CN111331185A

CN111331185A - Milling cutter disc with blades capable of being replaced quickly

Info

Publication number: CN111331185A
Application number: CN202010286916.3A
Authority: CN
Inventors: 王宁
Original assignee: Dongyang Wenbin Electronic Technology Co ltd
Current assignee: Dongyang Wenbin Electronic Technology Co ltd
Priority date: 2020-04-13
Filing date: 2020-04-13
Publication date: 2020-06-26

Abstract

The invention discloses a milling cutter disc capable of rapidly replacing blades, which comprises a milling cutter disc, wherein a rotating cavity with a downward opening is arranged in the milling cutter disc, a liquid storage tank which is bilaterally symmetrical is fixedly arranged on the left inner wall and the right inner wall of the rotating cavity, a rotating disc is rotatably arranged in the rotating cavity, a power transmission cavity is arranged in the rotating disc, a spiral disc cavity is arranged on the inner bottom wall of the power transmission cavity, positioning sliding grooves which are bilaterally symmetrical and have an upward opening are arranged on the inner bottom wall of the spiral disc cavity, a pressing plate cavity which is bilaterally symmetrical is arranged on the inner bottom wall of the positioning sliding grooves, and a blade clamping; the automatic blade dismounting and clamping device is simple in structure and convenient and fast to operate, the function of quickly clamping the blades on the milling cutter disc is achieved by the cooperation of the pressing plate and the sliding plate, and the function of automatically dismounting the blades from the milling cutter disc and restoring the clamping state of the blades is achieved by the quick resetting of the pressing plate and the sliding plate through transmission cooperation, so that the blades on the milling cutter disc can be quickly replaced.

Description

Milling cutter disc with blades capable of being replaced quickly

Technical Field

The invention relates to the field of milling equipment, in particular to a milling cutter disc capable of rapidly replacing blades.

Background

Milling is a machining method in which a rotating multi-edged tool is used to cut the surface of a workpiece-machining object.

At the present stage, when a cutter disc for clamping a multi-edge cutter used for milling is used for clamping and replacing the cutter, the cutter on the milling cutter disc can be clamped only by performing the work of clamping and dismounting a fastening bolt, installing the cutter, reassembling the fastening bolt and the like on one cutter, so that time and labor are wasted.

Disclosure of Invention

The invention aims to solve the technical problem of providing a milling cutter disc with blades rapidly replaced, which realizes the function of rapidly clamping the blades on the milling cutter disc by utilizing the cooperation of a pressure plate and a sliding plate, and simultaneously realizes the function of automatically unloading the blades from the milling cutter disc and recovering the clamping state of the blades by utilizing the rapid resetting of the pressure plate and the sliding plate by utilizing the transmission cooperation, thereby rapidly replacing the blades on the milling cutter disc.

The milling cutter disc comprises a milling cutter disc, wherein a rotating cavity with a downward opening is arranged in the milling cutter disc, a liquid storage tank which is bilaterally symmetrical is fixedly arranged on the left inner wall and the right inner wall of the rotating cavity, a rotating disc is rotatably arranged in the rotating cavity, a power transmission cavity is arranged in the rotating disc, a spiral disc cavity is arranged on the inner bottom wall of the power transmission cavity, positioning sliding grooves which are bilaterally symmetrical and have an upward opening are arranged on the inner bottom wall of the spiral disc cavity, a pressing plate cavity which is bilaterally symmetrical is arranged on the inner bottom wall of the positioning sliding grooves, and a blade clamping groove is formed in the inner bottom wall of the;

a first motor is fixedly arranged in the cutter head, a first transmission shaft extending downwards is in power connection with the end face of the lower side of the first motor, the first transmission shaft extends into the rotating cavity and is connected with the top wall of the rotating cavity in a rotating matching manner, the part of the first transmission shaft extending into the rotating cavity is fixedly connected with the end face of the top of the rotating disc, a second transmission shaft extending upwards is rotatably connected with the top wall of the inner cavity of the spiral disc, a spiral disc is fixedly arranged on the second transmission shaft, spiral meshing teeth are fixedly arranged on the end face of the bottom of the spiral disc, a positioning block is arranged in the positioning sliding chute in a sliding manner, a first rack is fixedly arranged on the end face of the rear side of the positioning block on the right side, positioning block meshing teeth meshed with the spiral meshing teeth are fixedly arranged on the end face of the top of the positioning block, and a first pull rope is, a pressing plate is arranged in the pressing plate cavity in a sliding manner, a trapezoidal hook block is fixedly arranged on the end surface of the bottom of the pressing plate, a first return spring fixedly connected with the top wall in the pressure plate cavity is fixedly arranged on the top end surface of the pressure plate, a fixed rod sliding cavity with a forward opening is arranged on the inner wall of the rear side of the blade clamping groove, a hook block through hole communicated with the pressure plate cavity and matched with the trapezoidal hook block is arranged on the top wall in the fixed rod sliding cavity in a penetrating way, a trapezoidal sliding plate is arranged in the sliding cavity of the fixed rod in a sliding way, a blade fixed rod which can extend into the blade clamping groove is fixedly arranged on the end face of the front side of the trapezoidal sliding plate, a second return spring fixedly connected with the inner wall of the rear side of the fixed rod sliding cavity is fixedly arranged on the end surface of the rear side of the trapezoidal sliding plate, the end face of the rear side of the trapezoidal sliding plate is fixedly connected with the other end, far away from the positioning block, of the first pull rope.

Further, a second motor is fixedly arranged on the inner wall of the right side of the power transmission cavity, a spline shaft extending leftwards is in power connection with the end face of the left side of the second motor, a spline sleeve which is bilaterally symmetrical is in spline fit with the spline shaft, an annular shifting piece is fixedly arranged on the spline sleeve, a shifting block sliding groove with a backward opening is arranged on the inner wall of the front side of the power transmission cavity, a shifting block with a backward opening is arranged in the shifting block sliding groove in a sliding manner, the annular shifting piece is in rotating fit connection with the backward opening of the shifting block through a bearing, an electromagnetic spring fixedly connected with the inner wall of the right side of the shifting block sliding groove is fixedly arranged on the end face of the right side of the shifting block, a bayonet with a forward opening is arranged on the end face of the front side of the shifting block sliding groove, a fixture block sliding groove with a backward opening is arranged on the inner wall of the front side of the shifting block sliding groove, a fixture block is slidably, the end face of the front side of the clamping block is fixedly connected with a second pull rope, the spline shaft is rotatably connected with first bevel gears which are positioned between the two spline sleeves and are bilaterally symmetrical, and a part of the second transmission shaft extending into the power transmission cavity is fixedly provided with a second bevel gear which is meshed with the two first bevel gears.

Furthermore, a gear transmission cavity with a forward opening is formed in the inner wall of the rear side of the positioning chute on the left side, a gear transmission shaft is connected to the upper inner wall and the lower inner wall of the gear transmission cavity in a transmission mode, a transmission gear matched with the first rack and a winding wheel located on the lower side of the transmission gear are fixedly arranged on the gear transmission shaft, and the second pull rope is fixedly wound on the winding wheel and is far away from the other end of the clamping block.

Further, be equipped with the stock solution chamber in the liquid storage pot, it is equipped with the piston to slide in the stock solution chamber, the fixed second rack that is equipped with the front and back symmetry on the terminal surface of piston top, rotate on the inner wall about the stock solution chamber and be connected with the third transmission shaft that extends to the rotation chamber direction, fixed be equipped with on the third transmission shaft with second rack engaged with sector gear, be equipped with intercommunication stock solution chamber and the communicating coolant liquid filling pipeline of external coolant liquid filling equipment on the stock solution intracavity wall, link up on the stock solution intracavity diapire be equipped with external communicating liquid hole, fixed be equipped with bilateral symmetry on the milling cutter dish bottom terminal surface and with go out the communicating coolant liquid spraying hose in liquid hole.

Furthermore, an annular rack is fixedly arranged on the end face of the top of the rotating disc, and a third bevel gear meshed with the annular rack is fixedly arranged on the part of the third transmission shaft extending into the rotating cavity.

Furthermore, a first meshing tooth is fixedly arranged on the end face of one side, close to the first bevel gear, of the spline housing, and a second meshing tooth matched with the first meshing tooth is fixedly arranged on the end face of one side, close to the spline housing, of the first bevel gear.

The invention has the beneficial effects that: the automatic blade dismounting and clamping device is simple in structure and convenient and fast to operate, the function of quickly clamping the blades on the milling cutter disc is achieved by the cooperation of the pressing plate and the sliding plate, and the function of automatically dismounting the blades from the milling cutter disc and restoring the clamping state of the blades is achieved by the quick resetting of the pressing plate and the sliding plate through transmission cooperation, so that the blades on the milling cutter disc can be quickly replaced.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

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

FIG. 2 is a schematic structural diagram at A-A in FIG. 1 according to an embodiment of the present invention;

FIG. 3 is a schematic left side view of the left side of the reservoir of FIG. 1 in accordance with an embodiment of the present invention;

FIG. 4 is a schematic top view of the power transmission cavity of FIG. 1 according to an embodiment of the present invention;

FIG. 5 is a schematic top view of the positioning chute of FIG. 1 according to an embodiment of the present invention;

FIG. 6 is a schematic view of the thread structure at the spiral disk in FIG. 1 according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram at B-B in FIG. 5 according to an embodiment of the present invention.

Detailed Description

The invention will now be described in detail with reference to fig. 1-7, wherein for ease of description the orientations described below are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

Combine fig. 1-7 a milling cutter dish of quick replacement blade, including milling cutter dish 10, be equipped with the decurrent rotation chamber 35 of opening in the milling cutter dish 10, rotate chamber 35 left and right sides on the inner wall fixed liquid storage pot 11 that is equipped with bilateral symmetry, it is equipped with rolling disc 30 to rotate the rotation of chamber 35, be equipped with power transmission chamber 29 in the rolling disc 30, be equipped with spiral shell chamber 28 on the bottom wall in power transmission chamber 29, be equipped with bilateral symmetry and the ascending location spout 21 of opening in the bottom wall in spiral shell chamber 28, be equipped with bilateral symmetry's clamp plate chamber 36 in the location spout 21 bottom wall, it is equipped with blade clamping groove 22 to link up from top to bottom in the bottom wall in clamp plate chamber 36, the fixed first motor 34 that is equipped with in blade dish 10, power connection has downwardly extending's first transmission shaft 33 on the first motor 34 downside terminal surface, first transmission shaft 33 stretch into rotate in the chamber 35 and with rotate the roof normal running fit and be connected, the part of the first transmission shaft 33 extending into the rotating cavity 35 is fixedly connected with the top end face of the rotating disc 30, the top wall in the spiral disc cavity 28 is rotatably connected with a second transmission shaft 62 extending upwards, the second transmission shaft 62 is fixedly provided with a spiral disc 27, the bottom end face of the spiral disc 27 is fixedly provided with spiral meshing teeth 60, the positioning chute 21 is internally provided with a positioning block 20 in a sliding manner, the rear end face of the positioning block 20 on the right side is fixedly provided with a first rack 65, the top end face of the positioning block 20 is fixedly provided with positioning block meshing teeth 61 meshed with the spiral meshing teeth 60, the end face of the positioning block 20 far away from the center of the rotating disc 30 is fixedly connected with a first pull rope 26, the pressing plate cavity 36 is internally provided with a pressing plate 23 in a sliding manner, the bottom end face of the pressing plate 23 is fixedly provided with a trapezoidal hook block, the top end face of the pressing plate 23 is fixedly provided with a first return spring 24 fixedly connected with, a fixed rod sliding cavity 25 with a forward opening is formed in the inner wall of the rear side of the blade clamping groove 22, a hook block through hole 37 communicated with the pressing plate cavity 36 and matched with the trapezoidal hook block is penetratingly formed in the inner top wall of the fixed rod sliding cavity 25, a trapezoidal sliding plate 39 is slidably arranged in the fixed rod sliding cavity 25, a blade fixed rod 40 capable of extending into the blade clamping groove 22 is fixedly arranged on the end face of the front side of the trapezoidal sliding plate 39, a second reset spring 38 fixedly connected with the inner wall of the rear side of the fixed rod sliding cavity 25 is fixedly arranged on the end face of the rear side of the trapezoidal sliding plate 39, and the first pull rope 26 is fixedly connected to the other end, far away from the positioning block 20, of the trapezoidal sliding plate 39.

Beneficially, a second motor 41 is fixedly arranged on the inner wall of the right side of the power transmission cavity 29, a spline shaft 46 extending leftwards is dynamically connected to the end face of the left side of the second motor 41, a spline housing 43 which is bilaterally symmetrical is spline-fitted on the spline shaft 46, an annular shifting piece 42 is fixedly arranged on the spline housing 43, a shifting block sliding groove 54 with a backward opening is arranged on the inner wall of the front side of the power transmission cavity 29, a shifting block 52 with a backward opening is slidably arranged in the shifting block sliding groove 54, the annular shifting piece 42 is connected with the backward opening of the shifting block 52 in a rotationally-fitted manner through a bearing, an electromagnetic spring 53 fixedly connected with the inner wall of the right side of the shifting block sliding groove 54 is fixedly arranged on the end face of the right side of the shifting block 52, a bayonet 47 with a forward opening is arranged on the end face of the front side of the shifting block 52, a sliding groove 49 with a backward opening is arranged on the inner, a third return spring 50 fixedly connected with the inner wall of the front side of the fixture block sliding groove 49 is fixedly arranged on the end surface of the front side of the fixture block 48, a second pull rope 51 is fixedly connected with the end surface of the front side of the fixture block 48, the spline shaft 46 is rotatably connected with first bevel gears 44 which are positioned between the two spline sleeves 43 and are bilaterally symmetrical, and a second bevel gear 45 meshed with the two first bevel gears 44 is fixedly arranged on the part of the second transmission shaft 62 extending into the power transmission cavity 29.

Advantageously, a gear transmission cavity 57 with a forward opening is formed in the inner wall of the rear side of the left positioning chute 21, a gear transmission shaft 55 is connected to the upper and lower inner walls of the gear transmission cavity 57 in a transmission manner, a transmission gear 56 matched with the first rack 65 and a winding wheel 59 located on the lower side of the transmission gear 56 are fixedly arranged on the gear transmission shaft 55, and the other end of the second pull rope 51 far away from the fixture block 48 is fixedly wound on the winding wheel 59.

It is profitable, be equipped with stock solution chamber 12 in the liquid storage pot 11, it is equipped with piston 16 to slide in the stock solution chamber 12, the fixed second rack 13 that is equipped with front and back symmetry on the terminal surface of piston 16 top, rotate on the inner wall about the stock solution chamber 12 and be connected with the third transmission shaft 14 that extends to rotating chamber 35 direction, fixed being equipped with on the third transmission shaft 14 with second rack 13 engaged with sector gear 15 mutually, be equipped with intercommunication stock solution chamber 12 and the communicating coolant liquid filling pipeline 17 of external coolant liquid filling equipment on the inner wall of stock solution chamber 12, it is equipped with and goes out liquid hole 18 with external communicating to link up on the diapire in the stock solution chamber 12, milling cutter dish 10 fixed be equipped with bilateral symmetry on the bottom terminal surface and with go out the communicating coolant liquid spraying hose 19 in liquid hole 18.

Advantageously, an annular rack 31 is fixedly arranged on the top end surface of the rotating disc 30, and a third bevel gear 32 meshed with the annular rack 31 is fixedly arranged on the part of the third transmission shaft 14 extending into the rotating cavity 35.

Advantageously, a first engaging tooth is fixedly arranged on the end surface of the spline housing 43 close to one side of the first bevel gear 44, and a second engaging tooth matched with the first engaging tooth is fixedly arranged on the end surface of the first bevel gear 44 close to one side of the spline housing 43.

In an initial state, the piston 16 on the left side is located at an upper limit position, the piston 16 on the right side is located at a lower limit position, the space of the liquid storage cavity 12 located below the piston 16 is filled with cooling liquid, the dial block 52 is located at the left limit position under the action of the electromagnetic spring 53, the latch block 48 is extended into the bayonet 47 under the action of the third return spring 50 to abut against the inner wall on the right side of the bayonet 47, so that the first engaging tooth on the right side is engaged with the second engaging tooth on the right side, the positioning block 20 is located at an outer limit position away from the center of the rotating disc 30, so that the first rack 65 is disengaged from the transmission gear 56, the pressing plate 23 is located at the lower limit position under the action of the first return spring 24, so that the trapezoidal hook block on the pressing plate 23 extends into the fixed rod sliding cavity 25 through the hook block through hole 37 to abut against the front end face of the trapezoidal sliding plate 39, thereby causing the trapezoidal sliding plate 39 and the blade-fixing lever 40 to be retracted within the fixing-lever sliding chamber 25.

When the blade is clamped, the blade is pressed upwards into the blade clamping groove 22, the blade upwards extrudes the pressing plate 23, so that the trapezoidal hook block on the pressing plate 23 upwards displaces, the trapezoidal hook block on the pressing plate 23 upwards displaces and is separated from the trapezoidal sliding plate 39 to be abutted, so that the trapezoidal sliding plate 39 pushes the blade fixing rod 40 to move forwards under the action of the second return spring 38, the blade fixing rod extends into the blade clamping groove 22 and penetrates through a clamping hole on the blade to be clamped, and the clamping of the blade is finished; during milling operation, the first motor 34 is started, the first motor 34 drives the rotating disc 30 to rotate through the first transmission shaft 33, so that the blade clamped in the blade clamping groove 22 is driven to rotate to complete the milling operation, the rotating disc 30 rotates to drive the annular rack 31 to rotate, so that the third bevel gear 32 meshed with the annular rack 31 is driven to rotate, the third bevel gear 32 rotates to drive the sector gear 15 coaxial with the third bevel gear to rotate, so that the meshed second rack 13 is driven to periodically move up and down, the second rack 13 periodically moves up and down to drive the piston 16 to periodically move up and down, so that cooling liquid is periodically extruded, the cooling liquid is sprayed outwards through the liquid outlet 18 and the cooling liquid spraying hose 19, and the cooling effect during milling is completed; when the blade is replaced, the second motor 41 is started, the electromagnetic spring 53 is electrified, the second motor 41 drives the spline shaft 46 and the spline housing 43 to rotate, so that the spline housing 43 rotates to drive the right first bevel gear 44 engaged with the spline housing to rotate, the right first bevel gear 44 rotates to drive the second bevel gear 45 engaged with the spline housing to rotate forwardly, so as to drive the spiral disk 27 coaxial with the second bevel gear 45 to rotate forwardly, the spiral disk 27 rotates forwardly to drive the positioning block 20 engaged with the spiral disk to displace towards the circle center of the rotating disk 30, the first pull rope 26 is pulled tightly, so as to drive the trapezoidal sliding plate 39 and the blade fixing rod 40 to displace backwards, so that the blade fixing rod 40 returns to the initial position and stretches back into the fixing rod sliding cavity 25, clamping of the blade is finished, so that the pressing plate 23 returns to the initial position under the action of the first return spring 24, and the right positioning block 20 displaces towards the, the first rack 65 is engaged with the transmission gear 56, so that the first rack 65 drives the transmission gear 56 to rotate, the transmission gear 56 rotates to drive the winding wheel 59 coaxial with the transmission gear to rotate, the second pull rope 51 is tightened, the fixture block 48 moves forward and is separated from the bayonet 47 to be abutted against, the shifting block 52 moves rightward under the action of the electromagnetic spring 53, the first meshing tooth on the right side is separated from the second meshing tooth on the right side, the first meshing tooth on the left side is meshed with the second meshing tooth on the left side, the second motor 41 drives the spline housing 43 to rotate, the spline housing 43 drives the first bevel gear 44 on the left side meshed with the spline housing to rotate, the first bevel gear 44 on the left side rotates to drive the second bevel gear 45 meshed with the first bevel gear to rotate reversely, so that the spiral disc 27 reversely rotates to drive the positioning block 20 meshed with the first bevel gear to displace in the direction away from the center of the rotating disc 30 to return to the, completing the operation of automatically detaching the blade, turning off the second motor 41, powering off the electromagnetic spring 53, and enabling the shifting block 52 to move leftwards under the action of the electromagnetic spring 53 to return to the initial state, so that the clamping block 48 extends into the bayonet 47 under the action of the third return spring 50 to return to the initial state; after the blade is dismounted, the blade can be quickly replaced by repeatedly clamping the blade.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a facing cutter of quick replacement blade, includes facing cutter, its characterized in that: a rotating cavity with a downward opening is formed in the milling cutter disc, bilaterally symmetrical liquid storage tanks are fixedly arranged on the left inner wall and the right inner wall of the rotating cavity, a rotating disc is rotatably arranged in the rotating cavity, a power transmission cavity is formed in the rotating disc, a spiral disc cavity is formed in the inner bottom wall of the power transmission cavity, positioning sliding grooves which are bilaterally symmetrical and have an upward opening are formed in the inner bottom wall of the spiral disc cavity, bilaterally symmetrical pressing plate cavities are formed in the inner bottom wall of each positioning sliding groove, and blade clamping grooves are formed in the upper portion and the lower portion of the; a first motor is fixedly arranged in the cutter head, a first transmission shaft extending downwards is in power connection with the end face of the lower side of the first motor, the first transmission shaft extends into the rotating cavity and is connected with the top wall of the rotating cavity in a rotating matching manner, the part of the first transmission shaft extending into the rotating cavity is fixedly connected with the end face of the top of the rotating disc, a second transmission shaft extending upwards is rotatably connected with the top wall of the inner cavity of the spiral disc, a spiral disc is fixedly arranged on the second transmission shaft, spiral meshing teeth are fixedly arranged on the end face of the bottom of the spiral disc, a positioning block is arranged in the positioning sliding chute in a sliding manner, a first rack is fixedly arranged on the end face of the rear side of the positioning block on the right side, positioning block meshing teeth meshed with the spiral meshing teeth are fixedly arranged on the end face of the top of the positioning block, and a first pull rope is, a pressing plate is arranged in the pressing plate cavity in a sliding manner, a trapezoidal hook block is fixedly arranged on the end surface of the bottom of the pressing plate, a first return spring fixedly connected with the top wall in the pressure plate cavity is fixedly arranged on the top end surface of the pressure plate, a fixed rod sliding cavity with a forward opening is arranged on the inner wall of the rear side of the blade clamping groove, a hook block through hole communicated with the pressure plate cavity and matched with the trapezoidal hook block is arranged on the top wall in the fixed rod sliding cavity in a penetrating way, a trapezoidal sliding plate is arranged in the sliding cavity of the fixed rod in a sliding way, a blade fixed rod which can extend into the blade clamping groove is fixedly arranged on the end face of the front side of the trapezoidal sliding plate, a second return spring fixedly connected with the inner wall of the rear side of the fixed rod sliding cavity is fixedly arranged on the end surface of the rear side of the trapezoidal sliding plate, the end face of the rear side of the trapezoidal sliding plate is fixedly connected with the other end, far away from the positioning block, of the first pull rope.

2. The quick-change insert facing cutter of claim 1, wherein: a second motor is fixedly arranged on the inner wall of the right side of the power transmission cavity, a spline shaft extending leftwards is dynamically connected to the end face of the left side of the second motor, a spline sleeve which is bilaterally symmetrical is in spline fit on the spline shaft, an annular shifting block is fixedly arranged on the spline sleeve, a shifting block chute with a backward opening is arranged on the inner wall of the front side of the power transmission cavity, a shifting block with a backward opening is arranged in the shifting block chute in a sliding manner, the annular shifting block and the backward opening of the shifting block are connected in a rotating fit manner through a bearing, an electromagnetic spring fixedly connected with the inner wall of the right side of the shifting block chute is fixedly arranged on the end face of the right side of the shifting block, a bayonet with a forward opening is arranged on the end face of the front side of the shifting block chute, a fixture block chute with a backward opening is arranged on the inner wall of the front side of the shifting block chute, a fixture block is slidably arranged in the, the end face of the front side of the clamping block is fixedly connected with a second pull rope, the spline shaft is rotatably connected with first bevel gears which are positioned between the two spline sleeves and are bilaterally symmetrical, and a part of the second transmission shaft extending into the power transmission cavity is fixedly provided with a second bevel gear which is meshed with the two first bevel gears.

3. The quick-change insert facing cutter of claim 1, wherein: the left side is equipped with the forward gear drive chamber of opening on the positioning chute rear side inner wall, the transmission is connected with gear drive shaft on the upper and lower inner wall in gear drive chamber, gear drive shaft is last fixed be equipped with first rack matched with drive gear and be located the winding wheel of drive gear downside, it has to fix the winding on the winding wheel the other end that the fixture block was kept away from to the second stay cord.

4. The quick-change insert facing cutter of claim 1, wherein: be equipped with the stock solution chamber in the liquid storage pot, it is equipped with the piston to slide in the stock solution chamber, the second rack of symmetry around fixed being equipped with on the piston top end face, rotate on the inner wall about the stock solution chamber and be connected with the third transmission shaft that extends to the chamber direction of rotating, fixed being equipped with on the third transmission shaft with second rack engaged with sector gear, be equipped with the communicating coolant liquid filling pipeline of intercommunication stock solution chamber and external coolant liquid filling equipment on the stock solution intracavity wall, link up on the stock solution intracavity diapire and be equipped with the communicating liquid hole of going out in the external world, fixed be equipped with bilateral symmetry on the milling cutter dish bottom end face and with go out the communicating coolant liquid spraying hose in liquid hole.

5. The quick-change insert facing cutter of claim 1, wherein: an annular rack is fixedly arranged on the end face of the top of the rotating disc, and a third bevel gear meshed with the annular rack is fixedly arranged on the part of the third transmission shaft extending into the rotating cavity.

6. The quick-change insert facing cutter of claim 2, wherein: the end face of one side, close to the first bevel gear, of the spline housing is fixedly provided with first meshing teeth, and the end face of one side, close to the spline housing, of the first bevel gear is fixedly provided with second meshing teeth matched with the first meshing teeth.