flow guide hole; 14, heat conduction groove; 601, fixed part. DETAILED DESCRIPTION

[0022] 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, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] Embodiment one

[0024] Please refer to Figures 1-6 The utility model provides a kind of cooling device for deep hole machining tool, including the rod body 1 of tool, the installation cavity 2 for filling cooling liquid is fixedly connected with being filled with cooling liquid on the outer side of rod body 1 and near middle upper part, the import pipe 3 for importing cooling liquid is fixedly connected with on one side of installation cavity 2, fixed cap 4 is screwed on the top of import pipe 3, cooling piece for heat absorption cooling is installed in the inner side of rod body 1.

[0025] Need supplement, installation cavity 2 is annular, import pipe 3 can inject cooling liquid in installation cavity 2, cooling liquid in installation cavity 2 can flow into the inside of rod body 1 and carry out heat absorption cooling, cooling piece is cooled to rod body 1, while cooling piece can heat absorption cooling to cooling liquid, make rod body 1 carry out heat dissipation cooling in the process of fast rotation of opening operation, avoid the heat accumulation caused by rod body 1 end long time work, can effectively prevent rod body 1 end damage or reduce the performance of tool.

[0026] Specifically, cooling piece includes two cooling cavities 5 opened in the inner side of rod body 1, two heat conduction hoses 6 are placed in the inner side of installation cavity 2 and cooling cavity 5, a plurality of heat conduction grooves 14 are opened in the inner side wall of cooling cavity 5, cooling cavity 5 is communicated with installation cavity 2, a plurality of radiating holes 7 are opened in one end of heat conduction hose 6 in circumferential arrangement, two heat conduction hoses 6 are placed in staggered arrangement, cooling cavity 5 is filled with cooling liquid, two fixed rings 8 are extended outside installation cavity 2, fixed part 601 is extended outside heat conduction hose 6 and near end, installation ring 9 is screwed outside heat conduction hose 6, installation ring 9 is screwed with fixed ring 8, a plurality of flow guide holes 13 are opened in the bottom of cooling cavity 5 in circumferential arrangement.

[0027] The cooling cavity 5 is U-shaped, two cooling cavities 5 are arranged in the shape of a cross, the heat-conducting hose 6 is a copper alloy hose, the heat-conducting hose 6 passes through the mounting cavity 2 into the cooling cavity 5 through the fixing ring 8, the heat-conducting hose 6 is deformed and moves in the cooling cavity 5, and then the mounting ring 9 is screwed with the fixing ring 8 to press and fix the heat-conducting hose 6 through the fixed part 601, the opening at the end of the cooling cavity 5 is attached to the bottom of the mounting cavity 2, so that the cooling liquid in the mounting cavity 2 enters the cooling cavity 5, and the cooling liquid in the cooling cavity 5 can absorb heat and cool the rod body 1 and the end of the rod body 1. The heat-conducting grooves 14 on the inner side wall of the cooling cavity 5 can increase the contact area of the cooling liquid with the rod body 1, and accelerate the cooling rate of the cooling liquid on the rod body 1.

[0028] Further, the heat-conducting hose 6 can absorb and conduct heat from the cooling liquid to the outside to accelerate the cooling rate of the cooling liquid, avoid the accumulation of heat of the cooling liquid to reduce the cooling rate of the rod body 1, and the plurality of flow guide holes 13 at the bottom of the cooling cavity 5 can facilitate the flow of the cooling liquid, and the cooling liquid flowing out of the rod body 1 can absorb heat and cool the end of the rod body 1 and the opening.

[0029] In addition, when the rod body 1 needs to be cooled urgently during non-working time, the mounting ring 9 is disassembled by using a tool, and then the heat-conducting hose 6 is pulled by using a pliers tool to make the heat-conducting hose 6 separate from the cooling cavity 5. After the heat-conducting hose 6 is quickly cooled by water, the cooling liquid or water solution is injected again to insert into the cooling cavity 5 to absorb heat and cool, and the above operation can be repeated multiple times.

[0030] More specifically, a plurality of heat-conducting rings 10 are uniformly arranged and fixedly connected to the outside of the heat-conducting hose 6 near the end, and a heat-dissipating plate 11 is fixedly connected between two heat-conducting rings 10. A plurality of ventilation holes 12 are uniformly arranged on the outside of the heat-conducting ring 10 and the outside of the heat-dissipating plate 11.

[0031] Further, the rod body 1 rotates quickly during working, the heat at the end of the heat-conducting hose 6 is low and the temperature inside the rod body 1 is high, so that the heat at the bottom of the rod body 1 and the heat of the cooling liquid are transferred to the end of the heat-conducting hose 6 to realize heat conduction. The heat-conducting ring 10 and the heat-dissipating plate 11 increase the area of contact between the heat-conducting hose 6 and air, and the rapid flow of air through the ventilation holes 12 and the heat-dissipating holes 7 can accelerate the heat dissipation rate, avoiding the continuous accumulation of heat of the cooling liquid to affect the heat dissipation rate of the rod body 1.

[0032] Working principle: first through the import pipe 3 to install cavity 2 and cooling cavity 5 into the injection of coolant, then the fixed cap 4 with import pipe 3 screw fixed, then heat pipe 6 through the fixed ring 8 is inserted into the installation cavity 2 and cooling cavity 5, then again using installation ring 9 with fixed ring 8 screw fixed, at the same time installation ring 9 through the fixed part 601 to heat pipe 6 compression fixed, then workpiece in the working process of heat, the cooling liquid will the heat of the bottom of the rod body 1 to low temperature area for heat conduction, at the same time heat pipe 6 will the heat of the rod body 1 and the heat of the cooling liquid to the end, at the same time heat ring 10 and heat sink 11 increase heat pipe 6 and air contact area, air through the vent hole 12 and heat dissipation hole 7 to flow quickly to accelerate the rate of heat dissipation.

[0033] The contents not described in detail in the description belong to the prior art known to those skilled in the art.

[0034] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A cooling device for deep hole machining tools, comprising a tool shank (1), characterized in that: An installation cavity (2) for filling coolant is fixedly connected to the outside of the rod (1) and near the upper middle part. An inlet pipe (3) for introducing coolant is fixedly connected to one side of the installation cavity (2). A fixing cap (4) is screwed to the top of the inlet pipe (3). A cooling component for absorbing heat and cooling is installed on the inside of the rod (1).

2. The cooling device for deep hole machining tools according to claim 1, characterized in that: The cooling component includes two cooling chambers (5) opened inside the rod body (1). Two heat-conducting hoses (6) are placed inside the mounting chamber (2) and the cooling chamber (5). The cooling chamber (5) is connected to the mounting chamber (2). One end of the heat-conducting hose (6) is provided with a plurality of circumferentially arranged heat dissipation holes (7). The two heat-conducting hoses (6) are placed in a staggered manner. The cooling chamber (5) is filled with coolant.

3. A cooling device for deep hole machining tools according to claim 2, characterized in that: Two fixing rings (8) extend outward from the mounting cavity (2), and a fixing part (601) extends outward from the heat-conducting hose (6) near its end. A mounting ring (9) is screwed onto the outside of the heat-conducting hose (6), and the mounting ring (9) is screwed onto the fixing ring (8).

4. A cooling device for deep hole machining tools according to claim 3, characterized in that: A plurality of uniformly arranged heat-conducting rings (10) are fixedly connected to the outside of the heat-conducting hose (6) and near its end, and a heat dissipation plate (11) is fixedly connected between two heat-conducting rings (10).

5. A cooling device for deep hole machining tools according to claim 4, characterized in that: Multiple ventilation holes (12) are evenly arranged on the outer side of the heat-conducting ring (10) and the outer side of the heat sink (11).

6. A cooling device for deep hole machining tools according to claim 2, characterized in that: The bottom of the cooling chamber (5) has multiple circumferentially arranged guide holes (13).

7. A cooling device for deep hole machining tools according to claim 2, characterized in that: The inner wall of the cooling chamber (5) is provided with a plurality of uniformly arranged heat-conducting grooves (14).

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