Grinding machine synchronous movement dust collection structure and pipe interior and exterior grinding machine

Abstract

The invention discloses a synchronous moving dust collection structure of a grinding machine and a pipe interior and exterior grinding machine, and discloses a dust collection structure which fixes the position of a dust collection assembly through a supporting assembly, drives the dust collection assembly to move at the same time, and sucks dust generated during grinding through the dust collection assembly. The pipe polishing device is characterized in that the pipe polishing device comprises a supporting assembly and a dust collection assembly, the supporting assembly is arranged on a polishing box, the dust collection assembly is arranged on the supporting assembly, the supporting assembly can be used for fixing the dust collection assembly and driving the dust collection assembly to move at the same time, and then the dust collection assembly can be used for sucking dust generated during pipe polishing; and the supporting assembly is composed of four clamping plates, fixing bolts, a supporting frame, a dust collection motor, a threaded rod, a sliding rod and a sliding block, the clamping plates are arranged on the grinding box side plate in a pluggable connection mode, the clamping plates are arranged in a concave shape, the inner side faces of the clamping plates make contact with the grinding box side plate, and the number of the clamping plates is four.

Description

Technical Field

[0001] The invention discloses a synchronously movable dust suction structure for a grinder and an internal and external grinder for pipes, and relates to a dust suction structure installed on the internal and external grinder for pipes, belonging to the technical field of pipe processing equipment, and particularly to a dust suction structure capable of reducing grinding dust and harm to human body. Background Art

[0002] After mechanical processing, there may be a hardened layer on the surface of the pipe. This hardened layer is brittle and has residual stress. It is easy to crack during the early use of the pipe. It is also very easy to oxidize, rust or accumulate 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 alone. 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 another Chinese invention patent application entitled "A pipe internal and external grinding machine", which uses a conveyor wheel to drive the pipe to move, and a grinding brush to grind the inner and outer walls of the pipe at the same time. However, the above device is prone to generate a lot of dust during the pipe grinding process, which affects the real-time observation of the grinding effect, and is also prone to cause harm to the health of nearby workers. Summary of the invention

[0006] In order to improve the above situation, the present invention provides a synchronously moving dust suction structure for a grinder and an internal and external grinder for pipes, which provides a dust suction structure that fixes the position of a dust suction component through a support component and drives the dust suction component to move at the same time, and absorbs dust generated during grinding through the dust suction component.

[0007] The invention discloses a synchronously movable dust suction structure for a grinder and a pipe internal and external grinder as follows: The invention discloses a synchronously movable dust suction structure for a grinder as follows: The synchronously movable dust suction structure for a grinder includes a supporting component and a dust suction component. The utility model is characterized in that the supporting component is arranged on the grinding box, the dust collecting component is arranged on the supporting component, the supporting component can be used to fix the position of the dust collecting component and drive the dust collecting component to move at the same time, and then the dust collecting component can be used to absorb the dust generated when the pipe is ground. The support assembly is composed of a clamping plate, a fixing bolt, a support frame, a dust suction motor, a threaded rod, a sliding rod and a sliding block. The plug-in connection of the splint is placed on the side panel of the grinding box. Preferably, the clamping plate is arranged in a concave shape, the inner side of the clamping plate contacts the side plate of the grinding box, four clamping plates are provided, and the four clamping plates are arranged in groups of two, and the two clamping plates in each group are clamped on the same side plate of the grinding box, and the two clamping plates in each group are symmetrical about the support plate, and the two groups of clamping plates are symmetrically arranged about the grinding box. The fixing bolt passes through one side of the splint and the sanding box, and is threadedly connected to the other side of the splint. Preferably, there are four fixing bolts, and the clamping plates correspond to the fixing bolts one by one. The two ends of the support frame are fixedly connected to the splint. Preferably, there are two support frames, the two support frames are symmetrically arranged about the support plate, the support frame is U-shaped, each support frame corresponds to two clamping plates, and the two side plates of the support frame are arranged at right angles to the cross plate. The dust suction motor is fixed on one of the sides of the support frame, and the central axis of the dust suction motor is on the middle section of the support frame. One end of the threaded rod is connected to the dust collector motor and a support bearing is placed between the threaded rod and a support frame. The other end of the threaded rod is rotatably connected to another support frame through a bearing. Preferably, the threaded rod is placed in the middle of the support frame. The two ends of the slide rod are respectively fixed on the sides of the two support frames, and close to the middle position, and the slide rod is arranged parallel to the threaded rod. The sliding block is provided with two holes, the sliding block is slidably connected to the sliding rod through one hole, the other hole of the sliding block is provided with a thread, and the sliding block is slidably placed on the threaded rod through the internal thread on the other hole of the sliding block cooperating with the external thread on the threaded rod. The dust collection assembly is composed of a dust collection fan, a telescopic hose, a wind nozzle, a dust collection tube, a placement slot, a placement block, a collection box, a dust inlet and a connection port. The dust suction fan is fixed at the bottom of the sliding block. One end of the telescopic hose is connected to the suction port of the dust collector fan. The threaded connection of the nozzle is placed on the other end of the telescopic hose. Preferably, the cross section of one end of the nozzle connected to the telescopic hose is annular, and the other end of the nozzle is an arc-shaped strip. One end of the dust suction pipe is connected to the dust suction fan outlet. There is a placement slot on the top surface of the support frame bottom plate. Preferably, the placement slot is placed at one quarter of the bottom plate of the support frame. Placement blocks are fixed at both ends of the collection box, and the collection box is pluggably placed on the support frame through the placement blocks and the placement slots. Preferably, the width of the collection box remains constant from the top to one-half, and gradually increases from one-half to the bottom. There is a dust inlet on one side of the collection box. One end of the connection port is threadedly connected to the dust inlet, and the other end of the connection port is rotatably connected to the other end of the dust suction pipe. Preferably, the dust suction tube spirally extends from one end to the other end. Furthermore, the collection box is equipped with a dust bag, which is placed in the collection box. The dust bag is provided with a notch, which is fixed on the outer ring surface of the dust inlet. The dust bag is made of microfiber cloth. Furthermore, a positioning screw is disposed on the side plate of the clamping plate, a positioning clamping plate is disposed at one end of the positioning screw, the positioning screw passes through one side plate of the clamping plate and is threadedly connected to one side plate of the clamping plate, the positioning clamping plate is rotatably connected to the positioning screw and is disposed between the two side plates of the clamping plate; 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 is placed parallel to the placement plate, 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 axis of the first limiting groove is the same as that of the second limiting groove. 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 inner wall grinding motor when working. The grinding head is provided with a reverse thread and rotates in the opposite direction to the inner wall grinding motor when 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 larger than the diameter of the two ends, and the cross-sectional diameters of the two ends of the grinding head gradually decrease. 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 consistent with the central axis of the upper 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. Preferably, the main gear is located in the lower ring of the cavity. 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. The grinding gear and the grinding head rotate at the same speed and in opposite directions; 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, the cross-sectional diameter of the side surface of the oblique grinding head gradually decreases, a first grinding column is arranged on the side surface of the oblique grinding head, and a second grinding column is arranged on the side surface of the grinding head. Beneficial Effects

[0008] 1. Absorb the dust generated during the grinding process to reduce harm to the human body.

[0009] 2. The wind force is more concentrated when vacuuming, which improves work efficiency.

[0010] 3. The dust collecting part can be disassembled for easy cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] 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 5This is a three-dimensional structural diagram of a pipe internal and external grinding machine of the present invention, which only shows the structure of the grinding gear; 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 diagram of a synchronous moving dust suction structure of a grinder of the present invention; Fig. 9 It is a structural schematic diagram of a synchronous moving dust suction structure of a grinder according to the present invention; Fig.10 It is a structural schematic diagram of a synchronous moving dust suction structure of a grinder according to the present invention; Fig.11 It is a structural schematic diagram of Embodiment 2 of a synchronous moving dust suction structure for a grinder according to the present invention; Fig.12 This is a schematic structural diagram of Example 3 of a synchronous moving dust suction structure for a grinder according to the present invention, in which only the structure of the clamping plate is shown. Attached photos

[0012] 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), and outer wall grinding particles ( 26), fixing ring (27), reverse thread (28), grinding ring (29), oblique grinding head (30), first grinding column (31), fixing block (32), second grinding column (33), sliding rod (34), placement groove (35), collection box (36), dust suction pipe (37), placement block (38), support frame (39), clamping plate (40), fixing bolt (41), dust suction motor (42), dust suction fan (43), threaded rod (44), telescopic hose (45), air nozzle (46), dust inlet (47), connecting port (48), sliding block (49), dust bag (50), positioning clamping plate (51), positioning screw (52) DETAILED DESCRIPTION Example 1

[0013] The invention discloses a synchronously movable dust collection structure for a grinding machine, comprising a supporting component and a dust collection component. The invention is characterized in that a support component is arranged on the polishing box (1), a dust collecting component is arranged on the support component, the support component can be used to fix the position of the dust collecting component and drive the dust collecting component to move at the same time, and then the dust collecting component can be used to absorb dust generated when the pipe is polished. The support assembly is composed of a clamping plate (40), a fixing bolt (41), a support frame (39), a dust suction motor (42), a threaded rod (44), a sliding rod (34) and a sliding block (49). The clamping plate (40) is plug-in-connected and placed on the side plate of the polishing box (1). Preferably, the clamping plate (40) is arranged in a concave shape, the inner side surface of the clamping plate (40) contacts the side plate of the polishing box (1), four clamping plates (40) are provided, and the four clamping plates (40) are arranged in groups of two, and the two clamping plates (40) in each group are clamped on the same side plate of the polishing box (1), and the two clamping plates (40) in each group are symmetrical with respect to the support plate (6), and the two groups of clamping plates (40) are symmetrically arranged with respect to the polishing box (1). The fixing bolt (41) passes through one side of the clamping plate (40) and the grinding box (1), and is threadedly connected to the other side of the clamping plate (40). Preferably, four fixing bolts (41) are provided, and the clamping plates (40) correspond one to one to the fixing bolts (41). The two ends of the support frame (39) are fixedly connected to the clamping plate (40). Preferably, two support frames (39) are provided, and the two support frames (39) are symmetrically arranged with respect to the support plate (6). The support frames (39) are of U-shaped design, and each of the support frames (39) corresponds to two clamping plates (40). The two side plates of the support frames (39) are arranged at right angles to the horizontal plate. The dust collection motor (42) is fixedly placed on the side of one of the support frames (39), and the central axis of the dust collection motor (42) is on the middle section of the support frame (39). One end of the threaded rod (44) is connected to the dust collection motor (42) and a support bearing is disposed between the threaded rod and a support frame (39). The other end of the threaded rod (44) is rotatably connected to another support frame (39) via a bearing. Preferably, the threaded rod (44) is placed in the middle of the support frame (39). The two ends of the slide bar (34) are respectively fixed on the sides of the two support frames (39) and close to the middle position. The slide bar (34) and the threaded rod (44) are arranged in parallel. The sliding block (49) is provided with two holes (22), and the sliding block (49) is slidably connected to the sliding rod (34) through one hole (22). The other hole (22) of the sliding block (49) is provided with a thread, and the sliding block (49) is slidably placed on the threaded rod (44) through the internal thread on the other hole (22) of the sliding block (49) cooperating with the external thread on the threaded rod (44). The dust suction assembly is composed of a dust suction fan (43), a telescopic hose (45), an air nozzle (46), a dust suction pipe (37), a placement slot (35), a placement block (38), a collection box (36), a dust inlet (47), and a connection port (48). The dust suction fan (43) is fixedly placed at the bottom of the sliding block (49). One end of the telescopic hose (45) is connected to the suction port of the dust suction fan (43). The air nozzle (46) is threadedly connected to the other end of the telescopic hose (45). Preferably, the cross section of one end of the air nozzle (46) connected to the telescopic hose (45) is in the shape of a circular ring, and the other end of the air nozzle (46) is in the shape of an arc-shaped strip. One end of the dust suction pipe (37) is connected to the discharge port of the dust suction fan (43). A placement groove (35) is provided on the top surface of the bottom plate of the support frame (39). Preferably, the placement groove (35) is placed at one quarter of the bottom plate of the support frame (39). Placement blocks (38) are fixedly disposed at both ends of the collection box (36), and the collection box (36) is pluggably placed on the support frame (39) through the placement blocks (38) cooperating with the placement slots (35). Preferably, the width of the collection box (36) remains constant from the top to one-half, and gradually increases from one-half to the bottom. A dust inlet (47) is provided on one side of the collection box (36). One end of the connection port (48) is threadedly connected to the dust inlet (47), and the other end of the connection port (48) is rotatably connected to the other end of the dust suction pipe (37). Preferably, the dust suction pipe (37) spirally extends from one end to the other end. When in use, during the grinding process, the dust suction fan (43) absorbs the dust generated during the grinding process through the telescopic hose (45) to prevent the dust from spreading, and enters the collection box (36) through the dust suction pipe (37). The dust suction motor (42) drives the threaded pipe to rotate, thereby driving the telescopic hose (45) to move, so as to perform large-scale dust suction in the device. When the work is completed, the connection port (48) is rotated to separate the dust suction pipe (37) from the collection box (36), and the collection box (36) is removed to pour out the dust through the dust inlet (47). Example 2

[0014] The difference between this embodiment and the first embodiment is that: the collection box (36) is equipped with a dust bag (50), the dust bag (50) is placed in the collection box (36), the dust bag (50) is provided with a notch, the notch on the dust bag (50) is fixedly placed on the outer annular surface of the dust inlet (47), the dust bag (50) is made of microfiber cloth, and when the polishing work is completed, the dust suction pipe (37) can be separated from the collection box (36) by rotating the connecting port (48), and the dust can be poured out from the dust inlet (47) by removing the collection box (36). After the dust is poured out, the dust bag (50) can be pulled out of the collection box (36), so as to facilitate thorough cleaning of the interior of the collection box (36) and avoid dust accumulation that cannot be poured out; Example 3

[0015] The difference between this embodiment and embodiment 1 is that: a positioning screw (52) is arranged on the side plate of the clamping plate (40), and a positioning clamping plate (51) is arranged at one end of the positioning screw (52), and the positioning screw (52) passes through one side plate of the clamping plate (40) and is threadedly connected to the one side plate of the clamping plate (40), and the positioning clamping plate (51) is rotatably connected to the positioning screw (52) and is placed between the two side plates of the clamping plate (40). When in use, the side plate of the grinding box (1) is placed between the other side plate of the clamping plate (40) and the positioning clamping plate (51), and the positioning screw (52) is rotated until the positioning clamping plate (51) and the side plate of the grinding box (1) are tightly fitted, thereby achieving the function of fixing the grinding box (1) without drilling holes and being able to adjust the position of the entire device at will; The sliding block (49) is provided with two holes (22), and the sliding block (49) is slidably connected to the sliding rod (34) through one hole (22), and the other hole (22) of the sliding block (49) is provided with a thread, and the sliding block (49) is slidably placed on the threaded rod (44) through the internal thread on the other hole (22) of the sliding block (49) cooperating with the external thread on the threaded rod (44), and the dust suction fan (43) is fixedly placed at the bottom of the sliding block (49), and during the grinding process, the dust suction fan (43) can be driven to move through the threaded rod (44), thereby expanding the dust suction range; The air nozzle (46) is designed as a flat nozzle, which can absorb dust more densely, thereby increasing the dust absorption force; The telescopic hose (45) is connected to the suction port of the dust suction fan (43). The telescopic hose (45) is designed to be freely retractable. According to the different pipes to be polished and the different ranges of dust raised, the height of the bottom of the telescopic hose (45) is adjusted to better absorb the dust. The dust box is narrow at the top and wide at the bottom, which can collect more dust and prevent the dust box from being filled up during vacuuming, affecting work efficiency. The purpose of fixing the position of the dust suction component by the support component and driving the dust suction component to move is achieved, and the dust generated when polishing the pipe is sucked by the dust suction component.

[0016] It should be noted that the synchronous moving dust suction structure is applicable to the following internal and external pipe grinding machines: 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) is placed parallel to the placement plate (2), 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 polishing 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 polishing 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 arranged in the first limiting groove (9); the second limiting ring (15) is rotatably arranged 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 larger than the diameters of the two ends, and the cross-sectional diameters of the two ends of the grinding head (12) gradually decrease. 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). Preferably, the main gear (23) is located in the lower ring of the cavity (21). 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); The grinding gear (25) and the grinding head (12) rotate at the same speed and in opposite directions. When in use, the pipe is placed in the middle of the conveying wheel (20), and the conveying motor (7) drives the main conveying shaft (18) to rotate, and the conveying wheel (20) squeezes and conveys 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 to rotate, so that the outer grinding particles (26) grind the outer surface of the pipe. The two work simultaneously and in opposite directions, so that the pipe can be prevented 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 is repeated alternately until the entire pipe is polished once, and 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

[0017] The difference between this embodiment and the first embodiment 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 the inner wall of the pipe is being ground, the grinding rings (29) can grind the inner wall within a certain length range. At the same time, the cross-section of the grinding rings (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

[0018] 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, a first grinding column (31) is arranged on the side surface of the oblique grinding head (30), and a second grinding column (33) is arranged on the side surface of the grinding head (12), 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 first grinding columns (33) are provided in a plurality of groups. A plurality of second grinding columns (33) in a group are arranged at equal distances along the circumferential direction of the side surface of the grinding head (12); 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 is arranged parallel to the table surface of the oblique grinding head (30); 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 is arranged parallel to the table surface of the oblique grinding head (30); 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, and 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 range that can pass through the interior; the fixed blocks (32) are in a stable triangular structure, which can fix the grinding particles (13) and reduce the risk of breakage, and can effectively grind large pieces of foreign matter inside; The sliding groove (4) is designed to cooperate 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) are designed to 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 designed to work in an intermittent state and does not convey during the grinding process, which can effectively avoid the risk of the pipe slipping or bending; The design that the grinding gear (25) and the grinding head (12) rotate at the same speed and in opposite directions can improve the grinding efficiency and prevent the pipe from rotating on the conveying wheel (20); 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 sponge pad of the inner layer can buffer the impact of the pipe, and the rubber pad of the outer layer 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, which can be stuck in the interior of the pipe for positioning, 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.

[0019] 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, an adhesive 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 communication 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.

[0020] It should be further pointed out that, when describing the above specific embodiments, for the sake of simplicity and clarity, only the differences between the above specific embodiments are described, but those skilled in the art should know that the above specific embodiments themselves are also independent technical solutions.

[0021] In actual use, the data processor and controller are all universal standard parts or parts known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0022] The data processor and controller are not limited to a certain brand and model. As mature products on the market, they can be purchased from the market. Therefore, the present invention does not need to describe the specific structure and shape of the signal converter, data processor and controller. The present invention does not need to explain this. It should be noted that the computer program loaded by the data processor and controller is not within the protection scope of the present invention. The present invention does not protect computer programs. When using the present invention, all computer programs need to be additionally loaded by those skilled in the art. According to the present invention, certain steps can be performed sequentially or simultaneously.

Claims

1. A synchronous moving dust collection structure for a grinding machine, comprising a supporting assembly and a dust collection assembly, characterized in that: The support assembly is arranged on the polishing box, and the dust suction assembly is arranged on the support assembly. The support assembly can be used to fix the position of the dust suction assembly and drive the dust suction assembly to move at the same time, and then the dust suction assembly can be used to absorb dust generated when the pipe is polished. The support assembly consists of a splint, a fixing bolt, a support frame, a dust suction motor, a threaded rod, a sliding rod and a sliding block. The splint is plug-in connected and placed on the side plate of the polishing box, the fixing bolt passes through one side of the splint and the polishing box, and is threadedly connected to the other side of the splint, both ends of the support frame are fixedly connected to the splint, the dust suction motor is fixedly placed on one side of the support frame, and the central axis of the dust suction motor is on the middle section of the support frame, one end of the threaded rod is connected to the dust suction motor and a supporting bearing is placed between the threaded rod and one support frame, the other end of the threaded rod is rotatably connected to the other support frame through a bearing, and both ends of the sliding rod are respectively fixed on the sides of the two support frames, and close to the middle position, the sliding rod and the threaded rod are arranged parallel to the sliding block. The top of the support frame is provided with a placement slot, and placement blocks are fixedly provided at both ends of the collection box, and the collection box can be plugged and removed from the support frame by the placement block and the placement slot. A dust inlet is provided on one side of the collection box, and one end of the connecting port is threadedly connected to the dust inlet, and the other end of the connecting port is rotatably connected to the other end of the dust suction pipe.

2. The synchronous moving dust suction structure of a grinding machine according to claim 1 is characterized in that The collection box is equipped with a dust bag, which is placed in the collection box. The dust bag is provided with a notch, which is fixed on the outer ring surface of the dust inlet, and the dust bag is made of microfiber cloth.

3. The synchronous moving dust suction structure of a grinding machine according to claim 1 is characterized in that A positioning screw is arranged on the side plate of the splint, a positioning splint is arranged on one end of the positioning screw, the positioning screw passes through one side plate of the splint and is threadedly connected to one side plate of the splint, the positioning splint is rotatably connected to the positioning screw and is arranged between the two side plates of the splint.

4. The synchronous moving dust suction structure of a grinding machine according to claim 1 is characterized in that The splint is arranged in a concave shape, and the inner side of the splint is in contact with the side plate of the polishing box. There are four splints, and the four splints are grouped in pairs. The two splints in each group are clamped on the same side plate of the polishing box. The two splints in each group are symmetrical about the support plate, and the two groups of splints are symmetrically arranged about the polishing box.

5. The synchronous moving dust suction structure of a grinding machine according to claim 1 is characterized in that There are four fixing bolts, and the clamping plates correspond to the fixing bolts one by one.

6. The synchronous moving dust suction structure of a grinding machine according to claim 1 is characterized in that There are two support frames, and the two support frames are symmetrically arranged with respect to the support plate. The support frames are U-shaped in design, and each of the support frames corresponds to two clamping plates. The two side plates of the support frames are arranged at right angles to the cross plate.

7. The synchronous moving dust suction structure of a grinding machine according to claim 1 is characterized in that The threaded rod is placed in the middle of the support frame.

8. The synchronous moving dust suction structure of a grinding machine according to claim 1 is characterized in that The cross section of one end of the air nozzle connected to the telescopic hose is in a circular ring shape, and the other end of the air nozzle is in an arc-shaped strip shape. The placement groove is placed at one quarter of the bottom plate of the support frame.

9. The synchronous moving dust suction structure of a grinding machine according to claim 1, characterized in that The width of the collection box remains unchanged from the top surface to one-half, and gradually increases from one-half to the bottom surface. The dust suction pipe spirally extends from one end to the other end.

10. The synchronous moving dust suction 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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