A kind of anticorrosive steel pipe end polishing equipment

Abstract

A kind of anticorrosion steel pipe end polishing equipment, including mobile car body, workpiece support rotating mechanism and polishing execution mechanism;The workpiece support rotating mechanism is arranged two groups, and rubber drive wheel assembly is arranged in each group;The mobile car body is composed of two parts, and is arranged in the front and back of workpiece support rotating mechanism, window is opened in the two vertical surfaces of its front and back two parts, fixed platform and workpiece chuck are arranged in each part, the workpiece chuck is located in the area opposite to window, the two ends of the steel pipe workpiece to be polished can be pressed tightly by the front and back two groups of workpiece chuck by the front and back movement of mobile car body, so that workpiece chuck is rotated integrally with steel pipe workpiece;The polishing execution mechanism is matched with fixed platform, and the outer wall of the two ends of the rotating steel pipe workpiece is polished by polishing execution mechanism.Processing of the two ends of 3PE anticorrosion steel pipe is simultaneously polished by the present application, and the purpose of improving work efficiency and ensuring product quality is achieved.

Description

Technical Field

[0001] This invention relates to a production equipment for anti-corrosion steel pipes, and more particularly to an end grinding equipment suitable for 3PE anti-corrosion steel pipes. Background Technology

[0002] 3PE anti-corrosion steel pipes have good corrosion resistance, water vapor permeability resistance and mechanical properties. Currently, they are used in high-rise building water supply, heating network heating, gas and oil transportation, chemical pharmaceutical and printing and dyeing industries to transport corrosive media. With the advancement and expansion of technology, they will have even broader development and application prospects.

[0003] The base material of 3PE anti-corrosion steel pipe is steel pipe, and its outer wall is coated with polyethylene (3PE) anti-corrosion coating. In order to facilitate the welding operation between adjacent pipe sections during on-site construction, the two ends of the steel pipe need to be ground during its prefabrication process. Therefore, it is necessary to design a set of 3PE anti-corrosion steel pipe end grinding equipment with high working efficiency, reliable performance and guaranteed product quality. Summary of the Invention

[0004] This invention provides a grinding equipment for the ends of anti-corrosion steel pipes. By optimizing the design of the moving vehicle, the workpiece support and rotation mechanism, and the grinding execution mechanism, it aims to achieve simultaneous grinding of both ends of 3PE anti-corrosion steel pipes, thereby improving work efficiency and ensuring product quality.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A steel pipe end grinding device includes a mobile vehicle, a workpiece support and rotation mechanism, and a grinding execution mechanism. The workpiece support and rotation mechanism consists of two sets arranged along the workpiece axis, each set equipped with a rubber drive wheel assembly. These rubber drive wheel assemblies drive the steel pipe workpiece to rotate around its own axis. The mobile vehicle consists of front and rear parts arranged on the front and rear sides of the workpiece support and rotation mechanism. Windows communicating with the outside are opened on two opposite facades of the front and rear parts. A fixed platform and a workpiece clamp are installed in each part of the mobile vehicle. The workpiece clamp is located in the area opposite the window. By moving the mobile vehicle back and forth, the two sets of workpiece clamps press the two ends of the steel pipe workpiece to be ground together, causing the workpiece clamp and the steel pipe workpiece to rotate as a unit. The grinding execution mechanism is fitted with the fixed platform and grinds the outer walls of both ends of the rotating steel pipe workpiece.

[0007] The aforementioned anti-corrosion steel pipe end grinding equipment has a horizontal slide rail arranged along the front-back direction on the fixed platform; the grinding execution mechanism is equipped with a grinding wheel assembly and a front-back moving assembly, the front-back moving assembly is equipped with a slide table and a screw and nut transmission unit, the slide table and the nut in the screw and nut transmission unit are fixedly assembled, the bottom surface of the slide table is fitted with the horizontal slide rail on the fixed platform, the grinding wheel assembly is mounted on the slide table, and one end of the screw in the screw and nut transmission unit is fixedly assembled with the workpiece clamp.

[0008] The aforementioned anti-corrosion steel pipe end grinding equipment includes a grinding wheel assembly comprising a grinding motor, a belt drive unit, and a grinding wheel. The grinding motor is fixed on a slide table, and its output shaft is fixedly connected to the drive pulley of the belt drive unit. The driven pulley of the belt drive unit is mounted on the slide table via a shaft seat, and the grinding wheel is mounted on the axle of the driven pulley. The grinding wheel is located to the side and below the workpiece chuck.

[0009] The aforementioned anti-corrosion steel pipe end grinding equipment has clustered steel wires arranged around the circumference of the grinding wheel to form a wire brush grinding wheel.

[0010] The aforementioned anti-corrosion steel pipe end grinding equipment includes a mobile vehicle body with a vehicle body drive mechanism and a vehicle body moving guide rail. The vehicle body moving guide rail is fixed on a horizontal ground. The vehicle body drive mechanism includes a reduction motor, a drive shaft, and rollers. The reduction motor is installed on the outer wall of one end of the mobile vehicle body, and the output shaft of the reduction motor is fixedly connected to the drive shaft. Rollers are provided at both ends of the drive shaft and on both sides of the other end of the mobile vehicle body. The rollers are fitted with the vehicle body moving guide rail.

[0011] The aforementioned anti-corrosion steel pipe end grinding equipment is further equipped with a buffer spring and a spring limiting rod in the front and rear moving assembly; there are two sets of spring limiting rods, which are fixed on the slide table and arranged horizontally in the front and rear direction; the buffer spring is fitted onto the spring limiting rod, and its length is greater than the length of the spring limiting rod, and the two ends of the buffer spring respectively abut against the spring limiting blocks set on the slide table and the fixed platform.

[0012] The aforementioned anti-corrosion steel pipe end grinding equipment is equipped with a position sensor on the fixed platform and a sensing sleeve on the slide. The sensing sleeve is fixedly assembled with the nut in the screw nut transmission unit. Two sets of position sensors are set up and arranged opposite to the sensing sleeve, respectively for monitoring the position information of the front and rear ends of the sensing sleeve.

[0013] The aforementioned anti-corrosion steel pipe end grinding equipment includes a rubber drive wheel assembly comprising a rubber wheel, a servo motor, and a support base; two sets of rubber wheels are symmetrically arranged on the left and right sides, both mounted on the support base via wheel axles, and the two sets of rubber wheels rotate in the same direction under the drive of the servo motor.

[0014] The aforementioned anti-corrosion steel pipe end grinding equipment has a transparent observation window on the side wall of the mobile vehicle and an inspection door on the opposite side wall.

[0015] This invention provides a grinding device for the ends of anti-corrosion steel pipes. It uses a workpiece support and rotation mechanism to rotate the steel pipe workpiece around its own axis. The horizontal movement of the front and rear sections of the moving carriage causes workpiece clamps located on these sections to press the front and rear ends of the steel pipe workpiece together. The workpiece clamps and the steel pipe workpiece rotate as a unit. As they rotate, two sets of screw-nut transmission units in the front and rear sections of the moving carriage drive two sets of slides and grinding wheels forward or backward. When one set of position sensors detects the position information of the front end of the sensing sleeve, the control system issues a command. The grinding motor in the grinding wheel assembly drives the grinding wheel to rotate via a belt drive unit, grinding the outer walls of both ends of the steel pipe workpiece. When the other set of position sensors detects the position information of the rear end of the sensing sleeve, the servo motor in the rubber drive wheel assembly drives the steel pipe workpiece to rotate in the opposite direction, repeatedly grinding the areas to be processed at both ends of the steel pipe until the set requirements are met. Therefore, this invention achieves simultaneous grinding of both ends of 3PE anti-corrosion steel pipes, improving work efficiency and ensuring product quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention;

[0017] Figure 2 yes Figure 1 K-direction view;

[0018] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure of the middle AA section;

[0019] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure of the middle BB section;

[0020] Figure 5 yes Figure 2 The right-side view;

[0021] Figure 6 This is a schematic diagram of the working state of the present invention;

[0022] Figure 7 This is a schematic diagram of the rubber drive wheel assembly driving the steel pipe workpiece to rotate in the working state of the present invention;

[0023] Figure 8 This is a schematic diagram of a grinding wheel grinding the outer walls of both ends of a steel pipe workpiece.

[0024] Explanation of each label in the diagram:

[0025] 1 is the moving vehicle body; 1-1 is the observation window; 1-2 is the window; 1-3 is the maintenance door. 2 is the vehicle body drive mechanism; 2-1 is the geared motor; 2-2 is the roller; 2-3 is the drive shaft. 3 is the vehicle body moving guide rail. 4 is the rubber wheel. 5 is the support base. 6 is the servo motor. 7 is the steel pipe workpiece. 8 is the workpiece chuck. 9 is the grinding wheel. 10 is the belt drive unit. 11 is the grinding motor. 12 is the lead screw drive unit; 12-1 is the lead screw; 12-2 is the nut. 13 is the sensing sleeve. 14 is the fixed platform. 15 is the horizontal slide rail. 16 is the position sensor. 17 is the buffer spring. 18 is the spring limit rod. 19 is the slide table. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] See Figure 1. Figure 2 This invention provides a grinding device for the ends of anti-corrosion steel pipes, comprising a mobile vehicle body 1, a workpiece support and rotation mechanism, and a grinding execution mechanism. The workpiece support and rotation mechanism consists of two sets arranged along the workpiece axis, each set containing a rubber drive wheel assembly. Each rubber drive wheel assembly includes rubber wheels 4, a servo motor 6, and a support base 5. Two sets of rubber wheels 4 are symmetrically mounted on the support base 5, with their axles hinged to the support base 5. The two sets of rubber wheels 4 can rotate in the same direction under the drive of the servo motor 6. A steel pipe workpiece 7 is placed on the two sets of rubber wheels 4, supported and driven by the two sets of rubber wheels 4 to rotate around its own axis. The mobile vehicle body 1 consists of two parts, front and rear, arranged in front of the workpiece support and rotation mechanism. On the rear two sides, windows 1-2 are opened on two opposing facades of the front and rear parts of the mobile vehicle body 1, which are open to the outside. The windows 1-2 are circular windows. A fixed platform 14 and a workpiece clamp 8 are set in each part of the mobile vehicle body 1. The workpiece clamp 8 is located in the area opposite to the window 1-2. By moving the mobile vehicle body 1 back and forth, the two ends of the steel pipe workpiece 7 can be inserted into the corresponding mobile vehicle body 1 through the window 1-2. The two sets of workpiece clamps 8 in the front and rear parts of the mobile vehicle body 1 press the two ends of the steel pipe workpiece 7 to be ground, so that the two sets of workpiece clamps 8 and the steel pipe workpiece 7 rotate together. The grinding execution mechanism is equipped with the fixed platform 14, and the outer walls of the two ends of the rotating steel pipe workpiece 7 are ground by the grinding execution mechanism.

[0028] See Figure 1 , Figure 2 , Figure 5The anti-corrosion steel pipe end grinding equipment of the present invention has a transparent observation window 1-1 on the side wall of the mobile vehicle body 1, and an inspection door 1-3 on the opposite side wall for monitoring and maintaining the working status of the grinding actuator. Each part of the mobile vehicle body 1 is also provided with a vehicle body drive mechanism 2 and a vehicle body moving guide rail 3. The vehicle body moving guide rail 3 is fixed on a horizontal ground. The vehicle body drive mechanism 2 includes a reduction motor 2-1, a drive shaft 2-3 and rollers 2-2. The reduction motor 2-1 is installed on the outer wall of one end of the mobile vehicle body 1. The output shaft of the reduction motor 2-1 is fixedly connected to the drive shaft 2-3. Rollers 2-2 are provided at both ends of the drive shaft 2-3 and on both sides of the other end of the mobile vehicle body. The rollers 2-2 are fitted with the vehicle body moving guide rail 3. Under the drive of the reduction motor, the mobile vehicle body 1 can move horizontally back and forth through the cooperation of the rollers 2-2 and the vehicle body moving guide rail 3.

[0029] See Figure 3 , Figure 4 The anti-corrosion steel pipe end grinding equipment of the present invention has a horizontal slide rail 15 arranged along the front-back direction on its fixed platform 14; the grinding execution mechanism is provided with a grinding wheel assembly and a front-back moving assembly. The front-back moving assembly is provided with a slide table 19 and a screw and nut transmission unit 12. The slide table 19 is fixedly assembled with the nut 12-2 in the screw and nut transmission unit 12. The bottom surface of the slide table 19 is fitted with the horizontal slide rail 15 on the fixed platform 14. The grinding wheel assembly is installed on the slide table 19. One end of the screw 12-1 in the screw and nut transmission unit 12 is fixedly assembled with the workpiece chuck 8. When the steel pipe workpiece 7 and the workpiece chuck 8 rotate together, the workpiece chuck 8 can be moved through... The lead screw and nut transmission unit 12 drives the slide table 19 and the grinding wheel assembly to move back and forth. The grinding wheel assembly includes a grinding motor 11, a belt transmission unit 10, and a grinding wheel 9. The grinding motor 11 is fixed on the slide table 19, and its output shaft is fixedly connected to the driving pulley of the belt transmission unit 10. The driven pulley of the belt transmission unit 10 is mounted on the slide table 19 through a shaft seat. The grinding wheel 9 is installed on the axle of the driven pulley. The grinding wheel 9 is located to the side and below the workpiece chuck 8. The grinding wheel 9 has clustered steel wires arranged around its circumference to form a wire brush grinding wheel. The wire brush grinding wheel can be driven to rotate around its own axis by the grinding motor 11 and the belt transmission unit 10.

[0030] See Figure 3The anti-corrosion steel pipe end grinding equipment of the present invention, in order to ensure the smooth back-and-forth movement of the grinding wheel 9, also includes a buffer spring 17 and a spring limiting rod 18 in the back-and-forth movement assembly; there are two sets of spring limiting rods 18, which are fixed on the slide table 19 and arranged horizontally in the back-and-forth direction; there are also two sets of buffer springs 17, whose length is greater than the length of the spring limiting rod 18. The two sets of buffer springs 17 are respectively fitted onto the two sets of spring limiting rods 18, and the two ends of each set of buffer springs 17 abut against the spring limiting blocks set on the slide table 19 and the fixed platform 14. In order to ensure the consistency of the grinding area at both ends of each steel pipe workpiece 7, the present invention also includes a position sensor 16 on its fixed platform 14, and a sensing sleeve 13 on the slide table 19. The sensing sleeve 13 is fixedly assembled with the nut 12-2 in the screw nut transmission unit 12. Two sets of position sensors 16 are arranged opposite to the sensing sleeve 13 and are used to monitor the position information of the front and rear ends of the sensing sleeve 13.

[0031] See Figure 6 , Figure 7 , Figure 8 When grinding both ends of the steel pipe workpiece 7 using this invention, the workpiece support rotation mechanism can drive the steel pipe workpiece 7 to rotate around its own axis. The horizontal movement of the front and rear parts of the moving carriage 1 causes the workpiece clamps 8 arranged in the front and rear parts of the moving carriage 1 to press the front and rear ends of the steel pipe workpiece 7 together. Thus, the workpiece clamps and the steel pipe workpiece rotate as a unit. As the workpiece clamps 8 and the steel pipe workpiece 7 rotate, the two sets of screw and nut transmission units 12 in the front and rear parts of the moving carriage 1 respectively drive the two sets of slides 19 and the grinding wheels 9 to move forward or backward. When the first set of position sensors 16 detects the outer edge of the sensing sleeve 13, the grinding motor 11 operates, driving the grinding wheels 9 through the belt transmission unit 10. The machine operates, and begins grinding both ends of the steel pipe workpiece 7. As the steel pipe workpiece 7 and the workpiece chuck 8 continue to rotate, the nut 12-2 in the screw nut transmission unit 12 drives the slide table 19 and the grinding wheel 9 to continue moving forward or backward. When the second set of position sensors 16 detects the inner edge of the sensing sleeve 13, the servo motor 6 in the rubber drive wheel assembly drives the rubber wheel 4, the steel pipe workpiece 7, and the workpiece chuck 8 to rotate in opposite directions. The nut 12-2 in the screw nut transmission unit 12 drives the slide table 19 and the grinding wheel 9 to move in the opposite direction, thereby controlling the length of the grinding area at both ends of the steel pipe workpiece 7. The above process is repeated until the set requirements are met, and the grinding operation of the ends of the steel pipe workpiece 7 is completed.

Claims

1. A corrosion-proof pipe end grinding apparatus, characterized by: It includes mobile car body (1), workpiece support rotating mechanism and polishing execution mechanism; the workpiece support rotating mechanism is arranged along workpiece axis direction two groups, sets up rubber drive wheel assembly in each group, drives steel pipe workpiece (7) to rotate around own axis through rubber drive wheel assembly; the mobile car body (1) is composed of front and rear two parts, is arranged in the front and rear two sides of workpiece support rotating mechanism, is set up in the two vertical surfaces of its front and rear two parts opposite two windows (1-2) with the outside, is set up fixed platform (14) and workpiece chuck (8) in each part of mobile car body (1), the workpiece chuck (8) is located in the area opposite window (1-2), can be through the front and rear movement of mobile car body (1), by the front and rear two groups of workpiece chuck (8) the steel pipe workpiece (7) to be polished both ends are pressed tightly, make workpiece chuck (8) and steel pipe workpiece (7) integral rotation;The polishing execution mechanism is matched with fixed platform (14), and the outer wall of the rotating steel pipe workpiece (7) both ends is polished by polishing execution mechanism; Horizontal slide rail (15) is arranged on the fixed platform (14) along the front and rear direction;The polishing execution mechanism is provided with polishing wheel assembly and front and rear moving assembly, the front and rear moving assembly is provided with slide table (19) and screw nut transmission unit (12), the slide table (19) is fixedly assembled with the nut (12-2) in the screw nut transmission unit (12), the bottom surface of the slide table (19) is matched with the horizontal slide rail (15) on the fixed platform (14), the polishing wheel assembly is installed on the slide table (19), one end of the screw rod (12-1) in the screw nut transmission unit (12) is fixedly assembled with the workpiece chuck (8); The polishing wheel assembly includes polishing motor (11), belt transmission unit (10) and polishing wheel (9);The polishing motor (11) is fixed on the slide table (19), and the output shaft is fixedly connected with the driving pulley of the belt transmission unit (10);The driven pulley of the belt transmission unit (10) is installed on the slide table (19) through the shaft seat, and the polishing wheel (9) is installed on the wheel shaft of the driven pulley;The polishing wheel (9) is located below the side of the workpiece chuck (8); The front and rear moving assembly is also provided with buffer spring (17) and spring limiting rod (18);The spring limiting rod (18) is two groups, which are fixed on the slide table (19) and arranged horizontally along the front and rear direction;The buffer spring (17) is sleeved on the spring limiting rod (18), and the length of the buffer spring (17) is greater than that of the spring limiting rod (18), and the two ends of the buffer spring (17) respectively abut against the spring limiting blocks arranged on the slide table (19) and the fixed platform (14); The fixed platform (14) is also provided with a position sensor (16), and the slide table (19) is provided with a sensing sleeve (13);The sensing sleeve (13) is fixedly assembled with the nut (12-2) in the screw nut transmission unit (12);The position sensor (16) is provided with two groups, which are arranged opposite to the sensing sleeve (13) and are used for monitoring the position information of the two ends of the sensing sleeve (13). The rubber drive wheel assembly comprises a rubber wheel (4), a servo motor (6) and a support seat (5); the rubber wheels (4) are symmetrically arranged in two groups and are installed on the support seat (5) through wheel shafts, and the two groups of rubber wheels (4) rotate in the same direction under the drive of the servo motor (6); With the rotation of the workpiece chuck (8) and the steel pipe workpiece (7), the two groups of screw nut transmission units (12) in the front and rear two parts of the moving vehicle body (1) respectively drive the two groups of sliding tables (19) and polishing wheels (9) to move forward or backward, when the first group of position sensors (16) detect the outer edge of the sensing sleeve (13), the polishing motor (11) operates to drive the polishing wheel (9) to operate through the belt transmission unit (10), and the polishing process on both ends of the steel pipe workpiece (7) is started; with the continuous rotation of the steel pipe workpiece (7) and the workpiece chuck (8), the nut (12-2) in the screw nut transmission unit (12) drives the sliding table (19) and the polishing wheel (9) to continue to move forward or backward, when the second group of position sensors (16) detect the inner edge of the sensing sleeve (13), the servo motor (6) in the rubber drive wheel assembly drives the rubber wheel (4), the steel pipe workpiece (7) and the workpiece chuck (8) to rotate in the opposite direction, and the nut (12-2) in the screw nut transmission unit (12) drives the sliding table (19) and the polishing wheel (9) to move reversely, thereby controlling the length size of the polishing area of both ends of the steel pipe workpiece (7).

2. The apparatus of claim 1, wherein: Steel wires arranged in clusters are arranged on the circumference of the polishing wheel (9), forming a steel wire brush polishing wheel.

3. The apparatus of claim 1 wherein: The moving vehicle body (1) is also provided with a vehicle body driving mechanism (2) and a vehicle body moving guide rail (3); the vehicle body moving guide rail (3) is fixed on the horizontal ground; the vehicle body driving mechanism (2) comprises a reduction motor (2-1), a driving shaft (2-3) and a roller (2-2), the reduction motor (2-1) is installed on the outer wall of one end of the moving vehicle body (1), the output shaft of the reduction motor (2-1) is fixedly connected with the driving shaft (2-3), the rollers (2-2) are arranged on both ends of the driving shaft (2-3) and the two sides of the other end of the moving vehicle body, and the rollers (2-2) are matched with the vehicle body moving guide rail (3).

4. The apparatus of claim 1 wherein: An observation window (1-1) made of transparent material is arranged on the side wall of the moving vehicle body (1), and a maintenance door (1-3) is arranged on the other side wall opposite to the observation window (1-1).

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