Petroleum sucker rod body polisher device and method for intelligent manufacturing equipment industry

Abstract

The invention relates to the technical field of polishing devices, in particular to a petroleum sucker rod body polisher device and method in the intelligent manufacturing equipment industry. Comprising a mounting frame and a servo motor, the output shaft end of the servo motor is provided with a horizontal variable-stroke part, the horizontal variable-stroke part is connected with a horizontal sliding frame which is variable in stroke and horizontally reciprocates, the horizontal sliding frame is connected with a vertical pressurizing frame in a sliding mode, and a vertical variable-stroke part which drives the vertical pressurizing frame to reciprocate in a variable-stroke mode is fixedly mounted on the horizontal sliding frame. Two winding rollers are rotationally mounted on the vertical pressurizing frame, a reciprocating driving system for driving the two winding rollers to synchronously rotate in a reciprocating manner is arranged on the vertical pressurizing frame, a polishing abrasive belt is wound between the two winding rollers, and a liquid distribution cleaning system for synchronously and rotationally brushing the polishing abrasive belt and cooling the polishing abrasive belt in a water cooling manner is arranged on the vertical pressurizing frame. By means of the linkage design of the horizontal stroke changing piece and the vertical stroke changing piece, the grinding limitation of fixed pressure and fixed stroke in the prior art is broken through, and a cooperative control mechanism dynamically matched with the stroke and the pressure is constructed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of polishing devices, in particular to a petroleum sucker rod body polisher device and method for intelligent manufacturing equipment industry. BACKGROUND

[0002] As a key transmission component in oil and gas exploitation, the smoothness of the rod body surface, the thread accuracy and the overall flatness of the petroleum sucker rod directly affect the pumping efficiency and the service life of the equipment. During the production and repair of the sucker rod, rod body polishing is one of the core processes, and different structural parts such as the middle part of the rod body, the threaded joint and the thickened transition section need to be treated accordingly. The middle part of the rod body needs to quickly remove the rough surface layer left by casting or rolling and trim the roundness, the threaded joint needs to finely remove burrs to ensure the connection sealing, and the thickened transition section needs to eliminate the stress concentration marks at the diameter mutation. With the continuous improvement of the quality requirements of oil and gas exploitation on the sucker rod, the traditional polishing equipment has been difficult to meet the efficient, accurate and stable processing needs, and the following technical problems exist in particular: Most of the existing sucker rod polishing equipment adopts a fixed pressure and fixed stroke polishing mode. The vertical pressing mechanism usually provides constant pressure through a gas cylinder or a hydraulic cylinder, and the horizontal or vertical moving stroke is controlled by a single cam or screw structure. It cannot be dynamically adjusted according to the structural characteristics of different parts of the sucker rod. For rough areas such as the middle part of the rod body that need a lot of material removal, fixed pressure and stroke often lead to low polishing efficiency, and multiple reciprocations are needed to meet the surface roughness requirements. For fine parts such as threaded joints and thickened transition sections, constant high pressure and long stroke can easily cause excessive cutting, thread type wear can cause connection accuracy to decrease, and transition section steps can cause stress concentration, which can even cause the sucker rod to fatigue and break during use. Therefore, the present application provides a petroleum sucker rod body polisher device and method for intelligent manufacturing equipment industry to solve the problems in the background art. SUMMARY

[0003] The present application provides a petroleum sucker rod body polisher device and method for intelligent manufacturing equipment industry to solve the problems in the background art.

[0004] In order to achieve the above purposes, the technical scheme adopted by the present application is: the intelligent manufacturing equipment industry's oil sucker rod body polisher device, comprising a mounting frame and a servo motor, the output shaft end of the servo motor is provided with a horizontal variable stroke part, a horizontal slide is connected to the horizontal variable stroke part and moves horizontally and reciprocally, a vertical pressing frame is slidably connected to the horizontal slide, and a vertical variable stroke part for driving the vertical pressing frame to move reciprocally is fixedly installed, two winding rollers are rotatably installed on the vertical pressing frame, and a reciprocating driving system for driving the two winding rollers to rotate synchronously is arranged, a polishing belt is wound between the two winding rollers, a liquid distribution cleaning system for rotating and brushing the polishing belt synchronously and water cooling is arranged on the vertical pressing frame, and an intelligent conversion system is further arranged on the vertical pressing frame, which converts the use area of the polishing belt in a directional manner through visual detection feedback.

[0005] As a preferred technical scheme of the present application, the horizontal variable stroke part comprises a first rotating wheel mounted on the output shaft end of the servo motor, three first fan tooth areas and three first toothless areas are alternately arranged on the first rotating wheel in the circumferential direction, the horizontal slide is slidably connected with the mounting frame, a plurality of horizontal return springs are arranged between the horizontal slide and the mounting frame, a horizontal rack plate is mounted on the horizontal slide, the three first fan tooth areas are alternately engaged with the horizontal rack plate, the central angles of the three first fan tooth areas corresponding to each other increase by 20° in the clockwise direction, and the central angles of the three first toothless areas corresponding to each other are the same.

[0006] As a preferred technical scheme of the present application, the vertical variable stroke part comprises a shaft and a second rotating wheel rotatably connected to the horizontal slide, the output shaft end of the servo motor is drivingly connected with a first synchronous belt, the shaft is drivingly connected with the first synchronous belt, a bevel gear is mounted on the shaft and the second rotating wheel, the two bevel gears are orthogonally engaged, two second fan tooth areas and two second toothless areas are alternately arranged on the second rotating wheel in the circumferential direction, a vertical rack plate is mounted on the vertical pressing frame, the two second fan tooth areas are alternately engaged with the vertical rack plate, a plurality of vertical return springs are arranged between the vertical pressing frame and the horizontal slide, the central angles of the two second fan tooth areas corresponding to each other differ by 40°, the central angles of the two second toothless areas corresponding to each other are the same, and the mounting frame is provided with a first tensioning part for tensioning the first synchronous belt.

[0007] As a preferred technical scheme of the present application, the first tensioning part comprises a first tensioning platform slidably connected to the mounting frame, a first tensioning spring is arranged between the first tensioning platform and the mounting frame, a first tensioning wheel is rotatably installed on the first tensioning platform, and the first tensioning wheel is drivingly connected with the first synchronous belt.

[0008] As a preferred technical scheme of the present application, the reciprocating drive system comprises a through shaft rotatably connected to the horizontal slide and a sliding shaft rotatably connected to the vertical pressing frame, the through shaft is in transmission connection with the first synchronous belt, and the sliding shaft is in linkage with the through shaft, two first incomplete gears are rotatably installed on the vertical pressing frame, the two first incomplete gears are in linkage through the second synchronous belt, the sliding shaft is in transmission connection with the second synchronous belt, a reciprocating gear is installed on one of the winding rollers, and the two first incomplete gears are alternately engaged with the reciprocating gear.

[0009] As a preferred technical scheme of the present application, the tail of the sliding shaft is provided with a square section, the inside of the through shaft is fixedly provided with a square sliding groove with two open ends and in sliding connection with the square section, the cross sections of the square sliding groove and the square section are regular hexagons, the central angles of the effective engagement sections of the two first incomplete gears are both 140°, the installation phases of the two first incomplete gears on the vertical pressing frame are 180°, and the two first incomplete gears are arranged on the two sides of the reciprocating gear respectively.

[0010] As a preferred technical scheme of the present application, the liquid distribution cleaning system comprises two guide rollers and two brush rollers rotatably connected to the vertical pressing frame, the two guide rollers are in transmission connection with the polishing belt, a group of brush hairs are installed on the two brush rollers, the brush hairs are in close contact with the polishing belt, the two guide rollers are in transmission connection with the third synchronous belt, the two third synchronous belts are in transmission connection with the two brush rollers respectively, the inside of the two brush rollers is provided with a liquid distribution cavity, and a group of cleaning spray holes are provided on the two brush rollers, the cleaning spray holes are in communication with the corresponding liquid distribution cavities, a cooling spray pipe and a liquid storage tank are installed on the vertical pressing frame, the bottom surface of the cooling spray pipe is uniformly provided with atomizing nozzles, the liquid storage tank is in communication with a pump body, the liquid outlet port of the pump body is in communication with a liquid delivery hose, and the two liquid distribution cavities and the cooling spray pipe are in communication with the liquid delivery hose.

[0011] As a preferred technical scheme of the present application, the conversion system comprises a conversion motor installed on the vertical pressing frame, a second incomplete gear is installed on the output shaft end of the conversion motor, a conversion gear adapted to engage with the second incomplete gear is installed on the other winding roller, the central angle of the effective engagement section of the second incomplete gear is 90°, a second tensioning table is in sliding connection with the vertical pressing frame, a tensioning roller is rotatably installed on the second tensioning table, the tensioning roller is in transmission connection with the second synchronous belt, an adjusting push rod is installed on the vertical pressing frame, the movable end of the adjusting push rod is in fixed connection with the second tensioning table, a microcontroller is installed on the liquid storage tank, two visual probes are installed on the vertical pressing frame, the data ends of the two visual probes are both directly opposite the polishing belt, and the data end of the visual probe, the conversion motor and the electric control end of the adjusting push rod are all in data connection with the microcontroller.

[0012] As the preferred technical scheme of the present application, two third tensioning tables are slidingly connected to the vertical pressing frame, the side surface of each of the two third tensioning tables is provided with a second tensioning spring limited by the vertical pressing frame, a second tensioning wheel is rotatably installed on each of the two third tensioning tables, and the two second tensioning wheels are in driving connection with the polishing abrasive belt.

[0013] As the preferred technical scheme of the present application, the use method of the petroleum sucker rod body polisher device of the intelligent manufacturing equipment industry comprises the following steps: SS1: device installation and debugging, the mounting frame is fixed to the polishing work platform through the positioning structure, the connection state of the servo motor, the horizontal variable stroke part, the vertical variable stroke part and each transmission part is checked, the movement flexibility of the horizontal slide and the vertical pressing frame is debugged, and it is ensured that the polishing abrasive belt on the roller is tensioned and positioned in the middle; SS2: workpiece clamping and positioning, the petroleum sucker rod to be polished is fixed to the polishing abrasive belt corresponding work area, the posture of the sucker rod is adjusted, and the part to be polished is aligned and attached to the surface of the polishing abrasive belt; SS3: parameter presetting and starting, according to the polishing requirement of the sucker rod, the rotation speed of the servo motor, the stroke parameter of the horizontal variable stroke part and the pressure parameter of the vertical variable stroke part are preset through the control terminal, and the servo motor and each system power supply are started; SS4: composite polishing operation, the servo motor drives the horizontal variable stroke part to drive the horizontal slide to realize variable stroke horizontal reciprocating movement, and the vertical variable stroke part drives the vertical pressing frame to realize variable stroke vertical reciprocating movement, the reciprocating drive system drives the two rollers to rotate synchronously, so that the polishing abrasive belt performs horizontal and vertical coordinated variable parameter polishing on the sucker rod; SS5: auxiliary cleaning and cooling, during the polishing process, the liquid distribution cleaning system is started synchronously to clean the polishing abrasive belt by rotating brush, and the polishing area and the abrasive belt are cooled through the water cooling structure. SS6: intelligent abrasive belt conversion, the intelligent conversion system realizes real-time monitoring of the polishing abrasive belt wear state through the visual detection module, and automatically drives the conversion mechanism to directionally switch the use area of the polishing abrasive belt when detecting that the local wear exceeds the standard; SS7: operation completion and reset, after the polishing is completed, the servo motor and each system power supply are turned off, the sucker rod is removed, the device surface grinding dust is cleaned, and the horizontal slide and the vertical pressing frame are reset to the initial position.

[0014] Compared with the prior art, the present application has the beneficial effects: 1. This invention, through the linkage design of horizontal and vertical stroke variable components, overcomes the limitations of existing grinding technologies with fixed pressure and fixed stroke. It constructs a collaborative control mechanism that dynamically adapts stroke and pressure. In the horizontal direction, when the servo motor drives the first rotating wheel to rotate, the three first sector tooth areas with center angles increasing by 20° alternately mesh with the horizontal rack plate. Combined with the horizontal return spring, this achieves variable stroke reciprocating movement of the horizontal slide. The long stroke is adapted for rapid material removal and roundness adjustment in the middle of the rod, while the short stroke precisely acts on the burr removal of the threaded joint, solving the problem of low rough grinding efficiency in traditional equipment. To address the contradiction between low-pressure and high-precision grinding, which can easily lead to over-cutting, a second rotating wheel driven by bevel gears in the vertical direction uses two sector gear zones with a 40° difference in center angle to drive the vertical pressure frame for variable-frequency lifting. The larger center angle corresponds to high pressure for powerful grinding, while the smaller center angle corresponds to high frequency and low pressure for fine finishing. At the same time, the suspended buffer design of the second toothless zone prevents the abrasive belt from being continuously pressured and worn. This coordinated operation of horizontal variable stroke and vertical variable pressure allows for targeted grinding of different parts of the sucker rod without stopping the machine to adjust parameters, reducing process changeover time compared to the traditional manual adjustment mode.

[0015] 2. To address the problems of rapid localized wear of sanding belts and production disruptions caused by manual replacement in existing technologies, this invention constructs a linkage system of visual monitoring, automatic conversion, and cleaning and maintenance. The visual probe collects sanding belt wear data in real time and transmits it to the microcontroller. When localized wear is determined to be excessive, the microcontroller first controls the adjusting push rod to push the second tensioning table to tension the second synchronous belt, ensuring stable power cutting. Then, it drives the conversion motor to achieve directional switching of the unworn areas of the sanding belt through the 90° meshing of the second incomplete gear and the conversion gear. Compared with manual replacement, the utilization rate of the sanding belt is improved and downtime is reduced. At the same time, the liquid distribution cleaning system and the reciprocating drive system work together. When the reciprocating drive system drives the sanding belt to rotate forward, pause, reverse, and pause again, the brush roller rotates synchronously under the transmission of the guide roller during the pause phase. The brush cleaning and cleaning liquid spraying are used to clean the sanding belt abrasives. The atomizing nozzle of the cooling spray pipe simultaneously cools the grinding area, avoiding secondary scratches and high-temperature deformation caused by residual abrasives. This achieves full-process coordination of grinding, conversion, cleaning, and cooling.

[0016] 3. The liquid cleaning system and the polishing system of this invention are deeply linked to form a closed-loop collaborative mechanism. When the polishing belt moves, it drives the guide roller to rotate, and drives the brush roller to rotate synchronously through the third synchronous belt. The brush bristles are in close contact with the sanding belt to clean the abrasive. At the same time, the cleaning liquid in the storage tank is delivered to the liquid distribution chamber of the brush roller through the liquid delivery hose, and is evenly sprayed by the cleaning nozzle to achieve liquid cleaning. The atomizing nozzle of the cooling nozzle is precisely aimed at the polishing contact point, and the cleaning liquid is atomized and directly cooled. The heat dissipation efficiency is improved compared with traditional water cooling. This synchronous linkage of sanding belt movement, brush roller cleaning and atomization cooling completely solves the problem of reduced polishing accuracy caused by abrasive residue in the prior art, while avoiding sanding belt failure due to overheating and extending the service life of the sanding belt. Attached Figure Description

[0017] Figure 1 The overall structure schematic diagram of the intelligent manufacturing equipment industry oil sucker rod body polisher device; Figure 2 The overall structure schematic diagram of the intelligent manufacturing equipment industry oil sucker rod body polisher device; Figure 1 Another perspective structure schematic diagram; Figure 3 The cross-sectional structure schematic diagram of the first tensioning wheel and the conversion motor; Figure 4 The structure schematic diagram of the vertical pressure frame and the winding roller; Figure 5 The structure schematic diagram of the intelligent manufacturing equipment industry oil sucker rod body polisher device; Figure 4 The local enlarged structure schematic diagram at A; Figure 6 The structure schematic diagram of the liquid feeding hose and the guide roller; Figure 7 The structure schematic diagram of the intelligent manufacturing equipment industry oil sucker rod body polisher device; Figure 6 The local enlarged structure schematic diagram at B; Figure 8 The structure schematic diagram of the servo motor and the second rotating wheel; Figure 9 The structure schematic diagram of the through shaft and the horizontal slide; Figure 10 The structure schematic diagram of the horizontal reset spring and the first empty tooth area; Figure 11 The structure schematic diagram of the second rotating wheel.

[0018] In the drawings, the component list represented by each reference numeral is as follows: 1, mounting frame; 2, servo motor; 3, horizontal slide; 4, vertical pressure frame; 5, winding roller; 6, polishing belt; 7, first rotating wheel; 8, first fan tooth area; 9, first empty tooth area; 10, horizontal reset spring; 11, horizontal rack plate; 12, belt shaft; 13, second rotating wheel; 14, second fan tooth area; 15, second empty tooth area; 16, vertical rack plate; 17, vertical reset spring; 18, first tensioning platform; 19, first tensioning spring; 20, first tensioning wheel; 21, through shaft; 22, slide shaft; 23, first incomplete gear; 24, reciprocating gear; 25, guide roller; 26, brush roller; 27, cleaning spray hole; 28, cooling spray pipe; 29, liquid storage tank; 30, liquid feeding hose; 31, conversion motor; 32, second incomplete gear; 33, conversion gear; 34, second tensioning platform; 35, tensioning roller; 36, adjusting push rod; 37, microcontroller; 38, visual probe; 39, third tensioning platform; 40, second tensioning wheel; 41, second tensioning spring. DETAILED DESCRIPTION

[0019] The principles and features of the present application are described below in conjunction with the accompanying drawings, and the examples are used to explain the present application and are not intended to limit the scope of the present application.

[0020] The present application provides the following preferred embodiments: As Figures 1-11 The intelligent manufacturing equipment industry's oil sucker rod body polisher device is shown in the drawings, which comprises a mounting frame 1 and a servo motor 2, and two groups of symmetrical positioning installation holes are formed in the mounting frame 1; The device can be quickly fixed on different specifications of polishing load platforms through the two groups of symmetrical positioning installation holes, ensuring the stability of the structure after installation, avoiding the decrease of the polishing accuracy of the sucker rod due to the deviation of the device during the polishing process, and improving the adaptability and installation efficiency of the device; The output shaft end of the servo motor 2 is provided with a horizontal variable stroke part, and a horizontal sliding frame 3 connected with the variable stroke part and horizontally reciprocating is connected to the horizontal variable stroke part; The horizontal variable stroke part comprises a first rotating wheel 7 mounted on the output shaft end of the servo motor 2, three first fan tooth areas 8 and three first toothless areas 9 are alternately arranged on the first rotating wheel 7 in the circumferential direction, the horizontal sliding frame 3 is slidingly connected with the mounting frame 1, and a plurality of horizontal return springs 10 are mounted between the horizontal sliding frame 3 and the mounting frame 1, a horizontal rack plate 11 is mounted on the horizontal sliding frame 3, the three first fan tooth areas 8 are alternately engaged with the horizontal rack plate 11, the central angles of the three first fan tooth areas 8 respectively increase by 20° in the clockwise direction, and the central angles of the three first toothless areas 9 are the same; In a preferred embodiment, the central angles of the three fan tooth areas respectively are 40°, 60° and 80° in the clockwise direction, and the central angles of the three first toothless areas 9 are all 60°; When the first toothless area 9 moves to the corresponding position of the horizontal rack plate 11, the first toothless area 9 loses the meshing connection relationship with the horizontal rack plate 11; When the servo motor 2 drives the first rotating wheel 7 to rotate, the three first fan tooth areas 8 with the central angles increasing by 20° are alternately engaged with the horizontal rack plate 11, and the variable frequency reciprocating movement of the horizontal sliding frame 3 is realized in cooperation with the horizontal return spring 10, the central angle of the first fan tooth area 8 is greater, the engagement driving time is longer, and the moving stroke of the horizontal sliding frame 3 is greater; The fixed stroke polishing is easy to cause the rod body surface to have consistent grinding marks due to single trajectory, forming a stress concentration point, and it is difficult to consider the polishing requirements of different parts; The variable stroke reciprocating movement adjusts the action range of the polishing abrasive belt 6 dynamically, so that the grinding marks are distributed in a staggered manner, and the stress is effectively dispersed; At the same time, the polishing time is prolonged for the rough parts by using long stroke to ensure the material removal effect, and the polishing intensity is controlled for the fine parts by using short stroke to ensure the accuracy, which greatly reduces the roughness deviation of the rod body surface and improves the quality consistency of batch polishing products.

[0021] The variable stroke reciprocating movement does not need to frequently change polishing parameters or equipment accessories for adapting to different parts polishing requirements. Through the variable stroke design, once clamping, multi-position adaptive polishing is realized, and the process switching time is reduced. Finally, when the polishing belt 6 is working, the polishing belt 6 can move along the polishing position of the oil sucker rod with variable stroke reciprocating movement; The reciprocating movement perpendicular to the direction of the polishing belt 6 can cause the polishing belt 6 to produce a slight pressing and rebounding effect on the surface of the sucker rod during polishing. Especially for the possible slight concave-convex on the surface of the rod body and the slight unevenness left by casting, the vertical displacement can compensate for it to ensure that the polishing belt 6 is fully attached to the surface of the rod body, avoiding local polishing omissions caused by not being tightly attached; The reciprocating movement perpendicular to the direction of the polishing belt 6 can evenly disperse the wear of the polishing belt 6, prolonging the service life; In traditional polishing, the contact area between the polishing belt 6 and the rod body is fixed, which can easily cause local rapid wear of the polishing belt 6, which needs to be frequently replaced. The reciprocating movement in the vertical direction makes the contact point of the polishing belt 6 dynamically change in the vertical direction, avoiding the continuous stress wear of a single area, making the overall wear of the polishing belt 6 more uniform, prolonging the service life of the polishing belt 6, and reducing the replacement frequency and cost of consumables.

[0022] The movement perpendicular to the direction of the polishing belt 6 can produce a slight vibration effect during polishing. Combined with the liquid distribution cleaning system, it can more efficiently shake off the grinding dust attached to the surface of the polishing belt 6, avoiding the secondary scratches caused by the repeated rolling of the grinding dust on the surface of the rod body by the polishing belt 6; At the same time, this slight vibration can also promote the flow of cleaning liquid in the polishing area, enhance the cooling and cleaning effect, and prevent the polishing precision from being reduced due to the residual grinding dust.

[0023] The vertical pressure frame 4 is slidingly connected to the horizontal sliding frame 3, and a vertical stroke component for driving the vertical pressure frame 4 to move with variable stroke reciprocating movement is fixedly installed; The vertical stroke component includes a shaft 12 and a second rotating wheel 13 rotatably connected to the horizontal sliding frame 3. The output shaft end of the servo motor 2 is transmissionally connected with a first synchronous belt, the shaft 12 is transmissionally connected with the first synchronous belt, and the shaft 12 and the second rotating wheel 13 are both provided with bevel gears, and the two bevel gears are orthogonally engaged; In the circumferential direction, two second fan tooth areas 14 and two second toothless areas 15 are alternately arranged on the second rotating wheel 13, a vertical rack plate 16 is installed on the vertical pressure frame 4, the two second fan tooth areas 14 are alternately engaged with the vertical rack plate 16, and two vertical return springs 17 are installed between the vertical pressure frame 4 and the horizontal sliding frame 3; The central angles of the two second toothed sectors 14 are 40° apart, the central angles of the two second toothless sectors 15 are the same, and the mounting frame 1 is provided with a first tensioning member for tensioning the first synchronous belt; In a preferred embodiment, the central angles of the two second toothed sectors 14 are 40° and 80° respectively, and the central angles of the two second toothless sectors are both 120°; When the second toothless sector moves to the position of cooperation with the vertical rack plate 16, the second toothless sector is disengaged from the vertical rack plate 16; The first toothed sector 8 and the second toothed sector 14 are both provided with teeth; The first toothed sector 8, the second toothed sector 14, the vertical rack plate 16 and the horizontal rack plate 11 are all provided with a rubber buffer coating for reducing the impact of the teeth, and the rubber buffer coating is a polyurethane elastomer material; The servo motor 2 drives the second rotating wheel 13 to rotate through the first synchronous belt and the bevel gear, the two second toothed sectors 14 with central angles 40° apart are alternately engaged with the vertical rack plate 16, and the vertical pressure frame 4 is realized variable frequency lifting by combining the vertical return spring 17: When the second toothed sector 14 with a large central angle is driven, the vertical pressure frame 4 has a large amplitude of downward pressure and stable pressure, which is suitable for strong polishing on the surface of the oil pumping rod; When the second toothed sector 14 with a small central angle is driven, the amplitude of downward pressure is small and the frequency is high, which is suitable for fine grinding; At the same time, the orthogonal engagement of the bevel gear realizes the 90° conversion of the power direction, and simplifies the transmission structure; The setting of the two second toothless sectors 15 provides a short suspension buffer time for the vertical pressure frame 4, avoids the continuous pressure leading to excessive wear of the polishing belt 6, and prolongs the service life of the polishing belt 6.

[0024] And with the change of the displacement stroke of the vertical pressure frame 4, the polishing pressure of the polishing belt 6 on the oil pumping rod can be reciprocally changed, so as to improve the polishing efficiency and effect by reciprocally changing the polishing pressure; The first tensioning member includes a first tensioning table 18 slidingly connected to the mounting frame 1, a first tensioning spring 19 installed between the first tensioning table 18 and the mounting frame 1, and a first tensioning wheel 20 rotatably installed on the first tensioning table 18, and the first tensioning wheel 20 is in transmission connection with the first synchronous belt; The first tensioning spring 19 pushes the first tensioning table 18 to slide through the elastic force, so that the first tensioning wheel 20 always tightly presses the first synchronous belt, automatically compensates the relaxation amount of the belt due to long-term operation, ensures the stable transmission efficiency between the belt and the belt shaft 12 and the output shaft of the servo motor 2, avoids the insufficient power or disorder of the horizontal variable stroke member, the vertical variable stroke member and the reciprocating driving system caused by slipping, and ensures the synchronization and reliability of the movement of each execution mechanism; Two winding rollers 5 are rotatably installed on the vertical pressing frame 4, and a reciprocating driving system is arranged to drive the two winding rollers 5 to rotate synchronously and reciprocally, and the polishing abrasive belt 6 is wound between the two winding rollers 5; The reciprocating driving system comprises a through shaft 21 rotatably connected to the horizontal sliding frame 3 and a sliding shaft 22 rotatably connected to the vertical pressing frame 4, the through shaft 21 is in driving connection with the first synchronous belt, and the sliding shaft 22 is in linkage with the through shaft 21; The tail of the sliding shaft 22 is provided with a square section, and the inside of the through shaft 21 is fixedly provided with a square sliding groove with two open ends and in sliding connection with the square section, and the cross sections of the square sliding groove and the square section are both regular hexagons; Two first incomplete gears 23 are rotatably installed on the vertical pressing frame 4, the two first incomplete gears 23 are in linkage through the second synchronous belt, the sliding shaft 22 is in driving connection with the second synchronous belt, and a reciprocating gear 24 is installed on one winding roller 5, the two first incomplete gears 23 are alternately engaged with the reciprocating gear 24.

[0025] The central angles of the effective engagement sections of the two first incomplete gears 23 are both 140°, and the installation phases of the two first incomplete gears 23 on the vertical pressing frame 4 are 180° apart, and the two first incomplete gears 23 are arranged on the two sides of the reciprocating gear 24 respectively; In a preferred embodiment, the radius of the first incomplete gear 23 is set to be 6 times the radius of the reciprocating gear 24; On the one hand, the through shaft 21 is matched with the square section of the sliding shaft 22 through the regular hexagonal square sliding groove, realizing the rotation power transmission and axial sliding adaptation, and during work, the through shaft 21 is rotated along with the first synchronous belt and drives the sliding shaft 22 to rotate, and can also adapt to the lifting displacement of the vertical pressing frame 4, solving the problem of cooperative transmission of vertical motion and rotation power; On the other hand, the two first incomplete gears 23 with a phase difference of 180° and an effective engagement angle of 140° are alternately engaged with the reciprocating gear 24, driving the winding roller 5 to drive the polishing abrasive belt 6 to make reciprocating motion of forward rotation, pause, reverse rotation, and pause, and cooperating with the 6 times radius ratio design, the slow rotation speed of the first incomplete gear 23 can realize the fast rhythm reversing of the reciprocating gear 24, so that the polishing track of the polishing abrasive belt 6 on the sucker rod is more uniform, avoiding the problem of consistent rod surface texture and stress concentration caused by single direction polishing; Meanwhile, the pause in the non-engagement stage can make the liquid distribution and cleaning system fully act on the polishing abrasive belt 6, improving the cooling and cleaning effect; The liquid distribution and cleaning system is arranged on the vertical pressing frame 4 to synchronously rotate and brush the polishing abrasive belt 6 and water-cool the polishing abrasive belt 6; The liquid distribution cleaning system comprises two guide rollers 25 and two brush rollers 26 rotatably connected to the vertical press frame 4, the two guide rollers 25 are in transmission connection with the polishing belt 6, a group of bristles are installed on the two brush rollers 26 and tightly press against the polishing belt 6, a third synchronous belt is in transmission connection with each of the two guide rollers 25, the two third synchronous belts are in transmission connection with the two brush rollers 26 respectively, a liquid distribution cavity is formed in the interior of each of the two brush rollers 26, a group of cleaning spray holes 27 are formed in each of the two brush rollers 26 and are in communication with the corresponding liquid distribution cavity, a cooling spray pipe 28 and a liquid storage tank 29 are installed on the vertical press frame 4, atomizing nozzles are uniformly distributed on the bottom surface of the cooling spray pipe 28, a pump body is in communication with the liquid storage tank 29, a liquid delivery hose 30 is in communication with the liquid outlet of the pump body, and the two liquid distribution cavities and the cooling spray pipe 28 are in communication with the liquid delivery hose 30; The above scheme realizes the collaborative work of polishing, cleaning and cooling in one body: When the polishing belt 6 moves, the guide roller 25 is driven to rotate, the brush roller 26 is driven to rotate synchronously through the third synchronous belt, the bristles mechanically clean the grinding dust on the surface of the polishing belt 6, the pump body delivers the cleaning liquid in the liquid storage tank 29 to the liquid distribution cavity of the brush roller 26, the cleaning liquid is uniformly sprayed on the surface of the polishing belt 6 through the cleaning spray hole 27, realizing double cleaning of rotary brushing and liquid washing, and avoiding the influence of residual grinding dust on the polishing precision; The atomizing nozzles of the cooling spray pipe 28 directly spray the atomized cleaning liquid on the polishing contact area, quickly taking away the heat generated during polishing, preventing the oil rod from deforming due to high temperature or the polishing belt 6 from failing due to overheating; The guide roller 25 simultaneously plays a role in tensioning and trajectory guiding of the polishing belt 6, ensuring the stable operation of the polishing belt 6 and further improving the polishing stability; The vertical press frame 4 is further provided with an intelligent conversion system, which converts the use area of the polishing belt 6 in a directional manner through visual detection feedback.

[0026] The conversion system comprises a conversion motor 31 installed on the vertical press frame 4, a second incomplete gear 32 is installed on the output shaft end of the conversion motor 31, a conversion gear 33 adapted to mesh with the second incomplete gear 32 is installed on the other winding roller 5, the effective meshing section of the second incomplete gear 32 corresponds to a central angle of 90°, a second tensioning table 34 is slidably connected to the vertical press frame 4, a tensioning roller 35 is rotatably installed on the second tensioning table 34 and is in transmission connection with the second synchronous belt, an adjusting push rod 36 is installed on the vertical press frame 4, the movable end of the adjusting push rod 36 is fixedly connected to the second tensioning table 34, a microcontroller 37 is installed on the liquid storage tank 29, two visual probes 38 are installed on the vertical press frame 4, the data ends of the two visual probes 38 are opposite to the polishing belt 6, and the data end of the visual probe 38, the conversion motor 31 and the electric control end of the adjusting push rod 36 are in data connection with the microcontroller 37.

[0027] The wear state of the polishing belt 6 is collected in real time by the visual probe 38, and the data is transmitted to the microcontroller 37; If the microcontroller 37 determines that the wear of a certain area exceeds the standard after analysis, it will first control the adjusting push rod 36 to move the second tensioning table 34, and through the tensioning roller 35, the second synchronous belt is loosened and loses the driving force, and then the conversion motor 31 drives the second incomplete gear 32 to rotate, and through the 90° meshing with the conversion gear 33, the winding roller 5 is driven to rotate, realizing the directional switching of the un-worn area of the polishing belt 6, avoiding the decrease of polishing quality caused by local wear of the polishing belt 6, reducing the replacement frequency of the polishing belt 6, and reducing the production cost; The system realizes intelligent monitoring and self-adaptive adjustment of the use of the polishing belt 6, breaking through the limitations of traditional manual judgment and replacement; It also includes two third tensioning tables 39 slidingly connected to the vertical pressing frame 4, the side surfaces of the two third tensioning tables 39 are each provided with a second tensioning spring 41 limited by the vertical pressing frame 4, and the two third tensioning tables 39 are each provided with a second tensioning roller 40 rotatably installed thereon, and the two second tensioning rollers 40 are each in driving connection with the polishing belt 6.

[0028] The two third tensioning tables 39 are always exerting a stable tensioning force on the polishing belt 6 through the second tensioning roller 40 under the elastic action of the second tensioning spring 41: On the one hand, it can compensate for the relaxation of the polishing belt 6 caused by long-term use or area conversion, ensure that the polishing belt 6 is tightly attached to the surface of the sucker rod, and ensure that the polishing pressure is uniform; On the other hand, when the polishing belt 6 appears slight shaking, the buffering action of the second tensioning spring 41 can quickly suppress the vibration, avoid the unevenness of the rod surface caused by the jumping of the polishing belt 6, and further improve the stability and polishing precision of the polishing process.

[0029] The method for using the oil sucker rod polishing device of the intelligent manufacturing equipment industry comprises the following steps: SS1: Device installation and debugging, fix the mounting frame 1 to the polishing work platform through the positioning structure, check the connection state of the servo motor 2, the horizontal variable stroke part, the vertical variable stroke part and each transmission part, debug the movement flexibility of the horizontal slide 3 and the vertical pressing frame 4, and ensure that the polishing belt 6 on the winding roller 5 is tensioned and positioned in the middle; SS2: Workpiece clamping and positioning, fix the oil sucker rod to be polished to the corresponding work area of the polishing belt 6, adjust the posture of the sucker rod, and make the part to be polished aligned and attached to the surface of the polishing belt 6; SS3: Parameter presetting and starting, according to the polishing demand of the sucker rod, preset the rotation speed of the servo motor 2, the stroke parameters of the horizontal variable stroke part and the pressure parameters of the vertical variable stroke part through the control terminal, and start the servo motor 2 and each system power supply; SS4: composite polishing operation, servo motor 2 drives horizontal variable range member to drive horizontal slide 3 to realize variable range horizontal reciprocating movement, at the same time vertical variable range member drives vertical pressing frame 4 to realize variable range vertical reciprocating movement, reciprocating drive system drives two winding rollers 5 to rotate synchronously, so that polishing sand belt 6 realizes horizontal and vertical cooperative variable parameter polishing on sucker rod; SS5: auxiliary cleaning and cooling, during polishing, cloth liquid cleaning system is started synchronously to realize rotary brush cleaning on polishing sand belt 6, and water cooling structure is used to cool polishing area and sand belt; SS6: sand belt intelligent conversion, intelligent conversion system realizes real-time monitoring on polishing sand belt 6 wear state through visual detection module, when detecting that local wear exceeds the standard, automatically drives conversion mechanism to switch the use area of polishing sand belt 6 in a directional way; SS7: operation end and reset, after polishing, servo motor 2 and power supply of each system are turned off, the sucker rod is taken out, the surface of the device is cleaned, and horizontal slide 3 and vertical pressing frame 4 are reset to the initial position.

[0030] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A grinding device for oil sucker rods in the intelligent manufacturing equipment industry, comprising a mounting frame (1) and a servo motor (2), characterized in that: The output shaft end of the servo motor (2) is provided with a horizontal stroke changer. A horizontal slide (3) with variable stroke and horizontal reciprocating movement is connected to the horizontal stroke changer. A vertical pressure frame (4) is slidably connected to the horizontal slide (3), and a vertical stroke changer is fixedly installed to drive the vertical pressure frame (4) to move back and forth with variable stroke. Two rollers (5) are rotatably installed on the vertical pressure frame (4), and a reciprocating drive system is provided to drive the two rollers (5) to rotate synchronously back and forth. A sanding belt (6) is wound between the two rollers (5). A liquid cleaning system for synchronously rotating and water-cooling the sanding belt (6) is provided on the vertical pressure frame (4). An intelligent conversion system is also provided on the vertical pressure frame (4). The intelligent conversion system uses visual detection feedback to directionally convert the usage area of ​​the sanding belt (6).

2. The oil sucker rod grinding device for the intelligent manufacturing equipment industry according to claim 1, characterized in that: The horizontal rangefinder includes a first rotating wheel (7) installed on the output shaft end of the servo motor (2). The first rotating wheel (7) has three first sector tooth areas (8) and three first empty tooth areas (9) alternately arranged along the circumferential direction. The horizontal slide (3) is slidably connected to the mounting frame (1), and several horizontal return springs (10) are installed between the horizontal slide (3) and the mounting frame (1). A horizontal rack plate (11) is installed on the horizontal slide (3). The three first sector tooth areas (8) alternately mesh with the horizontal rack plate (11). In the clockwise direction, the central angles corresponding to the three first sector tooth areas (8) increase by 20°. The central angles corresponding to the three first empty tooth areas (9) are the same.

3. The oil sucker rod grinding device for the intelligent manufacturing equipment industry according to claim 1, characterized in that: The vertical variable stroke component includes a belt shaft (12) and a second wheel (13) rotatably connected to the horizontal slide (3). The output shaft of the servo motor (2) is connected to a first synchronous belt. The belt shaft (12) is connected to the first synchronous belt. Both the belt shaft (12) and the second wheel (13) are equipped with bevel gears. The two bevel gears mesh orthogonally along the circumferential direction. The second wheel (13) is alternately provided with two second sector tooth areas (14) and two second toothless areas (15). The vertical pressure frame (4) is equipped with a vertical rack plate (16). The two second sector tooth areas (14) alternately mesh with the vertical rack plate (16). Several vertical return springs (17) are installed between the vertical pressure frame (4) and the horizontal slide (3). The central angles corresponding to the two second sector tooth areas (14) differ by 40°. The central angles corresponding to the two second toothless areas (15) are the same. The mounting frame (1) is provided with a first tensioning member to tension the first synchronous belt.

4. The oil sucker rod grinding device for the intelligent manufacturing equipment industry according to claim 3, characterized in that: The first tensioning member includes a first tensioning platform (18) slidably connected to the mounting bracket (1), a first tensioning spring (19) is installed between the first tensioning platform (18) and the mounting bracket (1), a first tensioning wheel (20) is rotatably installed on the first tensioning platform (18), and the first tensioning wheel (20) is connected to the first synchronous belt drive.

5. The oil sucker rod grinding device for the intelligent manufacturing equipment industry according to claim 1, characterized in that: The reciprocating drive system includes a through shaft (21) rotatably connected to a horizontal slide (3) and a slide shaft (22) rotatably connected to a vertical pressure frame (4). The through shaft (21) is connected to a first synchronous belt and the slide shaft (22) is linked to the through shaft (21). Two first incomplete gears (23) are rotatably mounted on the vertical pressure frame (4). The two first incomplete gears (23) are linked by a second synchronous belt. The slide shaft (22) is connected to the second synchronous belt. A reciprocating gear (24) is mounted on a roller (5). The two first incomplete gears (23) alternately mesh with the reciprocating gear (24).

6. The oil sucker rod grinding device for the intelligent manufacturing equipment industry according to claim 5, characterized in that: The tail of the sliding shaft (22) is provided with a square section, and the inside of the through shaft (21) is fixedly provided with a square groove with openings at both ends and slidably connected to the square section. The cross-sections of the square groove and the square section are both regular hexagons. The center angles corresponding to the effective meshing sections on the two first incomplete gears (23) are both 140°, and the installation phase difference between the two first incomplete gears (23) on the vertical pressure frame (4) is 180°. The two first incomplete gears (23) are respectively set on both sides of the reciprocating gear (24).

7. The oil sucker rod grinding device for the intelligent manufacturing equipment industry according to claim 6, characterized in that: The liquid cleaning system includes two guide rollers (25) and two brush rollers (26) rotatably connected to a vertical pressure frame (4). Both guide rollers (25) are connected to a sanding belt (6). Each brush roller (26) has a set of bristles tightly pressed against the sanding belt (6). A third synchronous belt is connected to each guide roller (25), and these third synchronous belts are respectively connected to the two brush rollers (26). The interior of each brush roller (26) contains... The device has a liquid distribution chamber and a set of cleaning nozzles (27) on each of the two brush rollers (26). The cleaning nozzles (27) are connected to the corresponding liquid distribution chambers. The vertical pressure frame (4) is equipped with a cooling nozzle (28) and a liquid storage tank (29). The bottom surface of the cooling nozzle (28) is evenly distributed with atomizing nozzles. The liquid storage tank (29) is connected to a pump body. The outlet port of the pump body is connected to a liquid delivery hose (30). Both liquid distribution chambers and the cooling nozzle (28) are connected to the liquid delivery hose (30).

8. The oil sucker rod grinding device for the intelligent manufacturing equipment industry according to claim 7, characterized in that: The conversion system includes a conversion motor (31) mounted on a vertical pressure frame (4). A second incomplete gear (32) is mounted on the output shaft end of the conversion motor (31). A conversion gear (33) adapted to mesh with the second incomplete gear (32) is mounted on another roller (5). The effective meshing section of the second incomplete gear (32) has a corresponding center angle of 90°. A second tensioning table (34) is slidably connected to the vertical pressure frame (4). A tensioning roller (35) is rotatably mounted on the second tensioning table (34). The vertical pressure frame (4) is connected to the second synchronous belt drive. An adjusting push rod (36) is installed on the vertical pressure frame (4). The movable end of the adjusting push rod (36) is fixedly connected to the second tensioning table (34). A microcontroller (37) is installed on the liquid storage tank (29). Two vision probes (38) are installed on the vertical pressure frame (4). The data terminals of the two vision probes (38) are facing the grinding sand belt (6). The data terminals of the vision probes (38), the conversion motor (31), and the electrical control terminals of the adjusting push rod (36) are all connected to the microcontroller (37).

9. The oil sucker rod grinding device for the intelligent manufacturing equipment industry according to claim 1, characterized in that: It also includes two third tensioning platforms (39) that are slidably connected to the vertical pressure frame (4). The sides of the two third tensioning platforms (39) are each equipped with a second tensioning spring (41) that is limited by the vertical pressure frame (4). The two third tensioning platforms (39) are each rotatably equipped with a second tensioning wheel (40). The two second tensioning wheels (40) are both connected to the sanding belt (6) for transmission.

10. The method of using the oil sucker rod grinding device for the intelligent manufacturing equipment industry according to any one of claims 1-9, characterized in that, Includes the following steps: SS1: Installation and debugging of the device. Fix the mounting frame (1) to the grinding platform through the positioning structure. Check the connection status of the servo motor (2), horizontal variable stroke component, vertical variable stroke component and each transmission component. Debug the movement flexibility of the horizontal slide (3) and vertical pressure frame (4) to ensure that the grinding sand belt (6) on the roller (5) is taut and centered. SS2: Workpiece clamping and positioning, fix the oil sucker rod to be ground to the corresponding working area of ​​the grinding belt (6), adjust the sucker rod posture so that the part to be ground is aligned and fits with the surface of the grinding belt (6); SS3: Parameter preset and start-up. According to the requirements of sucker rod grinding, the servo motor (2) speed, the stroke parameters of the horizontal stroke converter and the pressure parameters of the vertical stroke converter are preset by the control terminal, and the servo motor (2) and the power supply of each system are started. SS4: Composite grinding operation, servo motor (2) drives horizontal variable stroke component to drive horizontal slide (3) to achieve horizontal reciprocating movement with variable stroke, while vertical variable stroke component drives vertical pressure frame (4) to perform vertical reciprocating movement with variable stroke, reciprocating drive system drives two rollers (5) to rotate synchronously, so that grinding sand belt (6) performs horizontal and vertical coordinated variable parameter grinding on sucker rod; SS5: Auxiliary cleaning and cooling. During the polishing process, the liquid cleaning system is started simultaneously to perform rotary brush cleaning on the polishing belt (6) and to cool the polishing area and the belt through the water cooling structure. SS6: Intelligent belt conversion. The intelligent conversion system monitors the wear status of the polishing belt (6) in real time through the vision detection module. When local wear exceeds the standard, the conversion mechanism is automatically driven to switch the usage area of ​​the polishing belt (6). SS7: End of work and reset. After grinding is completed, turn off the servo motor (2) and the power supply of each system, remove the sucker rod, clean the grinding debris on the surface of the device, and reset the horizontal slide (3) and vertical pressure frame (4) to their initial positions.

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