Steel pipe outer welding seam synchronous belt mold sharpening machine

Abstract

The invention discloses a steel pipe outer welding seam synchronous belt mold sharpening machine, and relates to the technical field of grinding and polishing. The device comprises an electric control mechanism, a rack is arranged on the right side of the electric control mechanism, a cabinet is arranged on the edge of the top of the left side of the rack, a servo motor is arranged on the front face of the cabinet, and a three-jaw chuck is arranged on the side, away from the cabinet, of the output end of the servo motor; an electric push rod is fixedly installed at the bottom of the inner wall of the U-shaped groove of the rack. A U-shaped telescopic frame is fixedly installed at the top of the telescopic end of the electric push rod. A steel pipe needing to be ground is limited, propped against and ground through the two grinding rollers, so that the steel pipe can keep good stability in the welding seam grinding process, the steel pipe welding seam is prevented from shaking in the grinding process, the attachment degree of the grinding rollers and the steel pipe welding seam is prevented from being reduced, the grinding uniformity of the steel pipe welding seam is improved, and the grinding efficiency of the steel pipe welding seam is improved. And different weld joint grinding thicknesses are prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding and polishing, and particularly to a synchronous belt die grinding machine for the outer weld of steel pipes. Background Art

[0002] In the production process of steel pipes, after submerged arc welding with longitudinal seams, the outer weld needs to be ground to ensure the overall smoothness and quality of the finished steel pipes. The traditional method is usually manual grinding, which is difficult to ensure the grinding quality and increases the labor intensity of workers.

[0003] The patent with the patent announcement number CN218312397U discloses a fully automatic grinding machine for the outer weld of steel pipes, including a gantry mechanism, a grinding mechanism, and a fixed rotation mechanism. The abrasive belt grinding wheel structure includes a grinding wheel, a grinding motor, a grinding transmission rod, and an abrasive belt. The housing of the grinding motor is fixedly arranged on the first grinding support, the output shaft of the grinding motor is fixedly connected to the grinding transmission rod, the grinding wheel is fixedly connected to the grinding transmission rod, and the abrasive belt is wound around the circumferential wall of the grinding wheel. The grinding profiling device includes a profiling support and a profiling head. The profiling support is arranged on the first grinding support, and the profiling head is movably arranged on the profiling support. The lowest point of the profiling head is lower than the lowest point of the grinding wheel. This fully automatic grinding machine for the outer weld of steel pipes can automatically find the position of the steel pipe weld, automatically grind, and automatically extract weld feature data for quality evaluation, realizing full automation of the grinding operation, and having good industry competitiveness and market prospects.

[0004] However, this device still has deficiencies: This device realizes the automatic grinding work of steel pipes, but it is difficult to ensure the stability of the steel pipes during the grinding process of the steel pipes, increasing the possibility of the steel pipes shaking during the grinding process, easily reducing the fitting degree between the grinding mechanism and the steel pipe weld, resulting in different degrees of grinding of the steel pipe weld and affecting the overall grinding quality. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a synchronous belt die grinding machine for the outer weld of steel pipes, which solves the problems put forward in the above background art.

[0006] To achieve the above object, the present invention is realized by the following technical solutions: A synchronous belt die grinding machine for the outer weld of steel pipes, comprising an electrical control mechanism. On the right side of the electrical control mechanism, there is a frame. At the top edge of the left side of the frame, there is a control cabinet. On the front of the control cabinet, there is a servo motor. On the side of the output end of the servo motor away from the control cabinet, there is a three-jaw chuck. On the right side of the top of the frame, there is a grinding head mechanism slidably installed. At the bottom of the inner wall of the U-shaped groove of the frame, there is an electric push rod fixedly installed. On the top of the telescopic end of the electric push rod, there is a U-shaped telescopic frame fixedly installed. Inside the U-shaped telescopic frame, there is an anti-adhesion device to prevent debris from remaining. Around the U-shaped telescopic frame, there is an anti-spill device to accelerate the collection of debris. Inside the telescopic end of the U-shaped telescopic frame, there are two grinding rollers symmetrically and fixedly installed. Inside the front of the fixed end of the U-shaped telescopic frame, there is an electric slide rail fixedly installed. Inside the electric slide rail, there is a sliding frame slidably installed. Inside the sliding frame, there is a double-ball rod slidably installed through it. At equal intervals on the top of the electric slide rail, there are several U-shaped blocks fixedly installed.

[0007] According to the above technical solutions, the electrical control mechanism provides good operation control for the whole equipment. There is a U-shaped groove at the center of the top of the frame. There is a chute on one side of the back of the fixed end of the U-shaped telescopic frame. The grinding rollers are located below the three-jaw chuck. There is a spring for longitudinal reset between the inside of the sliding frame and the double-ball rod. The bottom of the inner wall of the U-shaped telescopic frame is on the movement track of the bottom of the double-ball rod. The arc surface at the bottom of the end of the U-shaped block close to the electric slide rail contacts the top of the double-ball rod. Place one end of the steel pipe inside the three-jaw chuck, and clamp and fix one end of the steel pipe through the three-jaw chuck. At the same time, the other end of the steel pipe abuts against one end of the grinding head mechanism. The bottom of the grinding head mechanism slides on the top of the frame to adjust the contact distance with the steel pipe. At the same time, start the electric push rod. The telescopic end of the electric push rod pushes the U-shaped telescopic frame upward. The U-shaped telescopic frame drives the grinding rollers to move towards the bottom of the steel pipe where the grinding head mechanism and the three-jaw chuck abut until the adjacent positions of the centers of the two grinding rollers contact the outer wall of the steel pipe. At this time, start the servo motor. The output end of the servo motor causes the three-jaw chuck to drive the steel pipe to rotate and contact the outer wall of the grinding roller for grinding; when the grinding work of the steel pipe weld starts, start the electric slide rail. The electric slide rail drives the sliding frame to move towards the center of the U-shaped telescopic frame and reset. Repeat this process. The sliding frame drives the double-ball rod to move synchronously. During the horizontal movement of the double-ball rod, it contacts the arc surface of the U-shaped block to generate a contact force, and the electric slide rail limits the U-shaped block. At this time, the double-ball rod moves downward inside the sliding frame and impacts the bottom of the inner wall of the U-shaped telescopic frame by means of the contact of the U-shaped block. When the double-ball rod passes over the U-shaped block, it will reciprocate up and down and impact the U-shaped telescopic frame during the process of resetting by its own and the spring force inside the sliding frame. Repeat this process. By means of the impact of the double-ball rod, the U-shaped telescopic frame is caused to vibrate slightly.

[0008] According to the above technical solution, the anti-adhesion device includes a negative pressure fan, which is fixedly installed on the outer wall of the electric push rod near the center of the U-shaped telescopic frame. The top of the negative pressure fan is connected and fixedly installed with a spiral hose. A collecting gun is fixedly installed on the top of the spiral hose. The bottom of the collecting gun is in contact with the bottom of the inner wall of the U-shaped telescopic frame. The collecting gun is located below the grinding roller. Before the servo motor is started, the negative pressure fan is started. After the negative pressure fan is started, the suction force is transmitted to the inside of the collecting gun through the spiral hose, and the collecting gun is pumped below the grinding roller.

[0009] According to the above technical solution, the anti-adhesion device also includes a transmission plate, which is fixedly installed on the outer wall of the sliding frame away from the collecting gun, a resistance frame is fixedly installed on the top of the transmission plate, a flat plate is fixedly installed on the inner edge of the telescopic end of the U-shaped telescopic frame, and a trapezoidal frame is fixedly installed on the bottom of the flat plate.

[0010] According to the above technical solution, the transmission plate is fixedly installed inside the outer wall of the collecting gun, the top of the resistance frame is designed as an arc surface, and the bottom of the trapezoidal frame is located on the arc surface movement trajectory of the top of the resistance frame. During the horizontal movement and resetting of the sliding frame, the transmission plate is driven to synchronously slide and reset along the bottom of the inner wall of the U-shaped telescopic frame. During the movement of the transmission plate, the collecting gun is driven to move synchronously. When the collecting gun moves horizontally, the spiral hose is pulled, thereby expanding the pulling range of the collecting gun on the grinding roller. At the same time, the transmission plate drives the resistance frame to move synchronously. When the resistance frame moves horizontally, it breaks away from the inclined surface range of the bottom of the trapezoidal frame, and the resistance to the bottom plane of the trapezoidal frame causes the trapezoidal frame to generate an upward movement force. The trapezoidal frame pushes the bottom of the flat plate to cause it to be subjected to force synchronously. When the flat plate is subjected to force, the telescopic end of the U-shaped telescopic frame is subjected to force synchronously, that is, the outer wall support of the telescopic end of the U-shaped telescopic frame is increased to prevent the telescopic end of the U-shaped telescopic frame from shrinking downward under the conflict between the grinding roller and the steel pipe.

[0011] The U-shaped plate is pressed against the bottom surface of the movable plate, and the movable plate is pressed against the bottom surface of the movable plate, so that the movable plate can slide and return to the original position when the movable plate is in a state of being moved.

[0012] According to the above technical solution, the anti-spillage device also includes a square column, which is fixedly installed on the outer wall of the movable plate away from the telescopic end of the electric push rod. A U-shaped frame is slidably installed inside the back slide groove of the fixed end of the U-shaped telescopic frame, and a long plate is fixedly installed at the bottom of the U-shaped frame. An arc shell is slidably installed inside the collection gun through a longitudinal spring.

[0013] The top of the U-shaped frame is slidably mounted on the outer wall of the U-shaped plate near one side of the resistance frame, and a spring in the horizontal direction is arranged between the U-shaped frame and the U-shaped plate, and the side of the long plate near the U-shaped frame is located on the movement trajectory of the square column, and the top of the arc shell contacts the top of the inner wall of the U-shaped frame. When the U-shaped plate moves horizontally, it will drive the U-shaped frame to move synchronously, and the U-shaped frame drives the long plate to move synchronously. At the same time, the moving plate will drive the square column to move in the direction close to the U-shaped plate. Therefore, during the movement of the long plate, it will be resisted by the square column, and the long plate drives the U-shaped frame to move along the outer wall of the U-shaped plate in the direction away from the U-shaped telescopic frame. After that, the U-shaped frame automatically realizes horizontal resetting through the elastic force of the spring, and during the horizontal movement of the U-shaped frame, it will be separated from the suppression on the top of the arc shell. At this time, the arc shell generates an upward movement force through the spring arranged between it and the inside of the collecting gun, and then the top inclined surface of the U-shaped frame contacts the top edge of the arc shell, thereby pressing the arc shell to reset.

[0014] The present invention provides a steel pipe outer weld synchronous belt mold grinding machine, which has the following beneficial effects:

[0015] (1) The present invention cooperates with an electric push rod, a U-shaped telescopic frame, a grinding roller, an electric slide rail, a sliding frame, a double ball rod and a U-shaped block, and uses two grinding rollers to limit, resist and grind the steel pipe to be ground, so that the steel pipe can maintain good stability during the welding process, avoid shaking of the steel pipe weld during grinding, avoid reducing the fit between the grinding roller and the steel pipe weld, improve the uniformity of the welding of the steel pipe, and prevent uneven welding thickness; when the U-shaped telescopic frame generates a slight vibration, it prompts the grinding roller to vibrate synchronously, and with the help of the vibration force, the grinding roller can better fit the outer wall of the steel pipe, avoid idling due to the vibration generated during the operation of the equipment during the welding process of the steel pipe, and further improve the grinding efficiency of the steel pipe weld on the original basis.

[0016] (2) The present invention adopts the setting of an anti-adhesion device, and cooperates with a sliding frame, a negative pressure fan, a spiral hose, a collecting gun, a transmission plate, a resistance frame, a flat plate and a trapezoidal frame. The suction force generated by the collecting gun is used to absorb the debris generated during the grinding of the steel pipe weld downward, so as to prevent the metal debris from adhering to the outer wall of the grinding roller during the grinding process, thereby ensuring that the outer wall of the grinding roller is smooth and clean, thereby reducing the probability of the outer wall of the steel pipe being worn during the grinding process; the transmission plate is used to effectively expand the activity range of the collecting gun, thereby improving the absorption efficiency of the debris on the outer wall of the grinding roller, and at the same time, an external support is added to the telescopic end of the U-shaped telescopic frame, so as to ensure that the outer wall of the grinding roller always fits the outer wall of the steel pipe, thereby avoiding the downward contraction of the grinding roller due to the resistance at the protrusion of the steel pipe weld, further improving the stability of the steel pipe during grinding, and preventing the steel pipe from being separated from the grinding roller.

[0017] (3) The present invention sets an anti-spillage device, and cooperates with a resistance frame, a U-shaped plate, a movable plate, a semicircular block, a square column, a U-shaped frame, a long plate and a curved shell. The movable plate pushes the spiral hose to continuously change its posture. That is, in the process of the collecting gun conveying iron debris with the help of the spiral hose, the probability of the debris accumulating inside the spiral hose due to the bending posture is effectively prevented, thereby accelerating the conveying rate of the debris; the U-shaped frame indirectly presses the top of the curved shell, so that the curved shell can indirectly slide up and down inside the collecting gun. While accelerating the falling of the debris, the curved shell reduces the air inlet of the collecting gun, thereby enhancing the suction force of the collecting gun on the debris, and the arc surface at the bottom of the arc shell effectively prevents the debris from overflowing inside the collecting gun due to insufficient conveying. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the present invention as a whole;

[0019] Figure 2 A schematic diagram of the overall back view of the present invention;

[0020] Figure 3 This is a schematic diagram of the peripheral structure of the U-shaped telescopic frame of the present invention;

[0021] Figure 4 This is a schematic diagram of the internal structure of the U-shaped telescopic frame of the present invention;

[0022] Figure 5 It is a schematic diagram of the anti-adhesion device of the present invention;

[0023] Figure 6 This is a schematic diagram of the back bottom perspective of the anti-adhesion device of the present invention;

[0024] Figure 7 It is a schematic diagram of the anti-spillage device of the present invention;

[0025] Figure 8 It is a schematic cross-sectional view of the back of the anti-overflow device of the present invention.

[0026] In the figure: 1. Electric control mechanism; 2. Frame; 3. Cabinet; 4. Servo motor; 5. Three-jaw chuck; 6. Grinding head mechanism; 7. Electric push rod; 8. U-shaped telescopic frame; 9. Grinding roller; 10. Electric slide rail; 11. Sliding frame; 12. Double ball rod; 13. U-shaped block; 14. Anti-adhesion device; 141. Negative pressure fan; 142. Spiral hose; 143. Collection gun; 144. Transmission plate; 145. Contact frame; 146. Flat plate; 147. Trapezoidal frame; 15. Anti-overflow device; 151. U-shaped plate; 152. Moving plate; 153. Semi-circular block; 154. Square column; 155. U-shaped frame; 156. Long plate; 157. Arc-shaped shell. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0028] Please refer to Figures 1-8 , an embodiment of the present invention is: A synchronous belt die grinding machine for the outer weld of steel pipes, including an electric control mechanism 1. A frame 2 is arranged on the right side of the electric control mechanism 1. A cabinet 3 is arranged at the top edge of the left side of the frame 2. A servo motor 4 is arranged on the front of the cabinet 3. A three-jaw chuck 5 is arranged on the side of the output end of the servo motor 4 away from the cabinet 3. A grinding head mechanism 6 is slidably installed on the top right side of the frame 2. An electric push rod 7 is fixedly installed at the bottom of the inner wall of the U-shaped groove of the frame 2. The top of the telescopic end of the electric push rod 7 is fixedly installed with a U-shaped telescopic frame 8. An anti-adhesion device 14 for preventing debris from remaining is arranged inside the U-shaped telescopic frame 8. An anti-overflow device 15 for accelerating the collection of debris is arranged outside the U-shaped telescopic frame 8. Two grinding rollers 9 are symmetrically and fixedly installed inside the telescopic end of the U-shaped telescopic frame 8. An electric slide rail 10 is fixedly installed inside the front of the fixed end of the U-shaped telescopic frame 8. A sliding frame 11 is slidably installed inside the electric slide rail 10. A double ball rod 12 is slidably installed through the inside of the sliding frame 11. A number of U-shaped blocks 13 are fixedly installed at equal intervals on the top of the electric slide rail 10.

[0029] The electrical control mechanism 1 provides good operation control for the whole equipment. There is a U-shaped groove at the center of the top of the frame 2. A chute is provided on one side of the back of the fixed end of the U-shaped telescopic frame 8. The grinding roller 9 is located below the three-jaw chuck 5. A spring for longitudinal reset is provided between the inside of the sliding frame 11 and the double-ball rod 12. The bottom of the inner wall of the U-shaped telescopic frame 8 is on the movement track of the bottom of the double-ball rod 12. The arc surface at the bottom of one end of the U-shaped block 13 close to the electric slide rail 10 contacts the top of the double-ball rod 12. The required steel pipe to be ground is limited and abraded by the two grinding rollers 9, so that the steel pipe can maintain good stability during the grinding of the weld, avoiding the shaking of the steel pipe weld during grinding, avoiding the reduction of the fitting degree between the grinding roller 9 and the steel pipe weld, improving the uniformity of the grinding of the steel pipe weld, and preventing the uneven grinding thickness of the weld; when the U-shaped telescopic frame 8 generates slight vibration, it prompts the grinding roller 9 to vibrate synchronously. With the vibration force, the grinding roller 9 can better fit the outer wall of the steel pipe, avoiding the idling phenomenon of the steel pipe during grinding due to the vibration generated during the operation of the equipment, and further improving the grinding efficiency of the steel pipe weld on the original basis.

[0030] During use, one end of the steel pipe is placed inside the three-jaw chuck 5, and the three-jaw chuck 5 clamps and fixes one end of the steel pipe. At the same time, the other end of the steel pipe abuts against one end of the grinding head mechanism 6. The bottom of the grinding head mechanism 6 slides on the top of the frame 2 to adjust the abutting distance of the steel pipe. At the same time, the electric push rod 7 is started. The telescopic end of the electric push rod 7 pushes the U-shaped telescopic frame 8 to move upward. The U-shaped telescopic frame 8 drives the grinding roller 9 to move towards the bottom of the steel pipe abutted by the grinding head mechanism 6 and the three-jaw chuck 5 until the center adjacent position of the two grinding rollers 9 contacts the outer wall of the steel pipe. At this time, the servo motor 4 is started. The output end of the servo motor 4 prompts the three-jaw chuck 5 to drive the steel pipe to rotate and contact the outer wall of the grinding roller 9 for grinding; at the beginning of the grinding work of the steel pipe weld, the electric slide rail 10 is started. The electric slide rail 10 drives the sliding frame 11 to move towards the center of the U-shaped telescopic frame 8 and reset. Repeating like this, the sliding frame 11 drives the double-ball rod 12 to move synchronously. During the horizontal movement of the double-ball rod 12, it contacts the arc surface of the U-shaped block 13 to generate a reaction force, and the electric slide rail 10 limits the U-shaped block 13. At this time, the double-ball rod 12 moves downward from the inside of the sliding frame 11 and impacts the bottom of the inner wall of the U-shaped telescopic frame 8 by means of the reaction of the U-shaped block 13. When the double-ball rod 12 crosses the U-shaped block 13, it will reciprocate up and down and impact the U-shaped telescopic frame 8 during the process of resetting by its own and the spring force inside the sliding frame 11. Repeating like this, the U-shaped telescopic frame 8 is prompted to generate slight vibration by the impact of the double-ball rod 12.

[0031] According to the above embodiment, the steel pipe to be ground is limited, resisted and ground by two grinding rollers 9, so that the steel pipe can maintain good stability during the welding process, avoid shaking of the steel pipe weld during grinding, avoid reducing the fit between the grinding roller 9 and the steel pipe weld, improve the uniformity of the steel pipe weld grinding, and prevent uneven weld grinding thickness; when the U-shaped telescopic frame 8 generates a slight vibration, it prompts the grinding roller 9 to vibrate synchronously, and with the help of the vibration force, the grinding roller 9 can better fit the outer wall of the steel pipe, avoid idling due to the vibration generated during the operation of the equipment during the steel pipe grinding process, and further improve the grinding efficiency of the steel pipe weld on the original basis.

[0032] See also Figures 1-8 , based on the above embodiment, another embodiment of the present invention further includes an anti-adhesion device 14;

[0033] The anti-adhesion device 14 includes a negative pressure fan 141, which is fixedly installed on the outer wall of the electric push rod 7 near the center of the U-shaped telescopic frame 8. The top of the negative pressure fan 141 is connected and fixedly installed with a spiral hose 142, and the top of the spiral hose 142 is fixedly installed with a collecting gun 143. The bottom of the collecting gun 143 contacts the bottom of the inner wall of the U-shaped telescopic frame 8. The collecting gun 143 is located below the grinding roller 9. The suction force generated by the collecting gun 143 is used to absorb the debris generated during the grinding of the steel pipe weld downward, so as to prevent metal debris from adhering to the outer wall of the grinding roller 9 during the grinding process, thereby ensuring that the outer wall of the grinding roller 9 is smooth and clean, thereby reducing the probability of the outer wall of the steel pipe being worn during the grinding process.

[0034] The anti-adhesion device 14 also includes a transmission plate 144, which is fixedly installed on the outer wall of the sliding frame 11 away from the collecting gun 143. A resistance frame 145 is fixedly installed on the top of the transmission plate 144. A flat plate 146 is fixedly installed at the inner edge of the telescopic end of the U-shaped telescopic frame 8, and a trapezoidal frame 147 is fixedly installed at the bottom of the flat plate 146.

[0035] The transmission plate 144 is fixedly installed inside the outer wall of the collecting gun 143, the top of the resistance frame 145 is designed as an arc surface, and the bottom of the trapezoidal frame 147 is located on the arc surface movement trajectory of the top of the resistance frame 145. The transmission plate 144 effectively expands the activity range of the collecting gun 143, and improves the absorption efficiency of the debris on the outer wall of the grinding roller 9. At the same time, an external support is added to the telescopic end of the U-shaped telescopic frame 8, so that the outer wall of the grinding roller 9 is always in contact with the outer wall of the steel pipe, avoiding the downward contraction of the grinding roller 9 due to the resistance at the protrusion of the steel pipe weld, further improving the stability of the steel pipe during grinding, and preventing the steel pipe and the grinding roller 9 from detaching.

[0036] When in use, before the servo motor 4 is started, the negative pressure fan 141 is started. After the negative pressure fan 141 is started, the suction force is transmitted to the inside of the collecting gun 143 through the spiral hose 142, and the collecting gun 143 is twitched under the grinding roller 9; the sliding frame 11 moves horizontally and resets during the process of driving the transmission plate 144 to slide synchronously along the bottom of the inner wall of the U-shaped telescopic frame 8 and reset, and the driving plate 144 drives the collecting gun 143 to move synchronously during the movement of the transmission plate 144. When the collecting gun 143 moves horizontally, it pulls the spiral hose 142, thereby expanding the collecting gun 143 to the grinding roller 9 The transmission plate 144 drives the contact frame 145 to move synchronously. The contact frame 145 leaves the bottom inclined surface range of the trapezoidal frame 147 when moving horizontally, and contacts the bottom plane of the trapezoidal frame 147 to cause the trapezoidal frame 147 to generate an upward force. The trapezoidal frame 147 pushes the bottom of the flat plate 146 to cause it to be stressed synchronously. When the flat plate 146 is stressed, the telescopic end of the U-shaped telescopic frame 8 is forced synchronously, that is, the outer wall support of the telescopic end of the U-shaped telescopic frame 8 is increased to prevent the telescopic end of the U-shaped telescopic frame 8 from shrinking downward under the friction between the grinding roller 9 and the steel pipe.

[0037] According to the above embodiment, the suction force generated by the collecting gun 143 is used to absorb the debris generated during the grinding of the steel pipe weld, so as to prevent the metal debris from adhering to the outer wall of the grinding roller 9 during the grinding process, ensure that the outer wall of the grinding roller 9 is smooth and clean, and thus reduce the probability of the outer wall of the steel pipe being worn during the grinding process; the movable range of the collecting gun 143 is effectively expanded by the transmission plate 144, and the absorption efficiency of the debris on the outer wall of the grinding roller 9 is improved. At the same time, an external support is added to the telescopic end of the U-shaped telescopic frame 8, so that the outer wall of the grinding roller 9 is always in contact with the outer wall of the steel pipe, and the grinding roller 9 is prevented from shrinking downward due to the resistance of the protrusion of the steel pipe weld, thereby further improving the stability of the steel pipe during grinding and preventing the steel pipe from being separated from the grinding roller 9.

[0038] See also Figures 1-8 , based on the above embodiment, another embodiment of the present invention further includes an anti-spillage device 15;

[0039] The anti-overflow device 15 includes a U-shaped plate 151, the top of the U-shaped plate 151 is fixedly installed on the outer wall of the resistance frame 145 near one side of the U-shaped telescopic frame 8, and a movable plate 152 is installed at the bottom of the U-shaped telescopic frame 8 through a spring sliding, and the outer wall of the spiral hose 142 is penetrated inside the movable plate 152, and a plurality of semicircular blocks 153 are equidistantly and fixedly installed on the movable plate 152 near one end of the U-shaped plate 151, and the arc surface of the semicircular block 153 contacts the bottom of the U-shaped plate 151. The push of the movable plate 152 causes the posture of the spiral hose 142 to change continuously, that is, in the process of the collecting gun 143 conveying iron debris with the help of the spiral hose 142, the probability of debris accumulating inside the spiral hose 142 due to the bending posture of the spiral hose 142 is effectively prevented, thereby accelerating the conveying rate of the debris.

[0040] The anti-overflow device 15 further includes a square column 154. One side of the square column 154 away from the telescopic end of the electric push rod 7 is fixedly installed on the outer wall of the moving plate 152. A U-shaped frame 155 is slidably installed inside the chute on the back of the fixed end of the U-shaped telescopic frame 8. A long plate 156 is fixedly installed at the bottom of the U-shaped frame 155. An arc-shaped shell 157 is slidably installed inside the collection gun 143 through a longitudinal spring.

[0041] One side of the top of the U-shaped frame 155 close to the contact frame 145 is slidably installed on the outer wall of the U-shaped plate 151. A spring in the horizontal direction is provided between the U-shaped frame 155 and the U-shaped plate 151. One side of the long plate 156 close to the U-shaped frame 155 is located on the movement track of the square column 154. The top of the arc-shaped shell 157 contacts the inner wall top of the U-shaped frame 155. Through the indirect pressing of the top of the arc-shaped shell 157 by the U-shaped frame 155, the arc-shaped shell 157 slides reciprocally up and down indirectly inside the collection gun 143. While accelerating the falling of the debris, the intake port of the collection gun 143 is narrowed by the arc-shaped shell 157, enhancing the suction force of the collection gun 143 on the debris. And the bottom arc surface of the arc-shaped shell 157 effectively prevents the debris from overflowing inside the collection gun 143 due to insufficient transportation.

[0042] During use, during the horizontal movement and resetting process of the contact frame 145, it drives the U-shaped plate 151 to move synchronously. When the U-shaped plate 151 moves horizontally, the contact with the semi-circular block 153 is released. At this time, the moving plate 152 loses its limit. The moving plate 152 drives the semi-circular block 153 to move along the bottom of the U-shaped telescopic frame 8 towards the direction close to the U-shaped plate 151 through the elastic force provided by the spring. As the U-shaped plate 151 contacts the next semi-circular block 153, it causes the moving plate 152 to slide and reset. Repeating like this, the moving plate 152 continuously pushes the spiral hose 142 during the horizontal sliding process, that is, it causes the spiral hose 142 to evolve from a spiral shape to a vertical state; when the U-shaped plate 151 moves horizontally, it will drive the U-shaped frame 155 to move synchronously. The U-shaped frame 155 drives the long plate 156 to move synchronously. At the same time, the moving plate 152 will drive the square column 154 to move towards the direction close to the U-shaped plate 151. Therefore, during the movement of the long plate 156, it will be resisted by the square column 154. The long plate 156 drives the U-shaped frame 155 to move along the outer wall of the U-shaped plate 151 away from the U-shaped telescopic frame 8. After that, the U-shaped frame 155 automatically realizes the reset work in the horizontal direction through the spring elastic force. During the horizontal movement of the U-shaped frame 155, it will release the pressing on the top of the arc-shaped shell 157. At this time, the arc-shaped shell 157 generates an upward movement force through the spring provided between it and the inside of the collection gun 143. Then the inclined surface at the top of the U-shaped frame 155 contacts the top edge of the arc-shaped shell 157 to press the arc-shaped shell 157 to reset.

[0043] According to the above embodiments, the posture of the spiral hose 142 is continuously changed by the pushing of the moving plate 152. That is, during the process of the collection gun 143 transporting iron debris through the spiral hose 142, the probability of debris accumulation inside the spiral hose 142 due to its bent posture is effectively prevented, thereby accelerating the conveying rate of the debris. Through the indirect pressing of the top of the arc-shaped shell 157 by the U-shaped frame 155, the arc-shaped shell 157 slides up and down indirectly and reciprocally inside the collection gun 143. While accelerating the falling of the debris, the intake port of the collection gun 143 is narrowed by the arc-shaped shell 157, enhancing the suction force of the collection gun 143 on the debris. Moreover, the bottom arc surface of the arc-shaped shell 157 effectively prevents the debris from overflowing inside the collection gun 143 due to insufficient transportation.

[0044] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A steel pipe outer weld synchronous belt die grinding machine, comprising an electrical control mechanism (1), characterized in that: A frame (2) is arranged on the right side of the electrical control mechanism (1), a cabinet (3) is arranged at the top edge of the left side of the frame (2), a servo motor (4) is arranged on the front side of the cabinet (3), a three-jaw chuck (5) is arranged on the output end of the servo motor (4) away from the cabinet (3), a grinding head mechanism (6) is slidably mounted on the right side of the top of the frame (2), an electric push rod (7) is fixedly mounted on the bottom of the inner wall of the U-shaped groove of the frame (2), a U-shaped telescopic frame (8) is fixedly mounted on the top of the telescopic end of the electric push rod (7), and a avoiding mechanism (6) is arranged inside the U-shaped telescopic frame (8). An anti-adhesion device (14) is provided to prevent debris from remaining. An anti-overflow device (15) is arranged on the periphery of the U-shaped telescopic frame (8) to accelerate the collection of debris. Two grinding rollers (9) are symmetrically and fixedly installed inside the telescopic end of the U-shaped telescopic frame (8). An electric slide rail (10) is fixedly installed inside the front of the fixed end of the U-shaped telescopic frame (8). A sliding frame (11) is slidably installed inside the electric slide rail (10). A double ball rod (12) is penetrated and slidably installed inside the sliding frame (11). A plurality of U-shaped blocks (13) are equidistantly and fixedly installed on the top of the electric slide rail (10).

2. A steel pipe outer weld synchronous belt mold grinding machine according to claim 1, characterized in that: The electrical control mechanism (1) provides good operation control for the whole equipment. A U-shaped groove is provided at the center of the top of the frame (2). A slide groove is provided on the back side of the fixed end of the U-shaped telescopic frame (8). The grinding roller (9) is located below the three-jaw chuck (5). A longitudinal return spring is provided between the inside of the sliding frame (11) and the double ball rod (12). The bottom of the inner wall of the U-shaped telescopic frame (8) is located on the bottom motion track of the double ball rod (12). The bottom arc surface of one end of the U-shaped block (13) close to the electric slide rail (10) contacts the top of the double ball rod (12).

3. A steel pipe outer weld synchronous belt mold grinding machine according to claim 2, characterized in that: The anti-adhesion device (14) comprises a negative pressure fan (141), the negative pressure fan (141) is fixedly installed on the outer wall of the electric push rod (7) near the center of the U-shaped telescopic frame (8), the top of the negative pressure fan (141) is connected to and fixedly installed with a spiral hose (142), the top of the spiral hose (142) is fixedly installed with a collection gun (143), the bottom of the collection gun (143) is in contact with the bottom of the inner wall of the U-shaped telescopic frame (8), and the collection gun (143) is located below the grinding roller (9).

4. A steel pipe outer weld synchronous belt mold grinding machine according to claim 3, characterized in that: The anti-adhesion device (14) further comprises a transmission plate (144), wherein the transmission plate (144) is fixedly mounted on the outer wall of the sliding frame (11) at a side away from the collecting gun (143), a resisting frame (145) is fixedly mounted on the top of the transmission plate (144), a flat plate (146) is fixedly mounted on the inner edge of the telescopic end of the U-shaped telescopic frame (8), and a trapezoidal frame (147) is fixedly mounted on the bottom of the flat plate (146).

5. A steel pipe outer weld synchronous belt mold grinding machine according to claim 4, characterized in that: The transmission plate (144) is fixedly mounted on the outer wall of the collecting gun (143), the top of the abutment frame (145) is designed as an arc surface, and the bottom of the trapezoidal frame (147) is located on the arc surface motion track of the top of the abutment frame (145).

6. A steel pipe outer weld synchronous belt mold grinding machine according to claim 5, characterized in that: The anti-overflow device (15) comprises a U-shaped plate (151), the top of the U-shaped plate (151) is fixedly mounted on the outer wall of the abutment frame (145) near one side of the U-shaped telescopic frame (8), the bottom of the U-shaped telescopic frame (8) is slidably mounted with a movable plate (152) via a spring, the inside of the movable plate (152) passes through the outer wall of the spiral hose (142), and the movable plate (152) is fixedly mounted with a plurality of semicircular blocks (153) equidistantly near one end of the U-shaped plate (151), and the arc surface of the semicircular blocks (153) contacts the bottom of the U-shaped plate (151).

7. A steel pipe outer weld synchronous belt mold grinding machine according to claim 6, characterized in that: The anti-overflow device (15) also includes a square column (154), and the square column (154) is fixedly installed on the outer wall of the movable plate (152) at a side away from the telescopic end of the electric push rod (7). A U-shaped frame (155) is slidably installed inside the back slide groove of the fixed end of the U-shaped telescopic frame (8), and a long plate (156) is fixedly installed at the bottom of the U-shaped frame (155). A curved shell (157) is slidably installed inside the collection gun (143) via a longitudinal spring.

8. A steel pipe outer weld synchronous belt mold grinding machine according to claim 7, characterized in that: The top of the U-shaped frame (155) is slidably mounted on the outer wall of the U-shaped plate (151) near one side of the abutment frame (145); a horizontal spring is arranged between the U-shaped frame (155) and the U-shaped plate (151); the side of the long plate (156) near the U-shaped frame (155) is located on the movement track of the square column (154); and the top of the arc shell (157) contacts the top of the inner wall of the U-shaped frame (155).

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