CN210766304U - Milling machine convenient to replace cutter - Google Patents

Abstract

The utility model relates to a milling machine convenient for replacing cutters, a rotating shaft is rotatably arranged on a frame, rotary tables are in a circular plate-shaped structure, two rotary tables are both rotatably arranged on the rotating shaft, a plurality of chutes are arranged on the turntable at equal angles, the milling cutter is provided with a plurality of chutes, two ends of the milling cutter are respectively arranged in a plurality of groups of corresponding chutes, the end part of the milling cutter can slide in the chutes, a plurality of limiting blocks are arranged, the limiting blocks can be arranged in the chutes, the rotating top parts are respectively rotatably arranged at two ends of the rotating shaft, the rotating top parts comprise a plurality of ejector rods which are distributed at equal angles, the ejector rods can push the milling cutter to the end part of the milling cutter along the direction of the radius of the turntable, two limiting parts are arranged, and the two limiting parts are respectively, when the ejector pin promoted a plurality of milling cutter simultaneously, the output of locating part can be inserted on the carousel, and the stopper is located the spout and fixes the milling cutter tip between ejector pin and stopper. The utility model has the characteristics of convenient, the cutter of quick replacement wearing and tearing, be difficult for dragging construction efficiency slowly.

Description

Milling machine convenient to replace cutter

Technical Field

The utility model relates to a road surface construction equipment, in particular to milling machine convenient to replacement cutter.

Background

The milling machine is one of the main machines of pavement maintenance construction machinery, is mainly used for excavating and renovating an asphalt concrete surface layer, and can also be used for removing the defects of pavement upheaval, oil wave, reticulate pattern, rut and the like.

At present, the milling machine includes frame, carousel and milling cutter, and the carousel is provided with two, and the carousel is the disc-shaped structure, and two carousels correspond to be fixed in the frame, and milling cutter is provided with a plurality ofly, and a plurality of milling cutter use the centre of a circle of carousel as the center evenly to be installed between two carousels, and the both ends of every milling cutter are fixed respectively on two carousels, and the length direction of milling cutter is perpendicular to each other with the plane at two carousels place respectively.

The above prior art solutions have the following drawbacks: milling machine mills the back to asphalt concrete ground for a long time, milling cutter wearing and tearing are comparatively serious, mill the back again to next section road surface when milling the road surface completion for the last time, when the hardness on next section road surface is great relatively last section road surface, the milling machine of wearing and tearing can not accomplish and mill the work, need change the cutter of wearing and tearing this moment, because milling cutter all fixes on the carousel, so change the cutter and can occupy the longer time, and then lead to dragging the efficiency of constructing the road surface slowly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a milling machine convenient to replacement cutter, it has the cutter of convenient, quick replacement wearing and tearing, is difficult for dragging the characteristics of efficiency of construction slowly.

The above object of the present invention can be achieved by the following technical solutions: a milling machine convenient for replacing cutters comprises a machine frame, a rotating shaft, two rotating discs and milling cutters, wherein the rotating shaft is rotatably installed on the machine frame, the two rotating discs are of a circular plate-shaped structure, the two rotating discs are rotatably arranged on the rotating shaft, the rotating shaft penetrates through the circle centers of the two rotating discs respectively, a plurality of sliding grooves are formed in the rotating discs at equal angles, the circle centers formed by the circular distribution and the annular distribution of the plurality of sliding grooves are coincided with the circular shape of the rotating discs, the milling cutters are provided with a plurality of milling cutters, two ends of the milling cutters are installed in a plurality of groups of corresponding sliding grooves respectively, the end parts of the milling cutters can slide in the sliding grooves along the radius direction of the rotating discs, the milling machine further comprises limiting blocks, rotating top pieces and limiting pieces, the limiting blocks are provided with a plurality of blocks which can be installed in the sliding grooves, the rotating top pieces are provided, the ejector pin can promote milling cutter's tip along carousel radius place direction, and the locating part is provided with two, and two locating parts are fixed respectively on two rotatory tops, promotes half milling cutter when the ejector pin simultaneously, and the output of locating part can be inserted on the carousel, and the stopper is located the spout and fixes milling cutter tip between ejector pin and stopper.

Through adopting the above-mentioned technical scheme, during the use, take out whole stopper and take out the output of locating part from the carousel in all spouts, then rotate rotatory ejecting, the milling cutter of wearing and tearing is close to the slip of carousel border department and steps down the ejector pin to the spout, when the ejector pin is aimed at the tip of other half milling cutter simultaneously, when making the tip butt of milling cutter tip and ejector pin, install the stopper again in the spout and deviate from one side of ejector pin with the milling cutter tip, and then fix milling cutter, and simultaneously, the stopper can be with the one end of the tip laminating spout of the milling cutter of wearing and tearing, it is convenient, replace milling cutter fast, can not occupy more time of changing milling cutter, be difficult for dragging slow efficiency of construction.

The utility model discloses further set up to: the jack the same with inserted bar quantity has evenly been seted up on the carousel, the locating part includes box body, apron, baffle, second spring and inserted bar, the box body is fixed on the push rod, and the one end of box body is open end and the other end is the blind end, the open end department at the box body is fixed to the apron, the baffle sets up in the box body, the spring is compression state setting in the box body and its both ends respectively with apron and baffle butt, the inserted bar pierce through blind end, baffle and the apron of box body in proper order and with the baffle rigid coupling, the one end that the inserted bar pierces through the baffle can be inserted in the jack.

By adopting the technical scheme, the compressed spring can push the baffle plate all the time, so that the insertion rod can be stably inserted into the insertion hole; when needs replacement cutter, the one end that the pulling inserted bar pierces through the apron for the inserted bar breaks away from the jack and then can contact spacing to the rotation top piece, simple structure, stability, convenient to use.

The utility model discloses further set up to: the clamping block is fixedly arranged on the inserted bar and located in the box body, a through hole is formed in the cover plate, and the clamping block can pass through the through hole.

Through adopting above-mentioned technical scheme, the staff takes out the inserted bar from jack and fixture block through-hole back, and rotatory inserted bar makes fixture block and through-hole take place the dislocation, loosens the inserted bar back once more, and the fixture block butt is on the apron and the inserted bar can not be inserted once more in the jack, and then the staff just can use both hands to rotate the rotation top piece, uses both hands comparatively laborsaving, makes things convenient for the staff to replace milling cutter.

The utility model discloses further set up to: two limiting rings are fixedly mounted on the rotating shaft, and the two limiting rings and the two turntables clamp the two rotating ejection pieces between the two limiting rings and the two turntables respectively.

Through adopting above-mentioned technical scheme for the length direction that rotatory ejecting can not follow the pivot in the pivot takes place to remove, and then makes the locating part can carry on spacingly to rotatory ejecting more steadily, simple structure, and is more reliable during the use.

The utility model discloses further set up to: still including sliding chamber, first spring, spacing post and pit, on two inner walls that the spout is relative, two liang of correspondences have been seted up to the notch orientation correspondence of perpendicular to spout the chamber of sliding, first spring sets up at its inside and its one end fixed setting in the inside in chamber of sliding along the length direction in chamber of sliding, the one end of spacing post and the other end fixed connection of first spring and its other end are located the chamber outside of sliding, and spacing post is located the one end outside the chamber of sliding and sets up to the ball-type terminal surface, the pit is seted up on the both sides of carrying on the back on the body on the stopper, and two pits can correspond a set of spacing post and spacing post simultaneously and can insert in the pit.

Through adopting above-mentioned technical scheme, correspond the pit of stopper and a set of spacing post and press the stopper to the spout is interior, under the effect of spacing post ball-type terminal surface, the stopper is convenient for extrude spacing post to the intracavity that slides for the tip of spacing post is located the pit, and then carries on spacingly to the stopper, and under the vibrations on milling machine mills the road surface, the stopper is difficult for breaking away from the spout, fixes milling cutter more reliably.

The utility model discloses further set up to: the one end that the spout is close to the carousel centre of a circle sets up to the inclined plane, one side that milling cutter tip and the one end on spout inclined plane can laminate sets up to the inclined plane the same with the spout, the tip of ejector pin is provided with the inclined plane, and the orientation on the inclined plane of ejector pin tip sets up with the orientation on the inclined plane of spout relatively.

Through adopting above-mentioned technical scheme, the inclined plane of milling cutter tip can laminate completely with the inclined plane of spout, when needs replacement milling cutter, only need two staff, two staff at first take out the stopper respectively, then the output of locating part is taken out to one hand, the rotatory ejecting member is rotated to the other hand, the ejector pin tip is under the effect on inclined plane, can make it be close to the carousel edge to the spout and be close to with other milling cutter under the condition that need not stimulate in advance, and then also can replace milling cutter under the condition that only needs two staff, effectively simplify the operation process of replacement milling cutter, the reduction occupies unnecessary staff, the staff of being convenient for uses.

The utility model discloses further set up to: and polishing the edge angle at the intersection of the inclined plane and the side surface of the end part of the ejector rod to enable the edge angle to be in circular arc transition.

Through adopting above-mentioned technical scheme, the circular arc transition can reduce ejector pin and milling cutter tip butt and relative slip in-process and produce sharp-pointed and harsh noise, and simultaneously, the circular arc transition can reduce the condition emergence of work fish tail hand when the operation.

To sum up, the utility model discloses following beneficial effect has:

1. by arranging the limiting block, the rotating top piece and the limiting piece, the ejector rod is simultaneously aligned with the end part of the other half of the milling cutter, so that the end part of the milling cutter is abutted against the end part of the ejector rod, the limiting block is installed in the chute and is away from one side of the ejector rod with the end part of the milling cutter, and then the milling cutter is fixed, the end part of the worn milling cutter can be attached to one end of the chute by the limiting block, the milling cutter can be conveniently and quickly replaced, more time for replacing the milling cutter is not occupied, and the construction efficiency;

2. the rotary jacking piece can be limited by arranging the jack, the box body, the cover plate, the baffle plate, the second spring and the inserted rod, and the rotary jacking piece is simple and stable in structure and convenient to use;

3. through setting up fixture block and through-hole, the fixture block passes through the through-hole butt on the apron, and the staff just can use both hands to rotate the rotation top member, uses both hands comparatively laborsaving, makes things convenient for the staff to replace milling cutter.

Drawings

Fig. 1 is a schematic illustration of a milling machine that facilitates cutter replacement;

FIG. 2 is a schematic view showing a protruded structure of the rotary shaft, the rotary table, the milling cutter, the stopper, the rotary top member and the stopper;

fig. 3 is a schematic sectional structure diagram of a matching structure of a limiting block and a turntable and a limiting block.

In the figure, 1, a frame; 2. a rotating shaft; 21. a limiting ring; 3. a turntable; 31. a chute; 32. a sliding cavity; 33. a first spring; 34. a limiting column; 4. milling cutters; 5. a limiting block; 51. a pit; 6. rotating the top piece; 61. a top rod; 7. a limiting member; 71. a box body; 72. a cover plate; 73. a baffle plate; 74. a second spring; 75. inserting a rod; 76. a clamping block; 8. a housing; 9. a motor; 10. and a chain.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Examples

Referring to fig. 1 and 2, the utility model discloses a milling machine convenient to replacement cutter, including frame 1, pivot 2, carousel 3, milling cutter 4, stopper 5, rotatory top member 6 and locating part 7.

The rotating shaft 2 is rotatably installed on the frame 1, two rotating discs 3 are arranged, each rotating disc 3 is of a circular plate-shaped structure, the two rotating discs 3 are rotatably arranged on the rotating shaft 2, the rotating shaft 2 respectively penetrates through the circle centers of the two rotating discs 3, six sliding grooves 31 are formed in the positions, close to the edges of the rotating discs 3, of the rotating discs 3 at equal angles, the circle centers formed by the six sliding grooves 31 which are distributed circularly and distributed annularly are superposed with the circle of the rotating disc 3, six milling cutters 4 are arranged, two ends of the six milling cutters 4 are respectively installed in six groups of corresponding sliding grooves 31, the end parts of the milling cutters 4 can slide in the direction of the radius of the rotating discs 3 in the sliding grooves 31, a plurality of limiting blocks 5 are arranged, the limiting blocks 5 can be installed in the sliding grooves 31, two rotating ejection parts 6 are respectively and rotatably installed at two ends of the rotating shaft 2, each rotating ejection part 6 comprises three ejector rods 61, the locating part 7 is provided with two, and two locating parts 7 are fixed respectively on two rotatory tops 6, and when three milling cutter 4 was pushed up simultaneously to ejector pin 61, the output of locating part 7 can be inserted on carousel 3, and stopper 5 is located spout 31 and fixes milling cutter 4 end fixing between ejector pin 61 and stopper 5.

When the milling cutter is used, the end part of the milling cutter 4 which is not pushed by the mandril 61 is limited by the limiting block 5 and is positioned at one end of the sliding chute 31 close to the circle center of the turntable 3, when the milling cutter 4 can not effectively mill the next section of road surface after milling the previous section of road surface, all the limiting blocks 5 are taken out from all the sliding chutes 31 and the output end of the limiting block 7 is drawn out from the turntable 3, then the rotating jacking piece 6 is rotated, the worn milling cutter 4 slides towards the edge of the sliding chute 31 close to the turntable 3 to abdicate the mandril 61, when the three mandrills 61 simultaneously aim at the end parts of the other three milling cutters 4, the end part of the milling cutter 4 is butted against the end part of the mandril 61, then the limiting block 5 is arranged in the sliding chute 31 and is far away from one side of the mandril 61 with the end part of the milling cutter 4, and then the milling cutter 4 is fixed, the milling cutter 4 is conveniently and quickly replaced, the time for replacing the milling cutter 4 is not occupied, and the slow dragging construction efficiency is not easy.

Referring to fig. 2, two limit rings 21 are fixedly mounted on the rotating shaft 2, and the two limit rings 21 respectively clamp the two rotating top parts 6 with the two rotating discs 3, so that the rotating top parts 6 cannot move along the length direction of the rotating shaft 2 on the rotating shaft 2, and further the limiting parts 7 can limit the rotating top parts 6 more stably, and the structure is simple and more reliable in use.

Referring to fig. 3, during the in-service use, when the milling machine mills the road surface, can produce comparatively strong vibrations on the milling machine body, vibrations can make and take place to remove in the spacing, and after long-time the use, the condition emergence that breaks away from spout 31 can appear in stopper 5, is provided with the chamber of sliding, first spring 33, spacing post 34 and pit 51 for this reason.

On two inner walls that spout 31 is relative, the notch orientation of perpendicular to spout 31 corresponds sets up two liang of corresponding chambeies that slide, first spring 33 has a plurality ofly, first spring 33 sets up in its inside and its one end fixed setting in the inside in chamber that slides along the length direction in chamber that slides, spacing post 34 is provided with a plurality ofly, the one end of spacing post 34 and first spring 33's the other end fixed connection and its other end are located the chamber outside that slides, spacing post 34 is located the outer one end in chamber that slides and sets up to the ball-type terminal surface, pit 51 is seted up on stopper 5 the both sides of carrying on the back of the body mutually, two pits 51 can correspond a set of spacing post 34 and spacing post 34 simultaneously and can insert in pit 51.

When the limiting block 5 is installed in the sliding groove 31, the pits 51 of the limiting block 5 correspond to a group of limiting posts 34 and the limiting block 5 is pressed into the sliding groove 31, under the action of the spherical end surfaces of the limiting posts 34, the limiting block 5 is convenient for extruding the limiting posts 34 into the sliding cavity, meanwhile, the limiting posts 34 compress the first springs 33, after the end parts of the two limiting posts 34 correspond to the two pits 51, the compressed first springs 33 push the limiting posts 34 outwards towards the sliding cavity, so that the end parts of the limiting posts 34 are positioned in the pits 51, the limiting block 5 is limited, and under the vibration of the milling machine for milling the road surface, the limiting block 5 is not easy to separate from the sliding groove 31, and the milling cutter 4 is more reliably fixed; when the limiting block 5 needs to be taken out, the limiting block 5 is knocked with force by using a tool, such as a hammer, and the like, so that the limiting block 5 can be separated from the sliding groove 31.

Referring to fig. 2, in actual use, when the milling cutter 4 needs to be replaced, due to the gravity of the milling cutter 4, when the ejector rod 61 abuts against another milling cutter 4, at least four workers need to operate simultaneously, wherein two workers simultaneously pull the other three milling cutters 4 to approach to the edge of the rotary table 3, the other two workers respectively use one hand to pull the output end of the limiting part 7, the other hand rotates the rotating ejector 6, more manpower is occupied, meanwhile, the milling cutter 4 is inconvenient to replace, and therefore the sliding chute 31, the end part of the milling cutter 4 and the ejector rod 61 are improved as follows.

The end, close to the center of the circle of the turntable 3, of the sliding groove 31 is set to be an inclined surface, one side, capable of being attached to one end of the inclined surface of the sliding groove 31, of the end portion of the milling cutter 4 is set to be an inclined surface identical to that of the sliding groove 31, the end portion of the ejector rod 61 is provided with the inclined surface, and the orientation of the inclined surface of the end portion of the ejector rod 61 is opposite to that of the inclined.

During the use, the inclined plane of 4 tip of milling cutter can laminate completely with the inclined plane of spout 31, when needs replacement milling cutter 4, only need two staff, two staff at first take out stopper 5 respectively, then the output of locating part 7 is taken out to one hand, rotatory ejecting 6 is rotated to another hand, ejector pin 61 tip is under the effect on inclined plane, can make it be close to 3 edges of carousel to spout 31 near with other milling cutter 4 under the condition that need not stimulate in advance, and then also can replace milling cutter 4 under the condition that only needs two staff, effectively simplify the operation process of replacement milling cutter 4, reduce and occupy unnecessary staff, the staff of being convenient for uses.

Preferably, the bevel of the inclined plane of ejector pin 61 tip and the edges and corners of side intersection are polished and are made it set up to the circular arc transition, during the use, can reduce ejector pin 61 and 4 tip butts of milling cutter and the relative slip in-process produces sharp-pointed harsh noise, and simultaneously, the circular arc transition can reduce the condition emergence of work fish tail hand when the operation.

Referring to fig. 3, six insertion holes are uniformly formed in the turntable 3, the limiting member 7 includes a box body 71, a cover plate 72, a baffle plate 73, a second spring 74 and an insertion rod 75, the box body 71 is fixed on the push rod, one end of the box body 71 is an open end, the other end of the box body 71 is a closed end, the cover plate 72 is fixed at the open end of the box body 71, the baffle plate 73 is arranged in the box body 71, the spring is arranged in the box body 71 in a compression state, two ends of the spring are respectively abutted to the cover plate 72 and the baffle plate 73, the insertion rod 75 penetrates through the closed end of the box body 71 in sequence, the baffle plate 73 is fixedly connected with the cover plate 72.

When the plug-in pin 75 is used, the compressed spring can push the baffle plate 73 all the time, so that the plug-in pin 75 can be stably inserted into the plug hole; when the cutter needs to be replaced, the insertion rod 75 is pulled to penetrate through one end of the cover plate 72, so that the insertion rod 75 is separated from the insertion hole and can be contacted with the limit of the rotating top piece 6, and the cutter replacing device is simple and stable in structure and convenient to use.

Referring to fig. 3, preferably, in order to further facilitate the replacement of the cutter by the worker, a fixture block 76 is fixedly disposed on the insertion rod 75, the fixture block 76 is located in the box body 71, a through hole is formed in the cover plate 72, and the fixture block 76 can pass through the through hole, when the milling cutter is used, the worker pulls the insertion rod 75 out of the insertion hole, and after the fixture block 76 passes through the through hole, the fixture block 76 and the through hole are dislocated by rotating the insertion rod 75, and after the insertion rod 75 is loosened again, the fixture block 76 abuts against the cover plate 72, and the insertion rod 75 cannot be inserted into the insertion hole again, so that the worker can use both hands to rotate the rotating jacking member 6, and the milling cutter replacement by.

Preferably, the insertion rod 75 is provided in a round rod-shaped structure, and the insertion rod 75 of the round rod-shaped knot is convenient to rotate while keeping the position matching with the position of the through hole penetrating the position of the cover plate 72.

Referring to fig. 1, the milling machine convenient for replacing the cutter further comprises a machine shell 8, a motor 9 and a chain 10, wherein the machine shell 8 is fixedly installed on the machine frame 1, the motor 9 is fixedly installed on the upper portion of the machine shell 8, and the chain 10 is wound on an output shaft of the motor 9 and one end of the rotating shaft 2.

During the use, motor 9 drives pivot 2 through chain 10 and rotates and then makes milling cutter 4 mill the road surface, and casing 8 can effectively block the road surface fragment that splashes when milling the road surface, protects motor 9 and staff, and the staff of being convenient for uses.

The embodiment of this embodiment is the utility model discloses preferred embodiment is not according to this restriction the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (7)

1. The utility model provides a milling machine convenient to replacement cutter, which comprises a frame (1), pivot (2), carousel (3) and milling cutter (4), pivot (2) rotate and install in frame (1), carousel (3) are provided with two, carousel (3) are circular platelike structure, two carousel (3) all rotate the centre of a circle that sets up in pivot (2) and pivot (2) pierce through two carousel (3) respectively, equal angle on carousel (3) is seted up six spout (31), six spout (31) are the circular coincidence of the centre of a circle that circular distribution and annular distribution formed and carousel (3), milling cutter (4) are provided with a plurality ofly, install respectively in spout (31) that the multiunit corresponds at the both ends of a plurality of milling cutter (4), the tip of milling cutter (4) can slide along carousel (3) radius place direction in spout (31), its characterized in that: the milling cutter is characterized by further comprising a plurality of limiting blocks (5), two rotating ejection pieces (6) and two limiting pieces (7), the limiting blocks (5) can be installed in the sliding groove (31), the two rotating ejection pieces (6) are respectively and rotatably arranged at two ends of the rotating shaft (2), each rotating ejection piece (6) comprises two ejector rods (61) which are half of the number of the milling cutters (4) and are distributed at equal angles, the end portions of the milling cutters (4) can be pushed by the aid of the ejector rods (61) along the direction of the radius of the turntable (3), the two limiting pieces (7) are arranged, the two limiting pieces (7) are respectively fixed on the two rotating ejection pieces (6), when ejector pin (61) promoted one-half milling cutter (4) simultaneously, the output of locating part (7) can be inserted on carousel (3), and stopper (5) are located spout (31) and fix milling cutter (4) tip between ejector pin (61) and stopper (5).

2. The milling machine facilitating cutter replacement of claim 1, wherein: evenly seted up the jack the same with inserted bar quantity on carousel (3), locating part (7) are including box body (71), apron (72), baffle (73), second spring (74) and inserted bar (75), box body (71) are fixed on the push rod, and the one end of box body (71) is open end and the other end is the blind end, the open end department at box body (71) is fixed in apron (72), baffle (73) set up in box body (71), the spring is compression state setting in box body (71) and its both ends respectively with apron (72) and baffle (73) butt, inserted bar (75) pierce through blind end, baffle (73) and apron (72) of box body (71) in proper order and with baffle (73) rigid coupling, the one end that inserted bar (75) pierce through baffle (73) can be inserted in the jack.

3. The milling machine facilitating cutter replacement of claim 2, wherein: a fixture block (76) is fixedly arranged on the inserted rod (75), the fixture block (76) is positioned in the box body (71), a through hole is formed in the cover plate (72), and the fixture block (76) can pass through the through hole.

4. The milling machine facilitating cutter replacement of claim 1, wherein: two limiting rings (21) are fixedly mounted on the rotating shaft (2), and the two limiting rings (21) respectively clamp the two rotating ejection pieces (6) between the two rotating ejection pieces and the two turntables (3).

5. The milling machine facilitating cutter replacement of claim 1, wherein: still including sliding chamber, first spring (33), spacing post (34) and pit (51), on two inner walls that spout (31) is relative, two liang of correspondences have been seted up towards the correspondence to the notch of perpendicular to spout (31) the chamber of sliding, first spring (33) set up at its inside and its one end is fixed to be set up in the inside in chamber of sliding along the length direction in chamber of sliding, the one end of spacing post (34) and the other end fixed connection of first spring (33) and its other end are located the chamber outside of sliding, and spacing post (34) are located the one end outside the chamber of sliding and set up to the ball-type terminal surface, pit (51) are seted up on stopper (5) both sides of carrying on the back mutually, and two pit (51) can correspond a set of spacing post (34) and spacing post (34) simultaneously and insert in pit (51).

6. The milling machine facilitating cutter replacement of claim 1, wherein: the one end that spout (31) are close to carousel (3) centre of a circle sets up to the inclined plane, one side that milling cutter (4) tip and the one end on spout (31) inclined plane can be laminated sets up to the inclined plane the same with spout (31), the tip of ejector pin (61) is provided with the inclined plane, and the orientation on the inclined plane of ejector pin (61) tip sets up with the orientation on the inclined plane of spout (31) relatively.

7. The milling machine facilitating cutter replacement of claim 6, wherein: and (3) polishing the edge angle of the intersection of the inclined plane and the side surface of the end part of the ejector rod (61) to enable the edge angle to be in circular arc transition.

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