Machine tool spindle with good cooling effect

Abstract

The utility model relates to the technical field of machine tool spindles, and discloses a machine tool spindle with a good cooling effect, which comprises a spindle body, a cutter interface is arranged in the spindle body, a cooling component is arranged on the side wall of the spindle body, and a fixing component is arranged in the spindle body. The cooling assembly comprises a liquid cooling jacket and an air cooling jacket, the side wall of the liquid cooling jacket is slidably connected to the side wall of the spindle body, a cooling pipe is fixedly connected into the liquid cooling jacket, one end of the cooling pipe is fixedly connected with a water inlet pipe, and the other end of the cooling pipe is fixedly connected with a water outlet pipe. According to the main shaft, the liquid cooling jacket is arranged on the main shaft body in a sleeving mode, the main shaft body is cooled, the air cooling jacket is additionally arranged on the outer side of the liquid cooling jacket, heat exchange is carried out through the fan and the fins, the temperature of the main shaft body is reduced in an auxiliary mode, the overall cooling effect is enhanced, and the cooling effect of the main shaft is improved through the structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to lathe spindle technical field especially relates to a lathe spindle with good cooling effect. BACKGROUND

[0002] In modern manufacturing industry, as the core processing equipment, the performance of lathe directly affects the quality and production efficiency of products. And as the key component of lathe, the spindle will generate a lot of heat in the process of high speed and high precision machining. The temperature is too high, not only will cause the spindle deformation, reduce the machining precision, also can influence the service life of spindle, and then increase the production cost and equipment maintenance frequency. Therefore, the development of efficient and reliable cooling technology is essential to improve the performance of lathe spindle.

[0003] The existing lathe spindle cooling technology, more single cooling mode. Common is to set up simple cooling channel in the spindle, through the cooling liquid circulation in the channel, absorbs the heat generated by spindle operation, so as to maintain the normal working temperature of spindle. Its principle is mainly based on the heat conduction characteristics of cooling liquid, the heat of spindle is transferred to the cooling liquid, and then the cooling liquid is cooled by external cooling equipment.

[0004] The existing lathe spindle in the high speed operation of lathe, the heat generated by spindle increases greatly, only rely on the cooling liquid circulation in the internal cooling channel, it is difficult to quickly and fully take away a large amount of heat, the temperature is too high, not only will affect the precision of spindle, also will accelerate the wear of spindle parts, reduce the service life of spindle, and then affect the machining performance and stability of the whole lathe, therefore put forward a kind of lathe spindle with good cooling effect to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a kind of lathe spindle with good cooling effect, aims at improving the prior art only rely on the cooling liquid circulation in the internal cooling channel, it is difficult to quickly and fully take away a large amount of heat, the temperature of spindle is too high, reduces the service life of spindle problem.

[0006] In order to realize the above purpose, the utility model adopts the following technical scheme:

[0007] A kind of lathe spindle with good cooling effect, including spindle body, the tool interface is set up in the spindle body, the cooling assembly is arranged in the side wall of the spindle body, the fixed assembly is set up in the spindle body interior;

[0008] The cooling assembly includes a liquid cooling jacket and an air cooling jacket, the liquid cooling jacket is slidably connected to the side wall of the main shaft body, a cooling pipe is fixedly connected inside the liquid cooling jacket, one end of the cooling pipe is fixedly connected with an inlet pipe, the other end of the cooling pipe is fixedly connected with an outlet pipe, the air cooling jacket is sleeved on the side wall of the liquid cooling jacket, an air duct is formed in the air cooling jacket, heat dissipation fins are fixedly connected inside the air cooling jacket, a fan is fixedly connected to the side wall of the air cooling jacket, and an air outlet is formed in the side wall of the air cooling jacket.

[0009] As a further description of the above technical scheme:

[0010] The fixing assembly includes a mounting sleeve, the mounting sleeve is fixedly connected to the inside of the main shaft body, the mounting sleeve is located in the cutter interface, and a sliding groove is formed in the inside of the mounting sleeve.

[0011] As a further description of the above technical scheme:

[0012] The side wall of the air cooling jacket is threadedly connected with a bolt, and the liquid cooling jacket and the air cooling jacket are threadedly connected in the main shaft body through the bolt.

[0013] As a further description of the above technical scheme:

[0014] The cooling pipe is spirally arranged in the liquid cooling jacket, and the heat dissipation fins are uniformly arranged in the air cooling jacket.

[0015] As a further description of the above technical scheme:

[0016] The side wall of the mounting sleeve is fixedly connected with a fixing ring, and the side wall of the mounting sleeve is fixedly connected with a limiting block.

[0017] As a further description of the above technical scheme:

[0018] The side wall of the mounting sleeve is sleeved with a spring, one end of a sliding block slidably connected to the side wall of the mounting sleeve is fixedly connected to the side wall of the fixing ring, and the other end of the spring is fixedly connected to the inside of the sliding block.

[0019] As a further description of the above technical scheme:

[0020] The inside of the mounting sleeve is provided with a ball, the ball is slidably connected in the sliding groove, and the side wall of the sliding block is attached to the side wall of the ball.

[0021] The utility model has the advantages of:

[0022] 1. The utility model discloses a liquid cooling jacket is set to the main shaft body, and the cooling liquid is connected to the outside and enters the cooling pipe and cools the main shaft body, adds the air cooling jacket outside the liquid cooling jacket, and blows the air to the air cooling jacket inside through the fan, exchanges heat with the fin, carries away the heat on the fin, and the hot air after heat exchange is discharged from the air outlet, and the temperature of the main shaft body is reduced, the overall cooling effect is enhanced, when the machine tool high -speed operation, the heat of the main shaft is greatly increased, only relies on the cooling liquid circulation in the internal cooling channel, and it is difficult to quickly and fully carry away a large amount of heat, leads to the problem of the high temperature of the main shaft, reduces the service life of the main shaft, and the cooling effect of the main shaft is improved through the above structure.

[0023] 2. The utility model discloses a corresponding clamping groove is seted up on the cutter, and the installation sleeve is inserted inside, then the slide block is loosened, the spring is rebounded and the sliding extrusion ball is pushed, and then the ball is slid into the clamping groove in the cutter, realizes the quick installation cutter effect. DRAWINGS

[0024] Figure 1 It is the three-dimensional schematic view of the machine tool main shaft of the utility model that cooling effect is good;

[0025] Figure 2 It is the structure schematic view of the air cooling jacket of the machine tool main shaft of the utility model that cooling effect is good;

[0026] Figure 3 It is the structure schematic view of the air cooling jacket inside the machine tool main shaft of the utility model that cooling effect is good;

[0027] Figure 4 It is the structure schematic view of the installation sleeve of the machine tool main shaft of the utility model that cooling effect is good.

[0028] LEGEND:

[0029] 1, main shaft body;2, cutter interface;3, liquid cooling jacket;4, cooling pipe;5, water inlet pipe;6, water outlet pipe;7, air cooling jacket;8, air duct;9, fan;10, air outlet;11, radiating fin;12, bolt;13, installation sleeve;14, fixed ring;15, slide block;16, spring;17, limit block;18, sliding slot;19, ball. DETAILED DESCRIPTION

[0030] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] With reference to Figures 1-3 The utility model provides an embodiment: a kind of machine tool spindle of good cooling effect, including spindle body 1, tool interface 2 is set in spindle body 1 inside, the side wall of spindle body 1 is provided with cooling assembly, and fixed assembly is provided in the inside of spindle body 1;Cooling assembly includes liquid cooling jacket 3 and air cooling jacket 7, and the side wall of liquid cooling jacket 3 is slidably connected in the side wall of spindle body 1, and cooling pipe 4 is fixedly connected in the inside of liquid cooling jacket 3, one end of cooling pipe 4 is fixedly connected with water inlet pipe 5, the other end of cooling pipe 4 is fixedly connected with water outlet pipe 6, air cooling jacket 7 is sleeved in the side wall of liquid cooling jacket 3, air duct 8 is set in the inside of air cooling jacket 7, and heat dissipation fin 11 is fixedly connected in the inside of air cooling jacket 7, fan 9 is fixedly connected in the side wall of air cooling jacket 7, air outlet 10 is set in the side wall of air cooling jacket 7, and bolt 12 is screw-connected in the side wall of air cooling jacket 7, and liquid cooling jacket 3 and air cooling jacket 7 are all screw-connected in the inside of spindle body 1 by bolt 12, cooling pipe 4 is spirally around in the inside of liquid cooling jacket 3, and heat dissipation fin 11 is evenly arranged in the inside of air cooling jacket 7 in annular shape;

[0032] During the operation of the device, the external cooling liquid flows into the cooling pipe 4 from the water inlet pipe 5, the cooling pipe 4 spirally surrounds the inside of the liquid cooling jacket 3, the spiral design greatly prolongs the contact path and time of the cooling liquid with the main shaft body 1, so that the cooling liquid can fully absorb the heat generated by the main shaft body 1 during flow, and as the cooling liquid flows in the cooling pipe 4, it continuously absorbs heat and the temperature gradually rises, and finally flows out through the water outlet pipe 6, the water outlet pipe 6 is responsible for guiding the high-temperature cooling liquid after absorbing heat to the subsequent cooling circulation device for temperature reduction treatment, realizing the recycling of the cooling liquid, the air cooling jacket 7 is sleeved outside the liquid cooling jacket 3, and the two are connected with the main shaft body 1 through the bolts 12, the bolts 12 play a role in stable connection, ensuring that the air cooling jacket 7 and the liquid cooling jacket 3 are firmly installed on the main shaft body 1 and will not displace in the vibration environment of the device operation, ensuring the stability of the cooling system, the air duct 8 inside the air cooling jacket 7 provides a flow path for cooling air, guiding the orderly flow of air, the heat dissipation fins 11 are arranged in the air duct 8 in a ring shape, the heat dissipation fins 11 are attached to the outer wall of the liquid cooling jacket 3, and the main role is to significantly increase the heat dissipation area, when the fan 9 starts, the external cold air is sucked into the air duct 8, the fan 9 provides power to promote a large amount of cold air to quickly enter the air duct 8, and the cold air can quickly exchange heat with the fins and take away the heat on the fins when flowing through the heat dissipation fins 11, the hot air after heat exchange is discharged from the air outlet 10, and the continuously circulating cold air flow continuously takes away the heat on the heat dissipation fins 11, and then further cools the liquid cooling jacket 3, thereby assisting in reducing the temperature of the main shaft body 1 and enhancing the overall cooling effect, so that the main shaft can efficiently operate in a stable low-temperature environment, and the machining precision and stability of the machine tool are ensured.

[0033] With reference to Figure 1 and Figure 4 , the fixing assembly comprises a mounting sleeve 13 fixedly connected to the inside of the main shaft body 1, the mounting sleeve 13 is located inside the tool interface 2, a sliding groove 18 is formed in the inside of the mounting sleeve 13, a fixing ring 14 is fixedly connected to the side wall of the mounting sleeve 13, a limiting block 17 is fixedly connected to the side wall of the mounting sleeve 13, a spring 16 is sleeved on the side wall of the mounting sleeve 13, a sliding block 15 is slidingly connected to the side wall of the mounting sleeve 13, one end of the spring 16 is fixedly connected to the side wall of the fixing ring 14, the other end of the spring 16 is fixedly connected to the inside of the sliding block 15, a ball 19 is arranged in the inside of the mounting sleeve 13, the ball 19 is slidingly connected to the inside of the sliding groove 18, and the side wall of the sliding block 15 is attached to the side wall of the ball 19.

[0034] In the installation of the tool, first need to open the tool with the fixed assembly matching the card slot, installation, sliding block 15 sliding towards the fixed ring 14 direction, when the sliding block 15 sliding, will extrude spring 16 elastic potential energy, with the extrusion of sliding block 15, the original by the sliding block 15 on the ball 19 exerted by the fixed force is removed, the ball 19 in the sliding slot 18 can be freely sliding, when the tool is inserted into the tool interface 2, the ball 19 can move in the sliding slot 18, when the ball 19 and the corresponding card slot on the tool position relative, loose sliding block 15, because the spring 16 is extruded before stored elastic potential energy, the spring 16 releases the elastic potential energy, push sliding block 15 sliding, sliding block 15 under the action of spring 16, the sliding force generated by the sliding block 15 is transmitted to the ball 19, push the ball 19 sliding into the card slot on the tool, the ball 19 once sliding into the tool card slot, will form the card embedded effect, prevent the tool in the tool interface 2 random movement, so as to achieve the fixed effect, at this time, the tool can be firmly fixed in the tool interface 2, smoothly realize the quick installation of the tool, greatly improve the convenience and efficiency of the tool installation, reduce the time cost due to the installation of the tool, improve the overall work efficiency of the machine tool.

[0035] Working principle: in the process of the device, through the external cooling liquid from the inlet pipe 5 into the cooling pipe 4, due to the spiral around of the cooling pipe 4, the cooling liquid can fully absorb the heat generated by the main shaft body 1 in the process of flowing, with the cooling liquid flowing in the cooling pipe 4, the temperature gradually rises, finally through the outlet pipe 6 flow out, into the subsequent cooling cycle device for cooling treatment, air cooling jacket 7 is set outside the liquid cooling jacket 3, the two are connected with the main shaft body 1 through bolt 12, the air duct 8 inside the air cooling jacket 7 provides a flow path for the cooling air, the heat dissipation fin 11 is arranged in the air duct 8 in a ring shape, the heat dissipation fin 11 is attached to the outer wall of the liquid cooling jacket 3, when the fan 9 starts, the outside cold air is sucked into the air duct 8, the cold air flows through the heat dissipation fin 11, because the heat dissipation fin 11 increases the heat dissipation area, can quickly exchange heat with the fin, take away the heat on the fin, the hot air after heat exchange is discharged from the air outlet 10, the continuous circulation of cold air flow continuously takes away the heat on the heat dissipation fin 11, and further cools the liquid cooling jacket 3, auxiliary reduces the temperature of the main shaft body 1, enhances the overall cooling effect, in the installation of the tool, by opening the corresponding card slot on the tool, sliding the sliding block 15 towards the fixed ring 14, and extruding the spring 16, the fixed effect of the ball 19 is removed, when the tool is inserted into the tool interface 2, the ball 19 cooperates with the corresponding card slot on the tool, the sliding block 15 is loosened, so that it slides through the elastic force of the spring 16 and pushes the ball 19 into the card slot on the tool to achieve the fixed effect, at this time, the tool can be fixed in the tool interface 2, realizing the quick installation of the tool.

[0036] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A machine tool spindle with good cooling effect, comprising a spindle body (1), characterized in that: The spindle body (1) has a tool interface (2) inside, a cooling assembly is provided on the side wall of the spindle body (1), and a fixing assembly is provided inside the spindle body (1). The cooling assembly includes a liquid cooling jacket (3) and an air cooling jacket (7). The side wall of the liquid cooling jacket (3) is slidably connected to the side wall of the spindle body (1). A cooling pipe (4) is fixedly connected inside the liquid cooling jacket (3). A water inlet pipe (5) is fixedly connected to one end of the cooling pipe (4), and a water outlet pipe (6) is fixedly connected to the other end of the cooling pipe (4). The air cooling jacket (7) is fitted onto the side wall of the liquid cooling jacket (3). An air duct (8) is opened inside the air cooling jacket (7). Heat dissipation fins (11) are fixedly connected inside the air cooling jacket (7). A fan (9) is fixedly connected to the side wall of the air cooling jacket (7), and an air outlet (10) is opened on the side wall of the air cooling jacket (7).

2. The machine tool spindle with good cooling effect according to claim 1, characterized in that: The fixing component includes a mounting sleeve (13), the side wall of which is fixedly connected to the inside of the spindle body (1), the mounting sleeve (13) is located inside the tool interface (2), and a sliding groove (18) is provided inside the mounting sleeve (13).

3. A machine tool spindle with good cooling effect according to claim 1, characterized in that: The side wall of the air-cooled jacket (7) is threaded with bolts (12), and both the liquid-cooled jacket (3) and the air-cooled jacket (7) are threadedly connected to the inside of the spindle body (1) by the bolts (12).

4. A machine tool spindle with good cooling effect according to claim 1, characterized in that: The cooling pipe (4) is spirally wrapped inside the liquid cooling jacket (3), and the heat dissipation fins (11) are evenly arranged in a ring inside the air cooling jacket (7).

5. A machine tool spindle with good cooling effect according to claim 2, characterized in that: A fixing ring (14) is fixedly connected to the side wall of the mounting sleeve (13), and a limit block (17) is fixedly connected to the side wall of the mounting sleeve (13).

6. A machine tool spindle with good cooling effect according to claim 5, characterized in that: The mounting sleeve (13) is fitted with a spring (16) on its side wall, and a slider (15) is slidably connected to the side wall of the mounting sleeve (13).

7. A machine tool spindle with good cooling effect according to claim 6, characterized in that: One end of the spring (16) is fixedly connected to the side wall of the fixed ring (14), and the other end of the spring (16) is fixedly connected to the inside of the slider (15).

8. A machine tool spindle with good cooling effect according to claim 7, characterized in that: The mounting sleeve (13) is provided with a ball bearing (19) inside, the ball bearing (19) is slidably connected inside the groove (18), and the side wall of the slider (15) is attached to the side wall of the ball bearing (19).

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