Steel pipe outer surface polishing device

Abstract

The invention relates to the technical field of steel pipe outer circle polishing, in particular to a steel pipe outer surface polishing device which comprises a single machine table, a transmission assembly, a control assembly and a standby mechanism. Two horizontal sliding rails are horizontally arranged at the upper end of the single machine table, and a polishing control seat is horizontally and slidably arranged above the two horizontal sliding rails; according to the device, horizontal sliding adjustment of the polishing control base on the single machine table is achieved, the device can adapt to polishing machining operation of steel pipes of different sizes, then movable control of the polishing control base is matched with a standby assembly, machining multi-leaf wheels can be replaced in time in the later period, manual operation after shutdown is not needed, and the machining efficiency is improved. The machining quality can be guaranteed, during replacement operation, through cooperation of the connecting assembly and the control assembly, the efficiency of switching or replacing of the machined multi-leaf wheel can be achieved, and operation is more worry-saving and convenient.

Description

Technical Field

[0001] The invention relates to the technical field of steel pipe outer circle polishing, in particular to a steel pipe outer surface polishing device. Background Art

[0002] Polishing the outer surface of steel pipes is a process that improves the surface finish, flatness, glossiness and other properties, and enhances the appearance quality, performance or adaptability of subsequent processing of objects. During the polishing process of steel pipes, it is mainly done by single or combined polishing of grinding wheels, grinding belts and flap wheels;

[0003] The utility model with existing publication number CN207824551U relates to a steel pipe outer cylindrical grinding device, including a frame and a drive motor, a transition mechanism is fixed to the middle of the right end of the frame, a bottom plate is provided on the top of the frame, a horizontal plate is fixed horizontally on the bottom plate, and an inclined wheel group, a motor group and an inclined wheel I are arranged on the horizontal plate from left to right, the motor group includes two three-phase asynchronous motors arranged side by side, a flap wheel is installed on the output shaft of the three-phase asynchronous motor, a baffle is fixed to the front edge of the bottom plate, a water pipe is fixed on the inside of the baffle, a support mechanism I is provided between the water pipe and the inclined wheel group, a support mechanism II is provided between the water pipe and the motor group, and the support mechanism II is connected to the transition mechanism in a transmission manner. The above scheme can realize the adaptive processing of steel pipe polishing through the flap wheel. Operation, when the flap wheel is in use, it needs to be connected to the motor through the transmission shaft and transmission belt, and the motor drives the flap wheel to complete the high-speed rotation grinding and polishing operation. However, when the flap wheel is in polishing operation, the polishing quality depends on the abrasive state on the flap wheel. When the flap wheel is used for a long time, it needs to be replaced regularly. Since the steel pipe moves continuously during grinding and polishing, it contacts multiple flap wheel polishing machine positions in turn during the movement. The flap wheel at the feeding end of the steel pipe has a relatively greater loss than the rear end. When the flap wheel is replaced later, in order to reduce costs, not all of them will be replaced uniformly. Therefore, when replacing a single or partial flap wheel, it is also necessary to stop the machine, otherwise it will greatly affect the quality of the steel pipe polishing and be inconvenient to use. Summary of the Invention

[0004] The object of the present invention is to provide a steel pipe outer surface polishing device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a steel pipe outer surface polishing device, which relates to the technical field of steel pipe outer circle polishing, specifically a steel pipe outer surface polishing device comprising:

[0006] A single machine, wherein two horizontal slide rails are horizontally provided on the upper end of the single machine, a polishing control seat is horizontally slidably provided above the two horizontal slide rails, an adjustment cylinder is horizontally provided on the upper end of the single machine, one side of the adjustment cylinder is connected to the polishing control seat, and a transmission cylinder is provided on the side of the polishing control seat away from the adjustment cylinder;

[0007] A transmission assembly includes a polishing rotating shaft and a belt transmission shaft. A transmission control cavity is sequentially opened in the transmission cylinder. The polishing rotating shaft and the belt transmission shaft are respectively rotated horizontally and plugged into two sides of the transmission control cavity. One side of the polishing rotating shaft and the belt transmission shaft are connected. A processing flap wheel is provided on the side of the polishing rotating shaft located outside the transmission cylinder through a connecting assembly. The connecting assembly includes a prismatic connecting rod, a polishing rotating shaft, a push block and a plurality of restraining blocks.

[0008] A control assembly is disposed in the transmission control chamber and includes a control sleeve and a plurality of control piston rods. The control sleeve is sleeved on the polishing rotating shaft and is disposed on one side of the transmission control chamber;

[0009] Backup agencies,

[0010] This device can adapt to polishing operations of different steel pipe sizes through the horizontal sliding adjustment of the polishing control seat on a single machine. Then, through the movable control of the polishing control seat and the spare components, the flap wheel can be replaced in time at a later stage without the need for manual operation after shutdown, which can ensure the processing quality. During the replacement operation, the efficiency of switching or replacing the flap wheel can be achieved through the cooperation of the connecting components and the control components, making the operation more worry-free and convenient.

[0011] The standby mechanism is arranged on a side of a single machine platform close to the processing flap wheel, and the standby mechanism includes a standby box and a positioning plate.

[0012] Preferably, a receiving groove is provided in the center of one side of the transmission cylinder, a telescopic groove is provided between the receiving groove and the transmission control cavity, a plurality of supporting rings are embedded in the telescopic groove on one side of the transmission control cavity, a plurality of supporting balls are movably provided on the inner circumferences of the plurality of supporting rings, an elastic sealing ring is embedded in the telescopic groove on one side of the receiving groove, the polishing rotating shaft moves horizontally through the telescopic groove, and the inner circumference of the elastic sealing ring is in contact with the outer circumference of the polishing rotating shaft, and the supporting balls of the plurality of supporting rings are respectively in contact with the outer circumference of the polishing rotating shaft.

[0013] Preferably, the belt drive shaft is connected to the center of one end of the transmission cylinder away from the storage groove through the bearing process, a transmission pulley is sleeved on one side of the transmission cylinder of the belt drive shaft process, a prismatic transmission rod is provided at one end of the belt drive shaft located in the transmission control cavity, a prismatic transmission groove is opened at the center of one side of the polishing rotating shaft located in the transmission control cavity, and one end of the prismatic transmission rod is inserted into the prismatic transmission groove.

[0014] Preferably, a side baffle is provided at one end of the polishing rotating shaft located in the receiving groove, the center of one end of the side baffle extends out of the receiving groove and is provided with a prismatic connecting rod, a metal sleeve is provided at the center of the processing flap wheel, the metal sleeve is connected to the prismatic connecting rod, the cross-sectional area of ​​the prismatic connecting rod is smaller than the cross-sectional area of ​​the side baffle, one side of the metal sleeve is in contact with the side baffle, and a ring magnet is embedded in the side of the side baffle close to the metal sleeve.

[0015] Preferably, a prismatic groove is provided at one end of the prismatic connecting rod away from the side baffle, and a plurality of grooves are provided in the prismatic groove on the side away from the side baffle, and a rotating shaft is horizontally provided in each groove, and a connecting ear is provided on one side of the constraint block, and the connecting ear of the constraint block is movably connected to the rotating shaft. When the constraint block is rotated to a vertical posture through the rotating shaft, one side of the constraint block contacts the side of the metal sleeve away from the side baffle.

[0016] Preferably, the pushing block is movably inserted into the prismatic groove, and a plurality of pushing blocks are provided on the side of the pushing block away from the side baffle. A pushing pin is horizontally provided on one side of the pushing block, and a strip groove is penetrated on the side of the restraining block away from the metal sleeve, and the restraining block is connected to the pushing pin through the strip groove.

[0017] Preferably, a step groove is provided on one side of the polishing rotating shaft located in the transmission control chamber, and the control sleeve is connected to the side of the polishing rotating shaft with the step groove through two sealed bearings. A piston groove is provided on the side of the polishing rotating shaft close to the ejection block, and a restraining piston rod is provided at the center of one side of the ejection block. One end of the restraining piston rod is movably inserted into the piston groove and is provided with a reset spring, and a number of transfer air grooves are provided in the step groove to connect to the piston groove.

[0018] Preferably, one side of the control sleeve is connected to the step groove and is provided with a three-way joint, one side of the three-way joint is connected with a one-way valve, the outer peripheral side of the control sleeve is provided with a control ring, a plurality of movable guide rods are horizontally provided in the transmission control cavity, and the control ring is movably sleeved with the plurality of movable guide rods.

[0019] Preferably, a number of control piston rods are horizontally and symmetrically provided on both sides of the control ring, and the several control piston rods are staggered with the movable guide rods. An extended piston tube is horizontally provided on the side of the transmission control cavity close to the control piston rod, and an annular diversion groove is opened on both sides of the transmission cylinder. The several extended piston tubes on both sides of the transmission control cavity are respectively connected with the two annular diversion grooves, and the several control piston rods on both sides of the control ring are respectively inserted into the several extended piston tubes on both sides of the transmission control cavity, and an air receiving groove is provided on one side of the annular diversion groove that passes through the transmission cylinder.

[0020] Preferably, a storage slot is provided in the spare box, a spare flap wheel is provided in the storage slot, the spare flap wheel and the polishing rotating shaft are in the same horizontal plane, a positioning plate is provided on the side of the spare box away from the polishing control seat, one side of the positioning plate is close to the spare flap wheel and is provided with a C-shaped magnet, one side of the C-shaped magnet is in contact with the metal sleeve of the spare flap wheel, a clearance window is opened through the side of the spare box close to the polishing control seat, and the height of the clearance window is greater than the diameter of the transmission cylinder.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] This device can adapt to polishing operations of different steel pipe sizes through the horizontal sliding adjustment of the polishing control seat on a single machine. Then, through the movable control of the polishing control seat and the spare components, the flap wheel can be replaced in time at a later stage without the need for manual operation after shutdown, which can ensure the processing quality. During the replacement operation, the efficiency of switching or replacing the flap wheel can be achieved through the cooperation of the connecting components and the control components, making the operation more worry-free and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the present invention from a first viewing angle;

[0024] Figure 2 For the present invention Figure 1 Schematic diagram of part A;

[0025] Figure 3 This is a schematic diagram of the structure of the present invention from a second viewing angle;

[0026] Figure 4 It is a schematic diagram of the cutaway structure of the present invention;

[0027] Figure 5 For the present invention Figure 4 Schematic diagram of part B;

[0028] Figure 6 For the present invention Figure 5 Schematic diagram of the C part;

[0029] Figure 7 For the present invention Figure 4 Schematic diagram of the D part;

[0030] Figure 8 For the present invention Figure 7 Schematic diagram of part E;

[0031] Figure 9 For the present invention Figure 4 Schematic diagram of the F part;

[0032] Figure 10 For the present invention Figure 4 Schematic diagram of G part;

[0033] Figure 11 This is an exploded view of the connection between the polishing rotating shaft and the belt transmission shaft of the present invention;

[0034] Figure 12 This is an exploded view of the cooperation between the prismatic connecting rod and the ejection block of the present invention;

[0035] Figure 13 This is a schematic diagram of the support collar arrangement of the present invention;

[0036] Figure 14 For the present invention Figure 13 Schematic diagram of the H part;

[0037] Figure 15 This is a schematic diagram of the arrangement of the spare box of the present invention.

[0038] Figure: single machine 1, horizontal slide 2, polishing control seat 3, adjustment cylinder 4, transmission cylinder 5, storage groove 6, transmission control chamber 7, polishing rotating shaft 8, belt drive shaft 9, prismatic transmission rod 10, prismatic transmission groove 11, support collar 12, support ball 13, elastic sealing rubber ring 14, side baffle 15, prismatic connecting rod 16, processing flap wheel 17, metal sleeve 18, prismatic groove 19, ejector block 20, rotating shaft 21, restraint block 22, strip groove 23, push pin 24, piston groove 25, restraining piston rod 26, return spring 27, control sleeve 28, step groove 29, adapter air groove 30, three-way joint 31, one-way valve 32, control ring 33, movable guide rod 34, control piston rod 35, extended piston tube 36, annular diverter groove 37, spare box 38, positioning plate 39, annular magnet 40, give way window 41, spare flap wheel 42, C-shaped magnet 43. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] Please see the attached Figure 1-15 , this application provides the following technical solutions.

[0041] Embodiment 1: A steel pipe outer surface polishing device includes a single machine 1, two horizontal slide rails 2 are horizontally provided at the upper end of the single machine 1, a polishing control seat 3 is horizontally slidably provided above the two horizontal slide rails 2, an adjustment cylinder 4 is horizontally provided at the upper end of the single machine 1, one side of the adjustment cylinder 4 is connected to the polishing control seat 3, and a transmission cylinder 5 is provided on the side of the polishing control seat 3 away from the adjustment cylinder 4, the adjustment cylinder 4 can be controlled by telescopic activity, so that the polishing control seat 3 can be horizontally moved above the single machine 1 through the horizontal slide rails 2 to adapt to the processing of steel pipes of different diameters, and a drive motor is provided at the upper end of the polishing control seat 3.

[0042] A transmission assembly is set to perform rotational transmission for polishing, and the transmission assembly includes a polishing rotating shaft 8 and a belt transmission shaft 9. A transmission control cavity 7 is opened in the transmission cylinder 5 in sequence. The polishing rotating shaft 8 and the belt transmission shaft 9 are respectively rotated horizontally and plugged into the two sides of the transmission control cavity 7. The polishing rotating shaft 8 is connected to one side of the belt transmission shaft 9. The polishing rotating shaft 8 is located on the side outside the transmission cylinder 5 and is provided with a processing flap wheel 17 through a connecting assembly. The connecting assembly includes a prismatic connecting rod 16, a polishing rotating shaft 8, a pushing block 20 and a plurality of constraint blocks 22. A receiving groove 6 is opened in the center of one side of the transmission cylinder 5, and a telescopic groove is opened between the receiving groove 6 and the transmission control cavity 7. A plurality of supporting rings 12 are embedded in the telescopic groove on one side of the transmission control cavity 7, and a plurality of supporting balls 13 are movably provided on the inner circumference of the plurality of supporting rings 12. An elastic sealing rubber ring 14 is embedded in the telescopic groove on one side of the receiving groove 6. The polishing rotating shaft 8 moves horizontally through the telescopic groove, and the elastic sealing rubber ring The inner circumference of 14 contacts the outer circumference of the polishing rotating shaft 8, and the supporting balls 13 of several supporting collars 12 contact the outer circumference of the polishing rotating shaft 8 respectively. The belt drive shaft 9 passes through the center of one end of the bearing process transmission cylinder 5 away from the storage groove 6. The belt drive shaft 9 is sleeved on one side of the process transmission cylinder 5 with a transmission pulley. The belt drive shaft 9 is located in the transmission control chamber 7 and is provided with a prismatic transmission rod 10. The polishing rotating shaft 8 is located in the transmission control chamber 7 and is provided with a prismatic transmission groove 11 at the center of one side. One end of the prismatic transmission rod 10 is inserted into the prismatic transmission groove 11. The polishing rotating shaft 8 can be horizontally moved and rotated in the telescopic groove of the transmission cylinder 5 through several supporting collars 12. The elastic sealing ring 14 can prevent external polishing dust from entering the transmission control chamber 7. When the driving motor drives the transmission pulley connected to the belt drive shaft 9 to rotate through the belt, the belt drive shaft 9 can control the polishing rotating shaft 8 to rotate synchronously through the prismatic transmission rod 10.

[0043] The polishing rotating shaft 8 is provided with a side baffle 15 at one end thereof in the receiving groove 6. The center of one end of the side baffle 15 extends out of the receiving groove 6 and is provided with a prismatic connecting rod 16. A metal sleeve 18 is provided at the center of the processing flap wheel 17. The metal sleeve 18 is provided with the prismatic connecting rod 16. The cross-sectional area of ​​the prismatic connecting rod 16 is smaller than that of the side baffle 15. One side of the metal sleeve 18 is in contact with the side baffle 15, and a ring magnet 40 is embedded on the side of the side baffle 15 close to the metal sleeve 18. A prismatic groove 19 is provided at one end of the prismatic connecting rod 16 away from the side baffle 15. Several The dry groove has a horizontal rotating shaft 21 in the groove, and a connecting ear is provided on one side of the constraint block 22. The connecting ear of the constraint block 22 is movably connected to the rotating shaft 21. When the constraint block 22 is rotated to a vertical posture through the rotating shaft 21, one side of the constraint block 22 contacts the side of the metal sleeve 18 away from the side baffle 15. When the processing flap wheel 17 is connected to the prismatic connecting rod 16 of the polishing rotating shaft 8 through the metal sleeve 18, it can be basically positioned and maintained by the annular magnet 40, and the prismatic structure of the prismatic connecting rod 16 can drive the processing flap wheel 17 to rotate synchronously when the polishing rotating shaft 8 rotates.

[0044] When the push block 20 moves horizontally in the prismatic groove 19, the push pin 24 is movably connected to the bar groove 23, and the restraining block 22 is sleeved with the pushing pin 24 through the bar groove 23. When the push block 20 moves horizontally in the prismatic groove 19, the pushing pin 24 is movably connected to the bar groove 23. At this time, the restraining block 22 can realize the flipping movement of the restraining block 22 with the horizontal movement of the push block 20. When the processing flap wheel 17 is simply connected and positioned with the annular magnet 40 through the metal sleeve 18, the other side of the metal sleeve 18 can be abutted and constrained by the restraining block 22, preventing the processing flap wheel 17 from disengaging from the prismatic connecting rod 16 under high-speed rotation. On the contrary, when the push block 20 is further retracted into the prismatic groove 19, the restraining block 22 is in an inclined state, and the metal sleeve 18 can be detached from the prismatic connecting rod 16.

[0045] A control component is provided to control the horizontal movement of the polishing rotating shaft 8. The control component is provided in the transmission control chamber 7. The control component includes a control sleeve 28 and a plurality of control piston rods 35. The control sleeve 28 is sleeved on one side of the polishing rotating shaft 8 and is placed in the transmission control chamber 7. A step groove 29 is provided on the side of the polishing rotating shaft 8 located in the transmission control chamber 7. The control sleeve 28 is sleeved on the side of the polishing rotating shaft 8 with the step groove 29 through two sealed bearings. A piston groove 25 is provided on the side of the polishing rotating shaft 8 close to the ejection block 20. A restraining piston rod 26 is provided at the center of one side of the ejection block 20. One end of the restraining piston rod 26 is movably inserted into the piston groove 25 and is provided with a reset spring 27. A plurality of transfer air grooves 30 are provided in the step groove 29 to connect the piston groove 25. One side of the control sleeve 28 is connected to the step groove 29 and is provided with a three-way joint 31. The three-way joint 3 1 is provided with a one-way valve 32 in the joint plug, and a control ring 33 is provided on the outer peripheral side of the control sleeve 28. A number of movable guide rods 34 are horizontally provided in the transmission control chamber 7. The control ring 33 is movably sleeved with the number of movable guide rods 34. When the three-way joint 31 is connected to the high-pressure gas, the high-pressure gas will enter the piston groove 25 through the step groove 29 and the adapter gas groove 30, control the pushing of the ejection block 20, and then the ejection block 20 pushes the constraint block 22 to flip by pushing the pin rod 24, so as to realize the connection constraint of the metal sleeve 18. When the three-way joint 31 stops passing gas, the return spring 27 provided in the piston groove 25 can drive the constraint piston rod 26 and the ejection block 20 to reset. At this time, the constraint block 22 tilts, and the metal sleeve 18 and the processing flap wheel 17 can be separated from the prismatic connecting rod 16. The high-pressure pipeline seal connected to the three-way joint 31 passes through the transmission cylinder 5.

[0046] In addition, when the constraint block 22 cannot continue to rotate and the high-pressure airflow introduced by the three-way joint 31 continues to increase, the high-pressure airflow is discharged from the position of the one-way valve 32, and the high-speed airflow cools the environment in the transmission control chamber 7 to avoid overheating caused by long-term high-speed rotation of the polishing rotating shaft 8 and the belt drive shaft 9. Then the high-pressure airflow blows the elastic sealing ring 14 from the telescopic groove to elastically deform and enter the storage groove 6. After that, a pressurized jet is blown towards several grinding blades of the processing flap wheel 17 in the gap between the storage groove 6 and the side baffle 15 to clean the dust attached to the blades and improve the quality of continuous polishing operations.

[0047] A number of control piston rods 35 are horizontally symmetrically provided on both sides of the control ring 33. The number of control piston rods 35 and the movable guide rod 34 are staggered. An extended piston tube 36 is horizontally provided on one side of the transmission control chamber 7 close to the control piston rod 35. Annular diverter grooves 37 are provided on both sides of the transmission cylinder 5. The number of extended piston tubes 36 on both sides of the transmission control chamber 7 are respectively connected to the two annular diverter grooves 37. The number of control piston rods 35 on both sides of the control ring 33 are respectively inserted into the number of extended piston tubes 36 on both sides of the transmission control chamber 7, and one side of the annular diverter groove 37 penetrates the transmission cylinder 5 and is provided with an air receiving groove. By exchanging ventilation of the two annular diverter grooves 37, the control piston rod 35 can push the control sleeve 28 to move horizontally in the transmission control chamber 7. When the control sleeve 28 moves horizontally along the movable guide rod 34 in the transmission control chamber 7, due to the polishing rotation shaft 8 It is connected to the control sleeve 28 through a sealed bearing. At this time, the control sleeve 28 can drive the polishing rotating shaft 8 to slide horizontally in the telescopic groove. When the high-pressure airflow is not introduced into the three-way joint 31, it is generally in two states, such as the non-processing state and when replacing the processing flap wheel 17. At this time, the processing flap wheel 17 is basically positioned by the adsorption of the metal sleeve 18 and the annular magnet 40. When it is necessary to replace the processing flap wheel 17 in use, the control sleeve 28 drives the polishing rotating shaft 8 to move toward the side of the belt drive shaft 9. At this time, the length of the storage groove 6 is greater than the sum of the lengths of the prismatic connecting rod 16 and the inclined constraint block 22. When the polishing rotating shaft 8 drives the prismatic connecting rod 16 to retract into the storage groove 6, the processing flap wheel 17 will be separated from the prismatic connecting rod 16 under the limiting action of the transmission cylinder 5, and then fall naturally, waiting to be replaced with a new processing flap wheel 17 to be connected to the prismatic connecting rod 16.

[0048] Embodiment 2: On the basis of embodiment 1, a spare mechanism is set up for timely replacement of the flap wheel 17 when it is damaged, thereby reducing the efficiency problem caused by the polishing shutdown. The spare mechanism is arranged on the side of the single machine 1 close to the processing flap wheel 17. The spare mechanism includes a spare box 38 and a positioning plate 39. A storage groove is provided in the spare box 38, and a spare flap wheel 42 is provided in the storage groove. The spare flap wheel 42 is in the same horizontal plane as the polishing rotating shaft 8. A positioning plate 39 is provided on the side of the spare box 38 away from the polishing control seat 3. One side of the positioning plate 39 is close to the spare flap wheel 42 and is provided with a C-shaped magnet 43. One side of the C-shaped magnet 43 is in contact with the metal sleeve 18 of the spare flap wheel 42. A clearance window 41 is provided on the side of the spare box 38 close to the polishing control seat 3, and the height of the clearance window 41 is greater than the diameter of the transmission cylinder 5. When it is needed When replacing the processing flap wheel 17, first retract the prismatic connecting rod 16 into the storage groove 6, and then adjust the cylinder 4 to control the polishing control seat 3 and the transmission cylinder 5 to slide horizontally along the horizontal slide rail 2. When the prismatic connecting rod 16 is in the spare flap wheel 42 position in the spare box 38, the belt drive shaft 9 controls the polishing rotating shaft 8 to rotate slowly, and the control sleeve 28 controls the polishing rotating shaft 8 to slowly push out the storage groove 6. At this time, the prismatic connecting rod 16 can be horizontally inserted into the metal sleeve 18, and the ejection block 20 pushes the constraint block 22 to a vertical posture and constrains the metal sleeve 18. Then the polishing control seat 3 and the transmission cylinder 5 are reset by the adjustment cylinder 4, so that the replaced spare flap wheel 42 can directly participate in the operation. For the spare box 38 where the spare flap wheel 42 is not placed after use, it can be replenished after the operation is completed, and the damaged processing flap wheel 17 can be taken out from the bottom of the machine tool.

[0049] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A steel pipe outer surface polishing device, characterized in that: include: A single machine (1), wherein two horizontal slide rails (2) are horizontally provided at the upper end of the single machine (1), a polishing control seat (3) is horizontally slidably provided above the two horizontal slide rails (2), an adjustment cylinder (4) is horizontally provided at the upper end of the single machine (1), one side of the adjustment cylinder (4) is connected to the polishing control seat (3), and a transmission cylinder (5) is provided on the side of the polishing control seat (3) away from the adjustment cylinder (4); A transmission assembly, wherein the transmission assembly includes a polishing rotating shaft (8) and a belt transmission shaft (9), a transmission control chamber (7) is sequentially opened in the transmission cylinder (5), the polishing rotating shaft (8) and the belt transmission shaft (9) are respectively rotated horizontally and plugged into two sides of the transmission control chamber (7), one side of the polishing rotating shaft (8) and the belt transmission shaft (9) are connected, and a processing flap wheel (17) is provided on the side of the polishing rotating shaft (8) outside the transmission cylinder (5) through a connecting assembly, and the connecting assembly includes a prismatic connecting rod (16), a polishing rotating shaft (8), a push block (20) and a plurality of restraining blocks (22); A control assembly is arranged in the transmission control chamber (7), and includes a control sleeve (28) and a plurality of control piston rods (35). The control sleeve (28) is sleeved on the polishing rotating shaft (8) and is placed on one side of the transmission control chamber (7); The standby mechanism is arranged on a side of a single machine (1) close to a processing flap wheel (17), and comprises a standby box (38) and a positioning plate (39).

2. A steel pipe outer surface polishing device according to claim 1, characterized in that: A receiving groove (6) is provided at the center of one side of the transmission cylinder (5), and a telescopic groove is provided between the receiving groove (6) and the transmission control chamber (7). A plurality of supporting rings (12) are embedded in the telescopic groove on one side of the transmission control chamber (7), and a plurality of supporting balls (13) are movably provided on the inner circumferences of the plurality of supporting rings (12). An elastic sealing rubber ring (14) is embedded in the telescopic groove on one side of the receiving groove (6). The polishing rotating shaft (8) moves horizontally and passes through the telescopic groove, and the inner circumference of the elastic sealing rubber ring (14) contacts the outer circumference of the polishing rotating shaft (8). The supporting balls (13) of the plurality of supporting rings (12) contact the outer circumferences of the polishing rotating shaft (8).

3. The steel pipe outer surface polishing device according to claim 2, characterized in that: The belt transmission shaft (9) passes through the center of one end of the transmission cylinder (5) away from the receiving groove (6) during the bearing process, and a transmission pulley is sleeved on one side of the transmission cylinder (5) during the belt transmission shaft (9). A prismatic transmission rod (10) is provided on one end of the belt transmission shaft (9) located in the transmission control chamber (7). A prismatic transmission groove (11) is provided on the center of one side of the polishing rotating shaft (8) located in the transmission control chamber (7), and one end of the prismatic transmission rod (10) is inserted into the prismatic transmission groove (11).

4. The steel pipe outer surface polishing device according to claim 3, characterized in that: A side baffle (15) is provided at one end of the polishing rotating shaft (8) located in the receiving groove (6), and a center of one end of the side baffle (15) extends out of the receiving groove (6) and is provided with a prismatic connecting rod (16). A metal sleeve (18) is provided at the center of the processing flap wheel (17), and the metal sleeve (18) is sleeved with the prismatic connecting rod (16). The cross-sectional area of ​​the prismatic connecting rod (16) is smaller than the cross-sectional area of ​​the side baffle (15). One side of the metal sleeve (18) is in contact with the side baffle (15), and a ring magnet (40) is embedded on the side of the side baffle (15) close to the metal sleeve (18).

5. The steel pipe outer surface polishing device according to claim 4, characterized in that: A prismatic groove (19) is provided at one end of the prismatic connecting rod (16) away from the side baffle (15), and a plurality of grooves are provided in the prismatic groove (19) on a side away from the side baffle (15). A rotation shaft (21) is horizontally provided in each groove. A connecting ear is provided on one side of the restraining block (22), and the connecting ear of the restraining block (22) is movably sleeved on the rotation shaft (21). When the restraining block (22) is rotated to a vertical posture through the rotation shaft (21), one side of the restraining block (22) contacts the side of the metal sleeve (18) away from the side baffle (15).

6. The steel pipe outer surface polishing device according to claim 5, characterized in that: The ejection block (20) is movably inserted into the prismatic groove (19), and a plurality of push blocks are provided on the side of the ejection block (20) away from the side baffle (15), and a push pin (24) is horizontally provided on one side of the push blocks. A strip groove (23) is provided through the side of the restraining block (22) away from the metal sleeve (18), and the restraining block (22) is sleeved with the push pin (24) through the strip groove (23).

7. The steel pipe outer surface polishing device according to claim 6, characterized in that: A step groove (29) is provided on one side of the polishing rotating shaft (8) located in the transmission control chamber (7); a control sleeve (28) is sleeved on the side of the polishing rotating shaft (8) provided with the step groove (29) through two sealed bearings; a piston groove (25) is provided on the side of the polishing rotating shaft (8) close to the ejection block (20); a restraining piston rod (26) is provided at the center of one side of the ejection block (20); one end of the restraining piston rod (26) is movably inserted into the piston groove (25) and is provided with a return spring (27); a plurality of transfer air grooves (30) are provided in the step groove (29) and communicated with the piston groove (25).

8. The steel pipe outer surface polishing device according to claim 7, characterized in that: One side of the control sleeve (28) is connected to the step groove (29) and is provided with a three-way joint (31). A one-side joint of the three-way joint (31) is plugged with a one-way valve (32). A control ring (33) is provided on the outer peripheral side of the control sleeve (28). A plurality of movable guide rods (34) are horizontally provided in the transmission control chamber (7). The control ring (33) is movably sleeved with the plurality of movable guide rods (34).

9. The steel pipe outer surface polishing device according to claim 8, characterized in that: A plurality of control piston rods (35) are horizontally and symmetrically provided on both sides of the control ring (33). The plurality of control piston rods (35) and the movable guide rod (34) are staggered. An extended piston tube (36) is horizontally provided on one side of the transmission control chamber (7) close to the control piston rod (35). An annular diversion groove (37) is provided on both sides of the transmission cylinder (5). The plurality of extended piston tubes (36) on both sides of the transmission control chamber (7) are respectively connected to the two annular diversion grooves (37). The plurality of control piston rods (35) on both sides of the control ring (33) are respectively plugged into the plurality of extended piston tubes (36) on both sides of the transmission control chamber (7), and an air receiving groove is provided on one side of the annular diversion groove (37) that penetrates the transmission cylinder (5).

10. The steel pipe outer surface polishing device according to claim 9, characterized in that: The spare box (38) is provided with a receiving groove, and a spare flap wheel (42) is provided in the receiving groove. The spare flap wheel (42) and the polishing rotating shaft (8) are in the same horizontal plane. A positioning plate (39) is provided on the side of the spare box (38) away from the polishing control seat (3). One side of the positioning plate (39) is close to the spare flap wheel (42) and is provided with a C-shaped magnet (43). One side of the C-shaped magnet (43) is in contact with the metal sleeve (18) of the spare flap wheel (42). A clearance window (41) is provided on the side of the spare box (38) close to the polishing control seat (3), and the height of the clearance window (41) is greater than the diameter of the transmission cylinder (5).

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