Automatic flattening machine

Abstract

The invention discloses an automatic flattening machine which comprises a cutting mechanism, a feeding / retracting mechanism, a blowing mechanism, a visual positioning mechanism, a bottom plate, a slide carriage, a slider guide rail, a housing and a fixing flange, the fixing flange is mounted on the bottom plate, the visual positioning mechanism is mounted on the bottom plate, the slide carriage is mounted on the bottom plate through the slider guide rail, the feeding / retracting mechanism is mounted on the bottom plate, and the housing is mounted on the bottom plate. An output shaft of the feeding / retracting mechanism is connected with the slide carriage, the front-back movement of the slide carriage is controlled through the feeding / retracting mechanism, the blowing mechanism is installed on the cutting mechanism, the housing is installed on the bottom plate, and the cutting mechanism, the feeding / retracting mechanism, the blowing mechanism, the slide carriage and the sliding block guide rail are covered between the housing and the bottom plate. The cutting part of the cutting mechanism can penetrate through the housing to process the pipe; the requirement for the precision of external equipment is lowered, the pipe orifice can be automatically flattened, the efficiency is improved, the labor cost is reduced, and meanwhile the pipe orifice treatment quality and cleanliness are guaranteed.

Description

Technical Field

[0001] The invention relates to a flattening machine, in particular to an automatic flattening machine. Background Art

[0002] At present, the heat exchanger industry is the main industry source of tube sheets, and its tube diameter range is usually Φ16-Φ38.1, and the thickness is 2.5mm. There are also large tubes with diameters below φ89 such as boilers that require flat ends. Almost all heat exchangers must be flattened after the pipe layout is completed to meet the consistency requirements of automatic welding tube extension or tube flat ends. The market demand is huge. With the increase in usage, special flattening equipment is needed to ensure the consistency of tube extension.

[0003] Traditional flat-end machine products include pneumatic expansion technology, pneumatic rotation technology, lever-type feed, push knife technology, and mechanical cold pipe cutting technology. Most factories manually operate portable flat-end machines, or modify them with radial drills, which are bulky and inefficient, cannot meet market demand, and it is difficult to ensure the consistency of pipe mouth processing.

[0004] This flat-mouth machine has the following problems: (1) The existing nozzle processing equipment has a complex structure, is difficult to maintain, and is not conducive to the rapid replacement of cutting tools and other wearing parts; (2) The existing nozzle processing equipment has low positioning accuracy, which leads to technical problems such as unstable nozzle processing quality; (3) The existing pipe opening treatment equipment cannot effectively remove impurities such as iron filings inside the pipe opening after flattening, which affects the cleanliness of the pipe opening; (4) Existing pipe opening processing equipment basically relies on manual operation to complete the advance / retract of the cutter, and cannot guarantee the consistency of the pipe opening length. Summary of the invention

[0005] In view of the problems existing in the above-mentioned prior art, the present invention provides an automatic flat-edge machine, which is mainly composed of a cutting mechanism, a feed / retract mechanism and a blowing mechanism, etc., and has cutting function, feed / retract function, blowing function and visual positioning function to solve the above-mentioned problems.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an automatic flat-mouth machine, comprising: a cutting mechanism, a feed / retract mechanism, an air blowing mechanism, a visual positioning mechanism, a base plate, a slide, a slider guide, a cover shell, and a fixed flange. The fixed flange is installed on the base plate for installing the automatic flat-mouth machine. The visual positioning mechanism is installed on the base plate for identifying the position of the pipe mouth. The slide is installed on the base plate through the slider guide. The slide can slide along the slider guide, and the moving direction of the slide is the same as the moving direction of the base plate. The feed / retract mechanism is installed on the base plate, and the output shaft of the feed / retract mechanism is connected to the slide. The forward and backward movement of the slide is controlled by the feed / retract mechanism, thereby controlling the feed / retract of the cutting mechanism. The air blowing mechanism is installed on the cutting mechanism for cleaning the pipe mouth after cutting. The cover shell is installed on the base plate, and the cutting mechanism, the feed / retract mechanism, the air blowing mechanism, the slide, and the slider guide are covered between the cover shell and the base plate, and the chip part of the cutting mechanism can pass through the cover shell to process the pipe.

[0007] Furthermore, it also includes a limit mechanism, which includes: mechanical limit and electric limit. The mechanical limit is a limit block, which is installed on the base plate or slider guide close to the cutting mechanism, and is used to mechanically limit the forward and backward movement of the cutting mechanism; the electric limit includes: a switch bracket and a proximity switch, and the proximity switch is installed on the base plate through the switch bracket, and is used to electrically limit the forward and backward movement of the cutting mechanism.

[0008] Furthermore, the cover shell is provided with a threading hole, and a cable lock is provided on the threading hole for installing the electric wires and the air pipe of the blowing mechanism.

[0009] Furthermore, the blowing mechanism includes: an air pipe joint, an air inlet connecting plate, an air outlet pipe, and a wind rod head. The air pipe joint is installed on the cutting mechanism through the air inlet connecting plate. One end of the air outlet pipe is installed on the air inlet connecting plate and connected to the air pipe joint. The wind rod head is installed on the other end of the air outlet pipe.

[0010] Furthermore, the cutting mechanism includes: a cutting servo motor, a motor fixing flange, a gear box, a bearing mounting seat, a transmission shaft, a protective cover, a knife seat, a blade, a tapered bearing A, a tapered bearing B, a needle bearing, a round nut, a locking washer, a transmission flat key, and a sealing oil plug; the cutting servo motor is connected to the gear box through the motor mounting flange, so that the cutting servo motor is connected to the input end of the gear box, the bearing mounting seat is mounted on the output end of the gear box, one end of the transmission shaft passes through the bearing mounting seat, and is connected and fixed to the output end of the gear box through the transmission flat key, the tapered bearing A, the round The tapered bearing B is arranged between the bearing mounting seat and the transmission shaft. The round nut and the locking washer are installed on the transmission shaft for adjusting the preload and relaxation of the two tapered bearings. The protective cover and the knife seat are installed at the other end of the transmission shaft. The blade is arranged on the knife seat. A through hole is arranged in the center of the transmission shaft for installing the air outlet pipe. One end of the air outlet pipe passes through the knife seat, the transmission shaft, and the gear box in sequence and is connected to the air intake connecting plate installed on the gear box. The other end of the air outlet pipe extends out of the knife seat and is connected to the wind rod head. The needle bearing is arranged between the air outlet pipe and the transmission shaft. The sealing oil plug is installed on the gear box.

[0011] Furthermore, the output shaft in the gearbox is a through structure, that is, a through hole is provided in the gearbox output shaft, the through hole passes through the entire gearbox, the through hole is not connected to the inside of the gearbox, and the air outlet pipe is arranged in the through hole of the gearbox output shaft.

[0012] Furthermore, the gearbox includes: a gearbox housing A, a gearbox housing B, an input gear shaft, a transition gear shaft, a transition gear, an output gear, a locking nut, a tapered bearing C, a tapered bearing D, a wave spring, a skeleton oil seal A, a skeleton oil seal B, a sealing ring, a ball bearing, and a transition flat key; the output gear is an output gear with a hollow gear shaft, the gearbox housing A and the gearbox housing B are connected together by bolts, and a working chamber is formed therein, the sealing ring is arranged between the gearbox housing A and the gearbox housing B, the gearbox housing A and the gearbox housing B are provided with a through hole for installing the output gear, the gearbox housing A is provided with a through hole for installing the input gear shaft, both ends of the output gear are installed in the through holes for installing the output gear of the gearbox housing A and the gearbox housing B through tapered bearings D, locking nuts, and skeleton oil seals B, wherein the locking nut is installed on the hollow gear shaft of the output gear, the skeleton The oil seal B is arranged between the locking nut and the gear box housing A, the gear box housing B, the transition gear shaft is provided with an integrally formed shaft tooth, and the two ends of the transition gear shaft are respectively installed on the gear box housing A and the gear box housing B through tapered bearings C, and the wave spring is arranged between the tapered bearing C on which the transition gear shaft is installed and the gear box housing A or the gear box housing B, so that the shaft teeth of the transition gear shaft are meshed with the output gear, and the transition gear is installed on the transition gear shaft through a transition flat key, and the outer ring of the input gear shaft is provided with shaft teeth, and one end is provided with an output connecting port, and one end of the input gear with the output connecting port is installed on the through hole of the input gear shaft on the gear box housing A through a skeleton oil seal A, and the other end of the input gear is installed on the gear box housing B through a ball bearing, so that the shaft teeth of the input gear shaft are meshed with the transition gear, so that a reduction mechanism is formed between the input gear shaft, the transition gear shaft, the transition gear and the output gear.

[0013] Furthermore, the feed / retract mechanism includes: a mobile servo motor, a planetary reducer, a fixed seat, a diaphragm coupling, a ball screw, and a nut mounting seat. The fixed seat is installed on the base plate, the mobile servo motor is installed on the fixed seat through the planetary reducer, the output shaft of the planetary reducer is connected to the ball screw through the diaphragm coupling, the nut mounting seat is installed on the ball screw and fixed on the slide.

[0014] Furthermore, it also includes: angular contact ball bearings, precision round nuts, pressure plates, and rear anti-collision blocks. A through hole is provided in the center of the fixed seat. The mobile servo motor is installed at one end of the through hole of the fixed seat through a planetary reducer. The precision round nut is installed at one end of the ball screw. The ball screw has a precision round nut at one end which is installed in the other end of the through hole of the fixed seat through an angular contact ball bearing. The pressure plate is installed at the other end of the through hole of the fixed seat. The angular contact ball bearing is pressed onto the fixed seat. The diaphragm coupling is arranged in the through hole of the fixed seat for connecting the planetary reducer and the ball screw. The rear anti-collision block is installed at the end of the fixed seat close to the nut mounting seat to mechanically limit it.

[0015] Furthermore, the visual positioning mechanism includes: a line laser ranging camera, a camera fixing bracket, and an installation fixing bracket. The camera fixing bracket and the installation fixing bracket are both L-shaped brackets, and a through hole is provided on each side of the L-shaped bracket. The through hole on at least one side of the camera fixing bracket and the installation fixing bracket is a waist-shaped groove. The waist-shaped grooves on the camera fixing bracket and the installation fixing bracket are vertically arranged, so that the camera fixing bracket and the installation fixing bracket can be adjusted up, down, left and right after being installed by bolts.

[0016] The beneficial effects of the present invention are as follows: it has cutting function, feed / retract function, blowing function and visual positioning function, and by connecting with robots, manipulators, trusses and other equipment, it can automatically flatten the excess length of the pipe mouth, so that the flat mouth reaches the required length, improves efficiency and reduces labor costs; separate structural design: the cutting mechanism, feed / retract structure and blowing structure do not interfere with each other, and can be independently installed and disassembled, so as to realize the quick disassembly and quick replacement of wearing parts such as cutting tools and blowing rods; the front and rear anti-collision blocks serve as the hard limit mechanism of the cutting mechanism, and the proximity switch serves as the soft limit device of the cutting mechanism; the upper computer controls the on and off of the air valve, and after the flat mouth is achieved, the iron filings inside the pipe mouth are cleaned through the blowing mechanism; it has an independent feed / retract structure, and does not need to rely on external equipment to complete the feed / retract, that is, the external equipment only needs to complete the position coordinate positioning, and the requirements for the accuracy of the external equipment are reduced, so that the automatic flat mouth of the pipe mouth can be realized, the efficiency is improved, the labor cost is reduced, and the quality and cleanliness of the pipe mouth processing are guaranteed at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The flat machine axonometric view provided by the present invention Figure 1 ; Figure 2 The flat machine axonometric view provided by the present invention Figure 2 ; Figure 3 This is the front view of the flat-mouth machine; Figure 4 This is an exploded diagram of the cutting mechanism; Figure 5 This is the exploded view of the gearbox; Figure 6 It is a cross-sectional view of the feed / retract mechanism; Figure 7 It is a top view of the blowing mechanism; Figure 8 This is the exploded diagram of the visual positioning mechanism; Fig. 9 for Figure 1 Schematic diagram of the cross-sectional structure. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0020] like Figure 1-9 As shown, an automatic flat-edge machine includes: a cutting mechanism 1, a feed / retract mechanism 2, an air blowing mechanism 3, a visual positioning mechanism 4, a bottom plate 5, a slide plate 6, a slide rail 7, a front limit block 8, a cover 9, a fixing flange 10, a proximity switch 11, a proximity switch mounting bracket 12, and a cable lock 13; like Figure 3-4 As shown, the cutting mechanism 1 is fixed on the slide 6 by screws and locating pins, and includes: a cutting servo motor 101, a motor fixing flange 102, a gear box 103, a bearing mounting seat 104, a transmission shaft 105, a protective cover 106, a tool holder 107, a blade 108, a tapered bearing A 109, a tapered bearing B 110, a needle bearing 111, a round nut 112, a locking washer 113, a flat key 114, and a sealing oil plug 115; the cutting servo motor 101 serves as the power source of the cutting mechanism, and servo motors of different specifications are selected according to the actual required cutting force and the gear box reduction ratio. The cutting servo motor is connected to the motor fixing flange 102 by screws; the motor fixing flange 102 is provided with a countersunk hole, which is connected to the gear box by screws.

[0021] like Figure 5 As shown, the gearbox 103 has the function of reducing the rotation speed and increasing the torque, and includes: a gearbox housing A131, a gearbox housing B132, an input gear shaft 133, a transition gear shaft 134, a transition gear 135, an output gear 136, a locking nut 137, a tapered bearing C138, a tapered bearing D139, a wave spring 140, a skeleton oil seal A141, a skeleton oil seal B142, a sealing ring 143, a ball bearing 144, and a transition flat key 145; The gearbox housing A131 is provided with a circular hole for the input gear shaft 133 to pass through, a circular hole for the installation of the tapered bearing C138 and the tapered bearing D139, a circular hole for the installation of the skeleton oil seal A141 and the skeleton oil seal B142, a threaded hole for connecting with the motor fixing flange 102, a countersunk hole for connecting with the gearbox housing B132, a threaded hole for connecting with the air intake connecting plate 302 in the blowing mechanism 3, a special-shaped groove for installing the sealing ring 143, a screw through hole for connecting with the slide plate 6, and a threaded hole for installing with the sealing oil plug 115; The gearbox housing B132 is provided with a circular hole for installing the ball bearing 144, a circular hole for installing the tapered bearing C138 and the tapered bearing D139, a circular hole for installing the skeleton oil seal B142, a threaded hole for connecting the bearing mounting seat 104, a screw through hole for connecting with the slide plate 6, and a positioning pin hole; The input gear shaft 133 is divided into three sections. The inner hole of the first section from the left is connected to the motor shaft of the cutting servo motor 101 through a flat key, and the outer circle contacts the inner lip of the skeleton oil seal A141 to seal the grease. The middle section is an outer bevel gear that meshes with the transition gear 135. The outer circle of the third section is installed in the inner hole of the ball bearing 144. The transition gear shaft 134 is mainly divided into four sections. The first and fourth sections from the left are installed in the inner hole of the tapered bearing C138. The second section from the left is an external helical gear, which meshes with the output gear 136. The third section from the left has a keyway on its outer circle, which is interference-connected with the inner hole of the transition gear 135 through a transition flat key 145. The inner hole of the transition gear 135 has a keyway, and is interference-connected with the outer circle of the third section from the left of the transition gear shaft 134 through a transition flat key 145. The outer circle is an external helical gear, which meshes with the input gear shaft 133; The output gear 136 is mainly divided into five sections. The first and fifth sections from the left are provided with external threads, which are screwed together with the internal threads of the locking nut 137. The second and fourth sections from the left are installed in the inner hole of the tapered bearing D139. The outer circle of the third section in the middle is an external helical gear, which meshes with the transition gear shaft 134. The inner hole is provided with two symmetrical flat key slots. The inner circle of the locking nut 137 is provided with an internal thread, which is screwed with the external threads of the first and fifth sections from the left of the output gear 136. The outer circle is a smooth circle after grinding, which contacts the inner lip of the skeleton oil seal B142 to seal the grease. The outer end surface is provided with 4 blind holes for the use of the rotating tooling of the locking nut 137. The outer circle of the tapered bearing C138 is installed in the corresponding circular holes of the gear box housing A131 and the gear box housing B132, and the inner hole is installed on the two sections of the optical axis of the transition gear shaft 134, playing a supporting role for the transition gear shaft 134; The outer circle of the tapered bearing D139 is installed in the corresponding circular holes of the gearbox housing A131 and the gearbox housing B132, and the inner hole is installed on the two optical axes of the output gear 136 to support the output gear 136; The wave spring 140 is installed in the gearbox housing A131 and is used to install the inner hole of the outer circle of the tapered bearing C138, so as to eliminate the axial clearance of the tapered bearing C138; The outer circle of the skeleton oil seal A141 is installed in the corresponding circular hole of the gear box housing A131, and the inner lip is in contact with the first outer circle of the input gear shaft 133 from the left, playing the role of sealing grease; The outer circle of the skeleton oil seal B142 is installed in the corresponding circular holes of the gear box housing A131 and the gear box housing B132, and the inner lip is in contact with the outer circle of the locking nut 137 to play the role of sealing grease; The sealing ring 143 is installed in the special-shaped groove machined on the end face of the gear box housing A131 to seal the grease; The outer circle of the ball bearing 144 is installed in the corresponding circular hole of the gear box housing B132, and the inner hole is installed on the outer circle of the third section of the input gear shaft 133, which plays a supporting role for the input gear shaft 133; The outer circle of the bearing mounting seat 104 is divided into three sections. The first section from the left is a positioning straight opening connected to the corresponding inner hole of the gear box housing B132. The second section has a countersunk hole in the circumferential direction of the end face for screws to connect with the gear box housing B132. The outer circle of the third section is a smooth circle with a conical angle near the end. The inner hole part is divided into five sections. The first and fifth sections from the left are smooth holes to avoid the bearing mounting hole. The second and fourth sections from the left are used for the outer circle installation of the tapered bearing A109 and the tapered bearing B110. The outer circle of the transmission shaft 105 is mainly composed of seven sections. The first section from the left has two symmetrical keyways, which are matched and transmitted with the inner hole of the output gear 136 through the flat key 114. The second section from the left has external threads and keyways. The third section from the left has a smaller outer diameter than the second and fourth sections, and serves as the installation position of the threaded cutter groove and the stop washer 113. The fourth and sixth sections from the left are used for the inner hole installation of the tapered bearing A109 and the tapered bearing B110. The seventh section has a groove on the outer circle, and the end face has threaded holes and blind holes. The inner hole part is divided into three sections. The first section from the left is a light hole, the second section from the left is the outer circle installation hole of the needle bearing 111, and the third section is a positioning hole. The protective cover 106 is in the shape of a trumpet, with the large mouth facing outwards to block iron filings, and the small mouth end surface is connected to the threaded hole corresponding to the transmission shaft 105 through a screw; The outer circle of the knife seat 107 is mainly divided into five sections. The first outer circle section from the left is a positioning straight opening connected to the positioning hole corresponding to the transmission shaft 105. The second end surface of the left section has a through hole in the circumferential direction for connecting the screw with the threaded hole corresponding to the transmission shaft 105. The third and fourth sections are transition sections, and the fifth section has a position for installing the blade 108. The inner hole part is divided into two sections as a through hole; The inner hole of the round nut 112 has an internal thread, which is screwed with the second section of the outer circle external thread from the left of the transmission shaft 105, and cooperates with the stop washer 113 to realize the pre-tightening and loosening of the tapered bearing A109 and the tapered bearing B110; like Figure 6 As shown, the feed / retract mechanism 2 is used to control the forward and backward movement of the cutting mechanism, and includes a mobile servo motor 201, a planetary reducer 202, a fixed seat 203, a diaphragm coupling 204, an angular contact ball bearing 205, a precision round nut 206, a pressure plate 207, a ball screw 208, a rear anti-collision block 209, and a nut mounting seat 210; The mobile servo motor 201 is used as the power source of the feed / retract mechanism. Mobile servo motors of different specifications are selected according to the actual required thrust and the reduction ratio of the planetary reducer. The mobile servo motor is connected to the planetary reducer 202 by screws. The planetary reducer 202 has the function of reducing the rotation speed and increasing the torque. The planetary reducer is connected to the threaded hole on the end face of the fixing seat 203 by screws; The fixing seat 203 is mainly used for fixing the planetary reducer and the screw rod. The left and right end faces are respectively provided with threaded holes. The inner hole is divided into three sections. The first and second sections from the left are avoidance holes. The third section is used for installing the outer circle of the angular contact ball bearing 205. Through holes are opened on both sides of the outside and connected to the bottom plate 5 by screws and positioning pins. Four through holes are opened on one side for the hexagonal wrench to pass through. The inner hole of the diaphragm coupling 204 is connected to the output shaft of the planetary reducer and the optical axis of one end of the screw rod respectively, and a wrench can be used to tighten or loosen the screws of the coupling through the four through holes on the side of the fixing seat 203; The ball screw 208 is divided into four sections. The first section from the left is a smooth circle connected to the inner hole of the diaphragm coupling 204. The second section from the left is an external thread screwed with the internal thread of the precision round nut 206. The third section from the left is a smooth circle for installing the inner ring of the angular contact ball bearing 205. The fourth section is a ball raceway. The pressing plate 207 is provided with a through hole and is connected to the side of the fixing seat 203 by screws to achieve axial pre-tightening of the angular contact ball bearing 205; The angular contact ball bearing 205 is used for axial fixation of the ball screw 208. The back-to-back installation improves the radial bearing capacity and achieves axial zero clearance through the precision round nut 206. The rear anti-collision block 209 is connected to the side of the fixing seat 203 by screws, and plays a role of mechanical limit; The nut mounting seat 210 has an inner hole for connecting with a nut matched with the screw rod, and has through holes on both sides of the outer side for connecting with the slide plate 6 through screws and positioning pins; like Figure 7 As shown, the blowing mechanism 3 is used to clean the iron filings at the pipe opening after cutting, and includes an air pipe joint 301, an air inlet connecting plate 302, an air outlet pipe 303, and a wind rod head 304; The air pipe joint 301 is used to connect the external air pipe and the air intake connection plate 302; The outer circle of the air inlet connecting plate 302 is divided into three sections. The first section from the left has a threaded hole on the side for connecting the air pipe joint 301. The middle section has a through hole on the end surface in the circumferential direction and is connected to the gear box housing A131 by screws. The outer circle has a semicircular notch to avoid interference with the motor fixing flange 102. The third section of the outer circle is used for positioning and installation with the inner hole corresponding to the gear box housing A131. The inner hole is divided into three sections. The first section from the left is a blind hole that penetrates the hole on the side. The middle section is an internal thread. The third section is a round hole for positioning. The outer circle of the air outlet pipe 303 is divided into three sections. The first section from the left is a thread, which is screwed with the internal thread in the middle of the inner hole of the air inlet connecting plate 302. The outer circle of the second section is positioned and matched with the third section of the inner hole of the air inlet connecting plate 302. The outer circle of the third section is a common outer circle, and two symmetrical flat positions are processed near the end to facilitate disassembly. The inner hole is divided into two sections, the left section is a common inner hole, and the right section has an internal thread; The wind rod head 304 is divided into two sections. The outer circle of the left section has an external thread, which is screwed with the internal thread of the right section of the inner hole of the air outlet pipe 303. The right section has four oblique blind holes in the circumferential direction. The inner hole blind holes are connected to the four oblique blind holes. The outer circle is processed with two symmetrical flat positions for easy disassembly. like Figure 8 As shown, the visual positioning mechanism 4 is used to identify the position of the pipe mouth, and includes a line laser ranging camera 401, a camera fixing bracket 402, and a bracket 403; the line laser ranging camera 401 is used to provide real-time feedback on the position of the blade from the pipe mouth; the camera fixing bracket 402 and the bracket 403 are provided with horizontal and vertical waist-shaped grooves for adjusting the up, down, left, and right positions of the line laser ranging camera 401.

[0022] The bottom plate 5 is mainly used for fixing the whole mechanism, with two weight-reducing holes on the left and right. It is provided with threaded holes for fixing the bracket 403 in the visual positioning mechanism 4, positioning circular holes, threaded holes and positioning pin holes for installing the fixing flange 10, through holes for fixing the bottom plate 5 itself, and 4 threaded holes for hoisting. Below it is provided with reference surfaces and threaded holes for installing the slider rail 7, threaded holes and positioning pin holes for installing the fixing seat 203, threaded holes for installing the proximity switch bracket, threaded holes for installing the front bumper 8, and threaded holes for installing the cover 9. The upper and lower sides are provided with threaded holes for installing the cover 9 and threaded holes for hoisting; The slide plate 6 is used to connect the cutting mechanism 1 and the slider guide rail 7. The slide plate 6 has avoidance grooves on the left and right sides for installing the cutting mechanism 1 and the nut mounting seat 210. Four reference surfaces are processed on the top, and through holes are provided on the reference surfaces for installing the slider. Threaded holes and positioning pin holes are provided on the bottom for connecting the cutting mechanism 1 and the nut mounting seat 210. Two threaded holes are provided for installing hexagonal head screws, which are used as identification signals of the proximity switch 11. The front limit block 8 is fixed to the bottom plate by screws and is used for mechanical limit of the cutting mechanism 1; like Figure 1-3 As shown, the cover 9 is divided into three parts. The first part can cover the front, back, bottom and right sides of the flat machine. A circular hole is opened on the right side to avoid the bearing mounting seat 104 in the cutting mechanism 1. Through holes are opened on the upper and lower sides and connected to the bottom plate 5 by screws. The second and third parts mainly cover the left side of the flat machine. Both parts have semicircular holes for installing the cable lock 13 and through holes, which are connected to the bottom plate 5 by screws. The fixing flange 10 is used to connect the bottom plate 5 and an external operating mechanism, such as a robot, a manipulator, a truss and other equipment. The outer circle of the fixing flange 10 is mainly divided into three sections. The first section end surface is provided with through holes and positioning pin holes along the circumferential direction, which is connected to the external equipment. The middle section is a transition section. The third section end surface is provided with through holes and positioning pin holes along the circumferential direction, which is connected to the bottom plate 5. The proximity switch 11 is mounted on a proximity switch mounting bracket 12, and the proximity switch mounting bracket 12 is fixed to the bottom plate 5 by screws; The cable lock 13 is mainly used for passing and fixing the cables of the servo motor, the air pipe, and the proximity switch, and is fixed in the semicircular holes on the second part and the third part of the cover 9 through its own threads.

[0023] The method of using the automatic flat-mouth machine is as follows: the automatic flat-mouth machine is installed on a robot or manipulator, truss or other equipment to control the flat-mouth machine, and the mobile servo motor, cutting servo motor, proximity switch, and visual positioning system are connected to the host computer. The air pipe joint 301 is connected to the air source through the electromagnetic air valve, and the electromagnetic air valve is electrically connected to the host computer.

[0024] Step 1: Fix the pipe to be processed on the workbench of the device, and adjust the position of the pipe so that its axis is as parallel as possible to the main axis of the device; Step 2: The robot, manipulator, truss and other equipment first move the flat edge machine back to the zero point; Step 3: Use the visual positioning system to accurately locate the pipe mouth of the pipe, record the position coordinates of the cut pipe mouth, and transmit the position coordinate signal to the host computer; Step 4: After the visual positioning system gives feedback, the flattening machine cutter head is moved to the center of the first pipe opening by a robot, manipulator, truss or other equipment, while ensuring that the axis of the cutter seat is perpendicular to the end face of the pipe; Step 5: The host computer issues a command, and the cutting servo motor 101 starts, driving the knife seat 107 and the blade to rotate 108; Step 6: The host computer issues a command, the mobile servo motor 201 starts, controls the cutting mechanism 1 to move to the pipe mouth position, starts flattening, and cuts the excess part of the pipe mouth; Step 7: After the first flat edge is completed, the cutting mechanism 1 returns to a safe position; Step 8: When the cutting mechanism 1 starts to retract, the upper computer controls to open the solenoid valve, and the blowing mechanism 3 blows air out of the pipe mouth to blow out the impurities such as iron filings generated by cutting, and then closes the solenoid valve; Step 9: The host computer issues a command to complete all the pipe openings in sequence; Step 10. Finally, the robot or manipulator, truss and other equipment controls the flattening machine to return to the zero point to complete the flattening task.

[0025] The above are the specific implementation steps of this embodiment. Through this method, the automatic flattening of the pipe mouth can be achieved, which improves efficiency, reduces labor costs, and ensures the quality and cleanliness of the pipe mouth processing.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic flat-mouth machine, characterized in that: The invention comprises: a cutting mechanism, a feed / retract mechanism, an air blowing mechanism, a visual positioning mechanism, a base plate, a slide, a slider guide, a cover shell, and a fixed flange. The fixed flange is installed on the base plate for installing an automatic flat-mouth machine. The visual positioning mechanism is installed on the base plate for identifying the position of the pipe mouth. The slide is installed on the base plate through the slider guide. The slide can slide along the slider guide, and the moving direction of the slide is the same as the moving direction of the base plate. The feed / retract mechanism is installed on the base plate. The output shaft of the feed / retract mechanism is connected to the slide. The forward and backward movement of the slide is controlled by the feed / retract mechanism, thereby controlling the feed / retract of the cutting mechanism. The air blowing mechanism is installed on the cutting mechanism for cleaning the pipe mouth after cutting. The cover shell is installed on the base plate, and the cutting mechanism, the feed / retract mechanism, the air blowing mechanism, the slide, and the slider guide are covered between the cover shell and the base plate, and the chip part of the cutting mechanism can pass through the cover shell to process the pipe.

2. The automatic flat-edge machine according to claim 1, characterized in that: It also includes a limiting mechanism, which includes: a mechanical limit and an electric limit. The mechanical limit is a limit block, which is installed on a base plate or a slider guide rail close to the cutting mechanism, and is used to mechanically limit the forward and backward movement of the cutting mechanism; the electric limit includes: a switch bracket and a proximity switch. The proximity switch is installed on the base plate through the switch bracket, and is used to electrically limit the forward and backward movement of the cutting mechanism.

3. An automatic flat-edge machine according to claim 1 or 2, characterized in that: The cover shell is also provided with a threading hole, and a cable lock is provided on the threading hole for installing electric wires and an air pipe of the blowing mechanism.

4. The automatic flat-edge machine according to claim 1, characterized in that: The blowing mechanism includes: an air pipe joint, an air inlet connecting plate, an air outlet pipe, and a wind rod head. The air pipe joint is installed on the cutting mechanism through the air inlet connecting plate. One end of the air outlet pipe is installed on the air inlet connecting plate and is connected to the air pipe joint. The wind rod head is installed on the other end of the air outlet pipe.

5. The automatic flat-edge machine according to claim 4, characterized in that: The cutting mechanism comprises: a cutting servo motor, a motor fixing flange, a gear box, a bearing mounting seat, a transmission shaft, a protective cover, a knife seat, a blade, a tapered bearing A, a tapered bearing B, a needle bearing, a round nut, a locking washer, a transmission flat key, and a sealing oil plug; the cutting servo motor is connected to the gear box through the motor mounting flange, so that the cutting servo motor is connected to the input end of the gear box, the bearing mounting seat is mounted on the output end of the gear box, one end of the transmission shaft passes through the bearing mounting seat, and is connected and fixed to the output end of the gear box through the transmission flat key, the tapered bearing A, the tapered bearing B, the needle bearing, the round nut, the locking washer, the transmission flat key, and the sealing oil plug; the cutting servo motor is connected to the gear box through the motor mounting flange, so that the cutting servo motor is connected to the input end of the gear box, the bearing mounting seat is mounted on the output end of the gear box, one end of the transmission shaft passes through the bearing mounting seat, and is connected and fixed to the output end of the gear box through the transmission flat key, B is arranged between the bearing mounting seat and the transmission shaft, and the round nut and the locking washer are installed on the transmission shaft for adjusting the preload and relaxation of the two tapered bearings. The protective cover and the knife seat are installed at the other end of the transmission shaft, and the blade is arranged on the knife seat. A through hole is arranged in the center of the transmission shaft for installing the air outlet pipe, and one end of the air outlet pipe passes through the knife seat, the transmission shaft, and the gear box in sequence and is connected with the air intake connecting plate installed on the gear box, and the other end of the air outlet pipe extends out of the knife seat and is connected with the wind rod head, the needle roller bearing is arranged between the air outlet pipe and the transmission shaft, and the sealing oil plug is installed on the gear box.

6. The automatic flat-edge machine according to claim 5, characterized in that: The output shaft in the gearbox is a through structure, that is, a through hole is provided in the output shaft of the gearbox, the through hole passes through the entire gearbox, the through hole is not connected to the inside of the gearbox, and the air outlet pipe is arranged in the through hole of the output shaft of the gearbox.

7. The automatic flat-edge machine according to claim 6, characterized in that: The gearbox comprises: a gearbox housing A, a gearbox housing B, an input gear shaft, a transition gear shaft, a transition gear, an output gear, a locking nut, a tapered bearing C, a tapered bearing D, a wave spring, a skeleton oil seal A, a skeleton oil seal B, a sealing ring, a ball bearing, and a transition flat key; the output gear is an output gear with a hollow gear shaft, the gearbox housing A and the gearbox housing B are connected together by bolts, and a working chamber is formed therein, the sealing ring is arranged between the gearbox housing A and the gearbox housing B, the gearbox housing A and the gearbox housing B are provided with a through hole for installing the output gear, the gearbox housing A is provided with a through hole for installing the input gear shaft, both ends of the output gear are installed in the through holes for installing the output gear of the gearbox housing A and the gearbox housing B through tapered bearings D, locking nuts, and skeleton oil seals B, wherein the locking nut is installed on the hollow gear shaft of the output gear, and the skeleton oil seal B It is arranged between the locking nut and the gear box housing A, the gear box housing B, the transition gear shaft is provided with an integrally formed shaft tooth, and the two ends of the transition gear shaft are respectively installed on the gear box housing A and the gear box housing B through tapered bearings C, and the wave spring is arranged between the tapered bearing C on which the transition gear shaft is installed and the gear box housing A or the gear box housing B, so that the shaft tooth of the transition gear shaft is meshed with the output gear, and the transition gear is installed on the transition gear shaft through a transition flat key, and the outer ring of the input gear shaft is provided with shaft teeth, and one end is provided with an output connecting port, and one end of the input gear having the output connecting port is installed on the through hole of the input gear shaft on the gear box housing A through a skeleton oil seal A, and the other end of the input gear is installed on the gear box housing B through a ball bearing, so that the shaft tooth of the input gear shaft is meshed with the transition gear, so that a reduction mechanism is formed between the input gear shaft, the transition gear shaft, the transition gear and the output gear.

8. The automatic flat-edge machine according to claim 1, characterized in that: The feed / retract mechanism includes: a mobile servo motor, a planetary reducer, a fixed seat, a diaphragm coupling, a ball screw, and a nut mounting seat. The fixed seat is installed on the base plate, the mobile servo motor is installed on the fixed seat through the planetary reducer, the output shaft of the planetary reducer is connected to the ball screw through the diaphragm coupling, and the nut mounting seat is installed on the ball screw and fixed on the slide.

9. The automatic flat-edge machine according to claim 8, characterized in that: Also includes: Angular contact ball bearing, precision round nut, pressure plate, rear anti-collision block, the center of the fixed seat is provided with a through hole, the mobile servo motor is installed at one end of the through hole of the fixed seat through the planetary reducer, the precision round nut is installed at one end of the ball screw, the ball screw has a precision round nut at one end installed in the other end of the through hole of the fixed seat through the angular contact ball bearing, the pressure plate is installed at the other end of the through hole of the fixed seat, the angular contact ball bearing is pressed onto the fixed seat, the diaphragm coupling is set in the through hole of the fixed seat, which is used to connect the planetary reducer and the ball screw, and the rear anti-collision block is installed at the end of the fixed seat close to the nut mounting seat to mechanically limit it.

10. The automatic flat-edge machine according to claim 1, characterized in that: The visual positioning mechanism includes: a line laser ranging camera, a camera fixing bracket, and an installation fixing bracket. The camera fixing bracket and the installation fixing bracket are both L-shaped brackets, and a through hole is provided on each side of the L-shaped bracket. The through hole on at least one side of the camera fixing bracket and the installation fixing bracket is a waist-shaped groove. The waist-shaped grooves on the camera fixing bracket and the installation fixing bracket are vertically arranged, so that the camera fixing bracket and the installation fixing bracket can be adjusted up, down, left, and right after being installed by bolts.

Images