Milling device for automobile parts

Abstract

The present invention discloses a milling device for automobile parts, which relates to the field of automobile parts milling technology, and comprises a first slide, a seat frame is mounted on the front end of the first slide, a second slide frame is horizontally mounted on the top of the seat frame, a milling machine is mounted on the second slide, and the milling machine can slide left and right on the second slide, and a milling cutter is mounted on the milling machine, and the milling cutter can rotate at high speed driven by the milling machine. The milling device for automobile parts can again use the sound-absorbing holes to eliminate the bass generated by slight friction when the connection part between the second cylinder and the bucket sleeve rotates relative to each other, thereby achieving a third weakening of the sound, can help the milling cutter dissipate heat, extend the service life of the milling cutter, provide auxiliary support for the middle part of the milling cutter, enhance the structural connection strength between the milling cutter and the milling machine, and prevent the tip of the milling cutter from being directly broken from the middle due to resistance.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts milling, in particular to an automobile parts milling device. Background Art

[0002] Milling refers to the use of a rotating multi-blade tool to cut workpieces. It is a highly efficient processing method. During operation, the tool rotates as the main motion, and the workpiece moves and performs feed motion. The workpiece can also be fixed, but at this time the rotating tool must also move to complete the main motion and feed motion at the same time; the machine tools used for milling include horizontal milling machines or vertical milling machines, as well as large gantry planers. These machine tools can be ordinary machine tools or CNC machine tools, using a rotating milling cutter as the tool for cutting processing. Milling is generally performed on a milling machine or a boring machine, and is suitable for processing planes, grooves, various forming surfaces, such as splines, gears and threads, and special surfaces of molds.

[0003] The existing milling devices for automotive parts often produce loud noises during the processing of parts, which not only affects the working mood of the staff, but also makes it difficult for the staff to concentrate on operating the equipment for cutting, adjustment and observation. In addition, there is no protective structure for the milling cutter, so the milling cutter will break directly in the middle when it is misoperated, and there is no protection or prevention mechanism at all. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automobile parts milling device, comprising a first slide, a seat frame is mounted on the front end of the first slide, a second slide is horizontally mounted on the top of the seat frame, a milling machine is mounted on the second slide, and can slide left and right on the second slide, a milling cutter is mounted on the milling machine, and the milling cutter can rotate at high speed under the drive of the milling machine;

[0005] It also includes a silencer assembly, which is installed on the milling cutter, and the silencer assembly includes a first silencer far away from one end of the milling machine, a second silencer is installed at one end of the first silencer close to the milling machine, and a third silencer is installed at one end of the second silencer close to the milling machine, and the milling cutter passes through the third silencer, the second silencer and the first silencer in sequence from front to back, and passes through the middle of the first silencer, so as to perform milling processing on the accessories;

[0006] A moving assembly is mounted on the first slide and can slide forward and backward on the first slide. The moving assembly includes a body mounted on the first slide. A milling fluid conduit is mounted in a linear array on the upper side of the front end surface of the body, which is used to spray milling fluid from the inside of the body to the front end of the milling fluid conduit to the accessory being milled. A three-claw cylinder is mounted in the middle of the front end of the body, which is used to clamp and fix the accessory and can drive the accessory to move forward and backward on the first slide.

[0007] A roof panel assembly is installed on the moving assembly and is located above the first slide. The roof panel assembly includes a ridge body installed above the first slide. A cross-mounted plate is fitted on the portion where the ridge body contacts the machine body. Screws are threadedly installed on the left and right ends of the cross-mounted plate. The ridge body is threadedly installed on the machine body through the cross-mounted plate and the screws.

[0008] Preferably, the first silencer comprises a first cylinder mounted on the milling cutter, the inner wall surface of the first cylinder is provided with silencer plates in a circular array, and a central sleeve is installed in the middle of the inner side of the first cylinder.

[0009] Preferably, wing fans are installed between the central sleeve and the inner wall of the first cylinder, and the wing fans are arranged in a circular array between the central sleeve and the first cylinder as a whole, and the central sleeve is connected to the first cylinder as a whole through the wing fans.

[0010] Preferably, the inner wall of one end of the central sleeve facing the second silencer is symmetrically provided with slots, and a shaft head sleeve is fixedly installed in the middle of one end of the central sleeve away from the milling machine.

[0011] Preferably, a first latch is inserted through the middle of the shaft head sleeve, and the milling cutter passes through the shaft head sleeve and is positioned and inserted inside the shaft head sleeve by the first latch. The milling cutter is installed with the first cylinder pin through the cooperation of the shaft head sleeve and the first latch.

[0012] Preferably, the second silencer comprises a second cylinder installed inside the first cylinder, the outer surface of the second cylinder is provided with sound-reducing slits in a circular array, and the overall shape of the sound-reducing slits is arc-shaped, and a thin cylinder is provided in the middle of the inner wall surface of the second cylinder for the milling cutter to pass through the inner cavity of the second cylinder.

[0013] Preferably, an inner sleeve is installed at the end of the second cylinder member facing the inner side of the first cylinder member, and a second pin is inserted in the middle of the inner sleeve, and the milling cutter is also installed with the second cylinder member pin through the cooperation of the second pin and the inner sleeve, and a copper sleeve is installed at the inner side of the thin cylinder and at one end away from the first cylinder member, and the milling cutter is also inserted and arranged with the second cylinder member through the copper sleeve, and the second cylinder member is installed in an engaging manner with the first cylinder member through the cooperation of the second pin and the slot.

[0014] Preferably, the third silencer comprises a bucket sleeve installed between the second silencer and the milling machine, and a sound-absorbing hole is opened in a circular array in the middle part of the outer surface of the bucket sleeve, and a silent bearing is installed on the surface of one end of the bucket sleeve close to the second sleeve, and the silent bearing is mounted on the milling cutter, so that the milling cutter can be rotatably mounted with the bucket sleeve through the silent bearing, and the entire bucket sleeve is mounted on the milling machine, and the milling cutter is rotatably mounted with the bucket sleeve through the cooperation of the milling machine and the silent bearing.

[0015] Preferably, folding parts are arranged at equal intervals on the ridge body to ensure that the ridge body as a whole can be unfolded and tightened in the horizontal front and rear directions. The interior of the ridge body is symmetrically inserted with guide rods, and the end of the guide rod away from the body is inserted with a lifting ring, the top of the lifting ring is fixedly connected to the bottom of the seat frame, and the end of the guide rod away from the lifting ring is threadedly installed on the body.

[0016] Preferably, a square box is installed on both sides of the left and right sides of the first slide, and the square box includes square buckets installed on the left and right sides of the first slide, and a filter plate is installed on the inner bottom of the square bucket for filtering and separating iron filings and milling fluid, and a soft stacking pipe is connected to the rear end of the square bucket, and a pump suction pipe is installed on the left and right side walls of the machine body for recovering the milling fluid filtered inside the filter plate to the inside of the machine body through the soft stacking pipe for reuse.

[0017] The present invention provides an automobile parts milling device, which has the following beneficial effects:

[0018] 1. The automobile parts milling device, after rotating and installing the second cylinder and the milling machine through the silent bearing, not only does not generate additional business, but also can use the sound-absorbing holes to eliminate the bass generated by slight friction when the connecting part of the second cylinder and the bucket sleeve rotates relative to each other, thereby achieving the third weakening of the sound.

[0019] Second, the automobile parts milling device radiates heat to the surroundings through the central sleeve and the thin tube under the action of heat conduction of the milling cutter itself, and combines the flow of air around these two structures to accelerate the heat conduction and heat dissipation function of the milling cutter itself, thereby further improving the heat dissipation effect of the milling cutter itself.

[0020] 3. The milling device for automobile parts can not only absorb and weaken the sound through the silencer assembly, but also help the milling cutter to dissipate heat and extend the service life of the milling cutter. At the same time, it can also provide auxiliary support for the middle part of the milling cutter, enhance the structural connection strength between the milling cutter and the milling machine, and prevent the milling cutter tip from being directly broken from the middle due to resistance.

[0021] Fourth, the milling device for automobile parts, by unfolding the ridge body as a whole below the vertical projection of the part, blocks the iron chips and the milling fluid on the outside of the first slide, prevents the iron chips and the milling fluid from blocking the normal operation of the first slide, and provides protection for the normal operation of the first slide. At the same time, the iron chips and the milling fluid are divided into left and right streams and guided to both sides, and the iron chips and the milling fluid tank are collected through the square bucket. After the milling fluid is filtered through the filter plate, the milling fluid is transferred back into the inner side of the machine body by starting the pump suction pipe with the help of soft stacked pipes for secondary recycling, thereby avoiding the waste of milling fluid and solving the cost of milling processing of parts.

[0022] 5. The automobile parts milling device installs one end of the guide rod on the bottom of the seat frame through a hanging ring. The external force can be transmitted to the ridge body by using the shaking generated by the milling machine when running on the second slide. The shaking generated by the milling machine when running can be used to help the iron filings and milling fluid that fall on the ridge body to be quickly introduced into the square bucket, so as to prevent the iron filings and milling fluid from accumulating on the ridge body and damaging the ridge body. When not in use, the ridge body can be squeezed and closed as a whole through the folding part to reduce the contact area with the air, avoid dust accumulation caused by long-term non-use, and affect the normal recycling of the milling fluid, prevent dust accumulation on the folding part, and pollute the milling fluid, avoid weakening of the cooling and lubricating effect of the recycled milling fluid, and ensure that the function of the recycled milling fluid is not affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the external structure of an automobile parts milling device of the present invention;

[0024] Figure 2 It is a schematic structural diagram of the second slide and the milling machine of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the muffler assembly of the present invention;

[0026] Figure 4 It is a schematic structural diagram of the first muffler of the present invention;

[0027] Figure 5 is a schematic structural diagram of the second muffler of the present invention;

[0028] Figure 6 It is a schematic diagram of the assembly structure of the first muffler and the second muffler of the present invention;

[0029] Figure 7 It is a schematic diagram of the assembly structure of the first cylinder and the milling cutter of the present invention;

[0030] Figure 8 is a schematic structural diagram of a third muffler of the present invention;

[0031] Fig. 9 It is a structural schematic diagram of the roof panel assembly of the present invention;

[0032] Fig.10 It is a schematic diagram of the moving assembly and the square box structure of the present invention.

[0033] In the figure: 1, first slide; 2, seat frame; 3, second slide; 4, milling machine; 5, silencer assembly; 51, first silencer; 52, second silencer; 53, third silencer; 511, first cylinder; 512, silencer plate; 513, central sleeve; 514, wing fan; 515, slot; 516, shaft head sleeve; 517, first latch; 521, second cylinder; 522, sound reduction seam; 523, thin cylinder; 524, inner sleeve; 525 , second latch; 526, copper sleeve; 531, bucket sleeve; 532, sound-absorbing hole; 533, silent bearing; 6, moving assembly; 61, machine body; 62, milling fluid guide tube; 63, three-claw cylinder; 7, roof board assembly; 71, ridge body; 72, horizontal mounting plate; 73, screw; 74, folding part; 75, guide rod; 76, lifting ring; 8, square box; 81, square bucket; 82, filter plate; 83, soft stacking pipe; 84, pump suction pipe; 9, milling cutter. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0035] The first embodiment, as Figures 1 to 10 As shown, the present invention provides a technical solution: an automobile parts milling device, comprising a first slide 1, a seat frame 2 is mounted on the front end of the first slide 1, a second slide 3 is horizontally mounted on the top of the seat frame 2, a milling machine 4 is mounted on the second slide 3, and can slide left and right on the second slide 3, a milling cutter 9 is mounted on the milling machine 4, and the milling cutter 9 can rotate at a high speed driven by the milling machine 4;

[0036] It also includes a silencer assembly 5, which is installed on the milling cutter 9. The silencer assembly 5 includes a first silencer 51 far from one end of the milling machine 4, a second silencer 52 is installed at one end of the first silencer 51 close to the milling machine 4, and a third silencer 53 is installed at one end of the second silencer 52 close to the milling machine 4. The milling cutter 9 passes through the third silencer 53, the second silencer 52 and the first silencer 51 from front to back in sequence, and passes through the middle of the first silencer 51, so as to perform milling processing on the accessories;

[0037] The moving assembly 6 is installed on the first slide 1 and can slide forward and backward on the first slide 1. The moving assembly 6 includes a body 61 installed on the first slide 1. A milling fluid conduit 62 is installed in a linear array on the upper side of the front end surface of the body 61, which is used to spray milling fluid from the inside of the body 61 to the front end of the milling fluid conduit 62 to the accessory being milled. A three-claw cylinder 63 is installed in the middle of the front end of the body 61, which is used to clamp and fix the accessory and can drive the accessory to move forward and backward on the first slide 1.

[0038] The roof panel assembly 7 is installed on the moving assembly 6 and is located above the first slide 1. The roof panel assembly 7 includes a ridge body 71 mounted above the first slide 1. The portion where the ridge body 71 contacts the machine body 61 is fitted with a cross-mounted plate 72. The left and right ends of the cross-mounted plate 72 are both threadedly installed with screws 73. The ridge body 71 is threadedly installed with the machine body 61 through the cooperation of the cross-mounted plate 72 and the screws 73.

[0039] When in use, first clamp the accessory and install it on the front end of the machine body 61 through the three-claw cylinder 63, and then drive the milling machine 4 to move horizontally left and right on the top of the frame 2 through the second slide 3, so that the vertical projection of the milling cutter 9 on the machine body 61 falls on the starting end of the surface of the clamped accessory to be milled, and then drive the moving assembly 6 as a whole forward through the first slide 1, so that the starting end of the accessory to be milled contacts with the free end of the milling cutter 9, and then according to the specific walking path of the milling process on the accessory, control the estimation of the forward and backward movement of the moving assembly 6 on the first slide 1, and synchronously control the left and right horizontal sliding movement of the milling machine 4 on the second slide 3, to cooperate with the milling machine 4 to drive the milling cutter 9 to mill the accessory, finally, after setting the movement mode of the milling machine 4 on the second slide 3 and the movement mode of the moving assembly 6 on the first slide 1, start the milling machine 4 to drive the milling cutter 9 to mill the accessory.

[0040] The milling fluid can be sprayed intermittently on the milled parts through the milling fluid conduit 62 to assist the milling cutter 9 in milling the parts.

[0041] The second embodiment is based on the first embodiment. Figures 1 to 8 As shown, the first silencer 51 includes a first cylinder 511 installed on the milling cutter 9, the inner wall surface of the first cylinder 511 is installed with silencer plates 512 in a circular array, and a central sleeve 513 is installed in the middle of the inner side of the first cylinder 511; wing fans 514 are installed between the central sleeve 513 and the inner wall of the first cylinder 511, and the wing fans 514 are arranged in a circular array between the central sleeve 513 and the first cylinder 511 as a whole, and the central sleeve 513 is connected to the first cylinder 511 through the wing fans 514 as a whole.

[0042] The central sleeve 513 has symmetrically provided inner wall grooves 515 on one end facing the second silencer 52, and a shaft head sleeve 516 is fixedly installed in the middle of the end of the central sleeve 513 away from the milling machine 4; a first latch 517 is inserted through the middle of the shaft head sleeve 516, and the milling cutter 9 passes through the shaft head sleeve 516 and is positioned and inserted into the inner side of the shaft head sleeve 516 by the first latch 517. The milling cutter 9 is installed with the first cylinder 511 by latch through the shaft head sleeve 516 and the first latch 517.

[0043] The second silencer 52 includes a second cylinder 521 installed inside the first cylinder 511. The outer surface of the second cylinder 521 is provided with sound-reducing slits 522 in a circular array, and the overall opening shape of the sound-reducing slits 522 is arc-shaped. A thin cylinder 523 is provided in the middle of the inner wall of the second cylinder 521 for the milling cutter 9 to pass through the inner cavity of the second cylinder 521. An inner sleeve 524 is installed at one end of the second cylinder 521 facing the inner side of the first cylinder 511, and A second latch 525 is inserted in the middle of the inner sleeve 524, and the milling cutter 9 is also installed with the second cylinder 521 by the second latch 525 and the inner sleeve 524. A copper sleeve 526 is installed on the inner side of the thin cylinder 523 and at one end away from the first cylinder 511. The milling cutter 9 is also inserted and arranged with the second cylinder 521 through the copper sleeve 526. The second cylinder 521 is installed with the first cylinder 511 by the second latch 525 and the slot 515.

[0044] The third silencer 53 includes a bucket sleeve 531 installed between the second silencer 52 and the milling machine 4. The middle part of the outer surface of the bucket sleeve 531 is provided with sound-absorbing holes 532 in a circular array. A silent bearing 533 is installed on the surface of one end of the bucket sleeve 531 close to the second cylinder 521, and the silent bearing 533 is mounted on the milling cutter 9, so that the milling cutter 9 can be rotatably installed with the bucket sleeve 531 through the silent bearing 533. The bucket sleeve 531 is integrally mounted on the milling machine 4, and the milling cutter 9 is rotatably installed with the bucket sleeve 531 through the milling machine 4 and the silent bearing. The surface of the milling cutter 9 does not contact with any inner wall of the structure of the third silencer 53, but is spaced a certain distance away from the inner wall, so as to facilitate heat dissipation on the surface of the milling cutter 9.

[0045] When in use, the first silencer 51 and the second silencer 52 are assembled on the milling cutter 9, and the third silencer 53 is used as a structural support for the silencer assembly 5 installed on the milling machine 4, so that only the first silencer 51 and the second silencer 52 rotate at high speed together with the milling cutter 9 at the output end of the milling machine 4, and the milling cutter 9 is used to drive the first silencer 51 to rotate at high speed, and the wing fan 514 can be used to blow the air flow forward, so as to help the heat generated by the milling cutter 9 and the milling part of the accessory to be evacuated at a close distance, and prevent the heat from accumulating on the milling cutter 9 for a long time. Under the dominance of the overall cooling of the milling cutter 9 by the milling fluid, the cooling effects of the two complement each other, and further improve the cooling effect on the milling cutter 9.

[0046] At the same time, the hot air flow is adhered to the inner side of the first cylinder 511 and guided forward by the wing fan 514. The air stirred in the contact area between the milling cutter 9 and the accessory during milling is also guided forward, and a cyclone is formed near the shaft head sleeve 516 at the rear end of the first cylinder 511 to actively guide, transport and transfer the sound generated during milling at a close distance. Combined with the silencer plate 512 being in the path that the air flow must pass, the silencer plate 512 can be used to perform the first level of sound attenuation.

[0047] Secondly, when the hot air flow passes through the cylindrical interlayer space between the first cylinder 511 and the second cylinder 521, the hot air flow can be guided by adhering to the surface of the second cylinder 521, and the second cylinder 521 can absorb the sound through the sound-reducing slit 522 when rotating at a high speed, so as to achieve a second weakening of the sound; and the cyclone generated by throwing the internal air flow outward in a circular array through the sound-reducing slit 522 can make the hot air flow diffuse faster around, so as to achieve a second dissipation of the hot air flow.

[0048] Furthermore, the heat conduction of the milling cutter 9 itself can radiate heat to the surroundings through the central sleeve 513 and the thin tube 523, and the airflow flows around the two structures to accelerate the heat conduction and heat dissipation function of the milling cutter 9, thereby further improving the heat dissipation effect of the milling cutter 9.

[0049] Finally, after the second cylinder 521 and the milling machine 4 are rotated and installed through the silent bearing 533, not only will no additional business be generated, but the sound-absorbing hole 532 can also be used again to eliminate the bass generated by slight friction when the connecting part of the second cylinder 521 and the bucket sleeve 531 rotates relative to each other, thereby achieving the third weakening of the sound.

[0050] Combined with the above-mentioned usage effects, it can be seen that the silencer assembly 5 can not only absorb and weaken the sound, but also help the milling cutter 9 to dissipate heat and extend the service life of the milling cutter. At the same time, it can also provide auxiliary support for the middle part of the milling cutter 9, enhance the structural connection strength between the milling cutter 9 and the milling machine 4, and prevent the tip of the milling cutter 9 from being directly broken from the middle due to resistance.

[0051] The third embodiment is based on the first and second embodiments. Fig. 9 and Fig.10 As shown, folding portions 74 are arranged at equal intervals on the ridge body 71, which can ensure that the ridge body 71 as a whole can be unfolded and tightened in the horizontal front and rear directions. The interior of the ridge body 71 is symmetrically inserted with guide rods 75, and the end of the guide rod 75 away from the body 61 is inserted with a lifting ring 76, the top of the lifting ring 76 is fixedly connected to the bottom of the seat frame 2, and the end of the guide rod 75 away from the lifting ring 76 is threadedly installed on the body 61.

[0052] A square box 8 is installed on both sides of the first slide 1. The square box 8 includes a square bucket 81 installed on the left and right sides of the first slide 1. A filter plate 82 is installed on the inner bottom of the square bucket 81 for filtering and separating iron filings from the milling fluid. A soft stacking pipe 83 is connected to the rear end of the square bucket 81. A pump suction pipe 84 is installed on the left and right side walls of the machine body 61 for recovering the milling fluid filtered inside the filter plate 82 to the inner side of the machine body 61 through the soft stacking pipe 83 for reuse.

[0053] When in use, the ridge body 71 is unfolded as a whole below the vertical projection of the accessory to block the iron filings and milling fluid on the outside of the first slide 1, preventing the iron filings and milling fluid from blocking the normal operation of the first slide 1, providing protection for the normal operation of the first slide 1, and at the same time, the iron filings and milling fluid are divided into left and right streams and guided to both sides, and the iron filings and milling fluid tank are collected through the square bucket 81. After the milling fluid is filtered through the filter plate 82, the milling fluid is transferred back into the inside of the machine body 61 by starting the pump suction pipe 84 with the help of the soft stacking pipe 83 for secondary recycling, thereby avoiding the waste of milling fluid and solving the cost of milling processing of accessories.

[0054] At the same time, one end of the guide rod 75 is installed at the bottom of the seat frame 2 via the hanging ring 76, and the shaking generated when the milling machine 4 is running on the second slide 3 can be used to transmit the external force to the ridge body 71. The shaking generated when the milling machine 4 is running can be used to help the iron filings and milling fluid that fall on the ridge body 71 to be quickly introduced into the square bucket 81, so as to prevent the iron filings and milling fluid from accumulating on the ridge body 71 and damaging the ridge body 71. When not in use, the ridge body 71 can be squeezed and closed as a whole through the folding part 74 to reduce the contact area with the air, avoid dust accumulation caused by long-term non-use, and affect the normal recycling of the milling fluid, prevent dust from accumulating on the folding part 74, and pollute the milling fluid, avoid the cooling and lubricating effect of the recycled milling fluid from weakening, and ensure that the function of the recycled milling fluid is not affected.

[0055] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A milling device for automobile parts, comprising a first slide (1), characterized in that: A seat frame (2) is mounted on the front end of the first slide (1), a second slide (3) is laterally mounted on the top of the seat frame (2), a milling machine (4) is mounted on the second slide (3) and is capable of sliding left and right on the second slide (3), and a milling cutter (9) is mounted on the milling machine (4); The invention also comprises a silencer assembly (5), the silencer assembly (5) being mounted on the milling cutter (9), the silencer assembly (5) comprising a first silencer (51) at one end away from the milling machine (4), a second silencer (52) being mounted at one end of the first silencer (51) close to the milling machine (4), a third silencer (53) being mounted at one end of the second silencer (52) close to the milling machine (4), and the milling cutter (9) passing through the third silencer (53), the second silencer (52) and the first silencer (51) in sequence from front to back and passing out from the middle of the first silencer (51), so as to perform milling processing on the accessories; A moving assembly (6), the moving assembly (6) being mounted on the first slide (1) and capable of sliding forward and backward on the first slide (1), the moving assembly (6) comprising a body (61) mounted on the first slide (1), a milling fluid conduit (62) being mounted in a linear array on the upper side of the front end surface of the body (61), a three-claw cylinder (63) being mounted in the middle of the front end of the body (61) for clamping and fixing the accessory and capable of driving the accessory to move forward and backward on the first slide (1); A roof panel assembly (7), the roof panel assembly (7) being mounted on the moving assembly (6) and being arranged above the first slide (1), the roof panel assembly (7) comprising a ridge body (71) mounted above the first slide (1), a cross-mounting plate (72) being fitted and mounted at a portion of the ridge body (71) in contact with the machine body (61), screws (73) being threadedly mounted on both left and right ends of the cross-mounting plate (72), and the ridge body (71) being threadedly mounted on the machine body (61) through the cooperation of the cross-mounting plate (72) and the screws (73); The first silencer (51) comprises a first cylinder (511) mounted on the milling cutter (9), the inner wall surface of the first cylinder (511) being provided with silencer plates (512) in a circular array, and a central sleeve (513) being installed in the middle of the inner side of the first cylinder (511); A wing fan (514) is installed between the central sleeve (513) and the inner wall of the first cylinder (511), and the wing fans (514) are arranged in a circular array between the central sleeve (513) and the first cylinder (511). The central sleeve (513) is connected to the first cylinder (511) via the wing fans (514) to form a whole. The inner wall of one end of the central sleeve (513) facing the second silencer (52) is symmetrically provided with slots (515), and a shaft head sleeve (516) is fixedly mounted in the middle of one end of the central sleeve (513) away from the milling machine (4); A first latch (517) is inserted through the middle of the shaft head sleeve (516); the milling cutter (9) passes through the shaft head sleeve (516) and is positioned and inserted into the inner side of the shaft head sleeve (516) by the first latch (517); the milling cutter (9) is latched and installed with the first cylinder (511) through the cooperation of the shaft head sleeve (516) and the first latch (517); The second silencer (52) comprises a second cylinder (521) mounted inside the first cylinder (511); the outer surface of the second cylinder (521) is provided with sound-reducing slits (522) in a circular array, and the overall opening shape of the sound-reducing slits (522) is arc-shaped; a thin cylinder (523) is provided in the middle of the inner wall surface of the second cylinder (521); and the milling cutter (9) is arranged through the inner cavity of the second cylinder (521); An inner sleeve (524) is installed at one end of the second cylinder (521) facing the inner side of the first cylinder (511), and a second latch (525) is inserted in the middle of the inner sleeve (524); the milling cutter (9) is also installed with the second cylinder (521) by means of the second latch (525) and the inner sleeve (524); a copper sleeve (526) is installed at one end of the inner side of the thin cylinder (523) away from the first cylinder (511); the milling cutter (9) is also inserted and arranged with the second cylinder (521) by means of the copper sleeve (526); the second cylinder (521) is installed with the first cylinder (511) by means of the second latch (525) and the slot (515); The third silencer (53) comprises a bucket sleeve (531) installed between the second silencer (52) and the milling machine (4); a sound-absorbing hole (532) is provided in a circular array in the middle of the outer surface of the bucket sleeve (531); a silent bearing (533) is installed on the surface of one end of the bucket sleeve (531) close to the second cylinder (521); and the silent bearing (533) is sleeved on the milling cutter (9), so that the milling cutter (9) can be rotatably installed with the bucket sleeve (531) through the silent bearing (533); the bucket sleeve (531) is integrally sleeved on the milling machine (4); and the milling cutter (9) is rotatably installed with the bucket sleeve (531) through the cooperation of the milling machine (4) and the silent bearing; The ridge body (71) is provided with folding portions (74) at equal intervals, which can ensure that the ridge body (71) as a whole can be unfolded and tightened in a horizontal front-back direction; the interior of the ridge body (71) is symmetrically inserted with a guide rod (75); and the end of the guide rod (75) away from the machine body (61) is inserted with a lifting ring (76); the top of the lifting ring (76) is fixedly connected to the bottom of the seat frame (2); and the end of the guide rod (75) away from the lifting ring (76) is threadedly installed on the machine body (61); A square box (8) is installed on both left and right sides of the first slide (1), the square box (8) comprises a square bucket (81) installed on both left and right sides of the first slide (1), a filter plate (82) is installed on the inner bottom of the square bucket (81), a soft stacking pipe (83) is connected to the rear end of the square bucket (81), and a pump suction pipe (84) is installed on the left and right side walls of the machine body (61); The first silencer (51) and the second silencer (52) are assembled on the milling cutter (9), and the third silencer (53) is used as a structural support for the installation of the silencer assembly (5) on the milling machine (4), so that only the first silencer (51) and the second silencer (52) rotate at high speed together with the milling cutter (9) at the output end of the milling machine (4). The milling cutter (9) drives the first silencer (51) to rotate at high speed, and the wing fan (514) can be used to blow the airflow forward, so as to help the milling cutter (9) and the milling parts of the parts to be evacuated at a close distance, thereby preventing the heat from being accumulated on the milling cutter (9) for a long time, and the milling fluid can cool the milling cutter (9) as a whole; At the same time, the hot air flow is guided forward by the wing fan (514) and the first cylinder (511) by adhering to the inner side of the first cylinder (511), and the air stirred in the contact portion between the milling cutter (9) and the accessory during milling can also be guided forward, and a cyclone is formed near the shaft head sleeve (516) at the rear end of the first cylinder (511), so as to actively guide, transport and transfer the sound generated during milling at a close distance. In combination with the silencer plate (512) being located on the path that the air flow must pass through, the silencer plate (512) can be used to weaken the sound in the first stage. Secondly, when the hot air flow passes through the cylindrical interlayer space between the first cylinder (511) and the second cylinder (521), the hot air flow can be guided by the surface of the second cylinder (521) and the second cylinder (521) can absorb the sound through the sound reduction slit (522) when the second cylinder (521) rotates at a high speed, thereby achieving a second level of sound attenuation; and the cyclone generated by throwing the internal air flow outward in a circular array through the sound reduction slit (522) can make the hot air flow diffuse faster around, thereby achieving a second level of dissipation of the hot air flow; Furthermore, the heat conduction of the milling cutter (9) itself can radiate heat to the surroundings through the central sleeve (513) and the thin tube (523), and combined with the airflow flowing around the two structures, the heat conduction and heat dissipation functions of the milling cutter (9) itself can be accelerated, thereby further improving the heat dissipation effect of the milling cutter (9) itself. Finally, after the second cylinder (521) and the milling machine (4) are rotatably mounted via the silent bearing (533), the sound-absorbing hole (532) can be used again to eliminate the bass generated by slight friction when the connection between the second cylinder (521) and the bucket sleeve (531) rotates relative to each other, thereby achieving a third level of sound reduction.

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