An automatic rotary compression port cutting device for elevator air conditioner body

Abstract

The present application belongs to the technical field of pipe processing, and particularly relates to an automatic spinning and cutting equipment for a compressor body of an elevator air conditioner, comprising a base, an electric clamp jaw on one side of the upper end of the base, and further comprising a spinning and cutting mechanism, a positioning and polishing mechanism, a single-feeding-amount control mechanism, a feeding speed feedback control mechanism, a polishing pressure feedback control mechanism, and a polishing time length automatic adjustment mechanism. The present application can automatically control the single-feeding-amount according to the spinning and cutting resistance, the greater the resistance, the smaller the feeding amount, so as to avoid the deformation and uneven cutting of the hard pipe due to the excessive feeding amount, and to improve the spinning and cutting quality. The feeding speed can be automatically adjusted according to the resistance, the greater the resistance, the slower the speed, so as to prevent the size deviation of the workpiece due to the excessive speed, and to ensure the machining precision. The workpiece end part can be automatically polished after spinning and cutting, so as to improve the production continuity and efficiency, and the polishing pressure and time length can be automatically adjusted according to the workpiece characteristics, so as to ensure the polishing quality.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of pipe processing, and particularly relates to an automatic spinning and cutting device for an elevator air conditioner body. BACKGROUND

[0002] The steel pipe body of an oil separator, a silencer and a liquid accumulator in an air conditioner is usually formed by rolling a steel plate into a cylinder and then welding the cylinder, and the two ends of the cylinder are then spun to form a neck. When the weld of the cylinder is spun, the thickness of the weld is found to be slightly thinned, so that pinhole phenomenon often occurs. The longer the neck, the more frequent the pinhole phenomenon. Therefore, the neck after spinning needs to be cut to a certain size to avoid leakage of the body part during use. Patent No. CN111687641B discloses an automatic spinning and cutting device for an air conditioner body.

[0003] In the current spinning and cutting process, the feed amount and the feed speed of spinning and cutting are fixed. However, due to the different characteristics of the pipe to be spun and cut, the spinning force and the cutting force that the pipe can withstand are different. The harder the pipe, the greater the spinning force and the cutting force required. However, this also increases the extrusion force on the pipe and increases the plastic deformation of the material. In order to avoid excessive deformation of the pipe, cracks or other defects on the surface of the pipe, the feed amount needs to be reduced so that the pipe can uniformly deform under a large pressure to ensure the quality of spinning. In addition, a smaller feed amount can also stabilize the friction between the spinning wheel and the pipe, which is conducive to controlling the force and deformation during spinning and further improving the dimensional accuracy and surface quality of the product. However, the fixed spinning and cutting feed speed currently used has an impact on the quality of spinning and cutting of the pipe, and after cutting, the pipe needs to be moved to the polishing mechanism and then polished by the polishing mechanism, which results in discontinuous production and affects production efficiency. SUMMARY

[0004] The purpose of the present application is to provide an automatic spinning and cutting device for an elevator air conditioner body.

[0005] To achieve the above purpose, the following technical scheme is adopted: an automatic spinning and cutting device for an elevator air conditioner body, comprising a base, an electric clamp jaw on one side of the upper end of the base, and further comprising:

[0006] A spinning and cutting mechanism is arranged at the upper end of the base.

[0007] A positioning and polishing mechanism is fixedly arranged at the upper end of the base and arranged on one side of the spinning and cutting mechanism.

[0008] The single-feeding amount control mechanism is fixedly arranged at the upper end of the spinning cutting mechanism and is in transmission connection with the spinning cutting mechanism.

[0009] The feeding speed feedback control mechanism is arranged in the single-feeding amount control mechanism.

[0010] The polishing pressure feedback control mechanism is arranged on the positioning polishing mechanism.

[0011] The polishing time length automatic adjustment mechanism is arranged on the positioning polishing mechanism.

[0012] In the automatic spinning mouth cutting device of the elevator air conditioner body, the spinning cutting mechanism comprises a first electric sliding rail fixedly arranged at the upper end of the base, a support frame is fixedly arranged at the upper end of the sliding block in the first electric sliding rail, a support frame is fixedly arranged at the upper end of the support frame, a rotating screw is rotationally connected to the rear side of the inner wall of the support frame, a servo motor for driving the rotating screw to rotate is fixedly arranged at the lower end of the support frame, a lifting frame is threadedly sleeved on the rod wall of the rotating screw, a spinning wheel is fixedly arranged at the lower side of the inner wall of the lifting frame, and a cutting knife is fixedly arranged at the upper side of the inner wall of the lifting frame.

[0013] In the automatic spinning mouth cutting device of the elevator air conditioner body, the positioning polishing mechanism comprises a second electric sliding rail fixedly arranged at the upper end of the base, a moving frame is fixedly arranged at the upper end of the sliding block in the second electric sliding rail, a positioning seat is fixedly arranged on the side wall of the moving frame, a deflection seat is rotationally connected to the upper end of the inner part of the positioning seat through a rotating shaft, a deflection motor for driving the deflection seat to rotate is fixedly arranged on the outer wall of the positioning seat, an outward expansion plate is fixedly arranged at one end of the deflection seat, a center rod is fixedly connected to the center of the side wall of the outward expansion plate, and a polishing plate of an annular structure is fixedly arranged on the side wall of the outward expansion plate.

[0014] In the automatic spinning mouth cutting equipment of the elevator air conditioner body, the single feed amount control mechanism comprises a plurality of electric telescopic rods symmetrically fixed on the upper end of the support frame, the upper end of the plurality of electric telescopic rods is fixedly connected with the same cover, the upper end of the rotating screw rod penetrates through the upper end of the support frame and is fixedly connected with a permanent magnet, the upper end of the cover is rotatably sleeved with a transmission shaft, the lower end of the transmission shaft is fixedly provided with an electromagnetic block magnetically connected with the permanent magnet, the cover is further fixedly provided with a speed increasing gear box and a control shell, the lower end input end of the speed increasing gear box is fixedly connected with the upper end of the transmission shaft, the inner wall of the control shell is rotatably connected with a linkage screw rod on the lower side, one end of the linkage screw rod is in transmission connection with the output end of the speed increasing gear box through a bevel gear assembly, the inner wall of the control shell is further fixedly provided with a plurality of guide sliding rods arranged in parallel with the linkage screw rod, the same trigger plate is slidably sleeved outside the plurality of guide sliding rods, a plurality of reset springs are fixedly arranged on the opposite side of the trigger plate and the control shell and are sleeved outside the guide sliding rods, the lower end of the trigger plate is fixedly connected with a mounting plate, the mounting plate is symmetrically fixedly sleeved with two micro electric push rods, the lower end of the two micro electric push rods is fixedly connected with the same arc threaded plate in threaded connection with the linkage screw rod, the upper side of the inner wall of the control shell is rotatably connected with an adjusting screw rod, the outer wall of the control shell is fixedly provided with an adjusting motor for driving the rotation of the adjusting screw rod, the rod wall of the adjusting screw rod is threadedly sleeved with an adjusting plate, and the side wall of the adjusting plate is fixedly provided with a trigger switch arranged opposite to the trigger plate.

[0015] In the automatic spinning mouth cutting equipment of the elevator air conditioner body, the feed speed feedback regulation mechanism comprises a feedback resistance rod fixedly arranged on the upper side of the inner wall of the control shell, the feedback resistance rod is arranged in parallel with the adjusting screw rod, and the upper end of the adjusting plate is fixedly provided with a feedback conductive tab in electrical contact with the feedback resistance rod.

[0016] In the automatic spinning mouth cutting equipment of the elevator air conditioner body, the polishing pressure feedback regulation mechanism comprises a U-shaped fixed plate fixedly arranged on one side of the moving frame, a plurality of limiting sliding rods are fixedly connected to the inner wall of the U-shaped fixed plate, a plurality of sliding holes are formed in the lower end side wall of the positioning seat and are slidably sleeved with the limiting sliding blocks, a plurality of retaining springs are fixedly arranged on the opposite side of the U-shaped fixed plate and the positioning seat and are sleeved outside the limiting sliding rods, and a pressure sensing plate is fixedly arranged on the rear side of the vertical portion of the U-shaped fixed plate and is arranged opposite to the positioning seat.

[0017] In the automatic spinning mouth cutting equipment of the elevator air conditioner body, the polishing time automatic adjusting mechanism comprises a confirmation cylinder, a middle shaft is rotationally connected at the center of the inner wall of the confirmation cylinder, a speed reducer motor for driving the self-rotation of the middle shaft is fixedly arranged on the outer wall of the confirmation cylinder, a stop switch is fixedly arranged on one side of the inner wall of the confirmation cylinder, and an arc-shaped pressing block corresponding to the position of the stop switch is fixedly arranged on the shaft wall of the middle shaft.

[0018] In the automatic spinning mouth cutting equipment of the elevator air conditioner body, a cutting groove is formed in the center rod, and the cutting groove is in an annular structure.

[0019] Compared with the prior art, the beneficial effects of the present application are that:

[0020] The spinning cutting mechanism and the single-feeding amount control mechanism are provided, the single-feeding amount of spinning and cutting can be automatically adjusted based on the resistance in the spinning cutting process, the greater the resistance, the smaller the single-feeding amount, the hard pipe is prevented from being subjected to excessive stress under the action of the spinning wheel and the cutting knife due to high hardness and relatively difficult deformation, and the spinning cutting quality is effectively improved.

[0021] The feeding speed feedback control mechanism is provided, the feeding speed of spinning and cutting can be automatically adjusted based on the resistance in the spinning cutting process, the greater the resistance, the slower the feeding speed, because the greater resistance will cause a large deformation force of the workpiece, and if the feeding speed is too fast, the workpiece cannot be sufficiently stabilized and constrained in the deformation process, and size deviation is prone to occur, affecting the machining precision.

[0022] The positioning and polishing mechanism, the polishing pressure feedback control mechanism and the polishing time automatic adjusting mechanism are provided, the end of the workpiece can be automatically polished after the spinning and cutting of the workpiece are completed, the production continuity is effectively improved, the production efficiency is improved, and the polishing pressure and the polishing time are automatically adjusted based on the characteristics of the workpiece, the polishing pressure and the polishing time are automatically increased when the hardness of the workpiece is greater, the required polishing effect is ensured, and the polishing quality is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a perspective structural schematic diagram of the present application;

[0024] Figure 2 is a front view structural schematic diagram of the present application;

[0025] Figure 3 is a structural schematic diagram of the spinning cutting mechanism of the present application;

[0026] Figure 4is a structural schematic view of the positioning and polishing mechanism of the present application;

[0027] Figure 5 is a sectional view of the single-feeding amount control mechanism of the present application;

[0028] Figure 6 is Figure 5 is a partially enlarged structural schematic view;

[0029] Figure 7 is a structural schematic view of the feeding speed feedback control mechanism of the present application;

[0030] Figure 8 is a structural schematic view of the polishing pressure feedback control mechanism of the present application;

[0031] Figure 9 is a structural schematic view of the polishing time automatic adjustment mechanism of the present application.

[0032] In the figure: 1 base, 2 rotary pressure cutting mechanism, 21 first electric sliding rail, 22 support frame, 23 support frame, 24 rotating screw, 25 servo motor, 26 lifting frame, 27 rotary wheel, 28 cutting knife, 3 positioning and polishing mechanism, 31 second electric sliding rail, 32 moving frame, 33 positioning seat, 34 deflection seat, 35 deflection motor, 36 outer expansion plate, 37 center rod, 38 polishing plate, 39 cutting groove, 4 single-feeding amount control mechanism, 41 electric telescopic rod, 42 cover, 43 permanent magnet block, 44 transmission shaft, 45 electromagnetic block, 46 speed increasing gear box, 47 control shell, 48 linkage screw, 49 bevel gear assembly, 410 guide sliding rod, 411 trigger plate, 412 return spring, 413 mounting plate, 414 micro electric push rod, 415 arc threaded plate, 416 adjustment screw, 417 adjustment motor, 418 adjustment plate, 419 trigger switch, 5 feeding speed feedback control mechanism, 51 feedback resistance rod, 52 feedback conductive tab, 6 polishing pressure feedback control mechanism, 61 U-shaped fixed plate, 62 limit sliding rod, 63 retaining spring, 64 pressure sensing plate, 7 polishing time automatic adjustment mechanism, 71 confirmation round shell, 72 intermediate shaft, 73 speed reducer motor, 74 stop switch, 75 arc-shaped pressing block, 8 electric clamping jaw. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application.

[0034] As Figures 1-9 shown, an automatic rotary pressure neck cutting device for an elevator air conditioner body comprises a base 1, an electric clamping jaw 8 on one side of the upper end of the base 1, and further comprises:

[0035] The spinning cutting mechanism 2 is arranged at the upper end of the base 1, and the spinning cutting mechanism 2 comprises a first electric sliding rail 21 fixedly arranged at the upper end of the base 1. The upper end of the sliding block in the first electric sliding rail 21 is fixedly arranged with a support frame 22. The upper end of the support frame 22 is fixedly arranged with a support frame 23. The rear side of the inner wall of the support frame 23 is rotationally connected with a rotating screw 24. The lower end of the support frame 23 is fixedly arranged with a servo motor 25 for driving the rotating screw 24 to rotate. The rod wall of the rotating screw 24 is threadedly sleeved with a lifting frame 26. The inner wall of the lifting frame 26 is fixedly arranged with a spinning wheel 27 at the lower side. The inner wall of the lifting frame 26 is fixedly arranged with a cutting knife 28 at the upper side.

[0036] The positioning polishing mechanism 3 is fixedly arranged at the upper end of the base 1 and is arranged on one side of the spinning cutting mechanism 2. The positioning polishing mechanism 3 comprises a second electric sliding rail 31 fixedly arranged at the upper end of the base 1. The upper end of the sliding block in the second electric sliding rail 31 is fixedly arranged with a moving frame 32. The side wall of the moving frame 32 is fixedly arranged with a positioning seat 33. The upper end of the positioning seat 33 is rotationally connected with a deflection seat 34 through a rotating shaft. The outer wall of the positioning seat 33 is fixedly arranged with a deflection motor 35 for driving the deflection seat 34 to rotate. One end of the deflection seat 34 is fixedly arranged with an outward expansion plate 36. The center rod 37 is fixedly connected with the center of the side wall of the outward expansion plate 36. The side wall of the outward expansion plate 36 is also fixedly arranged with a polishing plate 38 of annular structure. The center rod 37 is provided with a cutting groove 39, and the cutting groove 39 is arranged in an annular structure.

[0037] The single-feeding amount control mechanism 4 is fixedly arranged at the upper end of the spinning cutting mechanism 2 and is in transmission connection with the spinning cutting mechanism 2. The single-feeding amount control mechanism 4 comprises a plurality of electric telescopic rods 41 which are symmetrically fixedly sleeved on the upper end of the support frame 23. The upper end moving end of the plurality of electric telescopic rods 41 is fixedly connected with the same cover shell 42. The upper end of the rotating screw rod 24 penetrates through the upper end of the support frame 23 and is fixedly connected with a permanent magnet block 43. The upper end of the cover shell 42 is rotatably sleeved with a transmission shaft 44. The lower end of the transmission shaft 44 is fixedly arranged with an electromagnetic block 45 which is magnetically connected with the permanent magnet block 43. The cover shell 42 is further fixedly arranged with a speed increasing gear box 46 and a control shell 47. The lower end input end of the speed increasing gear box 46 is fixedly connected with the upper end of the transmission shaft 44. The inner wall lower side of the control shell 47 is rotatably connected with a linkage screw rod 48. One end of the linkage screw rod 48 is in transmission connection with the output end of the speed increasing gear box 46 through a bevel gear assembly 49. The inner wall of the control shell 47 is further fixedly arranged with a plurality of guide sliding rods 410 which are arranged in parallel with the linkage screw rod 48. The plurality of guide sliding rods 410 are slidably sleeved with the same trigger plate 411. The opposite side of the trigger plate 411 and the control shell 47 is fixedly arranged with a plurality of return springs 412 which are sleeved on the guide sliding rods 410. The lower end of the trigger plate 411 is fixedly connected with a mounting plate 413. The mounting plate 413 is symmetrically fixedly sleeved with two micro electric push rods 414. The lower end moving end of the two micro electric push rods 414 is fixedly connected with the same arc-shaped screw plate 415 which is in screw connection with the linkage screw rod 48. The upper side of the inner wall of the control shell 47 is rotatably connected with an adjusting screw rod 416. The outer wall of the control shell 47 is fixedly arranged with an adjusting motor 417 for driving the adjusting screw rod 416 to rotate. The rod wall of the adjusting screw rod 416 is threadedly sleeved with an adjusting plate 418. The side wall of the adjusting plate 418 is fixedly arranged with a trigger switch 419 which is arranged opposite to the trigger plate 411.

[0038] The feeding speed feedback control mechanism 5 is arranged in the single-feeding amount control mechanism 4. The feeding speed feedback control mechanism 5 comprises a feedback resistance rod 51 which is fixedly arranged on the upper side of the inner wall of the control shell 47. The feedback resistance rod 51 is arranged in parallel with the adjusting screw rod 416. The upper end of the adjusting plate 418 is fixedly arranged with a feedback conductive tab 52 which is in electrical contact with the feedback resistance rod 51.

[0039] The polishing pressure feedback control mechanism 6 is arranged on the positioning polishing mechanism 3. The polishing pressure feedback control mechanism 6 comprises a U-shaped fixed plate 61 which is fixedly arranged on one side of the moving frame 32. The inner wall of the U-shaped fixed plate 61 is fixedly connected with a plurality of limiting sliding rods 62. The lower end side wall of the positioning seat 33 is provided with a plurality of sliding holes which are slidably sleeved with the limiting sliding rods. A plurality of retaining springs 63 are fixedly arranged on the opposite side of the U-shaped fixed plate 61 and the positioning seat 33 and are sleeved on the limiting sliding rods 62. The rear side of the vertical part of the U-shaped fixed plate 61 is fixedly arranged with a pressure sensing plate 64 which is arranged opposite to the positioning seat 33.

[0040] The polishing time automatic adjusting mechanism 7 is arranged on the positioning polishing mechanism 3, and comprises a confirmation cylinder 71, a middle shaft 72 rotatably connected to the center of the inner wall of the confirmation cylinder 71, a speed reducer motor 73 arranged on the outer wall of the confirmation cylinder 71 and used for driving the self-rotation of the middle shaft 72, a stop switch 74 arranged on one side of the inner wall of the confirmation cylinder 71, and an arc-shaped pressing block 75 arranged on the shaft wall of the middle shaft 72 and corresponding to the position of the stop switch 74.

[0041] The operation principle of the application is described as follows: the workpiece to be processed is fixed by the electric clamping jaw 8 and extended into the lifting frame 26, the second electric sliding rail 31 is started first, the second electric sliding rail 31 drives the center rod 37 to move, so that the center rod 37 is extended into the inner center position of the workpiece, the electric clamping jaw 8 is provided with a rotating function and can drive the workpiece to rotate at high speed (this is prior art, but it is not described in detail here), then the PLC controller controls the servo motor 25 to rotate forward first, the servo motor 25 drives the rotating screw 24 to rotate forward, the rotating screw 24 and the lifting frame 26 are threadedly connected, so that the lifting frame 26 moves upward, and the spinning wheel 27 first abuts against the lower side of the workpiece, the servo motor 25 is provided with a torque sensor, when the hardness of the workpiece is greater, the abutting pressure of the spinning wheel 27 on the workpiece needs to be greater, so that the spinning wheel 27 moves relative to the workpiece, and the workpiece is necked, when the torque sensor in the servo motor 25 reaches the initial threshold value, it indicates that the spinning wheel 27 has contacted the workpiece, and the spinning wheel 27 needs to continue to advance to complete the necking work, at this time, the PLC controller controls the power supply device to supply power to the electromagnetic block 45, the electromagnetic block 45 generates a magnetic property opposite to that of the permanent magnet block 43, so that the rotating screw 24 and the transmission shaft 44 are relatively connected together, when the servo motor 25 drives the rotating screw 24 to rotate, the transmission shaft 44 synchronously rotates, the transmission shaft 44 feeds back the rotating degree to the linkage screw 48 through the speed increasing gear box 46 and the bevel gear assembly 49, at this time, the micro electric push rod 414 pushes the arc-shaped threaded plate 415 to move downward, so that the arc-shaped threaded plate 415 and the linkage screw 48 are threadedly connected together, so that the linkage screw 48 drives the arc-shaped threaded plate 415 and the trigger plate 411 to move in the control shell 47, and the PLC controller controls the adjusting motor 417 to work based on the maximum torque information of the torque sensor when the servo motor 25 drives the rotating screw 24 to rotate, specifically, when the hardness of the workpiece is greater, the abutting pressure of the spinning wheel 27 on the workpiece is greater, the torque signal monitored by the torque sensor is greater, the PLC controller controls the adjusting motor 417 to act for a longer time, the adjusting motor 417 drives the adjusting screw 416 to rotate, the adjusting screw 416 and the adjusting plate 418 are threadedly connected, so that the adjusting plate 418 drives the trigger switch 419 to move a greater distance, so that the interval distance between the trigger switch 419 and the trigger plate 411 is smaller, here, the control of the adjusting motor 417 to adjust is based on the torque signal of the torque sensor in the servo motor 25 in the first necking work, the positions of the adjusting plate 418 and the trigger switch 419 are kept unchanged subsequently, so that when the single feeding amount of the spinning wheel 27 on the workpiece is smaller, the trigger plate 411 presses the trigger switch 419, at this time, it indicates that the single feeding amount of the spinning wheel 27 reaches the standard, the PLC controller controls the servo motor 25 to stop first, and controls the first electric sliding rail 21 to act, the first electric sliding rail 21 drives the spinning wheel 27 to move laterally, and the end wall of the workpiece is necked.

[0042] When the first electric sliding rail 21 drives the spinning wheel 27 to complete the first necking work, at this time the PLC controller first controls the micro electric push rod 414 to mobilize the arc threaded plate 415 to move up, so that the arc threaded plate 415 is disconnected with the linkage screw rod 48, under the action of the reset spring 412, the trigger plate 411 is reset to the initial position along the guide slide rod 410, and after 5s of waiting to confirm that the trigger plate 411 remains stable, the PLC controller controls the micro electric push rod 414 to drive the arc threaded plate 415 to move down again, so that the arc threaded plate 415 is connected with the linkage screw rod 48 again, at this time the PLC controller controls the servo motor 25 to rotate forward again, and then pushes the spinning wheel 27 to perform necking work, when the necking is up to standard, the inner wall of the workpiece will be in close contact with the center rod 37, which means that the necking size is up to standard, at this time when the trigger plate 411 does not press on the trigger switch 419, due to the continuous work of the servo motor 25, the torque signal detected by the torque sensor in the servo motor 25 will further increase, and when it reaches the preset threshold value, it means that the workpiece cannot continue to neck, at this time the PLC controller controls the servo motor 25 to stop working, and drives the first electric sliding rail 21 to drive the spinning wheel 27 to act for the last time, and completes the final necking work;

[0043] And when the workpiece hardness is greater, the resistance suffered by the spinning wheel 27 is greater, the moving distance of the adjusting plate 418 is greater, which further drives the feedback conductive tab 52 to slide on the feedback resistance rod 51 for a greater distance, thereby making the feedback resistance rod 51 have a greater access resistance, and the feedback conductive tab 52 and the feedback resistance rod 51 are connected in series in the power supply circuit of the servo motor 25 and the first electric sliding rail 21, thereby making the working power of the servo motor 25 and the first electric sliding rail 21 smaller, and the feeding speed of the spinning wheel 27 slower, ensuring the stable processing of the workpiece, because the greater resistance will cause the workpiece to generate a greater deformation force, if the feeding speed is too fast, the workpiece cannot be fully stable and constrained during deformation, which is easy to cause size deviation and affect the processing precision;

[0044] After the spinning work is completed, the PLC controller controls the first electric slide rail 21 to drive the cutting knife 28 to move, so that the cutting knife 28 moves to a position opposite to the cutting groove 39 on the center rod 37. The PLC controller controls the servo motor 25 to rotate at a large power until the torque sensor in the servo motor 25 feeds back torque information reaching the initial threshold value, indicating that the cutting knife 28 is in contact with the workpiece. At this time, the PLC controller controls the servo motor 25 to be connected to the power supply circuit in series with the feedback conductive tab 52 and the feedback resistance rod 51, so that the cutting knife 28 cuts the workpiece at a slow and matched feed speed. After the cutting knife 28 moves to the final displacement, that is, the cutting knife 28 enters the cutting groove 39, indicating that the workpiece is cut off. At this time, the PLC controller controls the first electric slide rail 21 to drive the entire spinning cutting mechanism 2 to move to the right, and the cut-off part of the workpiece is pushed on the center rod 37. The PLC controller controls the second electric slide rail 31 to drive the center rod 37 to move backward until the center rod 37 moves out of the workpiece. The PLC controller controls the deflection motor 35 to work, and the deflection motor 35 drives the deflection seat 34 to rotate to the rear side, so that the center rod 37 is inclined backward. The weight of the cut-off workpiece makes the workpiece slide off the center rod 37. Since the surface of the center rod 37 is sprayed with a sliding agent, the frictional resistance of the surface of the center rod 37 is small, so that the cut-off workpiece can slide off smoothly.

[0045] The PLC controller reverses the deflection motor 35 again, so that the center rod 37 moves to the initial position. The PLC controller controls the second electric slide rail 31 to drive the positioning and polishing mechanism 3 to move again, so that the center rod 37 moves into the workpiece again, and the polishing plate 38 abuts against the end of the workpiece. Since the workpiece is still in a high-speed rotation state, the end of the workpiece can be effectively polished by the polishing plate 38. The pressure size fed back by the positioning seat 33 to the pressure sensing plate 64 can represent the polishing pressure size. The PLC controller controls the second electric slide rail 31 to stop the advancing action after the pressure sensing plate 64 reaches the polishing pressure threshold value based on the access resistance value information fed back by the feedback resistance rod 51. Specifically, the greater the access resistance value of the feedback resistance rod 51, the greater the hardness of the workpiece, and the greater the polishing pressure threshold value set by the PLC controller based on the pressure sensing plate 64, that is, the greater the polishing pressure.

[0046] And in the polishing work, the PLC controller synchronously controls the operation of the reduction motor 73, the reduction motor 73 drives the intermediate shaft 72 to rotate, and then drives the arc-shaped pressing block 75 to move in the confirmation cylinder 71, until the arc-shaped pressing block 75 presses on the stop switch 74, indicating that the polishing time is up to standard, the polishing work is completed, and the feedback conducting piece 52 and the feedback resistance rod 51 are connected in series on the power supply circuit of the reduction motor 73, and the reduction motor 73 is a direct current motor, when the hardness of the workpiece is greater, the resistance value of the feedback resistance rod 51 is greater, the supply current of the reduction motor 73 is smaller, the speed of the reduction motor 73 is slower, and then the arc-shaped pressing block 75 needs to press on the stop switch 74 for a longer time, so that the polishing time is longer, the molecular structure of the material of the workpiece with high hardness is more compact, and the strength is higher, when polishing, the grinding tool needs to overcome greater resistance to remove the material, and the amount of material removed by each polishing is relatively small, in order to achieve the required polishing effect, such as flatness, smoothness, etc., more polishing operations are required, thereby increasing the polishing time.

[0047] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An automatic rotary compression port cutting device for an elevator air conditioner body, comprising a base (1), an electric clamping claw (8) on one side of the upper end of the base (1), characterized in that: Also includes: A spinning cutting mechanism (2) is mounted on the upper end of the base (1); A positioning and grinding mechanism (3) is fixedly mounted on the upper end of the base (1) and is arranged on one side of the spinning and cutting mechanism (2); A single feed amount control mechanism (4) is fixedly mounted on the upper end of the spinning and cutting mechanism (2) and is in transmission connection with the spinning and cutting mechanism (2); A feed speed feedback control mechanism (5) is installed in the single feed amount control mechanism (4); A grinding pressure feedback control mechanism (6) is mounted on the positioning grinding mechanism (3); An automatic grinding time adjustment mechanism (7) is mounted on the positioning grinding mechanism (3); The spinning and cutting mechanism (2) comprises a first electric slide rail (21) fixedly mounted on the upper end of the base (1); a support frame (22) is fixedly mounted on the upper end of the slider in the first electric slide rail (21); a support frame (23) is fixedly mounted on the upper end of the support frame (22); a rotating screw (24) is rotatably connected to the rear side of the inner wall of the support frame (23); a servo motor (25) for driving the rotating screw (24) to rotate is fixedly mounted on the lower end of the support frame (23); a lifting frame (26) is threadedly sleeved on the rod wall of the rotating screw (24); a spinning wheel (27) is fixedly mounted on the lower side of the inner wall of the lifting frame (26); and a cutting knife (28) is fixedly mounted on the upper side of the inner wall of the lifting frame (26); The positioning and polishing mechanism (3) comprises a second electric slide rail (31) fixedly mounted on the upper end of the base (1); a movable frame (32) is fixedly mounted on the upper end of the slider in the second electric slide rail (31); a positioning seat (33) is fixedly mounted on the side wall of the movable frame (32); a deflection seat (34) is rotatably connected to the interior of the upper end of the positioning seat (33) via a rotating shaft; a deflection motor (35) for driving the deflection seat (34) to rotate is fixedly mounted on the outer wall of the positioning seat (33); an outer expansion plate (36) is fixedly mounted on one end of the deflection seat (34); a center rod (37) is fixedly connected to the center of the side wall of the outer expansion plate (36); and a polishing plate (38) with an annular structure is also fixedly mounted on the side wall of the outer expansion plate (36); The single feed amount control mechanism (4) comprises a plurality of electric telescopic rods (41) symmetrically fixedly inserted into the upper end of the support frame (23), the upper movable ends of the plurality of electric telescopic rods (41) are fixedly connected to the same cover (42), the upper end of the rotating screw (24) passes through the upper end of the support frame (23) and is fixedly connected to the permanent magnet (43), the upper end of the cover (42) is rotatably sleeved with a transmission shaft (44), and the lower end of the transmission shaft (44) is fixedly provided with an electric screw magnetically connected to the permanent magnet (43). The magnetic block (45) is further fixedly mounted on the outside of the cover shell (42) with a speed increasing gear box (46) and a control shell (47). The lower input end of the speed increasing gear box (46) is fixedly connected to the upper end of the transmission shaft (44). The lower side of the inner wall of the control shell (47) is rotatably connected with a linkage screw (48). One end of the linkage screw (48) is transmission-connected to the output end of the speed increasing gear box (46) through a bevel gear assembly (49). The inner wall of the control shell (47) is further fixedly mounted with a plurality of parallel screws (48) A guide slide bar (410) is provided, and a plurality of guide slide bars (410) are slidably sleeved with a same trigger plate (411) on the outside. A plurality of return springs (412) sleeved on the outside of the guide slide bar (410) are fixedly installed on one side opposite to the trigger plate (411) and the control housing (47). The lower end of the trigger plate (411) is fixedly connected to a mounting plate (413). Two micro electric push rods (414) are symmetrically fixedly sleeved on the mounting plate (413). The lower end moving end of the two micro electric push rods (414) A curved threaded plate (415) is fixedly connected to the linkage screw (48) and is threadedly connected to the control housing (47). An adjusting screw (416) is rotatably connected to the upper side of the inner wall of the control housing (47). An adjusting motor (417) for driving the adjusting screw (416) to rotate is fixedly installed on the outer wall of the control housing (47). An adjusting plate (418) is threadedly sleeved on the rod wall of the adjusting screw (416). A trigger switch (419) is fixedly installed on the side wall of the adjusting plate (418) and is arranged opposite to the trigger plate (411).

2. The automatic rotary compression port cutting device for an elevator air conditioner body according to claim 1, characterized in that: The feed speed feedback control mechanism (5) includes a feedback resistor rod (51) fixedly mounted on the upper side of the inner wall of the control housing (47), the feedback resistor rod (51) being arranged parallel to the adjusting screw (416), and a feedback conductive contact (52) in electrical contact with the feedback resistor rod (51) being fixedly mounted on the upper end of the adjusting plate (418).

3. The automatic rotary compression port cutting device for an elevator air conditioner body according to claim 1, characterized in that: The grinding pressure feedback control mechanism (6) includes a U-shaped fixed plate (61) fixedly mounted on one side of the movable frame (32), a plurality of limit slide bars (62) being fixedly connected to the inner wall of the U-shaped fixed plate (61), a plurality of sliding holes for slidingly engaging with the limit slide bars are opened on the lower side wall of the positioning seat (33), a plurality of retaining springs (63) sleeved on the outside of the limit slide bars (62) are fixedly mounted on the opposite side of the U-shaped fixed plate (61) and the positioning seat (33), and a pressure sensing plate (64) arranged opposite to the positioning seat (33) is fixedly mounted on the rear side of the vertical portion of the U-shaped fixed plate (61).

4. The automatic rotary compression port cutting device for an elevator air conditioner body according to claim 1, characterized in that: The automatic grinding time adjustment mechanism (7) comprises a confirmation circular shell (71), an intermediate shaft (72) is rotatably connected to the center of the inner wall of the confirmation circular shell (71), a reduction motor (73) for driving the intermediate shaft (72) to rotate is fixedly mounted on the outer wall of the confirmation circular shell (71), a stop switch (74) is fixedly mounted on one side of the inner wall of the confirmation circular shell (71), and an arc-shaped pressing block (75) corresponding to the position of the stop switch (74) is fixedly mounted on the shaft wall of the intermediate shaft (72).

5. The automatic rotary compression port cutting device for an elevator air conditioner body according to claim 1, characterized in that: A cutting groove (39) is provided on the central rod (37), and the cutting groove (39) is arranged in an annular structure.

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