CN115609342A

CN115609342A - Milling assembly for manufacturing water-saving valve, milling machine and using method of milling assembly

Info

Publication number: CN115609342A
Application number: CN202211505775.5A
Authority: CN
Inventors: 李茉
Original assignee: Bolai Valve Changzhou Co ltd
Current assignee: Bolai Valve Changzhou Co ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-01-17

Abstract

The invention discloses a milling assembly for manufacturing a water-saving valve, a milling machine and a using method of the milling assembly, and belongs to the field of milling machines. Milling assembly for manufacturing water-saving valve, comprising: sealed axle sleeve and main shaft, the sealed rotation of main shaft still includes in sealed axle sleeve: a plurality of cooling grooves which are arranged on the main shaft at equal intervals; the communication grooves are arranged between two adjacent cooling grooves in a staggered manner; the cutter handle groove is cut at one end of the main shaft; the invention effectively improves the cooling efficiency of the milling cutter body, the main shaft and the cutter handle body, reduces the influence of milling temperature on the abrasion and the processing precision of the milling cutter body in the milling process, and can fully cool the interior of the processing end of the milling cutter body and reduce the heat conduction quantity from the milling cutter body to the cutter handle body, thereby reducing the influence of high temperature on the cutter handle body and the main shaft.

Description

Milling assembly for manufacturing water-saving valve, milling machine and using method of milling assembly

Technical Field

The invention relates to the technical field of milling machines, in particular to a milling assembly for manufacturing a water-saving valve, a milling machine and a using method of the milling assembly.

Background

The water-saving valve is a valve for controlling the flow of fluid by changing the throttling section or the throttling length, and has higher requirements on the sealing property and the processing precision of the water-saving valve because the water-saving valve is mostly used for conveying liquid, wherein the process of milling the end face of the water-saving valve is particularly important;

when the end face of the water-saving valve is milled at present, the water-saving valve is fixed, the main shaft drives the cutter handle and the milling cutter to rotate to mill the end face of the water-saving valve, and then cooling liquid is sprayed to the milling cutter and the water-saving valve through an independent cooling water pipe to cool, so that the milling cutter is prevented from being too high in temperature to influence the machining precision of the milling cutter.

In the prior art, the publication numbers are: CN113305338A, published as: 2021-08-27, discloses a milling cutter holding apparatus for machine manufacturing, comprising: the milling cutter comprises a clamp shell, a cooling liquid box, a milling cutter, a column body, a plurality of clamping assemblies, a transmission pipeline, a valve mechanism, a first liquid outlet, a second liquid outlet and the like.

In the above-mentioned patent, the coolant liquid enters into milling cutter internal passage from the second liquid outlet and cools off milling cutter inside, then flow to the milling cutter surface by first liquid outlet and cool off milling cutter surface, and the temperature of milling cutter machined surface rises the temperature fastest, and the temperature is the highest too, the coolant liquid flows to first liquid outlet from second liquid outlet, make the contact time of coolant liquid and milling cutter longer, probably can make the milling cutter whole rise the temperature, and the temperature can transmit on anchor clamps and the main shaft, probably can cause the main shaft thermal expansion micro-deformation, thereby increase the frictional force of main shaft and axle sleeve, influence its machining precision, and its cooling efficiency remains to further improve.

Disclosure of Invention

The technical problem to be solved by the present invention is to overcome the disadvantages of the prior art and to provide a milling assembly, a milling machine for manufacturing water saving valves, which overcomes or at least partially solves the above problems.

In order to achieve the purpose, the invention adopts the following technical scheme:

milling assembly for manufacturing water-saving valves, comprising: sealed axle sleeve and main shaft, the sealed rotation of main shaft still includes in sealed axle sleeve: a plurality of cooling grooves which are arranged on the main shaft at equal intervals; the communication grooves are arranged between two adjacent cooling grooves in a staggered manner; the cutter handle groove is cut at one end of the main shaft; the tool handle comprises a tool handle body, wherein a locking head is arranged on the tool handle body and detachably connected in a tool handle groove; the connecting water pipe is cut on the sealing shaft sleeve and communicated with the cooling groove far away from the cutter handle groove; the fourth water pipe is arranged in the cutter handle body; the water inlet groove is formed in the cutter handle body, second water pipes communicated with the water inlet groove are symmetrically arranged on the main shaft, and one end, far away from the water inlet groove, of each second water pipe is communicated with the cooling groove far away from one end, far away from the connecting water pipe, of each second water pipe; the third water pipes are symmetrically arranged in the cutter handle body, and two ends of each third water pipe are respectively communicated with the water inlet groove and the fourth water pipe; the four first water spray pipes are circumferentially arranged at one end, far away from the main shaft, of the tool handle body, and two of the first water spray pipes are communicated with a fourth water spray pipe; the annular water tank is arranged at one end, close to the first water spray pipe, of the cutter handle body and is communicated with the first water spray pipe; the milling cutter groove is formed in one end, far away from the main shaft, of the cutter handle body; the milling cutter comprises a milling cutter body, a cutter groove and a cutter head, wherein the milling cutter body is detachably connected in the milling cutter groove; the fifth water pipe is arranged in the milling cutter body and communicated with the fourth water pipe; the transfer water cavity is communicated with one end of the fifth water pipe, which is far away from the fourth water pipe; the plurality of chip grooves are circumferentially arranged at one end of the milling cutter body, which is far away from the cutter handle body; the half-sphere groove is cut at one end, far away from the cutter handle body, of the milling cutter body; the spiral water spraying pipes are circumferentially arranged in the milling cutter body, and are arranged between the hemispherical groove and the transfer water cavity.

In order to fix the handle of a knife body conveniently, preferably, the one end that the handle of a knife body was kept away from to the main shaft is dug and is had the cylinder groove, fixedly connected with cylinder in the cylinder groove, the output of cylinder is provided with first closing plate, the symmetry is dug in the main shaft has the locking groove, the locking inslot sealing slip has the latch segment that matches with the locking head, be provided with first hydraulic pressure oil pipe between one side that the locking head was kept away from in the locking groove and the cylinder tank bottom portion, the one end symmetry that the main shaft is close to the handle of a knife body is provided with the fixture block, the symmetry is dug on the handle of a knife body has the draw-in groove that matches with the fixture block.

In order to facilitate locking of the locking head, preferably, the output end of the cylinder is fixedly connected with a vent plate, the vent plate is arranged between the cylinder and the first sealing plate, a second spring is fixedly connected between the vent plate and the first sealing plate, and the cylindrical groove and the cooling groove are symmetrically provided with the booster pipes.

For the convenience of locking the locking head by the locking block, preferably, a first cavity and a second cavity are arranged in the locking block, a centrifugal slider is arranged between the first cavity and the second cavity in a sealing sliding mode, two sets of third springs are fixedly connected between one end of the centrifugal slider in the first cavity and the first cavity, a limiting sliding groove is formed in one end, close to the locking head, of the locking block, a limiting slider is arranged in the limiting sliding groove in a sealing sliding mode, and a connecting pipe is arranged between the bottom of the limiting sliding groove and the first cavity.

Preferably, one end of the locking groove, which is far away from the locking block, is fixedly connected with a locking sleeve, a locking slide rod fixedly connected with the locking block is arranged in the locking sleeve in a sealing and sliding manner, and a first water pipe is arranged between one end of the locking sleeve, which is far away from the locking slide rod, and the second water pipe.

In order to facilitate clamping of the milling cutter body, preferably, an expansion sleeve is arranged in the milling cutter groove, an expansion oil groove is formed between the expansion sleeve and the cutter handle body, an oil cavity is formed in the cutter handle body, a threaded sliding plate is arranged in the oil cavity in a sealing and sliding mode, a threaded rod is connected to the threaded sliding plate in a rotating mode, the threaded rod is connected to the cutter handle body in a threaded mode, a screwing head is fixedly connected to one end, outside the cutter handle body, of the threaded rod, and a second hydraulic oil pipe is arranged between one end, far away from the threaded rod, of the oil cavity and the expansion oil groove.

In order to prevent the knife handle body from shaking, preferably, a first sliding groove communicated with a fourth water pipe is arranged in the knife handle body, a double-head sliding rod is arranged between the first sliding groove and the oil cavity in a sealing sliding mode, and a fourth spring is arranged between one end of the double-head sliding rod in the first sliding groove and the first sliding groove.

A milling machine, comprising: the milling assembly is characterized in that an opening and closing door is symmetrically arranged on one side of the milling machine body, a supporting arm is fixedly connected to one side, away from the opening and closing door, of the milling machine body, a first limiting groove is formed in one side, close to the milling machine body, of the supporting arm, a fixed arm is arranged in the first limiting groove in a sliding mode, a lifting lead screw is arranged in the first limiting groove in a rotating mode, the lifting lead screw is in threaded connection with the fixed arm, a lifting motor is fixedly connected to the supporting arm, the output end of the lifting motor is fixedly connected with one end of the lifting lead screw, a sealing shaft sleeve is fixedly arranged on the fixed arm, a main motor is fixedly connected to the fixed arm, the output end of the main motor is fixedly connected with one end of a main shaft, a moving platform is arranged in the milling machine body, and a clamping platform is detachably connected to the moving platform, the end of the moving platform far away from the clamping platform is symmetrically provided with first driving blocks, the first driving blocks are arranged on the moving platform in a sliding manner, two first driving blocks are in threaded connection with first lead screws, the support arm is internally and fixedly connected with a first motor, the output end of the first motor is fixedly connected with the first lead screws, the end of the moving platform far away from the clamping platform is provided with a second driving block in a sliding manner, the second driving block is in threaded connection with second lead screws, one side of the milling machine body is fixedly connected with a second motor, the output end of the second motor is fixedly connected with one end of the second lead screws, one end of the clamping platform far away from the moving platform is fixedly connected with a first clamping block and a first fixed block, a second clamping block is arranged between the first clamping block and the first fixed block in a sliding manner, and the second clamping block is rotatably connected with a driving lead screw, the driving screw rod is in threaded connection with the first fixing block, two symmetrical first limiting rods are fixedly connected to the second clamping block, and the first limiting rods are in sliding connection with the first fixing block.

In order to supply high-pressure cooling liquid to the cooling groove conveniently, preferably, an equipment box is fixedly connected to the fixed arm, a high-pressure water pump is fixedly connected to the inside of the equipment box, a first water inlet pipe is fixedly connected to an input end of the high-pressure water pump, and an output end of the high-pressure water pump is communicated with the connecting water pipe.

Compared with the prior art, the invention provides a milling assembly and a milling machine for manufacturing a water-saving valve, which have the following beneficial effects:

1. according to the milling assembly and the milling machine for manufacturing the water-saving valve, the cooling liquid flows into the cooling grooves from the connecting water pipe, and the cooling liquid flows into the plurality of cooling grooves on the main shaft through the plurality of communication grooves which are arranged in a staggered mode to cool the main shaft, so that the temperature of the main shaft is effectively prevented from being increased, the outer surface of the main shaft is prevented from being slightly deformed, the friction force between the main shaft and the sealing shaft sleeve is prevented from being increased, and the service life of the sealing shaft sleeve and the service life of the main shaft are prolonged.

2. The milling assembly and the milling machine are used for manufacturing the water-saving valve, cooling liquid in a cooling groove flows into a fourth water pipe through a second water pipe, a water inlet groove and a third water pipe, the interior of a cutter handle body is cooled, the cooling liquid in the fourth water pipe enters an annular water groove through two first water spray pipes, the joint of the cutter handle body and the milling cutter body is cooled, the cooling liquid in the annular water groove is sprayed onto the milling cutter body through the first water spray pipes to cool the outer surface of the milling cutter body, the cooling liquid in the fourth water pipe is sprayed onto the joint of the milling cutter body and a water-saving valve through a plurality of spiral water spray pipes to cool the cutter openings of the water-saving valve and the milling cutter body, the influence of milling temperature on the abrasion and the machining precision of the milling cutter body in the milling process is effectively reduced, meanwhile, the interior of a cutter handle of a machining end of the milling cutter body can be sufficiently cooled, the heat conduction amount of the milling cutter body to the milling cutter body is reduced, the influence of high temperature on the milling cutter body and a main shaft is reduced, and the chip removal of the milling cutter body is facilitated by the cooling liquid sprayed by the spiral water spray pipes.

3. This water-saving valve is made with milling subassembly, milling machine, the coolant liquid in the cooling bath passes through the pressure tube and flows to the cylinder inslot, and the coolant liquid passes ventilative board and exerts pressure to first closing plate, has increased the pressure to first closing plate to increased the pressure of hydraulic oil to the locking piece, and then promoted the locking effect to the handle of a knife body effectively, prevented that the handle of a knife body from rocking and influence the machining precision to water-saving valve.

The device has the advantages that the cooling efficiency of the milling cutter body, the main shaft and the cutter handle body is effectively improved, the influence of milling temperature on the abrasion and the processing precision of the milling cutter body in the milling process is reduced, meanwhile, the interior of the processing end of the milling cutter body can be sufficiently cooled, the heat conduction quantity of the milling cutter body to the cutter handle body is reduced, and therefore the influence of high temperature on the cutter handle body and the main shaft is reduced.

Drawings

Fig. 1 is a schematic structural diagram of a milling machine according to the present invention;

fig. 2 is a schematic cross-sectional view of a milling machine according to the present invention;

FIG. 3 is a schematic cross-sectional view of a tool holder body of the milling assembly for manufacturing the water-saving valve provided by the invention;

fig. 4 is a schematic structural diagram of a mobile platform of a milling machine according to the present invention;

FIG. 5 is a schematic structural diagram of an equipment box of a milling machine according to the present invention;

FIG. 6 is a schematic cross-sectional view of a milling assembly for manufacturing a water-saving valve according to the present invention;

FIG. 7 is an enlarged schematic view at A of FIG. 6 of a milling assembly for manufacturing the water saving valve in accordance with the present invention;

FIG. 8 is an enlarged schematic view at B in FIG. 6 of a milling assembly for manufacturing the water saving valve in accordance with the present invention;

FIG. 9 is an enlarged schematic view at C of FIG. 6 of the milling assembly for manufacturing the water saving valve in accordance with the present invention;

FIG. 10 is a schematic cross-sectional view of a locking block of the milling assembly for manufacturing the water-saving valve according to the present invention;

FIG. 11 is an enlarged schematic view at D of FIG. 10 of the milling assembly for manufacturing the water saving valve in accordance with the present invention;

FIG. 12 is a first structural schematic diagram of a cutter handle body of the milling assembly for manufacturing the water-saving valve, provided by the invention;

FIG. 13 is a second schematic structural view of a tool holder body of the milling assembly for manufacturing the water-saving valve provided by the invention;

FIG. 14 is a schematic structural view of a locking block of the milling assembly for manufacturing the water-saving valve according to the present invention;

FIG. 15 is a schematic structural view of a main shaft of the milling assembly for manufacturing the water-saving valve according to the present invention;

fig. 16 is a schematic structural view of a clamping platform of a milling machine according to the present invention;

FIG. 17 is a schematic structural view of a milling cutter body of the milling assembly for manufacturing the water-saving valve, which is provided by the invention;

FIG. 18 is a schematic cross-sectional view of a double-ended slide bar of the milling assembly for water saving valve manufacture in accordance with the present invention;

FIG. 19 is an enlarged schematic view at F of FIG. 18 of the milling assembly for manufacturing the water saving valve in accordance with the present invention;

fig. 20 is a schematic sectional view of an equipment box of a milling machine according to the present invention;

fig. 21 is an enlarged schematic view of a milling machine according to the present invention at E in fig. 20.

In the figure: 1. a milling machine body; 101. opening and closing the door; 102. a console; 103. a mobile platform; 1031. a first driving block; 1032. a first lead screw; 1033. a first motor; 1034. a second driving block; 1035. a second screw rod; 1036. a second motor; 104. a clamping platform; 1041. a first clamping block; 1042. a second clamping block; 1043. a first fixed block; 1044. driving the screw rod; 1045. a first limit rod; 105. a support arm; 1051. a first limit groove; 1052. a lifting motor; 1053. a lifting screw rod; 106. a fixed arm; 1061. a main motor; 107. an equipment box; 1071. a high pressure water pump; 1072. a first water inlet pipe; 1073. a first water outlet pipe; 1074. an impeller case; 1075. an impeller assembly; 1076. a rotating shaft; 1077. a cam; 1078. a second water outlet pipe; 108. an oil-gas pump; 1081. a first oil inlet pipe; 1082. a transit tube; 1083. a sealing sleeve; 1084. a first slide bar; 1085. a first spring; 1086. a pressurizing port; 1087. an air return pipe; 1088. a first oil and gas pipe; 2. a main shaft; 201. a cooling tank; 202. a communicating groove; 203. a cylindrical groove; 2031. a cylinder; 2032. a pressure increasing pipe; 2033. a gas permeable plate; 2034. a first sealing plate; 2035. a second spring; 204. a tool shank slot; 205. a clamping block; 206. a locking groove; 2061. a locking block; 2062. a first cavity; 2063. a second cavity; 2064. a centrifugal slider; 2065. a third spring; 2066. a limiting chute; 2067. a limiting slide block; 2068. a connecting pipe; 2069. a first hydraulic oil pipe; 207. a locking sleeve; 2071. locking the sliding rod; 2072. a first water pipe; 2073. a second water pipe; 3. sealing the shaft sleeve; 301. connecting a water pipe; 302. a limit bearing; 303. bearing steel balls; 304. a second hydrocarbon pipe; 305. an oil gas spray pipe; 306. an auxiliary bearing; 4. a knife handle body; 401. a locking head; 402. a water inlet groove; 403. a third water pipe; 404. a card slot; 405. milling a cutter groove; 4051. an expansion sleeve; 4052. an expansion oil tank; 4053. a second hydraulic oil pipe; 4054. an oil chamber; 4055. a threaded slide plate; 4056. a threaded rod; 4057. screwing the head; 406. a fourth water pipe; 4061. a first chute; 4062. a double-ended slide bar; 4063. a fourth spring; 407. a first water spray pipe; 408. an annular water tank; 5. a milling cutter body; 501. a hemispherical groove; 502. a fifth water pipe; 503. a chip groove; 504. a transfer water cavity; 505. a spiral water spraying pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example 1: referring to fig. 3, 6, 9, 12, 13, 15, 17 and 20, the milling assembly for manufacturing a water saving valve includes: sealed axle sleeve 3 and main shaft 2, main shaft 2 sealed rotation still includes in sealed axle sleeve 3: a plurality of cooling grooves 201, the plurality of cooling grooves 201 being arranged on the main shaft 2 at equal intervals; communication grooves 202, the communication grooves 202 being provided alternately between two adjacent cooling grooves 201; a shank groove 204, the shank groove 204 being cut at one end of the spindle 2; the tool holder comprises a tool holder body 4, wherein a locking head 401 is arranged on the tool holder body 4, and the locking head 401 is detachably connected in a tool holder groove 204; the connecting water pipe 301 is cut on the sealing shaft sleeve 3, and the connecting water pipe 301 is communicated with the cooling groove 201 far away from the cutter handle groove 204; the fourth water pipe 406, the fourth water pipe 406 is arranged in the knife handle body 4; the water inlet groove 402 is formed in the cutter handle body 4, the main shaft 2 is symmetrically provided with second water pipes 2073 communicated with the water inlet groove 402, and one ends, far away from the water inlet groove 402, of the second water pipes 2073 are communicated with the cooling groove 201 far away from one end, far away from the connecting water pipe 301, of the second water pipes 2073; the third water pipes 403 are symmetrically arranged in the tool handle body 4, and two ends of each third water pipe 403 are respectively communicated with the water inlet groove 402 and the fourth water pipe 406; the four first water spray pipes 407 are circumferentially arranged at one end of the tool shank body 4 away from the main shaft 2, wherein two first water spray pipes 407 are communicated with the fourth water spray pipe 406; the annular water tank 408 is arranged at one end of the cutter handle body 4 close to the first water spray pipe 407, and the annular water tank 408 is communicated with the first water spray pipe 407; the milling cutter groove 405 is formed in one end, far away from the main shaft 2, of the cutter handle body 4; the milling cutter comprises a milling cutter body 5, wherein the milling cutter body 5 is detachably connected in a milling cutter groove 405; the fifth water pipe 502, the fifth water pipe 502 is arranged in the milling cutter body 5, and the fifth water pipe 502 is communicated with the fourth water pipe 406; the transfer water cavity 504, the transfer water cavity 504 is communicated with one end of the fifth water pipe 502 far away from the fourth water pipe 406; the plurality of chip grooves 503 are circumferentially arranged at one end of the milling cutter body 5, which is far away from the cutter handle body 4; the semi-spherical groove 501, the semi-spherical groove 501 is cut at one end of the milling cutter body 5 far away from the cutter handle body 4; a plurality of spiral water spray pipes 505, the spiral water spray pipes 505 are circumferentially arranged in the milling cutter body 5, and the spiral water spray pipes 505 are arranged between the hemispherical grooves 501 and the water transfer cavity 504.

Fixedly connected with equipment box 107 on fixed arm 106, fixedly connected with high pressure water pump 1071 in the equipment box 107, the first inlet tube 1072 of input fixedly connected with of high pressure water pump 1071, high pressure water pump 1071's output is linked together with connecting water pipe 301.

When milling the water-saving valve section, the external driving source drives the main shaft 2 to rotate, the main shaft 2 drives the cutter handle body 4 to rotate, the cutter handle body 4 drives the milling cutter body 5 to rotate to process the water-saving valve section, when processing, the high-pressure water pump 1071 is started, the high-pressure water pump 1071 extracts external cooling liquid through the first water inlet pipe 1072 and conveys the connecting water pipe 301 in, the cooling liquid flows to the cooling tank 201 from the connecting water pipe 301, the cooling liquid flows to the main shaft 2 through the plurality of communication grooves 202 arranged in a staggered mode and cools the main shaft 2 in the plurality of cooling tanks 201, thereby effectively preventing the temperature of the main shaft 2 from rising, and further preventing the outer surface of the main shaft 2 from generating micro-deformation to increase the friction force between the main shaft 2 and the sealing shaft sleeve 3, and prolonging the service life of the sealing shaft sleeve 3 and the main shaft 2.

The coolant in the cooling tank 201 flows into the fourth water pipe 406 through the second water pipe 2073, the water inlet tank 402 and the third water pipe 403 to cool the interior of the cutter handle body 4, the coolant in the fourth water pipe 406 enters the annular water tank 408 through two of the first water spray pipes 407, the joint of the cutter handle body 4 and the cutter body 5 is cooled, the coolant in the annular water tank 408 is sprayed onto the cutter body 5 through the first water spray pipes 407 to cool the outer surface of the cutter body 5, the coolant in the fourth water pipe 406 enters the transit water cavity 504, the coolant in the transit water cavity 504 is sprayed onto the joint of the cutter body 5 and the water-saving valve through the spiral water spray pipes 505 to cool the cutter mouth of the water-saving valve and the cutter body 5, so that the influence of the milling temperature on the abrasion and the machining precision of the cutter body 5 in the milling process is effectively reduced, meanwhile, the interior of the machining end of the cutter body 5 can be sufficiently cooled, the heat conduction quantity of the cutter body 5 to the cutter handle body 4 is reduced, the influence of the high temperature on the cutter handle body 4 and the spindle 2 is reduced, and the chip removal of the coolant of the milling cutter body 5 by the spiral water spray pipes.

Example 2: referring to fig. 3, 6, 8, 10, 11 and 14, the milling assembly for manufacturing the water-saving valve is substantially the same as that in embodiment 1, further, a cylindrical groove 203 is formed in one end of the main shaft 2, which is far away from the tool holder body 4, an air cylinder 2031 is fixedly connected in the cylindrical groove 203, a first sealing plate 2034 is arranged at an output end of the air cylinder 2031, locking grooves 206 are symmetrically formed in the main shaft 2, locking blocks 2061 matched with the locking head 401 are hermetically and slidably arranged in the locking grooves 206, a first hydraulic oil pipe 2069 is arranged between one side of the locking grooves 206, which is far away from the locking head 401, and the bottom of the cylindrical groove 203, clamping blocks 205 are symmetrically arranged at one end of the main shaft 2, which is near the tool holder body 4, and clamping grooves 404 matched with the clamping blocks 205 are symmetrically formed in the tool holder body 4.

The output end of the cylinder 2031 is fixedly connected with a ventilation plate 2033, the ventilation plate 2033 is arranged between the cylinder 2031 and the first sealing plate 2034, a second spring 2035 is fixedly connected between the ventilation plate 2033 and the first sealing plate 2034, and pressurizing pipes 2032 are symmetrically arranged between the cylindrical groove 203 and the cooling groove 201.

When the tool shank body 4 is installed, the locking head 401 of the tool shank body 4 is inserted into the tool shank groove 204, the fixture block 205 on the spindle 2 is clamped into the clamping groove 404, the cylinder 2031 is started, the output end of the cylinder 2031 extrudes the air permeable plate 2033 to slide downwards, the air permeable plate 2033 compresses the second spring 2035, the second spring 2035 compresses the first sealing plate 2034 to slide downwards after being compressed to the maximum limit, the first sealing plate 2034 extrudes hydraulic oil in the cylindrical groove 203, the hydraulic oil in the cylindrical groove 203 enters the locking groove 206 through the first hydraulic oil pipe 2069, so that the locking block 2061 is pushed to move towards the locking head 401 to lock the locking head 401, when the high-pressure water pump 1071 fills the cooling liquid into the cooling groove 201, the cooling liquid in the cooling groove 201 flows into the cylindrical groove 203 through the pressurizing pipe 2032, the cooling liquid passes through the air permeable plate 2033 to apply pressure to the first sealing plate 2034, so that the pressure on the first hydraulic oil pipe 4 is increased, and the pressure on the locking head is further, the pressure of the locking block 2034 is increased, and the effect of the valve body on the tool shank body is effectively prevented from shaking.

Example 3: referring to fig. 10, 11 and 14, the milling assembly for manufacturing the water-saving valve is substantially the same as that of embodiment 1, further, a first cavity 2062 and a second cavity 2063 are arranged in the locking block 2061, a centrifugal slider 2064 is arranged between the first cavity 2062 and the second cavity 2063 in a sealing and sliding manner, two sets of third springs 2065 are fixedly connected between one end of the centrifugal slider 2064 in the first cavity 2062 and the first cavity 2062, a limit chute 2066 is arranged at one end of the locking block 2061 close to the locking head 401, a limit slider 2067 is arranged in the limit chute 2066 in a sealing and sliding manner, and a connecting pipe 2068 is arranged between the bottom of the limit chute 2066 and the first cavity 2062.

When the main shaft 2 rotates, the centrifugal sliding block 2064 slides in the first cavity 2062 under the action of centrifugal force, the centrifugal sliding block 2064 extrudes gas in the first cavity 2062, the gas enters the limiting sliding groove 2066 through the connecting pipe 2068, the gas pushes the limiting sliding block 2067 to slide outwards, and the locking head 401 is extruded, so that the cutter handle body 4 is further locked, the milling error caused by shaking generated by the cutter handle body 4 during the process of machining the water-saving valve is prevented, and when the main shaft 2 stops rotating, the limiting sliding block 2067 is pulled by the third spring 2065 to reset.

It should be noted that the pulling force of the third spring 2065 is greater than the friction force applied to the stopper block 2067.

Example 4: referring to fig. 10 and 11, the milling assembly for manufacturing a water-saving valve is substantially the same as that of embodiment 1, and further, one end of the locking groove 206, which is far away from the locking block 2061, is fixedly connected with a locking sleeve 207, a locking slide rod 2071, which is fixedly connected with the locking block 2061, is hermetically slid in the locking sleeve 207, and a first water pipe 2072 is arranged between one end of the locking sleeve 207, which is far away from the locking slide rod 2071, and a second water pipe 2073.

When the high pressure water pump 1071 continuously fills the cooling liquid into the connection water pipe 301, the cooling liquid in the second water pipe 2073 enters the locking sleeve 207 through the first water pipe 2072, and under the action of the cooling liquid pressure, the cooling liquid in the locking sleeve 207 applies pressure to the locking slide rod 2071, thereby further promoting the clamping effect on the locking head 401.

Example 5: referring to fig. 12, 18 and 19, the milling assembly for manufacturing the water-saving valve is substantially the same as that of embodiment 1, and further, an expansion sleeve 4051 is arranged in the milling cutter groove 405, an expansion oil groove 4052 is arranged between the expansion sleeve 4051 and the cutter handle body 4, an oil chamber 4054 is arranged in the cutter handle body 4, a threaded sliding plate 4055 is arranged in the oil chamber 4054 in a sealing and sliding manner, a threaded rod 4056 is rotatably connected to the threaded sliding plate 4055, the threaded rod 4056 is in threaded connection with the cutter handle body 4, a screwing head 4057 is fixedly connected to one end of the threaded rod 4056 outside the cutter handle body 4, and a second hydraulic oil pipe 4053 is arranged between one end of the oil chamber 4054 far away from the threaded rod 4056 and the expansion oil groove 4052.

Be provided with in the handle of a knife body 4 with the communicating first spout 4061 of fourth water pipe 406, sealed the slip has double-end slide bar 4062 between first spout 4061 and the oil pocket 4054, and double-end slide bar 4062 is provided with fourth spring 4063 between the one end in first spout 4061 and first spout 4061.

When the milling cutter body 5 is installed, the installation end of the milling cutter body 5 is inserted into the milling cutter groove 405, the screwing head 4057 is rotated to drive the threaded rod 4056 to rotate, the threaded rod 4056 is moved into the cutter handle body 4, the threaded rod 4056 drives the threaded sliding plate 4055 to extrude hydraulic oil in the oil cavity 4054, the hydraulic oil enters the expansion oil groove 4052 through the second hydraulic oil pipe 4053, the expansion sleeve 4051 is deformed to extrude the milling cutter body 5, the milling cutter body 5 is prevented from shaking during machining, machining errors of the milling cutter body 5 are reduced, pressure on the oil cavity 4054 is applied to the sliding rod 4062 by cooling liquid in the fourth water pipe 406, when the main shaft 2 drives the cutter handle body 4 to rotate, the double-head sliding rod 4062 has centrifugal force, and the centrifugal force applies force to the oil cavity 4062 in the direction of the oil cavity 4054 to extrude the double-head oil cavity 4054, and the milling cutter body 5 is further clamped and fixed.

Example 6: referring to fig. 1, 2, 3, 4, 5, 16, 20 and 21, a milling machine includes: a milling assembly for manufacturing a milling machine body 1 and a water-saving valve is arranged, a control table 102 is arranged on the milling machine body 1, an opening and closing door 101 is symmetrically arranged on one side of the milling machine body 1, a support arm 105 is fixedly connected to one side, far away from the opening and closing door 101, of the support arm 105, a first limit groove 1051 is formed in one side, close to the milling machine body 1, of the support arm 105, a fixed arm 106 is arranged in the first limit groove 1051 in a sliding mode, a lifting lead screw 1053 is rotatably arranged in the first limit groove 1051, the lifting lead screw 1053 is in threaded connection with the fixed arm 106, a lifting motor 1052 is fixedly connected to the support arm 105, the output end of the lifting motor 1052 is fixedly connected with one end of the lifting lead screw 1053, a sealing shaft sleeve 3 is fixedly arranged on the fixed arm 106, a main motor 1061 is fixedly connected to the fixed arm 106, the output end of the main motor 1061 is fixedly connected with one end of a main shaft 2, a moving platform 103 is arranged in the milling machine body 1, a clamping platform 104 is detachably connected to the moving platform 103, first driving blocks 1031 are symmetrically arranged at one end of the moving platform 103 far away from the clamping platform 104, the first driving blocks 1031 are arranged on the moving platform 103 in a sliding manner, first lead screws 1032 are connected with the two first driving blocks 1031 in internal threads, a first motor 1033 is fixedly connected in the supporting arm 105, the output end of the first motor 1033 is fixedly connected with the first lead screws 1032, a second driving block 1034 is arranged at one end of the moving platform 103 far away from the clamping platform 104 in a sliding manner, a second lead screw 1035 is connected with the second driving block 1034 in internal threads, a second motor 1036 is fixedly connected at one side of the milling machine body 1, the output end of the second motor 1036 is fixedly connected with one end of the second lead screw 1035, a first clamping block 1041 and a first fixing block 1043 are fixedly connected at one end of the clamping platform 104 far away from the moving platform 103, a second clamping block 1042 is arranged between the first clamping block 1041 and the first fixing block 1043 in a sliding manner, the second clamping block 1042 is rotatably connected with a driving screw 1044, the driving screw 1044 is in threaded connection with the first fixing block 1043, the second clamping block 1042 is fixedly connected with two symmetrical first limiting rods 1045, and the first limiting rods 1045 are in sliding connection with the first fixing block 1043.

The fixed arm 106 is fixedly connected with an equipment box 107, a high-pressure water pump 1071 is fixedly connected in the equipment box 107, the input end of the high-pressure water pump 1071 is fixedly connected with a first water inlet pipe 1072, the output end of the high-pressure water pump 1071 is communicated with the connecting water pipe 301, and the console 102 is used for controlling the opening and closing of the first motor 1033, the second motor 1036, the lifting motor 1052 and the main motor 1061.

When the water-saving valve is machined, the machined end face of the water-saving valve is aligned with the milling cutter body 5 upwards, the water-saving valve is clamped through the first clamping block 1041, the second clamping block 1042, the first fixing block 1043, the driving screw 1044 and the first limiting rod 1045 on the clamping platform 104, the lifting screw 1053 is driven by the lifting motor 1052 to rotate to adjust the height of the fixing arm 106, the end face of the water-saving valve is conveniently machined, and the clamping platform 104 is driven to move through the moving platform 103, the first driving block 1031, the first screw 1032, the first motor 1033, the second driving block 1034, the second screw 1035 and the second motor 1036.

The first water inlet pipe 1072 is connected to the inside of an external coolant storage device, and the high pressure water pump 1071 pumps the coolant into the connecting water pipe 301.

It should be noted that the external coolant storage device may be, but not limited to, a coolant circulation tank commonly used in the prior art, and the coolant may also be water directly.

Example 7: referring to fig. 2, 6, 7, 20 and 21, a milling machine is substantially the same as that in embodiment 6, further, an auxiliary bearing 306 is disposed at an end of the main shaft 2 away from the main motor 1061, a limit bearing 302 is disposed at an end of the main shaft 2 close to the main motor 1061, a plurality of sets of circumferentially arranged bearing steel balls 303 are disposed in the limit bearing 302, the bearing steel balls 303 are rotatably disposed in the limit bearing 302, a second oil and gas pipe 304 is disposed in the limit bearing 302, an oil and gas injection pipe 305 communicated with the second oil and gas pipe 304 is disposed at an end of the second oil and gas pipe 304 close to the bearing steel balls 303, the oil and gas injection pipe 305 is disposed between two adjacent sets of bearing steel balls 303, an oil and gas pump 108 is fixedly connected in the equipment box 107, an input end of the oil and gas pump 108 is fixedly connected with a first oil inlet pipe 1081, an output end of the oil and gas pump 108 is fixedly connected with a transfer pipe 1082, a first oil and gas pipe 8 is fixedly connected between one end of the transfer pipe 1082 away from the oil and gas pump 108 and the second oil and gas pipe 304, a sealing sleeve 1083 is fixedly connected in the transit pipe 1082, a first sliding rod 1084 is hermetically and slidably arranged in the sealing sleeve 1083, a first spring 1085 is fixedly connected between the sealing sleeve 1083 and the first sliding rod 1084, a pressure boosting port 1086 is arranged at one end of the sealing sleeve 1083 in the transit pipe 1082, an air return pipe 1087 communicated with the outside of the equipment box 107 is arranged at one end of the sealing sleeve 1083 close to the pressure boosting port 1086, an impeller box 1074 is fixedly connected in the equipment box 107, a rotating shaft 1076 is rotatably arranged in the impeller box 1074, one end of the rotating shaft 1076 penetrates through the impeller box 1074, the rotating shaft 1076 is hermetically and movably connected with the impeller box 1074, one end of the rotating shaft 1076 in the impeller box 1074 is fixedly connected with an impeller set 1075, one end of the rotating shaft 1076 outside the impeller box 1074 is fixedly connected with a cam 1077 matched with the first sliding rod 1084, a first water outlet pipe 1073 is arranged between the output end of the high-pressure water pump 1071 and the impeller box 1074, a second water outlet pipe 1078 communicated with the connection water pipe 301 is provided to a side of the impeller case 1074 remote from the first water outlet pipe 1073.

Open oil air pump 108 and draw lubricating oil, in oil gas pump 108 output lubricating oil gas to transfer pipe 1082, the lubricating oil gas sprays main shaft 2's surface through first oil gas pipe 1088, second oil gas pipe 304 and oil gas spray tube 305, promotes main shaft 2 and bearing steel ball 303's lubricated effect to reduce main shaft 2 and limit bearing 302's rate of wear, improved the life of equipment.

When the spindle 2, the cutter holder body 4 and the milling cutter body 5 are cooled, the high-pressure water pump 1071 is started, cooling liquid in the high-pressure water pump 1071 enters the impeller box 1074 through the first water outlet pipe 1073 and is discharged through the second water outlet pipe 1078, the cooling liquid drives the rotating shaft 1076 to rotate through the impeller set 1075, the rotating shaft 1076 drives the cam 1077 to rotate, the first sliding rod 1084 reciprocates in the sealing sleeve 1083 under the action of the cam 1077 and the first spring 1085, when the first sliding rod 1084 slides towards the sealing sleeve 1083, gas in the sealing sleeve 1083 enters the transit pipe 1082 through the pressurization port 1086, the pressure in the transit pipe 1082 is increased, and therefore the injection efficiency of oil gas is effectively promoted, and when the first sliding rod 1084 slides towards the outside of the sealing sleeve 1083, gas outside the equipment box 107 is pumped into the sealing sleeve 1083 through the air return pipe 1087.

It should be noted that, check valves are respectively disposed in the air return pipe 1087 and the pressurization port 1086, the first oil inlet pipe 1081 is connected to an oil storage tank in the prior art, and lubricating oil is disposed in the oil storage tank.

Example 8: the use method of the milling assembly for manufacturing the water-saving valve comprises the following steps:

step one, connecting the output end of an external cooling liquid supply device into a connecting water pipe 301;

secondly, the cooling liquid in the connecting water pipe 301 flows into the cooling groove 201 above the spindle 2, and flows through the plurality of groups of cooling grooves 201 through the plurality of groups of communication grooves 202 to cool the outer surface of the spindle 2;

thirdly, the cooling liquid in the cooling tank 201 flows into the fourth water pipe 406 through the second water pipe 2073, the water inlet tank 402 and the third water pipe 403, so as to cool the cutter handle body 4;

step four, the cooling liquid in the fourth water pipe 406 enters the annular water tank 408 through two of the first water spray pipes 407, the joint of the cutter shank body 4 and the milling cutter body 5 is cooled, and the cooling liquid in the annular water tank 408 is sprayed onto the milling cutter body 5 through the first water spray pipes 407 to cool the outer surface of the milling cutter body 5;

step five, the cooling liquid in the fourth water pipe 406 enters the transit water cavity 504, the cooling liquid in the transit water cavity 504 is sprayed to the joint of the milling cutter body 5 and the water-saving valve by the spiral water spray pipes 505 to cool the cutter openings of the water-saving valve and the milling cutter body 5, meanwhile, the interior of the processing end of the milling cutter body 5 can be fully cooled, and the heat conduction quantity of the milling cutter body 5 to the cutter handle body 4 is reduced.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. Milling assembly for manufacturing water-saving valves, comprising: sealed axle sleeve (3) and main shaft (2), main shaft (2) seal is rotated in sealed axle sleeve (3), its characterized in that still includes:

a plurality of cooling grooves (201), wherein the plurality of cooling grooves (201) are arranged on the main shaft (2) at equal intervals;

communication grooves (202), wherein the communication grooves (202) are arranged between two adjacent cooling grooves (201) in a staggered manner;

a shank slot (204), the shank slot (204) being cut at one end of the spindle (2);

the tool handle comprises a tool handle body (4), wherein a locking head (401) is arranged on the tool handle body (4), and the locking head (401) is detachably connected in a tool handle groove (204);

the connecting water pipe (301) is cut on the sealing shaft sleeve (3), and the connecting water pipe (301) is communicated with the cooling groove (201) far away from the cutter handle groove (204);

the fourth water pipe (406), the fourth water pipe (406) is arranged in the knife handle body (4);

the water inlet groove (402) is formed in the cutter handle body (4), second water pipes (2073) communicated with the water inlet groove (402) are symmetrically arranged on the main shaft (2), and one ends, far away from the water inlet groove (402), of the second water pipes (2073) are communicated with the cooling groove (201) far away from one end, far away from the connecting water pipe (301);

the third water pipes (403) are symmetrically arranged in the cutter handle body (4), and two ends of each third water pipe (403) are respectively communicated with the water inlet groove (402) and the fourth water pipe (406);

the four first water spray pipes (407) are circumferentially arranged at one end, away from the main shaft (2), of the cutter handle body (4), and two of the first water spray pipes (407) are communicated with the fourth water spray pipe (406);

the annular water tank (408) is arranged at one end, close to the first water spray pipe (407), of the cutter handle body (4), and the annular water tank (408) is communicated with the first water spray pipe (407);

the milling cutter groove (405) is formed in one end, far away from the main shaft (2), of the cutter handle body (4);

the milling cutter comprises a milling cutter body (5), wherein the milling cutter body (5) is detachably connected in a milling cutter groove (405);

the fifth water pipe (502), the fifth water pipe (502) is arranged in the milling cutter body (5), and the fifth water pipe (502) is communicated with the fourth water pipe (406);

the transfer water cavity (504) is communicated with one end, far away from the fourth water pipe (406), of the fifth water pipe (502);

the plurality of chip grooves (503) are circumferentially arranged at one end, away from the cutter handle body (4), of the milling cutter body (5);

the milling cutter comprises a semi-spherical groove (501), wherein the semi-spherical groove (501) is cut at one end, far away from a cutter handle body (4), of a milling cutter body (5);

the milling cutter comprises a plurality of spiral water spraying pipes (505), wherein the spiral water spraying pipes (505) are circumferentially arranged in a milling cutter body (5), and the spiral water spraying pipes (505) are arranged between a hemispherical groove (501) and a transit water cavity (504).

2. The milling assembly for manufacturing the water-saving valve according to claim 1, wherein a cylindrical groove (203) is formed in one end, away from the handle body (4), of the main shaft (2), an air cylinder (2031) is fixedly connected into the cylindrical groove (203), a first sealing plate (2034) is arranged at the output end of the air cylinder (2031), locking grooves (206) are symmetrically formed in the main shaft (2), locking blocks (2061) matched with the locking heads (401) are hermetically and slidably arranged in the locking grooves (206), a first hydraulic oil pipe (2069) is arranged between one side, away from the locking heads (401), of the locking grooves (206) and the bottom of the cylindrical groove (203), clamping blocks (205) are symmetrically arranged at one end, close to the handle body (4), of the handle body (2), and clamping grooves (404) matched with the clamping blocks (205) are symmetrically formed in the handle body (4).

3. The milling assembly for manufacturing the water-saving valve according to claim 2, wherein a vent plate (2033) is fixedly connected to an output end of the cylinder (2031), the vent plate (2033) is arranged between the cylinder (2031) and the first sealing plate (2034), a second spring (2035) is fixedly connected between the vent plate (2033) and the first sealing plate (2034), and pressurizing pipes (2032) are symmetrically arranged between the cylindrical groove (203) and the cooling groove (201).

4. The milling assembly for manufacturing the water-saving valve according to claim 2, wherein a first cavity (2062) and a second cavity (2063) are arranged in the locking block (2061), a centrifugal slider (2064) is arranged between the first cavity (2062) and the second cavity (2063) in a sealing and sliding manner, two groups of third springs (2065) are fixedly connected between one end of the centrifugal slider (2064) in the first cavity (2062) and the first cavity (2062), a limiting sliding groove (2066) is formed in one end, close to the locking head (401), of the locking block (2061) in a drilling manner, a limiting slider (2067) is arranged in the limiting sliding groove (2066) in a sealing and sliding manner, and a connecting pipe (2068) is arranged between the bottom of the limiting sliding groove (2066) and the first cavity (2062).

5. The milling assembly for manufacturing the water-saving valve according to claim 4, wherein a locking sleeve (207) is fixedly connected to one end, away from the locking block (2061), of the locking groove (206), a locking slide rod (2071) fixedly connected with the locking block (2061) is arranged in the locking sleeve (207) in a sealing sliding mode, and a first water pipe (2072) is arranged between one end, away from the locking slide rod (2071), of the locking sleeve (207) and the second water pipe (2073).

6. The milling assembly for manufacturing the water-saving valve according to claim 1, wherein an expansion sleeve (4051) is arranged in the milling cutter groove (405), an expansion oil groove (4052) is arranged between the expansion sleeve (4051) and the cutter handle body (4), an oil cavity (4054) is formed in the cutter handle body (4), a threaded sliding plate (4055) is arranged in the oil cavity (4054) in a sealing and sliding mode, a threaded rod (4056) is rotatably connected to the threaded sliding plate (4055), the threaded rod (4056) is in threaded connection with the cutter handle body (4), a screwing head (4057) is fixedly connected to one end of the threaded rod (4056) outside the cutter handle body (4), and a second hydraulic oil pipe (4053) is arranged between one end of the oil cavity (4054) far away from the threaded rod (4056) and the expansion oil groove (4052).

7. The milling assembly for manufacturing the water-saving valve according to claim 6, wherein a first sliding groove (4061) communicated with a fourth water pipe (406) is formed in the tool holder body (4), a double-head sliding rod (4062) is arranged between the first sliding groove (4061) and the oil cavity (4054) in a sealing and sliding mode, and a fourth spring (4063) is arranged between one end, inside the first sliding groove (4061), of the double-head sliding rod (4062) and the first sliding groove (4061).

8. A milling machine, comprising: the milling assembly for manufacturing the water-saving valve comprises a milling machine body (1) and the milling assembly for manufacturing the water-saving valve, wherein an opening and closing door (101) is symmetrically arranged on one side of the milling machine body (1), a supporting arm (105) is fixedly connected to one side, far away from the opening and closing door (101), of the milling machine body (1), a first limiting groove (1051) is formed in one side, close to the milling machine body (1), of the supporting arm (105), a fixing arm (106) is arranged in the first limiting groove (1051) in a sliding manner, a lifting screw rod (1053) is rotatably arranged in the first limiting groove (1051), the lifting screw rod (1053) is in threaded connection with the fixing arm (106), a lifting motor (1052) is fixedly connected to the supporting arm (105), the output end of the lifting motor (1052) is fixedly connected with one end of the lifting screw rod (1053), a sealing shaft sleeve (3) is fixedly arranged on the fixing arm (106), a main motor (1061) is fixedly connected to the fixing arm (106), the output end of the main motor (1061) is fixedly connected with one end of a main shaft (2), a moving platform (103) is arranged in the moving platform (103), a movable platform (103) is arranged in the movable platform (103), a driving block (1031) is arranged on the movable platform 104), and a first driving block (103) is arranged on the movable platform (103), two there are first lead screw (1032) in first drive block (1031) female connection, first motor (1033) of fixedly connected with in support arm (105), the output and first lead screw (1032) fixed connection of first motor (1033), the one end that centre gripping platform (104) were kept away from to moving platform (103) slides and is provided with second drive block (1034), second drive block (1034) female connection has second lead screw (1035), one side fixedly connected with second motor (1036) of milling machine body (1), the output of second motor (1036) and the one end fixed connection of second lead screw (1035), the one end fixedly connected with first centre gripping piece (1041) and first fixed block (1043) that moving platform (103) were kept away from to centre gripping platform (104), slide and be provided with second centre gripping piece (1042) between first centre gripping piece (1041) and first fixed block (1043), rotate drive block (1044) on the second centre gripping piece (1042), drive block (1044) and first fixed block (1044) and first lead screw (1043) are connected with screw (1043), the symmetrical pole (1045) of first centre gripping pole (1045) and first lead screw (1045) sliding connection.

9. Milling machine according to claim 8, characterized in that an equipment box (107) is fixedly connected to the fixed arm (106), a high pressure water pump (1071) is fixedly connected to the inside of the equipment box (107), a first water inlet pipe (1072) is fixedly connected to the input end of the high pressure water pump (1071), and the output end of the high pressure water pump (1071) is communicated with the connecting water pipe (301).

10. A method of using a milling assembly for the manufacture of water saving valves according to claim 1, comprising the steps of:

step one, connecting the output end of an external cooling liquid supply device into a connecting water pipe (301);

secondly, cooling liquid in the connecting water pipe (301) flows into a cooling groove (201) above the main shaft (2), and flows through a plurality of groups of cooling grooves (201) through a plurality of groups of communication grooves (202) to cool the outer surface of the main shaft (2);

thirdly, cooling liquid in the cooling tank (201) flows into a fourth water pipe (406) through a second water pipe (2073), a water inlet tank (402) and a third water pipe (403), so that the temperature of the cutter handle body (4) is reduced;

step four, cooling liquid in the fourth water pipe (406) enters the annular water tank (408) through two first water spray pipes (407), the joint of the cutter handle body (4) and the milling cutter body (5) is cooled, and the cooling liquid in the annular water tank (408) is sprayed onto the milling cutter body (5) through the first water spray pipes (407) to cool the outer surface of the milling cutter body (5);

step five, cooling liquid in the fourth water pipe (406) enters a transfer water cavity (504), the cooling liquid in the transfer water cavity (504) is sprayed to the joint of the milling cutter body (5) and the water-saving valve by a plurality of spiral water spray pipes (505) to cool the cutter edge of the water-saving valve and the milling cutter body (5), meanwhile, the interior of the processing end of the milling cutter body (5) can be fully cooled, and the heat conduction quantity of the milling cutter body (5) to the cutter handle body (4) is reduced.