Cutting device and method for automobile air conditioner plastic part machining

Abstract

The invention discloses a cutting device and method for automobile air conditioner plastic part machining, and relates to the technical field of plastic part cutting machining. According to the cutting device and method for machining the plastic parts of the automobile air conditioners, the cutting device comprises a shell and a cutting tool bit which is arranged in the shell and used for cutting the plastic parts of the automobile air conditioners, and an electric push rod is fixed in the shell; a cutting assembly used for cutting the automobile air conditioner plastic part and a maintaining assembly used for keeping the flatness of a cutting tool bit are arranged in the shell, the cutting assembly comprises a supporting column, and one end of the supporting column is detachably connected with the cutting tool bit and used for providing supporting force for the cutting tool bit; the surface quality and the size precision of the automobile air conditioner plastic parts are prevented from being affected, the interval duration of cutting machining of each cutting tool bit is prolonged, the cooling time of the cutting tool bits is prolonged, and therefore the product quality of the automobile air conditioner plastic parts obtained after cutting machining is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cutting and processing of plastic parts, in particular to a cutting device and method for processing automobile air-conditioning plastic parts. Background Art

[0002] Compared with metals, plastics have a small heat capacity, poor thermal conductivity (its thermal conductivity is only 0.03% or less of that of metals), and a large thermal expansion coefficient (1.5-20 times larger than that of metals). The heat generated by friction during the cutting process is mainly transferred to the tool. When cutting for a long time, the heated tool will in turn transfer the heat to the plastic part. This part of the heat is difficult to transfer into the interior of the plastic part, which can easily cause local overheating, causing the plastic part to discolor and melt, affecting the surface quality and dimensional accuracy of the plastic part.

[0003] For example, the automatic groove processing machine for plastic parts disclosed in the publication number CN101920343A has the problem that during the long-term cutting process of plastic parts, the heated tool will in turn transfer heat to the plastic parts, and this part of heat is difficult to transfer into the interior of the plastic parts, which is very likely to cause local overheating, causing the plastic parts to discolor and melt, and affecting the surface quality and dimensional accuracy of the plastic parts;

[0004] Therefore, a cutting device and method for processing automobile air-conditioning plastic parts are proposed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a cutting device and method for processing automobile air-conditioning plastic accessories, which solves the problem that long-term cutting processing causes the cutting tool temperature to be too high, which easily causes the plastic parts to discolor and melt, affecting the surface quality and dimensional accuracy of the plastic parts.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a cutting device for processing automobile air-conditioning plastic parts, comprising a housing, a cutting head arranged in the housing for cutting automobile air-conditioning plastic parts, an electric push rod fixed in the housing, a placement table for placing the plastic parts to be processed fixed at one end of the electric push rod, a control panel fixed on the housing, an observation window provided on the housing, a cutting assembly for cutting automobile air-conditioning plastic parts and a maintenance assembly for maintaining the flatness of the cutting head arranged in the housing, the cutting assembly comprising:

[0007] A support column, one end of which is detachably connected to the cutting bit and used to provide support force to the cutting bit, a lower magnetic chuck is fixed to the other end of the support column, and a support ring is movably mounted on the side wall of the support column through a bearing;

[0008] An upper magnetic chuck is magnetically sucked on the lower magnetic chuck to be combined with the lower magnetic chuck as a whole, a rotating shaft is fixed to the top of the upper magnetic chuck, a driving motor is fixed to one end of the rotating shaft, a supporting rod 1 is fixed to the side wall of the driving motor through a motor box, and the top of the supporting rod 1 is fixed to the top of the inner wall of the shell through an electric telescopic rod;

[0009] The maintenance component includes a support plate for providing support for the maintenance component, a connecting rod is slidably inserted into the support plate, a fixing block is fixed at one end of the connecting rod, a left scraper is slidably installed in the fixing block, and one end of the left scraper is slidably abutted against the cutting bit.

[0010] Preferably, a support rod 2 is slidably inserted into the support ring, one end of the support rod 2 is fixed to the top of the inner wall of the shell, a support rod 3 is fixed to the bottom of the support rod 1, an electromagnet 1 is fixed to the bottom of the support rod 3, a push rod is slidably sleeved on the support rod 3, a spring 1 is fixed to one end of the push rod, the other end of the spring 1 is fixed to the support rod 3, a slider is fixed on the support ring, one end of the push rod is in sliding contact with the spirally arranged slider, and a magnet 1 is fixed to the bottom of the push rod.

[0011] Preferably, the support plate is located below the cutting head, a servo motor is fixed to the bottom of the support plate through a motor seat, an output shaft is fixed to the output end of the servo motor, a gear is fixed to one end of the output shaft, a rack is meshed on the gear, and the top of the rack is fixedly connected to the bottom of the connecting rod.

[0012] Preferably, a second magnet is fixed on the side wall of the left scraper, a second electromagnet is fixed in the fixed block, a winding wheel is passed through the output shaft, a connecting rope is fixed on the winding wheel, a guide wheel is abutted on the connecting rope, a protrusion is fixed at one end of the connecting rope, a sliding rod is fixed at one end of the protrusion, a right scraper is slidably connected to the side wall of the sliding rod, a fixing plate is fixed to the bottom of the right scraper, a third magnet is fixed to the bottom of the fixing plate, and the third magnet is slidably passed through the support plate.

[0013] Preferably, an electromagnet three is fixed in the support plate, a guide rod is fixed on the side wall of the magnet three, one end of the guide rod is fixed to the bottom of the fixed block, and the side wall of the guide rod is slidably arranged in the fixed plate.

[0014] Preferably, a sliding sleeve is provided on the sliding rod, a side scraper is fixed to one end of the sliding sleeve, one end of the side scraper abuts against the side wall of the cutting head, a spring 2 is fixed to one end of the sliding sleeve, and the other end of the spring 2 is fixed to the sliding rod.

[0015] Preferably, the maintenance component also includes an arc block fixedly inserted on the output shaft, a movable rod slidably inserted in the arc block, a piston is fixed to one end of the movable rod, and a pressure box is slidably connected to the side wall of the piston.

[0016] Preferably, the top of the pressure box is fixed to the bottom of the support plate, the pressure box is separated into two inner chambers and the two inner chambers are connected by a connecting pipe, an air pipe is fixed on the pressure box, and a nozzle is fixed to the other end of the air pipe.

[0017] The present invention also provides a cutting method of a cutting device for processing automobile air-conditioning plastic parts, comprising the following steps:

[0018] S1. Place the plastic parts to be cut on a placement table;

[0019] S2, controlling the cutting assembly to perform cutting processing on the plastic parts through the control panel;

[0020] S3, switching the cutting head in the cutting assembly through the control panel and maintaining the cutting head through the maintenance assembly;

[0021] S4, removing the cut plastic part from the placement table and placing the next plastic part to be processed.

[0022] Preferably, the time required to switch the cutting bit in the cutting assembly is between 7 and 10 seconds.

[0023] The present invention provides a cutting device and method for processing automobile air-conditioning plastic parts. Compared with the prior art, it has the following beneficial effects:

[0024] (1) The cutting device and method for processing automobile air-conditioning plastic parts are provided with a shell, an observation window, a control panel, a placement table, an electric push rod, an electric telescopic rod, a support rod 1, a driving motor, a rotating shaft, an upper magnetic suction cup, a lower magnetic suction cup, a support column, a cutting head, a support rod 2, a support ring, a support rod 3, an electromagnet 1, a spring 1, a magnet 1, a push rod, and a slider. The cutting head can be switched in the gap between replacing the automobile air-conditioning plastic parts to be cut, thereby avoiding the situation where the same cutting head is used for a long time to cut the automobile air-conditioning plastic parts, resulting in the heat generated by friction during the cutting process being transferred to the cutting head and causing the temperature of the cutting head to rise. When the heated cutting head is cutting, the heat will cause the plastic parts to be locally overheated, causing the plastic parts to change color and melt. The surface quality and dimensional accuracy of the automobile air-conditioning plastic parts are avoided from being affected. The gap time for each cutting head to perform cutting processing is increased, so that the cooling time of the cutting head is increased, thereby improving the product quality of the automobile air-conditioning plastic parts after cutting processing.

[0025] (2) The cutting device and method for processing automobile air-conditioning plastic parts are provided with a support plate, a servo motor, an output shaft, a gear, a rack, a connecting rod, a fixing block, an electromagnet 2, a magnet 2, a left scraper, a winding wheel, a connecting rope, a guide wheel, a protrusion, a sliding rod, a sliding sleeve, a spring 2, a side scraper, a right scraper, a magnet 3, a guide rod, and an electromagnet 3. The housing provides a supporting force to the support plate, and the support plate provides a supporting force to the maintenance component. When the cutting heads are switched, one group of used cutting heads will be moved to the maintenance component under the drive of the support ring. The left scraper, the right scraper, and the side scraper in the maintenance component are used to scrape the surface of the cutting head to scrape off the plastic debris that is cut and attached to the surface of the cutting head in a molten state, so as to prevent the plastic debris from adhering to the surface of the cutting head, causing the angle of the tool to change, increasing the cutting depth, and affecting the processing accuracy of the workpiece. The plastic debris attached to the surface of the cutting head is removed in all directions, and the plastic debris attached to the surface of the cutting head of different sizes can be removed to expand the scope of application.

[0026] (3) The cutting device and method for processing automobile air-conditioning plastic parts are provided with an arc block, a movable rod, a piston, a pressure box, a connecting pipe, an air pipe, and a nozzle. When the output shaft drives the maintenance component to operate, a low-temperature airflow is ejected through the nozzle, thereby cooling the cutting head undergoing maintenance, thereby preventing the cutting head from heating up during the maintenance process. When the heated cutting head is performing cutting processing, the heat will cause local overheating of the plastic part, causing the plastic part to discolor and melt, thereby improving the product quality of the automobile air-conditioning plastic parts after cutting processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is the internal structure diagram of the housing of the present invention;

[0029] Figure 3 It is a side sectional structural diagram of the housing of the present invention;

[0030] Figure 4 It is a structural diagram of the driving motor of the present invention;

[0031] Figure 5 It is a partial structural diagram of the cutting assembly of the present invention;

[0032] Figure 6 For the present invention Figure 5 The enlarged view of point A in the middle;

[0033] Figure 7 A structural diagram of the maintenance component of the present invention;

[0034] Figure 8It is a schematic diagram of another perspective of the maintenance component of the present invention;

[0035] Fig. 9 It is a schematic diagram of the combined state of the left scraper of the present invention;

[0036] Fig.10 It is a schematic diagram of the disassembled state of the left scraper of the present invention;

[0037] Fig.11 It is the internal structure diagram of the pressure box of the present invention;

[0038] Fig.12 It is a structural diagram of the guide wheel of the present invention;

[0039] Fig.13 It is a structural diagram of the side scraper of the present invention.

[0040] In the figure: 1, housing; 11, observation window; 12, control panel; 13, placing table; 14, electric push rod; 2, electric telescopic rod; 21, support rod 1; 22, driving motor; 23, rotating shaft; 24, upper magnetic suction cup; 25, lower magnetic suction cup; 26, support column; 27, cutting tool head; 28, support rod 2; 29, support ring; 210, support rod 3; 211, electromagnet 1; 212, spring 1; 213, magnet 1; 214, push rod; 215, slider; 3, support plate; 31, servo motor; 32, output shaft; 33 , gear; 34, rack; 35, connecting rod; 36, fixed block; 37, electromagnet two; 38, magnet two; 39, left scraper; 310, winding wheel; 311, connecting rope; 312, guide wheel; 313, bump; 314, sliding rod; 315, sliding sleeve; 316, spring two; 317, side scraper; 318, right scraper; 319, magnet three; 320, guide rod; 321, electromagnet three; 4, arc block; 41, movable rod; 42, piston; 43, pressure box; 44, connecting pipe; 45, air pipe; 46, nozzle. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] See also Figures 1 to 13 , the present invention provides the following technical solutions:

[0043] Embodiment 1: A cutting device for processing automobile air-conditioning plastic parts, comprising a housing 1, a cutting head 27 arranged in the housing 1 for cutting automobile air-conditioning plastic parts, an electric push rod 14 is fixedly installed at the bottom of the inner wall of the housing 1, and a placement table 13 for placing the plastic parts to be processed is fixedly installed at one end of the electric push rod 14, a control panel 12 for controlling the cutting process is fixedly installed on the door body of the housing 1, an observation window 11 is provided on the door body of the housing 1, and the observation window 11 is made of transparent acrylic material, and a cutting assembly for cutting automobile air-conditioning plastic parts is arranged in the housing 1, and the cutting assembly includes: an electric telescopic rod 2, a support rod 1 21, a driving motor 22, a rotating shaft 23, an upper magnetic suction cup 24, a lower magnetic suction cup 25, a support column 26, a cutting head 27, a support rod 28, a support ring 29, a support rod 3 210, an electromagnet 1 211, a spring 1 212, a magnet 1 213, a push rod 214, and a slider 215;

[0044] The top of the support rod 21 is fixedly mounted on the top of the inner wall of the housing 1 through the electric telescopic rod 2, the side wall of the driving motor 22 is fixedly mounted on the support rod 21 through the motor box, one end of the rotating shaft 23 is fixedly mounted on the output end of the driving motor 22 through a fixed coupling, the top of the upper magnetic suction cup 24 is fixedly mounted on the other end of the rotating shaft 23, the bottom of the upper magnetic suction cup 24 is magnetically attracted to the top of the lower magnetic suction cup 25 for being combined with the lower magnetic suction cup 25 as a whole, one end of the support column 26 is detachably connected to the cutting head 27 for providing support force to the cutting head 27, the other end of the support column 26 is fixedly mounted with a lower magnetic suction cup 25, and the side wall of the support column 26 is movably mounted in the support ring 29 through a bearing;

[0045] A support rod 28 is slidably arranged in the support ring 29, one end of the support rod 28 is fixedly mounted on the top of the inner wall of the housing 1, a support rod 3 210 is fixedly mounted on the bottom of the support rod 1 21, an electromagnet 1 211 is fixedly mounted on the bottom of the support rod 3 210, a push rod 214 is slidably arranged on the support rod 3 210, one end of the push rod 214 is fixedly mounted on a spring 1 212, and the other end of the spring 1 212 is fixedly mounted on the side wall of the support rod 3 210;

[0046] Four sliders 215 are fixedly mounted on the inner ring side wall of the support ring 29 , one end of the push rod 214 is in sliding contact with the spirally arranged slider 215 , and a magnet 213 is fixedly mounted on the bottom of the push rod 214 .

[0047] When in use, the automobile air-conditioning plastic parts to be cut are placed on the placing table 13, and then the electric push rod 14 is gradually raised by the control panel 12. The control panel 12 simultaneously controls the driving motor 22 to rotate, and the driving motor 22 drives the rotating shaft 23 to rotate. The rotating shaft 23 drives the upper magnetic chuck 24 to rotate. The upper magnetic chuck 24 and the lower magnetic chuck 25 are adsorbed together to drive the lower magnetic chuck 25 to rotate. The lower magnetic chuck 25 drives the support column 26 to rotate, and the support column 26 drives the cutting head 27 to rotate. The cutting head 27 performs cutting processing on the automobile air-conditioning plastic parts.

[0048] After the processing of the current automobile air-conditioning plastic parts is completed, the automobile air-conditioning plastic parts are replaced, and at the same time, the control panel 12 controls the electric telescopic rod 2 to move upward, and the electric telescopic rod 2 drives the support rod 1 21 to move, and the support rod 1 21 drives the driving motor 22 to move upward through the motor box, and the driving motor 22 drives the upper magnetic suction cup 24 to move upward through the rotating shaft 23, so that the upper magnetic suction cup 24 is separated from the lower magnetic suction cup 25, and at the same time, the support rod 28 provides a supporting force to the support ring 29 and the two slide together, the support rod 1 21 drives the support rod 3 210 to move, the support rod 3 210 drives the electromagnet 1 211 to move upward, the support rod 3 210 drives the push rod 214 to move upward, and the push rod 214 drives the magnet 1 213 to move upward, and the magnetic mutual repulsion setting of the electromagnet 1 211 and the magnet 1 213 makes the magnet 1 213 keep the push rod 214 under the action of the repulsive force. Figure 3 In the state shown, the push rod 214 slides and abuts against the slider 215 during the upward movement, and the slider 215 can move under the drive of the push rod 214, so that the slider 215 drives the support ring 29 to rotate with the support ring 29 itself as the axis, and the support ring 29 drives the support column 26 to rotate, thereby switching another set of lower magnetic chuck 25, support column 26, and cutting head 27;

[0049] When the next group of lower magnetic suction cups 25, support columns 26, and cutting bits 27 move to the bottom of the upper magnetic suction cup 24, the control panel 12 controls the magnetism of the electromagnet 1 211 to switch to magnetic attraction with the magnet 1 213, so that the push rod 214 moves to the side where the support rod 3 210 is located. Then the control panel 12 controls the electric telescopic rod 2 to move downward, so that the upper magnetic suction cup 24 and the lower magnetic suction cup 25 are attracted together again. At this time, the magnetism of the electromagnet 1 211 switches again to magnetic repulsion with the magnet 1 213, and the push rod 214 is reset to the position under the action of the repulsive force. Figure 3 Position shown;

[0050] At this time, the next automobile air-conditioning plastic part to be cut can be cut, and the cutting head 27 can be switched in the gap between replacing the automobile air-conditioning plastic parts to be cut, so as to avoid overheating of the cutting head 27 due to long-term continuous cutting operation.

[0051] Embodiment 2, the technical solution of this embodiment is different from that of embodiment 1 and includes: a maintenance component for maintaining the flatness of the cutting head 27 is arranged in the housing 1, and the maintenance component includes a support plate 3, a servo motor 31, an output shaft 32, a gear 33, a rack 34, a connecting rod 35, a fixing block 36, an electromagnet 2 37, a magnet 2 38, a left scraper 39, a winding wheel 310, a connecting rope 311, a guide wheel 312, a protrusion 313, a sliding rod 314, a sliding sleeve 315, a spring 2 316, a side scraper 317, a right scraper 318, a magnet 319, a guide rod 320, and an electromagnet 321;

[0052] The support plate 3 is located below the cutting head 27. One end of the support plate 3 is fixedly installed in the housing 1 to provide support for the maintenance assembly. A connecting rod 35 is slidably passed through the support plate 3. A fixing block 36 is fixedly installed at one end of the connecting rod 35. A left scraper 39 is slidably installed in the fixing block 36. One end of the left scraper 39 is slidably abutted against the cutting head 27.

[0053] A servo motor 31 is fixedly installed at the bottom of the support plate 3 through a motor seat, an output shaft 32 is fixedly installed at the output end of the servo motor 31 through a coupling, a gear 33 is fixedly installed at one end of the output shaft 32, a rack 34 is meshed on the gear 33, the top of the rack 34 is fixedly connected to the bottom of the connecting rod 35, a second magnet 38 is fixedly installed on the side wall of the left scraper 39, the second magnet 38 is slidably arranged in the fixed block 36, and a second electromagnet 37 is fixedly installed in the fixed block 36;

[0054] A winding wheel 310 is passed through the output shaft 32, and two connecting ropes 311 are fixed on the winding wheel 310, one of which is slidably connected to a guide wheel 312, and one end of the two connecting ropes 311 is fixedly installed on the upper and lower sides of the protrusion 313, respectively, and a sliding rod 314 is fixedly installed on one end of the protrusion 313, and a right scraper 318 is slidably connected to the side wall of the sliding rod 314, and a fixed plate is fixedly installed at the bottom of the right scraper 318, and a magnet three 319 is fixedly installed at the bottom of the fixed plate, and the side wall of the magnet three 319 is slidably passed through the support plate 3, and an electromagnet three 321 is fixedly installed in the support plate 3, and a guide rod 320 is fixedly installed on the side wall of the magnet three 319, and one end of the guide rod 320 is fixedly installed at the bottom of the fixed block 36, and the side wall of the guide rod 320 is slidably passed through the fixed plate;

[0055] A sliding sleeve 315 is slidably mounted on the sliding rod 314, a side scraper 317 is fixedly mounted on one end of the sliding sleeve 315, one end of the side scraper 317 slides against the side wall of the cutting head 27, a spring 2 316 is fixedly mounted on one end of the sliding sleeve 315, the other end of the spring 2 316 is fixedly mounted on the sliding rod 314, the number of the side scraper 317, the spring 2 316 and the sliding sleeve 315 are all two, and the two side scrapers 317, the spring 2 316 and the sliding sleeve 315 are symmetrically distributed on both sides of the sliding rod 314.

[0056] When in use, the shell 1 provides support force to the support plate 3, and the support plate 3 provides support force to the maintenance component;

[0057] When the cutting heads 27 are switched, one set of used cutting heads 27 will be moved to the maintenance assembly under the drive of the support ring 29. At this time, the control panel 12 controls the electric telescopic rod 2 to move downward while controlling the second electromagnet 37 to be energized and set to mutually repel the magnet with the second magnet 38. The second magnet 38 drives the left scraper 39 to extend out from the fixed block 36, so that the left scraper 39 can be closely attached to one side of the cutting head 27.

[0058] At the same time, the control panel 12 controls the electromagnet 321 to be energized and set to mutually repel the magnet 319, and the magnet 319 drives the right scraper 318 to move along the support plate 3 toward the side where the cutting head 27 is located, so that the right scraper 318 is close to the other side of the cutting head 27;

[0059] The right scraper 318 moves while driving the sliding rod 314 to move synchronously, the sliding rod 314 drives the sliding sleeve 315 to move, and the sliding sleeve 315 drives the side scrapers 317 to move, so that the two side scrapers 317 slide and abut against the two side surfaces of the cutting head 27 respectively, and in the process of the side scrapers 317 approaching the cutting head 27, one end of the side scrapers 317 is inclined so that when the side scrapers 317 contact the cutting head 27, they will first move away from the two sides of the cutting head 27, and then the spring 2 316 provides the side scrapers 317 with an elastic force toward the side where the cutting head 27 is located, so that the side scrapers 317 are closely attached to the surface of the cutting head 27;

[0060] Then, when the control panel 12 controls the drive motor 22 to start, the servo motor 31 is also started synchronously, and the servo motor 31 drives the output shaft 32 to start from the Fig.11 The position shown rotates counterclockwise, the output shaft 32 drives the gear 33 to rotate, the gear 33 drives the rack 34 to move, the rack 34 drives the connecting rod 35 to move, the connecting rod 35 drives the fixed block 36 to move, and the fixed block 36 drives the left scraper 39 to move;

[0061] At the same time, the output shaft 32 drives the winding wheel 310 to rotate, and the winding wheel 310 drives one of the connecting ropes 311 to move, so that the connecting rope 311 can be wound on the winding wheel 310, and the connecting rope 311 drives the protrusion 313 to move downward, and the protrusion 313 drives the sliding rod 314 to move, so that the sliding rod 314 drives the side scraper 317 to move downward. Fig.11 The position shown moves downward, and at the same time, the fixed block 36 drives the guide rod 320 to move, and the guide rod 320 drives the right scraper 318 to move, so that the right scraper 318, the left scraper 39, and the side scraper 317 can move synchronously;

[0062] When the rack 34 and the gear 33 are about to be out of mesh, the control panel 12 controls the servo motor 31 to switch the rotation direction, so that the left scraper 39 and the right scraper 318 are moved to the left and right directions. Fig.11 The position shown in FIG. 1 is reset, and at the same time, the reel 310 reels another connecting rope 311, and the previous connecting rope 311 is released from the reel 310, so that the side scraper 317 can be moved from the bottom to the top. Fig.11 The position shown is reset, so that the left scraper 39, the right scraper 318 and the side scraper 317 scrape the surface of the cutting head 27 to scrape off the plastic debris that is cut and attached to the surface of the cutting head in a molten state;

[0063] When the driving motor 22 stops and prepares to switch the cutting head 27, the control panel 12 controls the magnetism of the electromagnet 2 37 and the electromagnet 321 to switch after being energized, so that the electromagnet 2 37 and the magnet 2 38 are attracted to each other, and the electromagnet 321 and the magnet 319 are attracted to each other, so that the left scraper 39 is retracted into the fixed block 36, and the right scraper 318 moves to the side away from the fixed block 36. Then the control panel 12 controls the electric telescopic rod 2 to move to switch the cutting head 27.

[0064] Embodiment 3, the technical solution of this embodiment is different from that of embodiment 2 and includes: the maintenance component also includes: an arc block 4, a movable rod 41, a piston 42, a pressure box 43, a connecting pipe 44, an air pipe 45, and a nozzle 46; the arc block 4 is fixedly penetrated on the output shaft 32, a movable rod 41 is slidably penetrated in the arc block 4, a piston 42 is fixedly installed on one end of the movable rod 41, a pressure box 43 is slidably connected to the side wall of the piston 42, the inner wall of the side where the piston 42 contacts the pressure box 43 is sealed, the top of the pressure box 43 is fixedly installed on the bottom of the support plate 3, the pressure box 43 is divided into two inner chambers and the two inner chambers are connected by a connecting pipe 44, an air pipe 45 is fixedly installed on one of the inner chambers of the pressure box 43, the other end of the air pipe 45 is fixed at the air inlet of the nozzle 46, and the air outlet of the nozzle 46 is tilted upward facing the cutting head 27.

[0065] When in use, while the output shaft 32 drives the maintenance assembly to operate, the output shaft 32 drives the arc block 4 to move from the Fig.11 The position shown rotates counterclockwise, the arc block 4 drives the movable rod 41 to move, and the movable rod 41 drives the piston 42 to move, and the movement of the piston 42 causes the air in the inner cavity 1 of the pressure box 43 to enter the inner cavity 2 through the connecting pipe 44, and the air in the inner cavity 2 increases, and then the air in the inner cavity 2 is ejected from the nozzle 46 through the air pipe 45, thereby cooling the cutting head 27 being maintained;

[0066] The output shaft 32 drives the arc block 4 to rotate clockwise. Fig.11 When the position shown is reset, the piston 42 just moves from the farthest point from the arc block 4 to Fig.11 The position shown is reset so that no matter whether the output shaft 32 rotates clockwise or counterclockwise, the spray head 46 can always spray air to cool the cutting bit 27 that is undergoing maintenance work.

[0067] The present invention also provides a cutting method of a cutting device for processing automobile air-conditioning plastic parts, comprising the following steps:

[0068] S1, placing the plastic parts to be cut on the placement table 13;

[0069] S2, controlling the cutting assembly to perform cutting processing on the plastic parts through the control panel 12;

[0070] S3, control the switching of the cutting head 27 in the cutting assembly through the control panel 12 and maintain the cutting head 27 through the maintenance assembly, the time required for switching the cutting head 27 is between 7 and 10 seconds;

[0071] S4, taking the cut plastic part off from the placement table 13 and placing the next plastic part to be processed.

[0072] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0073] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0074] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cutting device for processing automobile air conditioner plastic parts, comprising a housing (1), and a cutting head (27) arranged in the housing (1) for cutting automobile air conditioner plastic parts, characterized in that: An electric push rod (14) is fixed in the housing (1), a placement table (13) for placing plastic parts to be processed is fixed at one end of the electric push rod (14), a control panel (12) is fixed on the housing (1), an observation window (11) is provided on the housing (1), a cutting assembly for cutting automobile air-conditioning plastic parts and a maintenance assembly for maintaining the flatness of a cutting tool head (27) are arranged in the housing (1), and the cutting assembly comprises: A support column (26) having one end detachably connected to a cutting head (27) for providing support force to the cutting head (27), a lower magnetic chuck (25) being fixed to the other end of the support column (26), and a support ring (29) being movably mounted on the side wall of the support column (26) via a bearing; An upper magnetic chuck (24) is magnetically attracted to the lower magnetic chuck (25) and is combined with the lower magnetic chuck (25) to form a whole, a rotating shaft (23) is fixed to the top of the upper magnetic chuck (24), a driving motor (22) is fixed to one end of the rotating shaft (23), a supporting rod (21) is fixed to the side wall of the driving motor (22) through a motor box, and the top of the supporting rod (21) is fixed to the top of the inner wall of the housing (1) through an electric telescopic rod (2); The maintenance component comprises a support plate (3) for providing support for the maintenance component, a connecting rod (35) is slidably penetrated in the support plate (3), a fixing block (36) is fixed at one end of the connecting rod (35), a left scraper (39) is slidably mounted in the fixing block (36), and one end of the left scraper (39) is slidably abutted against the cutting head (27).

2. A cutting device for processing automobile air-conditioning plastic parts according to claim 1, characterized in that: A support rod 2 (28) is slidably inserted into the support ring (29), one end of the support rod 2 (28) is fixed to the top of the inner wall of the shell (1), a support rod 3 (210) is fixed to the bottom of the support rod 1 (21), an electromagnet 1 (211) is fixed to the bottom of the support rod 3 (210), a push rod (214) is slidably sleeved on the support rod 3 (210), a spring 1 (212) is fixed to one end of the push rod (214), the other end of the spring 1 (212) is fixed to the support rod 3 (210), a slider (215) is fixed to the support ring (29), one end of the push rod (214) is slidably abutted against the spirally arranged slider (215), and a magnet 1 (213) is fixed to the bottom of the push rod (214).

3. The cutting device for processing automobile air-conditioning plastic parts according to claim 1, characterized in that: The support plate (3) is located below the cutting head (27); a servo motor (31) is fixed to the bottom of the support plate (3) via a motor seat; an output shaft (32) is fixed to the output end of the servo motor (31); a gear (33) is fixed to one end of the output shaft (32); a rack (34) is meshed on the gear (33); and the top of the rack (34) is fixedly connected to the bottom of a connecting rod (35).

4. A cutting device for processing automobile air-conditioning plastic parts according to claim 3, characterized in that: A second magnet (38) is fixed on the side wall of the left scraper (39), a second electromagnet (37) is fixed in the fixed block (36), a winding wheel (310) is passed through the output shaft (32), a connecting rope (311) is fixed on the winding wheel (310), a guide wheel (312) is abutted on the connecting rope (311), a protrusion (313) is fixed on one end of the connecting rope (311), a sliding rod (314) is fixed on one end of the protrusion (313), a right scraper (318) is slidably connected to the side wall of the sliding rod (314), a fixing plate is fixed on the bottom of the right scraper (318), a third magnet (319) is fixed on the bottom of the fixing plate, and the third magnet (319) is slidably passed through the support plate (3).

5. A cutting device for processing automobile air-conditioning plastic parts according to claim 4, characterized in that: An electromagnet (321) is fixed inside the support plate (3), a guide rod (320) is fixed on the side wall of the magnet (319), one end of the guide rod (320) is fixed to the bottom of the fixed block (36), and the side wall of the guide rod (320) is slidably inserted into the fixed plate.

6. The cutting device for processing automobile air-conditioning plastic parts according to claim 4, characterized in that: A sliding sleeve (315) is provided on the sliding rod (314), a side scraper (317) is fixed to one end of the sliding sleeve (315), one end of the side scraper (317) abuts against the side wall of the cutting bit (27), a spring (316) is fixed to one end of the sliding sleeve (315), and the other end of the spring (316) is fixed to the sliding rod (314).

7. The cutting device for processing automobile air-conditioning plastic parts according to claim 1, characterized in that: The maintenance component also includes an arc block (4) fixedly inserted on the output shaft (32), a movable rod (41) slidably inserted in the arc block (4), a piston (42) fixed at one end of the movable rod (41), and a pressure box (43) slidably connected to the side wall of the piston (42).

8. The cutting device for processing automobile air-conditioning plastic parts according to claim 7, characterized in that: The top of the pressure box (43) is fixed to the bottom of the support plate (3); the pressure box (43) is divided into two inner cavities and the two inner cavities are connected via a connecting pipe (44); an air pipe (45) is fixed to the pressure box (43); a nozzle (46) is fixed to the other end of the air pipe (45).

9. A cutting method for a cutting device for processing automobile air-conditioning plastic parts according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, placing the plastic parts to be cut on a placement table (13); S2, controlling the cutting assembly to perform cutting processing on the plastic parts through the control panel (12); S3, controlling the switching of the cutting head (27) in the cutting assembly through the control panel (12) and maintaining the cutting head (27) through the maintenance assembly; S4, removing the cut plastic part from the placement table (13) and placing the next plastic part to be processed.

10. The cutting method of a cutting device for processing automobile air-conditioning plastic parts according to claim 9, characterized in that: The time required to switch the cutting bit (27) in the cutting assembly is between 7 and 10 seconds.

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