CN210615982U

CN210615982U - CNC main shaft cooling device

Info

Publication number: CN210615982U
Application number: CN201921455809.8U
Authority: CN
Inventors: 李应钦; 何强; 张成源
Original assignee: Guizhou Liangcheng Electronics Co Ltd
Current assignee: Guizhou Liangcheng Electronics Co Ltd
Priority date: 2019-09-03
Filing date: 2019-09-03
Publication date: 2020-05-26
Anticipated expiration: 2029-09-03

Abstract

This scheme discloses a CNC main shaft cooling device in the machining equipment field, including main shaft and main shaft cover, the cooling jacket has been cup jointed on the main shaft cover, the cooling jacket comprises half cover on the left side and half cover on the right side that the structure is the same, half cover on the left side is equipped with inhalant canal, cooling channel and drainage channel, cooling channel is vertical annular chamber, and one side and inhalant canal intercommunication of cooling channel, opposite side intercommunication have a plurality of water jets, and the water jet runs through half cover on the inner wall on the left side, and a plurality of water jets set up side by side in vertical direction, and drainage channel's one end and cooling channel intercommunication, the other end are connected with the drain pipe. In the scheme, the cutting fluid for cooling the cutter is firstly removed from the cooling sleeve and then is cooled, so that the cooling effect of the main shaft and the cutter can be simultaneously achieved, and compared with the existing cooling mode of the oil cooling machine for the main shaft, the cost is greatly reduced.

Description

CNC main shaft cooling device

Technical Field

The utility model belongs to the machining equipment field, in particular to CNC main shaft cooling device.

Background

The numerical control machine tool can generate heat along with the rotation of the main shaft in the machining process, particularly a high-speed machine tool is high in main shaft rotating speed, more heat is generated, if the machine tool is not cooled in real time, the machining precision of the machine tool can be seriously influenced, the service life of the machine tool is shortened, and even the main shaft of the machine tool is locked due to thermal expansion. The existing machine tool cooling mode mainly adopts an independently configured oil cooler, the heat of lubricating oil in a main shaft oil tank is taken away by the oil cooler, the oil temperature of the lubricating oil in the main shaft oil tank is kept appropriate, the cooling effect is good, but the price is high, the investment cost is high, and customers cannot accept the cooling method.

SUMMERY OF THE UTILITY MODEL

The utility model provides a simple structure carries out refrigerated device to the main shaft, can reduce the temperature of main shaft fast, and for the cold quick-witted cooling of current oil, greatly reduced manufacturing cost.

A CNC main shaft cooling device in this scheme, including main shaft and main shaft cover, the cooling jacket has been cup jointed on the main shaft cover, the cooling jacket comprises the same left half cover of structure and right half cover, left side half cover is sheathe in with right half and is equipped with connecting portion, and connecting portion are equipped with the screw hole, and screw hole female connection has locking screw, be equipped with inhalant canal, cooling channel and drainage channel on the left side half cover, inhalant canal is connected with the inlet tube, and the inhalant canal is connected with the intake pump, cooling channel is vertical ring chamber, and one side and inhalant canal intercommunication of cooling channel, opposite side intercommunication have a plurality of water jets, and the water jet runs through the inner wall of left half cover, and a plurality of water jets set up side by side in vertical direction, and drainage channel's one end and cooling channel intercommunication, the.

The working principle and the beneficial effects of the scheme are as follows: in the scheme, the cooling sleeve consists of a left half sleeve and a right half sleeve, the cooling sleeve can be easily installed and fixed on the main shaft sleeve through the connecting part, heat generated by the main shaft is transferred to the main shaft sleeve, the main shaft sleeve only needs to be cooled, after the cooling sleeve is sleeved on the main shaft sleeve, the water inlet pump is placed into the water tank, cooling substances such as water, cooling liquid, cutting liquid and the like are injected into the water tank, cutting liquid is adopted, the outlet of the water outlet can be directly opposite to the cutter in the scheme, so that the cooling main shaft can be cooled and the cutter can be cooled, lubricated and rustproof at the same time, the cutting liquid rushes into the cooling channel through the water inlet pipe under the action of the water inlet pump, because the cooling channel is a vertical annular cavity, one side of the cooling channel is communicated with the water inlet channel, the other side of the cooling channel is communicated with a plurality of water spray nozzles, and the water spray nozzles penetrate, therefore, the cutting fluid is sprayed to the main shaft sleeve from the cutting fluid spraying nozzles, the cutting fluid absorbs heat of the main shaft sleeve under the action of heat exchange, so that the main shaft sleeve is cooled, and the main shaft is cooled. Then the cutting fluid is sprayed to the cutter from the drainage channel and the drainage pipe, and the cutter is cooled.

Because CNC lathe itself just needs to cool off the cutter, the cutting fluid that will cool off the cutter in this scheme is walked once again from the cooling jacket earlier and is gone to cool off the cutter, like this alright in order to reach the cooling effect of main shaft and cutter simultaneously, compares current increase alone the cold machine to the cooling method of main shaft, the cost that has significantly reduced.

Furthermore, the opening sizes of the plurality of water spraying openings are sequentially reduced from top to bottom. The water spray pressure of the water spray nozzles arranged from top to bottom is increased in sequence, hot water flowing down of the spindle sleeve is convenient to flush, and the condition that the cooling effect of the lower part of the spindle sleeve is not as good as that of the upper part is avoided.

Furthermore, the number of the drainage channels on the left half sleeve and the right half sleeve is two. The water flushing device aims to flush the cutter from four directions and increase the cooling effect of the cutter.

Further, the drain pipe is a metal shaping hose. The purpose is that the position of the drain pipe can be fixed at will, and the operation is convenient.

Further, the upper portion and the lower part of the left half sleeve inner wall are both provided with a sealing groove, the groove bottom of the sealing groove is communicated with the side wall of the threaded hole, a sealing strip is connected in the sealing groove in a sliding mode, a pushing tooth is arranged on the sealing strip and extends into the threaded hole, the pushing tooth is meshed with the locking screw in a threaded mode, and the length of the sealing strip on the left half sleeve is larger than that of the sealing strip on the right half sleeve. Through the setting of this scheme, with the left half cover with half right side cover back on the main shaft cover, when screwing up locking screw, push away the sealing strip in half left cover to half right cover in the seal groove, support with the sealing strip in half right cover and hold, realized sealed between cooling jacket and the main shaft cover, prevent that the cutting fluid from flowing from the gap between cooling jacket and the main shaft cover, influence processing.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is a connection diagram of the locking screw and the sealing strip in the embodiment of the present invention;

FIG. 3 is a schematic view of the structure of the sealing tape of FIG. 2;

FIG. 4 is a diagram illustrating the position relationship of the water jet nozzles according to the embodiment of the present invention;

fig. 5 is a position relation diagram of the sealing strip in the embodiment of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the water-cooling type water-cooling machine comprises a main shaft 1, a main shaft sleeve 2, a water inlet pipe 3, a left half sleeve 4, a right half sleeve 41, a water inlet channel 5, a cooling channel 6, a water spraying opening 7, a water drainage channel 8, a water drainage pipe 9, a sealing strip 10, a locking screw 11, a threaded hole 12, a cutter 13 and a pushing tooth 14.

Example 1 is substantially as shown in figures 1 and 4 of the accompanying drawings: a CNC cutting liquid cooling main shaft device comprises a main shaft 1 and a main shaft sleeve 2, wherein the main shaft sleeve 2 is sleeved with a cooling sleeve, the cooling sleeve is composed of a left half sleeve 4 and a right half sleeve 41 which are identical in structure, a connecting part is arranged on the left half sleeve 4 and the right half sleeve 41, a threaded hole 12 is arranged on the connecting part, a locking screw 11 is connected in the threaded hole 12 in a threaded manner, a water inlet channel 5, a cooling channel 6 and a drainage channel 8 are arranged on the left half sleeve 4, the water inlet channel 5 is connected with a water inlet pipe 3, the water inlet pipe 3 is connected with a water inlet pump, the cooling channel 6 is a vertical annular cavity, one side of the cooling channel 6 is communicated with the water inlet channel 5, the other side of the cooling channel 6 is communicated with a plurality of water spray nozzles 7, the water spray nozzles 7 penetrate through the inner wall of the left half sleeve 4, the water spray nozzles 7 are arranged side by side in the vertical direction, the, one end of the drainage channel 8 is communicated with the cooling channel 6, the other end of the drainage channel is connected with a drainage pipe 9, and the drainage pipe 9 is a metal shaping hose.

Because the cooling jacket is composed of the left half jacket 4 and the right half jacket 41, the cooling jacket can be easily installed and fixed on the main shaft jacket 2 through the connecting part, because the heat generated by the main shaft 1 is transferred to the main shaft jacket 2, only the main shaft jacket 2 needs to be cooled, after the cooling jacket is sleeved on the main shaft jacket 2, the water inlet pump is put into the water tank, the cutting fluid is injected into the water tank, the cutting fluid rushes into the water inlet pipe 3 and enters into the cooling channel 6 under the action of the water inlet pump, because the cooling channel 6 is a vertical annular cavity, one side of the cooling channel 6 is communicated with the water inlet channel 5, the other side is communicated with a plurality of water spray nozzles 7, the water spray nozzles 7 penetrate through the inner wall of the left half jacket 4, the cutting fluid rushes into the main shaft jacket 2 from the water spray nozzles 7, and absorbs the heat on the main shaft jacket 2 under the heat exchange action, thereby cooling the main shaft jacket 2 and further cooling the main, here, a plurality of water spray nozzles 7 are used for spraying cutting fluid on the main shaft sleeve 2, so that the upper section, the middle section and the lower section of the main shaft sleeve 2 can be contacted with low-temperature cooling fluid at the same time, and the cooling speed of the main shaft sleeve 2 is accelerated. The cutting fluid is then sprayed from the drain channel 8 and from the drain pipe 9 to the cutting tool 13, cooling the cutting tool 13.

Example 2: on the basis of the embodiment 1, the following structure is added, as shown in fig. 2, 3 and 5, the upper part and the lower part of the inner wall of the left half sleeve 4 are both provided with a sealing groove, the bottom of the sealing groove is communicated with the side wall of the threaded hole 12, the sealing groove is connected with the sealing strip 10 in a sliding manner, the sealing strip 10 is provided with a pushing tooth 14, the pushing tooth 14 extends into the threaded hole 12, the pushing tooth 14 is engaged with the thread of the locking screw 11, and the length of the sealing strip 10 on the left half sleeve 4 is greater than that of the sealing strip 10 on the right half sleeve 41. Through the arrangement, after the left half sleeve 4 and the right half sleeve 41 are sleeved on the main shaft sleeve 2, the locking screw 11 is tightened, and meanwhile, the sealing strip 10 in the left half sleeve 4 is pushed into the sealing groove of the right half sleeve 41 and is abutted against the sealing strip 10 in the right half sleeve 41, so that the sealing between the cooling sleeve and the main shaft sleeve 2 is realized, and the cutting fluid is prevented from flowing out from a gap between the cooling sleeve and the main shaft sleeve 2 to influence the processing.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a CNC main shaft cooling device, includes main shaft and main shaft cover, its characterized in that: the main shaft is sheathe in and has been cup jointed the cooling jacket, the cooling jacket comprises the same half cover on the left side of structure and the half cover on the right side, half cover on the left side and the half cover on the right side are equipped with connecting portion, and connecting portion are equipped with the screw hole, and screw hole female connection has locking screw, be equipped with inhalant canal, cooling channel and drainage channel on the half cover on the left side, inhalant canal is connected with the inlet tube, advances water piping connection and has the intake pump, cooling channel is vertical annular chamber, and one side and inhalant canal intercommunication of cooling channel, opposite side intercommunication have a plurality of water jets, and the water jet runs through the inner wall of half cover on the left side, and a plurality of water jets set up side by side in vertical direction.

2. The CNC spindle cooling apparatus according to claim 1, wherein: the opening sizes of the water spraying openings are reduced from top to bottom in sequence.

3. The CNC spindle cooling apparatus according to claim 2, wherein: and the number of the drainage channels on the left half sleeve and the right half sleeve is two.

4. A CNC spindle cooling apparatus according to claim 3, wherein: the drain pipe is a metal shaping hose.

5. A CNC spindle cooling arrangement according to any of claims 1-4, characterized by: the upper portion and the lower part of half cover inner wall on a left side all are equipped with the seal groove, and the tank bottom of seal groove and the lateral wall intercommunication of screw hole, sliding connection has the sealing strip in the seal groove, be equipped with on the sealing strip and promote the tooth, promote the tooth and stretch into the screw hole, promote the meshing of screw thread of tooth and locking screw, the length of the sealing strip on half cover on a left side is greater than the length of the sealing strip on half cover on the right side.