A composite wheel adapted metal profile grinding device for welding pre-treatment

Abstract

The application provides a composite wheel adaptation metal profile polishing device for welding pretreatment, and belongs to the technical field of polishing devices. The device comprises a workbench, a first support arranged on the workbench, a first transmission track arranged on the first support, and a sliding block arranged on the first transmission track. A first telescopic cylinder is arranged on one side of the sliding block, a first polishing motor is arranged on a movable rod of the first telescopic cylinder, a grinding disc is arranged on an output shaft of the first polishing motor, an electric sliding rail seat is further arranged on the workbench, and a polishing table is arranged on the electric sliding rail seat in a sliding mode. A second support is arranged on one side of the polishing table, a corner polishing assembly is arranged on the second support, the corner polishing assembly comprises a plurality of mounting components and a plurality of polishing wheels, and the polishing wheels are mounted on the mounting components. A dust collection assembly is arranged above the workbench, the dust collection assembly comprises a plurality of dust collection heads, the plurality of dust collection heads are respectively arranged on the grinding disc and the polishing wheels, and a control module is arranged on the workbench. The device can adapt to the profile of the metal pipe corner through the corner polishing assembly.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of polishing devices, more specifically, particularly relates to a composite wheel adapted metal profile polishing device for welding pretreatment. BACKGROUND

[0002] In the field of polishing devices, welding process is often used to connect metal pipes; for example, in the manufacture of building steel structures, in order to ensure the strength and stability of the structure, metal pipes are often spliced by welding; at this time, a polishing device is needed to polish the welding part of the metal pipe, so that the subsequent welding operation can be carried out smoothly and the welding quality is ensured.

[0003] The shape and angle of the grinding head equipped by the traditional equipment are relatively fixed, and this inherent characteristic makes it difficult for the grinding head to fit the profile when it contacts the corner area of the metal pipe, resulting in problems such as polishing blind area, excessive polishing or insufficient polishing during polishing, which seriously affects the polishing quality of the corner area. At the same time, due to the highly concentrated characteristics of the corner polishing work, the grinding head needs to bear frequent and high-intensity wear stress in a short time. This continuous high-load operation makes the grinding head prone to excessive wear. SUMMARY

[0004] In order to solve the above technical problems, the present application provides a composite wheel adapted metal profile polishing device for welding pretreatment, to solve the technical problems of poor polishing quality and easy excessive wear of the grinding head caused by fixed shape and angle of the grinding head when the traditional polishing equipment processes the corner of the metal pipe.

[0005] The purpose and effect of the composite wheel adapted metal profile polishing device for welding pretreatment of the present application are achieved by the following specific technical means:

[0006] A composite wheel adapted metal profile polishing device for welding pretreatment, comprising a workbench, a first support is arranged on the workbench, a first transmission rail is arranged on the first support, and a sliding block is slidably arranged on the first transmission rail;

[0007] A first telescopic cylinder is arranged on one side of the sliding block, a first polishing motor is arranged on the movable rod of the first telescopic cylinder, a grinding disc is arranged on the output shaft of the first polishing motor, and an electric sliding rail seat is further arranged on the workbench; a polishing table is slidably arranged on the electric sliding rail seat;

[0008] Two groups of clamping pieces for clamping metal pipes are arranged on the polishing table, a second support is arranged on one side of the polishing table, and a corner polishing assembly is arranged on the second support; the corner polishing assembly comprises a plurality of mounting pieces and a plurality of polishing wheels, and the polishing wheels are mounted on the mounting pieces;

[0009] A dust suction assembly is arranged above the workbench, and the dust suction assembly comprises a plurality of groups of dust suction heads arranged on the sides of the grinding disc and the grinding wheel respectively.

[0010] According to a preferred embodiment, the corner polishing assembly further comprises a fixing plate and a second transmission rail, the second transmission rail is installed on the second support, the fixing plate is in sliding connection with the second transmission rail, and a second telescopic cylinder is arranged on the fixing plate.

[0011] The mounting member is installed on the movable rod of the second telescopic cylinder, and the mounting member comprises a main frame, two groups of first mounting plates and second mounting plates are arranged on one side of the main frame, and a second polishing motor is arranged at one end of each of the two groups of first mounting plates and second mounting plates.

[0012] A grinding wheel is arranged on each of the two groups of first mounting plates and second mounting plates, and the grinding wheel is connected with the output shaft of the second polishing motor.

[0013] According to a preferred embodiment, two groups of first mounting ears are arranged on one side of the main frame, a first electric push rod is arranged on each of the first mounting ears, and a connecting plate is rotatably arranged on the top and bottom of the main frame, and the connecting plate is connected with the first electric push rod.

[0014] Second mounting ears are arranged on both sides of the connecting plate, the first mounting plate is hingedly connected with the connecting plate away from the main frame, a second electric push rod is arranged on one of the second mounting ears, and a return spring is arranged on the other second mounting ear, and the second electric push rod and the return spring are connected with the first mounting plate.

[0015] According to a preferred embodiment, a third mounting ear is arranged on one side of the main frame, a third electric push rod is arranged on the third mounting ear, the second mounting plate is hingedly connected with one end of the main frame, and the third electric push rod is connected with the second mounting plate.

[0016] The grinding wheel on the second mounting plate has a composite structure, the middle part of the grinding wheel is a cylindrical segment, conical segments are symmetrically arranged at both ends of the cylindrical segment, the included angle between the central axis of the cylindrical segment and the generatrix of the conical segment is α (α ∈ 30° to 60°).

[0017] According to a preferred embodiment, a visual recognition module is arranged on the main frame, the visual recognition module faces the polishing table, an annular pressure sensor is arranged on the mounting shaft of the grinding wheel of each of the first mounting plate and the second mounting plate, and the visual recognition module and the annular pressure sensor are electrically connected with the control module.

[0018] According to a preferred embodiment, the dust suction cover top is provided with a dust discharge port, the dust suction head is arranged on the dust discharge port, the first mounting plate and the second mounting plate are provided with dust suction rows on one side, and the dust suction heads are arranged on the dust suction rows.

[0019] The dust storage box is arranged in the workbench, the adsorption machine is arranged on the dust storage box, the adsorption machine is connected with the plurality of dust suction heads through pipelines, and the adsorption machine is electrically connected with the control module.

[0020] According to a preferred embodiment, the dust suction assembly further comprises a dust suction cover arranged on the side of the grinding disc, the dust suction cover comprises an upper cover body and a lower cover body, one end of the upper cover body is mounted on the first grinding motor, a dust suction cavity is formed in the upper cover body and the lower cover body, a plurality of dust suction holes are arranged on the bottom of the lower cover body, the dust suction cavity is in communication with the dust suction holes, the upper cover body and the lower cover body are detachably connected, and a sealing lip is arranged on the bottom of the lower cover body.

[0021] A plurality of guide vanes are arranged on the inner wall of the dust suction cavity, and the guide vanes are rotationally connected with the lower cover body through a rotating shaft.

[0022] According to a preferred embodiment, the upper cover body is provided with a mounting platform, the mounting platform is provided with a drive motor, a drive ring is arranged between the upper cover body and the lower cover body, the bottom of the drive ring is provided with an annular rack, the annular rack is engaged with the rotating shaft, a tooth ring is arranged on the side wall of the drive ring, the tooth ring is engaged with the drive motor through a connecting shaft, and the drive motor is electrically connected with the control module.

[0023] According to a preferred embodiment, a dust sensor is arranged on the air inlet of the dust storage box, and the dust sensor is electrically connected with the control module.

[0024] Two groups of spray heads are arranged in the dust storage box, a dry powder storage bin and a powder feeding pump are arranged on one side of the dust storage box, the two groups of spray heads are connected with the dry powder storage bin and the powder feeding pump through pipelines, an electric proportional valve is arranged on the connecting pipeline, and the electric proportional valve is electrically connected with the powder feeding pump and the control module.

[0025] According to a preferred embodiment, the clamping member comprises a base, a first adjusting rod and two groups of first guide rods, and the two sides of the grinding table are provided with convex edges, the first adjusting rod and the two groups of first guide rods are connected with the base through the convex edges.

[0026] The top of the base is provided with a mounting table, an adjusting plate is arranged below the mounting table, a second adjusting rod and two groups of second guide rods are arranged on the mounting table, one end of the second adjusting rod and the two groups of second guide rods is connected with the adjusting plate, and a pressing wheel is rotationally arranged on one side of the mounting table and the adjusting plate.

[0027] The supporting table is arranged on the polishing table, and a placing groove is arranged on the supporting table.

[0028] Compared with the prior art, the present application has the following beneficial effects:

[0029] 1、The adjustable corner polishing assembly is arranged, so that the device can adapt to the geometric profile of the metal pipe corner, and the polishing adaptability of the device to different shaped corners is improved. The relative position of the polishing wheel and the corner can be positioned by the sliding of the fixed plate on the second transmission rail and the adjustment of the position of the mounting piece by the second telescopic cylinder, so that the device can more comprehensively polish the corner area, and the polishing quality of the device when processing complex corners is improved.

[0030] 2、When using the device, the shape and position information of the corner can be obtained by the visual recognition module on the main frame recognizing the polishing table and the metal pipe corner, so that the device can make adjustments according to the actual situation. Then, the ring-shaped pressure sensor on the polishing wheel mounting shaft of the first mounting plate and the second mounting plate detects the pressure between the polishing wheel and the metal pipe, and feeds back the information to the control module, so that the device can adjust the polishing parameters in time according to the pressure change, avoid over-polishing or insufficient polishing, and improve the stability of the polishing precision of the device.

[0031] 3、The device can better fit different parts of the metal pipe corner by arranging the polishing wheel with a composite structure, and the pertinence of the device when polishing the corner is improved. The device can adapt to different curvatures and inclinations at the corner by adjusting the angle of the second mounting plate and the composite polishing wheel through the third electric push rod, so that the device can fully exert the advantages of each part of the composite polishing wheel during polishing, and the polishing efficiency of the device when polishing complex corner shapes is improved. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a structural schematic view of the workbench of the present application;

[0033] Figure 2 is a structural schematic view of the corner polishing assembly of the present application;

[0034] Figure 3 is a structural schematic view of the mounting piece of the present application;

[0035] Figure 4 is a structural schematic view of the connecting plate of the present application;

[0036] Figure 5 is a structural schematic view of the polishing wheel of the present application;

[0037] Figure 6 is a structural schematic view of the clamping piece of the present application;

[0038] Figure 7 is a structural schematic diagram of a dust collection assembly of the present application;

[0039] Figure 8 is a structural schematic diagram of a driving ring of the present application;

[0040] Figure 9 is a structural schematic diagram of an internal structure of a dust collection assembly of the present application;

[0041] Figure 10 is a structural schematic diagram of a dry powder storage bin of the present application;

[0042] Figure 11 is a structural schematic diagram of a dust storage box of the present application;

[0043] Figure 12 is a principle framework diagram of the present application.

[0044] In the drawings, the correspondence between the component names and the reference numerals is as follows:

[0045] 101, workbench; 102, first support; 103, second support; 104, first transmission rail; 105, sliding block; 106, first telescopic cylinder; 107, first polishing motor; 108, grinding disc; 109, electric sliding rail seat; 111, polishing table; 112, support table; 113, placing groove; 201, fixed plate; 202, second telescopic cylinder; 203, main frame; 204, first mounting ear; 205, first electric push rod; 206, connecting plate; 207, second mounting ear; 208, second electric push rod; 209, return spring; 211, third mounting ear; 212, third electric push rod; 213, first mounting plate; 214, second mounting plate; 215, polishing wheel; 216, second transmission rail; 217, second polishing motor; 301, base; 302, first adjusting rod; 303, first guide rod; 304, mounting table; 305, adjusting plate; 306, second adjusting rod; 307, second guide rod; 308, pressing wheel; 401, dust collection head; 402, upper cover body; 403, lower cover body; 404, dust collection cavity; 405, guide vane; 406, rotating shaft; 407, mounting platform; 408, driving motor; 409, driving ring; 411, annular rack; 412, gear ring; 413, dust collection row; 414, dust storage box; 415, adsorption machine; 416, spray head; 417, dry powder storage bin; 418, powder feeding pump; 419, sealing lip; 501, control module; 502, visual recognition module; 503, annular pressure sensor; 504, dust sensor; 505, electric proportional valve. DETAILED DESCRIPTION

[0046] The embodiments of the present application will be further described in conjunction with the drawings and examples. The following examples are used to illustrate the technical solutions of the present application, but cannot be used to limit the protection scope of the present application.

[0047] Embodiments

[0048] As shown in Figures 1 to 12 , the present application provides a composite wheel adapted metal profile grinding device for welding pretreatment, which comprises a workbench 101, the workbench 101 is provided with a first support 102, the first support 102 is provided with a first transmission rail 104, and the first transmission rail 104 is slidably provided with a sliding block 105; the workbench 101 serves as the basic bearing platform of the device, and provides support structure for the whole device. The first support 102 is arranged on the workbench 101, and its function is to bear the first transmission rail 104. The first transmission rail 104 provides linear motion guide for the sliding block 105, so that the sliding block 105 can slide along the rail. This structure configuration realizes the position adjustment of the sliding block 105 in a specific plane of the workbench 101, and meets the spatial position adjustment requirement of polishing the surface of metal pipes in different positions.

[0049] A first telescopic cylinder 106 is arranged on one side of the sliding block 105, a first polishing motor 107 is arranged on the movable rod of the first telescopic cylinder 106, a grinding disc 108 is arranged on the output shaft of the first polishing motor 107, an electric sliding rail seat 109 is further arranged on the workbench 101, and a polishing table 111 is slidably arranged on the electric sliding rail seat 109; the first telescopic cylinder 106 is connected to one side of the sliding block 105, the movable rod of the first telescopic cylinder 106 is connected to the first polishing motor 107, and the output shaft of the first polishing motor 107 is assembled with the grinding disc 108. This connection mode enables the first telescopic cylinder 106 to control the displacement of the first polishing motor 107 and the grinding disc 108 in the direction perpendicular to the first transmission rail 104, thereby realizing the adjustment of the distance between the grinding disc 108 and the surface of the metal pipe. At the same time, the electric sliding rail seat 109 arranged on the workbench 101 bears the slidable polishing table 111. The electric sliding rail seat 109 provides linear motion drive for the polishing table 111 in the horizontal direction, so that the polishing table 111 can move in a specific direction on the workbench 101. In this way, the depth adjustment of the grinding disc 108 in the vertical direction and the position movement of the polishing table 111 in the horizontal direction cooperate with each other to meet the polishing requirements of different parts of metal pipes of different sizes, and realize the cooperative operation of position and depth adjustment in the polishing process.

[0050] The polishing table 111 is provided with two groups of clamping members for clamping the metal pipe. The polishing table 111 is provided with a second support 103 on one side. The second support 103 is provided with a corner polishing assembly. The corner polishing assembly includes a plurality of mounting members and a plurality of polishing wheels 215. The polishing wheels 215 are mounted on the mounting members. The polishing table 111 serves as a placement platform for the metal pipe. The two groups of clamping members are arranged on the polishing table 111 and clamp the metal pipe through a mechanical structure. The displacement of the metal pipe caused by external force during polishing is reduced, and the stability of polishing precision is ensured. The second support 103 is arranged on one side of the polishing table 111 and bears the corner polishing assembly. The corner polishing assembly is composed of a plurality of mounting members and a plurality of polishing wheels 215. The polishing wheels 215 are mounted on the mounting members. The polishing wheels 215 are fixed and positioned by different mounting members, and the polishing wheels 215 are arranged at the corner position.

[0051] A dust collection assembly is arranged above the workbench 101. The dust collection assembly includes a plurality of dust collection heads 401. The plurality of dust collection heads 401 are respectively located on the side of the grinding disc 108 and the polishing wheel 215. The workbench 101 is provided with a control module 501. The dust collection assembly arranged above the workbench 101 is composed of a plurality of dust collection heads 401. The dust collection heads 401 are respectively located on the side of the grinding disc 108 and the polishing wheel 215. The dust collection assembly is arranged to collect metal dust generated during polishing. According to the principle of aerodynamics, the dust is sucked into the dust collection heads 401 by negative pressure, so as to avoid the spread of dust in the working environment and meet the requirements of cleanliness and occupational health and safety in industrial production. The control module 501 serves as the control core of the entire device. The control module 501 controls various electrical and mechanical components in the device, such as motors, air cylinders, sensors, etc. through electrical signal transmission and logical operation. The control module 501 adjusts the operating parameters of each component according to the preset program instructions and the data feedback of the sensor, so as to ensure the stability of the device. The control module 501 can be a CX5140-0022 type industrial computer

[0052] As Figures 1 to 5As shown, the corner polishing assembly further comprises a fixed plate 201 and a second transmission rail 216, the second transmission rail 216 is installed on the second support 103, the fixed plate 201 and the second transmission rail 216 are in sliding connection, and the fixed plate 201 is provided with a second telescopic cylinder 202; the second transmission rail 216 is installed on the second support 103, providing a linear sliding guide structure for the fixed plate 201. The sliding connection of the fixed plate 201 and the second transmission rail 216 enables the fixed plate 201 to move linearly along the second transmission rail 216, which realizes the preliminary adjustment of the position of the corner polishing assembly in the vertical direction, and enables the polishing assembly to align with different positions of the metal pipe corner. The second telescopic cylinder 202 provided on the fixed plate 201 functions to finely adjust the position of the mounting member in the direction perpendicular to the second transmission rail 216. Through the telescopic movement of the second telescopic cylinder 202, the distance between the mounting member and the metal pipe corner can be controlled.

[0053] The mounting member is installed on the movable rod of the second telescopic cylinder 202, and comprises a main frame 203, one side of the main frame 203 is provided with two groups of first mounting plates 213 and second mounting plates 214, and one end of each of the two groups of first mounting plates 213 and second mounting plates 214 is provided with a second polishing motor 217; the mounting member serves as a component connecting the second telescopic cylinder 202 and the polishing wheel 215, and the main frame 203 thereof provides a support frame for the entire structure. The two groups of first mounting plates 213 and second mounting plates 214 provided on one side of the main frame 203 provide a mounting basis for the second polishing motor 217 and the polishing wheel 215. The second polishing motor 217 is installed at one end of the first mounting plate 213 and the second mounting plate 214, which enables the second polishing motor 217 to provide rotary power for the corresponding polishing wheel 215. The two groups of mounting plates increase the arrangement of the polishing wheel 215 and improve the adaptability and functionality of polishing complex corners.

[0054] The two groups of first mounting plates 213 and second mounting plates 214 are each provided with a polishing wheel 215, and the polishing wheel 215 is connected with the output shaft of the second polishing motor 217. The direct connection of the polishing wheel 215 with the output shaft of the second polishing motor 217 can reduce energy loss in the power transmission process and ensure that the polishing wheel 215 obtains stable rotary power. After the second polishing motor 217 converts electrical energy into mechanical energy, it directly transmits the mechanical energy to the polishing wheel 215 through the output shaft, so that the polishing wheel 215 can polish the metal pipe corner at a set speed. This ensures the stability and concentricity of the polishing wheel 215 during high-speed rotation, which helps to improve the polishing quality and ensure that the polished metal pipe corner meets the process requirements.

[0055] The main frame 203 is provided with two groups of first mounting ears 204, and the first electric push rod 205 is arranged on the first mounting ear 204. The top and bottom of the main frame 203 are rotatably provided with the connecting plate 206, and the connecting plate 206 is connected with the first electric push rod 205. The two groups of first mounting ears 204 arranged on the side of the main frame 203 provide mounting sites for the first electric push rod 205. The first electric push rod 205 is mounted on the first mounting ear 204, and the telescopic movement of the first electric push rod 205 becomes one of the power sources of the whole angle adjusting mechanism. The connecting plate 206 rotatably arranged on the top and bottom of the main frame 203 is connected with the first electric push rod 205, thereby constructing a movable structural frame. The telescopic movement of the first electric push rod 205 can drive the connecting plate 206 to rotate around the rotating connecting point of the main frame 203. This arrangement enables the components connected with the connecting plate 206 to be adjusted within a certain angle range, thereby laying a foundation for subsequent multi-angle adjustment of the polishing wheel 215 and meeting the requirement for angle adjustment of the polishing wheel 215 when polishing metal pipe edges and corners with different inclination angles and shapes.

[0056] The connecting plate 206 is provided with the second mounting ear 207 on both sides, and the first mounting plate 213 is hingedly connected to the end of the connecting plate 206 away from the main frame 203. The second electric push rod 208 is arranged on one group of second mounting ears 207, and the reset spring 209 is arranged on the other group of second mounting ears 207. The second electric push rod 208 and the reset spring 209 are both connected with the first mounting plate 213. The second mounting ears 207 arranged on both sides of the connecting plate 206 are respectively connected with the second electric push rod 208, the reset spring 209 and the first mounting plate 213. The first mounting plate 213 is hingedly connected to the end of the connecting plate 206 away from the main frame 203, so that the first mounting plate 213 can rotate around the hinge point as the axis. The second electric push rod 208 arranged on one group of second mounting ears 207 can drive the first mounting plate 213 to rotate around the hinge point through the telescopic movement of the second electric push rod 208, thereby actively adjusting the angle of the first mounting plate 213. The reset spring 209 arranged on the other group of second mounting ears 207 can provide a reverse reset tension for the first mounting plate 213 after the adjustment of the second electric push rod 208 is completed or the pushing force is removed, thereby ensuring the stability and position accuracy of the first mounting plate 213 during the adjustment process. When the polishing wheel 215 needs to be adjusted in angle during the polishing process due to different shapes of edges and corners, the second electric push rod 208 drives the first mounting plate 213 according to the control instruction, and the reset spring 209 assists in maintaining the stability of the angle and assists the first mounting plate 213 to return to the initial or preset position when needed. The cooperative action realizes the adjustment of the angle of the first mounting plate 213 and the polishing wheel 215, so as to better fit the complex profile of the metal pipe edge and corner and improve the polishing quality and efficiency.

[0057] The third mounting lug 211 provided on one side of the main frame 203 provides a mounting support point for the third electric push rod 212. The third electric push rod 212 is mounted on the third mounting lug 211, and one end thereof is connected with the second mounting plate 214, and the second mounting plate 214 is hinged to one end of the main frame 203. This structure enables the third electric push rod 212 to control the rotation of the second mounting plate 214 around the hinge point through the telescopic action. In this way, the angle of the second mounting plate 214 can be adjusted according to the actual shape of the metal pipe edge and the polishing process requirements, and then the contact angle of the polishing wheel 215 mounted thereon with the metal pipe edge is changed, so as to ensure that the polishing wheel 215 can be polished at the best angle to the edge, thereby improving the polishing effect and quality. This setting enhances the adaptability of the device to polishing of edges of different shapes.

[0058] The polishing wheel 215 on the second mounting plate 214 is of a composite structure, the middle part of the polishing wheel 215 is a cylindrical segment, and the two ends are symmetrically provided with conical segments, the middle axis of the cylindrical segment and the generatrix of the conical segment are included at an angle α (α ∈ 30° to 60°). The composite structure polishing wheel 215 used on the second mounting plate 214 is composed of a cylindrical segment in the middle part and symmetrically arranged conical segments at both ends, and the angle α between the middle axis of the cylindrical segment and the middle axis of the conical segment is between 30° and 60°. This composite structure enables the polishing wheel 215 to better adapt to the complex and variable geometry of the metal pipe edge. During polishing, the conical segment can be used to process the inclined part or the area with a certain curvature of the edge, which can better fit the edge profile for polishing, avoiding the occurrence of polishing blind area or excessive polishing. The cylindrical segment in the middle part can be used to polish the relatively flat edge part, ensuring the flatness and uniformity of polishing. Through the setting of the composite structure polishing wheel 215, the device can complete the polishing work of various complex edges without replacing the grinding head, improving the polishing efficiency and quality, and reducing the time cost and equipment loss caused by frequent replacement of the grinding head.

[0059] The main frame 203 is provided with a visual recognition module 502, the visual recognition module 502 faces the polishing table 111, the installation shaft of the polishing wheel 215 of the first mounting plate 213 and the second mounting plate 214 is provided with an annular pressure sensor 503, and the visual recognition module 502 and the annular pressure sensor 503 are electrically connected with the control module 501. The visual recognition module 502 provided on the main frame 203 faces the polishing table 111, and the core function is to visually detect the metal pipe placed on the polishing table 111. The visual recognition module 502 can obtain key information such as the shape, size and corner position of the metal pipe by using image recognition technology. Through analysis and processing of these visual data, the visual recognition module 502 can provide positioning basis for the whole polishing system. The annular pressure sensor 503 is arranged on the installation shaft of the polishing wheel 215 of the first mounting plate 213 and the second mounting plate 214, and the main function is to monitor the pressure of the polishing wheel 215 when it is in contact with the surface of the metal pipe during polishing. During polishing, the size of the pressure directly affects the polishing effect and the wear degree of the polishing wheel 215. The annular pressure sensor 503 can convert the monitored pressure data into an electrical signal and transmit it to the control module 501. Through these pressure data, the control module 501 can understand the force between the polishing wheel 215 and the metal pipe. The annular pressure sensor 503 can adopt LZ-HLC120 type annular pressure sensor, and the visual recognition module 502 can adopt SC830LA type visual recognition module.

[0060] Specifically, when the metal pipe is fed, the operator places it in the placement slot 113 of the support table 112 of the polishing table 111. After the first adjusting rod 302 coarsely adjusts the position of the base 301 through the two-stage adjustment of the clamping piece, and the second adjusting rod 306 finely adjusts the height of the adjusting plate 305 and is fixed, the visual recognition module 502 on the main frame 203 starts to scan and obtain information such as the size, corner type and position coordinates of the pipe, and transmits the information to the control module 501 to generate a polishing path plan. Subsequently, the control module 501 drives the drive motor of the second transmission rail 216 to make the fixed plate 201 vertically along the rail, aligns the main frame 203 with the corner starting point, and adjusts the horizontal position of the mounting piece through the second telescopic cylinder 202 to make the polishing wheel 215 have a 5mm safety gap with the corner.

[0061] Based on the corner features recognized by the vision, the control module 501 cooperatively controls each electric push rod: the first electric push rod 205 drives the connecting plate 206 to rotate around the main frame 203 to provide support for the adjustment of the first mounting plate 213; the second electric push rod 208 drives the first mounting plate 213 to rotate around the hinge point, so that the conical section of the polishing wheel 215 on the first mounting plate 213 fits the bevel; the third electric push rod 212 adjusts the angle of the second mounting plate 214, so that the conical section of the composite polishing wheel 215 aligns with the inclined surface of the bevel, and the cylindrical section aligns with the flat area at the root, and the reset spring 209 provides a reverse tension to avoid overshoot.

[0062] When polishing starts, the second polishing motor 217 drives the polishing wheel 215 to rotate, the second telescopic cylinder 202 slowly extends to make the polishing wheel 215 contact the corner, and the annular pressure sensor 503 monitors the installation shaft pressure:

[0063] If the pressure is insufficient (<5N), the cylinder extends at a faster speed; if the pressure is too large (>20N), the cylinder slows down and reduces the speed to ensure the polishing quality. At the same time, the second transmission rail (216) drives the fixed plate (201) to slide at a constant speed, and drives the composite polishing wheel (215) to move along the corner path, the conical section preferentially polishes the inclined surface to deburr, and the cylindrical section then processes the root flat area to realize full-area coverage.

[0064] As shown in Figures 1 to 11 , the dust cover is provided with a dust discharge port at the top, the dust discharge port is provided with a dust suction head 401, one side of the first mounting plate 213 and the second mounting plate 214 is provided with a dust suction row 413, and the dust suction row 413 is provided with a dust suction head 401; the dust cover is provided with a dust discharge port at the top, and the dust suction head 401 is installed on the dust discharge port, and the dust suction row 413 is arranged on one side of the first mounting plate 213 and the second mounting plate 214, and the dust suction row 413 is also provided with a dust suction head 401. This layout can collect dust generated in the polishing process on a large scale. The dust suction head 401 located at the top of the dust cover can collect dust uplifted from the grinding disc 108 and the periphery, and the dust suction row 413 and the dust suction head 401 arranged on one side of the first mounting plate 213 and the second mounting plate 214 can collect dust generated when the polishing wheel 215 polishes the metal pipe corner. The multi-angle and multi-position arrangement of the dust suction head 401 expands the dust collection range, improves the dust collection efficiency, reduces the spread of dust in the working environment, and creates a relatively clean working condition for the operator.

[0065] The dust storage box 414 is arranged in the workbench 101, the dust storage box 414 is provided with a suction machine 415, the suction machine 415 is connected with a plurality of dust suction heads 401 through a pipeline, and the suction machine 415 is electrically connected with the control module 501. The dust storage box 414 is arranged in the workbench 101 as a dust storage container, and the suction machine 415 installed on the dust storage box 414 is connected with a plurality of dust suction heads 401 through a pipeline. The negative pressure generated by the suction machine 415 is transmitted to each dust suction head 401 through the pipeline, so that the dust generated in the polishing process is sucked into the dust storage box 414. The suction machine 415 is electrically connected with the control module 501, and the control module 501 can regulate and control the suction force of the suction machine 415 according to the actual polishing conditions, such as polishing intensity and dust generation amount. When a large amount of dust is generated in the polishing operation, the control module 501 can enhance the suction force of the suction machine 415 to ensure that the dust is collected in time; and when the dust generation amount is small, the suction force can be appropriately reduced to save energy. This arrangement realizes the collection and reasonable treatment of dust, and ensures the continuous and stable operation of the device.

[0066] The dust collection assembly further comprises a dust collection cover arranged at the periphery of the grinding disc 108, the dust collection cover comprising an upper cover body 402 and a lower cover body 403, the upper cover body 402 being mounted at one end on the first grinding motor 107, the upper cover body 402 and the lower cover body 403 forming a dust collection cavity 404 inside, a plurality of dust collection holes being formed at the bottom of the lower cover body 403, the dust collection cavity 404 being in communication with the dust collection holes, the upper cover body 402 and the lower cover body 403 being detachably connected, and a sealing lip 419 being arranged at the bottom of the lower cover body 403; the dust collection cover arranged at the periphery of the grinding disc 108 in the dust collection assembly is composed of the upper cover body 402 and the lower cover body 403. The upper cover body 402 is mounted at one end on the first grinding motor 107, and together with the lower cover body 403 forms the dust collection cavity 404. A plurality of dust collection holes are formed at the bottom of the lower cover body 403, so that dust can enter the dust collection cavity 404 through the dust collection holes, realizing collection of dust near the grinding disc 108. The upper cover body 402 and the lower cover body 403 are detachably connected, facilitating cleaning and maintenance of the inside of the dust collection cover. When a large amount of dust accumulates in the dust collection cavity 404 or a component fails, the dust collection cover can be easily detached for cleaning or repair. The sealing lip 419 arranged at the bottom of the lower cover body 403 enhances the sealing performance of the dust collection cover and the periphery of the grinding disc 108, reduces the possibility of dust leakage from the bottom of the dust collection cover, and further improves the dust collection efficiency.

[0067] A plurality of guide vanes 405 are arranged on the inner wall of the dust collection cavity 404, and the guide vanes 405 are rotatably connected to the lower cover body 403 through a rotating shaft 406. The guide vanes 405 are used to guide the airflow direction in the dust collection cavity 404. The guide vanes 405 can be rotated through the rotating shaft 406 to adjust the angle of the blade surface, guiding the airflow in the dust collection cavity 404 to rotate in a specific direction to form a rotational flow. The centrifugal force generated by the rotational flow can cause the metal dust with a higher density to gather towards the center of the dust collection cavity 404, so that the dust is more easily brought into the dust collection pipeline by the suction airflow of the suction machine 415, reducing the diffusion and escape of the dust in the cavity. When the metal pipe is being ground, the amount of dust generated and the particle size will change with the grinding speed and the type of edge and corner. By adjusting the angle of the guide vanes 405, the dust characteristics under different working conditions can be matched: when grinding at high speed, the angle is increased to strengthen the rotational flow to quickly capture large particle dust; when grinding at low speed, the angle is reduced to avoid strong rotational flow from causing fine dust to be raised again.

[0068] The upper cover 402 is provided with a mounting platform 407, and the mounting platform 407 is provided with a driving motor 408. The upper cover 402 and the lower cover 403 are provided with a driving ring 409. The bottom of the driving ring 409 is provided with an annular gear rack 411, and the annular gear rack 411 is engaged with the rotating shaft 406. The sidewall of the driving ring 409 is provided with a gear ring 412, and the gear ring 412 is engaged with the connecting shaft of the driving motor 408. The driving motor 408 is electrically connected with the control module 501. The driving motor 408 is electrically connected with the control module 501, and receives the start-stop or speed adjustment instruction as a power source. The sidewall of the driving ring 409 between the upper cover 402 and the lower cover 403 is provided with a gear ring 412, and the gear ring 412 is engaged with the connecting shaft of the driving motor 408. The bottom is directly engaged with the rotating shaft 406 of the guide vane 405 through the annular gear rack 411. When the control module 501 sends the adjustment instruction according to the working condition, the driving motor 408 is started, and the driving ring 409 is driven to rotate around the center axis of the dust collection cavity 404 through the connecting shaft. The annular gear rack 411 at the bottom of the driving ring 409 drives all rotating shafts 406 to rotate synchronously, and then drives the guide vane 405 to rotate around the rotating shaft 406, and dynamically adjusts the blade angle.

[0069] The dust sensor 504 is arranged at the air inlet of the dust storage box 414, and the dust sensor 504 is electrically connected with the control module 501. The dust sensor 504 can monitor the dust concentration entering the dust storage box 414, and feed back the monitoring data to the control module 501. The control module 501 can understand the accumulation of dust in the dust storage box 414 according to the data.

[0070] The dust storage box 414 is provided with two groups of spray heads 416, and a dry powder storage bin 417 and a powder feeding pump 418 are arranged on one side of the dust storage box 414. The two groups of spray heads 416 are connected to the dry powder storage bin 417 and the powder feeding pump 418 through pipelines, and an electric proportional valve 505 is arranged on the pipeline. The electric proportional valve 505 is electrically connected to the powder feeding pump 418 and the control module 501. When the dust sensor 504 detects that the dust concentration in the dust storage box 414 reaches a certain threshold value, the control module 501 starts the powder feeding pump 418, and controls the amount of dry powder delivered from the dry powder storage bin 417 to the spray head 416 through the electric proportional valve 505. The spray head 416 sprays dry powder on the dust in the dust storage box 414, and the dry powder can inhibit the flying and explosion risk of the dust, ensuring the safety of the dust storage box 414 during the storage of the dust. This arrangement realizes active explosion prevention treatment of the dust in the dust storage box 414, and improves the safety and reliability of the device during the dust treatment process. The electric proportional valve 505 can be an ITV1050-012C type electric proportional valve, and the dust sensor 504 can be an SDS026 type dust sensor.

[0071] Specifically, the dust suction hole at the bottom of the lower cover body 403 sucks dust near the grinding disc 108, the dust suction head 401 at the top of the dust discharge port sucks the dust flying up, and the dust suction discharge port 413 on one side of the first mounting plate 213 and the second mounting plate 214 collects dust for edge grinding, realizing multi-angle collection. According to the grinding speed and the type of edge, the control module 501 drives the motor 408 to adjust the angle of the guide vane 405 through the driving ring 409-ring rack 411 linkage mechanism, guides the airflow in the dust suction cavity 404 to form a cyclone, and collects metal dust to the center, improving the adsorption efficiency. The adsorption machine 415 generates negative pressure to suck dust into the dust storage box 414 through the pipeline, and the dust sensor 504 monitors the dust concentration in the dust storage box 414. If it exceeds the standard, the control module 501 triggers the powder feeding pump 418, adjusts the amount of dry powder through the electric proportional valve 505, and sprays it into the dust storage box 414 through the spray head 416 to inhibit the flying and explosion risk of the dust.

[0072] After grinding is completed, the control module 501 closes the motor, the cylinder retracts to reset the grinding wheel 215, and the dust suction assembly continues to operate until the dust cleaning is completed; at the same time, the detachable upper cover body 402 and lower cover body 403 facilitate subsequent maintenance, the sealing lip 419 reduces dust leakage, and the whole process is safely completed.

[0073] As Figure 1 , 6As shown, the clamping member includes a base 301 and a first adjusting rod 302 and two groups of first guide rods 303, and the polishing table 111 is provided with a raised edge on both sides, and the first adjusting rod 302 and the two groups of first guide rods 303 are connected with the base 301 through the raised edge.

[0074] In this way, the position of the base 301 relative to the polishing table 111 can be adjusted through the first adjusting rod 302, and the two groups of first guide rods 303 play a guiding role to ensure smooth movement of the base 301, so that the relative position between the clamping member and the polishing table 111 can be adjusted according to the diameter and other sizes of the metal pipe, and the metal pipe is prepared for stable clamping.

[0075] The base 301 is provided with a mounting table 304, and the mounting table 304 is provided below with an adjusting plate 305, and the mounting table 304 is provided with a second adjusting rod 306 and two groups of second guide rods 307, and one end of the second adjusting rod 306 and the two groups of second guide rods 307 is connected with the adjusting plate 305, and the mounting table 304 and the adjusting plate 305 are provided with a pressing wheel 308 on one side.

[0076] In this way, the second adjusting rod 306 can drive the adjusting plate 305 to move up and down along the second guide rod 307, and then adjust the distance between the two pressing wheels 308. When it is necessary to fix the metal pipe for polishing operation, the pressing wheel 308 can be adjusted to fit the metal pipe, at which time the pressing wheel 308 generates sufficient friction force on the metal pipe, so as to clamp the metal pipe and prevent it from moving during polishing to ensure polishing accuracy.

[0077] When polishing is completed on one side and the metal pipe needs to be rotated for polishing on the other side, the second adjusting rod 306 is only needed to be rotated to appropriately relax the pressure of the pressing wheel 308 on the metal pipe, at which time the metal pipe can be easily rotated with manual assistance, and the pressing wheel 308 itself will also rotate with the metal pipe, which does not hinder the rotation of the metal pipe, but can always maintain a certain contact pressure to maintain the basic positioning of the metal pipe, facilitating the all-around polishing of the metal pipe.

[0078] Meanwhile, the device can be clamped through the adjusting plate 305 and the base 301 to have the function of polishing metal plates, improving the adaptability of the device.

[0079] The polishing table 111 is provided with a supporting table 112, and the supporting table 112 is provided with a placing groove 113.

[0080] In this way, the metal pipe can be placed in the placing groove 113, and the placing groove 113 plays a role in preliminary positioning and supporting the metal pipe, cooperates with the clamping member to further stabilize the position of the metal pipe, ensures that the metal pipe does not roll or move randomly during polishing, and ensures the smooth progress of the polishing work.

[0081] The foregoing illustrates and describes the basic principles and main features of the application and the advantages thereof, and it will be apparent to those skilled in the art that the application is not limited to the details of the above-described exemplary embodiments.

Claims

1. A composite wheel adapted metal profile polishing device for welding pretreatment, comprising a workbench (101), characterized in that: a first support (102) is arranged on the workbench (101), a first transmission rail (104) is arranged on the first support (102), and a sliding block (105) is slidably arranged on the first transmission rail (104); a first telescopic cylinder (106) is arranged on one side of the sliding block (105), a first polishing motor (107) is arranged on the movable rod of the first telescopic cylinder (106), a grinding disc (108) is arranged on the output shaft of the first polishing motor (107), an electric sliding rail seat (109) is further arranged on the workbench (101), and a polishing table (111) is slidably arranged on the electric sliding rail seat (109); two groups of clamping pieces for clamping metal pipes are arranged on the polishing table (111), a second support (103) is arranged on one side of the polishing table (111), a corner polishing assembly is arranged on the second support (103), the corner polishing assembly comprises a plurality of mounting pieces and a plurality of polishing wheels (215), and the polishing wheels (215) are mounted on the mounting pieces; a dust collection assembly is arranged above the workbench (101), the dust collection assembly comprises a plurality of dust collection heads (401), the plurality of dust collection heads (401) are respectively located on the periphery of the grinding disc (108) and the polishing wheels (215), and a control module (501) is arranged on the workbench (101); a dust storage box (414) is arranged in the workbench (101), an adsorption machine (415) is arranged on the dust storage box (414), the adsorption machine (415) is connected with the plurality of dust collection heads (401) through pipelines, and the adsorption machine (415) is electrically connected with the control module (501); a dust sensor (504) is arranged on the air inlet of the dust storage box (414), and the dust sensor (504) is electrically connected with the control module (501); two groups of nozzles (416) are arranged in the dust storage box (414), a dry powder storage bin (417) and a powder feeding pump (418) are arranged on one side of the dust storage box (414), the two groups of nozzles (416) are connected with the dry powder storage bin (417) and the powder feeding pump (418) through pipelines, an electric proportional valve (505) is arranged on the connecting pipelines, and the electric proportional valve (505) is electrically connected with the powder feeding pump (418) and the control module (501); the dust collection assembly further comprises a dust collection cover arranged on the periphery of the grinding disc (108), the dust collection cover comprises an upper cover body (402) and a lower cover body (403), one end of the upper cover body (402) is mounted on the first polishing motor (107), a dust collection cavity (404) is formed in the upper cover body (402) and the lower cover body (403), a plurality of dust collection holes are formed in the bottom of the lower cover body (403), the dust collection cavity (404) is in communication with the dust collection holes, the upper cover body (402) and the lower cover body (403) are detachably connected, and a sealing lip (419) is arranged on the bottom of the lower cover body (403). ​ ​ ​ ​ ​ ​ ​ ​ The inner wall of the dust absorption cavity (404) is provided with a plurality of groups of guide vanes (405), and the guide vanes (405) are rotationally connected with the lower cover body (403) through a rotating shaft (406); The upper cover body (402) is provided with a mounting platform (407), the mounting platform (407) is provided with a driving motor (408), a driving ring (409) is arranged between the upper cover body (402) and the lower cover body (403), the bottom of the driving ring (409) is provided with an annular rack (411), the annular rack (411) is meshed with the rotating shaft (406), the side wall of the driving ring (409) is provided with a tooth ring (412), the tooth ring (412) is meshed with the driving motor (408) through a connecting shaft, and the driving motor (408) is electrically connected with the control module (501).

2. The composite wheel adapted metal profile polishing device for welding pretreatment according to claim 1, characterized in that: The corner polishing assembly further comprises a fixed plate (201) and a second transmission track (216), the second transmission track (216) is mounted on the second support (103), the fixed plate (201) is in sliding connection with the second transmission track (216), and the fixed plate (201) is provided with a second telescopic cylinder (202); The mounting piece is mounted on the movable rod of the second telescopic cylinder (202), the mounting piece comprises a main frame (203), one side of the main frame (203) is provided with two groups of first mounting plates (213) and second mounting plates (214), one end of each of the two groups of first mounting plates (213) and second mounting plates (214) is provided with a second polishing motor (217); The first mounting plates (213) and the second mounting plates (214) are provided with polishing wheels (215), and the polishing wheels (215) are connected with the output shafts of the second polishing motors (217).

3. The composite wheel adapted metal profile polishing device for welding pretreatment according to claim 2, characterized in that: One side of the main frame (203) is provided with two groups of first mounting ears (204), the first mounting ears (204) are provided with first electric push rods (205), the top and the bottom of the main frame (203) are rotationally provided with connecting plates (206), the connecting plates (206) are connected with the first electric push rods (205); The connecting plates (206) are provided with second mounting ears (207) on the two sides, one end of the first mounting plates (213) and the connecting plates (206) away from the main frame (203) is hingedly connected, one group of the second mounting ears (207) is provided with a second electric push rod (208), the other group of the second mounting ears (207) is provided with a reset spring (209), and the second electric push rod (208) and the reset spring (209) are connected with the first mounting plates (213).

4. The composite wheel adapted metal profile polishing device for welding pretreatment according to claim 3, characterized in that: The third mounting lug (211) is provided with a third electric push rod (212), the second mounting plate (214) is hinged to one end of the main frame (203), and the third electric push rod (212) is connected with the second mounting plate (214); The polishing wheel (215) on the second mounting plate (214) is of a composite structure, the middle part of the polishing wheel (215) is a cylindrical segment, the two ends are symmetrically provided with conical segments, and the included angle between the central axis of the cylindrical segment and the generatrix of the conical segment is α (α is 30° to 60°).

5. The composite wheel adapted metal profile polishing device for welding pretreatment according to claim 4, characterized in that: The main frame (203) is provided with a visual identification module (502) facing the polishing table (111), the mounting shafts of the polishing wheels (215) of the first mounting plate (213) and the second mounting plate (214) are each provided with a ring-shaped pressure sensor (503), and the visual identification module (502) and the ring-shaped pressure sensor (503) are both electrically connected with the control module (501).

6. The composite wheel adapted metal profile polishing device for welding pretreatment according to claim 5, characterized in that: The dust suction cover is provided with a dust discharge port at the top, the dust suction head (401) is arranged on the dust discharge port, the first mounting plate (213) and the second mounting plate (214) are each provided with a dust suction row (413) on one side, and the dust suction head (401) is arranged on the dust suction row (413).

7. The composite wheel adapted metal profile polishing device for welding pretreatment according to claim 1, characterized in that: The clamping member comprises a base (301), a first adjusting rod (302) and two groups of first guide rods (303), the polishing table (111) is provided with a convex edge on each side, and the first adjusting rod (302) and the two groups of first guide rods (303) are connected with the base (301) through the convex edges; The base (301) is provided with a mounting table (304) at the top, the mounting table (304) is provided with an adjusting plate (305) below, the mounting table (304) is provided with a second adjusting rod (306) and two groups of second guide rods (307) penetratingly arranged thereon, one end of the second adjusting rod (306) and the two groups of second guide rods (307) is connected with the adjusting plate (305), and the mounting table (304) and the adjusting plate (305) are each rotationally provided with a pressing wheel (308) on one side; The polishing table (111) is provided with a supporting table (112), and the supporting table (112) is provided with a placing groove (113).

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