Grinding machine outer wall fine adjustment grinding structure and pipe inside and outside grinding machine

Abstract

The invention relates to a grinding machine outer wall fine adjustment grinding structure and a pipe inside and outside grinding machine, and discloses a grinding structure which can convey pipes with outer walls deformed or slightly different sizes through a conveying assembly and then grind the outer walls of the pipes attached with sundries twice through the grinding structure. The pipe polishing device is simple in structure, high in polishing fineness, low in use cost, capable of achieving automatic alignment and capable of continuously polishing deformed pipes or pipes with slightly different outer wall diameters without pausing the machine. The device is characterized in that the device comprises a deformation conveying assembly and a deformation outer wall grinding assembly, the deformation conveying assembly is arranged on a grinding box, the deformation outer wall grinding assembly is arranged on the grinding box, and the deformation conveying assembly is used for continuously conveying pipes with the outer walls deformed or the outer walls slightly different in size; and then the deformed outer wall polishing assembly is used for polishing the pipes with the outer walls deformed or the outer walls slightly different in size twice.

Description

Technical Field

[0001] The present invention discloses a fine-tuning grinding structure for the outer wall of a grinder and a pipe inner and outer grinder, which relate to a fine-tuning grinding structure installed on a pipe inner and outer grinder, and belong to the technical field of steel grinding, and particularly relate to a fine-tuning grinding structure with high grinding precision, low use cost, automatic alignment, and continuous grinding of pipes that have been deformed or have slight differences in outer wall diameters without pausing the machine. Background Art

[0002] There may be a hardened layer on the surface of the pipe after mechanical processing. This hardened layer is brittle and has residual stress. It is easy to cause cracking and other problems during the early use of the pipe. It is also very easy to cause oxidation, rust or accumulation of impurities during the storage of the pipe. Therefore, they often need to be polished before use. The surface of the pipe after polishing is smooth, which is conducive to subsequent processing operations, such as painting, plating, etc. These coatings or plating can provide additional protection and extend the service life of the pipe. Therefore, polishing is an important step in pipe pretreatment, which is not only related to the appearance and performance of the pipe, but also directly affects its performance and life in subsequent applications. The existing pipe polishing device can generally only polish the inner wall or outer wall of the pipe separately. When the entire pipe needs to be polished, it is necessary to use a special internal polishing device to polish the inner wall and then use an external polishing device to polish the outer wall. In this process, workers are required to move the pipe many times, which not only has a high processing cost but also increases the workload and reduces work efficiency.

[0003] Announcement No. CN106863033B discloses a pipe grinder, comprising a workbench, motor frames are installed on both sides of the bottom of the inner cavity of the workbench, a motor is installed on the top of the motor frame, one side of the motor is connected to an output shaft, one side of the output shaft is connected to an operating table, one side of the operating table is connected to an electric telescopic rod, one side of the electric telescopic rod is connected to a grinding sheet, a baffle is fixedly connected to the bottom of the operating table, a buffer spring is connected to the bottom of the baffle, a support plate is installed at the bottom of the buffer spring, a pneumatic rod is fixedly connected to the bottom of the support plate, a fixed block is installed at the bottom of the pneumatic rod, a sliding block is movably connected to the top of the inner cavity of the workbench, a fixed seat is installed at the bottom of the sliding block, a clamping ring is provided in the inner cavity of the fixed seat, screws are connected to both sides of the clamping ring, a nut is connected to one side of the screw, a clamping block is fixedly connected to the bottom of the clamping ring, and pins are movably connected to both sides of the clamping block. The grinder can only grind both sides of the outer wall of the pipe. Grinding the outer wall requires workers to rotate the pipe multiple times, which has extremely low work efficiency and is easy to accidentally injure workers.

[0004] Announcement No. CN216633696U discloses a pipe inner wall grinding machine, including a base, a positioning mechanism fixedly arranged on the base, and a grinding mechanism arranged on the base, the positioning mechanism includes a plurality of positioning chucks arranged at one end of the base and a positioning seat arranged on the base, the positioning chuck is used to position one end of the pipe to be polished, the positioning seat is provided with a plurality of positioning grooves, the positioning grooves are used to position the other end of the pipe to be polished, and the grinding mechanism is used to grind the inner wall of the positioned pipe. The grinder can only grind the inner wall of the pipe, and after grinding, it needs to be manually reset and then grind for the second time, which increases extra workload.

[0005] In order to improve the above problems, the applicant filed a Chinese invention patent application entitled "A pipe internal and external grinding machine", which uses a transmission component to position the pipe to be polished in the up and down and front and back directions while driving the pipe to move left and right, and then uses a grinding component to grind the inner and outer walls of the pipe. However, the above pipe internal and external grinding device cannot grind pipes with slight deformation on the outer wall, and can only grind pipes with fixed outer wall sizes. Even if there is a slight change in size, it is necessary to replace the outer wall grinding components of different sizes, which is inconvenient to use. Summary of the invention

[0006] In order to improve the above situation, the present invention provides a grinding machine outer wall fine-tuning grinding structure and a pipe inner and outer grinding machine, which provides a grinding structure that can produce deformation on the outer wall or slightly different sizes of pipes through a transmission component, and then grind the outer wall of the pipe with debris twice through a grinding structure. The grinding precision is high, the use cost is low, and it can be automatically aligned. The machine can be continuously ground without stopping the machine to grind the deformed or slightly different outer wall diameter pipes.

[0007] The outer wall fine-tuning grinding structure of a grinder and the inner and outer wall grinding machine of a pipe of the present invention are realized as follows: The outer wall fine-tuning grinding structure of a grinder of the present invention comprises a deformation transmission component and a deformation outer wall grinding component. The invention is characterized in that the deformation transmission component is arranged on the polishing box, and the deformation outer wall polishing component is arranged on the polishing box, and the deformation transmission component is used to continuously transmit the pipes with deformed outer walls or slight differences in outer wall sizes, and then the deformation outer wall polishing component is used to polish the pipes with deformed outer walls or slight differences in outer wall sizes twice. The deformation transmission component is composed of an anti-skid transmission wheel, a deformation transmission wheel, a transmission motor, a transmission rubber sleeve, a positioning groove, a transmission support rubber and an anti-skid rubber ring. The transmission motor is placed on the outer side of the grinding box. Preferably, the number of the transmission motors is greater than 1, and the transmission motors greater than 1 are placed on the same straight line. There are multiple anti-skid transmission wheels, and there are two ways to connect the multiple anti-skid transmission wheels. One is that one end of the anti-skid transmission wheel is connected to the inner side of the grinding box through a bearing, and the other end of the anti-skid transmission wheel is connected to the motor shaft of the transmission motor and a bearing is placed between the anti-skid transmission wheel and the grinding box. The other is that both ends of the anti-skid transmission wheel are connected to the inner side of the grinding box through bearings. Preferably, the plurality of anti-skid transmission wheels are on the same straight line, the anti-skid transmission wheels with two different connection modes are placed alternately, the diameter of the anti-skid transmission wheel increases gradually from the middle to both ends in an arc shape, and cylinders with smaller diameters are provided at both ends of the anti-skid transmission wheel. The anti-skid rubber ring is placed on the anti-skid transmission wheel. Preferably, the cross section of the anti-slip rubber ring is in the shape of a circular ring, and the cross section diameter of the anti-slip rubber ring gradually increases in an arc shape from the middle to both ends. The two ends of the deformation transmission wheel are connected to the inner side of the grinding box through bearings. Preferably, the deformation transmission wheel is provided in plurality, the deformation transmission wheel and the anti-skid transmission wheel are provided in the same number, the plurality of deformation transmission wheels are in a straight line, the deformation transmission wheel and the anti-skid transmission wheel are arranged above the anti-skid transmission wheel in a one-to-one correspondence, the diameter of the deformation transmission wheel increases gradually in an arc shape from the middle to both ends, and cylinders with smaller diameters are arranged at both ends of the deformation transmission wheel. There is a positioning groove on the side of the deformation transmission wheel. Preferably, the cross-sectional diameter of the positioning groove increases gradually from the middle to both ends in an arc shape. The transmission rubber sleeve is placed on the positioning groove. Preferably, the cross-sectional diameter of the transmission rubber sleeve gradually increases from the middle to both ends in an arc shape, and the interior of the transmission rubber sleeve is a hollow structure. The transmission support rubber is fixedly placed inside the transmission rubber sleeve. Preferably, the transmission support rubber is in an annular structure, the inner and outer annular surfaces of the transmission support rubber are connected to the two side surfaces of the hollow part of the transmission rubber sleeve, and a plurality of the transmission support rubbers are provided, and the plurality of the transmission support rubbers are arranged equidistantly along the axial direction of the deformation transmission wheel. The deformable outer wall grinding component is composed of a sliding groove, a sliding bar, a support plate, an outer wall grinding motor, a grinding rubber, a grinding bead, a first placement hole, a grinding cavity, a first bearing, a placement cavity, a second bearing, a grinding groove, a grinding spring, a second placement hole, a transmission gear, a deformation groove, a slave gear and a grinding support rubber. The sliding groove is placed inside the grinding box. Preferably, there are two sliding grooves, and the two sliding grooves are symmetrical about the polishing box. Sliding bars are fixed on both sides of the support plate. Preferably, the sliding bar is slidably connected and placed in the sliding groove, and the sliding bar is symmetrical with respect to the supporting plate. The support plate has a built-in placement cavity. The outer wall grinding motor is fixed at one end of the support plate. The transmission gear is placed in the placement cavity, one end of the gear shaft of the transmission gear is connected to the support plate through a bearing, and the other end of the transmission gear is connected to the motor shaft of the outer wall grinding motor and a support bearing is placed between the transmission gear and the support plate. A first placement hole is disposed on one side of the support plate. A second placement hole is provided on the other side of the support plate. Preferably, the first placement hole is a cylindrical structure, the second placement hole is a cylindrical structure, the central axes of the first placement hole and the second placement hole are the same, and the diameter of the second placement hole is larger than the diameter of the first placement hole. The outer ring surface of the first bearing is fixedly placed on the side surface of the first placement hole. The outer ring surface of the second bearing is fixedly placed on the side surface of the second placement hole. Preferably, the diameter of the inner ring surface of the second bearing is larger than the diameter of the inner ring surface of the first bearing. One side of the grinding cavity is fixedly connected to the inner ring surface of the first bearing, and the other side of the grinding cavity is fixedly connected to the inner ring surface of the second bearing. Preferably, the cross-sectional diameter of the grinding chamber gradually decreases from one side to the middle and remains unchanged from the middle to the other side, and the cross-sectional diameter of the grinding chamber is a circular ring structure. The slave gear sleeve is placed on the outer ring surface of the grinding chamber, and the slave gear and the transmission gear mesh with each other. The grinding rubber is bonded to the inner wall of the grinding cavity. Preferably, the polishing rubber is made of high temperature resistant material. Preferably, the cross-sectional diameter of the polishing rubber gradually decreases from one end to the middle and remains unchanged from the middle to the other end. The cross-sectional diameter of the polishing cavity is an annular structure, and the two ends of the polishing rubber are sleeved on both sides of the polishing cavity. The grinding rubber has deformation grooves inside. Preferably, the cross-sectional diameter of the deformation groove gradually decreases from one end to the middle and remains unchanged from the middle to the other end, and the cross-sectional diameter of the deformation groove is a circular ring structure. The grinding spring is fixed in the deformation groove, and the two ends of the grinding spring are connected to the two sides of the deformation groove. Preferably, the grinding springs are provided in a plurality of groups, and the plurality of groups of grinding springs are arranged equidistantly along the circumferential direction of the deformation groove, and each group of the grinding springs is provided with a plurality of grinding springs, and the plurality of grinding springs are arranged equidistantly along the side contour line direction of the deformation groove. The polished support rubber is fixedly placed inside the deformation groove, and the longitudinal section profile of the polished support rubber is the same as the longitudinal section profile of the deformation groove. Preferably, the polishing support rubber is provided in plurality, the number of the polishing support rubber is the same as the number of the polishing spring groups, the polishing support rubbers are arranged equidistantly along the circumference of the deformation groove, and the polishing support rubbers and each group of polishing springs are arranged alternately. There are grinding grooves on the inner side of the grinding rubber. Preferably, the grinding grooves are evenly distributed on the inner side of the grinding rubber, the cross-sectional diameter of the grinding grooves increases gradually in an arc shape from one end to one third of the inner annular surface of the grinding rubber, and decreases gradually in an arc shape from one third to the other end, and the other end of the grinding groove is arc-shaped and closed. The grinding bead card is placed inside the grinding groove. Preferably, the polishing beads are spherical in structure, a plurality of the polishing beads are provided, the number of the polishing beads is the same as the number of the polishing grooves, and the polishing beads and the polishing grooves correspond one to one. Furthermore, fixing screws are arranged at both ends of the polishing rubber, and the fixing screws pass through the polishing rubber thread connection and are placed on the polishing cavity. The fixing screws are arranged at equal distances along the circumference of the polishing rubber. Furthermore, super-hard grinding particles are arranged on the inner side of the grinding rubber, and the super-hard grinding particles are arranged on the inner ring surface of the grinding rubber whose cross-sectional diameter gradually decreases from one end to the middle, and the fine grinding particles are arranged on the inner ring surface of the grinding rubber whose cross-sectional diameter remains unchanged from the middle to the other end, and the hardness of the super-hard grinding particles is greater than that of the fine grinding particles; The present invention also relates to a pipe internal and external grinding machine, which comprises a supporting component, a transmission component, an inner wall grinding component and an outer wall grinding component. The invention is characterized in that the transmission component is arranged on the support component, the inner wall grinding component is arranged on the support component, and the outer wall grinding component is arranged on the support component. The transmission component is used to position the pipe to be ground in the up-down and forward-backward directions while driving the pipe to move left and right, and then the grinding component is used to grind the inner wall and the outer wall of the pipe. The support assembly is composed of a grinding box, a placement plate, a connecting plate, a sliding groove, a first limiting groove and a second limiting groove. The placement plate is fixed at one end of the grinding box. Preferably, the polishing box is arranged in a U-shaped configuration. A first limiting groove is provided in the middle of the placement plate, and the cross section of the first limiting groove is a cross-shaped structure. The connecting plate is fixedly placed on the polishing box, the connecting plate and the placing plate are placed in parallel, a second limiting groove is opened in the middle of the connecting plate, and the cross section of the second limiting groove is a cross-shaped structure. Preferably, the central axes of the first limiting groove and the second limiting groove are the same. The sliding groove is placed inside the grinding box. Preferably, there are two sliding grooves, and the two sliding grooves are symmetrical about the polishing box. Preferably, the sliding groove is in an equilateral trapezoidal structure with the shorter side being located inside the polishing box. The transmission assembly is composed of a transmission motor, a main transmission shaft, a secondary transmission shaft and a transmission wheel. Two transmission motors are placed on the grinding box. Preferably, the conveying motor is in an intermittent working state, and the temporary load rate of the conveying motor is 15%. Preferably, the two conveying motors rotate in the same direction and at the same speed at the same time. There are two main transmission shafts, and the two main transmission shafts correspond to the two transmission motors one by one. A transmission wheel is disposed on the main transmission shaft, and the transmission wheel and the main transmission shaft are coaxially arranged. One end of the main transmission shaft is connected to one side of the polishing box through a bearing, and the other end of the main transmission shaft is connected to the motor shaft of the corresponding transmission motor and a supporting bearing is placed between the main transmission shaft and the polishing box. Both ends of the auxiliary transmission shaft are connected to the inner side of the grinding box through bearings. Preferably, the auxiliary transmission shafts are provided in plurality, and the plurality of auxiliary transmission shafts are arranged equidistantly along the length direction of the polishing box. The secondary transmission shaft is located above the primary transmission shaft. A transmission wheel is disposed on the secondary transmission shaft, and the transmission wheel and the secondary transmission shaft are coaxially arranged. Preferably, there is a channel for accommodating the passage of the pipe between the conveying wheel disposed on the main conveying shaft and the conveying wheel disposed on the auxiliary conveying shaft. Preferably, the inner diameter of the transmission wheel increases gradually from the middle to both ends in an arc shape, and an anti-skid pad is arranged on the surface of the transmission wheel. The anti-skid pad has two layers, the inner layer connected to the transmission wheel is a sponge pad, and the outer layer in contact with the pipe is a rubber pad; The inner wall grinding assembly is composed of an inner wall grinding motor, a connecting shaft, a first limiting ring, a second limiting ring, a grinding head and grinding particles. The inner wall grinding motor is placed on the placement plate. One end of the connecting shaft is placed on the motor shaft of the inner wall grinding motor, and the connecting shaft passes through the connecting plate and is coaxially placed with the second limiting groove. The connecting shaft is provided with a first limiting ring and a second limiting ring, the connecting shaft and the first limiting ring and the second limiting ring are coaxially arranged, the first limiting ring is rotatably placed in the first limiting groove, the second limiting ring is rotatably placed in the second limiting groove, the other end of the connecting shaft is provided with a threaded hole, and the thread direction is the same as the rotation direction of the motor when it is working. Preferably, the grinding head is threadedly connected to the connecting shaft. The cross-sectional diameter of the middle section of the grinding head is greater than the width of the two ends, and the cross-sectional diameters of the two ends of the grinding head gradually decrease. The grinding head is provided with reverse threads and rotates in the opposite direction to the inner wall grinding motor when working. The grinding particles are placed on the grinding head. Preferably, the grinding particles are in multiple groups, and the multiple groups of grinding particles are arranged equidistantly along the circumference of the grinding head. A group of the grinding particles has multiple grinding particles, and the multiple grinding particles in the same group are arranged equidistantly along the axial direction of the grinding head. The outer wall grinding assembly is composed of a sliding bar, a support plate, a cavity, a hole, a protective plate, an outer wall grinding motor, a main gear, a grinding bearing, a grinding gear, a fixing ring and outer grinding particles. Sliding bars are fixedly arranged on both sides of the support plate. The outer contour of the sliding bar is the same as that of the sliding groove, and the sliding bar is slidably connected and placed in the sliding groove. Preferably, the cavity is arranged in an 8-shape, and the cavity does not penetrate the support plate. The hole is set through the support plate and is aligned with the central axis of the upper circular ring of the cavity. The protective plate is fixed on the support plate and placed vertically to the support plate. The outer wall grinding motor is placed on the support plate and under the protective plate. One end of the main gear is connected to the support plate through a bearing, and the other end of the main gear is connected to the motor shaft of the outer wall grinding motor and a support bearing is placed between the main gear and the support plate. The grinding gear is rotatably placed in the cavity and meshes with the main gear. A circular groove is opened in the middle of the grinding gear, and the external grinding particles are placed in the circular groove. The grinding gear is provided with fixing rings on both sides. The inner ring of the grinding bearing is connected to the fixed ring, and the outer ring of the grinding bearing is fixedly connected to the hole wall of the hole. There are multiple groups of external grinding particles, and the multiple groups of external grinding particles are arranged at equal distances along the circumferential direction of the inner annular surface of the grinding gear. There are multiple external grinding particles in one group, and the multiple external grinding particles in the same group are arranged at equal distances along the axial direction of the grinding gear. Further, the grinding particles are replaced by grinding rings, and the grinding rings are wound around the annular side surface of the grinding head in a threaded shape; Furthermore, an oblique grinding head is fixedly arranged on one side of the grinding head, the bottom surface of one side of the oblique grinding head is the same as the side surface of the grinding head, and the cross-sectional diameter of the side surface of the oblique grinding head gradually decreases. The first grinding columns are provided in multiple groups, and the multiple groups of first grinding columns are arranged at equal distances along the axial direction of the oblique grinding head. A group of the first grinding columns has multiple first grinding columns, and the multiple first grinding columns in the same group are arranged at equal angles along the circumferential direction of the side surface of the oblique grinding head. The second grinding columns are provided in multiple groups, and the multiple groups of second grinding columns are arranged equidistantly along the axial direction of the grinding head. A group of the second grinding columns has multiple second grinding columns, and the multiple second grinding columns in the same group are arranged equidistantly along the circumferential direction of the side surface of the grinding head. Fixed blocks are fixed on both sides of the first grinding column. The fixed blocks are triangular block structures, and the triangular plane is parallel to the oblique grinding head table. Fixed blocks are fixedly arranged on both sides of the second grinding column. The fixed blocks are in a triangular block structure, and the triangular plane and the oblique grinding head table are arranged in parallel. Beneficial Effects

[0008] 1. It can grind pipes that are prone to deformation or have a lot of impurities attached to the outer wall to improve the grinding fineness; the grinding rubber and grinding beads can be replaced separately, effectively reducing the cost of use.

[0009] Second, it can continuously grind pipes with small differences in outer wall sizes without the need for temporary machines, and the work efficiency is high.

[0010] 3. Automatic alignment and wireless adjustment during the transmission process can reduce workload.

[0011] 4. The surface of the transmission wheel is covered with soft material and is replaceable, which increases the service life of the transmission wheel and reduces the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural diagram of a pipe internal and external grinding machine of the present invention; Figure 2 It is a structural schematic diagram of a pipe internal and external grinding machine of the present invention; Figure 3 This is a schematic diagram of the structure of a pipe internal and external grinding machine of the present invention, which only shows the top view structure of the pipe internal and external grinding device; Figure 4 It is a structural schematic diagram of a pipe internal and external grinding machine of the present invention; Figure 5 It is a three-dimensional structural diagram of a pipe internal and external grinding machine for grinding gears of the present invention; Figure 6 This is a three-dimensional structural diagram of Example 2 of a pipe internal and external grinding machine of the present invention, in which only the structure of the grinding head is shown; Figure 7 This is a three-dimensional structural diagram of Example 3 of a pipe internal and external grinding machine of the present invention, in which only the structure of the grinding head is shown; Figure 8 It is a three-dimensional structural schematic diagram of a fine-tuning grinding structure of an outer wall of a grinder according to the present invention; Fig. 9 It is a three-dimensional structural schematic diagram of a fine-tuning grinding structure of an outer wall of a grinder according to the present invention, in which only the structure of the deformation transmission wheel is shown; Fig.10 It is a structural schematic diagram of a fine-tuning grinding structure of the outer wall of a grinder of the present invention, in which only the structure of the deformation transmission wheel is shown; Fig.11 It is a three-dimensional structural schematic diagram of a fine-tuning grinding structure of the outer wall of a grinder of the present invention, in which only the structure of the anti-slip transmission wheel is shown; Fig.12 It is a three-dimensional structural schematic diagram of a fine-tuning grinding structure of an outer wall of a grinder according to the present invention, in which only the structure of the deformation outer wall grinding component is shown; Fig.13 It is a structural schematic diagram of a fine-tuning grinding structure of an outer wall of a grinder according to the present invention, wherein only the structure of the deformation outer wall grinding component is shown; Fig.14 It is a structural schematic diagram of a fine-tuning grinding structure of an outer wall of a grinder according to the present invention, wherein only the structure of the deformation outer wall grinding component is shown; Fig.15 It is a three-dimensional structural schematic diagram of Example 2 of a fine-tuning grinding structure for the outer wall of a grinder according to the present invention, in which only the structure of the deformation outer wall grinding component is shown; Fig.16 It is a three-dimensional structural schematic diagram of Example 3 of a fine-tuning grinding structure for the outer wall of a grinder according to the present invention, in which only the structure of the deformation outer wall grinding component is shown; Attached photos

[0013] The components include: a grinding box (1), a placement plate (2), a connecting plate (3), a sliding groove (4), a sliding bar (5), a supporting plate (6), a transmission motor (7), an inner wall grinding motor (8), a first limiting groove (9), a second limiting groove (10), an outer wall grinding motor (11), a grinding head (12), grinding particles (13), a connecting shaft (14), a second limiting ring (15), a first limiting ring (16), a secondary transmission shaft (17), a main transmission shaft (18), a protective plate (19), a transmission wheel (20), a cavity (21), a hole (22), a main gear (23), a grinding bearing (24), a grinding gear (25), an outer grinding particle (26), a fixing ring (27), a reverse thread (28), a grinding ring (29), an inclined Grinding head (30), first grinding column (31), fixing block (32), second grinding column (33), anti-skid transmission wheel (34), deformation transmission wheel (35), transmission rubber sleeve (36), positioning groove (37), transmission support rubber (38), anti-skid rubber ring (39), grinding rubber (40), grinding beads (41), first placement hole (42), grinding cavity (43), first bearing (44), placement cavity (45), second bearing (46), grinding groove (47), grinding spring (48), second placement hole (49), transmission gear (50), deformation groove (51), slave gear (52), grinding support rubber (53), fixing screw (54), superhard grinding particles (55), fine grinding particles (56) DETAILED DESCRIPTION Example 1

[0014] The present invention discloses a grinding machine outer wall fine-tuning grinding structure, which comprises a deformation transmission component and a deformation outer wall grinding component. The invention is characterized in that the deformation transmission component is arranged on the grinding box (1), and the deformation outer wall grinding component is arranged on the grinding box (1). The deformation transmission component is used to continuously transmit the pipe whose outer wall is deformed or whose outer wall size has a slight difference, and then the deformation outer wall grinding component is used to grind the pipe whose outer wall is deformed or whose outer wall size has a slight difference twice. The deformation transmission component is composed of an anti-skid transmission wheel (34), a deformation transmission wheel (35), a transmission motor (7), a transmission rubber sleeve (36), a positioning groove (37), a transmission support rubber (38) and an anti-skid rubber ring (39). The transmission motor (7) is placed on the outer side of the grinding box (1). Preferably, the number of the transmission motors (7) is greater than 1, and the transmission motors (7) greater than 1 are placed on the same straight line. A plurality of anti-slip transmission wheels (34) are provided, and two connection modes are provided for the plurality of anti-slip transmission wheels (34). One mode is that one end of the anti-slip transmission wheel (34) is connected to the inner side surface of the grinding box (1) via a bearing, and the other end of the anti-slip transmission wheel (34) is connected to the motor shaft of the transmission motor (7) and a bearing is arranged between the anti-slip transmission wheel (34) and the grinding box (1). The other mode is that both ends of the anti-slip transmission wheel (34) are connected to the inner side surface of the grinding box (1) via bearings. Preferably, the plurality of anti-slip transmission wheels (34) are on the same straight line, the anti-slip transmission wheels (34) of two different connection modes are placed alternately, the diameter of the anti-slip transmission wheel (34) gradually increases in an arc shape from the middle to both ends, and cylinders with smaller diameters are provided at both ends of the anti-slip transmission wheel (34). The anti-skid rubber ring (39) is placed on the anti-skid transmission wheel (34). Preferably, the cross section of the anti-slip rubber ring (39) is in the shape of a circular ring, and the cross section diameter of the anti-slip rubber ring (39) gradually increases in an arc shape from the middle to both ends. The two ends of the deformation transmission wheel (35) are connected to the inner side of the grinding box (1) through bearings. Preferably, a plurality of the deformation transmission wheels (35) are provided, the number of the deformation transmission wheels (35) and the anti-slip transmission wheels (34) are the same, the plurality of the deformation transmission wheels (35) are in a straight line, the deformation transmission wheels (35) and the anti-slip transmission wheels (34) are arranged one by one above the anti-slip transmission wheels (34), the diameter of the deformation transmission wheels (35) gradually increases in an arc shape from the middle to both ends, and cylinders with smaller diameters are arranged at both ends of the deformation transmission wheels (35). A positioning groove (37) is provided on the side of the deformation transmission wheel (35). Preferably, the cross-sectional diameter of the positioning groove (37) gradually increases in an arc shape from the middle to both ends. The transmission rubber sleeve (36) is placed on the positioning groove (37). Preferably, the cross-sectional diameter of the transmission rubber sleeve (36) gradually increases in an arc shape from the middle to both ends, and the interior of the transmission rubber sleeve (36) is a hollow structure. The transmission support rubber (38) is fixedly placed inside the transmission rubber sleeve (36). Preferably, the transmission support rubber (38) is in a circular ring structure, the inner and outer ring surfaces of the transmission support rubber (38) are connected to the two side surfaces of the hollow portion of the transmission rubber sleeve (36), a plurality of the transmission support rubbers (38) are provided, and the plurality of the transmission support rubbers (38) are arranged at equal distances along the axial direction of the deformation transmission wheel (35). The deformable outer wall grinding component comprises a sliding groove (4), a sliding bar (5), a support plate (6), an outer wall grinding motor (11), a grinding rubber (40), a grinding bead (41), a first placement hole (42), a grinding cavity (43), a first bearing (44), a placement cavity (45), a second bearing (46), a grinding groove (47), a grinding spring (48), a second placement hole (49), a transmission gear (50), a deformation groove (51), a slave gear (52) and a grinding support rubber (53). The sliding groove (4) is placed inside the grinding box (1). Preferably, two sliding grooves (4) are provided, and the two sliding grooves (4) are symmetrical with respect to the polishing box (1). Sliding bars (5) are fixedly mounted on both sides of the support plate (6). Preferably, the sliding bar (5) is slidably connected and placed in the sliding groove (4), and the sliding bar (5) is symmetrical with respect to the supporting plate (6). The support plate (6) has a placement cavity (45) built therein. The outer wall grinding motor (11) is fixedly placed at one end of the support plate (6). The transmission gear (50) is placed in the placement cavity (45), one end of the gear shaft of the transmission gear (50) is connected to the support plate (6) via a bearing, the other end of the transmission gear (50) is connected to the motor shaft of the outer wall grinding motor (11) and a support bearing is placed between the transmission gear (50) and the support plate (6). A first placement hole (42) is disposed on one side of the support plate (6). A second placement hole (49) is provided on the other side of the support plate (6). Preferably, the first placement hole (42) is a cylindrical structure, the second placement hole (49) is a cylindrical structure, the central axes of the first placement hole (42) and the second placement hole (49) are the same, the diameter of the second placement hole (49) is greater than the diameter of the first placement hole (42), The outer ring surface of the first bearing (44) is fixedly placed on the side surface of the first placement hole (42). The outer ring surface of the second bearing (46) is fixedly placed on the side surface of the second placement hole (49). Preferably, the inner ring surface diameter of the second bearing (46) is greater than the inner ring surface diameter of the first bearing (44). One side of the grinding cavity (43) is fixedly connected to the inner ring surface of the first bearing (44), and the other side of the grinding cavity (43) is fixedly connected to the inner ring surface of the second bearing (46). Preferably, the cross-sectional diameter of the grinding cavity (43) gradually decreases from one side to the middle and remains unchanged from the middle to the other side, and the cross-sectional diameter of the grinding cavity (43) is a circular ring structure. The slave gear (52) is sleeved on the outer annular surface of the grinding chamber (43), and the slave gear (52) and the transmission gear (50) are meshed with each other. The grinding rubber (40) is bonded to the inner wall of the grinding cavity (43). Preferably, the polishing rubber (40) is made of a high temperature resistant material. Preferably, the cross-sectional diameter of the polishing rubber (40) gradually decreases from one end to the middle and remains unchanged from the middle to the other end; the cross-sectional diameter of the polishing cavity (43) is an annular structure; the two ends of the polishing rubber (40) are sleeved on both sides of the polishing cavity (43); The grinding rubber (40) has a deformable groove (51) formed therein. Preferably, the cross-sectional diameter of the deformation groove (51) gradually decreases from one end to the middle and remains unchanged from the middle to the other end. The cross-sectional diameter of the deformation groove (51) is a circular ring structure. The grinding spring (48) is fixedly placed in the deformation groove (51), and the two ends of the grinding spring (48) are connected to the two side surfaces of the deformation groove (51). Preferably, the grinding springs (48) are provided in a plurality of groups, and the plurality of groups of grinding springs (48) are arranged at equal distances along the circumferential direction of the deformation groove (51); each group of the grinding springs (48) is provided with a plurality of grinding springs (48), and the plurality of grinding springs (48) are arranged at equal distances along the side contour line direction of the deformation groove (51). The polishing support rubber (53) is fixedly placed inside the deformation groove (51), and the longitudinal section profile of the polishing support rubber (53) is the same as the longitudinal section profile of the deformation groove (51). Preferably, a plurality of the polishing support rubbers (53) are provided, the number of the polishing support rubbers (53) is the same as the number of groups of polishing springs (48), the polishing support rubbers (53) are arranged at equal distances along the circumference of the deformation groove (51), and the polishing support rubbers (53) and each group of polishing springs (48) are arranged alternately. A grinding groove (47) is provided on the inner side of the grinding rubber (40). Preferably, the grinding grooves (47) are evenly distributed on the inner side of the grinding rubber (40), the cross-sectional diameter of the grinding grooves (47) gradually increases in an arc shape from one end to one third of the inner annular surface of the grinding rubber (40), and gradually decreases in an arc shape from one third to the other end, and the other end of the grinding grooves (47) is arc-shaped and closed. The grinding bead (41) is clamped inside the grinding groove (47). Preferably, the polishing beads (41) are spherical in structure, a plurality of the polishing beads (41) are provided, the number of the polishing beads (41) and the number of the polishing grooves (47) are the same, and the polishing beads (41) and the polishing grooves (47) correspond one to one; When in use, the pipe is placed between the deformation transmission wheel (35) and the anti-slip transmission wheel (34). According to the curvature of the pipe, the central axis of the pipe and the central axis of the grinding chamber (43) can be aligned in a straight line. The deformation transmission wheel (35) has a large surface friction force, which can drive the pipe to slide. When the outer wall of the pipe has a large amount of impurities, the pipe can still be driven to be transmitted under the large deformation and rebound force of the deformation transmission wheel (35), thereby avoiding deformation and other damage to the pipe caused by excessive squeezing force. When the pipe enters the grinding area, the outer wall grinding motor (11) drives the grinding chamber (43) to rotate, and the grinding beads (41) start to clean and grind the surface of the pipe. The grinding beads (41) on the inclined surface of the grinding rubber (40) can grind the large impurities on the pipe. The tube is initially polished. As the tube continues to move forward, the polishing beads (41) on the cylindrical part of the polishing rubber (40) polish the tube more carefully and evenly. During the polishing process, if the surface of the tube is slightly deformed or the outer wall of the tube has a slight difference in size, the polishing spring (48) can make the polishing rubber (40) adapt to these changes to ensure that the polishing effect is not disturbed. When the tube passes through the support plate (6) and the deformation transmission wheel (35) and the anti-slip transmission wheel (34) are driven by the transmission motor (7) to move in the opposite direction, the polishing beads (41) perform secondary polishing on the tube to further ensure the treatment quality of the tube surface. Finally, the thoroughly polished tube will completely separate from the support plate (6), completing the entire polishing process. Example 2

[0015] The difference between this embodiment and the first embodiment is that fixing screws (54) are arranged at both ends of the polishing rubber (40), the fixing screws (54) pass through the polishing rubber (40) and are threadedly connected to the polishing cavity (43), and the fixing screws (54) are arranged at equal distances along the circumference of the polishing rubber (40). When in use, the fixing screws (54) can ensure that the polishing rubber (40) is stably attached to the polishing cavity (43) during the polishing process, and prevent the polishing rubber (40) from falling off due to centrifugal force or other forces generated by high-speed rotation or contact with the pipe, thereby ensuring the polishing quality and the safety of the operator and the equipment. Example 3

[0016] The difference between this embodiment and embodiment 1 is that: the inner side of the polishing rubber (40) is provided with super-hard polishing particles (55), the super-hard polishing particles (55) are stuck on the inner annular surface of the polishing rubber (40) whose cross-sectional diameter gradually decreases from one end to the middle, and the fine polishing particles (56) are stuck on the inner annular surface of the polishing rubber (40) whose cross-sectional diameter remains unchanged from the middle to the other end, and the hardness of the super-hard polishing particles (55) is greater than the hardness of the fine polishing particles (56); when in use, when facing a pipe with larger impurities, the super-hard polishing particles (55) can be applied to the outer surface of the pipe. Rough grinding is performed so that the pipe can continue to move forward. The fine grinding particles (56) can perform detailed processing on the outer surface of the pipe, smooth the surface of the pipe and remove the remaining small impurities to achieve good smoothness. The hardness of the super-hard grinding particles (55) is greater than that of the fine grinding particles (56). The super-hard grinding particles (55) are responsible for removing difficult large impurities, while the fine grinding particles (56) optimize the surface finish of the pipe. Through this graded grinding method, not only the use efficiency and life of the grinding particles are improved, but also it is ensured that the surface quality of the pipe finally processed meets the requirements; The anti-skid rubber ring (39) is sleeved with the anti-skid transmission wheel (34); the anti-skid transmission wheel (34) has elasticity and a large surface friction force, and can drive the pipe to slide while reducing damage to the pipe and the anti-skid transmission wheel (34); The cross-sectional diameter of the transmission rubber sleeve (36) gradually increases from the middle to the two ends in an arc shape. The interior of the transmission rubber sleeve (36) is a hollow structure. The transmission support rubber (38) is fixedly placed inside the transmission rubber sleeve (36). The transmission support rubber (38) is an annular structure. The inner and outer annular surfaces of the transmission support rubber (38) are connected to the two side surfaces of the hollow portion of the transmission rubber sleeve (36). A plurality of transmission support rubbers (38) are provided. The plurality of transmission support rubbers (38) are arranged equidistantly along the axial direction of the deformation transmission wheel (35). The height between the deformation transmission wheel (35) and the anti-slip transmission wheel (34) can be appropriately adjusted, so that pipes with large impurities attached to the surface or with different outer wall diameters can be transmitted without excessively squeezing the pipes to cause damage to the pipes. The polishing rubber (40) is designed to be a high temperature resistant material, which can improve the polishing efficiency and quality while reducing maintenance costs; The cross-sectional diameter of the grinding rubber (40) gradually decreases from one end to the middle and remains unchanged from the middle to the other end. The cross-sectional diameter of the grinding cavity (43) is annular. The two ends of the grinding rubber (40) are sleeved on both sides of the grinding cavity (43). A deformation groove (51) is opened in the grinding rubber (40). The grinding spring (48) is fixed on the deformation groove (51). The two ends of the grinding spring (48) are connected to the two side surfaces of the deformation groove (51). The front end with a larger diameter can grind larger impurities on the outer wall and facilitate the pipe to enter the grinding area. The overall diameter can be changed slightly to adapt to pipes with different outer wall diameters, thereby improving the overall utilization rate. The purpose is to improve the grinding fineness, reduce the use cost, and automatically align, so that the machine can be continuously ground to the deformed or slightly different outer wall diameter pipes without stopping.

[0017] It should be noted that the outer wall fine-tuning grinding structure is suitable for the following inner and outer pipe grinding machines.

[0018] The present invention provides a pipe internal and external grinding machine, which is implemented as follows: The present invention provides a pipe internal and external grinding machine, which includes a supporting component, a transmission component, an inner wall grinding component and an outer wall grinding component. The invention is characterized in that the transmission component is arranged on the support component, the inner wall grinding component is arranged on the support component, and the outer wall grinding component is arranged on the support component. The transmission component is used to position the pipe to be ground in the up-down and forward-backward directions while driving the pipe to move left and right, and then the grinding component is used to grind the inner wall and the outer wall of the pipe. The support assembly is composed of a polishing box (1), a placement plate (2), a connecting plate (3), a sliding groove (4), a first limiting groove (9) and a second limiting groove (10). The placement plate (2) is fixedly placed on one end of the grinding box (1). Preferably, the polishing box (1) is arranged in a U-shaped configuration. A first limiting groove (9) is provided in the middle of the placement plate (2), and the cross section of the first limiting groove (9) is a cross-shaped structure. The connecting plate (3) is fixedly placed on the polishing box (1), the connecting plate (3) and the placement plate (2) are placed in parallel, a second limiting groove (10) is opened in the middle of the connecting plate (3), and the cross section of the second limiting groove (10) is a cross-shaped structure. Preferably, the central axis of the first limiting groove (9) and the central axis of the second limiting groove (10) are the same. The sliding groove (4) is placed inside the grinding box (1). Preferably, there are two sliding grooves (4), and the two sliding grooves (4) are symmetrical with respect to the polishing box (1). Preferably, the sliding groove (4) is in an equilateral trapezoidal structure and the shorter side is located inside the polishing box (1). The transmission assembly is composed of a transmission motor (7), a main transmission shaft (18), a secondary transmission shaft (17) and a transmission wheel (20). Two conveying motors (7) are placed on the grinding box (1). Preferably, the conveying motor (7) is in an intermittent working state, and the temporary load rate of the conveying motor (7) is 15%. Preferably, the two conveying motors (7) rotate in the same direction and at the same speed at the same time. The main transmission shafts (18) are provided with two, and the two main transmission shafts (18) correspond to the two transmission motors (7) in a one-to-one manner. A transmission wheel (20) is disposed on the main transmission shaft (18), and the transmission wheel (20) and the main transmission shaft (18) are coaxially arranged. One end of the main transmission shaft (18) is connected to one side of the grinding box (1) via a bearing, and the other end of the main transmission shaft (18) is connected to the motor shaft of the corresponding transmission motor (7) and a support bearing is disposed between the main transmission shaft (18) and the grinding box (1). Both ends of the auxiliary transmission shaft (17) are connected to the inner side of the grinding box (1) through bearings. Preferably, a plurality of auxiliary transmission shafts (17) are provided, and the plurality of auxiliary transmission shafts (17) are arranged equidistantly along the length direction of the polishing box (1). The secondary transmission shaft (17) is located above the primary transmission shaft (18). A transmission wheel (20) is disposed on the auxiliary transmission shaft (17), and the transmission wheel (20) and the auxiliary transmission shaft (17) are coaxially arranged. Preferably, there is a passage for accommodating the passage of the pipe between the conveying wheel (20) disposed on the main conveying shaft (18) and the conveying wheel (20) disposed on the auxiliary conveying shaft (17). Preferably, the inner diameter of the transmission wheel (20) increases gradually in an arc shape from the middle to both ends, and an anti-skid pad is arranged on the surface of the transmission wheel (20), wherein the anti-skid pad has two layers, the inner layer connected to the transmission wheel (20) is a sponge pad, and the outer layer in contact with the pipe is a rubber pad; The inner wall grinding assembly is composed of an inner wall grinding motor (8), a connecting shaft (14), a first limiting ring (16), a second limiting ring (15), a grinding head (12) and grinding particles (13). The inner wall grinding motor (8) is placed on the placement plate (2). One end of the connecting shaft (14) is placed on the motor shaft of the inner wall grinding motor (8), and the connecting shaft (14) passes through the connecting plate (3) and is coaxially placed with the second limiting groove (10). The connecting shaft (14) is provided with a first limiting ring (16) and a second limiting ring (15); the connecting shaft (14) and the first limiting ring (16) and the second limiting ring (15) are coaxially arranged; the first limiting ring (16) is rotatably placed in the first limiting groove (9); the second limiting ring (15) is rotatably placed in the second limiting groove (10); the other end of the connecting shaft (14) is provided with a threaded hole, and the direction of the thread is the same as the direction of rotation of the motor when it is working. Preferably, the grinding head (12) is threadedly connected to the connecting shaft (14). The cross-sectional diameter of the middle section of the grinding head (12) is greater than the width of the two ends, and the cross-sectional diameters of the two ends of the grinding head (12) gradually decrease. The grinding head (12) is provided with a reverse thread (28) and rotates in the opposite direction to the inner wall grinding motor (8) when in operation. The grinding particles (13) are placed on the grinding head (12). Preferably, the grinding particles (13) include multiple groups, the multiple groups of grinding particles (13) are arranged equidistantly along the circumference of the grinding head (12), and a group of the grinding particles (13) includes multiple grinding particles (13), and the multiple grinding particles (13) in the same group are arranged equidistantly along the axial direction of the grinding head (12). The outer wall grinding assembly is composed of a sliding bar (5), a support plate (6), a cavity (21), a hole (22), a protective plate (19), an outer wall grinding motor (11), a main gear (23), a grinding bearing (24), a grinding gear (25), a fixing ring (27) and outer grinding particles (26). Sliding bars (5) are fixedly mounted on both sides of the support plate (6). The outer contour of the sliding bar (5) is the same as that of the sliding groove (4), and the sliding bar (5) is slidably connected and placed in the sliding groove (4). Preferably, the cavity (21) is arranged in an 8-shape, and the cavity (21) does not penetrate the support plate (6). The hole (22) is arranged through the support plate (6) and is aligned with the central axis of the upper circular ring of the cavity (21). The protective plate (19) is fixedly placed on the support plate (6) and is placed vertically to the support plate (6). The outer wall grinding motor (11) is placed on the support plate (6) and below the protective plate (19). One end of the main gear (23) is connected to the support plate (6) via a bearing, and the other end of the main gear (23) is connected to the motor shaft of the outer wall grinding motor (11) and a support bearing is disposed between the main gear (23) and the support plate (6). The grinding gear (25) is rotatably disposed in the cavity (21) and meshes with the main gear (23). The grinding gear (25) has a circular groove in the middle, and the external grinding particles (26) are placed in the circular groove. The grinding gear (25) is provided with fixing rings (27) on both sides thereof. The inner ring of the grinding bearing (24) is connected to the fixing ring (27), and the outer ring of the grinding bearing (24) is fixedly connected to the hole wall of the hole (22). The external grinding particles (26) include multiple groups, and the multiple groups of external grinding particles (26) are arranged at equal distances along the circumferential direction of the inner annular surface of the grinding gear (25); a group of external grinding particles (26) includes multiple particles, and the multiple external grinding particles (26) in the same group are arranged at equal distances along the axial direction of the grinding gear (25); When in use, the pipe is placed in the middle of the conveying wheel (20), and the conveying motor (7) drives the conveying shaft to rotate and squeeze the pipe through the conveying wheel (20) to convey the pipe. The conveying motor (7) is in an intermittent working state. When one side of the pipe contacts the grinding head (12), it stops working. The inner wall grinding motor (8) drives the grinding head (12) to rotate, thereby grinding the inner wall of the pipe. At the same time, the outer wall grinding motor (11) drives the slave gear (52) to rotate, so that the outer grinding particles (26) grind the outer surface of the pipe. The two work simultaneously and in opposite directions, thereby preventing the pipe from rotating during the working process. After grinding is completed, the conveying motor (7) continues to work, driving the pipe to move a certain distance, and the grinding motor continues to work, and then the conveying and grinding work are repeated alternately until the entire pipe is polished once. The conveying motor (7) works in the reverse direction, so that the pipe can be polished a second time until the pipe is completely away from the support plate (6); Example 2

[0019] The difference between this embodiment and embodiment 1 is that the grinding particles (13) are replaced by grinding rings (29), and the grinding rings (29) are wound around the annular side surface of the grinding head (12) in a threaded shape. When in use, the grinding ring (29) can grind the inner wall of the pipe within a certain length range, and the cross-section of the grinding ring (29) is a semicircular structure, which is more stable and can avoid the grinding particles (13) from collapsing during the grinding process, thereby helping to improve the uniformity and smoothness of the inner wall of the pipe; Example 3

[0020] The difference between this embodiment and embodiment 1 is that an oblique grinding head (30) is fixedly arranged on one side of the grinding head (12), the bottom surface of one side of the oblique grinding head (30) is the same as the side surface of the grinding head (12), the cross-sectional diameter of the side surface of the oblique grinding head (30) gradually decreases, the first grinding column (31) is provided in a plurality of groups, the plurality of groups of first grinding columns (31) are arranged equidistantly along the axial direction of the oblique grinding head (30), a group of the first grinding columns (31) has a plurality of first grinding columns (31), and the plurality of first grinding columns (31) in the same group are arranged at equal angles along the circumferential direction of the side surface of the oblique grinding head (30), the second grinding column (33) is provided in a plurality of groups, the plurality of groups of second grinding columns (33) are arranged equidistantly along the axial direction of the grinding head (12), a group of the second grinding columns (33) has a plurality of second grinding columns (33), and the plurality of second grinding columns (33) in the same group are arranged equidistantly along the circumferential direction of the grinding head ( 12) The sides are arranged at equal distances in the circumferential direction. Fixed blocks (32) are fixedly arranged on both sides of the first grinding column (31). The fixed blocks (32) are in a triangular block structure, and the triangular plane and the oblique grinding head (30) table are arranged in parallel. Fixed blocks (32) are fixedly arranged on both sides of the second grinding column (33). The fixed blocks (32) are in a triangular block structure, and the triangular plane and the oblique grinding head (30) table are arranged in parallel. When in use, when the inner wall of the pipe has a large area to be ground, the annular grinding head (12) cross section cannot enter. The smaller cross-sectional portion of the front side of the oblique grinding head (30) can enter the interior of the pipe, thereby gradually expanding the internal passable range. The fixed blocks (32) are in a stable triangular structure and can fix the grinding particles (13) to reduce the risk of breakage, and can effectively grind large pieces of foreign matter inside. The sliding groove (4) cooperates with the sliding bar (5) to limit the support plate (6), which can facilitate the removal of the support plate (6) and the replacement of the grinding head (12) and the grinding gear (25); The two conveying motors (7) have the same rotation speed and direction during the same working time, thereby avoiding squeezing or pulling the pipe and causing unnecessary damage to the pipe; The conveying motor (7) is in an intermittent working state and does not convey during the grinding process, which can effectively avoid the risk of the pipe slipping or bending; The grinding gear (25) and the grinding head (12) rotate at the same speed and in opposite directions, thereby improving the grinding efficiency and preventing the pipe from rotating on the conveying wheel (20).

[0021] The inner diameter of the transmission wheel (20) increases gradually from the middle to the two ends in an arc shape, and an anti-skid pad is arranged on the surface of the transmission wheel (20). The anti-skid pad has two layers, the inner layer connected to the transmission wheel (20) is a sponge pad, and the outer layer in contact with the pipe is a rubber pad. The inner diameter of the transmission wheel (20) increases gradually from the middle to the two ends in an arc shape, which can better fit the curvature of the pipe and improve the stability during transmission. The inner sponge pad can buffer the impact of the pipe, and the outer rubber pad has good friction and can prevent the pipe from slipping during transmission. The cross-sectional diameter of the middle section of the grinding head (12) is larger than the width of the two ends. The cross-sectional diameters of the two ends of the grinding head (12) are designed to gradually decrease. The cross-sectional diameters of the two ends of the grinding head (12) gradually decrease to form a tapered structure, which can be easily inserted into the interior of the pipe and aligned with the center of the pipe. The cross-sectional diameter of the middle section of the grinding head (12) is larger than the width of the two ends, and can be stuck in the interior of the pipe for positioning, thereby ensuring that the grinding head (12) remains stable inside the pipe, thereby improving the grinding effect; The purpose of being able to drive the pipe to move by the conveying wheel (20) and simultaneously grinding the inner and outer walls of the pipe by the grinding brush is achieved.

[0022] It should be noted that, unless otherwise clearly specified and limited, the terms "placed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection method such as a folding connection, a rivet connection, a pin connection, a bonding connection and a welding connection, or a detachable connection method such as a threaded connection, a snap connection and a hinge connection, or an integral connection, or an electrical connection, or a direct connection, or an indirect connection through an intermediate medium, or the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] It should be further pointed out that, when describing the above specific embodiment, for the sake of simplicity and clarity, only the differences between the above specific embodiment and other embodiments are described, but those skilled in the art should know that the above specific embodiment itself is also an independent technical solution.

Claims

1. A fine-tuning grinding structure for the outer wall of a grinding machine, comprising a deformation transmission component and a deformation outer wall grinding component, characterized in that: The deformation transmission component is arranged on the polishing box, and the deformation outer wall polishing component is arranged on the polishing box. The deformation transmission component is used to continuously transmit the pipe whose outer wall is deformed or whose outer wall size has a slight difference, and then the deformation outer wall polishing component is used to polish the pipe whose outer wall is deformed or whose outer wall size has a slight difference twice. The deformation transmission component is composed of an anti-skid transmission wheel, a deformation transmission wheel, a transmission motor, a transmission rubber sleeve, a positioning groove, a transmission support rubber and an anti-skid rubber ring. The transmission motor is placed on the outer side of the polishing box. The number of the transmission motors is greater than 1. There are multiple anti-skid transmission wheels. There are two ways to connect the multiple anti-skid transmission wheels. One is that one end of the anti-skid transmission wheel is connected through a bearing and a polishing The inner side of the grinding box is connected, the other end of the anti-skid transmission wheel is connected to the motor shaft of the transmission motor and a bearing is placed between the anti-skid transmission wheel and the grinding box. Another method is that the two ends of the anti-skid transmission wheel are connected to the inner side of the grinding box through bearings, and the anti-skid rubber ring is placed on the anti-skid transmission wheel. The two ends of the deformation transmission wheel are connected to the inner side of the grinding box through bearings. A positioning groove is opened on the side of the deformation transmission wheel, and the transmission rubber sleeve is placed on the positioning groove. The transmission support rubber is fixed inside the transmission rubber sleeve. The deformation outer wall grinding component consists of a sliding groove, a sliding bar, a support plate, an outer wall grinding motor, a grinding rubber, a grinding bead, a first placement hole, a grinding cavity, a first bearing, a placement cavity, a second bearing, a grinding groove, a grinding spring, and a second placement The present invention relates to a method for producing a plurality of transmission gears, wherein the plurality of transmission gears are provided with a plurality of transmission gears, and the plurality of transmission gears are provided with a plurality of transmission gears. The plurality of transmission gears are provided with a plurality of transmission gears, and the plurality of transmission gears are provided with a plurality of transmission gears. The plurality of transmission gears are provided with a plurality of transmission gears, and the plurality of transmission gears are provided with a plurality of transmission gears. The outer ring surface of the bearing is fixed on the side of the first placement hole, the outer ring surface of the second bearing is fixed on the side of the second placement hole, one side of the grinding cavity is fixedly connected to the inner ring surface of the first bearing, and the other side of the grinding cavity is fixedly connected to the inner ring surface of the second bearing. The slave gear sleeve is placed on the outer ring surface of the grinding cavity, the slave gear and the transmission gear are meshed, the grinding rubber is bonded to the inner wall of the grinding cavity, a deformation groove is opened in the grinding rubber, a grinding spring is fixed in the deformation groove, the two ends of the grinding spring are connected to the two side surfaces of the deformation groove, the grinding support rubber is fixed on the inner side of the deformation groove, the longitudinal section profile of the grinding support rubber is the same as the longitudinal section profile of the deformation groove, a grinding groove is arranged on the inner side of the grinding rubber, and a grinding bead card is arranged on the inner side of the grinding groove.

2. The outer wall fine-tuning grinding structure of a grinding machine according to claim 1, characterized in that Both ends of the polishing rubber are provided with fixing screws, the fixing screws pass through the polishing rubber thread connection and are placed on the polishing cavity, and the fixing screws are arranged at equal distances along the circumference of the polishing rubber.

3. The outer wall fine-tuning grinding structure of a grinding machine according to claim 1, characterized in that Super-hard grinding particles are arranged on the inner side of the grinding rubber. The super-hard grinding particles are arranged on the inner annular surface of the grinding rubber whose cross-sectional diameter gradually decreases from one end to the middle. The fine grinding particles are arranged on the inner annular surface of the grinding rubber whose cross-sectional diameter remains unchanged from the middle to the other end. The hardness of the super-hard grinding particles is greater than that of the fine grinding particles.

4. The outer wall fine-tuning grinding structure of a grinding machine according to claim 1, characterized in that The transmission motors, which are greater than 1, are placed on the same straight line, the multiple anti-slip transmission wheels are on the same straight line, the anti-slip transmission wheels with two different connection methods are placed alternately, the diameter of the anti-slip transmission wheel gradually increases in an arc shape from the middle to both ends, cylinders with smaller diameters are provided at both ends of the anti-slip transmission wheel, the cross-section of the anti-slip rubber ring is in a circular ring shape, and the diameter of the cross-section of the anti-slip rubber ring gradually increases in an arc shape from the middle to both ends.

5. The outer wall fine-tuning grinding structure of a grinding machine according to claim 1, characterized in that There are multiple deformation transmission wheels, the number of the deformation transmission wheels and the anti-skid transmission wheels is the same, the multiple deformation transmission wheels are in a straight line, the deformation transmission wheels and the anti-skid transmission wheels are arranged above the anti-skid transmission wheel in a one-to-one correspondence, the diameter of the deformation transmission wheel gradually increases in an arc shape from the middle to both ends, and cylinders with smaller diameters are arranged at both ends of the deformation transmission wheel.

6. The outer wall fine-tuning grinding structure of a grinding machine according to claim 1, characterized in that The cross-sectional diameter of the positioning groove increases gradually in an arc shape from the middle to both ends, the cross-sectional diameter of the transmission rubber sleeve increases gradually in an arc shape from the middle to both ends, the interior of the transmission rubber sleeve is a hollow structure, the transmission support rubber is a circular ring structure, the inner and outer ring surfaces of the transmission support rubber are connected to the two side surfaces of the hollow part of the transmission rubber sleeve, and a plurality of the transmission support rubbers are provided, and the plurality of transmission support rubbers are arranged equidistantly along the axial direction of the deformation transmission wheel.

7. The outer wall fine-tuning grinding structure of a grinding machine according to claim 1, characterized in that The first placement hole is a cylindrical structure, the second placement hole is a cylindrical structure, the central axes of the first placement hole and the second placement hole are the same, the diameter of the second placement hole is larger than the diameter of the first placement hole, and the diameter of the inner ring surface of the second bearing is larger than the diameter of the inner ring surface of the first bearing.

8. The outer wall fine-tuning grinding structure of a grinding machine according to claim 1, characterized in that The cross-sectional diameter of the grinding cavity gradually decreases from one side to the middle, and remains unchanged from the middle to the other side. The cross-sectional diameter of the grinding cavity is a circular ring structure. The grinding rubber is made of high temperature resistant material. The cross-sectional diameter of the grinding rubber gradually decreases from one end to the middle, and remains unchanged from the middle to the other end. The cross-sectional diameter of the grinding cavity is a circular ring structure. The two ends of the grinding rubber are sleeved on both sides of the grinding cavity. The cross-sectional diameter of the deformation groove gradually decreases from one end to the middle, and remains unchanged from the middle to the other end. The cross-sectional diameter of the deformation groove is a circular ring structure.

9. The outer wall fine-tuning grinding structure of a grinding machine according to claim 1, characterized in that The polishing springs are provided in multiple groups, and the multiple groups of polishing springs are arranged at equal distances along the circumferential direction of the deformation groove. Each group of the polishing springs is provided with multiple polishing springs, and the multiple polishing springs are arranged at equal distances along the side contour line direction of the deformation groove. The polishing support rubbers are provided in multiple groups, and the number of the polishing support rubbers is the same as the number of polishing spring groups. The polishing support rubbers are arranged at equal distances along the circumferential direction of the deformation groove, and the polishing support rubbers and each group of polishing springs are arranged alternately. The polishing grooves are evenly distributed on the inner side of the polishing rubber. The cross-sectional diameter of the polishing groove increases in an arc shape from one end to one-third of the inner ring surface of the polishing rubber, and gradually decreases in an arc shape from one-third to the other end. The other end of the polishing groove is closed in an arc shape. The polishing beads are spherical structures. There are multiple polishing beads. The number of the polishing beads and the polishing grooves is the same, and the polishing beads and the polishing grooves correspond one to one.

10. The outer wall fine-tuning grinding structure of a grinding machine according to claim 1, characterized in that The pipe internal and external grinding machine comprises a supporting assembly, a conveying assembly, an inner wall grinding assembly and an outer wall grinding assembly, wherein the conveying assembly is arranged on the supporting assembly, the inner wall grinding assembly is arranged on the supporting assembly, and the outer wall grinding assembly is arranged on the supporting assembly, and the conveying assembly is used to position the pipe to be ground in the up-down and forward-backward directions while driving the pipe to move left and right, and then the inner wall and the outer wall of the pipe are ground by the grinding assembly, and the supporting assembly is composed of a grinding box, a placing plate, a connecting plate, a sliding groove, a first limiting groove and a second limiting groove, and the placing plate is fixedly placed at one end of the grinding box, and the grinding box is in the shape of a The placing plate is provided with a first limiting groove in the middle, and the cross section of the first limiting groove is a cross-shaped structure. The connecting plate is fixedly placed on the polishing box, and the connecting plate and the placing plate are placed in parallel. The connecting plate is provided with a second limiting groove in the middle, and the cross section of the second limiting groove is a cross-shaped structure. The central axes of the first limiting groove and the second limiting groove are the same. The sliding groove is placed inside the polishing box. There are two sliding grooves, and the two sliding grooves are symmetrical about the polishing box. The sliding groove is an equilateral trapezoidal structure and the shorter side is placed inside the polishing box. The transmission assembly consists of a transmission motor, a main transmission shaft, a secondary transmission shaft and The transmission motor is composed of a transmission wheel, two transmission motors are placed on the polishing box, the transmission motor is in an intermittent working state, the temporary load rate of the transmission motor is 15%, the two transmission motors rotate in the same direction and speed at the same time, the main transmission shaft is provided with two, the two main transmission shafts correspond to the two transmission motors one by one, a transmission wheel is arranged on the main transmission shaft, the transmission wheel and the main transmission shaft are coaxially arranged, one end of the main transmission shaft is connected to one side of the polishing box through a bearing, the other end of the main transmission shaft is connected to the motor shaft of the corresponding transmission motor and a support bearing is arranged between the main transmission shaft and the polishing box, and both ends of the auxiliary transmission shaft They are all connected to the inner side of the grinding box through bearings, and there are multiple auxiliary transmission shafts, which are equidistantly arranged along the length direction of the grinding box. The auxiliary transmission shaft is located above the main transmission shaft, and a transmission wheel is arranged on the auxiliary transmission shaft. The transmission wheel and the auxiliary transmission shaft are coaxially arranged, and there is a channel for accommodating the passage of pipes between the transmission wheel arranged on the main transmission shaft and the transmission wheel arranged on the auxiliary transmission shaft. The inner diameter of the transmission wheel gradually increases in an arc shape from the middle to the two ends, and an anti-skid pad is arranged on the surface of the transmission wheel. The anti-skid pad has two layers, the inner layer connected to the transmission wheel is a sponge pad, and the outer layer in contact with the pipe is a rubber pad;The inner wall grinding assembly consists of an inner wall grinding motor, a connecting shaft, a first limiting ring, a second limiting ring, a grinding head and grinding particles. The inner wall grinding motor is placed on a placement plate, one end of the connecting shaft is placed on the motor shaft of the inner wall grinding motor, the connecting shaft passes through the connecting plate and is coaxially placed with the second limiting groove, a first limiting ring and a second limiting ring are provided on the connecting shaft, the connecting shaft and the first limiting ring and the second limiting ring are coaxially arranged, the first limiting ring is rotatably placed in the first limiting groove, the second limiting ring is rotatably placed in the second limiting groove, the other end of the connecting shaft is provided with a threaded hole and a screw thread is provided. The thread direction is the same as the rotation direction of the motor when working, the grinding head is threadedly connected and placed on the connecting shaft, the cross-sectional diameter of the middle section of the grinding head is greater than the width of the two ends, and the cross-sectional diameters of the two ends of the grinding head gradually decrease. The grinding head is provided with a reverse thread and the rotation direction is opposite to that of the inner wall grinding motor when working. The grinding particles are placed on the grinding head, and the grinding particles have multiple groups, and the multiple groups of grinding particles are arranged equidistantly along the circumference of the grinding head. A group of the grinding particles has multiple grinding particles, and the multiple grinding particles in the same group are arranged equidistantly along the axial direction of the grinding head. The outer wall grinding component consists of a sliding bar, a support plate, a cavity, a hole, a protective The support plate is composed of a plate, an outer wall grinding motor, a main gear, a grinding bearing, a grinding gear, a fixed ring and external grinding particles. Sliding bars are fixedly arranged on both sides of the support plate. The outer contour of the sliding bar is the same as the sliding groove. The sliding bar is slidably connected and placed in the sliding groove. The cavity is arranged in an 8-shape. The cavity does not penetrate the support plate. The hole penetrates the support plate and is the same as the central axis of the circular ring on the upper part of the cavity. The protective plate is fixed on the support plate and placed vertically with the support plate. The outer wall grinding motor is placed on the support plate and placed below the protective plate. One end of the main gear is connected to the support plate through a bearing. The other end of the main gear is connected to the outer wall The motor shaft of the grinding motor is connected and a support bearing is arranged between the motor shaft and the support plate. The grinding gear is rotatably arranged in the cavity and meshes with the main gear. A circular through groove is opened in the middle of the grinding gear, and the external grinding particles are arranged in the circular through groove. Fixed rings are arranged on both sides of the grinding gear respectively. The inner ring of the grinding bearing is connected to the fixed ring. The outer ring of the grinding bearing is fixedly connected to the hole wall of the hole. There are multiple groups of external grinding particles, and the multiple groups of external grinding particles are arranged at equal distances along the circumference of the inner ring surface of the grinding gear. There are multiple external grinding particles in one group, and the multiple external grinding particles in the same group are arranged at equal distances along the axial direction of the grinding gear. ;

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